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jpgraph_gantt.php@ 388

Last change on this file since 388 was 284, checked in by roby, 6 years ago

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[2]	1	<?php
	2	/*=======================================================================
[284]	3	// File: JPGRAPH_GANTT.PHP
	4	// Description: JpGraph Gantt plot extension
	5	// Created: 2001-11-12
	6	// Ver: $Id: jpgraph_gantt.php 1809 2009-09-09 13:07:33Z ljp $
	7	//
	8	// Copyright (c) Asial Corporation. All rights reserved.
	9	//========================================================================
	10	*/
[2]	11
[284]	12	require_once('jpgraph_plotband.php');
	13	require_once('jpgraph_iconplot.php');
[2]	14	require_once('jpgraph_plotmark.inc.php');
	15
	16	// Maximum size for Automatic Gantt chart
[284]	17	define('MAX_GANTTIMG_SIZE_W',8000);
[2]	18	define('MAX_GANTTIMG_SIZE_H',5000);
	19
	20	// Scale Header types
	21	define("GANTT_HDAY",1);
	22	define("GANTT_HWEEK",2);
	23	define("GANTT_HMONTH",4);
	24	define("GANTT_HYEAR",8);
	25	define("GANTT_HHOUR",16);
	26	define("GANTT_HMIN",32);
	27
	28	// Bar patterns
[284]	29	define("GANTT_RDIAG",BAND_RDIAG); // Right diagonal lines
[2]	30	define("GANTT_LDIAG",BAND_LDIAG); // Left diagonal lines
	31	define("GANTT_SOLID",BAND_SOLID); // Solid one color
	32	define("GANTT_VLINE",BAND_VLINE); // Vertical lines
	33	define("GANTT_HLINE",BAND_HLINE); // Horizontal lines
	34	define("GANTT_3DPLANE",BAND_3DPLANE); // "3D" Plane
	35	define("GANTT_HVCROSS",BAND_HVCROSS); // Vertical/Hor crosses
	36	define("GANTT_DIAGCROSS",BAND_DIAGCROSS); // Diagonal crosses
	37
	38	// Conversion constant
	39	define("SECPERDAY",3600*24);
	40
	41	// Locales. ONLY KEPT FOR BACKWARDS COMPATIBILITY
[284]	42	// You should use the proper locale strings directly
	43	// from now on.
[2]	44	define("LOCALE_EN","en_UK");
	45	define("LOCALE_SV","sv_SE");
	46
	47	// Layout of bars
	48	define("GANTT_EVEN",1);
	49	define("GANTT_FROMTOP",2);
	50
	51	// Style for minute header
[284]	52	define("MINUTESTYLE_MM",0); // 15
	53	define("MINUTESTYLE_CUSTOM",2); // Custom format
[2]	54
	55
	56	// Style for hour header
[284]	57	define("HOURSTYLE_HM24",0); // 13:10
	58	define("HOURSTYLE_HMAMPM",1); // 1:10pm
	59	define("HOURSTYLE_H24",2); // 13
	60	define("HOURSTYLE_HAMPM",3); // 1pm
	61	define("HOURSTYLE_CUSTOM",4); // User defined
[2]	62
	63	// Style for day header
[284]	64	define("DAYSTYLE_ONELETTER",0); // "M"
	65	define("DAYSTYLE_LONG",1); // "Monday"
	66	define("DAYSTYLE_LONGDAYDATE1",2); // "Monday 23 Jun"
	67	define("DAYSTYLE_LONGDAYDATE2",3); // "Monday 23 Jun 2003"
	68	define("DAYSTYLE_SHORT",4); // "Mon"
	69	define("DAYSTYLE_SHORTDAYDATE1",5); // "Mon 23/6"
	70	define("DAYSTYLE_SHORTDAYDATE2",6); // "Mon 23 Jun"
	71	define("DAYSTYLE_SHORTDAYDATE3",7); // "Mon 23"
	72	define("DAYSTYLE_SHORTDATE1",8); // "23/6"
	73	define("DAYSTYLE_SHORTDATE2",9); // "23 Jun"
	74	define("DAYSTYLE_SHORTDATE3",10); // "Mon 23"
	75	define("DAYSTYLE_SHORTDATE4",11); // "23"
	76	define("DAYSTYLE_CUSTOM",12); // "M"
[2]	77
	78	// Styles for week header
	79	define("WEEKSTYLE_WNBR",0);
	80	define("WEEKSTYLE_FIRSTDAY",1);
	81	define("WEEKSTYLE_FIRSTDAY2",2);
	82	define("WEEKSTYLE_FIRSTDAYWNBR",3);
	83	define("WEEKSTYLE_FIRSTDAY2WNBR",4);
	84
	85	// Styles for month header
	86	define("MONTHSTYLE_SHORTNAME",0);
	87	define("MONTHSTYLE_LONGNAME",1);
	88	define("MONTHSTYLE_LONGNAMEYEAR2",2);
	89	define("MONTHSTYLE_SHORTNAMEYEAR2",3);
	90	define("MONTHSTYLE_LONGNAMEYEAR4",4);
	91	define("MONTHSTYLE_SHORTNAMEYEAR4",5);
	92	define("MONTHSTYLE_FIRSTLETTER",6);
	93
	94
	95	// Types of constrain links
	96	define('CONSTRAIN_STARTSTART',0);
	97	define('CONSTRAIN_STARTEND',1);
	98	define('CONSTRAIN_ENDSTART',2);
	99	define('CONSTRAIN_ENDEND',3);
	100
	101	// Arrow direction for constrain links
	102	define('ARROW_DOWN',0);
	103	define('ARROW_UP',1);
	104	define('ARROW_LEFT',2);
	105	define('ARROW_RIGHT',3);
	106
	107	// Arrow type for constrain type
	108	define('ARROWT_SOLID',0);
	109	define('ARROWT_OPEN',1);
	110
	111	// Arrow size for constrain lines
	112	define('ARROW_S1',0);
	113	define('ARROW_S2',1);
	114	define('ARROW_S3',2);
	115	define('ARROW_S4',3);
	116	define('ARROW_S5',4);
	117
	118	// Activity types for use with utility method CreateSimple()
	119	define('ACTYPE_NORMAL',0);
	120	define('ACTYPE_GROUP',1);
	121	define('ACTYPE_MILESTONE',2);
	122
	123	define('ACTINFO_3D',1);
	124	define('ACTINFO_2D',0);
	125
	126
	127	// Check if array_fill() exists
	128	if (!function_exists('array_fill')) {
	129	function array_fill($iStart, $iLen, $vValue) {
[284]	130	$aResult = array();
	131	for ($iCount = $iStart; $iCount < $iLen + $iStart; $iCount++) {
	132	$aResult[$iCount] = $vValue;
	133	}
	134	return $aResult;
[2]	135	}
	136	}
	137
	138	//===================================================
	139	// CLASS GanttActivityInfo
[284]	140	// Description:
[2]	141	//===================================================
	142	class GanttActivityInfo {
	143	public $iShow=true;
	144	public $iLeftColMargin=4,$iRightColMargin=1,$iTopColMargin=1,$iBottomColMargin=3;
	145	public $vgrid = null;
	146	private $iColor='black';
	147	private $iBackgroundColor='lightgray';
	148	private $iFFamily=FF_FONT1,$iFStyle=FS_NORMAL,$iFSize=10,$iFontColor='black';
	149	private $iTitles=array();
	150	private $iWidth=array(),$iHeight=-1;
	151	private $iTopHeaderMargin = 4;
	152	private $iStyle=1;
	153	private $iHeaderAlign='center';
	154
[284]	155	function __construct() {
	156	$this->vgrid = new LineProperty();
[2]	157	}
	158
	159	function Hide($aF=true) {
[284]	160	$this->iShow=!$aF;
[2]	161	}
	162
	163	function Show($aF=true) {
[284]	164	$this->iShow=$aF;
[2]	165	}
	166
	167	// Specify font
	168	function SetFont($aFFamily,$aFStyle=FS_NORMAL,$aFSize=10) {
[284]	169	$this->iFFamily = $aFFamily;
	170	$this->iFStyle = $aFStyle;
	171	$this->iFSize = $aFSize;
[2]	172	}
	173
	174	function SetStyle($aStyle) {
[284]	175	$this->iStyle = $aStyle;
[2]	176	}
	177
	178	function SetColumnMargin($aLeft,$aRight) {
[284]	179	$this->iLeftColMargin = $aLeft;
	180	$this->iRightColMargin = $aRight;
[2]	181	}
	182
	183	function SetFontColor($aFontColor) {
[284]	184	$this->iFontColor = $aFontColor;
[2]	185	}
	186
	187	function SetColor($aColor) {
[284]	188	$this->iColor = $aColor;
[2]	189	}
	190
	191	function SetBackgroundColor($aColor) {
[284]	192	$this->iBackgroundColor = $aColor;
[2]	193	}
	194
	195	function SetColTitles($aTitles,$aWidth=null) {
[284]	196	$this->iTitles = $aTitles;
	197	$this->iWidth = $aWidth;
[2]	198	}
	199
	200	function SetMinColWidth($aWidths) {
[284]	201	$n = min(count($this->iTitles),count($aWidths));
	202	for($i=0; $i < $n; ++$i ) {
	203	if( !empty($aWidths[$i]) ) {
	204	if( empty($this->iWidth[$i]) ) {
	205	$this->iWidth[$i] = $aWidths[$i];
	206	}
	207	else {
	208	$this->iWidth[$i] = max($this->iWidth[$i],$aWidths[$i]);
	209	}
	210	}
	211	}
[2]	212	}
	213
	214	function GetWidth($aImg) {
[284]	215	$txt = new TextProperty();
	216	$txt->SetFont($this->iFFamily,$this->iFStyle,$this->iFSize);
	217	$n = count($this->iTitles) ;
	218	$rm=$this->iRightColMargin;
	219	$w = 0;
	220	for($h=0, $i=0; $i < $n; ++$i ) {
	221	$w += $this->iLeftColMargin;
	222	$txt->Set($this->iTitles[$i]);
	223	if( !empty($this->iWidth[$i]) ) {
	224	$w1 = max($txt->GetWidth($aImg)+$rm,$this->iWidth[$i]);
	225	}
	226	else {
	227	$w1 = $txt->GetWidth($aImg)+$rm;
	228	}
	229	$this->iWidth[$i] = $w1;
	230	$w += $w1;
	231	$h = max($h,$txt->GetHeight($aImg));
	232	}
	233	$this->iHeight = $h+$this->iTopHeaderMargin;
[2]	234	$txt='';
[284]	235	return $w;
[2]	236	}
[284]	237
[2]	238	function GetColStart($aImg,&$aStart,$aAddLeftMargin=false) {
[284]	239	$n = count($this->iTitles) ;
	240	$adj = $aAddLeftMargin ? $this->iLeftColMargin : 0;
	241	$aStart=array($aImg->left_margin+$adj);
	242	for( $i=1; $i < $n; ++$i ) {
	243	$aStart[$i] = $aStart[$i-1]+$this->iLeftColMargin+$this->iWidth[$i-1];
	244	}
[2]	245	}
[284]	246
[2]	247	// Adjust headers left, right or centered
	248	function SetHeaderAlign($aAlign) {
[284]	249	$this->iHeaderAlign=$aAlign;
[2]	250	}
	251
	252	function Stroke($aImg,$aXLeft,$aYTop,$aXRight,$aYBottom,$aUseTextHeight=false) {
	253
[284]	254	if( !$this->iShow ) return;
[2]	255
[284]	256	$txt = new TextProperty();
	257	$txt->SetFont($this->iFFamily,$this->iFStyle,$this->iFSize);
	258	$txt->SetColor($this->iFontColor);
	259	$txt->SetAlign($this->iHeaderAlign,'top');
	260	$n=count($this->iTitles);
[2]	261
[284]	262	if( $n == 0 )
	263	return;
[2]	264
[284]	265	$x = $aXLeft;
	266	$h = $this->iHeight;
	267	$yTop = $aUseTextHeight ? $aYBottom-$h-$this->iTopColMargin-$this->iBottomColMargin : $aYTop ;
[2]	268
[284]	269	if( $h < 0 ) {
	270	JpGraphError::RaiseL(6001);
	271	//('Internal error. Height for ActivityTitles is < 0');
	272	}
[2]	273
[284]	274	$aImg->SetLineWeight(1);
	275	// Set background color
	276	$aImg->SetColor($this->iBackgroundColor);
	277	$aImg->FilledRectangle($aXLeft,$yTop,$aXRight,$aYBottom-1);
[2]	278
[284]	279	if( $this->iStyle == 1 ) {
	280	// Make a 3D effect
	281	$aImg->SetColor('white');
	282	$aImg->Line($aXLeft,$yTop+1,$aXRight,$yTop+1);
	283	}
[2]	284
[284]	285	for($i=0; $i < $n; ++$i ) {
	286	if( $this->iStyle == 1 ) {
	287	// Make a 3D effect
	288	$aImg->SetColor('white');
	289	$aImg->Line($x+1,$yTop,$x+1,$aYBottom);
	290	}
	291	$x += $this->iLeftColMargin;
	292	$txt->Set($this->iTitles[$i]);
	293
	294	// Adjust the text anchor position according to the choosen alignment
	295	$xp = $x;
	296	if( $this->iHeaderAlign == 'center' ) {
	297	$xp = (($x-$this->iLeftColMargin)+($x+$this->iWidth[$i]))/2;
	298	}
	299	elseif( $this->iHeaderAlign == 'right' ) {
	300	$xp = $x +$this->iWidth[$i]-$this->iRightColMargin;
	301	}
	302
	303	$txt->Stroke($aImg,$xp,$yTop+$this->iTopHeaderMargin);
	304	$x += $this->iWidth[$i];
	305	if( $i < $n-1 ) {
	306	$aImg->SetColor($this->iColor);
	307	$aImg->Line($x,$yTop,$x,$aYBottom);
	308	}
	309	}
	310
	311	$aImg->SetColor($this->iColor);
	312	$aImg->Line($aXLeft,$yTop, $aXRight,$yTop);
	313
	314	// Stroke vertical column dividers
	315	$cols=array();
	316	$this->GetColStart($aImg,$cols);
	317	$n=count($cols);
	318	for( $i=1; $i < $n; ++$i ) {
	319	$this->vgrid->Stroke($aImg,$cols[$i],$aYBottom,$cols[$i],
	320	$aImg->height - $aImg->bottom_margin);
	321	}
[2]	322	}
	323	}
	324
	325
	326	//===================================================
	327	// CLASS GanttGraph
	328	// Description: Main class to handle gantt graphs
	329	//===================================================
	330	class GanttGraph extends Graph {
[284]	331	public $scale; // Public accessible
[2]	332	public $hgrid=null;
[284]	333	private $iObj=array(); // Gantt objects
	334	private $iLabelHMarginFactor=0.2; // 10% margin on each side of the labels
	335	private $iLabelVMarginFactor=0.4; // 40% margin on top and bottom of label
	336	private $iLayout=GANTT_FROMTOP; // Could also be GANTT_EVEN
[2]	337	private $iSimpleFont = FF_FONT1,$iSimpleFontSize=11;
	338	private $iSimpleStyle=GANTT_RDIAG,$iSimpleColor='yellow',$iSimpleBkgColor='red';
	339	private $iSimpleProgressBkgColor='gray',$iSimpleProgressColor='darkgreen';
	340	private $iSimpleProgressStyle=GANTT_SOLID;
[284]	341	private $iZoomFactor = 1.0;
	342	//---------------
	343	// CONSTRUCTOR
[2]	344	// Create a new gantt graph
[284]	345	function __construct($aWidth=0,$aHeight=0,$aCachedName="",$aTimeOut=0,$aInline=true) {
[2]	346
[284]	347	// Backward compatibility
	348	if( $aWidth == -1 ) $aWidth=0;
	349	if( $aHeight == -1 ) $aHeight=0;
[2]	350
[284]	351	if( $aWidth< 0 \|\| $aHeight < 0 ) {
	352	JpgraphError::RaiseL(6002);
	353	//("You can't specify negative sizes for Gantt graph dimensions. Use 0 to indicate that you want the library to automatically determine a dimension.");
	354	}
	355	parent::__construct($aWidth,$aHeight,$aCachedName,$aTimeOut,$aInline);
	356	$this->scale = new GanttScale($this->img);
[2]	357
[284]	358	// Default margins
	359	$this->img->SetMargin(15,17,25,15);
[2]	360
[284]	361	$this->hgrid = new HorizontalGridLine();
	362
	363	$this->scale->ShowHeaders(GANTT_HWEEK\|GANTT_HDAY);
	364	$this->SetBox();
[2]	365	}
	366
[284]	367	//---------------
	368	// PUBLIC METHODS
[2]	369
[284]	370	//
	371
[2]	372	function SetSimpleFont($aFont,$aSize) {
[284]	373	$this->iSimpleFont = $aFont;
	374	$this->iSimpleFontSize = $aSize;
[2]	375	}
	376
	377	function SetSimpleStyle($aBand,$aColor,$aBkgColor) {
[284]	378	$this->iSimpleStyle = $aBand;
	379	$this->iSimpleColor = $aColor;
	380	$this->iSimpleBkgColor = $aBkgColor;
[2]	381	}
	382
	383	// A utility function to help create basic Gantt charts
	384	function CreateSimple($data,$constrains=array(),$progress=array()) {
[284]	385	$num = count($data);
	386	for( $i=0; $i < $num; ++$i) {
	387	switch( $data[$i][1] ) {
	388	case ACTYPE_GROUP:
	389	// Create a slightly smaller height bar since the
	390	// "wings" at the end will make it look taller
	391	$a = new GanttBar($data[$i][0],$data[$i][2],$data[$i][3],$data[$i][4],'',8);
	392	$a->title->SetFont($this->iSimpleFont,FS_BOLD,$this->iSimpleFontSize);
	393	$a->rightMark->Show();
	394	$a->rightMark->SetType(MARK_RIGHTTRIANGLE);
	395	$a->rightMark->SetWidth(8);
	396	$a->rightMark->SetColor('black');
	397	$a->rightMark->SetFillColor('black');
[2]	398
[284]	399	$a->leftMark->Show();
	400	$a->leftMark->SetType(MARK_LEFTTRIANGLE);
	401	$a->leftMark->SetWidth(8);
	402	$a->leftMark->SetColor('black');
	403	$a->leftMark->SetFillColor('black');
[2]	404
[284]	405	$a->SetPattern(BAND_SOLID,'black');
	406	$csimpos = 6;
	407	break;
[2]	408
[284]	409	case ACTYPE_NORMAL:
	410	$a = new GanttBar($data[$i][0],$data[$i][2],$data[$i][3],$data[$i][4],'',10);
	411	$a->title->SetFont($this->iSimpleFont,FS_NORMAL,$this->iSimpleFontSize);
	412	$a->SetPattern($this->iSimpleStyle,$this->iSimpleColor);
	413	$a->SetFillColor($this->iSimpleBkgColor);
	414	// Check if this activity should have a constrain line
	415	$n = count($constrains);
	416	for( $j=0; $j < $n; ++$j ) {
	417	if( empty($constrains[$j]) \|\| (count($constrains[$j]) != 3) ) {
	418	JpGraphError::RaiseL(6003,$j);
	419	//("Invalid format for Constrain parameter at index=$j in CreateSimple(). Parameter must start with index 0 and contain arrays of (Row,Constrain-To,Constrain-Type)");
	420	}
	421	if( $constrains[$j][0]==$data[$i][0] ) {
	422	$a->SetConstrain($constrains[$j][1],$constrains[$j][2],'black',ARROW_S2,ARROWT_SOLID);
	423	}
	424	}
[2]	425
[284]	426	// Check if this activity have a progress bar
	427	$n = count($progress);
	428	for( $j=0; $j < $n; ++$j ) {
[2]	429
[284]	430	if( empty($progress[$j]) \|\| (count($progress[$j]) != 2) ) {
	431	JpGraphError::RaiseL(6004,$j);
	432	//("Invalid format for Progress parameter at index=$j in CreateSimple(). Parameter must start with index 0 and contain arrays of (Row,Progress)");
	433	}
	434	if( $progress[$j][0]==$data[$i][0] ) {
	435	$a->progress->Set($progress[$j][1]);
	436	$a->progress->SetPattern($this->iSimpleProgressStyle,
	437	$this->iSimpleProgressColor);
	438	$a->progress->SetFillColor($this->iSimpleProgressBkgColor);
	439	//$a->progress->SetPattern($progress[$j][2],$progress[$j][3]);
	440	break;
	441	}
	442	}
	443	$csimpos = 6;
	444	break;
	445
	446	case ACTYPE_MILESTONE:
	447	$a = new MileStone($data[$i][0],$data[$i][2],$data[$i][3]);
	448	$a->title->SetFont($this->iSimpleFont,FS_NORMAL,$this->iSimpleFontSize);
	449	$a->caption->SetFont($this->iSimpleFont,FS_NORMAL,$this->iSimpleFontSize);
	450	$csimpos = 5;
	451	break;
	452	default:
	453	die('Unknown activity type');
	454	break;
	455	}
	456
	457	// Setup caption
	458	$a->caption->Set($data[$i][$csimpos-1]);
	459
	460	// Check if this activity should have a CSIM targetï¿œ?
	461	if( !empty($data[$i][$csimpos]) ) {
	462	$a->SetCSIMTarget($data[$i][$csimpos]);
	463	$a->SetCSIMAlt($data[$i][$csimpos+1]);
	464	}
	465	if( !empty($data[$i][$csimpos+2]) ) {
	466	$a->title->SetCSIMTarget($data[$i][$csimpos+2]);
	467	$a->title->SetCSIMAlt($data[$i][$csimpos+3]);
	468	}
	469
	470	$this->Add($a);
	471	}
[2]	472	}
	473
[284]	474	// Set user specified scale zoom factor when auto sizing is used
	475	function SetZoomFactor($aZoom) {
	476	$this->iZoomFactor = $aZoom;
	477	}
	478
	479
[2]	480	// Set what headers should be shown
	481	function ShowHeaders($aFlg) {
[284]	482	$this->scale->ShowHeaders($aFlg);
[2]	483	}
[284]	484
	485	// Specify the fraction of the font height that should be added
[2]	486	// as vertical margin
	487	function SetLabelVMarginFactor($aVal) {
[284]	488	$this->iLabelVMarginFactor = $aVal;
[2]	489	}
	490
	491	// Synonym to the method above
	492	function SetVMarginFactor($aVal) {
[284]	493	$this->iLabelVMarginFactor = $aVal;
[2]	494	}
[284]	495
	496
[2]	497	// Add a new Gantt object
	498	function Add($aObject) {
[284]	499	if( is_array($aObject) && count($aObject) > 0 ) {
	500	$cl = $aObject[0];
	501	if( class_exists('IconPlot',false) && ($cl instanceof IconPlot) ) {
	502	$this->AddIcon($aObject);
	503	}
	504	elseif( class_exists('Text',false) && ($cl instanceof Text) ) {
	505	$this->AddText($aObject);
	506	}
	507	else {
	508	$n = count($aObject);
	509	for($i=0; $i < $n; ++$i)
	510	$this->iObj[] = $aObject[$i];
	511	}
	512	}
	513	else {
	514	if( class_exists('IconPlot',false) && ($aObject instanceof IconPlot) ) {
	515	$this->AddIcon($aObject);
	516	}
	517	elseif( class_exists('Text',false) && ($aObject instanceof Text) ) {
	518	$this->AddText($aObject);
	519	}
	520	else {
	521	$this->iObj[] = $aObject;
	522	}
	523	}
[2]	524	}
	525
[284]	526	function StrokeTexts() {
	527	// Stroke any user added text objects
	528	if( $this->texts != null ) {
	529	$n = count($this->texts);
	530	for($i=0; $i < $n; ++$i) {
	531	if( $this->texts[$i]->iScalePosX !== null && $this->texts[$i]->iScalePosY !== null ) {
	532	$x = $this->scale->TranslateDate($this->texts[$i]->iScalePosX);
	533	$y = $this->scale->TranslateVertPos($this->texts[$i]->iScalePosY);
	534	$y -= $this->scale->GetVertSpacing()/2;
	535	}
	536	else {
	537	$x = $y = null;
	538	}
	539	$this->texts[$i]->Stroke($this->img,$x,$y);
	540	}
	541	}
	542	}
	543
[2]	544	// Override inherit method from Graph and give a warning message
	545	function SetScale($aAxisType,$aYMin=1,$aYMax=1,$aXMin=1,$aXMax=1) {
[284]	546	JpGraphError::RaiseL(6005);
	547	//("SetScale() is not meaningfull with Gantt charts.");
[2]	548	}
	549
	550	// Specify the date range for Gantt graphs (if this is not set it will be
	551	// automtically determined from the input data)
	552	function SetDateRange($aStart,$aEnd) {
[284]	553	// Adjust the start and end so that the indicate the
	554	// begining and end of respective start and end days
	555	if( strpos($aStart,':') === false )
	556	$aStart = date('Y-m-d 00:00',strtotime($aStart));
	557	if( strpos($aEnd,':') === false )
	558	$aEnd = date('Y-m-d 23:59',strtotime($aEnd));
	559	$this->scale->SetRange($aStart,$aEnd);
[2]	560	}
[284]	561
[2]	562	// Get the maximum width of the activity titles columns for the bars
	563	// The name is lightly misleading since we from now on can have
	564	// multiple columns in the label section. When this was first written
	565	// it only supported a single label, hence the name.
