1 | <?php |
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2 | /** |
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3 | * DOMPDF - PHP5 HTML to PDF renderer |
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4 | * |
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5 | * File: $RCSfile: abstract_renderer.cls.php,v $ |
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6 | * Created on: 2004-06-01 |
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7 | * |
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8 | * Copyright (c) 2004 - Benj Carson <benjcarson@digitaljunkies.ca> |
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9 | * |
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10 | * This library is free software; you can redistribute it and/or |
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11 | * modify it under the terms of the GNU Lesser General Public |
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12 | * License as published by the Free Software Foundation; either |
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13 | * version 2.1 of the License, or (at your option) any later version. |
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14 | * |
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15 | * This library is distributed in the hope that it will be useful, |
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16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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18 | * Lesser General Public License for more details. |
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19 | * |
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20 | * You should have received a copy of the GNU Lesser General Public License |
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21 | * along with this library in the file LICENSE.LGPL; if not, write to the |
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22 | * Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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23 | * 02111-1307 USA |
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24 | * |
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25 | * Alternatively, you may distribute this software under the terms of the |
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26 | * PHP License, version 3.0 or later. A copy of this license should have |
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27 | * been distributed with this file in the file LICENSE.PHP . If this is not |
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28 | * the case, you can obtain a copy at http://www.php.net/license/3_0.txt. |
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29 | * |
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30 | * The latest version of DOMPDF might be available at: |
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31 | * http://www.digitaljunkies.ca/dompdf |
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32 | * |
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33 | * @link http://www.digitaljunkies.ca/dompdf |
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34 | * @copyright 2004 Benj Carson |
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35 | * @author Benj Carson <benjcarson@digitaljunkies.ca> |
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36 | * @package dompdf |
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37 | * @version 0.5.1 |
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38 | */ |
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39 | |
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40 | /* $Id: abstract_renderer.cls.php,v 1.6 2006/07/07 21:31:02 benjcarson Exp $ */ |
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41 | |
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42 | /** |
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43 | * Base renderer class |
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44 | * |
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45 | * @access private |
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46 | * @package dompdf |
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47 | */ |
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48 | abstract class Abstract_Renderer { |
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49 | |
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50 | /** |
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51 | * Rendering backend |
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52 | * |
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53 | * @var Canvas |
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54 | */ |
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55 | protected $_canvas; |
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56 | |
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57 | /** |
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58 | * Current dompdf instance |
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59 | * |
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60 | * @var DOMPDF |
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61 | */ |
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62 | protected $_dompdf; |
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63 | |
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64 | /** |
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65 | * Class constructor |
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66 | * |
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67 | * @param DOMPDF $dompdf The current dompdf instance |
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68 | */ |
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69 | function __construct(DOMPDF $dompdf) { |
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70 | $this->_dompdf = $dompdf; |
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71 | $this->_canvas = $dompdf->get_canvas(); |
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72 | } |
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73 | |
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74 | /** |
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75 | * Render a frame. |
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76 | * |
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77 | * Specialized in child classes |
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78 | * |
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79 | * @param Frame $frame The frame to render |
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80 | */ |
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81 | abstract function render(Frame $frame); |
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82 | |
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83 | //........................................................................ |
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84 | |
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85 | /** |
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86 | * Render a background image over a rectangular area |
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87 | * |
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88 | * @param string $img The background image to load |
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89 | * @param float $x The left edge of the rectangular area |
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90 | * @param float $y The top edge of the rectangular area |
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91 | * @param float $width The width of the rectangular area |
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92 | * @param float $height The height of the rectangular area |
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93 | * @param Style $style The associated Style object |
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94 | */ |
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95 | protected function _background_image($url, $x, $y, $width, $height, $style) { |
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96 | $sheet = $style->get_stylesheet(); |
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97 | |
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98 | // Skip degenerate cases |
