source: trunk/client/modules/Elezioni/grafici-old/jpgraph_plotmark.inc@ 11

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1<?php
2//=======================================================================
3// File: JPGRAPH_PLOTMARK.PHP
4// Description: Class file. Handles plotmarks
5// Created: 2003-03-21
6// Author: Johan Persson (johanp@aditus.nu)
7// Ver: $Id: jpgraph_plotmark.inc,v 1.9 2003/05/28 20:45:05 aditus Exp $
8//
9// License: This code is released under QPL 1.0
10// Copyright (C) 2003 Johan Persson
11//========================================================================
12
13
14//========================================================================
15// CLASS ImgData
16// Description: Base class for all image data classes that contains the
17// real image data.
18//========================================================================
19class ImgData {
20 var $name = ''; // Each subclass gives a name
21 var $an = array(); // Data array names
22 var $colors = array(); // Available colors
23 var $index = array(); // Index for colors
24 var $maxidx = 0 ; // Max color index
25 var $anchor_x=0.5, $anchor_y=0.5 ; // Where is the center of the image
26 // Create a GD image from the data and return a GD handle
27 function GetImg($aMark,$aIdx) {
28 $n = $this->an[$aMark];
29 if( is_string($aIdx) ) {
30 if( !in_array($aIdx,$this->colors) ) {
31 JpGraphError::Raise('This marker "'.($this->name).'" does not exist in color: '.$aIdx);
32 die();
33 }
34 $idx = $this->index[$aIdx];
35 }
36 elseif( !is_integer($aIdx) ||
37 (is_integer($aIdx) && $aIdx > $this->maxidx ) ) {
38 JpGraphError::Raise('Mark color index too large for marker "'.($this->name).'"');
39 }
40 else
41 $idx = $aIdx ;
42 return imagecreatefromstring(base64_decode($this->{$n}[$idx][1]));
43 }
44 function GetAnchor() {
45 return array($this->anchor_x,$this->anchor_y);
46 }
47}
48
49
50//===================================================
51// CLASS PlotMark
52// Description: Handles the plot marks in graphs
53//===================================================
54class PlotMark {
55 var $title, $show=true;
56 var $type,$weight=1;
57 var $color="black", $width=4, $fill_color="blue";
58 var $yvalue,$xvalue='',$csimtarget,$csimalt,$csimareas;
59 var $iFormatCallback="";
60 var $iFormatCallback2="";
61 var $markimg='',$iScale=1.0;
62 var $oldfilename='',$iFileName='';
63 var $imgdata_balls = null;
64 var $imgdata_diamonds = null;
65 var $imgdata_squares = null;
66 var $imgdata_bevels = null;
67 var $imgdata_stars = null;
68 var $imgdata_pushpins = null;
69
70//--------------
71// CONSTRUCTOR
72 function PlotMark() {
73 $this->title = new Text();
74 $this->title->Hide();
75 $this->csimareas = '';
76 $this->csimalt = '';
77 $this->type=-1;
78 }
79//---------------
80// PUBLIC METHODS
81 function SetType($aType,$aFileName='',$aScale=1.0) {
82 $this->type = $aType;
83 if( $aType == MARK_IMG && $aFileName=='' ) {
84 JpGraphError::Raise('A filename must be specified if you set the mark type to MARK_IMG.');
85 }
86 $this->iFileName = $aFileName;
87 $this->iScale = $aScale;
88 }
89
90 function SetCallback($aFunc) {
91 $this->iFormatCallback = $aFunc;
92 }
93
94 function SetCallbackYX($aFunc) {
95 $this->iFormatCallback2 = $aFunc;
96 }
97
98 function GetType() {
99 return $this->type;
100 }
101
102 function SetColor($aColor) {
103 $this->color=$aColor;
104 }
105