	566	function GetMaxLabelWidth() {
[284]	567	$m=10;
	568	if( $this->iObj != null ) {
	569	$marg = $this->scale->actinfo->iLeftColMargin+$this->scale->actinfo->iRightColMargin;
	570	$n = count($this->iObj);
	571	for($i=0; $i < $n; ++$i) {
	572	if( !empty($this->iObj[$i]->title) ) {
	573	if( $this->iObj[$i]->title->HasTabs() ) {
	574	list($tot,$w) = $this->iObj[$i]->title->GetWidth($this->img,true);
	575	$m=max($m,$tot);
	576	}
	577	else
	578	$m=max($m,$this->iObj[$i]->title->GetWidth($this->img));
	579	}
	580	}
	581	}
	582	return $m;
[2]	583	}
[284]	584
[2]	585	// Get the maximum height of the titles for the bars
	586	function GetMaxLabelHeight() {
[284]	587	$m=10;
	588	if( $this->iObj != null ) {
	589	$n = count($this->iObj);
	590	// We can not include the title of GnttVLine since that title is stroked at the bottom
	591	// of the Gantt bar and not in the activity title columns
	592	for($i=0; $i < $n; ++$i) {
	593	if( !empty($this->iObj[$i]->title) && !($this->iObj[$i] instanceof GanttVLine) ) {
	594	$m=max($m,$this->iObj[$i]->title->GetHeight($this->img));
	595	}
	596	}
	597	}
	598	return $m;
[2]	599	}
	600
	601	function GetMaxBarAbsHeight() {
[284]	602	$m=0;
	603	if( $this->iObj != null ) {
	604	$m = $this->iObj[0]->GetAbsHeight($this->img);
	605	$n = count($this->iObj);
	606	for($i=1; $i < $n; ++$i) {
	607	$m=max($m,$this->iObj[$i]->GetAbsHeight($this->img));
	608	}
	609	}
	610	return $m;
[2]	611	}
[284]	612
[2]	613	// Get the maximum used line number (vertical position) for bars
	614	function GetBarMaxLineNumber() {
[284]	615	$m=1;
	616	if( $this->iObj != null ) {
	617	$m = $this->iObj[0]->GetLineNbr();
	618	$n = count($this->iObj);
	619	for($i=1; $i < $n; ++$i) {
	620	$m=max($m,$this->iObj[$i]->GetLineNbr());
	621	}
	622	}
	623	return $m;
[2]	624	}
[284]	625
[2]	626	// Get the minumum and maximum used dates for all bars
	627	function GetBarMinMax() {
[284]	628	$start = 0 ;
	629	$n = count($this->iObj);
	630	while( $start < $n && $this->iObj[$start]->GetMaxDate() === false )
	631	++$start;
	632	if( $start >= $n ) {
	633	JpgraphError::RaiseL(6006);
	634	//('Cannot autoscale Gantt chart. No dated activities exist. [GetBarMinMax() start >= n]');
	635	}
[2]	636
[284]	637	$max=$this->scale->NormalizeDate($this->iObj[$start]->GetMaxDate());
	638	$min=$this->scale->NormalizeDate($this->iObj[$start]->GetMinDate());
[2]	639
[284]	640	for($i=$start+1; $i < $n; ++$i) {
	641	$rmax = $this->scale->NormalizeDate($this->iObj[$i]->GetMaxDate());
	642	if( $rmax != false )
	643	$max=Max($max,$rmax);
	644	$rmin = $this->scale->NormalizeDate($this->iObj[$i]->GetMinDate());
	645	if( $rmin != false )
	646	$min=Min($min,$rmin);
	647	}
	648	$minDate = date("Y-m-d",$min);
	649	$min = strtotime($minDate);
	650	$maxDate = date("Y-m-d 23:59",$max);
	651	$max = strtotime($maxDate);
	652	return array($min,$max);
[2]	653	}
	654
	655	// Create a new auto sized canvas if the user hasn't specified a size
	656	// The size is determined by what scale the user has choosen and hence
	657	// the minimum width needed to display the headers. Some margins are
	658	// also added to make it better looking.
	659	function AutoSize() {
	660
[284]	661	if( $this->img->img == null ) {
	662	// The predefined left, right, top, bottom margins.
	663	// Note that the top margin might incease depending on
	664	// the title.
	665	$hadj = $vadj = 0;
	666	if( $this->doshadow ) {
	667	$hadj = $this->shadow_width;
	668	$vadj = $this->shadow_width+5;
	669	}
[2]	670
[284]	671	$lm = $this->img->left_margin;
	672	$rm = $this->img->right_margin +$hadj;
	673	$rm += 2 ;
	674	$tm = $this->img->top_margin;
	675	$bm = $this->img->bottom_margin + $vadj;
	676	$bm += 2;
[2]	677
[284]	678	// If there are any added GanttVLine we must make sure that the
	679	// bottom margin is wide enough to hold a title.
	680	$n = count($this->iObj);
	681	for($i=0; $i < $n; ++$i) {
	682	if( $this->iObj[$i] instanceof GanttVLine ) {
	683	$bm = max($bm,$this->iObj[$i]->title->GetHeight($this->img)+10);
	684	}
	685	}
[2]	686
[284]	687	// First find out the height
	688	$n=$this->GetBarMaxLineNumber()+1;
	689	$m=max($this->GetMaxLabelHeight(),$this->GetMaxBarAbsHeight());
	690	$height=$n((1+$this->iLabelVMarginFactor)$m);
[2]	691
[284]	692	// Add the height of the scale titles
	693	$h=$this->scale->GetHeaderHeight();
	694	$height += $h;
[2]	695
[284]	696	// Calculate the top margin needed for title and subtitle
	697	if( $this->title->t != "" ) {
	698	$tm += $this->title->GetFontHeight($this->img);
	699	}
	700	if( $this->subtitle->t != "" ) {
	701	$tm += $this->subtitle->GetFontHeight($this->img);
	702	}
	703
	704	// ...and then take the bottom and top plot margins into account
	705	$height += $tm + $bm + $this->scale->iTopPlotMargin + $this->scale->iBottomPlotMargin;
	706	// Now find the minimum width for the chart required
	707
	708	// If day scale or smaller is shown then we use the day font width
	709	// as the base size unit.
	710	// If only weeks or above is displayed we use a modified unit to
	711	// get a smaller image.
	712	if( $this->scale->IsDisplayHour() \|\| $this->scale->IsDisplayMinute() ) {
	713	// Add 2 pixel margin on each side
	714	$fw=$this->scale->day->GetFontWidth($this->img)+4;
	715	}
	716	elseif( $this->scale->IsDisplayWeek() ) {
	717	$fw = 8;
	718	}
	719	elseif( $this->scale->IsDisplayMonth() ) {
	720	$fw = 4;
	721	}
	722	else {
	723	$fw = 2;
	724	}
	725
	726	$nd=$this->scale->GetNumberOfDays();
	727
	728	if( $this->scale->IsDisplayDay() ) {
	729	// If the days are displayed we also need to figure out
	730	// how much space each day's title will require.
	731	switch( $this->scale->day->iStyle ) {
	732	case DAYSTYLE_LONG :
	733	$txt = "Monday";
	734	break;
	735	case DAYSTYLE_LONGDAYDATE1 :
	736	$txt = "Monday 23 Jun";
	737	break;
	738	case DAYSTYLE_LONGDAYDATE2 :
	739	$txt = "Monday 23 Jun 2003";
	740	break;
	741	case DAYSTYLE_SHORT :
	742	$txt = "Mon";
	743	break;
	744	case DAYSTYLE_SHORTDAYDATE1 :
[2]	745	$txt = "Mon 23/6";
[284]	746	break;
	747	case DAYSTYLE_SHORTDAYDATE2 :
	748	$txt = "Mon 23 Jun";
	749	break;
	750	case DAYSTYLE_SHORTDAYDATE3 :
	751	$txt = "Mon 23";
	752	break;
	753	case DAYSTYLE_SHORTDATE1 :
[2]	754	$txt = "23/6";
[284]	755	break;
	756	case DAYSTYLE_SHORTDATE2 :
	757	$txt = "23 Jun";
	758	break;
	759	case DAYSTYLE_SHORTDATE3 :
	760	$txt = "Mon 23";
	761	break;
	762	case DAYSTYLE_SHORTDATE4 :
	763	$txt = "88";
	764	break;
	765	case DAYSTYLE_CUSTOM :
	766	$txt = date($this->scale->day->iLabelFormStr,strtotime('2003-12-20 18:00'));
	767	break;
	768	case DAYSTYLE_ONELETTER :
	769	default:
	770	$txt = "M";
	771	break;
	772	}
	773	$fw = $this->scale->day->GetStrWidth($this->img,$txt)+6;
	774	}
[2]	775
[284]	776	// If we have hours enabled we must make sure that each day has enough
	777	// space to fit the number of hours to be displayed.
	778	if( $this->scale->IsDisplayHour() ) {
	779	// Depending on what format the user has choose we need different amount
	780	// of space. We therefore create a typical string for the choosen format
	781	// and determine the length of that string.
	782	switch( $this->scale->hour->iStyle ) {
	783	case HOURSTYLE_HMAMPM:
	784	$txt = '12:00pm';
	785	break;
	786	case HOURSTYLE_H24:
	787	// 13
	788	$txt = '24';
	789	break;
	790	case HOURSTYLE_HAMPM:
	791	$txt = '12pm';
	792	break;
	793	case HOURSTYLE_CUSTOM:
	794	$txt = date($this->scale->hour->iLabelFormStr,strtotime('2003-12-20 18:00'));
	795	break;
	796	case HOURSTYLE_HM24:
	797	default:
	798	$txt = '24:00';
	799	break;
	800	}
[2]	801
[284]	802	$hfw = $this->scale->hour->GetStrWidth($this->img,$txt)+6;
	803	$mw = $hfw;
	804	if( $this->scale->IsDisplayMinute() ) {
	805	// Depending on what format the user has choose we need different amount
	806	// of space. We therefore create a typical string for the choosen format
	807	// and determine the length of that string.
	808	switch( $this->scale->minute->iStyle ) {
	809	case HOURSTYLE_CUSTOM:
	810	$txt2 = date($this->scale->minute->iLabelFormStr,strtotime('2005-05-15 18:55'));
	811	break;
	812	case MINUTESTYLE_MM:
	813	default:
	814	$txt2 = '15';
	815	break;
	816	}
[2]	817
[284]	818	$mfw = $this->scale->minute->GetStrWidth($this->img,$txt2)+6;
	819	$n2 = ceil(60 / $this->scale->minute->GetIntervall() );
	820	$mw = $n2 * $mfw;
	821	}
	822	$hfw = $hfw < $mw ? $mw : $hfw ;
	823	$n = ceil(24*60 / $this->scale->TimeToMinutes($this->scale->hour->GetIntervall()) );
	824	$hw = $n * $hfw;
	825	$fw = $fw < $hw ? $hw : $fw ;
	826	}
[2]	827
[284]	828	// We need to repeat this code block here as well.
	829	// THIS iS NOT A MISTAKE !
	830	// We really need it since we need to adjust for minutes both in the case
	831	// where hour scale is shown and when it is not shown.
[2]	832
[284]	833	if( $this->scale->IsDisplayMinute() ) {
	834	// Depending on what format the user has choose we need different amount
	835	// of space. We therefore create a typical string for the choosen format
	836	// and determine the length of that string.
	837	switch( $this->scale->minute->iStyle ) {
	838	case HOURSTYLE_CUSTOM:
	839	$txt = date($this->scale->minute->iLabelFormStr,strtotime('2005-05-15 18:55'));
	840	break;
	841	case MINUTESTYLE_MM:
	842	default:
	843	$txt = '15';
	844	break;
	845	}
[2]	846
[284]	847	$mfw = $this->scale->minute->GetStrWidth($this->img,$txt)+6;
	848	$n = ceil(60 / $this->scale->TimeToMinutes($this->scale->minute->GetIntervall()) );
	849	$mw = $n * $mfw;
	850	$fw = $fw < $mw ? $mw : $fw ;
	851	}
[2]	852
[284]	853	// If we display week we must make sure that 7*$fw is enough
	854	// to fit up to 10 characters of the week font (if the week is enabled)
	855	if( $this->scale->IsDisplayWeek() ) {
	856	// Depending on what format the user has choose we need different amount
	857	// of space
	858	$fsw = strlen($this->scale->week->iLabelFormStr);
	859	if( $this->scale->week->iStyle==WEEKSTYLE_FIRSTDAY2WNBR ) {
	860	$fsw += 8;
	861	}
	862	elseif( $this->scale->week->iStyle==WEEKSTYLE_FIRSTDAYWNBR ) {
	863	$fsw += 7;
	864	}
	865	else {
	866	$fsw += 4;
	867	}
[2]	868
[284]	869	$ww = $fsw*$this->scale->week->GetFontWidth($this->img);
	870	if( 7*$fw < $ww ) {
	871	$fw = ceil($ww/7);
	872	}
	873	}
[2]	874
[284]	875	if( !$this->scale->IsDisplayDay() && !$this->scale->IsDisplayHour() &&
	876	!( ($this->scale->week->iStyle==WEEKSTYLE_FIRSTDAYWNBR \|\|
	877	$this->scale->week->iStyle==WEEKSTYLE_FIRSTDAY2WNBR) && $this->scale->IsDisplayWeek() ) ) {
	878	// If we don't display the individual days we can shrink the
	879	// scale a little bit. This is a little bit pragmatic at the
	880	// moment and should be re-written to take into account
	881	// a) What scales exactly are shown and
	882	// b) what format do they use so we know how wide we need to
	883	// make each scale text space at minimum.
	884	$fw /= 2;
	885	if( !$this->scale->IsDisplayWeek() ) {
	886	$fw /= 1.8;
	887	}
	888	}
[2]	889
[284]	890	$cw = $this->GetMaxActInfoColWidth() ;
	891	$this->scale->actinfo->SetMinColWidth($cw);
	892	if( $this->img->width <= 0 ) {
	893	// Now determine the width for the activity titles column
[2]	894
[284]	895	// Firdst find out the maximum width of each object column
	896	$titlewidth = max(max($this->GetMaxLabelWidth(),
	897	$this->scale->tableTitle->GetWidth($this->img)),
	898	$this->scale->actinfo->GetWidth($this->img));
[2]	899
[284]	900	// Add the width of the vertivcal divider line
	901	$titlewidth += $this->scale->divider->iWeight*2;
	902
	903	// Adjust the width by the user specified zoom factor
	904	$fw *= $this->iZoomFactor;
	905
	906	// Now get the total width taking
	907	// titlewidth, left and rigt margin, dayfont size
	908	// into account
	909	$width = $titlewidth + $nd*$fw + $lm+$rm;
	910	}
	911	else {
	912	$width = $this->img->width;
	913	}
	914
	915	$width = round($width);
	916	$height = round($height);
	917	// Make a sanity check on image size
	918	if( $width > MAX_GANTTIMG_SIZE_W \|\| $height > MAX_GANTTIMG_SIZE_H ) {
	919	JpgraphError::RaiseL(6007,$width,$height);
	920	//("Sanity check for automatic Gantt chart size failed. Either the width (=$width) or height (=$height) is larger than MAX_GANTTIMG_SIZE. This could potentially be caused by a wrong date in one of the activities.");
	921	}
	922	$this->img->CreateImgCanvas($width,$height);
	923	$this->img->SetMargin($lm,$rm,$tm,$bm);
	924	}
[2]	925	}
	926
	927	// Return an array width the maximum width for each activity
	928	// column. This is used when we autosize the columns where we need
	929	// to find out the maximum width of each column. In order to do that we
	930	// must walk through all the objects, sigh...
	931	function GetMaxActInfoColWidth() {
[284]	932	$n = count($this->iObj);
	933	if( $n == 0 ) return;
	934	$w = array();
	935	$m = $this->scale->actinfo->iLeftColMargin + $this->scale->actinfo->iRightColMargin;
	936
	937	for( $i=0; $i < $n; ++$i ) {
	938	$tmp = $this->iObj[$i]->title->GetColWidth($this->img,$m);
	939	$nn = count($tmp);
	940	for( $j=0; $j < $nn; ++$j ) {
	941	if( empty($w[$j]) )
	942	$w[$j] = $tmp[$j];
	943	else
	944	$w[$j] = max($w[$j],$tmp[$j]);
	945	}
	946	}
	947	return $w;
[2]	948	}
	949
	950	// Stroke the gantt chart
[284]	951	function Stroke($aStrokeFileName="") {
[2]	952
[284]	953	// If the filename is the predefined value = '_csim_special_'
	954	// we assume that the call to stroke only needs to do enough
	955	// to correctly generate the CSIM maps.
	956	// We use this variable to skip things we don't strictly need
	957	// to do to generate the image map to improve performance
	958	// a best we can. Therefor you will see a lot of tests !$_csim in the
	959	// code below.
	960	$_csim = ($aStrokeFileName===_CSIM_SPECIALFILE);
[2]	961
[284]	962	// Should we autoscale dates?
[2]	963
[284]	964	if( !$this->scale->IsRangeSet() ) {
	965	list($min,$max) = $this->GetBarMinMax();
	966	$this->scale->SetRange($min,$max);
	967	}
[2]	968
[284]	969	$this->scale->AdjustStartEndDay();
[2]	970
[284]	971	// Check if we should autoscale the image
	972	$this->AutoSize();
[2]	973
[284]	974	// Should we start from the top or just spread the bars out even over the
	975	// available height
	976	$this->scale->SetVertLayout($this->iLayout);
	977	if( $this->iLayout == GANTT_FROMTOP ) {
	978	$maxheight=max($this->GetMaxLabelHeight(),$this->GetMaxBarAbsHeight());
	979	$this->scale->SetVertSpacing($maxheight*(1+$this->iLabelVMarginFactor));
	980	}
	981	// If it hasn't been set find out the maximum line number
	982	if( $this->scale->iVertLines == -1 )
	983	$this->scale->iVertLines = $this->GetBarMaxLineNumber()+1;
[2]	984
[284]	985	$maxwidth=max($this->scale->actinfo->GetWidth($this->img),
	986	max($this->GetMaxLabelWidth(),
	987	$this->scale->tableTitle->GetWidth($this->img)));
[2]	988
[284]	989	$this->scale->SetLabelWidth($maxwidth+$this->scale->divider->iWeight);//*(1+$this->iLabelHMarginFactor));
[2]	990
[284]	991	if( !$_csim ) {
	992	$this->StrokePlotArea();
	993	if( $this->iIconDepth == DEPTH_BACK ) {
	994	$this->StrokeIcons();
	995	}
	996	}
[2]	997
[284]	998	$this->scale->Stroke();
[2]	999
[284]	1000	if( !$_csim ) {
	1001	// Due to a minor off by 1 bug we need to temporarily adjust the margin
	1002	$this->img->right_margin--;
	1003	$this->StrokePlotBox();
	1004	$this->img->right_margin++;
	1005	}
[2]	1006
[284]	1007	// Stroke Grid line
	1008	$this->hgrid->Stroke($this->img,$this->scale);
[2]	1009
[284]	1010	$n = count($this->iObj);
	1011	for($i=0; $i < $n; ++$i) {
	1012	//$this->iObj[$i]->SetLabelLeftMargin(round($maxwidth*$this->iLabelHMarginFactor/2));
	1013	$this->iObj[$i]->Stroke($this->img,$this->scale);
	1014	}
[2]	1015
[284]	1016	$this->StrokeTitles();
[2]	1017
[284]	1018	if( !$_csim ) {
	1019	$this->StrokeConstrains();
	1020	$this->footer->Stroke($this->img);
[2]	1021
	1022
[284]	1023	if( $this->iIconDepth == DEPTH_FRONT) {
	1024	$this->StrokeIcons();
	1025	}
	1026
	1027	// Stroke all added user texts
	1028	$this->StrokeTexts();
	1029
	1030	// Should we do any final image transformation
	1031	if( $this->iImgTrans ) {
	1032	if( !class_exists('ImgTrans',false) ) {
	1033	require_once('jpgraph_imgtrans.php');
	1034	}
	1035
	1036	$tform = new ImgTrans($this->img->img);
	1037	$this->img->img = $tform->Skew3D($this->iImgTransHorizon,$this->iImgTransSkewDist,
	1038	$this->iImgTransDirection,$this->iImgTransHighQ,
	1039	$this->iImgTransMinSize,$this->iImgTransFillColor,
	1040	$this->iImgTransBorder);
	1041	}
	1042
	1043
	1044	// If the filename is given as the special "__handle"
	1045	// then the image handler is returned and the image is NOT
	1046	// streamed back
	1047	if( $aStrokeFileName == _IMG_HANDLER ) {
	1048	return $this->img->img;
	1049	}
	1050	else {
	1051	// Finally stream the generated picture
	1052	$this->cache->PutAndStream($this->img,$this->cache_name,$this->inline,
	1053	$aStrokeFileName);
	1054	}
	1055	}
[2]	1056	}
	1057
	1058	function StrokeConstrains() {
[284]	1059	$n = count($this->iObj);
[2]	1060
[284]	1061	// Stroke all constrains
	1062	for($i=0; $i < $n; ++$i) {
[2]	1063
[284]	1064	// Some gantt objects may not have constraints associated with them
	1065	// for example we can add IconPlots which doesn't have this property.
