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jpgraph_gantt.php@ 429

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1	<?php
2	/*=======================================================================
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	*/
11
12	require_once('jpgraph_plotband.php');
13	require_once('jpgraph_iconplot.php');
14	require_once('jpgraph_plotmark.inc.php');
15
16	// Maximum size for Automatic Gantt chart
17	define('MAX_GANTTIMG_SIZE_W',8000);
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
29	define("GANTT_RDIAG",BAND_RDIAG); // Right diagonal lines
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
42	// You should use the proper locale strings directly
43	// from now on.
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
52	define("MINUTESTYLE_MM",0); // 15
53	define("MINUTESTYLE_CUSTOM",2); // Custom format
54
55
56	// Style for hour header
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
62
63	// Style for day header
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"
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) {
130	$aResult = array();
131	for ($iCount = $iStart; $iCount < $iLen + $iStart; $iCount++) {
132	$aResult[$iCount] = $vValue;
133	}
134	return $aResult;
135	}
136	}
137
138	//===================================================
139	// CLASS GanttActivityInfo
140	// Description:
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
155	function __construct() {
156	$this->vgrid = new LineProperty();
157	}
158
159	function Hide($aF=true) {
160	$this->iShow=!$aF;
161	}
162
163	function Show($aF=true) {
164	$this->iShow=$aF;
165	}
166
167	// Specify font
168	function SetFont($aFFamily,$aFStyle=FS_NORMAL,$aFSize=10) {
169	$this->iFFamily = $aFFamily;
170	$this->iFStyle = $aFStyle;
171	$this->iFSize = $aFSize;
172	}
173
174	function SetStyle($aStyle) {
175	$this->iStyle = $aStyle;
176	}
177
178	function SetColumnMargin($aLeft,$aRight) {
179	$this->iLeftColMargin = $aLeft;
180	$this->iRightColMargin = $aRight;
181	}
182
183	function SetFontColor($aFontColor) {
184	$this->iFontColor = $aFontColor;
185	}
186
187	function SetColor($aColor) {
188	$this->iColor = $aColor;
189	}
190
191	function SetBackgroundColor($aColor) {
192	$this->iBackgroundColor = $aColor;
193	}
194
195	function SetColTitles($aTitles,$aWidth=null) {
196	$this->iTitles = $aTitles;
197	$this->iWidth = $aWidth;
198	}
199
200	function SetMinColWidth($aWidths) {
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	}
212	}
213
214	function GetWidth($aImg) {
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;
234	$txt='';
235	return $w;
236	}
237
238	function GetColStart($aImg,&$aStart,$aAddLeftMargin=false) {
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[$i-1];
244	}
245	}
246
247	// Adjust headers left, right or centered
248	function SetHeaderAlign($aAlign) {
249	$this->iHeaderAlign=$aAlign;
250	}
251
252	function Stroke($aImg,$aXLeft,$aYTop,$aXRight,$aYBottom,$aUseTextHeight=false) {
253
254	if( !$this->iShow ) return;
255
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);
261
262	if( $n == 0 )
263	return;
264
265	$x = $aXLeft;
266	$h = $this->iHeight;
267	$yTop = $aUseTextHeight ? $aYBottom-$h-$this->iTopColMargin-$this->iBottomColMargin : $aYTop ;
268
269	if( $h < 0 ) {
270	JpGraphError::RaiseL(6001);
271	//('Internal error. Height for ActivityTitles is < 0');
272	}
273
274	$aImg->SetLineWeight(1);
275	// Set background color
276	$aImg->SetColor($this->iBackgroundColor);
277	$aImg->FilledRectangle($aXLeft,$yTop,$aXRight,$aYBottom-1);
278
279	if( $this->iStyle == 1 ) {
280	// Make a 3D effect
281	$aImg->SetColor('white');
282	$aImg->Line($aXLeft,$yTop+1,$aXRight,$yTop+1);
283	}
284
285	for($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	}
322	}
323	}
324
325
326	//===================================================
327	// CLASS GanttGraph
328	// Description: Main class to handle gantt graphs
329	//===================================================
330	class GanttGraph extends Graph {
331	public $scale; // Public accessible
332	public $hgrid=null;
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
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;
341	private $iZoomFactor = 1.0;
342	//---------------
343	// CONSTRUCTOR
344	// Create a new gantt graph
345	function __construct($aWidth=0,$aHeight=0,$aCachedName="",$aTimeOut=0,$aInline=true) {
346
347	// Backward compatibility
348	if( $aWidth == -1 ) $aWidth=0;
349	if( $aHeight == -1 ) $aHeight=0;
350
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);
357
358	// Default margins
359	$this->img->SetMargin(15,17,25,15);
360
361	$this->hgrid = new HorizontalGridLine();
362
363	$this->scale->ShowHeaders(GANTT_HWEEK\|GANTT_HDAY);
364	$this->SetBox();
365	}
366
367	//---------------
368	// PUBLIC METHODS
369
370	//
371
372	function SetSimpleFont($aFont,$aSize) {
373	$this->iSimpleFont = $aFont;
374	$this->iSimpleFontSize = $aSize;
375	}
376
377	function SetSimpleStyle($aBand,$aColor,$aBkgColor) {
378	$this->iSimpleStyle = $aBand;
379	$this->iSimpleColor = $aColor;
380	$this->iSimpleBkgColor = $aBkgColor;
381	}
382
383	// A utility function to help create basic Gantt charts
384	function CreateSimple($data,$constrains=array(),$progress=array()) {
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');
398
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');
404
405	$a->SetPattern(BAND_SOLID,'black');
406	$csimpos = 6;
407	break;
408
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	}
425
426	// Check if this activity have a progress bar
427	$n = count($progress);
428	for( $j=0; $j < $n; ++$j ) {
429
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	}
472	}
473
474	// Set user specified scale zoom factor when auto sizing is used
475	function SetZoomFactor($aZoom) {
476	$this->iZoomFactor = $aZoom;
477	}
478
479
480	// Set what headers should be shown
481	function ShowHeaders($aFlg) {
482	$this->scale->ShowHeaders($aFlg);
483	}
484
485	// Specify the fraction of the font height that should be added
486	// as vertical margin
487	function SetLabelVMarginFactor($aVal) {
488	$this->iLabelVMarginFactor = $aVal;
489	}
490
491	// Synonym to the method above
492	function SetVMarginFactor($aVal) {
493	$this->iLabelVMarginFactor = $aVal;
494	}
495
496
497	// Add a new Gantt object
498	function Add($aObject) {
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	}
524	}
525
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,$y);
540	}
541	}
542	}
543
544	// Override inherit method from Graph and give a warning message
545	function SetScale($aAxisType,$aYMin=1,$aYMax=1,$aXMin=1,$aXMax=1) {