106 function SetFillColor($aFillColor) {
107 $this->fill_color = $aFillColor;
108 }
109
110 function SetWeight($aWeight) {
111 $this->weight = $aWeight;
112 }
113
114 // Synonym for SetWidth()
115 function SetSize($aWidth) {
116 $this->width=$aWidth;
117 }
118
119 function SetWidth($aWidth) {
120 $this->width=$aWidth;
121 }
122
123 function SetDefaultWidth() {
124 switch( $this->type ) {
125 case MARK_CIRCLE:
126 case MARK_FILLEDCIRCLE:
127 $this->width=4;
128 break;
129 default:
130 $this->width=7;
131 }
132 }
133
134 function GetWidth() {
135 return $this->width;
136 }
137
138 function Hide($aHide=true) {
139 $this->show = !$aHide;
140 }
141
142 function Show($aShow=true) {
143 $this->show = $aShow;
144 }
145
146 function SetCSIMAltVal($aY,$aX='') {
147 $this->yvalue=$aY;
148 $this->xvalue=$aX;
149 }
150
151 function SetCSIMTarget($aTarget) {
152 $this->csimtarget=$aTarget;
153 }
154
155 function SetCSIMAlt($aAlt) {
156 $this->csimalt=$aAlt;
157 }
158
159 function GetCSIMAreas(){
160 return $this->csimareas;
161 }
162
163 function AddCSIMPoly($aPts) {
164 $coords = round($aPts[0]).", ".round($aPts[1]);
165 $n = count($aPts)/2;
166 for( $i=1; $i < $n; ++$i){
167 $coords .= ", ".round($aPts[2*$i]).", ".round($aPts[2*$i+1]);
168 }
169 $this->csimareas="";
170 if( !empty($this->csimtarget) ) {
171 $this->csimareas .= "<area shape=\"poly\" coords=\"$coords\" href=\"".$this->csimtarget."\"";
172 if( !empty($this->csimalt) ) {
173 $tmp=sprintf($this->csimalt,$this->yvalue,$this->xvalue);
174 $this->csimareas .= " alt=\"$tmp\" title=\"$tmp\"";
175 }
176 $this->csimareas .= ">\n";
177 }
178 }
179
180 function AddCSIMCircle($x,$y,$r) {
181 $x = round($x); $y=round($y); $r=round($r);
182 $this->csimareas="";
183 if( !empty($this->csimtarget) ) {
184 $this->csimareas .= "<area shape=\"circle\" coords=\"$x,$y,$r\" href=\"".$this->csimtarget."\"";
185 if( !empty($this->csimalt) ) {
186 $tmp=sprintf($this->csimalt,$this->yvalue,$this->xvalue);
187 $this->csimareas .= " alt=\"$tmp\" title=\"$tmp\"";
188 }
189 $this->csimareas .= ">\n";
190 }
191 }
192
193 function Stroke($img,$x,$y) {
194 if( !$this->show ) return;
195
196 if( $this->iFormatCallback != '' || $this->iFormatCallback2 != '' ) {
197
198 if( $this->iFormatCallback != '' ) {
199 $f = $this->iFormatCallback;
200 list($width,$color,$fcolor) = $f($this->yvalue);
201 $filename = $this->iFileName;
202 $imgscale = $this->iScale;
203 }
204 else {
205 $f = $this->iFormatCallback2;
206 list($width,$color,$fcolor,$filename,$imgscale) = $f($this->yvalue,$this->xvalue);
207 if( $filename=="" ) $filename = $this->iFileName;
208 if( $imgscale=="" ) $imgscale = $this->iScale;
209 }
210
211 if( $width=="" ) $width = $this->width;
212 if( $color=="" ) $color = $this->color;
213 if( $fcolor=="" ) $fcolor = $this->fill_color;
214
215 }
216 else {
217 $fcolor = $this->fill_color;
218 $color = $this->color;
219 $width = $this->width;
220 $filename = $this->iFileName;
221 $imgscale = $this->iScale;
222 }
223
224
225 if( $this->type == MARK_IMG || $this->type >= MARK_IMG_PUSHPIN ) {
226
227 // Note: For the builtin images we use the "filename" parameter
228 // to denote the color
229 $anchor_x = 0.5;
230 $anchor_y = 0.5;
231 switch( $this->type ) {
232 case MARK_IMG :
233 // Load an image and use that as a marker
234 // Small optimization, if we have already read an image don't
235 // waste time reading it again.