	1066	if( empty($this->iObj[$i]->constraints) ) continue;
[2]	1067
[284]	1068	$numConstrains = count($this->iObj[$i]->constraints);
[2]	1069
[284]	1070	for( $k = 0; $k < $numConstrains; $k++ ) {
	1071	$vpos = $this->iObj[$i]->constraints[$k]->iConstrainRow;
	1072	if( $vpos >= 0 ) {
	1073	$c1 = $this->iObj[$i]->iConstrainPos;
[2]	1074
[284]	1075	// Find out which object is on the target row
	1076	$targetobj = -1;
	1077	for( $j=0; $j < $n && $targetobj == -1; ++$j ) {
	1078	if( $this->iObj[$j]->iVPos == $vpos ) {
	1079	$targetobj = $j;
	1080	}
	1081	}
	1082	if( $targetobj == -1 ) {
	1083	JpGraphError::RaiseL(6008,$this->iObj[$i]->iVPos,$vpos);
	1084	//('You have specifed a constrain from row='.$this->iObj[$i]->iVPos.' to row='.$vpos.' which does not have any activity.');
	1085	}
	1086	$c2 = $this->iObj[$targetobj]->iConstrainPos;
	1087	if( count($c1) == 4 && count($c2 ) == 4) {
	1088	switch( $this->iObj[$i]->constraints[$k]->iConstrainType ) {
	1089	case CONSTRAIN_ENDSTART:
	1090	if( $c1[1] < $c2[1] ) {
	1091	$link = new GanttLink($c1[2],$c1[3],$c2[0],$c2[1]);
	1092	}
	1093	else {
	1094	$link = new GanttLink($c1[2],$c1[1],$c2[0],$c2[3]);
	1095	}
	1096	$link->SetPath(3);
	1097	break;
	1098	case CONSTRAIN_STARTEND:
	1099	if( $c1[1] < $c2[1] ) {
	1100	$link = new GanttLink($c1[0],$c1[3],$c2[2],$c2[1]);
	1101	}
	1102	else {
	1103	$link = new GanttLink($c1[0],$c1[1],$c2[2],$c2[3]);
	1104	}
	1105	$link->SetPath(0);
	1106	break;
	1107	case CONSTRAIN_ENDEND:
	1108	if( $c1[1] < $c2[1] ) {
	1109	$link = new GanttLink($c1[2],$c1[3],$c2[2],$c2[1]);
	1110	}
	1111	else {
	1112	$link = new GanttLink($c1[2],$c1[1],$c2[2],$c2[3]);
	1113	}
	1114	$link->SetPath(1);
	1115	break;
	1116	case CONSTRAIN_STARTSTART:
	1117	if( $c1[1] < $c2[1] ) {
	1118	$link = new GanttLink($c1[0],$c1[3],$c2[0],$c2[1]);
	1119	}
	1120	else {
	1121	$link = new GanttLink($c1[0],$c1[1],$c2[0],$c2[3]);
	1122	}
	1123	$link->SetPath(3);
	1124	break;
	1125	default:
	1126	JpGraphError::RaiseL(6009,$this->iObj[$i]->iVPos,$vpos);
	1127	//('Unknown constrain type specified from row='.$this->iObj[$i]->iVPos.' to row='.$vpos);
	1128	break;
	1129	}
[2]	1130
[284]	1131	$link->SetColor($this->iObj[$i]->constraints[$k]->iConstrainColor);
	1132	$link->SetArrow($this->iObj[$i]->constraints[$k]->iConstrainArrowSize,
	1133	$this->iObj[$i]->constraints[$k]->iConstrainArrowType);
	1134
	1135	$link->Stroke($this->img);
	1136	}
	1137	}
	1138	}
	1139	}
[2]	1140	}
	1141
	1142	function GetCSIMAreas() {
[284]	1143	if( !$this->iHasStroked )
	1144	$this->Stroke(_CSIM_SPECIALFILE);
[2]	1145
[284]	1146	$csim = $this->title->GetCSIMAreas();
	1147	$csim .= $this->subtitle->GetCSIMAreas();
	1148	$csim .= $this->subsubtitle->GetCSIMAreas();
	1149
	1150	$n = count($this->iObj);
	1151	for( $i=$n-1; $i >= 0; --$i )
	1152	$csim .= $this->iObj[$i]->GetCSIMArea();
	1153	return $csim;
[2]	1154	}
	1155	}
	1156
	1157	//===================================================
	1158	// CLASS PredefIcons
	1159	// Description: Predefined icons for use with Gantt charts
	1160	//===================================================
	1161	define('GICON_WARNINGRED',0);
	1162	define('GICON_TEXT',1);
	1163	define('GICON_ENDCONS',2);
	1164	define('GICON_MAIL',3);
	1165	define('GICON_STARTCONS',4);
	1166	define('GICON_CALC',5);
	1167	define('GICON_MAGNIFIER',6);
	1168	define('GICON_LOCK',7);
	1169	define('GICON_STOP',8);
	1170	define('GICON_WARNINGYELLOW',9);
	1171	define('GICON_FOLDEROPEN',10);
	1172	define('GICON_FOLDER',11);
	1173	define('GICON_TEXTIMPORTANT',12);
	1174
	1175	class PredefIcons {
	1176	private $iBuiltinIcon = null, $iLen = -1 ;
	1177
	1178	function GetLen() {
[284]	1179	return $this->iLen ;
[2]	1180	}
	1181
	1182	function GetImg($aIdx) {
[284]	1183	if( $aIdx < 0 \|\| $aIdx >= $this->iLen ) {
	1184	JpGraphError::RaiseL(6010,$aIdx);
	1185	//('Illegal icon index for Gantt builtin icon ['.$aIdx.']');
	1186	}
	1187	return Image::CreateFromString(base64_decode($this->iBuiltinIcon[$aIdx][1]));
[2]	1188	}
	1189
[284]	1190	function __construct() {
	1191	//==========================================================
	1192	// warning.png
	1193	//==========================================================
	1194	$this->iBuiltinIcon[0][0]= 1043 ;
	1195	$this->iBuiltinIcon[0][1]=
	1196	'iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsSAAALEgHS3X78AAAA'.
	1197	'B3RJTUUH0wgKFSgilWPhUQAAA6BJREFUeNrtl91rHFUYh5/3zMx+Z5JNUoOamCZNaqTZ6IWIkqRiQWmi1IDetHfeiCiltgXBP8AL'.
	1198	'0SIUxf/AvfRSBS9EKILFFqyIH9CEmFZtPqrBJLs7c+b1YneT3WTTbNsUFPLCcAbmzPt73o9zzgzs2Z793231UOdv3w9k9Z2uzOdA'.
	1199	'5+2+79yNeL7Hl7hw7oeixRMZ6PJM26W18DNAm/Vh7lR8fqh97NmMF11es1iFpMATqdirwMNA/J4DpIzkr5YsAF1PO6gIMYHRdPwl'.
	1200	'oO2elmB+qH3sm7XozbkgYvy8SzYnZPtcblyM6I+5z3jQ+0vJfgpEu56BfI9vUkbyi2HZd1QJoeWRiAjBd4SDCW8SSAOy6wBHMzF7'.
	1201	'YdV2A+ROuvRPLfHoiSU0EMY/cDAIhxJeGngKaN1VgHyPL7NBxI1K9P4QxBzw3K1zJ/zkG8B9uwaQ7/HNsRZv9kohBGD0o7JqMYS/'.
	1202	'/ynPidQw/LrBiPBcS/yFCT95DvB2BWAy4575PaQbQKW+tPd3GCItu2odKI++YxiKu0d26oWmAD7paZU/rLz37VqIijD2YbnzNBBE'.
	1203	'IBHf8K8qjL7vYhCGErEU8CTg3xXAeMp96GrJEqkyXkm9Bhui1xfsunjdGhcYLq+IzjsGmBt5YH/cmJkFq6gIqlon3u4LxdKGuCIo'.
	1204	'Qu41g0E41po+2R33Xt5uz9kRIB2UTle7PnfKrROP1HD4sRjZlq0lzhwoZ6rDNeTi3nEg1si/7FT7kYQbXS6E5E65tA5uRF9tutq0'.
	1205	'K/VwAF+/FbIYWt6+tjQM/AqUms7A4Wy6d7YSfSNxgMmzi0ycWWworio4QJvj4LpuL5BqugTnXzzqJsJwurrlNhJXFaavW67NRw3F'.
	1206	'q+aJcCQVe9fzvJGmAY7/dPH0gi0f64OveGxa+usCuQMeZ0+kt8BVrX+qPO9Bzx0MgqBvs+a2PfDdYIf+WAjXU1ub4tqNaPPzRs8A'.
	1207	'blrli+WVn79cXn0cWKl+tGx7HLc7pu3CSmnfitL+l1UihAhwjFkPQev4K/fSABjBM8JCaFuurJU+rgW41SroA8aNMVNAFtgHJCsn'.
	1208	'XGy/58QVxAC9MccJtZ5kIzNlW440WrJ2ea4YPA9cAooA7i0A/gS+iqLoOpB1HOegqrYB3UBmJrAtQAJwpwPr1Ry92wVlgZsiYlW1'.
	1209	'uX1gU36dymgqYxJIJJNJT1W9QqHgNwFQBGYqo94OwHZQUuPD7ACglSvc+5n5T9m/wfJJX4U9qzEAAAAASUVORK5CYII=' ;
[2]	1210
[284]	1211	//==========================================================
	1212	// edit.png
	1213	//==========================================================
	1214	$this->iBuiltinIcon[1][0]= 959 ;
	1215	$this->iBuiltinIcon[1][1]=
	1216	'iVBORw0KGgoAAAANSUhEUgAAABYAAAAWCAYAAADEtGw7AAAABGdBTUEAALGPC/xhBQAAAAZiS0dEAFgAWABY9j+ZuwAAAAlwSFlz'.
	1217	'AAALEAAACxABrSO9dQAAAAd0SU1FB9AKDAwbIEXOA6AAAAM8SURBVHicpdRPaBxlHMbx76ZvsmOTmm1dsEqQSIIsEmGVBAQjivEQ'.
	1218	'PAUJngpWsAWlBw8egpQepKwplN4ULEG9CjkEyUFKlSJrWTG0IU51pCsdYW2ncUPjdtp9Z+f3vuNhu8nKbmhaf5cZeGc+PO8zf1Lc'.
	1219	'm0KhkACICCKCMeaBjiLC0tLSnjNvPmuOHRpH0TZTU1M8zBi9wakzn7OFTs5sw8YYACYmJrre7HkeuVyu69qPF77hlT1XmZ0eQ03O'.
	1220	'wOLJTvhBx1rLz18VmJ0eY+jVd2FxDkKXnvYLHgb97OgLzE4ON9Hzc1B1QaQzsed5O0Lta3Ec89OnR5h5McfQ+Mw2qgQUnfBOPbZ3'.
	1221	'bK3l+xOvMT0+3ERLp5FNF6UEjcL32+DdVmGt5WLhDYYPZrbRqreFumXwql0S3w9tnDvLWD5PZigPpdOwuYpSCo3C8wU3UHxQdHbf'.
	1222	'cZIkNM6dxcnlUM4k1eUFMlUPpUADbpkttFarHe6oYqeOr6yt4RzMQHYUcUsQVtGicHDwKprViuLDkkOtVnsHCHZVRVy/zcj1i5Af'.
	1223	'h8AjdIts+hUcGcYPK3iBtKM3gD/uAzf/AdY2mmmVgy6X8YNNKmGIvyloPcB8SUin07RQ4EZHFdsdG0wkJEnEaHAJxvKEpSLeaokV'.
	1224	'r4zWmhUZYLlY4b1D03y5eIEWCtS7vsciAgiIxkQRabWOrlQor66y4pUphoJb1jiO4uO5o0S3q6RSqVbiOmC7VCEgAhLSaDQ48dH7'.
	1225	'vD46REY0iysegSjKQciRt99ib7qXwX0O+pG4teM6YKHLB9JMq4mTmF9/+AKA4wvLZByH7OgYL7+UY2qvw/7Bfg5kHiXjJFyv3CGO'.
	1226	'Y1rof+BW4t/XLiPG0DCGr79d4XzRxRnIMn98huXSTYyJ6et1UNYQhRvcinpJq86H3wGPPPM0iBDd+QffD1g4eZjLvuG7S1Wef26E'.
	1227	'J7L7eSx7gAHVg7V3MSbi6m/r93baBd6qQjerAJg/9Ql/XrvG0ON1+vv7GH3qSfY5fahUnSTpwZgIEQesaVXRPbHRG/xyJSAxMYlp'.
	1228	'EOm71HUINiY7mGb95l/8jZCyQmJjMDGJjUmsdCROtZ0n/P/Z8v4Fs2MTUUf7vYoAAAAASUVORK5CYII=' ;
[2]	1229
[284]	1230	//==========================================================
	1231	// endconstrain.png
	1232	//==========================================================
	1233	$this->iBuiltinIcon[2][0]= 666 ;
	1234	$this->iBuiltinIcon[2][1]=
	1235	'iVBORw0KGgoAAAANSUhEUgAAABYAAAAWCAYAAADEtGw7AAAABGdBTUEAALGPC/xhBQAAAAZiS0dEAP8A/wD/oL2nkwAAAAlwSFlz'.
	1236	'AAALDwAACw8BkvkDpQAAAAd0SU1FB9ALEREILkh0+eQAAAIXSURBVHictZU9aFNRFMd/N81HX77aptJUWmp1LHRpIcWhg5sIDlUQ'.
	1237	'LAXB4t7RRUpwEhy7iQ46CCIoSHcl0CFaoVARU2MFMYktadLXJNok7x2HtCExvuYFmnO4w/3gx+Gc/z1HKRTdMEdXqHbB/sgc/sic'.
	1238	'nDoYAI8XwDa8o1RMLT+2hAsigtTvbIGVqhX46szUifBGswUeCPgAGB7QeLk0X4Ork+HOxo1VgSqGASjMqkn8W4r4vVtEgI/RRQEL'.
	1239	'vaoGD85cl5V3nySR/S1mxWxab7f35PnntNyMJeRr9kCMqiHTy09EoeToLwggx6ymiMOD/VwcD7Oa/MHkcIiQx026WGYto5P/U+ZZ'.
	1240	'7gD0QwDuT5z9N3LrVPi0Xs543eQPKkRzaS54eviJIp4tMFQFMllAWN2qcRZHBnixNM8NYD162xq8u7ePSQ+GX2Pjwxc2dB2cLtB8'.
	1241	'7GgamCb0anBYBeChMtl8855CarclxU1gvViiUK4w2OMkNDnGeJ8bt9fH90yOnOkCwLFTwhzykhvtYzOWoBBbY//R3dbaNTYhf2RO'.
	1242	'QpeuUMzv188MlwuHy0H13HnE48UzMcL0WAtUHX8OxZHoG1URiFw7rnLLCswuSPD1ulze/iWjT2PSf+dBXRFtVVGIvzqph0pQL7VE'.
	1243	'avXYaXXxPwsnt0imdttCocMmZBdK7YU9D8wuNOW0nXc6QWzPsSa5naZ1beb9BbGB6dxGtMnXAAAAAElFTkSuQmCC' ;
[2]	1244
[284]	1245	//==========================================================
	1246	// mail.png
	1247	//==========================================================
	1248	$this->iBuiltinIcon[3][0]= 1122 ;
	1249	$this->iBuiltinIcon[3][1]=
	1250	'iVBORw0KGgoAAAANSUhEUgAAABYAAAAWCAYAAADEtGw7AAAABGdBTUEAALGPC/xhBQAAAAZiS0dEAP8A/wD/oL2nkwAAAAlwSFlz'.
	1251	'AAALEAAACxABrSO9dQAAAAd0SU1FB9AJHAMfFvL9OU8AAAPfSURBVHictZRdaBRXFMd/987H7tbNx8aYtGCrEexDsOBDaKHFxirb'.
	1252	'h0qhsiY0ykppKq1osI99C4H2WSiFFMHWUhXBrjRi0uCmtSEUGgP1QWqhWjGkoW7M1kTX3WRn5p4+TJJNGolQ6IXDnDtz+N0z/3PP'.
	1253	'UWBIpdpYa23b9g09PZ2kUrOrvmUyGVKp1Ao/mUyi56YnVgWfO/P1CihAd/dJMpmaNROIRq8BkM1m0bH6TasC3j6QXgFdXI+DR6PR'.
	1254	'JX/Pno8B+KLnMKqlpUU8z8MYs2RBEDzWf9J+0RcRbMdxGBsbw/fmCXwPMUEYID4iAVp8wIRmDIHMo4yHSIBSASKC+CWE0C/PF9jU'.
	1255	'3B6Cp+4M07C5FUtKGNvGwQJctPgIsgD2wRhEIqAMGB+UQYkHJgYYZD7P1HwVlmWhHcfhyk83KeRGUW4t6CgoG5SNUS4KBWgQDUov'.
	1256	'7AGlwYASBVqH0Bk49dXpCviVV3dw/tI1Bvr7kMIIlh0NYUpjlF0BAYvcxSXmEVLKceHSCJm+PnbueBHbtkNwTXUNBzo6aGpq4sSZ'.
	1257	'GwT5H7BsF6Wdf1GWHQAoM0upeI9PT1yioS7B7tdaSdSuw7KsUGMAy7HYsmUztTW1nMwM0txssX1rlHjjS5jy/Uq2YkK/eJuLl6/z'.
	1258	'x+1xkslW6mrixGIODx8EFSlEBC0+tmXT0NhA2763iEUjnLv4C8XpUbSbAB1mKkGJ3J83Od77HW5EszvZSqK2iljMIeJaRGNuJePF'.
	1259	'6mspY7BJ1DXwQnCd2fxGRq5OUCz8xt72dyhMZcn++Cu3xu9SKhdp2b4ZHWnAtTSxmIWlhcIjlksR3lNBYzlxZsb7+f7ne+xtSzOd'.
	1260	'u83szH1OnThOPp/n+a0beeP1l4mvq+PU2Qyd+5PY1RuwlAqLYFaBfbTbyPSdfgaH77A//QF4f1O/vpr6RJyq+C5Kc/M8FbFxXItY'.
	1261	'xOHDrvfo/fxLDnbsJBp5BowBReVWYAzabeTh5ABDw7cWoNNL3YYYNtSv57lnn6Z+Qx01VeuIuBa2DV1HD3H63BAPZu4u1WGpeLHq'.
	1262	'Rh7+NcjA0O+0p4+CNwXigwnbWlQQdpuEpli+n+PIkcOc//YKuckJJFh2K2anrjFw+QZt6S6kPImIF/b+cqAJD1LihWAxC61twBTo'.
	1263	'fPcQF/oGsVW5ovHQlavs2/8+uYnRVSOUgHAmmAClBIOBwKC0gPjhIRgEIX2wg7NnwpZW3d3d4vs+vu8TBMGK51rvPM9b8hdteZxd'.
	1264	'LBbVR8feJDs0Rlv6GFKeXJ21rNRXESxMPR+CBUl0nN7PjtO+dye7Up/8v1I88bf/ixT/AO1/hZsqW+C6AAAAAElFTkSuQmCC' ;
[2]	1265
[284]	1266	//==========================================================
	1267	// startconstrain.png
	1268	//==========================================================
	1269	$this->iBuiltinIcon[4][0]= 725 ;
	1270	$this->iBuiltinIcon[4][1]=
	1271	'iVBORw0KGgoAAAANSUhEUgAAABYAAAAWCAYAAADEtGw7AAAABGdBTUEAALGPC/xhBQAAAAZiS0dEAP8A/wD/oL2nkwAAAAlwSFlz'.
	1272	'AAALDgAACw4BQL7hQQAAAAd0SU1FB9ALEREICJp5fBkAAAJSSURBVHic3dS9a1NRGMfx77kxtS+xqS9FG6p1ER3qVJpBQUUc3CRU'.
	1273	'BwURVLB1EAuKIP0THJQiiNRJBK3iJl18AyeltRZa0bbaJMbUNmlNSm5e7s25j0NqpSSmyag/OMM9POdzDuflwn8djz8gClVRrVEV'.
	1274	'ur4Bl1FTNSzLrSS6vbml0jUUwSXj8Qfk3PkLtLW2AeBIybmrgz3+gFzpucjlE4f4btuFTuWuCF5XDr3a3UPf6cM8GQvxzbsRAJdh'.
	1275	'ScfxSywml5j7mVypN0eGEJ0tebIre+zxB6Tv7jPReS2hREpOvpmUXU+H5eC913JnNCSRVE60pUVbWoZjprR39Yq70bdqj4pW7PEH'.
	1276	'5FpvL9e79jOTTHM7ssDL6CJZ08LbvAGnrpZg2mI2Z/MlZfN8IkxuSwu4V9+WIrj7zFlOHfXzKrLIi2SGh5ECKjnNVNxkQEc55vOw'.
	1277	'rb6O8JLFdHyJ+ayFElUeHvjwkfteL/V7fKTSkFvIQE4DoLI2Mz/muTkTApcBKIwaN8pwIUrKw+ajWwDknAO0d/r4zFaMuRS63sWm'.
	1278	'RoOdm+vRIriUYjKexrQV+t1o0YEVwfZSVJmD/dIABJuO0LG3lRFx0GOfiAELE9OgCrfU0XnIp5FwGLEy5WEAOxlR5uN+ARhP7GN3'.
	1279	'5w7Gv4bQI2+xpt4jjv2nWBmIlcExE2vDAHYioszBZXw6CPE4ADoWVHmd/tuwlZR9eXYyoszBfpiNQqaAOU5+TXRN+DeeenADPT9b'.
	1280	'EVgKVsutKPl0TGWGhwofoquaoKK4apsq/tH/e/kFwBMXLgAEKK4AAAAASUVORK5CYII=' ;
[2]	1281
[284]	1282	//==========================================================
	1283	// calc.png
	1284	//==========================================================
	1285	$this->iBuiltinIcon[5][0]= 589 ;
	1286	$this->iBuiltinIcon[5][1]=
	1287	'iVBORw0KGgoAAAANSUhEUgAAABYAAAAWCAYAAADEtGw7AAAABGdBTUEAALGPC/xhBQAAAAZiS0dEAA4AIwBbgMF12wAAAAlwSFlz'.
	1288	'AAALEQAACxEBf2RfkQAAAAd0SU1FB9AHBxQeFsqn0wQAAAHKSURBVHicnZWff+RAGIef3U/gcOEgUAgUCgcLhYXCwsHBQeGgUDgs'.
	1289	'FgMHB4VA/4Bg4XChWFgIFIqBwkJhsRAYeOGF+TQHmWSTTbKd9pU37/x45jvfTDITXEynAbdWKVQB0NazcVm0alcL4rJaRVzm+w/e'.
	1290	'3iwAkzbYRcnnYgI04GCvsxxSPabYaEdt2Ra6D0atcvvvDmyrMWBX1zPq2ircP/Tk98DiJtjV/fim6ziOCL6dDHZNhxQ3arIMsox4'.
	1291	'vejleL2Ay9+jaw6A+4OSICG2cacGKhsGxg+CxeqAQS0Y7BYJvowq7iGMOhXHEfzpvpQkA9bLKgOgWKt+4Lo1mM9hs9m17QNsJ70P'.
	1292	'Fjc/O52joogoX8MZKiBiAFxd9Z1vcj9wfSpUlDRNMcYQxzFpmnJ0FPH8nDe1MQaWSz9woQpWSZKEojDkeaWoKAyr1tlu+s48wfVx'.
	1293	'u7n5i7jthmGIiEGcT+36PP+gFeJrxWLhb0UA/lb4ggGs1T0rZs0zwM/ZjNfilcIY5tutPxgOW3F6dUX464LrKILLiw+A7WErrl+2'.
	1294	'rABG1EL/BilZP8DjU2uR4U+2E49P1Z8QJmNXUzl24A9GBT0IruCfi86d9x+D12RGzt+pNAAAAABJRU5ErkJggg==' ;
[2]	1295
[284]	1296	//==========================================================
	1297	// mag.png
	1298	//==========================================================
	1299	$this->iBuiltinIcon[6][0]= 1415 ;
	1300	$this->iBuiltinIcon[6][1]=
	1301	'iVBORw0KGgoAAAANSUhEUgAAABYAAAAWCAYAAADEtGw7AAAABGdBTUEAALGPC/xhBQAAAAZiS0dEAP8A/wD/oL2nkwAAAAlwSFlz'.
	1302	'AAALDAAACwwBP0AiyAAAAAd0SU1FB9ALDxEWDY6Ul+UAAAUESURBVHicdZVrbFRFGIafsyyF0nalV1R6WiggaAptlzsr1OgEogmC'.
	1303	'0IgoBAsBgkIrBAPEhBj/AP6xRTCUFEwRI4jcgsitXMrFCJptJWvBNpXYbbXtbtttt6e7e86ec/yxadlCfZPJZDIz73zzzjfvR2VL'.