546	JpGraphError::RaiseL(6005);
547	//("SetScale() is not meaningfull with Gantt charts.");
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) {
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);
560	}
561
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() {
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;
583	}
584
585	// Get the maximum height of the titles for the bars
586	function GetMaxLabelHeight() {
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;
599	}
600
601	function GetMaxBarAbsHeight() {
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;
611	}
612
613	// Get the maximum used line number (vertical position) for bars
614	function GetBarMaxLineNumber() {
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;
624	}
625
626	// Get the minumum and maximum used dates for all bars
627	function GetBarMinMax() {
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	}
636
637	$max=$this->scale->NormalizeDate($this->iObj[$start]->GetMaxDate());
638	$min=$this->scale->NormalizeDate($this->iObj[$start]->GetMinDate());
639
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);
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
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	}
670
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;
677
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	}
686
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);
691
692	// Add the height of the scale titles
693	$h=$this->scale->GetHeaderHeight();
694	$height += $h;
695
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 :
745	$txt = "Mon 23/6";
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 :
754	$txt = "23/6";
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	}
775
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	}
801
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	}
817
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	}
827
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.
832
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	}
846
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 : $fw ;
851	}
852
853	// If we display week we must make sure that 7*$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	}
868
869	$ww = $fsw*$this->scale->week->GetFontWidth($this->img);
870	if( 7*$fw < $ww ) {
871	$fw = ceil($ww/7);
872	}
873	}
874
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	}
889
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
894
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));
899
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	}
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() {
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 $w;
948	}
949
950	// Stroke the gantt chart
951	function Stroke($aStrokeFileName="") {
952
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);
961
962	// Should we autoscale dates?
963
964	if( !$this->scale->IsRangeSet() ) {
965	list($min,$max) = $this->GetBarMinMax();
966	$this->scale->SetRange($min,$max);
967	}
968
969	$this->scale->AdjustStartEndDay();
970
971	// Check if we should autoscale the image
972	$this->AutoSize();
973
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;
984
985	$maxwidth=max($this->scale->actinfo->GetWidth($this->img),
986	max($this->GetMaxLabelWidth(),
987	$this->scale->tableTitle->GetWidth($this->img)));
988
989	$this->scale->SetLabelWidth($maxwidth+$this->scale->divider->iWeight);//*(1+$this->iLabelHMarginFactor));
990
991	if( !$_csim ) {
992	$this->StrokePlotArea();
993	if( $this->iIconDepth == DEPTH_BACK ) {
994	$this->StrokeIcons();
995	}
996	}
997
998	$this->scale->Stroke();
999
1000	if( !$_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	}
1006
1007	// Stroke Grid line
1008	$this->hgrid->Stroke($this->img,$this->scale);
1009
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	}
1015
1016	$this->StrokeTitles();
1017
1018	if( !$_csim ) {
1019	$this->StrokeConstrains();
1020	$this->footer->Stroke($this->img);
1021
1022
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	}
1056	}
1057
1058	function StrokeConstrains() {
1059	$n = count($this->iObj);
1060
1061	// Stroke all constrains
1062	for($i=0; $i < $n; ++$i) {
1063
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;
1067
1068	$numConstrains = count($this->iObj[$i]->constraints);
1069
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;
1074
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	}
1130
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	}
1140	}
1141
1142	function GetCSIMAreas() {
1143	if( !$this->iHasStroked )
1144	$this->Stroke(_CSIM_SPECIALFILE);
1145
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;
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() {
1179	return $this->iLen ;
1180	}
1181
1182	function GetImg($aIdx) {
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]));
1188	}
1189
1190	function __construct() {
1191	//==========================================================
1192	// warning.png
1193	//==========================================================
1194	$this->iBuiltinIcon[0][0]= 1043 ;
1195	$this->iBuiltinIcon[0][1]=
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1202	'/ynPidQw/LrBiPBcS/yFCT95DvB2BWAy4575PaQbQKW+tPd3GCItu2odKI++YxiKu0d26oWmAD7paZU/rLz37VqIijD2YbnzNBBE'.
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1210
1211	//==========================================================
1212	// edit.png
1213	//==========================================================
1214	$this->iBuiltinIcon[1][0]= 959 ;
1215	$this->iBuiltinIcon[1][1]=
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1217	'AAALEAAACxABrSO9dQAAAAd0SU1FB9AKDAwbIEXOA6AAAAM8SURBVHicpdRPaBxlHMbx76ZvsmOTmm1dsEqQSIIsEmGVBAQjivEQ'.
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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=' ;
1229
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' ;
1244
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' ;
1265
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=' ;
1281
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==' ;
1295
1296	//==========================================================
1297	// mag.png
1298	//==========================================================
1299	$this->iBuiltinIcon[6][0]= 1415 ;
1300	$this->iBuiltinIcon[6][1]=
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1305	'nmY3O7ZtByA1NVUCkGWZweD1eklJScESTbqxuIjrd+/x6uIl5M19hSy7nfGOeUxf+g7VjU1sKi7C4/GYsiyz7tAJAD4/cRaA1tZW'.
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1308	'OrphEjJMNElCHxKDEjaobmvlfo/Krj27CQQCJsCGJW8C0KXqAMxMiosQA8hZWcTFx9OsaniDKh1qmG7VoFsL0x0K06kbeAMhWpRe'.
