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