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[2]	1320
[284]	1321	//==========================================================
	1322	// lock.png
	1323	//==========================================================
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	1325	$this->iBuiltinIcon[7][1]=
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[2]	1339
[284]	1340	//==========================================================
	1341	// stop.png
	1342	//==========================================================
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[2]	1357
[284]	1358	//==========================================================
	1359	// error.png
	1360	//==========================================================
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	1370	'iOsCHgAAAABJRU5ErkJggg==' ;
[2]	1371
[284]	1372	//==========================================================
	1373	// openfolder.png
	1374	//==========================================================
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[2]	1405
[284]	1406	//==========================================================
	1407	// folder.png
	1408	//==========================================================
[2]	1409	$this->iBuiltinIcon[11][0]= 1824 ;
[284]	1410	$this->iBuiltinIcon[11][1]=
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	1428	'w7XWjWS3IdsdOAUBWZAxrRJnTQ6SG5bce2FCpmkughmGQSqVYm5uDtnj44sH38TtdhP6+Dwf//V4ttHXrkGURZJaic8RgHQ6jWma'.
	1429	'SJKUL5RLKNfIOczDKF3XSSaTRCIRhLJWntp3nGfWrSMxc5OLf3iNP4+68T9Ub9nF76lTpxgfHycajZJKpdA0LZ9GbjYV7hcDWZaF'.
	1430	'pmnMz88Ti8UYunSLmu1HFi2aVkxkaGjINTY2ttDb24vX6+XQoUNs3ryZ8vJyIDu1BUFYkkxhgxeiWlpaOHPmDE1NTdTX1xe98eWG'.
	1431	'JnF/9dQZCoXUYDA4AOD1ejlw4ACtra2Ul5fniwmCkEcUJiUIAoFAgL6+Pnw+H21tbfT39z8SxCS7hHsfWH9/8dL4MKqnp4eWlhac'.
	1432	'TmcekEvMNE2am5s5ceIEgUCA9vZ2Tp48ic/nY3j4UsmQHCYOjJHtpeBKqL1799Lc3IzT6UTXdRobGxkYGKC9vZ3W1tZ8Ko86NJ8a'.
	1433	'tXHjRo4dO8bp06fZsmULGzZsoL+/n0AggNfr5ezZs/8VpGTU5OSkc//+/acBfD4f1dXV7Nq1i4aGBs6dO4fP5+Pq1SuPBbIiyjTN'.
	1434	'RUnV1dUNXLhwAa/Xy44dO4jFYgBEo9FFF1r134BPuYlk16LrAYXsAlmtq6sbKDwoFAp9m+ykuP5ZQVZF3f8tCdwCov8LyHIoAANI'.
	1435	'AXf/A1TI0XCDh7OWAAAAAElFTkSuQmCC' ;
[2]	1436
[284]	1437	//==========================================================
	1438	// file_important.png
	1439	//==========================================================
	1440	$this->iBuiltinIcon[12][0]= 1785 ;
	1441	$this->iBuiltinIcon[12][1]=
	1442	'iVBORw0KGgoAAAANSUhEUgAAACIAAAAiCAYAAAA6RwvCAAAABGdBTUEAALGPC/xhBQAAAAZiS0dEAAAAAAAA+UO7fwAAAAlwSFlz'.
	1443	'AAALDwAACw8BkvkDpQAAAAd0SU1FB9ECDAcjDeD3lKsAAAZ2SURBVHicrZhPaFzHHcc/897s7lutJCsr2VHsOHWMk0MPbsBUrcnF'.
	1444	'OFRdSo6FNhdB6SGHlpDmYtJCDyoxyKe6EBxKQkt7KKL0T6ABo0NbciqigtC6PhWKI2NFqqxdSd7V2/dmftPDvPd212t55dCBYfbN'.
	1445	'zpvfZ77z+/1mdhUjytWrV93Hf/24eD5z9gwiMlDjOKbb7dLtdhER2u02u7u73Lp1CxEZBw4AeZwdNQqkMd9wbziFGINJUt6rRbz5'.
	1446	'1ptUq1XK5TJBEAAUMHt7e+zu7gKwvLzMysoKwAng/uNg9CgQgFKlgg1DUJ67Vqtx6tQpZmdniaIIpRTOOZRSdDoddnZ2aLfbLC8v'.
	1447	's7S0xJUrV7ZGwQSj1PhhfRodVdDlMrpc5vup5Z2fvMPdu3fZ29vDWjvwztjYGPV6nVqtRqVS4dKlSywtLQFsAdOH2XwsCEApg3jl'.
	1448	'w98Rak2gvYjNZpNms0mSJDjnHgkDMDc3dySYQ0Ea8w139YUX0OUKulzyg7UmCEO+l1huvHuDra0t9vf3h1TJYSqVypFhHquIrlQI'.
	1449	'S5qv/uIDAC7/4bcEQYAKvK+0Wq1DVQGIoog7d+4cCeaRII35hrt+8SsEOkRlUaEyR0UpFIrXHxyMVKVUKnHv3r0jwRwaNelBjBjL'.
	1450	'Sz/7KYuLiwAsLi7y4z/9kY9e+TpkCuSqjI+Po7XuAWeKXLt2DWNMUZMkwRjDhQsXWFtbK6JpCCT3jfQgxomPtPX19YHWicM5x3c2'.
	1451	'73Pj3Ru8/aO3mZqaolKpoHVvyuvXr/Ppnf/Q7uzz380NPtu4y/qnG+ztd1hfX2dtbQ3gIvDnRyqSxl1UoPjyz98D4PTp0wPtq39Z'.
	1452	'4fdzLxegrVaLVqvF5OQkYRgWqpRKJZ77wvNsbW1RG5tgfKLOTH2G7Z1twqBQrgrMDvhInjfSOCY5iIv+hYWFgRZArEWsZWF941Bf'.
	1453	'SdMUgMnJCWpjVU4cn+HUyePM1Gc4+fRUPkzBI5w1jbukcczLv/5l0XfmzJmBFuCba38r/CRXpT+CrDUoZ0jjB4RYonJAOYRobJKT'.
	1454	'z5zgqfqxAbsFSH6mpHFM2qdGXh4VnoViD6mSJF2cTQeqDqBaKVHWmonJCWpZjhkC6anR5WsffTgwaHV1FaUUq6urA/2v3f5k4LnV'.
	1455	'arG9tUn3oI2YBCcWHYAxMVYs1qZEZY2SFB2aYZDGfMN9d7uJiWPSeFiNo5Rclc3NTXZbO6RpF7EJVixYA9agwwDnUiqlEPdQ3imi'.
	1456	'Jo27BGHIt/7x9yEjc3Nzh27Na7c/4TdffKl4bja3ae5MUIu0T/HOEIaOpJt4gwoSsVTK4SBIY77hFtY3ABBjBiZ90rKwvsH77/+K'.
	1457	't37wOhO1iPpTk4SBw1mLsz6CnKQ4l3qV+kE+t9XHlNZOk+bUJLVIE1VCcIJWQmJ6qjj30NbcXLkZMt8YPig+Z3n1G5fZ39/j/vY2'.
	1458	'9ckqZT2Ochbn0p4qNkU/dDfUADdXbh4HXgRO4zNdEU0XL1784PLly5w9e7Z4SazFOfGrEotDcOKrcoJPmrYIXf/Zop3QNd1skuGt'.
	1459	'cUAb2MgAxvHZTgFUq1Wmp6eZnZ0F8JlTjDduDThBnDeECEoJtbGIp6enqEblzCcEZ1PECU4yVRiOGgd0gc+AB0CZvkv1sWPHOHfu'.
	1460	'HOfPn8da41cpkkltEBEPJhYnBkTQJcdYVKGkgRxCfBsq5xXNgAa2Bn+hjTOgHEKBP8pzRUxykIH4ifLJRTJAl+UMBJzPHQ6bfe/f'.
	1461	'cWIzPxlUpD+zugzIZtVk1d8znBAqRxgoQuVQgSJQ3h9C5QhDRYgjUILCAzlnEdsHYTKfMTEBcP7F54YUGVmc2GLlIn6ve6v0ahSt'.
	1462	'8X25TzjJ+rIx1grKpQPWR4LkGVVsMgghvS0qjPdvm5OeceOTWA5Evo2mFzkjQfL7hZPUy5yvvF/uPFQL3+nbDmsLCEmT3sTmCTNr'.
	1463	'rogT6yFsOix3ftw7OwQhkvSU6CuinhCk0+kAkFoBazEEICHaHHiPVmU0gnUp4EAc1mYrF0EBVpwPi34VrBkwPxKk3W5ju/e5/c+d'.
	1464	'bGUHIAIuydTIE5zfc5Wr4lJcahHnHTP3CVGm78DrgY38N+DEibp7dmYKdAQmBh1hjEFjis+9CTWYGK21H6PxPyOI0DobYwzZF/z7'.
	1465	'7jadTvJtYG0kCD7lfwl49ijgT1gc0AH+dZSJA/xB+Mz/GSIvFoj/B7H1mAd8CO/zAAAAAElFTkSuQmCC' ;
[2]	1466
[284]	1467	$this->iLen = count($this->iBuiltinIcon);
[2]	1468	}
	1469	}
	1470
	1471	//===================================================
	1472	// Global cache for builtin images
	1473	//===================================================
	1474	$_gPredefIcons = new PredefIcons();
	1475
	1476	//===================================================
	1477	// CLASS IconImage
[284]	1478	// Description: Holds properties for an icon image
[2]	1479	//===================================================
	1480	class IconImage {
	1481	private $iGDImage=null;
	1482	private $iWidth,$iHeight;
	1483	private $ixalign='left',$iyalign='center';
	1484	private $iScale=1.0;
	1485
[284]	1486	function __construct($aIcon,$aScale=1) {
	1487	GLOBAL $_gPredefIcons ;
	1488	if( is_string($aIcon) ) {
	1489	$this->iGDImage = Graph::LoadBkgImage('',$aIcon);
	1490	}
	1491	elseif( is_integer($aIcon) ) {
	1492	// Builtin image
	1493	$this->iGDImage = $_gPredefIcons->GetImg($aIcon);
	1494	}
	1495	else {
	1496	JpGraphError::RaiseL(6011);
	1497	//('Argument to IconImage must be string or integer');
	1498	}
	1499	$this->iScale = $aScale;
	1500	$this->iWidth = Image::GetWidth($this->iGDImage);
	1501	$this->iHeight = Image::GetHeight($this->iGDImage);
[2]	1502	}
	1503
	1504	function GetWidth() {
[284]	1505	return round($this->iScale*$this->iWidth);
[2]	1506	}
	1507
	1508	function GetHeight() {
[284]	1509	return round($this->iScale*$this->iHeight);
[2]	1510	}
	1511
	1512	function SetAlign($aX='left',$aY='center') {
[284]	1513	$this->ixalign = $aX;
	1514	$this->iyalign = $aY;
[2]	1515	}
	1516
	1517	function Stroke($aImg,$x,$y) {
	1518
[284]	1519	if( $this->ixalign == 'right' ) {
	1520	$x -= $this->iWidth;
	1521	}
	1522	elseif( $this->ixalign == 'center' ) {
	1523	$x -= round($this->iWidth/2*$this->iScale);
	1524	}
[2]	1525
[284]	1526	if( $this->iyalign == 'bottom' ) {
	1527	$y -= $this->iHeight;
	1528	}
	1529	elseif( $this->iyalign == 'center' ) {
	1530	$y -= round($this->iHeight/2*$this->iScale);
	1531	}
[2]	1532
[284]	1533	$aImg->Copy($this->iGDImage,
	1534	$x,$y,0,0,
	1535	round($this->iWidth$this->iScale),round($this->iHeight$this->iScale),
	1536	$this->iWidth,$this->iHeight);
[2]	1537	}
	1538	}
	1539
	1540
	1541	//===================================================
	1542	// CLASS TextProperty
	1543	// Description: Holds properties for a text
	1544	//===================================================
	1545	class TextProperty {
	1546	public $iShow=true;
	1547	public $csimtarget='',$csimwintarget='',$csimalt='';
	1548	private $iFFamily=FF_FONT1,$iFStyle=FS_NORMAL,$iFSize=10;
[284]	1549	private $iFontArray=array();
[2]	1550	private $iColor="black";
	1551	private $iText="";
	1552	private $iHAlign="left",$iVAlign="bottom";
[284]	1553
	1554	//---------------
	1555	// CONSTRUCTOR
	1556	function __construct($aTxt='') {
	1557	$this->iText = $aTxt;
	1558	}
	1559
	1560	//---------------
	1561	// PUBLIC METHODS
[2]	1562	function Set($aTxt) {
[284]	1563	$this->iText = $aTxt;
[2]	1564	}
	1565
	1566	function SetCSIMTarget($aTarget,$aAltText='',$aWinTarget='') {
[284]	1567	if( is_string($aTarget) )
	1568	$aTarget = array($aTarget);
	1569	$this->csimtarget=$aTarget;
[2]	1570
[284]	1571	if( is_string($aWinTarget) )
	1572	$aWinTarget = array($aWinTarget);
	1573	$this->csimwintarget=$aWinTarget;
[2]	1574
[284]	1575	if( is_string($aAltText) )
	1576	$aAltText = array($aAltText);
[2]	1577	$this->csimalt=$aAltText;
[284]	1578
[2]	1579	}
[284]	1580
[2]	1581	function SetCSIMAlt($aAltText) {
[284]	1582	if( is_string($aAltText) )
	1583	$aAltText = array($aAltText);
[2]	1584	$this->csimalt=$aAltText;
	1585	}
	1586
	1587	// Set text color
	1588	function SetColor($aColor) {
[284]	1589	$this->iColor = $aColor;
[2]	1590	}
[284]	1591
[2]	1592	function HasTabs() {
[284]	1593	if( is_string($this->iText) ) {
	1594	return substr_count($this->iText,"\t") > 0;
	1595	}
	1596	elseif( is_array($this->iText) ) {
	1597	return false;
	1598	}
[2]	1599	}
[284]	1600
[2]	1601	// Get number of tabs in string
	1602	function GetNbrTabs() {
[284]	1603	if( is_string($this->iText) ) {
	1604	return substr_count($this->iText,"\t") ;
	1605	}
	1606	else{
	1607	return 0;
	1608	}
[2]	1609	}
[284]	1610
[2]	1611	// Set alignment
	1612	function Align($aHAlign,$aVAlign="bottom") {
[284]	1613	$this->iHAlign=$aHAlign;
	1614	$this->iVAlign=$aVAlign;
[2]	1615	}
[284]	1616
[2]	1617	// Synonym
	1618	function SetAlign($aHAlign,$aVAlign="bottom") {
[284]	1619	$this->iHAlign=$aHAlign;
	1620	$this->iVAlign=$aVAlign;
[2]	1621	}
[284]	1622
[2]	1623	// Specify font
	1624	function SetFont($aFFamily,$aFStyle=FS_NORMAL,$aFSize=10) {
[284]	1625	$this->iFFamily = $aFFamily;
	1626	$this->iFStyle = $aFStyle;
	1627	$this->iFSize = $aFSize;
[2]	1628	}
	1629
[284]	1630	function SetColumnFonts($aFontArray) {
	1631	if( !is_array($aFontArray) \|\| count($aFontArray[0]) != 3 ) {
	1632	JpGraphError::RaiseL(6033);
	1633	// 'Array of fonts must contain arrays with 3 elements, i.e. (Family, Style, Size)'
	1634	}
	1635	$this->iFontArray = $aFontArray;
	1636	}
	1637
	1638
[2]	1639	function IsColumns() {
[284]	1640	return is_array($this->iText) ;
[2]	1641	}
[284]	1642
[2]	1643	// Get width of text. If text contains several columns separated by
[284]	1644	// tabs then return both the total width as well as an array with a
[2]	1645	// width for each column.
	1646	function GetWidth($aImg,$aUseTabs=false,$aTabExtraMargin=1.1) {
[284]	1647	$extra_margin=4;
	1648	$aImg->SetFont($this->iFFamily,$this->iFStyle,$this->iFSize);
	1649	if( is_string($this->iText) ) {
	1650	if( strlen($this->iText) == 0 ) return 0;
	1651	$tmp = preg_split('/\t/',$this->iText);
	1652	if( count($tmp) <= 1 \|\| !$aUseTabs ) {
	1653	$w = $aImg->GetTextWidth($this->iText);
	1654	return $w + 2*$extra_margin;
	1655	}
	1656	else {
	1657	$tot=0;
	1658	$n = count($tmp);
	1659	for($i=0; $i < $n; ++$i) {
	1660	$res[$i] = $aImg->GetTextWidth($tmp[$i]);
	1661	$tot += $res[$i]*$aTabExtraMargin;
	1662	}
	1663	return array(round($tot),$res);
	1664	}
	1665	}
	1666	elseif( is_object($this->iText) ) {
	1667	// A single icon
	1668	return $this->iText->GetWidth()+2*$extra_margin;
	1669	}
	1670	elseif( is_array($this->iText) ) {
	1671	// Must be an array of texts. In this case we return the sum of the
	1672	// length + a fixed margin of 4 pixels on each text string
	1673	$n = count($this->iText);
	1674	$nf = count($this->iFontArray);
	1675	for( $i=0, $w=0; $i < $n; ++$i ) {
	1676	if( $i < $nf ) {
	1677	$aImg->SetFont($this->iFontArray[$i][0],$this->iFontArray[$i][1],$this->iFontArray[$i][2]);
	1678	}
	1679	else {
	1680	$aImg->SetFont($this->iFFamily,$this->iFStyle,$this->iFSize);
	1681	}
	1682	$tmp = $this->iText[$i];
	1683	if( is_string($tmp) ) {
	1684	$w += $aImg->GetTextWidth($tmp)+$extra_margin;
	1685	}
	1686	else {
	1687	if( is_object($tmp) === false ) {
	1688	JpGraphError::RaiseL(6012);
	1689	}
	1690	$w += $tmp->GetWidth()+$extra_margin;
	1691	}
	1692	}
	1693	return $w;
	1694	}
	1695	else {
	1696	JpGraphError::RaiseL(6012);
	1697	}
[2]	1698	}
	1699
	1700	// for the case where we have multiple columns this function returns the width of each
	1701	// column individually. If there is no columns just return the width of the single
	1702	// column as an array of one
	1703	function GetColWidth($aImg,$aMargin=0) {
[284]	1704	$aImg->SetFont($this->iFFamily,$this->iFStyle,$this->iFSize);
	1705	if( is_array($this->iText) ) {
	1706	$n = count($this->iText);
	1707	$nf = count($this->iFontArray);
	1708	for( $i=0, $w=array(); $i < $n; ++$i ) {
	1709	$tmp = $this->iText[$i];
	1710	if( is_string($tmp) ) {
	1711	if( $i < $nf ) {
	1712	$aImg->SetFont($this->iFontArray[$i][0],$this->iFontArray[$i][1],$this->iFontArray[$i][2]);
	1713	}
	1714	else {
	1715	$aImg->SetFont($this->iFFamily,$this->iFStyle,$this->iFSize);
	1716	}
	1717	$w[$i] = $aImg->GetTextWidth($tmp)+$aMargin;
	1718	}
	1719	else {
	1720	if( is_object($tmp) === false ) {
	1721	JpGraphError::RaiseL(6012);
	1722	}
	1723	$w[$i] = $tmp->GetWidth()+$aMargin;
	1724	}
	1725	}
	1726	return $w;
	1727	}
	1728	else {
	1729	return array($this->GetWidth($aImg));
	1730	}
[2]	1731	}
[284]	1732
[2]	1733	// Get total height of text
	1734	function GetHeight($aImg) {
[284]	1735	$nf = count($this->iFontArray);
	1736	$maxheight = -1;
	1737
	1738	if( $nf > 0 ) {
	1739	// We have to find out the largest font and take that one as the
	1740	// height of the row
	1741	for($i=0; $i < $nf; ++$i ) {
	1742	$aImg->SetFont($this->iFontArray[$i][0],$this->iFontArray[$i][1],$this->iFontArray[$i][2]);
	1743	$height = $aImg->GetFontHeight();
	1744	$maxheight = max($height,$maxheight);
	1745	}
	1746	}
	1747
	1748	$aImg->SetFont($this->iFFamily,$this->iFStyle,$this->iFSize);
	1749	$height = $aImg->GetFontHeight();
	1750	$maxheight = max($height,$maxheight);
	1751	return $maxheight;
[2]	1752	}
[284]	1753
	1754	// Unhide/hide the text
[2]	1755	function Show($aShow=true) {
[284]	1756	$this->iShow=$aShow;
[2]	1757	}
[284]	1758
[2]	1759	// Stroke text at (x,y) coordinates. If the text contains tabs then the
	1760	// x parameter should be an array of positions to be used for each successive
	1761	// tab mark. If no array is supplied then the tabs will be ignored.
	1762	function Stroke($aImg,$aX,$aY) {
[284]	1763	if( $this->iShow ) {
	1764	$aImg->SetColor($this->iColor);
	1765	$aImg->SetFont($this->iFFamily,$this->iFStyle,$this->iFSize);
	1766	$aImg->SetTextAlign($this->iHAlign,$this->iVAlign);
	1767	if( $this->GetNbrTabs() < 1 ) {
	1768	if( is_string($this->iText) ) {
	1769	if( is_array($aX) ) $aX=$aX[0];
	1770	if( is_array($aY) ) $aY=$aY[0];
	1771	$aImg->StrokeText($aX,$aY,$this->iText);
	1772	}
	1773	elseif( is_array($this->iText) && ($n = count($this->iText)) > 0 ) {
	1774	$ax = is_array($aX) ;
	1775	$ay = is_array($aY) ;
	1776	if( $ax && $ay ) {
	1777	// Nothing; both are already arrays
	1778	}
	1779	elseif( $ax ) {
	1780	$aY = array_fill(0,$n,$aY);
	1781	}
	1782	elseif( $ay ) {
	1783	$aX = array_fill(0,$n,$aX);
	1784	}
	1785	else {
	1786	$aX = array_fill(0,$n,$aX);
	1787	$aY = array_fill(0,$n,$aY);
	1788	}
	1789	$n = min($n, count($aX) ) ;
	1790	$n = min($n, count($aY) ) ;
	1791	for($i=0; $i < $n; ++$i ) {
	1792	$tmp = $this->iText[$i];
	1793	if( is_object($tmp) ) {
	1794	$tmp->Stroke($aImg,$aX[$i],$aY[$i]);
	1795	}
	1796	else {
	1797	if( $i < count($this->iFontArray) ) {
	1798	$font = $this->iFontArray[$i];
	1799	$aImg->SetFont($font[0],$font[1],$font[2]);
	1800	}
	1801	else {
	1802	$aImg->SetFont($this->iFFamily,$this->iFStyle,$this->iFSize);
	1803	}
	1804	$aImg->StrokeText($aX[$i],$aY[$i],str_replace("\t"," ",$tmp));
	1805	}
	1806	}
	1807	}
	1808	}
	1809	else {
	1810	$tmp = preg_split('/\t/',$this->iText);
	1811	$n = min(count($tmp),count($aX));
	1812	for($i=0; $i < $n; ++$i) {
	1813	if( $i < count($this->iFontArray) ) {
	1814	$font = $this->iFontArray[$i];
	1815	$aImg->SetFont($font[0],$font[1],$font[2]);
	1816	}
	1817	else {
	1818	$aImg->SetFont($this->iFFamily,$this->iFStyle,$this->iFSize);
	1819	}
	1820	$aImg->StrokeText($aX[$i],$aY,$tmp[$i]);
	1821	}
	1822	}
	1823	}
[2]	1824	}
	1825	}
	1826
	1827	//===================================================
	1828	// CLASS HeaderProperty
[284]	1829	// Description: Data encapsulating class to hold property
[2]	1830	// for each type of the scale headers
	1831	//===================================================
	1832	class HeaderProperty {
	1833	public $grid;
	1834	public $iShowLabels=true,$iShowGrid=true;
	1835	public $iTitleVertMargin=3,$iFFamily=FF_FONT0,$iFStyle=FS_NORMAL,$iFSize=8;
	1836	public $iStyle=0;
	1837	public $iFrameColor="black",$iFrameWeight=1;
	1838	public $iBackgroundColor="white";
	1839	public $iWeekendBackgroundColor="lightgray",$iSundayTextColor="red"; // these are only used with day scale
	1840	public $iTextColor="black";
	1841	public $iLabelFormStr="%d";
	1842	public $iIntervall = 1;
	1843
[284]	1844	//---------------
	1845	// CONSTRUCTOR
	1846	function __construct() {
	1847	$this->grid = new LineProperty();
[2]	1848	}
	1849
[284]	1850	//---------------
	1851	// PUBLIC METHODS
[2]	1852	function Show($aShow=true) {
[284]	1853	$this->iShowLabels = $aShow;
[2]	1854	}
	1855
	1856	function SetIntervall($aInt) {
[284]	1857	$this->iIntervall = $aInt;
[2]	1858	}
	1859
[284]	1860	function SetInterval($aInt) {
	1861	$this->iIntervall = $aInt;
	1862	}
	1863
[2]	1864	function GetIntervall() {
[284]	1865	return $this->iIntervall ;
[2]	1866	}
[284]	1867
[2]	1868	function SetFont($aFFamily,$aFStyle=FS_NORMAL,$aFSize=10) {
[284]	1869	$this->iFFamily = $aFFamily;
	1870	$this->iFStyle = $aFStyle;
	1871	$this->iFSize = $aFSize;
[2]	1872	}
	1873
	1874	function SetFontColor($aColor) {
[284]	1875	$this->iTextColor = $aColor;
[2]	1876	}
[284]	1877
[2]	1878	function GetFontHeight($aImg) {
[284]	1879	$aImg->SetFont($this->iFFamily,$this->iFStyle,$this->iFSize);
	1880	return $aImg->GetFontHeight();
[2]	1881	}
	1882
	1883	function GetFontWidth($aImg) {
[284]	1884	$aImg->SetFont($this->iFFamily,$this->iFStyle,$this->iFSize);
	1885	return $aImg->GetFontWidth();
[2]	1886	}
	1887
	1888	function GetStrWidth($aImg,$aStr) {
[284]	1889	$aImg->SetFont($this->iFFamily,$this->iFStyle,$this->iFSize);
	1890	return $aImg->GetTextWidth($aStr);
[2]	1891	}
[284]	1892
[2]	1893	function SetStyle($aStyle) {
[284]	1894	$this->iStyle = $aStyle;
[2]	1895	}
[284]	1896
[2]	1897	function SetBackgroundColor($aColor) {
[284]	1898	$this->iBackgroundColor=$aColor;
[2]	1899	}
	1900
	1901	function SetFrameWeight($aWeight) {
[284]	1902	$this->iFrameWeight=$aWeight;
[2]	1903	}
	1904
	1905	function SetFrameColor($aColor) {
[284]	1906	$this->iFrameColor=$aColor;
[2]	1907	}
[284]	1908
[2]	1909	// Only used by day scale
	1910	function SetWeekendColor($aColor) {
[284]	1911	$this->iWeekendBackgroundColor=$aColor;
[2]	1912	}
[284]	1913
[2]	1914	// Only used by day scale
	1915	function SetSundayFontColor($aColor) {
[284]	1916	$this->iSundayTextColor=$aColor;
[2]	1917	}
[284]	1918
[2]	1919	function SetTitleVertMargin($aMargin) {
[284]	1920	$this->iTitleVertMargin=$aMargin;
[2]	1921	}
[284]	1922
[2]	1923	function SetLabelFormatString($aStr) {
[284]	1924	$this->iLabelFormStr=$aStr;
[2]	1925	}
	1926
	1927	function SetFormatString($aStr) {
[284]	1928	$this->SetLabelFormatString($aStr);
[2]	1929	}
	1930
	1931
	1932	}
	1933
	1934	//===================================================
	1935	// CLASS GanttScale
	1936	// Description: Responsible for calculating and showing
	1937	// the scale in a gantt chart. This includes providing methods for
	1938	// converting dates to position in the chart as well as stroking the
	1939	// date headers (days, week, etc).