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1311	'gTsSccPDWlQstClBGjr9eHpVWvUQncEwdYEedF8noQ4vmYmpZMTH0nTvDn25vLbrNmu7bvfnsYEbAMnhcPDgwQPzUo2LJusw/mhp'.
1312	'QwlHNO0KBAnoIfxtrcQMT2De1Mm891wyUzNlUlJSpIyMDBobGzlzr5rFM/Koq6vrP8ASGxsLwPmKcvIShjPGZiPOakE3VFB8hHwd'.
1313	'vJAxhrk5L7Ly+RQuH/sWgPdXrwFg/6HDFBUsIj09nehfbAWwPWOT9n5RYhqGwarNWxkRM5TRCfF4U1PQsDDJFk9uYhwXvzvKjm3b'.
1314	'KSsro3DJInNW5RXp7u2bAKSlpeH1esnPz6eqqgqLpmmcr3Fht9ulfaV7mZk1Bs+lM6T1djM9fhg5egDPpTNMy5TZsW07kydPYdWM'.
1315	'aXx96ixOp9O8cfUa80srmDpjOgAulytiQqZpMnvObLbt/JTtHxXj9/tRVdU0DGOAufRpevPDTeac0hJyc3NxOOawfv161lVWS6eX'.
1316	'z+9/UOCxu1VWVvaTRGv16NFfjB2bNeAQp9NpTpmSM4DcbrdL0WsGDKLRR+52uwe1yP8jb2lpYfikyY9t80n03UCWZeaXVjw1f+zs'.
1317	'Oen+/d+pqanhzp2fKSsrw+l0mi6XiyPl5ZGITdN8fAVJwjRNJEmi1qfw1kw7siyTnJxMe3s71dXV3GpoZO64DG41NPJylvxU5D/e'.
1318	'qJKsfWQD9IkaZ2RmUvr9aV4aGYcQgjfO3aWoYBF5eXm4ewIsu/CbdPz1aWb0/p1bNoOrQxlUiuiaFo3c3FyEEOx9+C9CCD6paaTW'.
1319	'p/TXyYkTJ0Xe59jf7QOyAKDWp/QXxcFQ61P4pT3ShBBcvnUHIQTjxmX19/8BCeVg+/GPpskAAAAASUVORK5CYII=' ;
1320
1321	//==========================================================
1322	// lock.png
1323	//==========================================================
1324	$this->iBuiltinIcon[7][0]= 963 ;
1325	$this->iBuiltinIcon[7][1]=
1326	'iVBORw0KGgoAAAANSUhEUgAAABYAAAAWCAYAAADEtGw7AAAABGdBTUEAALGPC/xhBQAAAAZiS0dEAAAAAAAA+UO7fwAAAAlwSFlz'.
1327	'AAALCwAACwsBbQSEtwAAAAd0SU1FB9AKAw0XDmwMOwIAAANASURBVHic7ZXfS1t3GMY/3+PprI7aisvo2YU6h6ATA8JW4rrlsF4U'.
1328	'qiAsF9mhl0N2cYTRy9G/wptAYWPD9iJtRy5asDe7cYFmyjaXOLaMImOrmkRrjL9yTmIS3120JybWQgfb3R74wuc8Lzw858vLOUpE'.
1329	'OK6pqSm2trbY39+nu7tbPHYch7m5OcLhMIA67kWj0aMQEWk6tm17rNm2LSIie3t7ksvlJJ1OSyqVkls3Z8SyLMnlcqTTaVKpFLdu'.
1330	'zmBZVj1HeY2VUti2TSQSQSml2bZdi0QirK2tMT09zerqKtlslqGhISYnJ4nHv2N+foFsNquOe9FotLlxOBwmk8lgWRbhcFgymYxY'.
1331	'liUi0mqaJoAuIi2macrdO7fFsizx3to0Te7euV1vrXtXEgqFmJmZYWVlhXK5LB4/U9kwDL784kYV0A3DYHd3m4sXRymXywKoRi8U'.
1332	'Ch01DgQCJBIJLMsiEAhIIpHw2uLz+eqtYrEYIqKZpimxWEyCwaCMjY01zYPBIJpXqVQqsby8TLVabWKA/v5+RkZGMAyDrq4ulFKH'.
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1339
1340	//==========================================================
1341	// stop.png
1342	//==========================================================
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1357
1358	//==========================================================
1359	// error.png
1360	//==========================================================
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1371
1372	//==========================================================
1373	// openfolder.png
1374	//==========================================================
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1405
1406	//==========================================================
1407	// folder.png
1408	//==========================================================
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1436
1437	//==========================================================
1438	// file_important.png
1439	//==========================================================
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1461	'cWIzPxlUpD+zugzIZtVk1d8znBAqRxgoQuVQgSJQ3h9C5QhDRYgjUILCAzlnEdsHYTKfMTEBcP7F54YUGVmc2GLlIn6ve6v0ahSt'.
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1463	'rogT6yFsOix3ftw7OwQhkvSU6CuinhCk0+kAkFoBazEEICHaHHiPVmU0gnUp4EAc1mYrF0EBVpwPi34VrBkwPxKk3W5ju/e5/c+d'.
1464	'bGUHIAIuydTIE5zfc5Wr4lJcahHnHTP3CVGm78DrgY38N+DEibp7dmYKdAQmBh1hjEFjis+9CTWYGK21H6PxPyOI0DobYwzZF/z7'.