236 if( $this->markimg == '' || !($this->oldfilename === $filename) ) {
237 $this->markimg = Graph::LoadBkgImage('',$filename);
238 $this->oldfilename = $filename ;
239 }
240 break;
241
242 case MARK_IMG_PUSHPIN:
243 case MARK_IMG_SPUSHPIN:
244 case MARK_IMG_LPUSHPIN:
245 if( $this->imgdata_pushpins == null ) {
246 require_once 'imgdata_pushpins.inc';
247 $this->imgdata_pushpins = new ImgData_PushPins();
248 }
249 $this->markimg = $this->imgdata_pushpins->GetImg($this->type,$filename);
250 list($anchor_x,$anchor_y) = $this->imgdata_pushpins->GetAnchor();
251 break;
252
253 case MARK_IMG_SQUARE:
254 if( $this->imgdata_squares == null ) {
255 require_once 'imgdata_squares.inc';
256 $this->imgdata_squares = new ImgData_Squares();
257 }
258 $this->markimg = $this->imgdata_squares->GetImg($this->type,$filename);
259 list($anchor_x,$anchor_y) = $this->imgdata_squares->GetAnchor();
260 break;
261
262 case MARK_IMG_STAR:
263 if( $this->imgdata_stars == null ) {
264 require_once 'imgdata_stars.inc';
265 $this->imgdata_stars = new ImgData_Stars();
266 }
267 $this->markimg = $this->imgdata_stars->GetImg($this->type,$filename);
268 list($anchor_x,$anchor_y) = $this->imgdata_stars->GetAnchor();
269 break;
270
271 case MARK_IMG_BEVEL:
272 if( $this->imgdata_bevels == null ) {
273 require_once 'imgdata_bevels.inc';
274 $this->imgdata_bevels = new ImgData_Bevels();
275 }
276 $this->markimg = $this->imgdata_bevels->GetImg($this->type,$filename);
277 list($anchor_x,$anchor_y) = $this->imgdata_bevels->GetAnchor();
278 break;
279
280 case MARK_IMG_DIAMOND:
281 if( $this->imgdata_diamonds == null ) {
282 require_once 'imgdata_diamonds.inc';
283 $this->imgdata_diamonds = new ImgData_Diamonds();
284 }
285 $this->markimg = $this->imgdata_diamonds->GetImg($this->type,$filename);
286 list($anchor_x,$anchor_y) = $this->imgdata_diamonds->GetAnchor();
287 break;
288
289 case MARK_IMG_BALL:
290 case MARK_IMG_SBALL:
291 case MARK_IMG_MBALL:
292 case MARK_IMG_LBALL:
293 if( $this->imgdata_balls == null ) {
294 require_once 'imgdata_balls.inc';
295 $this->imgdata_balls = new ImgData_Balls();
296 }
297 $this->markimg = $this->imgdata_balls->GetImg($this->type,$filename);
298 list($anchor_x,$anchor_y) = $this->imgdata_balls->GetAnchor();
299 break;
300 }
301
302 $w = imagesx($this->markimg);
303 $h = imagesy($this->markimg);
304
305 $dw = round($imgscale * $w );
306 $dh = round($imgscale * $h );
307
308 $dx = round($x-$dw*$anchor_x);
309 $dy = round($y-$dh*$anchor_y);
310
311 $this->width = max($dx,$dy);
312
313 $cp = $GLOBALS['copyfunc'] ;
314 $cp($img->img,$this->markimg,$dx,$dy,0,0,$dw,$dh,$w,$h);
315 if( !empty($this->csimtarget) ) {
316 $this->csimareas = "<area shape=\"rect\" coords=\"".
317 $dx.','.$dy.','.round($dx+$dw).','.round($dy+$dh).'" '.
318 "href=\"".$this->csimtarget."\"";
319 if( !empty($this->csimalt) ) {
320 $tmp=sprintf($this->csimalt,$this->yvalue,$this->xvalue);
321 $this->csimareas .= " alt=\"$tmp\" title=\"$tmp\"";
322 }
323 $this->csimareas .= ">\n";
324 }
325
326 // Stroke title
327 $this->title->Align("center","top");
328 $this->title->Stroke($img,$x,$y+round($dh/2));
329 return;
330 }
331
332 $weight = $this->weight;
333 $dx=round($width/2,0);