	1940	//===================================================
	1941	class GanttScale {
	1942	public $minute,$hour,$day,$week,$month,$year;
	1943	public $divider,$dividerh,$tableTitle;
	1944	public $iStartDate=-1,$iEndDate=-1;
	1945	// Number of gantt bar position (n.b not necessariliy the same as the number of bars)
	1946	// we could have on bar in position 1, and one bar in position 5 then there are two
	1947	// bars but the number of bar positions is 5
	1948	public $actinfo;
	1949	public $iTopPlotMargin=10,$iBottomPlotMargin=15;
[284]	1950	public $iVertLines=-1;
[2]	1951	public $iVertHeaderSize=-1;
	1952	// The width of the labels (defaults to the widest of all labels)
[284]	1953	private $iLabelWidth;
[2]	1954	// Out image to stroke the scale to
[284]	1955	private $iImg;
[2]	1956	private $iTableHeaderBackgroundColor="white",$iTableHeaderFrameColor="black";
	1957	private $iTableHeaderFrameWeight=1;
	1958	private $iAvailableHeight=-1,$iVertSpacing=-1;
	1959	private $iDateLocale;
	1960	private $iVertLayout=GANTT_EVEN;
	1961	private $iUsePlotWeekendBackground=true;
[284]	1962	private $iWeekStart = 1; // Default to have weekends start on Monday
[2]	1963
[284]	1964	//---------------
	1965	// CONSTRUCTOR
	1966	function __construct($aImg) {
	1967	$this->iImg = $aImg;
	1968	$this->iDateLocale = new DateLocale();
[2]	1969
[284]	1970	$this->minute = new HeaderProperty();
	1971	$this->minute->SetIntervall(15);
	1972	$this->minute->SetLabelFormatString('i');
	1973	$this->minute->SetFont(FF_FONT0);
	1974	$this->minute->grid->SetColor("gray");
[2]	1975
[284]	1976	$this->hour = new HeaderProperty();
	1977	$this->hour->SetFont(FF_FONT0);
	1978	$this->hour->SetIntervall(6);
	1979	$this->hour->SetStyle(HOURSTYLE_HM24);
	1980	$this->hour->SetLabelFormatString('H:i');
	1981	$this->hour->grid->SetColor("gray");
[2]	1982
[284]	1983	$this->day = new HeaderProperty();
	1984	$this->day->grid->SetColor("gray");
	1985	$this->day->SetLabelFormatString('l');
[2]	1986
[284]	1987	$this->week = new HeaderProperty();
	1988	$this->week->SetLabelFormatString("w%d");
	1989	$this->week->SetFont(FF_FONT1);
[2]	1990
[284]	1991	$this->month = new HeaderProperty();
	1992	$this->month->SetFont(FF_FONT1,FS_BOLD);
[2]	1993
[284]	1994	$this->year = new HeaderProperty();
	1995	$this->year->SetFont(FF_FONT1,FS_BOLD);
	1996
	1997	$this->divider=new LineProperty();
	1998	$this->dividerh=new LineProperty();
	1999	$this->dividerh->SetWeight(2);
	2000	$this->divider->SetWeight(6);
	2001	$this->divider->SetColor('gray');
	2002	$this->divider->SetStyle('fancy');
	2003
	2004	$this->tableTitle=new TextProperty();
	2005	$this->tableTitle->Show(false);
	2006	$this->actinfo = new GanttActivityInfo();
[2]	2007	}
[284]	2008
	2009	//---------------
	2010	// PUBLIC METHODS
[2]	2011	// Specify what headers should be visible
	2012	function ShowHeaders($aFlg) {
[284]	2013	$this->day->Show($aFlg & GANTT_HDAY);
	2014	$this->week->Show($aFlg & GANTT_HWEEK);
	2015	$this->month->Show($aFlg & GANTT_HMONTH);
	2016	$this->year->Show($aFlg & GANTT_HYEAR);
	2017	$this->hour->Show($aFlg & GANTT_HHOUR);
	2018	$this->minute->Show($aFlg & GANTT_HMIN);
[2]	2019
[284]	2020	// Make some default settings of gridlines whihc makes sense
	2021	if( $aFlg & GANTT_HWEEK ) {
	2022	$this->month->grid->Show(false);
	2023	$this->year->grid->Show(false);
	2024	}
	2025	if( $aFlg & GANTT_HHOUR ) {
	2026	$this->day->grid->SetColor("black");
	2027	}
[2]	2028	}
[284]	2029
[2]	2030	// Should the weekend background stretch all the way down in the plotarea
	2031	function UseWeekendBackground($aShow) {
[284]	2032	$this->iUsePlotWeekendBackground = $aShow;
[2]	2033	}
[284]	2034
[2]	2035	// Have a range been specified?
	2036	function IsRangeSet() {
[284]	2037	return $this->iStartDate!=-1 && $this->iEndDate!=-1;
[2]	2038	}
[284]	2039
[2]	2040	// Should the layout be from top or even?
	2041	function SetVertLayout($aLayout) {
[284]	2042	$this->iVertLayout = $aLayout;
[2]	2043	}
[284]	2044
[2]	2045	// Which locale should be used?
	2046	function SetDateLocale($aLocale) {
[284]	2047	$this->iDateLocale->Set($aLocale);
[2]	2048	}
[284]	2049
[2]	2050	// Number of days we are showing
	2051	function GetNumberOfDays() {
[284]	2052	return round(($this->iEndDate-$this->iStartDate)/SECPERDAY);
[2]	2053	}
[284]	2054
[2]	2055	// The width of the actual plot area
	2056	function GetPlotWidth() {
[284]	2057	$img=$this->iImg;
	2058	return $img->width - $img->left_margin - $img->right_margin;
[2]	2059	}
	2060
	2061	// Specify the width of the titles(labels) for the activities
	2062	// (This is by default set to the minimum width enought for the
	2063	// widest title)
	2064	function SetLabelWidth($aLabelWidth) {
[284]	2065	$this->iLabelWidth=$aLabelWidth;
[2]	2066	}
	2067
[284]	2068	// Which day should the week start?
	2069	// 0==Sun, 1==Monday, 2==Tuesday etc
[2]	2070	function SetWeekStart($aStartDay) {
[284]	2071	$this->iWeekStart = $aStartDay % 7;
	2072
	2073	//Recalculate the startday since this will change the week start
	2074	$this->SetRange($this->iStartDate,$this->iEndDate);
[2]	2075	}
	2076
	2077	// Do we show min scale?
	2078	function IsDisplayMinute() {
[284]	2079	return $this->minute->iShowLabels;
[2]	2080	}
	2081
	2082	// Do we show day scale?
	2083	function IsDisplayHour() {
[284]	2084	return $this->hour->iShowLabels;
[2]	2085	}
	2086
[284]	2087
[2]	2088	// Do we show day scale?
	2089	function IsDisplayDay() {
[284]	2090	return $this->day->iShowLabels;
[2]	2091	}
[284]	2092
[2]	2093	// Do we show week scale?
	2094	function IsDisplayWeek() {
[284]	2095	return $this->week->iShowLabels;
[2]	2096	}
[284]	2097
[2]	2098	// Do we show month scale?
	2099	function IsDisplayMonth() {
[284]	2100	return $this->month->iShowLabels;
[2]	2101	}
[284]	2102
[2]	2103	// Do we show year scale?
	2104	function IsDisplayYear() {
[284]	2105	return $this->year->iShowLabels;
[2]	2106	}
	2107
	2108	// Specify spacing (in percent of bar height) between activity bars
	2109	function SetVertSpacing($aSpacing) {
[284]	2110	$this->iVertSpacing = $aSpacing;
[2]	2111	}
	2112
	2113	// Specify scale min and max date either as timestamp or as date strings
	2114	// Always round to the nearest week boundary
	2115	function SetRange($aMin,$aMax) {
[284]	2116	$this->iStartDate = $this->NormalizeDate($aMin);
	2117	$this->iEndDate = $this->NormalizeDate($aMax);
[2]	2118	}
	2119
	2120
	2121	// Adjust the start and end date so they fit to beginning/ending
	2122	// of the week taking the specified week start day into account.
	2123	function AdjustStartEndDay() {
	2124
[284]	2125	if( !($this->IsDisplayYear() \|\|$this->IsDisplayMonth() \|\| $this->IsDisplayWeek()) ) {
	2126	// Don't adjust
	2127	return;
	2128	}
[2]	2129
[284]	2130	// Get day in week for start and ending date (Sun==0)
	2131	$ds=strftime("%w",$this->iStartDate);
	2132	$de=strftime("%w",$this->iEndDate);
	2133
	2134	// We want to start on iWeekStart day. But first we subtract a week
	2135	// if the startdate is "behind" the day the week start at.
	2136	// This way we ensure that the given start date is always included
	2137	// in the range. If we don't do this the nearest correct weekday in the week
	2138	// to start at might be later than the start date.
	2139	if( $ds < $this->iWeekStart )
	2140	$d = strtotime('-7 day',$this->iStartDate);
	2141	else
	2142	$d = $this->iStartDate;
	2143	$adjdate = strtotime(($this->iWeekStart-$ds).' day',$d /$this->iStartDate/ );
	2144	$this->iStartDate = $adjdate;
	2145
	2146	// We want to end on the last day of the week
	2147	$preferredEndDay = ($this->iWeekStart+6)%7;
	2148	if( $preferredEndDay != $de ) {
	2149	// Solve equivalence eq: $de + x ~ $preferredDay (mod 7)
	2150	$adj = (7+($preferredEndDay - $de)) % 7;
	2151	$adjdate = strtotime("+$adj day",$this->iEndDate);
	2152	$this->iEndDate = $adjdate;
	2153	}
[2]	2154	}
	2155
[284]	2156	// Specify background for the table title area (upper left corner of the table)
[2]	2157	function SetTableTitleBackground($aColor) {
[284]	2158	$this->iTableHeaderBackgroundColor = $aColor;
[2]	2159	}
	2160
[284]	2161	///////////////////////////////////////
	2162	// PRIVATE Methods
	2163
[2]	2164	// Determine the height of all the scale headers combined
	2165	function GetHeaderHeight() {
[284]	2166	$img=$this->iImg;
	2167	$height=1;
	2168	if( $this->minute->iShowLabels ) {
	2169	$height += $this->minute->GetFontHeight($img);
	2170	$height += $this->minute->iTitleVertMargin;
	2171	}
	2172	if( $this->hour->iShowLabels ) {
	2173	$height += $this->hour->GetFontHeight($img);
	2174	$height += $this->hour->iTitleVertMargin;
	2175	}
	2176	if( $this->day->iShowLabels ) {
	2177	$height += $this->day->GetFontHeight($img);
	2178	$height += $this->day->iTitleVertMargin;
	2179	}
	2180	if( $this->week->iShowLabels ) {
	2181	$height += $this->week->GetFontHeight($img);
	2182	$height += $this->week->iTitleVertMargin;
	2183	}
	2184	if( $this->month->iShowLabels ) {
	2185	$height += $this->month->GetFontHeight($img);
	2186	$height += $this->month->iTitleVertMargin;
	2187	}
	2188	if( $this->year->iShowLabels ) {
	2189	$height += $this->year->GetFontHeight($img);
	2190	$height += $this->year->iTitleVertMargin;
	2191	}
	2192	return $height;
[2]	2193	}
[284]	2194
[2]	2195	// Get width (in pixels) for a single day
	2196	function GetDayWidth() {
[284]	2197	return ($this->GetPlotWidth()-$this->iLabelWidth+1)/$this->GetNumberOfDays();
[2]	2198	}
	2199
	2200	// Get width (in pixels) for a single hour
	2201	function GetHourWidth() {
[284]	2202	return $this->GetDayWidth() / 24 ;
[2]	2203	}
	2204
	2205	function GetMinuteWidth() {
[284]	2206	return $this->GetHourWidth() / 60 ;
[2]	2207	}
	2208
	2209	// Nuber of days in a year
	2210	function GetNumDaysInYear($aYear) {
[284]	2211	if( $this->IsLeap($aYear) )
	2212	return 366;
	2213	else
	2214	return 365;
[2]	2215	}
[284]	2216
	2217	// Get week number
[2]	2218	function GetWeekNbr($aDate,$aSunStart=true) {
[284]	2219	// We can't use the internal strftime() since it gets the weeknumber
	2220	// wrong since it doesn't follow ISO on all systems since this is
	2221	// system linrary dependent.
	2222	// Even worse is that this works differently if we are on a Windows
	2223	// or UNIX box (it even differs between UNIX boxes how strftime()
	2224	// is natively implemented)
	2225	//
	2226	// Credit to Nicolas Hoizey <nhoizey@phpheaven.net> for this elegant
	2227	// version of Week Nbr calculation.
[2]	2228
[284]	2229	$day = $this->NormalizeDate($aDate);
	2230	if( $aSunStart )
	2231	$day += 606024;
	2232
	2233	/*-------------------------------------------------------------------------
	2234	According to ISO-8601 :
	2235	"Week 01 of a year is per definition the first week that has the Thursday in this year,
	2236	which is equivalent to the week that contains the fourth day of January.
	2237	In other words, the first week of a new year is the week that has the majority of its
	2238	days in the new year."
	2239
	2240	Be carefull, with PHP, -3 % 7 = -3, instead of 4 !!!
	2241
	2242	day of year = date("z", $day) + 1
	2243	offset to thursday = 3 - (date("w", $day) + 6) % 7
	2244	first thursday of year = 1 + (11 - date("w", mktime(0, 0, 0, 1, 1, date("Y", $day)))) % 7
	2245	week number = (thursday's day of year - first thursday's day of year) / 7 + 1
	2246	---------------------------------------------------------------------------*/
	2247
	2248	$thursday = $day + 60 * 60 * 24 * (3 - (date("w", $day) + 6) % 7); // take week's thursday
	2249	$week = 1 + (date("z", $thursday) - (11 - date("w", mktime(0, 0, 0, 1, 1, date("Y", $thursday)))) % 7) / 7;
	2250
	2251	return $week;
[2]	2252	}
[284]	2253
[2]	2254	// Is year a leap year?
	2255	function IsLeap($aYear) {
[284]	2256	// Is the year a leap year?
	2257	//$year = 0+date("Y",$aDate);
	2258	if( $aYear % 4 == 0)
	2259	if( !($aYear % 100 == 0) \|\| ($aYear % 400 == 0) )
	2260	return true;
	2261	return false;
[2]	2262	}
	2263
	2264	// Get current year
	2265	function GetYear($aDate) {
[284]	2266	return 0+Date("Y",$aDate);
[2]	2267	}
[284]	2268
[2]	2269	// Return number of days in a year
	2270	function GetNumDaysInMonth($aMonth,$aYear) {
[284]	2271	$days=array(31,28,31,30,31,30,31,31,30,31,30,31);
	2272	$daysl=array(31,29,31,30,31,30,31,31,30,31,30,31);
	2273	if( $this->IsLeap($aYear))
	2274	return $daysl[$aMonth];
	2275	else
	2276	return $days[$aMonth];
[2]	2277	}
[284]	2278
[2]	2279	// Get day in month
	2280	function GetMonthDayNbr($aDate) {
[284]	2281	return 0+strftime("%d",$aDate);
[2]	2282	}
	2283
	2284	// Get day in year
	2285	function GetYearDayNbr($aDate) {
[284]	2286	return 0+strftime("%j",$aDate);
[2]	2287	}
[284]	2288
[2]	2289	// Get month number
	2290	function GetMonthNbr($aDate) {
[284]	2291	return 0+strftime("%m",$aDate);
[2]	2292	}
[284]	2293
	2294	// Translate a date to screen coordinates (horizontal scale)
[2]	2295	function TranslateDate($aDate) {
[284]	2296	//
	2297	// In order to handle the problem with Daylight savings time
	2298	// the scale written with equal number of seconds per day beginning
	2299	// with the start date. This means that we "cement" the state of
	2300	// DST as it is in the start date. If later the scale includes the
	2301	// switchover date (depends on the locale) we need to adjust back
	2302	// if the date we try to translate has a different DST status since
	2303	// we would otherwise be off by one hour.
	2304	$aDate = $this->NormalizeDate($aDate);
	2305	$tmp = localtime($aDate);
	2306	$cloc = $tmp[8];
	2307	$tmp = localtime($this->iStartDate);
	2308	$sloc = $tmp[8];
	2309	$offset = 0;
	2310	if( $sloc != $cloc) {
	2311	if( $sloc )
	2312	$offset = 3600;
	2313	else
	2314	$offset = -3600;
	2315	}
	2316	$img=$this->iImg;
	2317	return ($aDate-$this->iStartDate-$offset)/SECPERDAY*$this->GetDayWidth()+$img->left_margin+$this->iLabelWidth;;
[2]	2318	}
	2319
[284]	2320	// Get screen coordinatesz for the vertical position for a bar
	2321	function TranslateVertPos($aPos,$atTop=false) {
	2322	$img=$this->iImg;
	2323	if( $aPos > $this->iVertLines )
	2324	JpGraphError::RaiseL(6015,$aPos);
	2325	// 'Illegal vertical position %d'
	2326	if( $this->iVertLayout == GANTT_EVEN ) {
	2327	// Position the top bar at 1 vert spacing from the scale
	2328	$pos = round($img->top_margin + $this->iVertHeaderSize + ($aPos+1)*$this->iVertSpacing);
	2329	}
	2330	else {
	2331	// position the top bar at 1/2 a vert spacing from the scale
	2332	$pos = round($img->top_margin + $this->iVertHeaderSize + $this->iTopPlotMargin + ($aPos+1)*$this->iVertSpacing);
	2333	}
	2334
	2335	if( $atTop )
	2336	$pos -= $this->iVertSpacing;
	2337
	2338	return $pos;
[2]	2339	}
[284]	2340
[2]	2341	// What is the vertical spacing?