1465	'7jadTvJtYG0kCD7lfwl49ijgT1gc0AH+dZSJA/xB+Mz/GSIvFoj/B7H1mAd8CO/zAAAAAElFTkSuQmCC' ;
1466
1467	$this->iLen = count($this->iBuiltinIcon);
1468	}
1469	}
1470
1471	//===================================================
1472	// Global cache for builtin images
1473	//===================================================
1474	$_gPredefIcons = new PredefIcons();
1475
1476	//===================================================
1477	// CLASS IconImage
1478	// Description: Holds properties for an icon image
1479	//===================================================
1480	class IconImage {
1481	private $iGDImage=null;
1482	private $iWidth,$iHeight;
1483	private $ixalign='left',$iyalign='center';
1484	private $iScale=1.0;
1485
1486	function __construct($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);
1502	}
1503
1504	function GetWidth() {
1505	return round($this->iScale*$this->iWidth);
1506	}
1507
1508	function GetHeight() {
1509	return round($this->iScale*$this->iHeight);
1510	}
1511
1512	function SetAlign($aX='left',$aY='center') {
1513	$this->ixalign = $aX;
1514	$this->iyalign = $aY;
1515	}
1516
1517	function Stroke($aImg,$x,$y) {
1518
1519	if( $this->ixalign == 'right' ) {
1520	$x -= $this->iWidth;
1521	}
1522	elseif( $this->ixalign == 'center' ) {
1523	$x -= round($this->iWidth/2*$this->iScale);
1524	}
1525
1526	if( $this->iyalign == 'bottom' ) {
1527	$y -= $this->iHeight;
1528	}
1529	elseif( $this->iyalign == 'center' ) {
1530	$y -= round($this->iHeight/2*$this->iScale);
1531	}
1532
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);
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;
1549	private $iFontArray=array();
1550	private $iColor="black";
1551	private $iText="";
1552	private $iHAlign="left",$iVAlign="bottom";
1553
1554	//---------------
1555	// CONSTRUCTOR
1556	function __construct($aTxt='') {
1557	$this->iText = $aTxt;
1558	}
1559
1560	//---------------
1561	// PUBLIC METHODS
1562	function Set($aTxt) {
1563	$this->iText = $aTxt;
1564	}
1565
1566	function SetCSIMTarget($aTarget,$aAltText='',$aWinTarget='') {
1567	if( is_string($aTarget) )
1568	$aTarget = array($aTarget);
1569	$this->csimtarget=$aTarget;
1570
1571	if( is_string($aWinTarget) )
1572	$aWinTarget = array($aWinTarget);
1573	$this->csimwintarget=$aWinTarget;
1574
1575	if( is_string($aAltText) )
1576	$aAltText = array($aAltText);
1577	$this->csimalt=$aAltText;
1578
1579	}
1580
1581	function SetCSIMAlt($aAltText) {
1582	if( is_string($aAltText) )
1583	$aAltText = array($aAltText);
1584	$this->csimalt=$aAltText;
1585	}
1586
1587	// Set text color
1588	function SetColor($aColor) {
1589	$this->iColor = $aColor;
1590	}
1591
1592	function HasTabs() {
1593	if( is_string($this->iText) ) {
1594	return substr_count($this->iText,"\t") > 0;
1595	}
1596	elseif( is_array($this->iText) ) {
1597	return false;
1598	}
1599	}
1600
1601	// Get number of tabs in string
1602	function GetNbrTabs() {
1603	if( is_string($this->iText) ) {
1604	return substr_count($this->iText,"\t") ;
1605	}
1606	else{
1607	return 0;
1608	}
1609	}
1610
1611	// Set alignment
1612	function Align($aHAlign,$aVAlign="bottom") {
1613	$this->iHAlign=$aHAlign;
1614	$this->iVAlign=$aVAlign;
1615	}
1616
1617	// Synonym
1618	function SetAlign($aHAlign,$aVAlign="bottom") {
1619	$this->iHAlign=$aHAlign;
1620	$this->iVAlign=$aVAlign;
1621	}
1622
1623	// Specify font
1624	function SetFont($aFFamily,$aFStyle=FS_NORMAL,$aFSize=10) {
1625	$this->iFFamily = $aFFamily;
1626	$this->iFStyle = $aFStyle;
1627	$this->iFSize = $aFSize;
1628	}
1629
1630	function SetColumnFonts($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 = $aFontArray;
1636	}
1637
1638
1639	function IsColumns() {
1640	return is_array($this->iText) ;
1641	}
1642
1643	// Get width of text. If text contains several columns separated by
1644	// tabs then return both the total width as well as an array with a
1645	// width for each column.
1646	function GetWidth($aImg,$aUseTabs=false,$aTabExtraMargin=1.1) {
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 $w;
1694	}
1695	else {
1696	JpGraphError::RaiseL(6012);
1697	}
1698	}
1699
1700	// for the case where we have multiple columns this function returns the width of each
1701	// column individually. If there is no columns just return the width of the single
1702	// column as an array of one
1703	function GetColWidth($aImg,$aMargin=0) {
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($aImg));
1730	}
1731	}
1732
1733	// Get total height of text
1734	function GetHeight($aImg) {
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 $maxheight;
1752	}
1753
1754	// Unhide/hide the text
1755	function Show($aShow=true) {
1756	$this->iShow=$aShow;
1757	}
1758
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) {
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	}
1824	}
1825	}
1826
1827	//===================================================
1828	// CLASS HeaderProperty
1829	// Description: Data encapsulating class to hold property
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
1844	//---------------
1845	// CONSTRUCTOR
1846	function __construct() {
1847	$this->grid = new LineProperty();
1848	}
1849
1850	//---------------
1851	// PUBLIC METHODS
1852	function Show($aShow=true) {
1853	$this->iShowLabels = $aShow;
1854	}
1855
1856	function SetIntervall($aInt) {