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99 | if ( $width == 0 || $height == 0 ) |
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100 | return; |
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101 | |
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102 | list($img, $ext) = Image_Cache::resolve_url($url, |
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103 | $sheet->get_protocol(), |
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104 | $sheet->get_host(), |
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105 | $sheet->get_base_path()); |
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106 | |
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107 | |
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108 | list($bg_x, $bg_y) = $style->background_position; |
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109 | $repeat = $style->background_repeat; |
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110 | |
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111 | if ( !is_percent($bg_x) ) |
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112 | $bg_x = $style->length_in_pt($bg_x); |
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113 | if ( !is_percent($bg_y) ) |
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114 | $bg_y = $style->length_in_pt($bg_y); |
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115 | |
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116 | $repeat = $style->background_repeat; |
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117 | $position = $style->background_position; |
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118 | $bg_color = $style->background_color; |
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119 | |
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120 | // Bail if the image is no good |
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121 | if ( $img == DOMPDF_LIB_DIR . "/res/broken_image.png" ) |
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122 | return; |
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123 | |
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124 | $ext = strtolower($ext); |
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125 | |
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126 | list($img_w, $img_h) = getimagesize($img); |
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127 | |
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128 | $bg_width = round($width * DOMPDF_DPI / 72); |
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129 | $bg_height = round($height * DOMPDF_DPI / 72); |
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130 | |
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131 | // Create a new image to fit over the background rectangle |
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132 | $bg = imagecreatetruecolor($bg_width, $bg_height); |
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133 | if ( $bg_color == "transparent" ) |
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134 | $bg_color = array(1,1,1); |
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135 | |
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136 | list($r,$g,$b) = $bg_color; |
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137 | $r *= 255; $g *= 255; $b *= 255; |
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138 | |
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139 | // Clip values |
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140 | $r = $r > 255 ? 255 : $r; |
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141 | $g = $g > 255 ? 255 : $g; |
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142 | $b = $b > 255 ? 255 : $b; |
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143 | |
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144 | $r = $r < 0 ? 0 : $r; |
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145 | $g = $g < 0 ? 0 : $g; |
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146 | $b = $b < 0 ? 0 : $b; |
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147 | |
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148 | $clear = imagecolorallocate($bg,round($r),round($g),round($b)); |
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149 | imagecolortransparent($bg, $clear); |
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150 | imagefill($bg,1,1,$clear); |
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151 | |
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152 | switch ($ext) { |
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153 | |
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154 | case "png": |
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155 | $src = imagecreatefrompng($img); |
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156 | break; |
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157 | |
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158 | case "jpg": |
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159 | case "jpeg": |
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160 | $src = imagecreatefromjpeg($img); |
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161 | break; |
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162 | |
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163 | case "gif": |
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164 | $src = imagecreatefromgif($img); |
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165 | break; |
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166 | |
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167 | default: |
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168 | return; // Unsupported image type |
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169 | } |
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170 | |
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171 | if ( is_percent($bg_x) ) { |
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172 | // The point $bg_x % from the left edge of the image is placed |
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173 | // $bg_x % from the left edge of the background rectangle |
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174 | $p = ((float)$bg_x)/100.0; |
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175 | $x1 = $p * $img_w; |
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176 | $x2 = $p * $bg_width; |
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177 | |
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178 | $bg_x = $x2 - $x1; |
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179 | } |
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180 | |
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181 | if ( is_percent($bg_y) ) { |
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182 | // The point $bg_y % from the left edge of the image is placed |
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183 | // $bg_y % from the left edge of the background rectangle |
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184 | $p = ((float)$bg_y)/100.0; |
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185 | $y1 = $p * $img_h; |
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186 | $y2 = $p * $bg_height; |
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187 | |
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188 | $bg_y = $y2 - $y1; |
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189 | } |
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190 | |
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191 | // Copy regions from the source image to the background |
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192 | if ( $repeat == "no-repeat" || |
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193 | ($repeat == "repeat-x" && $img_w >= $bg_width) || |
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194 | ($repeat == "repeat-y" && $img_h >= $bg_height) || |
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195 | ($repeat == "repeat" && $img_w >= $bg_width && $img_h >= $bg_height) ) { |
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196 | |
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197 | // Simply place the image on the background |
