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source: trunk/phpgwapi/inc/class.gdimage.inc.php @ 2

Revision 2, 7.4 KB checked in by niltonneto, 17 years ago (diff)
Removida todas as tags usadas pelo CVS ($Id, $Source). Primeira versão no CVS externo.
Property svn:eol-style set to `native` Property svn:executable set to ``*

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1	<?php
2	/*******************************************************************\
3	* eGroupWare - GD Image *
4	* http://www.egroupware.org *
5	* *
6	* Written by by Bettina Gille [ceb@phpgroupware.org] *
7	* *
8	* Creates images using GD graphics library *
9	* Copyright (C) 2003 Free Software Foundation, Inc *
10	* ----------------------------------------------------------------- *
11	* This class based on htmlGD.php3 *
12	* Double Choco Latte - Source Configuration Management System *
13	* Copyright (C) 1999 Michael L. Dean & Tim R. Norman *
14	* ----------------------------------------------------------------- *
15	* This library is part of the eGroupWare API *
16	* ----------------------------------------------------------------- *
17	* This library is free software; you can redistribute it and/or *
18	* modify it under the terms of the GNU General Public License as *
19	* published by the Free Software Foundation; either version 2 of *
20	* the License, or (at your option) any later version. *
21	* *
22	* This program is distributed in the hope that it will be useful, *
23	* but WITHOUT ANY WARRANTY; without even the implied warranty of *
24	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
25	* General Public License for more details. *
26	* *
27	* You should have received a copy of the GNU General Public License *
28	* along with this program; if not, write to the Free Software *
29	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
30	\*******************************************************************/
31
32	class gdimage
33	{
34	var $filename;
35	var $type;
36	var $cur_x;
37	var $cur_y;
38	var $width;
39	var $height;
40	var $hImage;
41	var $colormap;
42	var $hColor;
43	var $font;
44
45	function gdimage()
46	{
47	$this->gd = $this->check_gd();
48
49	if ($this->gd == 0)
50	{
51	echo 'Your PHP installation does not seem to have the required GD library.
52	Please see the PHP documentation on how to install and enable the GD library.';
53	exit;
54	}
55
56	$this->cur_x = 0;
57	$this->cur_y = 0;
58	$this->width = 0;
59	$this->height = 0;
60	$this->hImage = 0;
61	$this->colormap = array();
62	$this->hColor = 0;
63	$this->font = 0;
64	$this->type = 'png';
65	$this->temp_file = PHPGW_SERVER_ROOT . SEP . 'phpgwapi' . SEP . 'images' . SEP . 'draw_tmp.png';
66	}
67
68	function check_gd()
69	{
70	ob_start();
71	phpinfo(8); // Just get the modules loaded
72	$a = ob_get_contents();
73	ob_end_clean();
74
75	if(preg_match('/.GD Version.(1[0-9\|\.]+).*/',$a,$m))
76	{
77	$r=1; //$v=$m[1];
78	}
79	elseif(preg_match('/.GD Version.(2[0-9\|\.]+).*/',$a,$m))
80	{
81	$r=2; //$v=$m[1];
82	}
83	else
84	{
85	$r=0; //$v=$m[1];
86	}
87	return $r;
88	}
89
90	function Init()
91	{
92	$this->hImage = ImageCreate($this->width, $this->height) or die;
93	return True;
94	}
95
96	function Done()
97	{
98	ImageDestroy($this->hImage);
99	}
100
101	function MoveTo($x, $y)
102	{
103	if ($x >= 0 && $x <= $this->width && $y >= 0 && $y <= $this->height)
104	{
105	$this->cur_x = $x;
106	$this->cur_y = $y;
107
108	return true;
109	}
110	return false;
111	}
112
113	function LineTo($x, $y, $linestyle = 'solid')
114	{
115	if ($x >= 0 && $x <= $this->width && $y >= 0 && $y <= $this->height)
116	{
117	if ($linestyle == 'dashed')
118	{
119	ImageDashedLine($this->hImage, $this->cur_x, $this->cur_y, $x, $y, $this->hColor);
120	}
121	else
122	{
123	ImageLine($this->hImage, $this->cur_x, $this->cur_y, $x, $y, $this->hColor);
124	}