1857	$this->iIntervall = $aInt;
1858	}
1859
1860	function SetInterval($aInt) {
1861	$this->iIntervall = $aInt;
1862	}
1863
1864	function GetIntervall() {
1865	return $this->iIntervall ;
1866	}
1867
1868	function SetFont($aFFamily,$aFStyle=FS_NORMAL,$aFSize=10) {
1869	$this->iFFamily = $aFFamily;
1870	$this->iFStyle = $aFStyle;
1871	$this->iFSize = $aFSize;
1872	}
1873
1874	function SetFontColor($aColor) {
1875	$this->iTextColor = $aColor;
1876	}
1877
1878	function GetFontHeight($aImg) {
1879	$aImg->SetFont($this->iFFamily,$this->iFStyle,$this->iFSize);
1880	return $aImg->GetFontHeight();
1881	}
1882
1883	function GetFontWidth($aImg) {
1884	$aImg->SetFont($this->iFFamily,$this->iFStyle,$this->iFSize);
1885	return $aImg->GetFontWidth();
1886	}
1887
1888	function GetStrWidth($aImg,$aStr) {
1889	$aImg->SetFont($this->iFFamily,$this->iFStyle,$this->iFSize);
1890	return $aImg->GetTextWidth($aStr);
1891	}
1892
1893	function SetStyle($aStyle) {
1894	$this->iStyle = $aStyle;
1895	}
1896
1897	function SetBackgroundColor($aColor) {
1898	$this->iBackgroundColor=$aColor;
1899	}
1900
1901	function SetFrameWeight($aWeight) {
1902	$this->iFrameWeight=$aWeight;
1903	}
1904
1905	function SetFrameColor($aColor) {
1906	$this->iFrameColor=$aColor;
1907	}
1908
1909	// Only used by day scale
1910	function SetWeekendColor($aColor) {
1911	$this->iWeekendBackgroundColor=$aColor;
1912	}
1913
1914	// Only used by day scale
1915	function SetSundayFontColor($aColor) {
1916	$this->iSundayTextColor=$aColor;
1917	}
1918
1919	function SetTitleVertMargin($aMargin) {
1920	$this->iTitleVertMargin=$aMargin;
1921	}
1922
1923	function SetLabelFormatString($aStr) {
1924	$this->iLabelFormStr=$aStr;
1925	}
1926
1927	function SetFormatString($aStr) {
1928	$this->SetLabelFormatString($aStr);
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;
1950	public $iVertLines=-1;
1951	public $iVertHeaderSize=-1;
1952	// The width of the labels (defaults to the widest of all labels)
1953	private $iLabelWidth;
1954	// Out image to stroke the scale to
1955	private $iImg;
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;
1962	private $iWeekStart = 1; // Default to have weekends start on Monday
1963
1964	//---------------
1965	// CONSTRUCTOR
1966	function __construct($aImg) {
1967	$this->iImg = $aImg;
1968	$this->iDateLocale = new DateLocale();
1969
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");
1975
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");
1982
1983	$this->day = new HeaderProperty();
1984	$this->day->grid->SetColor("gray");
1985	$this->day->SetLabelFormatString('l');
1986
1987	$this->week = new HeaderProperty();
1988	$this->week->SetLabelFormatString("w%d");
1989	$this->week->SetFont(FF_FONT1);
1990
1991	$this->month = new HeaderProperty();
1992	$this->month->SetFont(FF_FONT1,FS_BOLD);
1993
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	$this->actinfo = new GanttActivityInfo();
2007	}
2008
2009	//---------------
2010	// PUBLIC METHODS
2011	// Specify what headers should be visible
2012	function ShowHeaders($aFlg) {
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);
2019
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	$this->day->grid->SetColor("black");
2027	}
2028	}
2029
2030	// Should the weekend background stretch all the way down in the plotarea
2031	function UseWeekendBackground($aShow) {
2032	$this->iUsePlotWeekendBackground = $aShow;
2033	}
2034
2035	// Have a range been specified?
2036	function IsRangeSet() {
2037	return $this->iStartDate!=-1 && $this->iEndDate!=-1;
2038	}
2039
2040	// Should the layout be from top or even?
2041	function SetVertLayout($aLayout) {
2042	$this->iVertLayout = $aLayout;
2043	}
2044
2045	// Which locale should be used?
2046	function SetDateLocale($aLocale) {
2047	$this->iDateLocale->Set($aLocale);
2048	}
2049
2050	// Number of days we are showing
2051	function GetNumberOfDays() {
2052	return round(($this->iEndDate-$this->iStartDate)/SECPERDAY);
2053	}
2054
2055	// The width of the actual plot area
2056	function GetPlotWidth() {
2057	$img=$this->iImg;
2058	return $img->width - $img->left_margin - $img->right_margin;
2059	}
2060
2061	// Specify the width of the titles(labels) for the activities
2062	// (This is by default set to the minimum width enought for the
2063	// widest title)
2064	function SetLabelWidth($aLabelWidth) {
2065	$this->iLabelWidth=$aLabelWidth;
2066	}
2067
2068	// Which day should the week start?
2069	// 0==Sun, 1==Monday, 2==Tuesday etc
2070	function SetWeekStart($aStartDay) {
2071	$this->iWeekStart = $aStartDay % 7;
2072
2073	//Recalculate the startday since this will change the week start
2074	$this->SetRange($this->iStartDate,$this->iEndDate);
2075	}
2076
2077	// Do we show min scale?
2078	function IsDisplayMinute() {
2079	return $this->minute->iShowLabels;
2080	}
2081
2082	// Do we show day scale?
2083	function IsDisplayHour() {
2084	return $this->hour->iShowLabels;
2085	}
2086
2087
2088	// Do we show day scale?
2089	function IsDisplayDay() {
2090	return $this->day->iShowLabels;
2091	}
2092
2093	// Do we show week scale?
2094	function IsDisplayWeek() {
2095	return $this->week->iShowLabels;
2096	}
2097
2098	// Do we show month scale?
2099	function IsDisplayMonth() {
2100	return $this->month->iShowLabels;
2101	}
2102
2103	// Do we show year scale?