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198 | $src_x = 0; |
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199 | $src_y = 0; |
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200 | $dst_x = $bg_x; |
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201 | $dst_y = $bg_y; |
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202 | |
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203 | if ( $bg_x < 0 ) { |
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204 | $dst_x = 0; |
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205 | $src_x = -$bg_x; |
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206 | } |
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207 | |
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208 | if ( $bg_y < 0 ) { |
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209 | $dst_y = 0; |
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210 | $src_y = -$bg_y; |
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211 | } |
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212 | |
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213 | $bg_x = round($bg_x * DOMPDF_DPI / 72); |
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214 | $bg_y = round($bg_y * DOMPDF_DPI / 72); |
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215 | |
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216 | imagecopy($bg, $src, $dst_x, $dst_y, $src_x, $src_y, $img_w, $img_h); |
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217 | |
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218 | } else if ( $repeat == "repeat-x" ) { |
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219 | $src_x = 0; |
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220 | $src_y = 0; |
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221 | |
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222 | $dst_y = $bg_y; |
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223 | |
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224 | if ( $bg_y < 0 ) { |
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225 | $dst_y = 0; |
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226 | $src_y = -$bg_y; |
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227 | } |
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228 | |
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229 | if ( $bg_x < 0 ) |
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230 | $start_x = $bg_x; |
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231 | else |
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232 | $start_x = $bg_x % $img_w - $img_w; |
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233 | |
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234 | for ( $bg_x = $start_x; $bg_x < $bg_width; $bg_x += $img_w ) { |
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235 | if ( $bg_x < 0 ) { |
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236 | $dst_x = 0; |
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237 | $src_x = -$bg_x; |
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238 | $w = $img_w + $bg_x; |
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239 | } else { |
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240 | $dst_x = $bg_x; |
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241 | $src_x = 0; |
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242 | $w = $img_w; |
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243 | } |
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244 | imagecopy($bg, $src, $dst_x, $dst_y, $src_x, $src_y, $w, $img_h); |
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245 | } |
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246 | |
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247 | } else if ( $repeat == "repeat-y" ) { |
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248 | $src_x = 0; |
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249 | $src_y = 0; |
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250 | |
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251 | $dst_x = $bg_x; |
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252 | |
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253 | if ( $bg_x < 0 ) { |
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254 | $dst_x = 0; |
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255 | $src_x = -$bg_x; |
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256 | } |
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257 | |
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258 | if ( $bg_y < 0 ) |
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259 | $start_y = $bg_y; |
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260 | else |
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261 | $start_y = $bg_y % $img_h - $img_h; |
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262 | |
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263 | for ( $bg_y = $start_y; $bg_y < $bg_height; $bg_y += $img_h ) { |
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264 | if ( $bg_y < 0 ) { |
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265 | $dst_y = 0; |
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266 | $src_y = -$bg_y; |
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267 | $h = $img_h + $bg_y; |
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268 | } else { |
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269 | $dst_y = $bg_y; |
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270 | $src_y = 0; |
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271 | $h = $img_h; |
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272 | } |
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273 | imagecopy($bg, $src, $dst_x, $dst_y, $src_x, $src_y, $img_w, $h); |
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274 | } |
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275 | |
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276 | } else { |
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277 | |
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278 | if ( $bg_x < 0 ) |
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279 | $start_x = $bg_x; |
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280 | else |
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281 | $start_x = $bg_x % $img_w - $img_w; |
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282 | |
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283 | if ( $bg_y < 0 ) |
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284 | $start_y = $bg_y; |
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285 | else |
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286 | $start_y = $bg_y % $img_h - $img_h; |
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287 | |
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288 | for ( $bg_y = $start_y; $bg_y < $bg_height; $bg_y += $img_h ) { |
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289 | for ( $bg_x = $start_x; $bg_x < $bg_width; $bg_x += $img_w ) { |
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290 | |
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291 | if ( $bg_x < 0 ) { |
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292 | $dst_x = 0; |
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293 | $src_x = -$bg_x; |
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294 | $w = $img_w + $bg_x; |
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295 | } else { |
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296 | $dst_x = $bg_x; |
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297 | $src_x = 0; |
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298 | $w = $img_w; |
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299 | } |
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300 | |
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301 | if ( $bg_y < 0 ) { |
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302 | $dst_y = 0; |
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303 | $src_y = -$bg_y; |
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304 | $h = $img_h + $bg_y; |
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305 | } else { |
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306 | $dst_y = $bg_y; |