334 $dy=round($width/2,0);
335 $pts=0;
336
337 switch( $this->type ) {
338 case MARK_SQUARE:
339 $c[]=$x-$dx;$c[]=$y-$dy;
340 $c[]=$x+$dx;$c[]=$y-$dy;
341 $c[]=$x+$dx;$c[]=$y+$dy;
342 $c[]=$x-$dx;$c[]=$y+$dy;
343 $c[]=$x-$dx;$c[]=$y-$dy;
344 $pts=5;
345 break;
346 case MARK_UTRIANGLE:
347 ++$dx;++$dy;
348 $c[]=$x-$dx;$c[]=$y+0.87*$dy; // tan(60)/2*$dx
349 $c[]=$x;$c[]=$y-0.87*$dy;
350 $c[]=$x+$dx;$c[]=$y+0.87*$dy;
351 $c[]=$x-$dx;$c[]=$y+0.87*$dy; // tan(60)/2*$dx
352 $pts=4;
353 break;
354 case MARK_DTRIANGLE:
355 ++$dx;++$dy;
356 $c[]=$x;$c[]=$y+0.87*$dy; // tan(60)/2*$dx
357 $c[]=$x-$dx;$c[]=$y-0.87*$dy;
358 $c[]=$x+$dx;$c[]=$y-0.87*$dy;
359 $c[]=$x;$c[]=$y+0.87*$dy; // tan(60)/2*$dx
360 $pts=4;
361 break;
362 case MARK_DIAMOND:
363 $c[]=$x;$c[]=$y+$dy;
364 $c[]=$x-$dx;$c[]=$y;
365 $c[]=$x;$c[]=$y-$dy;
366 $c[]=$x+$dx;$c[]=$y;
367 $c[]=$x;$c[]=$y+$dy;
368 $pts=5;
369 break;
370 case MARK_LEFTTRIANGLE:
371 $c[]=$x;$c[]=$y;
372 $c[]=$x;$c[]=$y+2*$dy;
373 $c[]=$x+$dx*2;$c[]=$y;
374 $c[]=$x;$c[]=$y;
375 $pts=4;
376 break;
377 case MARK_RIGHTTRIANGLE:
378 $c[]=$x-$dx*2;$c[]=$y;
379 $c[]=$x;$c[]=$y+2*$dy;
380 $c[]=$x;$c[]=$y;
381 $c[]=$x-$dx*2;$c[]=$y;
382 $pts=4;
383 break;
384 case MARK_FLASH:
385 $dy *= 2;
386 $c[]=$x+$dx/2; $c[]=$y-$dy;
387 $c[]=$x-$dx+$dx/2; $c[]=$y+$dy*0.7-$dy;
388 $c[]=$x+$dx/2; $c[]=$y+$dy*1.3-$dy;
389 $c[]=$x-$dx+$dx/2; $c[]=$y+2*$dy-$dy;
390 $img->SetLineWeight($weight);
391 $img->SetColor($color);
392 $img->Polygon($c);
393 $img->SetLineWeight(1);
394 $this->AddCSIMPoly($c);
395 break;
396 }
397
398 if( $pts>0 ) {
399 $this->AddCSIMPoly($c);
400 $img->SetLineWeight($weight);
401 $img->SetColor($fcolor);
402 $img->FilledPolygon($c);
403 $img->SetColor($color);
404 $img->Polygon($c);
405 $img->SetLineWeight(1);
406 }
407 elseif( $this->type==MARK_CIRCLE ) {
408 $img->SetColor($color);
409 $img->Circle($x,$y,$width);
410 $this->AddCSIMCircle($x,$y,$width);
411 }
412 elseif( $this->type==MARK_FILLEDCIRCLE ) {
413 $img->SetColor($fcolor);
414 $img->FilledCircle($x,$y,$width);
415 $img->SetColor($color);
416 $img->Circle($x,$y,$width+1);
417 $this->AddCSIMCircle($x,$y,$width);
418 }
419 elseif( $this->type==MARK_CROSS ) {
420 // Oversize by a pixel to match the X
421 $img->SetColor($color);
422 $img->SetLineWeight($weight);
423 $img->Line($x,$y+$dy+1,$x,$y-$dy-1);
424 $img->Line($x-$dx-1,$y,$x+$dx+1,$y);
425 $this->AddCSIMCircle($x,$y,$dx);
426 }
427 elseif( $this->type==MARK_X ) {
428 $img->SetColor($color);
429 $img->SetLineWeight($weight);
430 $img->Line($x+$dx,$y+$dy,$x-$dx,$y-$dy);
431 $img->Line($x-$dx,$y+$dy,$x+$dx,$y-$dy);
432 $this->AddCSIMCircle($x,$y,$dx+$dy);
433 }
434 elseif( $this->type==MARK_STAR ) {
435 $img->SetColor($color);
436 $img->SetLineWeight($weight);
437 $img->Line($x+$dx,$y+$dy,$x-$dx,$y-$dy);
438 $img->Line($x-$dx,$y+$dy,$x+$dx,$y-$dy);
439 // Oversize by a pixel to match the X
440 $img->Line($x,$y+$dy+1,$x,$y-$dy-1);
441 $img->Line($x-$dx-1,$y,$x+$dx+1,$y);
442 $this->AddCSIMCircle($x,$y,$dx+$dy);
443 }
444
445 // Stroke title
446 $this->title->Align("center","center");
447 $this->title->Stroke($img,$x,$y);
448 }
449} // Class
450
451
452?>
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