2104	function IsDisplayYear() {
2105	return $this->year->iShowLabels;
2106	}
2107
2108	// Specify spacing (in percent of bar height) between activity bars
2109	function SetVertSpacing($aSpacing) {
2110	$this->iVertSpacing = $aSpacing;
2111	}
2112
2113	// Specify scale min and max date either as timestamp or as date strings
2114	// Always round to the nearest week boundary
2115	function SetRange($aMin,$aMax) {
2116	$this->iStartDate = $this->NormalizeDate($aMin);
2117	$this->iEndDate = $this->NormalizeDate($aMax);
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
2125	if( !($this->IsDisplayYear() \|\|$this->IsDisplayMonth() \|\| $this->IsDisplayWeek()) ) {
2126	// Don't adjust
2127	return;
2128	}
2129
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 = $adjdate;
2153	}
2154	}
2155
2156	// Specify background for the table title area (upper left corner of the table)
2157	function SetTableTitleBackground($aColor) {
2158	$this->iTableHeaderBackgroundColor = $aColor;
2159	}
2160
2161	///////////////////////////////////////
2162	// PRIVATE Methods
2163
2164	// Determine the height of all the scale headers combined
2165	function GetHeaderHeight() {
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 $height;
2193	}
2194
2195	// Get width (in pixels) for a single day
2196	function GetDayWidth() {
2197	return ($this->GetPlotWidth()-$this->iLabelWidth+1)/$this->GetNumberOfDays();
2198	}
2199
2200	// Get width (in pixels) for a single hour
2201	function GetHourWidth() {
2202	return $this->GetDayWidth() / 24 ;
2203	}
2204
2205	function GetMinuteWidth() {
2206	return $this->GetHourWidth() / 60 ;
2207	}
2208
2209	// Nuber of days in a year
2210	function GetNumDaysInYear($aYear) {
2211	if( $this->IsLeap($aYear) )
2212	return 366;
2213	else
2214	return 365;
2215	}
2216
2217	// Get week number
2218	function GetWeekNbr($aDate,$aSunStart=true) {
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.
2228
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 $week;
2252	}
2253
2254	// Is year a leap year?
2255	function IsLeap($aYear) {
2256	// Is the year a leap year?
2257	//$year = 0+date("Y",$aDate);
2258	if( $aYear % 4 == 0)
2259	if( !($aYear % 100 == 0) \|\| ($aYear % 400 == 0) )
2260	return true;
2261	return false;
2262	}
2263
2264	// Get current year
2265	function GetYear($aDate) {
2266	return 0+Date("Y",$aDate);
2267	}
2268
2269	// Return number of days in a year
2270	function GetNumDaysInMonth($aMonth,$aYear) {
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];
2277	}
2278
2279	// Get day in month
2280	function GetMonthDayNbr($aDate) {
2281	return 0+strftime("%d",$aDate);
2282	}
2283
2284	// Get day in year
2285	function GetYearDayNbr($aDate) {
2286	return 0+strftime("%j",$aDate);
2287	}
2288
2289	// Get month number
2290	function GetMonthNbr($aDate) {
2291	return 0+strftime("%m",$aDate);
2292	}
2293
2294	// Translate a date to screen coordinates (horizontal scale)
2295	function TranslateDate($aDate) {
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;;
2318	}
2319
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;
2339	}
2340
2341	// What is the vertical spacing?
2342	function GetVertSpacing() {
2343	return $this->iVertSpacing;
2344	}
2345
2346	// Convert a date to timestamp
2347	function NormalizeDate($aDate) {
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 ($aDate).");
2362	}
2363
2364
2365	// Convert a time string to minutes
2366
2367	function TimeToMinutes($aTimeString) {
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 $minint;
2381	}
2382
2383	// Stroke the day scale (including gridlines)
2384	function StrokeMinutes($aYCoord,$getHeight=false) {
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);
2398
2399	$x = $xt;
2400	$img->SetTextAlign("center");
2401	$day = date('w',$this->iStartDate);
2402	$minint = $this->minute->GetIntervall() ;
2403
2404	if( 60 % $minint !== 0 ) {
2405	JpGraphError::RaiseL(6018,$minint);
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	}
2408
2409
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	}
2418
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 ) {
2427
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();
2434
2435	}
2436
2437	if( $day==0 )
2438	$img->SetColor($this->day->iSundayTextColor);
2439	else
2440	$img->SetColor($this->day->iTextColor);
2441
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 $aYCoord;
2476	}
2477
2478	// Stroke the day scale (including gridlines)
2479	function StrokeHours($aYCoord,$getHeight=false) {
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);
2493
2494	$x = $xt;
2495	$img->SetTextAlign("center");
2496	$tmp = $this->hour->GetIntervall() ;
2497	$minint = $this->TimeToMinutes($tmp);
2498	if( 1440 % $minint !== 0 ) {
2499	JpGraphError::RaiseL(6020,$tmp);
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	}
2502
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 ) {
2511
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();
2518
2519	}
2520
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 $aYCoord;
2563	}
2564
2565
2566	// Stroke the day scale (including gridlines)
2567	function StrokeDays($aYCoord,$getHeight=false) {
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);
2581
2582	$x = $xt;
2583	$img->SetTextAlign("center");
2584	$day = date('w',$this->iStartDate);
2585	$datestamp = $this->iStartDate;
2586
2587	$doback = !($this->hour->iShowLabels \|\| $this->minute->iShowLabels);
2588
2589	setlocale(LC_TIME,$this->iDateLocale->iLocale);
2590
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	}
2601
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 $aYCoord;
2683	}
2684
2685	// Stroke week header and grid
2686	function StrokeWeeks($aYCoord,$getHeight=false) {
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;
2692
2693	if( $getHeight ) {
2694	return $yb - $img->top_margin;
2695	}
2696
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	$txtOffset = 3;
2717	}
2718	else {
2719	JpGraphError::RaiseL(6021);
2720	//("Unknown formatting style for week.");
2721	}
2722
2723	for($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 $aYCoord;