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307 | $src_y = 0; |
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308 | $h = $img_h; |
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309 | } |
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310 | imagecopy($bg, $src, $dst_x, $dst_y, $src_x, $src_y, $w, $h); |
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311 | } |
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312 | } |
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313 | } |
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314 | |
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315 | |
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316 | |
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317 | $tmp_file = tempnam(DOMPDF_TEMP_DIR, "dompdf_img_"); |
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318 | imagepng($bg, $tmp_file); |
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319 | $this->_canvas->image($tmp_file, "png", $x, $y, $width, $height); |
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320 | unlink($tmp_file); |
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321 | } |
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322 | |
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323 | protected function _border_none($x, $y, $length, $color, $widths, $side, $corner_style = "bevel") { |
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324 | return; |
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325 | } |
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326 | |
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327 | // Border rendering functions |
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328 | protected function _border_dotted($x, $y, $length, $color, $widths, $side, $corner_style = "bevel") { |
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329 | list($top, $right, $bottom, $left) = $widths; |
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330 | |
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331 | if ( $$side < 2 ) |
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332 | $dash = array($$side, 2); |
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333 | else |
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334 | $dash = array($$side); |
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335 | |
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336 | |
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337 | switch ($side) { |
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338 | |
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339 | case "top": |
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340 | $delta = $top / 2; |
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341 | case "bottom": |
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342 | $delta = isset($delta) ? $delta : -$bottom / 2; |
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343 | $this->_canvas->line($x, $y + $delta, $x + $length, $y + $delta, $color, $$side, $dash); |
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344 | break; |
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345 | |
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346 | case "left": |
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347 | $delta = $left / 2; |
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348 | case "right": |
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349 | $delta = isset($delta) ? $delta : - $right / 2; |
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350 | $this->_canvas->line($x + $delta, $y, $x + $delta, $y + $length, $color, $$side, $dash); |
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351 | break; |
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352 | |
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353 | default: |
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354 | return; |
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355 | |
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356 | } |
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357 | } |
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358 | |
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359 | |
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360 | protected function _border_dashed($x, $y, $length, $color, $widths, $side, $corner_style = "bevel") { |
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361 | list($top, $right, $bottom, $left) = $widths; |
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362 | |
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363 | switch ($side) { |
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364 | |
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365 | case "top": |
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366 | $delta = $top / 2; |
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367 | case "bottom": |
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368 | $delta = isset($delta) ? $delta : -$bottom / 2; |
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369 | $this->_canvas->line($x, $y + $delta, $x + $length, $y + $delta, $color, $$side, array(3 * $$side)); |
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370 | break; |
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371 | |
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372 | case "left": |
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373 | $delta = $left / 2; |
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374 | case "right": |
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375 | $delta = isset($delta) ? $delta : - $right / 2; |
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376 | $this->_canvas->line($x + $delta, $y, $x + $delta, $y + $length, $color, $$side, array(3 * $$side)); |
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377 | break; |
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378 | |
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379 | default: |
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380 | return; |
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381 | } |
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382 | |
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383 | } |
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384 | |
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385 | |
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386 | protected function _border_solid($x, $y, $length, $color, $widths, $side, $corner_style = "bevel") { |
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387 | list($top, $right, $bottom, $left) = $widths; |
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388 | |
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389 | // All this polygon business is for beveled corners... |
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390 | switch ($side) { |
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391 | |
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392 | case "top": |
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393 | if ( $corner_style == "bevel" ) { |
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394 | |
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395 | $points = array($x, $y, |
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396 | $x + $length, $y, |
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397 | $x + $length - $right, $y + $top, |
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398 | $x + $left, $y + $top); |
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399 | $this->_canvas->polygon($points, $color, null, null, true); |
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400 | } else |
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401 | $this->_canvas->filled_rectangle($x, $y, $length, $top, $color); |
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402 | |
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403 | break; |
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404 | |
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405 | case "bottom": |
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406 | if ( $corner_style == "bevel" ) { |
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407 | $points = array($x, $y, |