125
126	$this->cur_x = $x;
127	$this->cur_y = $y;
128
129	return true;
130	}
131
132	return false;
133	}
134
135	function Line($x1, $y1, $x2, $y2, $linestyle = 'solid')
136	{
137	if ($x1 >= 0 && $x1 <= $this->width && $y1 >= 0 && $y1 <= $this->height && $x2 >= 0 && $x2 <= $this->width && $y2 >= 0 && $y2 <= $this->height)
138	{
139	if ($linestyle == 'solid')
140	{
141	ImageLine($this->hImage, $x1, $y1, $x2, $y2, $this->hColor);
142	}
143	else
144	{
145	ImageDashedLine($this->hImage, $x1, $y1, $x2, $y2, $this->hColor);
146	}
147
148	$this->cur_x = $x2;
149	$this->cur_y = $y2;
150
151	return true;
152	}
153
154	return false;
155	}
156
157	function SetColor($r, $g, $b, $set_transparent=False)
158	{
159	$key = "$r,$g,$b";
160	if (!IsSet($this->colormap[$key]))
161	{
162	$this->hColor = ImageColorAllocate($this->hImage, $r, $g, $b);
163	$this->colormap[$key] = $this->hColor;
164	}
165	else
166	{
167	$this->hColor = $this->colormap[$key];
168	}
169	if ($set_transparent)
170	{
171	ImageColorTransparent($this->hImage,$this->hColor);
172	}
173
174	return true;
175	}
176
177	function SetColorByName($name)
178	{
179	$r = 0;
180	$g = 0;
181	$b = 0;
182	switch ($name)
183	{
184	case 'red':
185	$r = 180;
186	break;
187	case 'green':
188	$g = 180;
189	break;
190	case 'blue':
191	$b = 180;
192	break;
193	case 'bright red':
194	$r = 255;
195	break;
196	case 'bright green':
197	$g = 255;
198	break;
199	case 'bright blue':
200	$b = 255;
201	break;
202	case 'dark red':
203	$r = 80;
204	break;
205	case 'dark green':
206	$g = 80;
207	break;
208	case 'dark blue':
209	$b = 80;
210	break;
211	case 'yellow':
212	$r = 255;
213	$g = 215;
214	break;
215	}
216
217	return $this->SetColor($r, $g, $b);
218	}
219
220	function SetFont($font)
221	{
222	if ($font < 1 \|\| $font > 5)
223	{
224	return false;
225	}
226
227	$this->font = $font;
228
229	return true;
230	}
231
232	function GetFontHeight()
233	{
234	return ImageFontHeight($this->font);
235	}
236
237	function GetFontWidth()
238	{
239	return ImageFontWidth($this->font);
240	}
241
242	function DrawText($params)
243	{
244	$text = $params['text'];
245	$direction = (isset($params['direction'])?$params['direction']:'');
246	$justification = (isset($params['justification'])?$params['justification']:'center');
247	$margin_left = (isset($params['margin_left'])?$params['margin_left']:'');
248
249	$textwidth = ImageFontWidth($this->font) * strlen($text);
250
251	/*if (isset($margin_left) && $textwidth >= $margin_left)
252	{
253	$text = strlen($text) - 1 . '.';
254	}*/
255
256	if ($justification == 'center')
257	{
258	if ($direction == 'up')
259	{
260	$this->cur_y += $textwidth / 2;
261	if ($this->cur_y > $this->height)
262	{
263	$this->cur_y = $this->height;
264	}
265	}
266	else
267	{
268	$this->cur_x -= $textwidth / 2;
269	if ($this->cur_x < 0)
270	{
271	$this->cur_x = 0;
272	}
273	}
274	}
275	elseif ($justification == 'right')
276	{
277	if ($direction == 'up')
278	{
279	$this->cur_y += $textwidth;
280	if ($this->cur_y > $this->height)
281	{
282	$this->cur_y = $this->height;
283	}
284	}
285	else
286	{
287	$this->cur_x -= $textwidth;
288	if ($this->cur_x < 0)
289	{
290	$this->cur_x = 0;
291	}
292	}
293	}
294
295	if ($direction == 'up')
296	{
297	ImageStringUp($this->hImage, $this->font, $this->cur_x, $this->cur_y, $text, $this->hColor);
298	}
299	else
300	{
301	ImageString($this->hImage, $this->font, $this->cur_x, $this->cur_y, $text, $this->hColor);
302	}
303
304	return true;
305	}
306
307	function ToBrowser()
308	{
309	//header('Content-type: image/' . $this->type);
310	switch ($this->type)
311	{
312	case 'png':
313	ImagePNG($this->hImage,$this->temp_file);
314	break;
315	case 'gif':
316	ImageGIF($this->hImage);
317	break;
318	case 'jpeg':
319	ImageJPEG($this->hImage);
320	break;
321	}
322	}
323	}
324	?>

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