	2342	function GetVertSpacing() {
[284]	2343	return $this->iVertSpacing;
[2]	2344	}
[284]	2345
[2]	2346	// Convert a date to timestamp
	2347	function NormalizeDate($aDate) {
[284]	2348	if( $aDate === false ) return false;
	2349	if( is_string($aDate) ) {
	2350	$t = strtotime($aDate);
	2351	if( $t === FALSE \|\| $t === -1 ) {
	2352	JpGraphError::RaiseL(6016,$aDate);
	2353	//("Date string ($aDate) specified for Gantt activity can not be interpretated. Please make sure it is a valid time string, e.g. 2005-04-23 13:30");
	2354	}
	2355	return $t;
	2356	}
	2357	elseif( is_int($aDate) \|\| is_float($aDate) )
	2358	return $aDate;
	2359	else
	2360	JpGraphError::RaiseL(6017,$aDate);
	2361	//Unknown date format in GanttScale ($aDate).");
[2]	2362	}
	2363
[284]	2364
[2]	2365	// Convert a time string to minutes
	2366
	2367	function TimeToMinutes($aTimeString) {
[284]	2368	// Split in hours and minutes
	2369	$pos=strpos($aTimeString,':');
	2370	$minint=60;
	2371	if( $pos === false ) {
	2372	$hourint = $aTimeString;
	2373	$minint = 0;
	2374	}
	2375	else {
	2376	$hourint = floor(substr($aTimeString,0,$pos));
	2377	$minint = floor(substr($aTimeString,$pos+1));
	2378	}
	2379	$minint += 60 * $hourint;
	2380	return $minint;
[2]	2381	}
	2382
[284]	2383	// Stroke the day scale (including gridlines)
[2]	2384	function StrokeMinutes($aYCoord,$getHeight=false) {
[284]	2385	$img=$this->iImg;
	2386	$xt=$img->left_margin+$this->iLabelWidth;
	2387	$yt=$aYCoord+$img->top_margin;
	2388	if( $this->minute->iShowLabels ) {
	2389	$img->SetFont($this->minute->iFFamily,$this->minute->iFStyle,$this->minute->iFSize);
	2390	$yb = $yt + $img->GetFontHeight() +
	2391	$this->minute->iTitleVertMargin + $this->minute->iFrameWeight;
	2392	if( $getHeight ) {
	2393	return $yb - $img->top_margin;
	2394	}
	2395	$xb = $img->width-$img->right_margin+1;
	2396	$img->SetColor($this->minute->iBackgroundColor);
	2397	$img->FilledRectangle($xt,$yt,$xb,$yb);
[2]	2398
[284]	2399	$x = $xt;
	2400	$img->SetTextAlign("center");
	2401	$day = date('w',$this->iStartDate);
	2402	$minint = $this->minute->GetIntervall() ;
	2403
	2404	if( 60 % $minint !== 0 ) {
[2]	2405	JpGraphError::RaiseL(6018,$minint);
[284]	2406	//'Intervall for minutes must divide the hour evenly, e.g. 1,5,10,12,15,20,30 etc You have specified an intervall of '.$minint.' minutes.');
	2407	}
[2]	2408
	2409
[284]	2410	$n = 60 / $minint;
	2411	$datestamp = $this->iStartDate;
	2412	$width = $this->GetHourWidth() / $n ;
	2413	if( $width < 8 ) {
	2414	// TO small width to draw minute scale
	2415	JpGraphError::RaiseL(6019,$width);
	2416	//('The available width ('.$width.') for minutes are to small for this scale to be displayed. Please use auto-sizing or increase the width of the graph.');
	2417	}
[2]	2418
[284]	2419	$nh = ceil(24*60 / $this->TimeToMinutes($this->hour->GetIntervall()) );
	2420	$nd = $this->GetNumberOfDays();
	2421	// Convert to intervall to seconds
	2422	$minint *= 60;
	2423	for($j=0; $j < $nd; ++$j, $day += 1, $day %= 7) {
	2424	for( $k=0; $k < $nh; ++$k ) {
	2425	for($i=0; $i < $n ;++$i, $x+=$width, $datestamp += $minint ) {
	2426	if( $day==6 \|\| $day==0 ) {
[2]	2427
[284]	2428	$img->PushColor($this->day->iWeekendBackgroundColor);
	2429	if( $this->iUsePlotWeekendBackground )
	2430	$img->FilledRectangle($x,$yt+$this->day->iFrameWeight,$x+$width,$img->height-$img->bottom_margin);
	2431	else
	2432	$img->FilledRectangle($x,$yt+$this->day->iFrameWeight,$x+$width,$yb-$this->day->iFrameWeight);
	2433	$img->PopColor();
[2]	2434
[284]	2435	}
[2]	2436
[284]	2437	if( $day==0 )
	2438	$img->SetColor($this->day->iSundayTextColor);
	2439	else
	2440	$img->SetColor($this->day->iTextColor);
[2]	2441
[284]	2442	switch( $this->minute->iStyle ) {
	2443	case MINUTESTYLE_CUSTOM:
	2444	$txt = date($this->minute->iLabelFormStr,$datestamp);
	2445	break;
	2446	case MINUTESTYLE_MM:
	2447	default:
	2448	// 15
	2449	$txt = date('i',$datestamp);
	2450	break;
	2451	}
	2452	$img->StrokeText(round($x+$width/2),round($yb-$this->minute->iTitleVertMargin),$txt);
	2453
	2454	// Fix a rounding problem the wrong way ..
	2455	// If we also have hour scale then don't draw the firsta or last
	2456	// gridline since that will be overwritten by the hour scale gridline if such exists.
	2457	// However, due to the propagation of rounding of the 'x+=width' term in the loop
	2458	// this might sometimes be one pixel of so we fix this by not drawing it.
	2459	// The proper way to fix it would be to re-calculate the scale for each step and
	2460	// not using the additive term.
	2461	if( !(($i == $n \|\| $i==0) && $this->hour->iShowLabels && $this->hour->grid->iShow) ) {
	2462	$img->SetColor($this->minute->grid->iColor);
	2463	$img->SetLineWeight($this->minute->grid->iWeight);
	2464	$img->Line($x,$yt,$x,$yb);
	2465	$this->minute->grid->Stroke($img,$x,$yb,$x,$img->height-$img->bottom_margin);
	2466	}
	2467	}
	2468	}
	2469	}
	2470	$img->SetColor($this->minute->iFrameColor);
	2471	$img->SetLineWeight($this->minute->iFrameWeight);
	2472	$img->Rectangle($xt,$yt,$xb,$yb);
	2473	return $yb - $img->top_margin;
	2474	}
	2475	return $aYCoord;
[2]	2476	}
	2477
[284]	2478	// Stroke the day scale (including gridlines)
[2]	2479	function StrokeHours($aYCoord,$getHeight=false) {
[284]	2480	$img=$this->iImg;
	2481	$xt=$img->left_margin+$this->iLabelWidth;
	2482	$yt=$aYCoord+$img->top_margin;
	2483	if( $this->hour->iShowLabels ) {
	2484	$img->SetFont($this->hour->iFFamily,$this->hour->iFStyle,$this->hour->iFSize);
	2485	$yb = $yt + $img->GetFontHeight() +
	2486	$this->hour->iTitleVertMargin + $this->hour->iFrameWeight;
	2487	if( $getHeight ) {
	2488	return $yb - $img->top_margin;
	2489	}
	2490	$xb = $img->width-$img->right_margin+1;
	2491	$img->SetColor($this->hour->iBackgroundColor);
	2492	$img->FilledRectangle($xt,$yt,$xb,$yb);
[2]	2493
[284]	2494	$x = $xt;
	2495	$img->SetTextAlign("center");
	2496	$tmp = $this->hour->GetIntervall() ;
	2497	$minint = $this->TimeToMinutes($tmp);
	2498	if( 1440 % $minint !== 0 ) {
[2]	2499	JpGraphError::RaiseL(6020,$tmp);
[284]	2500	//('Intervall for hours must divide the day evenly, e.g. 0:30, 1:00, 1:30, 4:00 etc. You have specified an intervall of '.$tmp);
	2501	}
[2]	2502
[284]	2503	$n = ceil(24*60 / $minint );
	2504	$datestamp = $this->iStartDate;
	2505	$day = date('w',$this->iStartDate);
	2506	$doback = !$this->minute->iShowLabels;
	2507	$width = $this->GetDayWidth() / $n ;
	2508	for($j=0; $j < $this->GetNumberOfDays(); ++$j, $day += 1,$day %= 7) {
	2509	for($i=0; $i < $n ;++$i, $x+=$width) {
	2510	if( $day==6 \|\| $day==0 ) {
[2]	2511
[284]	2512	$img->PushColor($this->day->iWeekendBackgroundColor);
	2513	if( $this->iUsePlotWeekendBackground && $doback )
	2514	$img->FilledRectangle($x,$yt+$this->day->iFrameWeight,$x+$width,$img->height-$img->bottom_margin);
	2515	else
	2516	$img->FilledRectangle($x,$yt+$this->day->iFrameWeight,$x+$width,$yb-$this->day->iFrameWeight);
	2517	$img->PopColor();
[2]	2518
[284]	2519	}
[2]	2520
[284]	2521	if( $day==0 )
	2522	$img->SetColor($this->day->iSundayTextColor);
	2523	else
	2524	$img->SetColor($this->day->iTextColor);
	2525
	2526	switch( $this->hour->iStyle ) {
	2527	case HOURSTYLE_HMAMPM:
	2528	// 1:35pm
	2529	$txt = date('g:ia',$datestamp);
	2530	break;
	2531	case HOURSTYLE_H24:
	2532	// 13
	2533	$txt = date('H',$datestamp);
	2534	break;
	2535	case HOURSTYLE_HAMPM:
	2536	$txt = date('ga',$datestamp);
	2537	break;
	2538	case HOURSTYLE_CUSTOM:
	2539	$txt = date($this->hour->iLabelFormStr,$datestamp);
	2540	break;
	2541	case HOURSTYLE_HM24:
	2542	default:
	2543	$txt = date('H:i',$datestamp);
	2544	break;
	2545	}
	2546	$img->StrokeText(round($x+$width/2),round($yb-$this->hour->iTitleVertMargin),$txt);
	2547	$img->SetColor($this->hour->grid->iColor);
	2548	$img->SetLineWeight($this->hour->grid->iWeight);
	2549	$img->Line($x,$yt,$x,$yb);
	2550	$this->hour->grid->Stroke($img,$x,$yb,$x,$img->height-$img->bottom_margin);
	2551	//$datestamp += $minint*60
	2552	$datestamp = mktime(date('H',$datestamp),date('i',$datestamp)+$minint,0,
	2553	date("m",$datestamp),date("d",$datestamp)+1,date("Y",$datestamp));
	2554
	2555	}
	2556	}
	2557	$img->SetColor($this->hour->iFrameColor);
	2558	$img->SetLineWeight($this->hour->iFrameWeight);
	2559	$img->Rectangle($xt,$yt,$xb,$yb);
	2560	return $yb - $img->top_margin;
	2561	}
	2562	return $aYCoord;
[2]	2563	}
	2564
	2565
[284]	2566	// Stroke the day scale (including gridlines)
[2]	2567	function StrokeDays($aYCoord,$getHeight=false) {
[284]	2568	$img=$this->iImg;
	2569	$daywidth=$this->GetDayWidth();
	2570	$xt=$img->left_margin+$this->iLabelWidth;
	2571	$yt=$aYCoord+$img->top_margin;
	2572	if( $this->day->iShowLabels ) {
	2573	$img->SetFont($this->day->iFFamily,$this->day->iFStyle,$this->day->iFSize);
	2574	$yb=$yt + $img->GetFontHeight() + $this->day->iTitleVertMargin + $this->day->iFrameWeight;
	2575	if( $getHeight ) {
	2576	return $yb - $img->top_margin;
	2577	}
	2578	$xb=$img->width-$img->right_margin+1;
	2579	$img->SetColor($this->day->iBackgroundColor);
	2580	$img->FilledRectangle($xt,$yt,$xb,$yb);
[2]	2581
[284]	2582	$x = $xt;
	2583	$img->SetTextAlign("center");
	2584	$day = date('w',$this->iStartDate);
	2585	$datestamp = $this->iStartDate;
[2]	2586
[284]	2587	$doback = !($this->hour->iShowLabels \|\| $this->minute->iShowLabels);
[2]	2588
[284]	2589	setlocale(LC_TIME,$this->iDateLocale->iLocale);
[2]	2590
[284]	2591	for($i=0; $i < $this->GetNumberOfDays(); ++$i, $x+=$daywidth, $day += 1,$day %= 7) {
	2592	if( $day==6 \|\| $day==0 ) {
	2593	$img->SetColor($this->day->iWeekendBackgroundColor);
	2594	if( $this->iUsePlotWeekendBackground && $doback)
	2595	$img->FilledRectangle($x,$yt+$this->day->iFrameWeight,
	2596	$x+$daywidth,$img->height-$img->bottom_margin);
	2597	else
	2598	$img->FilledRectangle($x,$yt+$this->day->iFrameWeight,
	2599	$x+$daywidth,$yb-$this->day->iFrameWeight);
	2600	}
[2]	2601
[284]	2602	$mn = strftime('%m',$datestamp);
	2603	if( $mn[0]=='0' )
	2604	$mn = $mn[1];
	2605
	2606	switch( $this->day->iStyle ) {
	2607	case DAYSTYLE_LONG:
	2608	// "Monday"
	2609	$txt = strftime('%A',$datestamp);
	2610	break;
	2611	case DAYSTYLE_SHORT:
	2612	// "Mon"
	2613	$txt = strftime('%a',$datestamp);
	2614	break;
	2615	case DAYSTYLE_SHORTDAYDATE1:
	2616	// "Mon 23/6"
	2617	$txt = strftime('%a %d/'.$mn,$datestamp);
	2618	break;
	2619	case DAYSTYLE_SHORTDAYDATE2:
	2620	// "Mon 23 Jun"
	2621	$txt = strftime('%a %d %b',$datestamp);
	2622	break;
	2623	case DAYSTYLE_SHORTDAYDATE3:
	2624	// "Mon 23 Jun 2003"
	2625	$txt = strftime('%a %d %b %Y',$datestamp);
	2626	break;
	2627	case DAYSTYLE_LONGDAYDATE1:
	2628	// "Monday 23 Jun"
	2629	$txt = strftime('%A %d %b',$datestamp);
	2630	break;
	2631	case DAYSTYLE_LONGDAYDATE2:
	2632	// "Monday 23 Jun 2003"
	2633	$txt = strftime('%A %d %b %Y',$datestamp);
	2634	break;
	2635	case DAYSTYLE_SHORTDATE1:
	2636	// "23/6"
	2637	$txt = strftime('%d/'.$mn,$datestamp);
	2638	break;
	2639	case DAYSTYLE_SHORTDATE2:
	2640	// "23 Jun"
	2641	$txt = strftime('%d %b',$datestamp);
	2642	break;
	2643	case DAYSTYLE_SHORTDATE3:
	2644	// "Mon 23"
	2645	$txt = strftime('%a %d',$datestamp);
	2646	break;
	2647	case DAYSTYLE_SHORTDATE4:
	2648	// "23"
	2649	$txt = strftime('%d',$datestamp);
	2650	break;
	2651	case DAYSTYLE_CUSTOM:
	2652	// Custom format
	2653	$txt = strftime($this->day->iLabelFormStr,$datestamp);
	2654	break;
	2655	case DAYSTYLE_ONELETTER:
	2656	default:
	2657	// "M"
	2658	$txt = strftime('%A',$datestamp);
	2659	$txt = strtoupper($txt[0]);
	2660	break;
	2661	}
	2662
	2663	if( $day==0 )
	2664	$img->SetColor($this->day->iSundayTextColor);
	2665	else
	2666	$img->SetColor($this->day->iTextColor);
	2667	$img->StrokeText(round($x+$daywidth/2+1),
	2668	round($yb-$this->day->iTitleVertMargin),$txt);
	2669	$img->SetColor($this->day->grid->iColor);
	2670	$img->SetLineWeight($this->day->grid->iWeight);
	2671	$img->Line($x,$yt,$x,$yb);
	2672	$this->day->grid->Stroke($img,$x,$yb,$x,$img->height-$img->bottom_margin);
	2673	$datestamp = mktime(0,0,0,date("m",$datestamp),date("d",$datestamp)+1,date("Y",$datestamp));
	2674	//$datestamp += SECPERDAY;
	2675
	2676	}
	2677	$img->SetColor($this->day->iFrameColor);
	2678	$img->SetLineWeight($this->day->iFrameWeight);
	2679	$img->Rectangle($xt,$yt,$xb,$yb);
	2680	return $yb - $img->top_margin;
	2681	}
	2682	return $aYCoord;
[2]	2683	}
[284]	2684
[2]	2685	// Stroke week header and grid
	2686	function StrokeWeeks($aYCoord,$getHeight=false) {
[284]	2687	if( $this->week->iShowLabels ) {
	2688	$img=$this->iImg;
	2689	$yt=$aYCoord+$img->top_margin;
	2690	$img->SetFont($this->week->iFFamily,$this->week->iFStyle,$this->week->iFSize);
	2691	$yb=$yt + $img->GetFontHeight() + $this->week->iTitleVertMargin + $this->week->iFrameWeight;
[2]	2692
[284]	2693	if( $getHeight ) {
	2694	return $yb - $img->top_margin;
	2695	}
[2]	2696
[284]	2697	$xt=$img->left_margin+$this->iLabelWidth;
	2698	$weekwidth=$this->GetDayWidth()*7;
	2699	$wdays=$this->iDateLocale->GetDayAbb();
	2700	$xb=$img->width-$img->right_margin+1;
	2701	$week = $this->iStartDate;
	2702	$weeknbr=$this->GetWeekNbr($week);
	2703	$img->SetColor($this->week->iBackgroundColor);
	2704	$img->FilledRectangle($xt,$yt,$xb,$yb);
	2705	$img->SetColor($this->week->grid->iColor);
	2706	$x = $xt;
	2707	if( $this->week->iStyle==WEEKSTYLE_WNBR ) {
	2708	$img->SetTextAlign("center");
	2709	$txtOffset = $weekwidth/2+1;
	2710	}
	2711	elseif( $this->week->iStyle==WEEKSTYLE_FIRSTDAY \|\|
	2712	$this->week->iStyle==WEEKSTYLE_FIRSTDAY2 \|\|
	2713	$this->week->iStyle==WEEKSTYLE_FIRSTDAYWNBR \|\|
	2714	$this->week->iStyle==WEEKSTYLE_FIRSTDAY2WNBR ) {
	2715	$img->SetTextAlign("left");
	2716	$txtOffset = 3;
	2717	}
	2718	else {
	2719	JpGraphError::RaiseL(6021);
	2720	//("Unknown formatting style for week.");
	2721	}
[2]	2722
[284]	2723	for($i=0; $i<$this->GetNumberOfDays()/7; ++$i, $x+=$weekwidth) {
	2724	$img->PushColor($this->week->iTextColor);
	2725
	2726	if( $this->week->iStyle==WEEKSTYLE_WNBR )
	2727	$txt = sprintf($this->week->iLabelFormStr,$weeknbr);
	2728	elseif( $this->week->iStyle==WEEKSTYLE_FIRSTDAY \|\|
	2729	$this->week->iStyle==WEEKSTYLE_FIRSTDAYWNBR )
	2730	$txt = date("j/n",$week);
	2731	elseif( $this->week->iStyle==WEEKSTYLE_FIRSTDAY2 \|\|
	2732	$this->week->iStyle==WEEKSTYLE_FIRSTDAY2WNBR ) {
	2733	$monthnbr = date("n",$week)-1;
	2734	$shortmonth = $this->iDateLocale->GetShortMonthName($monthnbr);
	2735	$txt = Date("j",$week)." ".$shortmonth;
	2736	}
	2737
	2738	if( $this->week->iStyle==WEEKSTYLE_FIRSTDAYWNBR \|\|
	2739	$this->week->iStyle==WEEKSTYLE_FIRSTDAY2WNBR ) {
	2740	$w = sprintf($this->week->iLabelFormStr,$weeknbr);
	2741	$txt .= ' '.$w;
	2742	}
	2743
	2744	$img->StrokeText(round($x+$txtOffset),
	2745	round($yb-$this->week->iTitleVertMargin),$txt);
	2746
	2747	$week = strtotime('+7 day',$week);
	2748	$weeknbr = $this->GetWeekNbr($week);
	2749	$img->PopColor();
	2750	$img->SetLineWeight($this->week->grid->iWeight);
	2751	$img->Line($x,$yt,$x,$yb);
	2752	$this->week->grid->Stroke($img,$x,$yb,$x,$img->height-$img->bottom_margin);
	2753	}
	2754	$img->SetColor($this->week->iFrameColor);
	2755	$img->SetLineWeight($this->week->iFrameWeight);
	2756	$img->Rectangle($xt,$yt,$xb,$yb);
	2757	return $yb-$img->top_margin;
	2758	}
	2759	return $aYCoord;
	2760	}
	2761
[2]	2762	// Format the mont scale header string
	2763	function GetMonthLabel($aMonthNbr,$year) {
[284]	2764	$sn = $this->iDateLocale->GetShortMonthName($aMonthNbr);
	2765	$ln = $this->iDateLocale->GetLongMonthName($aMonthNbr);
	2766	switch($this->month->iStyle) {
	2767	case MONTHSTYLE_SHORTNAME:
	2768	$m=$sn;
	2769	break;
	2770	case MONTHSTYLE_LONGNAME:
	2771	$m=$ln;
	2772	break;
	2773	case MONTHSTYLE_SHORTNAMEYEAR2:
	2774	$m=$sn." '".substr("".$year,2);
	2775	break;
	2776	case MONTHSTYLE_SHORTNAMEYEAR4:
	2777	$m=$sn." ".$year;
	2778	break;
	2779	case MONTHSTYLE_LONGNAMEYEAR2:
	2780	$m=$ln." '".substr("".$year,2);
	2781	break;
	2782	case MONTHSTYLE_LONGNAMEYEAR4:
	2783	$m=$ln." ".$year;
	2784	break;
	2785	case MONTHSTYLE_FIRSTLETTER:
	2786	$m=$sn[0];
	2787	break;
	2788	}
	2789	return $m;
[2]	2790	}
[284]	2791
[2]	2792	// Stroke month scale and gridlines
	2793	function StrokeMonths($aYCoord,$getHeight=false) {
[284]	2794	if( $this->month->iShowLabels ) {
	2795	$img=$this->iImg;
	2796	$img->SetFont($this->month->iFFamily,$this->month->iFStyle,$this->month->iFSize);
	2797	$yt=$aYCoord+$img->top_margin;
	2798	$yb=$yt + $img->GetFontHeight() + $this->month->iTitleVertMargin + $this->month->iFrameWeight;
	2799	if( $getHeight ) {
	2800	return $yb - $img->top_margin;
	2801	}
	2802	$monthnbr = $this->GetMonthNbr($this->iStartDate)-1;
	2803	$xt=$img->left_margin+$this->iLabelWidth;
	2804	$xb=$img->width-$img->right_margin+1;
[2]	2805
[284]	2806	$img->SetColor($this->month->iBackgroundColor);
	2807	$img->FilledRectangle($xt,$yt,$xb,$yb);
	2808
	2809	$img->SetLineWeight($this->month->grid->iWeight);
	2810	$img->SetColor($this->month->iTextColor);
	2811	$year = 0+strftime("%Y",$this->iStartDate);
	2812	$img->SetTextAlign("center");
	2813	if( $this->GetMonthNbr($this->iStartDate) == $this->GetMonthNbr($this->iEndDate)
	2814	&& $this->GetYear($this->iStartDate)==$this->GetYear($this->iEndDate) ) {
	2815	$monthwidth=$this->GetDayWidth()*($this->GetMonthDayNbr($this->iEndDate) - $this->GetMonthDayNbr($this->iStartDate) + 1);
	2816	}
	2817	else {
	2818	$monthwidth=$this->GetDayWidth()*($this->GetNumDaysInMonth($monthnbr,$year)-$this->GetMonthDayNbr($this->iStartDate)+1);
	2819	}
	2820	// Is it enough space to stroke the first month?