2760	}
2761
2762	// Format the mont scale header string
2763	function GetMonthLabel($aMonthNbr,$year) {
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 $m;
2790	}
2791
2792	// Stroke month scale and gridlines
2793	function StrokeMonths($aYCoord,$getHeight=false) {
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;
2805
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 $aYCoord;
2857	}
2858
2859	// Stroke year scale and gridlines
2860	function StrokeYears($aYCoord,$getHeight=false) {
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;
2866
2867	if( $getHeight ) {
2868	return $yb - $img->top_margin;
2869	}
2870
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 $aYCoord;
2916	}
2917
2918	// Stroke table title (upper left corner)
2919	function StrokeTableHeaders($aYBottom) {
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;
2925
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	}
2935
2936	$this->actinfo->Stroke($img,$xt,$yt,$xb,$yb,$this->tableTitle->iShow);
2937
2938
2939	// Draw the horizontal dividing line
2940	$this->dividerh->Stroke($img,$xt,$yb,$img->width-$img->right_margin,$yb);
2941
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	}
2949
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,$y);
2965	}
2966	}
2967
2968	// Main entry point to stroke scale
2969	function Stroke() {
2970	if( !$this->IsRangeSet() ) {
2971	JpGraphError::RaiseL(6022);
2972	//("Gantt scale has not been specified.");
2973	}
2974	$img=$this->iImg;
2975
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	}
2981
2982	// Stroke all headers. As argument we supply the offset from the
2983	// top which depends on any previous headers
2984
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);
2992
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	}
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 $iConstrainArrowType;
3027
3028	//---------------
3029	// CONSTRUCTOR
3030	function __construct($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;
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='';
3047	public $constraints = array();
3048	public $iCaptionMargin=5;
3049	public $iConstrainPos=array();
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();
3058	}
3059
3060	function GetCSIMArea() {
3061	return $this->csimarea;
3062	}
3063
3064	function SetCSIMTarget($aTarget,$aAlt='',$aWinTarget='') {
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	}
3075
3076	$this->csimtarget=$aTarget;
3077	$this->csimwintarget=$aWinTarget;
3078	$this->csimalt=$aAlt;
3079	}
3080
3081	function SetCSIMAlt($aAlt) {
3082	if( !is_string($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	}
3087	$this->csimalt=$aAlt;
3088	}
3089
3090	function SetConstrain($aRow,$aType,$aColor='black',$aArrowSize=ARROW_S2,$aArrowType=ARROWT_SOLID) {
3091	$this->constraints[] = new GanttConstraint($aRow, $aType, $aColor, $aArrowSize, $aArrowType);
3092	}
3093
3094	function SetConstrainPos($xt,$yt,$xb,$yb) {
3095	$this->iConstrainPos = array($xt,$yt,$xb,$yb);
3096	}
3097
3098	function GetMinDate() {
3099	return $this->iStart;
3100	}
3101
3102	function GetMaxDate() {
3103	return $this->iStart;
3104	}
3105
3106	function SetCaptionMargin($aMarg) {
3107	$this->iCaptionMargin=$aMarg;
3108	}
3109
3110	function GetAbsHeight($aImg) {
3111	return 0;
3112	}
3113
3114	function GetLineNbr() {
3115	return $this->iVPos;
3116	}
3117
3118	function SetLabelLeftMargin($aOff) {
3119	$this->iLabelLeftMargin=$aOff;
3120	}
3121
3122	function StrokeActInfo($aImg,$aScale,$aYPos) {
3123	$cols=array();
3124	$aScale->actinfo->GetColStart($aImg,$cols,true);
3125	$this->title->Stroke($aImg,$cols,$aYPos);
3126	}
3127	}
3128
3129	//===================================================
3130	// CLASS Progress
3131	// Holds parameters for the progress indicator
3132	// displyed within a bar
3133	//===================================================
3134	class Progress {
3135	public $iProgress=-1;
3136	public $iPattern=GANTT_SOLID;
3137	public $iColor="black", $iFillColor='black';
3138	public $iDensity=98, $iHeight=0.65;
3139
3140	function Set($aProg) {
3141	if( $aProg < 0.0 \|\| $aProg > 1.0 ) {
3142	JpGraphError::RaiseL(6027);
3143	//("Progress value must in range [0, 1]");
3144	}
3145	$this->iProgress = $aProg;
3146	}
3147
3148	function SetPattern($aPattern,$aColor="blue",$aDensity=98) {
3149	$this->iPattern = $aPattern;
3150	$this->iColor = $aColor;
3151	$this->iDensity = $aDensity;
3152	}
3153
3154	function SetFillColor($aColor) {
3155	$this->iFillColor = $aColor;
3156	}
3157
3158	function SetHeight($aHeight) {
3159	$this->iHeight = $aHeight;
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
3177	function __construct() {
3178	$this->line = new LineProperty();
3179	$this->line->SetColor('gray@0.4');
3180	$this->line->SetStyle('dashed');
3181	}
3182
3183	function Show($aShow=true) {
3184	$this->iShow = $aShow;
3185	}
3186
3187	function SetRowFillColor($aColor1,$aColor2='') {
3188	$this->iRowColor1 = $aColor1;
3189	$this->iRowColor2 = $aColor2;
3190	}
3191
3192	function SetStart($aStart) {
3193	$this->iStart = $aStart;
3194	}
3195
3196	function Stroke($aImg,$aScale) {
3197
3198	if( ! $this->iShow ) return;
3199
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	*/
3207
3208	if( $this->iStart === 0 ) {
3209	$xt = $aImg->left_margin-1;
3210	}
3211	else {
3212	$xt = round($aScale->TranslateDate($aScale->iStartDate))+1;
3213	}
3214
3215	$xb = $aImg->width-$aImg->right_margin;
3216
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);
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;
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	$this->progress = new Progress();
3287	}
3288
3289	//---------------
3290	// PUBLIC METHODS
3291	function SetShadow($aShadow=true,$aColor="gray") {
3292	$this->iShadow=$aShadow;
3293	$this->iShadowColor=$aColor;
3294	}
3295
3296	function SetBreakStyle($aFlg=true,$aLineStyle='dotted',$aLineWeight=1) {
3297	$this->iBreakStyle = $aFlg;
3298	$this->iBreakLineStyle = $aLineStyle;
3299	$this->iBreakLineWeight = $aLineWeight;
3300	}
3301
3302	function GetMaxDate() {
3303	return $this->iEnd;