	2821	$monthName = $this->GetMonthLabel($monthnbr,$year);
	2822	if( $monthwidth >= 1.2*$img->GetTextWidth($monthName) ) {
	2823	$img->SetColor($this->month->iTextColor);
	2824	$img->StrokeText(round($xt+$monthwidth/2+1),
	2825	round($yb-$this->month->iTitleVertMargin),
	2826	$monthName);
	2827	}
	2828	$x = $xt + $monthwidth;
	2829	while( $x < $xb ) {
	2830	$img->SetColor($this->month->grid->iColor);
	2831	$img->Line($x,$yt,$x,$yb);
	2832	$this->month->grid->Stroke($img,$x,$yb,$x,$img->height-$img->bottom_margin);
	2833	$monthnbr++;
	2834	if( $monthnbr==12 ) {
	2835	$monthnbr=0;
	2836	$year++;
	2837	}
	2838	$monthName = $this->GetMonthLabel($monthnbr,$year);
	2839	$monthwidth=$this->GetDayWidth()*$this->GetNumDaysInMonth($monthnbr,$year);
	2840	if( $x + $monthwidth < $xb )
	2841	$w = $monthwidth;
	2842	else
	2843	$w = $xb-$x;
	2844	if( $w >= 1.2*$img->GetTextWidth($monthName) ) {
	2845	$img->SetColor($this->month->iTextColor);
	2846	$img->StrokeText(round($x+$w/2+1),
	2847	round($yb-$this->month->iTitleVertMargin),$monthName);
	2848	}
	2849	$x += $monthwidth;
	2850	}
	2851	$img->SetColor($this->month->iFrameColor);
	2852	$img->SetLineWeight($this->month->iFrameWeight);
	2853	$img->Rectangle($xt,$yt,$xb,$yb);
	2854	return $yb-$img->top_margin;
	2855	}
	2856	return $aYCoord;
[2]	2857	}
	2858
	2859	// Stroke year scale and gridlines
	2860	function StrokeYears($aYCoord,$getHeight=false) {
[284]	2861	if( $this->year->iShowLabels ) {
	2862	$img=$this->iImg;
	2863	$yt=$aYCoord+$img->top_margin;
	2864	$img->SetFont($this->year->iFFamily,$this->year->iFStyle,$this->year->iFSize);
	2865	$yb=$yt + $img->GetFontHeight() + $this->year->iTitleVertMargin + $this->year->iFrameWeight;
[2]	2866
[284]	2867	if( $getHeight ) {
	2868	return $yb - $img->top_margin;
	2869	}
[2]	2870
[284]	2871	$xb=$img->width-$img->right_margin+1;
	2872	$xt=$img->left_margin+$this->iLabelWidth;
	2873	$year = $this->GetYear($this->iStartDate);
	2874	$img->SetColor($this->year->iBackgroundColor);
	2875	$img->FilledRectangle($xt,$yt,$xb,$yb);
	2876	$img->SetLineWeight($this->year->grid->iWeight);
	2877	$img->SetTextAlign("center");
	2878	if( $year == $this->GetYear($this->iEndDate) )
	2879	$yearwidth=$this->GetDayWidth()*($this->GetYearDayNbr($this->iEndDate)-$this->GetYearDayNbr($this->iStartDate)+1);
	2880	else
	2881	$yearwidth=$this->GetDayWidth()*($this->GetNumDaysInYear($year)-$this->GetYearDayNbr($this->iStartDate)+1);
	2882
	2883	// The space for a year must be at least 20% bigger than the actual text
	2884	// so we allow 10% margin on each side
	2885	if( $yearwidth >= 1.20*$img->GetTextWidth("".$year) ) {
	2886	$img->SetColor($this->year->iTextColor);
	2887	$img->StrokeText(round($xt+$yearwidth/2+1),
	2888	round($yb-$this->year->iTitleVertMargin),
	2889	$year);
	2890	}
	2891	$x = $xt + $yearwidth;
	2892	while( $x < $xb ) {
	2893	$img->SetColor($this->year->grid->iColor);
	2894	$img->Line($x,$yt,$x,$yb);
	2895	$this->year->grid->Stroke($img,$x,$yb,$x,$img->height-$img->bottom_margin);
	2896	$year += 1;
	2897	$yearwidth=$this->GetDayWidth()*$this->GetNumDaysInYear($year);
	2898	if( $x + $yearwidth < $xb )
	2899	$w = $yearwidth;
	2900	else
	2901	$w = $xb-$x;
	2902	if( $w >= 1.2*$img->GetTextWidth("".$year) ) {
	2903	$img->SetColor($this->year->iTextColor);
	2904	$img->StrokeText(round($x+$w/2+1),
	2905	round($yb-$this->year->iTitleVertMargin),
	2906	$year);
	2907	}
	2908	$x += $yearwidth;
	2909	}
	2910	$img->SetColor($this->year->iFrameColor);
	2911	$img->SetLineWeight($this->year->iFrameWeight);
	2912	$img->Rectangle($xt,$yt,$xb,$yb);
	2913	return $yb-$img->top_margin;
	2914	}
	2915	return $aYCoord;
[2]	2916	}
[284]	2917
[2]	2918	// Stroke table title (upper left corner)
	2919	function StrokeTableHeaders($aYBottom) {
[284]	2920	$img=$this->iImg;
	2921	$xt=$img->left_margin;
	2922	$yt=$img->top_margin;
	2923	$xb=$xt+$this->iLabelWidth;
	2924	$yb=$aYBottom+$img->top_margin;
[2]	2925
[284]	2926	if( $this->tableTitle->iShow ) {
	2927	$img->SetColor($this->iTableHeaderBackgroundColor);
	2928	$img->FilledRectangle($xt,$yt,$xb,$yb);
	2929	$this->tableTitle->Align("center","top");
	2930	$this->tableTitle->Stroke($img,$xt+($xb-$xt)/2+1,$yt+2);
	2931	$img->SetColor($this->iTableHeaderFrameColor);
	2932	$img->SetLineWeight($this->iTableHeaderFrameWeight);
	2933	$img->Rectangle($xt,$yt,$xb,$yb);
	2934	}
[2]	2935
[284]	2936	$this->actinfo->Stroke($img,$xt,$yt,$xb,$yb,$this->tableTitle->iShow);
[2]	2937
	2938
[284]	2939	// Draw the horizontal dividing line
	2940	$this->dividerh->Stroke($img,$xt,$yb,$img->width-$img->right_margin,$yb);
[2]	2941
[284]	2942	// Draw the vertical dividing line
	2943	// We do the width "manually" since we want the line only to grow
	2944	// to the left
	2945	$fancy = $this->divider->iStyle == 'fancy' ;
	2946	if( $fancy ) {
	2947	$this->divider->iStyle = 'solid';
	2948	}
[2]	2949
[284]	2950	$tmp = $this->divider->iWeight;
	2951	$this->divider->iWeight=1;
	2952	$y = $img->height-$img->bottom_margin;
	2953	for($i=0; $i < $tmp; ++$i ) {
	2954	$this->divider->Stroke($img,$xb-$i,$yt,$xb-$i,$y);
	2955	}
	2956
	2957	// Should we draw "fancy" divider
	2958	if( $fancy ) {
	2959	$img->SetLineWeight(1);
	2960	$img->SetColor($this->iTableHeaderFrameColor);
	2961	$img->Line($xb,$yt,$xb,$y);
	2962	$img->Line($xb-$tmp+1,$yt,$xb-$tmp+1,$y);
	2963	$img->SetColor('white');
	2964	$img->Line($xb-$tmp+2,$yt,$xb-$tmp+2,$y);
	2965	}
[2]	2966	}
	2967
	2968	// Main entry point to stroke scale
	2969	function Stroke() {
[284]	2970	if( !$this->IsRangeSet() ) {
	2971	JpGraphError::RaiseL(6022);
	2972	//("Gantt scale has not been specified.");
	2973	}
	2974	$img=$this->iImg;
[2]	2975
[284]	2976	// If minutes are displayed then hour interval must be 1
	2977	if( $this->IsDisplayMinute() && $this->hour->GetIntervall() > 1 ) {
	2978	JpGraphError::RaiseL(6023);
	2979	//('If you display both hour and minutes the hour intervall must be 1 (Otherwise it doesn\' make sense to display minutes).');
	2980	}
[2]	2981
[284]	2982	// Stroke all headers. As argument we supply the offset from the
	2983	// top which depends on any previous headers
[2]	2984
[284]	2985	// First find out the height of each header
	2986	$offy=$this->StrokeYears(0,true);
	2987	$offm=$this->StrokeMonths($offy,true);
	2988	$offw=$this->StrokeWeeks($offm,true);
	2989	$offd=$this->StrokeDays($offw,true);
	2990	$offh=$this->StrokeHours($offd,true);
	2991	$offmin=$this->StrokeMinutes($offh,true);
[2]	2992
[284]	2993
	2994	// ... then we can stroke them in the "backwards order to ensure that
	2995	// the larger scale gridlines is stroked over the smaller scale gridline
	2996	$this->StrokeMinutes($offh);
	2997	$this->StrokeHours($offd);
	2998	$this->StrokeDays($offw);
	2999	$this->StrokeWeeks($offm);
	3000	$this->StrokeMonths($offy);
	3001	$this->StrokeYears(0);
	3002
	3003	// Now when we now the oaverall size of the scale headers
	3004	// we can stroke the overall table headers
	3005	$this->StrokeTableHeaders($offmin);
	3006
	3007	// Now we can calculate the correct scaling factor for each vertical position
	3008	$this->iAvailableHeight = $img->height - $img->top_margin - $img->bottom_margin - $offd;
	3009
	3010	$this->iVertHeaderSize = $offmin;
	3011	if( $this->iVertSpacing == -1 )
	3012	$this->iVertSpacing = $this->iAvailableHeight / $this->iVertLines;
	3013	}
[2]	3014	}
	3015
	3016
	3017	//===================================================
	3018	// CLASS GanttConstraint
	3019	// Just a structure to store all the values for a constraint
	3020	//===================================================
	3021	class GanttConstraint {
	3022	public $iConstrainRow;
	3023	public $iConstrainType;
	3024	public $iConstrainColor;
	3025	public $iConstrainArrowSize;
	3026	public $iConstrainArrowType;
	3027
[284]	3028	//---------------
	3029	// CONSTRUCTOR
	3030	function __construct($aRow,$aType,$aColor,$aArrowSize,$aArrowType){
	3031	$this->iConstrainType = $aType;
	3032	$this->iConstrainRow = $aRow;
	3033	$this->iConstrainColor=$aColor;
	3034	$this->iConstrainArrowSize=$aArrowSize;
	3035	$this->iConstrainArrowType=$aArrowType;
[2]	3036	}
	3037	}
	3038
	3039
	3040	//===================================================
	3041	// CLASS GanttPlotObject
	3042	// The common signature for a Gantt object
	3043	//===================================================
	3044	class GanttPlotObject {
	3045	public $title,$caption;
	3046	public $csimarea='',$csimtarget='',$csimwintarget='',$csimalt='';
[284]	3047	public $constraints = array();
[2]	3048	public $iCaptionMargin=5;
	3049	public $iConstrainPos=array();
[284]	3050	protected $iStart=""; // Start date
	3051	public $iVPos=0; // Vertical position
	3052	protected $iLabelLeftMargin=2; // Title margin
	3053
	3054	function __construct() {
	3055	$this->title = new TextProperty();
	3056	$this->title->Align('left','center');
	3057	$this->caption = new TextProperty();
[2]	3058	}
	3059
	3060	function GetCSIMArea() {
[284]	3061	return $this->csimarea;
[2]	3062	}
	3063
	3064	function SetCSIMTarget($aTarget,$aAlt='',$aWinTarget='') {
[284]	3065	if( !is_string($aTarget) ) {
	3066	$tv = substr(var_export($aTarget,true),0,40);
	3067	JpGraphError::RaiseL(6024,$tv);
	3068	//('CSIM Target must be specified as a string.'."\nStart of target is:\n$tv");
	3069	}
	3070	if( !is_string($aAlt) ) {
	3071	$tv = substr(var_export($aAlt,true),0,40);
	3072	JpGraphError::RaiseL(6025,$tv);
	3073	//('CSIM Alt text must be specified as a string.'."\nStart of alt text is:\n$tv");
	3074	}
[2]	3075
	3076	$this->csimtarget=$aTarget;
	3077	$this->csimwintarget=$aWinTarget;
	3078	$this->csimalt=$aAlt;
	3079	}
[284]	3080
[2]	3081	function SetCSIMAlt($aAlt) {
[284]	3082	if( !is_string($aAlt) ) {
	3083	$tv = substr(var_export($aAlt,true),0,40);
	3084	JpGraphError::RaiseL(6025,$tv);
	3085	//('CSIM Alt text must be specified as a string.'."\nStart of alt text is:\n$tv");
	3086	}
[2]	3087	$this->csimalt=$aAlt;
	3088	}
	3089
	3090	function SetConstrain($aRow,$aType,$aColor='black',$aArrowSize=ARROW_S2,$aArrowType=ARROWT_SOLID) {
[284]	3091	$this->constraints[] = new GanttConstraint($aRow, $aType, $aColor, $aArrowSize, $aArrowType);
[2]	3092	}
	3093
	3094	function SetConstrainPos($xt,$yt,$xb,$yb) {
[284]	3095	$this->iConstrainPos = array($xt,$yt,$xb,$yb);
[2]	3096	}
	3097
	3098	function GetMinDate() {
[284]	3099	return $this->iStart;
[2]	3100	}
	3101
	3102	function GetMaxDate() {
[284]	3103	return $this->iStart;
[2]	3104	}
[284]	3105
[2]	3106	function SetCaptionMargin($aMarg) {
[284]	3107	$this->iCaptionMargin=$aMarg;
[2]	3108	}
	3109
	3110	function GetAbsHeight($aImg) {
[284]	3111	return 0;
[2]	3112	}
[284]	3113
[2]	3114	function GetLineNbr() {
[284]	3115	return $this->iVPos;
[2]	3116	}
	3117
	3118	function SetLabelLeftMargin($aOff) {
[284]	3119	$this->iLabelLeftMargin=$aOff;
	3120	}
[2]	3121
	3122	function StrokeActInfo($aImg,$aScale,$aYPos) {
[284]	3123	$cols=array();
	3124	$aScale->actinfo->GetColStart($aImg,$cols,true);
	3125	$this->title->Stroke($aImg,$cols,$aYPos);
[2]	3126	}
	3127	}
	3128
	3129	//===================================================
	3130	// CLASS Progress
[284]	3131	// Holds parameters for the progress indicator
[2]	3132	// displyed within a bar
	3133	//===================================================
	3134	class Progress {
	3135	public $iProgress=-1;
	3136	public $iPattern=GANTT_SOLID;
	3137	public $iColor="black", $iFillColor='black';
[284]	3138	public $iDensity=98, $iHeight=0.65;
	3139
[2]	3140	function Set($aProg) {
[284]	3141	if( $aProg < 0.0 \|\| $aProg > 1.0 ) {
	3142	JpGraphError::RaiseL(6027);
	3143	//("Progress value must in range [0, 1]");
	3144	}
	3145	$this->iProgress = $aProg;
[2]	3146	}
	3147
[284]	3148	function SetPattern($aPattern,$aColor="blue",$aDensity=98) {
	3149	$this->iPattern = $aPattern;
	3150	$this->iColor = $aColor;
	3151	$this->iDensity = $aDensity;
[2]	3152	}
	3153
	3154	function SetFillColor($aColor) {
[284]	3155	$this->iFillColor = $aColor;
[2]	3156	}
[284]	3157
[2]	3158	function SetHeight($aHeight) {
[284]	3159	$this->iHeight = $aHeight;
[2]	3160	}
	3161	}
	3162
	3163	define('GANTT_HGRID1',0);
	3164	define('GANTT_HGRID2',1);
	3165
	3166	//===================================================
	3167	// CLASS HorizontalGridLine
	3168	// Responsible for drawinf horizontal gridlines and filled alternatibg rows
	3169	//===================================================
	3170	class HorizontalGridLine {
	3171	private $iGraph=NULL;
	3172	private $iRowColor1 = '', $iRowColor2 = '';
	3173	private $iShow=false;
	3174	private $line=null;
	3175	private $iStart=0; // 0=from left margin, 1=just along header
	3176
[284]	3177	function __construct() {
	3178	$this->line = new LineProperty();
	3179	$this->line->SetColor('gray@0.4');
	3180	$this->line->SetStyle('dashed');
[2]	3181	}
[284]	3182
[2]	3183	function Show($aShow=true) {
[284]	3184	$this->iShow = $aShow;
[2]	3185	}
	3186
	3187	function SetRowFillColor($aColor1,$aColor2='') {
[284]	3188	$this->iRowColor1 = $aColor1;
	3189	$this->iRowColor2 = $aColor2;
[2]	3190	}
	3191
	3192	function SetStart($aStart) {
[284]	3193	$this->iStart = $aStart;
[2]	3194	}
	3195
	3196	function Stroke($aImg,$aScale) {
	3197
[284]	3198	if( ! $this->iShow ) return;
[2]	3199
[284]	3200	// Get horizontal width of line
	3201	/*
	3202	$limst = $aScale->iStartDate;
	3203	$limen = $aScale->iEndDate;
	3204	$xt = round($aScale->TranslateDate($aScale->iStartDate));
	3205	$xb = round($aScale->TranslateDate($limen));
	3206	*/
[2]	3207
[284]	3208	if( $this->iStart === 0 ) {
	3209	$xt = $aImg->left_margin-1;
	3210	}
	3211	else {
	3212	$xt = round($aScale->TranslateDate($aScale->iStartDate))+1;
	3213	}
[2]	3214
[284]	3215	$xb = $aImg->width-$aImg->right_margin;
[2]	3216
[284]	3217	$yt = round($aScale->TranslateVertPos(0));
	3218	$yb = round($aScale->TranslateVertPos(1));
	3219	$height = $yb - $yt;
	3220
	3221	// Loop around for all lines in the chart
	3222	for($i=0; $i < $aScale->iVertLines; ++$i ) {
	3223	$yb = $yt - $height;
	3224	$this->line->Stroke($aImg,$xt,$yb,$xb,$yb);
	3225	if( $this->iRowColor1 !== '' ) {
	3226	if( $i % 2 == 0 ) {
	3227	$aImg->PushColor($this->iRowColor1);
	3228	$aImg->FilledRectangle($xt,$yt,$xb,$yb);
	3229	$aImg->PopColor();
	3230	}
	3231	elseif( $this->iRowColor2 !== '' ) {
	3232	$aImg->PushColor($this->iRowColor2);
	3233	$aImg->FilledRectangle($xt,$yt,$xb,$yb);
	3234	$aImg->PopColor();
	3235	}
	3236	}
	3237	$yt = round($aScale->TranslateVertPos($i+1));
	3238	}
	3239	$yb = $yt - $height;
	3240	$this->line->Stroke($aImg,$xt,$yb,$xb,$yb);
[2]	3241	}
	3242	}
	3243
	3244
	3245	//===================================================
	3246	// CLASS GanttBar
	3247	// Responsible for formatting individual gantt bars
	3248	//===================================================
	3249	class GanttBar extends GanttPlotObject {
	3250	public $progress;
	3251	public $leftMark,$rightMark;
	3252	private $iEnd;
	3253	private $iHeightFactor=0.5;
	3254	private $iFillColor="white",$iFrameColor="black";
	3255	private $iShadow=false,$iShadowColor="darkgray",$iShadowWidth=1,$iShadowFrame="black";
	3256	private $iPattern=GANTT_RDIAG,$iPatternColor="blue",$iPatternDensity=95;
[284]	3257	private $iBreakStyle=false, $iBreakLineStyle='dotted',$iBreakLineWeight=1;
	3258	//---------------
	3259	// CONSTRUCTOR
	3260	function __construct($aPos,$aLabel,$aStart,$aEnd,$aCaption="",$aHeightFactor=0.6) {
	3261	parent::__construct();
	3262	$this->iStart = $aStart;
	3263	// Is the end date given as a date or as number of days added to start date?
	3264	if( is_string($aEnd) ) {
	3265	// If end date has been specified without a time we will asssume
	3266	// end date is at the end of that date
	3267	if( strpos($aEnd,':') === false ) {
	3268	$this->iEnd = strtotime($aEnd)+SECPERDAY-1;
	3269	}
	3270	else {
	3271	$this->iEnd = $aEnd;
	3272	}
	3273	}
	3274	elseif(is_int($aEnd) \|\| is_float($aEnd) ) {
	3275	$this->iEnd = strtotime($aStart)+round($aEnd*SECPERDAY);
	3276	}
	3277	$this->iVPos = $aPos;
	3278	$this->iHeightFactor = $aHeightFactor;
	3279	$this->title->Set($aLabel);
	3280	$this->caption = new TextProperty($aCaption);
	3281	$this->caption->Align("left","center");
	3282	$this->leftMark =new PlotMark();
	3283	$this->leftMark->Hide();
	3284	$this->rightMark=new PlotMark();
	3285	$this->rightMark->Hide();
	3286	$this->progress = new Progress();
[2]	3287	}
[284]	3288
	3289	//---------------
	3290	// PUBLIC METHODS
[2]	3291	function SetShadow($aShadow=true,$aColor="gray") {
[284]	3292	$this->iShadow=$aShadow;
	3293	$this->iShadowColor=$aColor;
[2]	3294	}
[284]	3295
	3296	function SetBreakStyle($aFlg=true,$aLineStyle='dotted',$aLineWeight=1) {
	3297	$this->iBreakStyle = $aFlg;
	3298	$this->iBreakLineStyle = $aLineStyle;
	3299	$this->iBreakLineWeight = $aLineWeight;
	3300	}
	3301
[2]	3302	function GetMaxDate() {
[284]	3303	return $this->iEnd;
[2]	3304	}
[284]	3305
[2]	3306	function SetHeight($aHeight) {
[284]	3307	$this->iHeightFactor = $aHeight;
[2]	3308	}
	3309
	3310	function SetColor($aColor) {
[284]	3311	$this->iFrameColor = $aColor;
[2]	3312	}
	3313
	3314	function SetFillColor($aColor) {
[284]	3315	$this->iFillColor = $aColor;
[2]	3316	}
	3317
	3318	function GetAbsHeight($aImg) {
[284]	3319	if( is_int($this->iHeightFactor) \|\| $this->leftMark->show \|\| $this->rightMark->show ) {
	3320	$m=-1;
	3321	if( is_int($this->iHeightFactor) )
	3322	$m = $this->iHeightFactor;
	3323	if( $this->leftMark->show )
	3324	$m = max($m,$this->leftMark->width*2);
	3325	if( $this->rightMark->show )
	3326	$m = max($m,$this->rightMark->width*2);
	3327	return $m;
	3328	}
	3329	else
	3330	return -1;
[2]	3331	}
[284]	3332
	3333	function SetPattern($aPattern,$aColor="blue",$aDensity=95) {
	3334	$this->iPattern = $aPattern;
	3335	$this->iPatternColor = $aColor;
	3336	$this->iPatternDensity = $aDensity;
[2]	3337	}
	3338
	3339	function Stroke($aImg,$aScale) {
[284]	3340	$factory = new RectPatternFactory();
	3341	$prect = $factory->Create($this->iPattern,$this->iPatternColor);
	3342	$prect->SetDensity($this->iPatternDensity);
[2]	3343
[284]	3344	// If height factor is specified as a float between 0,1 then we take it as meaning
	3345	// percetage of the scale width between horizontal line.
	3346	// If it is an integer > 1 we take it to mean the absolute height in pixels
	3347	if( $this->iHeightFactor > -0.0 && $this->iHeightFactor <= 1.1)
	3348	$vs = $aScale->GetVertSpacing()*$this->iHeightFactor;
	3349	elseif(is_int($this->iHeightFactor) && $this->iHeightFactor>2 && $this->iHeightFactor < 200 )
	3350	$vs = $this->iHeightFactor;
	3351	else {
	3352	JpGraphError::RaiseL(6028,$this->iHeightFactor);
	3353	// ("Specified height (".$this->iHeightFactor.") for gantt bar is out of range.");
	3354	}
[2]	3355
[284]	3356	// Clip date to min max dates to show
	3357	$st = $aScale->NormalizeDate($this->iStart);
	3358	$en = $aScale->NormalizeDate($this->iEnd);
[2]	3359
[284]	3360	$limst = max($st,$aScale->iStartDate);
	3361	$limen = min($en,$aScale->iEndDate);
[2]	3362
[284]	3363	$xt = round($aScale->TranslateDate($limst));
	3364	$xb = round($aScale->TranslateDate($limen));
	3365	$yt = round($aScale->TranslateVertPos($this->iVPos)-$vs-($aScale->GetVertSpacing()/2-$vs/2));
	3366	$yb = round($aScale->TranslateVertPos($this->iVPos)-($aScale->GetVertSpacing()/2-$vs/2));
	3367	$middle = round($yt+($yb-$yt)/2);
	3368	$this->StrokeActInfo($aImg,$aScale,$middle);
[2]	3369
[284]	3370	// CSIM for title
	3371	if( ! empty($this->title->csimtarget) ) {
	3372	$colwidth = $this->title->GetColWidth($aImg);
	3373	$colstarts=array();
	3374	$aScale->actinfo->GetColStart($aImg,$colstarts,true);
	3375	$n = min(count($colwidth),count($this->title->csimtarget));
	3376	for( $i=0; $i < $n; ++$i ) {
	3377	$title_xt = $colstarts[$i];
	3378	$title_xb = $title_xt + $colwidth[$i];
	3379	$coords = "$title_xt,$yt,$title_xb,$yt,$title_xb,$yb,$title_xt,$yb";
[2]	3380
[284]	3381	if( ! empty($this->title->csimtarget[$i]) ) {
	3382	$this->csimarea .= "<area shape=\"poly\" coords=\"$coords\" href=\"".$this->title->csimtarget[$i]."\"";
[2]	3383
[284]	3384	if( ! empty($this->title->csimwintarget[$i]) ) {
	3385	$this->csimarea .= "target=\"".$this->title->csimwintarget[$i]."\" ";
	3386	}
[2]	3387
[284]	3388	if( ! empty($this->title->csimalt[$i]) ) {
	3389	$tmp = $this->title->csimalt[$i];
	3390	$this->csimarea .= " title=\"$tmp\" alt=\"$tmp\" ";
	3391	}
	3392	$this->csimarea .= " />\n";
	3393	}
	3394	}
	3395	}
[2]	3396
[284]	3397	// Check if the bar is totally outside the current scale range
	3398	if( $en < $aScale->iStartDate \|\| $st > $aScale->iEndDate )
	3399	return;
[2]	3400
	3401
[284]	3402	// Remember the positions for the bar
	3403	$this->SetConstrainPos($xt,$yt,$xb,$yb);
[2]	3404
[284]	3405
	3406
	3407	$prect->ShowFrame(false);
	3408	$prect->SetBackground($this->iFillColor);
	3409	if( $this->iBreakStyle ) {
	3410	$aImg->SetColor($this->iFrameColor);
	3411	$olds = $aImg->SetLineStyle($this->iBreakLineStyle);
	3412	$oldw = $aImg->SetLineWeight($this->iBreakLineWeight);
	3413	$aImg->StyleLine($xt,$yt,$xb,$yt);
	3414	$aImg->StyleLine($xt,$yb,$xb,$yb);
	3415	$aImg->SetLineStyle($olds);
	3416	$aImg->SetLineWeight($oldw);
	3417	}
	3418	else {
	3419	if( $this->iShadow ) {
	3420	$aImg->SetColor($this->iFrameColor);
	3421	$aImg->ShadowRectangle($xt,$yt,$xb,$yb,$this->iFillColor,$this->iShadowWidth,$this->iShadowColor);
	3422	$prect->SetPos(new Rectangle($xt+1,$yt+1,$xb-$xt-$this->iShadowWidth-2,$yb-$yt-$this->iShadowWidth-2));
	3423	$prect->Stroke($aImg);
	3424	}
	3425	else {
	3426	$prect->SetPos(new Rectangle($xt,$yt,$xb-$xt+1,$yb-$yt+1));
	3427	$prect->Stroke($aImg);
	3428	$aImg->SetColor($this->iFrameColor);
	3429	$aImg->Rectangle($xt,$yt,$xb,$yb);
	3430	}
	3431	}
	3432	// CSIM for bar
	3433	if( ! empty($this->csimtarget) ) {
	3434
	3435	$coords = "$xt,$yt,$xb,$yt,$xb,$yb,$xt,$yb";
	3436	$this->csimarea .= "<area shape=\"poly\" coords=\"$coords\" href=\"".$this->csimtarget."\"";
	3437
	3438	if( !empty($this->csimwintarget) ) {
	3439	$this->csimarea .= " target=\"".$this->csimwintarget."\" ";
	3440	}
	3441
	3442	if( $this->csimalt != '' ) {
	3443	$tmp = $this->csimalt;
	3444	$this->csimarea .= " title=\"$tmp\" alt=\"$tmp\" ";
	3445	}
	3446	$this->csimarea .= " />\n";
	3447	}
	3448
	3449	// Draw progress bar inside activity bar
	3450	if( $this->progress->iProgress > 0 ) {
	3451
	3452	$xtp = $aScale->TranslateDate($st);
	3453	$xbp = $aScale->TranslateDate($en);
	3454	$len = ($xbp-$xtp)*$this->progress->iProgress;
	3455
	3456	$endpos = $xtp+$len;
	3457	if( $endpos > $xt ) {
	3458
	3459	// Take away the length of the progress that is not visible (before the start date)
	3460	$len -= ($xt-$xtp);
	3461
	3462	// Is the the progress bar visible after the start date?
	3463	if( $xtp < $xt )
	3464	$xtp = $xt;
	3465
	3466	// Make sure that the progess bar doesn't extend over the end date
	3467	if( $xtp+$len-1 > $xb )
	3468	$len = $xb - $xtp ;
	3469
	3470	$prog = $factory->Create($this->progress->iPattern,$this->progress->iColor);
	3471	$prog->SetDensity($this->progress->iDensity);
	3472	$prog->SetBackground($this->progress->iFillColor);
	3473	$barheight = ($yb-$yt+1);
	3474	if( $this->iShadow )
	3475	$barheight -= $this->iShadowWidth;
	3476	$progressheight = floor($barheight*$this->progress->iHeight);
	3477	$marg = ceil(($barheight-$progressheight)/2);
	3478	$pos = new Rectangle($xtp,$yt + $marg, $len,$barheight-2*$marg);
	3479	$prog->SetPos($pos);
	3480	$prog->Stroke($aImg);
	3481	}
	3482	}
	3483
	3484	// We don't plot the end mark if the bar has been capped
	3485	if( $limst == $st ) {
	3486	$y = $middle;
	3487	// We treat the RIGHT and LEFT triangle mark a little bi
	3488	// special so that these marks are placed right under the
	3489	// bar.
	3490	if( $this->leftMark->GetType() == MARK_LEFTTRIANGLE ) {
	3491	$y = $yb ;
	3492	}
	3493	$this->leftMark->Stroke($aImg,$xt,$y);
	3494	}
	3495	if( $limen == $en ) {
	3496	$y = $middle;
	3497	// We treat the RIGHT and LEFT triangle mark a little bi
	3498	// special so that these marks are placed right under the
	3499	// bar.
	3500	if( $this->rightMark->GetType() == MARK_RIGHTTRIANGLE ) {
	3501	$y = $yb ;
	3502	}
	3503	$this->rightMark->Stroke($aImg,$xb,$y);
	3504
	3505	$margin = $this->iCaptionMargin;
	3506	if( $this->rightMark->show )
	3507	$margin += $this->rightMark->GetWidth();
	3508	$this->caption->Stroke($aImg,$xb+$margin,$middle);
	3509	}
[2]	3510	}
	3511	}
	3512
	3513	//===================================================
	3514	// CLASS MileStone
	3515	// Responsible for formatting individual milestones
	3516	//===================================================
	3517	class MileStone extends GanttPlotObject {
	3518	public $mark;
[284]	3519
	3520	//---------------
	3521	// CONSTRUCTOR
	3522	function __construct($aVPos,$aLabel,$aDate,$aCaption="") {
	3523	GanttPlotObject::__construct();
	3524	$this->caption->Set($aCaption);
	3525	$this->caption->Align("left","center");
	3526	$this->caption->SetFont(FF_FONT1,FS_BOLD);
	3527	$this->title->Set($aLabel);
	3528	$this->title->SetColor("darkred");
	3529	$this->mark = new PlotMark();
	3530	$this->mark->SetWidth(10);
	3531	$this->mark->SetType(MARK_DIAMOND);
	3532	$this->mark->SetColor("darkred");
	3533	$this->mark->SetFillColor("darkred");
	3534	$this->iVPos = $aVPos;
	3535	$this->iStart = $aDate;
[2]	3536	}
[284]	3537
	3538	//---------------
	3539	// PUBLIC METHODS
	3540
[2]	3541	function GetAbsHeight($aImg) {
[284]	3542	return max($this->title->GetHeight($aImg),$this->mark->GetWidth());
[2]	3543	}
[284]	3544
[2]	3545	function Stroke($aImg,$aScale) {
[284]	3546	// Put the mark in the middle at the middle of the day
	3547	$d = $aScale->NormalizeDate($this->iStart)+SECPERDAY/2;
	3548	$x = $aScale->TranslateDate($d);
	3549	$y = $aScale->TranslateVertPos($this->iVPos)-($aScale->GetVertSpacing()/2);
[2]	3550
[284]	3551	$this->StrokeActInfo($aImg,$aScale,$y);
[2]	3552
[284]	3553	// CSIM for title
	3554	if( ! empty($this->title->csimtarget) ) {
[2]	3555
[284]	3556	$yt = round($y - $this->title->GetHeight($aImg)/2);
	3557	$yb = round($y + $this->title->GetHeight($aImg)/2);
[2]	3558
[284]	3559	$colwidth = $this->title->GetColWidth($aImg);
	3560	$colstarts=array();
	3561	$aScale->actinfo->GetColStart($aImg,$colstarts,true);
	3562	$n = min(count($colwidth),count($this->title->csimtarget));
	3563	for( $i=0; $i < $n; ++$i ) {
	3564	$title_xt = $colstarts[$i];
	3565	$title_xb = $title_xt + $colwidth[$i];
	3566	$coords = "$title_xt,$yt,$title_xb,$yt,$title_xb,$yb,$title_xt,$yb";
[2]	3567
[284]	3568	if( !empty($this->title->csimtarget[$i]) ) {
[2]	3569
[284]	3570	$this->csimarea .= "<area shape=\"poly\" coords=\"$coords\" href=\"".$this->title->csimtarget[$i]."\"";
	3571
	3572	if( !empty($this->title->csimwintarget[$i]) ) {
	3573	$this->csimarea .= "target=\"".$this->title->csimwintarget[$i]."\"";
	3574	}
	3575
	3576	if( ! empty($this->title->csimalt[$i]) ) {
	3577	$tmp = $this->title->csimalt[$i];
	3578	$this->csimarea .= " title=\"$tmp\" alt=\"$tmp\" ";
	3579	}
	3580	$this->csimarea .= " />\n";
	3581	}
	3582	}
	3583	}
	3584
	3585	if( $d < $aScale->iStartDate \|\| $d > $aScale->iEndDate )
	3586	return;
	3587
	3588	// Remember the coordinates for any constrains linking to
	3589	// this milestone
	3590	$w = $this->mark->GetWidth()/2;
	3591	$this->SetConstrainPos($x,round($y-$w),$x,round($y+$w));
	3592
	3593	// Setup CSIM
	3594	if( $this->csimtarget != '' ) {
	3595	$this->mark->SetCSIMTarget( $this->csimtarget );
	3596	$this->mark->SetCSIMAlt( $this->csimalt );
	3597	}
	3598
	3599	$this->mark->Stroke($aImg,$x,$y);
	3600	$this->caption->Stroke($aImg,$x+$this->mark->width/2+$this->iCaptionMargin,$y);
	3601
	3602	$this->csimarea .= $this->mark->GetCSIMAreas();
[2]	3603	}
	3604	}
	3605
	3606
	3607	//===================================================
	3608	// CLASS GanttVLine
	3609	// Responsible for formatting individual milestones
	3610	//===================================================
	3611
	3612	class TextPropertyBelow extends TextProperty {
[284]	3613	function __construct($aTxt='') {
	3614	parent::__construct($aTxt);
[2]	3615	}
	3616
	3617	function GetColWidth($aImg,$aMargin=0) {
[284]	3618	// Since we are not stroking the title in the columns
	3619	// but rather under the graph we want this to return 0.
	3620	return array(0);
[2]	3621	}
	3622	}
	3623
	3624	class GanttVLine extends GanttPlotObject {
	3625
[284]	3626	private $iLine,$title_margin=3, $iDayOffset=0.5;
	3627	private $iStartRow = -1, $iEndRow = -1;
	3628
	3629	//---------------
	3630	// CONSTRUCTOR
	3631	function __construct($aDate,$aTitle="",$aColor="darkred",$aWeight=2,$aStyle="solid") {
	3632	GanttPlotObject::__construct();
	3633	$this->iLine = new LineProperty();
	3634	$this->iLine->SetColor($aColor);
	3635	$this->iLine->SetWeight($aWeight);
	3636	$this->iLine->SetStyle($aStyle);
	3637	$this->iStart = $aDate;
	3638	$this->title = new TextPropertyBelow();
	3639	$this->title->Set($aTitle);
[2]	3640	}
	3641
[284]	3642	//---------------
	3643	// PUBLIC METHODS
[2]	3644
[284]	3645	// Set start and end rows for the VLine. By default the entire heigh of the
	3646	// Gantt chart is used
	3647	function SetRowSpan($aStart, $aEnd=-1) {
	3648	$this->iStartRow = $aStart;
	3649	$this->iEndRow = $aEnd;
	3650	}
	3651
[2]	3652	function SetDayOffset($aOff=0.5) {
[284]	3653	if( $aOff < 0.0 \|\| $aOff > 1.0 ) {
	3654	JpGraphError::RaiseL(6029);
	3655	//("Offset for vertical line must be in range [0,1]");
	3656	}
	3657	$this->iDayOffset = $aOff;
[2]	3658	}
[284]	3659
[2]	3660	function SetTitleMargin($aMarg) {
[284]	3661	$this->title_margin = $aMarg;
[2]	3662	}
[284]	3663
	3664	function SetWeight($aWeight) {
	3665	$this->iLine->SetWeight($aWeight);
	3666	}
	3667
[2]	3668	function Stroke($aImg,$aScale) {
[284]	3669	$d = $aScale->NormalizeDate($this->iStart);
	3670	if( $d < $aScale->iStartDate \|\| $d > $aScale->iEndDate )
	3671	return;
	3672	if($this->iDayOffset != 0.0)
	3673	$d += 246060*$this->iDayOffset;
	3674	$x = $aScale->TranslateDate($d);//d=1006858800,
	3675
	3676	if( $this->iStartRow > -1 ) {
	3677	$y1 = $aScale->TranslateVertPos($this->iStartRow,true) ;
	3678	}
	3679	else {
	3680	$y1 = $aScale->iVertHeaderSize+$aImg->top_margin;
	3681	}
	3682
	3683	if( $this->iEndRow > -1 ) {
	3684	$y2 = $aScale->TranslateVertPos($this->iEndRow);
	3685	}
	3686	else {
	3687	$y2 = $aImg->height - $aImg->bottom_margin;
	3688	}
	3689
	3690	$this->iLine->Stroke($aImg,$x,$y1,$x,$y2);
	3691	$this->title->Align("center","top");
	3692	$this->title->Stroke($aImg,$x,$y2+$this->title_margin);
	3693	}
[2]	3694	}
	3695
	3696	//===================================================
	3697	// CLASS LinkArrow
[284]	3698	// Handles the drawing of a an arrow
[2]	3699	//===================================================
	3700	class LinkArrow {
	3701	private $ix,$iy;
	3702	private $isizespec = array(
[284]	3703	array(2,3),array(3,5),array(3,8),array(6,15),array(8,22));
[2]	3704	private $iDirection=ARROW_DOWN,$iType=ARROWT_SOLID,$iSize=ARROW_S2;
	3705	private $iColor='black';
	3706
[284]	3707	function __construct($x,$y,$aDirection,$aType=ARROWT_SOLID,$aSize=ARROW_S2) {
	3708	$this->iDirection = $aDirection;
	3709	$this->iType = $aType;
	3710	$this->iSize = $aSize;
	3711	$this->ix = $x;
	3712	$this->iy = $y;
[2]	3713	}
[284]	3714
[2]	3715	function SetColor($aColor) {
[284]	3716	$this->iColor = $aColor;
[2]	3717	}
	3718
	3719	function SetSize($aSize) {
[284]	3720	$this->iSize = $aSize;
[2]	3721	}
	3722
	3723	function SetType($aType) {
[284]	3724	$this->iType = $aType;
[2]	3725	}
	3726
	3727	function Stroke($aImg) {
[284]	3728	list($dx,$dy) = $this->isizespec[$this->iSize];
	3729	$x = $this->ix;
	3730	$y = $this->iy;
	3731	switch ( $this->iDirection ) {
	3732	case ARROW_DOWN:
	3733	$c = array($x,$y,$x-$dx,$y-$dy,$x+$dx,$y-$dy,$x,$y);
	3734	break;
	3735	case ARROW_UP:
	3736	$c = array($x,$y,$x-$dx,$y+$dy,$x+$dx,$y+$dy,$x,$y);
	3737	break;
	3738	case ARROW_LEFT:
	3739	$c = array($x,$y,$x+$dy,$y-$dx,$x+$dy,$y+$dx,$x,$y);
	3740	break;
	3741	case ARROW_RIGHT:
	3742	$c = array($x,$y,$x-$dy,$y-$dx,$x-$dy,$y+$dx,$x,$y);
	3743	break;
	3744	default:
	3745	JpGraphError::RaiseL(6030);
	3746	//('Unknown arrow direction for link.');
	3747	die();
	3748	break;
	3749	}
	3750	$aImg->SetColor($this->iColor);
	3751	switch( $this->iType ) {
	3752	case ARROWT_SOLID:
	3753	$aImg->FilledPolygon($c);
	3754	break;
	3755	case ARROWT_OPEN:
	3756	$aImg->Polygon($c);
	3757	break;
	3758	default:
	3759	JpGraphError::RaiseL(6031);
	3760	//('Unknown arrow type for link.');
	3761	die();
	3762	break;
	3763	}
[2]	3764	}
	3765	}
	3766
	3767	//===================================================
	3768	// CLASS GanttLink
	3769	// Handles the drawing of a link line between 2 points
	3770	//===================================================
	3771
	3772	class GanttLink {
	3773	private $ix1,$ix2,$iy1,$iy2;
	3774	private $iPathType=2,$iPathExtend=15;
	3775	private $iColor='black',$iWeight=1;
	3776	private $iArrowSize=ARROW_S2,$iArrowType=ARROWT_SOLID;
	3777
[284]	3778	function __construct($x1=0,$y1=0,$x2=0,$y2=0) {
	3779	$this->ix1 = $x1;
	3780	$this->ix2 = $x2;
	3781	$this->iy1 = $y1;
	3782	$this->iy2 = $y2;
[2]	3783	}
	3784
	3785	function SetPos($x1,$y1,$x2,$y2) {
[284]	3786	$this->ix1 = $x1;
	3787	$this->ix2 = $x2;
	3788	$this->iy1 = $y1;
	3789	$this->iy2 = $y2;
[2]	3790	}
	3791
	3792	function SetPath($aPath) {
[284]	3793	$this->iPathType = $aPath;
[2]	3794	}
	3795
	3796	function SetColor($aColor) {
[284]	3797	$this->iColor = $aColor;
[2]	3798	}
	3799
	3800	function SetArrow($aSize,$aType=ARROWT_SOLID) {
[284]	3801	$this->iArrowSize = $aSize;
	3802	$this->iArrowType = $aType;
[2]	3803	}
[284]	3804
[2]	3805	function SetWeight($aWeight) {
[284]	3806	$this->iWeight = $aWeight;
[2]	3807	}
	3808
	3809	function Stroke($aImg) {
[284]	3810	// The way the path for the arrow is constructed is partly based
	3811	// on some heuristics. This is not an exact science but draws the
	3812	// path in a way that, for me, makes esthetic sence. For example
	3813	// if the start and end activities are very close we make a small
	3814	// detour to endter the target horixontally. If there are more
	3815	// space between axctivities then no suh detour is made and the
	3816	// target is "hit" directly vertical. I have tried to keep this
	3817	// simple. no doubt this could become almost infinitive complex
	3818	// and have some real AI. Feel free to modify this.
	3819	// This will no-doubt be tweaked as times go by. One design aim
	3820	// is to avoid having the user choose what types of arrow
	3821	// he wants.
[2]	3822
[284]	3823	// The arrow is drawn between (x1,y1) to (x2,y2)
	3824	$x1 = $this->ix1 ;
	3825	$x2 = $this->ix2 ;
	3826	$y1 = $this->iy1 ;
	3827	$y2 = $this->iy2 ;
[2]	3828
[284]	3829	// Depending on if the target is below or above we have to
	3830	// handle thi different.
	3831	if( $y2 > $y1 ) {
	3832	$arrowtype = ARROW_DOWN;
	3833	$midy = round(($y2-$y1)/2+$y1);
	3834	if( $x2 > $x1 ) {
	3835	switch ( $this->iPathType ) {
	3836	case 0:
	3837	$c = array($x1,$y1,$x1,$midy,$x2,$midy,$x2,$y2);
	3838	break;
	3839	case 1:
	3840	case 2:
	3841	case 3:
	3842	$c = array($x1,$y1,$x2,$y1,$x2,$y2);
	3843	break;
	3844	default:
	3845	JpGraphError::RaiseL(6032,$this->iPathType);
	3846	//('Internal error: Unknown path type (='.$this->iPathType .') specified for link.');
	3847	exit(1);
	3848	break;
	3849	}
	3850	}
	3851	else {
	3852	switch ( $this->iPathType ) {
	3853	case 0:
	3854	case 1:
	3855	$c = array($x1,$y1,$x1,$midy,$x2,$midy,$x2,$y2);
	3856	break;
	3857	case 2:
	3858	// Always extend out horizontally a bit from the first point
	3859	// If we draw a link back in time (end to start) and the bars
	3860	// are very close we also change the path so it comes in from
	3861	// the left on the activity
	3862	$c = array($x1,$y1,$x1+$this->iPathExtend,$y1,
	3863	$x1+$this->iPathExtend,$midy,
	3864	$x2,$midy,$x2,$y2);
	3865	break;
	3866	case 3:
	3867	if( $y2-$midy < 6 ) {
	3868	$c = array($x1,$y1,$x1,$midy,
	3869	$x2-$this->iPathExtend,$midy,
	3870	$x2-$this->iPathExtend,$y2,
	3871	$x2,$y2);
	3872	$arrowtype = ARROW_RIGHT;
	3873	}
	3874	else {
	3875	$c = array($x1,$y1,$x1,$midy,$x2,$midy,$x2,$y2);
	3876	}
	3877	break;
	3878	default:
	3879	JpGraphError::RaiseL(6032,$this->iPathType);
	3880	//('Internal error: Unknown path type specified for link.');
	3881	exit(1);
	3882	break;
	3883	}
	3884	}
	3885	$arrow = new LinkArrow($x2,$y2,$arrowtype);
	3886	}
	3887	else {
	3888	// Y2 < Y1
	3889	$arrowtype = ARROW_UP;
	3890	$midy = round(($y1-$y2)/2+$y2);
	3891	if( $x2 > $x1 ) {
	3892	switch ( $this->iPathType ) {
	3893	case 0:
	3894	case 1:
	3895	$c = array($x1,$y1,$x1,$midy,$x2,$midy,$x2,$y2);
	3896	break;
	3897	case 3:
	3898	if( $midy-$y2 < 8 ) {
	3899	$arrowtype = ARROW_RIGHT;
	3900	$c = array($x1,$y1,$x1,$y2,$x2,$y2);
	3901	}
	3902	else {
	3903	$c = array($x1,$y1,$x1,$midy,$x2,$midy,$x2,$y2);
	3904	}
	3905	break;
	3906	default:
	3907	JpGraphError::RaiseL(6032,$this->iPathType);
	3908	//('Internal error: Unknown path type specified for link.');
	3909	break;
	3910	}
	3911	}
	3912	else {
	3913	switch ( $this->iPathType ) {
	3914	case 0:
	3915	case 1:
	3916	$c = array($x1,$y1,$x1,$midy,$x2,$midy,$x2,$y2);
	3917	break;
	3918	case 2:
	3919	// Always extend out horizontally a bit from the first point
	3920	$c = array($x1,$y1,$x1+$this->iPathExtend,$y1,
	3921	$x1+$this->iPathExtend,$midy,
	3922	$x2,$midy,$x2,$y2);
	3923	break;
	3924	case 3:
	3925	if( $midy-$y2 < 16 ) {
	3926	$arrowtype = ARROW_RIGHT;
	3927	$c = array($x1,$y1,$x1,$midy,$x2-$this->iPathExtend,$midy,
	3928	$x2-$this->iPathExtend,$y2,
	3929	$x2,$y2);
	3930	}
	3931	else {
	3932	$c = array($x1,$y1,$x1,$midy,$x2,$midy,$x2,$y2);
	3933	}
	3934	break;
	3935	default:
	3936	JpGraphError::RaiseL(6032,$this->iPathType);
	3937	//('Internal error: Unknown path type specified for link.');
	3938	break;
	3939	}
	3940	}
	3941	$arrow = new LinkArrow($x2,$y2,$arrowtype);
	3942	}
	3943	$aImg->SetColor($this->iColor);
	3944	$aImg->SetLineWeight($this->iWeight);
	3945	$aImg->Polygon($c);
	3946	$aImg->SetLineWeight(1);
	3947	$arrow->SetColor($this->iColor);
	3948	$arrow->SetSize($this->iArrowSize);
	3949	$arrow->SetType($this->iArrowType);
	3950	$arrow->Stroke($aImg);
[2]	3951	}
	3952	}
	3953
	3954	// <EOF>
	3955	?>

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source: trunk/client/modules/Elezioni/grafici/jpgraph_gantt.php@ 388

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