3304	}
3305
3306	function SetHeight($aHeight) {
3307	$this->iHeightFactor = $aHeight;
3308	}
3309
3310	function SetColor($aColor) {
3311	$this->iFrameColor = $aColor;
3312	}
3313
3314	function SetFillColor($aColor) {
3315	$this->iFillColor = $aColor;
3316	}
3317
3318	function GetAbsHeight($aImg) {
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 $m;
3328	}
3329	else
3330	return -1;
3331	}
3332
3333	function SetPattern($aPattern,$aColor="blue",$aDensity=95) {
3334	$this->iPattern = $aPattern;
3335	$this->iPatternColor = $aColor;
3336	$this->iPatternDensity = $aDensity;
3337	}
3338
3339	function Stroke($aImg,$aScale) {
3340	$factory = new RectPatternFactory();
3341	$prect = $factory->Create($this->iPattern,$this->iPatternColor);
3342	$prect->SetDensity($this->iPatternDensity);
3343
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	}
3355
3356	// Clip date to min max dates to show
3357	$st = $aScale->NormalizeDate($this->iStart);
3358	$en = $aScale->NormalizeDate($this->iEnd);
3359
3360	$limst = max($st,$aScale->iStartDate);
3361	$limen = min($en,$aScale->iEndDate);
3362
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);
3369
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,$yb";
3380
3381	if( ! empty($this->title->csimtarget[$i]) ) {
3382	$this->csimarea .= "<area shape=\"poly\" coords=\"$coords\" href=\"".$this->title->csimtarget[$i]."\"";
3383
3384	if( ! empty($this->title->csimwintarget[$i]) ) {
3385	$this->csimarea .= "target=\"".$this->title->csimwintarget[$i]."\" ";
3386	}
3387
3388	if( ! empty($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	}
3396
3397	// Check if the bar is totally outside the current scale range
3398	if( $en < $aScale->iStartDate \|\| $st > $aScale->iEndDate )
3399	return;
3400
3401
3402	// Remember the positions for the bar
3403	$this->SetConstrainPos($xt,$yt,$xb,$yb);
3404
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	}
3510	}
3511	}
3512
3513	//===================================================
3514	// CLASS MileStone
3515	// Responsible for formatting individual milestones
3516	//===================================================
3517	class MileStone extends GanttPlotObject {
3518	public $mark;
3519
3520	//---------------
3521	// CONSTRUCTOR
3522	function __construct($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 = $aDate;
3536	}
3537
3538	//---------------
3539	// PUBLIC METHODS
3540
3541	function GetAbsHeight($aImg) {
3542	return max($this->title->GetHeight($aImg),$this->mark->GetWidth());
3543	}
3544
3545	function Stroke($aImg,$aScale) {
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);
3550
3551	$this->StrokeActInfo($aImg,$aScale,$y);
3552
3553	// CSIM for title
3554	if( ! empty($this->title->csimtarget) ) {
3555
3556	$yt = round($y - $this->title->GetHeight($aImg)/2);
3557	$yb = round($y + $this->title->GetHeight($aImg)/2);
3558
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,$yb";
3567
3568	if( !empty($this->title->csimtarget[$i]) ) {
3569
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 .= $this->mark->GetCSIMAreas();
3603	}
3604	}
3605
3606
3607	//===================================================
3608	// CLASS GanttVLine
3609	// Responsible for formatting individual milestones
3610	//===================================================
3611
3612	class TextPropertyBelow extends TextProperty {
3613	function __construct($aTxt='') {
3614	parent::__construct($aTxt);
3615	}
3616
3617	function GetColWidth($aImg,$aMargin=0) {
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);
3621	}
3622	}
3623
3624	class GanttVLine extends GanttPlotObject {
3625
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);
3640	}
3641
3642	//---------------
3643	// PUBLIC METHODS
3644
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 = $aEnd;
3650	}
3651
3652	function SetDayOffset($aOff=0.5) {
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 = $aOff;
3658	}
3659
3660	function SetTitleMargin($aMarg) {
3661	$this->title_margin = $aMarg;
3662	}
3663
3664	function SetWeight($aWeight) {
3665	$this->iLine->SetWeight($aWeight);
3666	}
3667
3668	function Stroke($aImg,$aScale) {
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	}
3694	}
3695
3696	//===================================================
3697	// CLASS LinkArrow
3698	// Handles the drawing of a an arrow
3699	//===================================================
3700	class LinkArrow {
3701	private $ix,$iy;
3702	private $isizespec = array(
3703	array(2,3),array(3,5),array(3,8),array(6,15),array(8,22));
3704	private $iDirection=ARROW_DOWN,$iType=ARROWT_SOLID,$iSize=ARROW_S2;
3705	private $iColor='black';
3706
3707	function __construct($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 = $y;
3713	}
3714
3715	function SetColor($aColor) {
3716	$this->iColor = $aColor;
3717	}
3718
3719	function SetSize($aSize) {
3720	$this->iSize = $aSize;
3721	}
3722
3723	function SetType($aType) {
3724	$this->iType = $aType;
3725	}
3726
3727	function Stroke($aImg) {
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	}
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
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 = $y2;
3783	}
3784
3785	function SetPos($x1,$y1,$x2,$y2) {
3786	$this->ix1 = $x1;
3787	$this->ix2 = $x2;
3788	$this->iy1 = $y1;
3789	$this->iy2 = $y2;
3790	}
3791
3792	function SetPath($aPath) {
3793	$this->iPathType = $aPath;
3794	}
3795
3796	function SetColor($aColor) {
3797	$this->iColor = $aColor;
3798	}
3799
3800	function SetArrow($aSize,$aType=ARROWT_SOLID) {
3801	$this->iArrowSize = $aSize;
3802	$this->iArrowType = $aType;
3803	}
3804
3805	function SetWeight($aWeight) {
3806	$this->iWeight = $aWeight;
3807	}
3808
3809	function Stroke($aImg) {
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.
3822
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 ;
3828
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);
3951	}
3952	}
3953
3954	// <EOF>
3955	?>

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source: trunk/client/modules/Elezioni/grafici/jpgraph_gantt.php@ 429

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