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408 | $x + $length, $y, |
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409 | $x + $length - $right, $y - $bottom, |
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410 | $x + $left, $y - $bottom); |
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411 | $this->_canvas->polygon($points, $color, null, null, true); |
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412 | } else |
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413 | $this->_canvas->filled_rectangle($x, $y - $bottom, $length, $bottom, $color); |
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414 | |
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415 | break; |
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416 | |
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417 | case "left": |
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418 | if ( $corner_style == "bevel" ) { |
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419 | $points = array($x, $y, |
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420 | $x, $y + $length, |
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421 | $x + $left, $y + $length - $bottom, |
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422 | $x + $left, $y + $top); |
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423 | $this->_canvas->polygon($points, $color, null, null, true); |
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424 | } else |
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425 | $this->_canvas->filled_rectangle($x, $y, $left, $length, $color); |
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426 | |
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427 | break; |
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428 | |
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429 | case "right": |
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430 | if ( $corner_style == "bevel" ) { |
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431 | $points = array($x, $y, |
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432 | $x, $y + $length, |
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433 | $x - $right, $y + $length - $bottom, |
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434 | $x - $right, $y + $top); |
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435 | $this->_canvas->polygon($points, $color, null, null, true); |
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436 | } else |
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437 | $this->_canvas->filled_rectangle($x - $right, $y, $right, $length, $color); |
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438 | |
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439 | break; |
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440 | |
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441 | default: |
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442 | return; |
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443 | |
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444 | } |
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445 | |
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446 | } |
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447 | |
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448 | |
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449 | protected function _border_double($x, $y, $length, $color, $widths, $side, $corner_style = "bevel") { |
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450 | list($top, $right, $bottom, $left) = $widths; |
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451 | |
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452 | $line_width = $$side / 4; |
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453 | |
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454 | // We draw the outermost edge first. Points are ordered: outer left, |
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455 | // outer right, inner right, inner left, or outer top, outer bottom, |
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456 | // inner bottom, inner top. |
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457 | switch ($side) { |
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458 | |
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459 | case "top": |
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460 | if ( $corner_style == "bevel" ) { |
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461 | $left_line_width = $left / 4; |
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462 | $right_line_width = $right / 4; |
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463 | |
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464 | $points = array($x, $y, |
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465 | $x + $length, $y, |
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466 | $x + $length - $right_line_width, $y + $line_width, |
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467 | $x + $left_line_width, $y + $line_width,); |
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468 | $this->_canvas->polygon($points, $color, null, null, true); |
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469 | |
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470 | $points = array($x + $left - $left_line_width, $y + $top - $line_width, |
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471 | $x + $length - $right + $right_line_width, $y + $top - $line_width, |
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472 | $x + $length - $right, $y + $top, |
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473 | $x + $left, $y + $top); |
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474 | $this->_canvas->polygon($points, $color, null, null, true); |
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475 | |
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476 | } else { |
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477 | $this->_canvas->filled_rectangle($x, $y, $length, $line_width, $color); |
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478 | $this->_canvas->filled_rectangle($x, $y + $top - $line_width, $length, $line_width, $color); |
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479 | |
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480 | } |
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481 | break; |
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482 | |
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483 | case "bottom": |
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484 | if ( $corner_style == "bevel" ) { |
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485 | $left_line_width = $left / 4; |
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486 | $right_line_width = $right / 4; |
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487 | |
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488 | $points = array($x, $y, |
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489 | $x + $length, $y, |
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490 | $x + $length - $right_line_width, $y - $line_width, |
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491 | $x + $left_line_width, $y - $line_width); |
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492 | $this->_canvas->polygon($points, $color, null, null, true); |
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493 | |
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494 | $points = array($x + $left - $left_line_width, $y - $bottom + $line_width, |
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495 | $x + $length - $right + $right_line_width, $y - $bottom + $line_width, |
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496 | $x + $length - $right, $y - $bottom, |
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497 | $x + $left, $y - $bottom); |
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498 | $this->_canvas->polygon($points, $color, null, null, true); |
---|
499 | |
---|
500 | } else { |
---|
501 | $this->_canvas->filled_rectangle($x, $y - $line_width, $length, $line_width, $color); |
---|
502 | $this->_canvas->filled_rectangle($x, $y - $bottom, $length, $line_width, $color); |
---|
503 | } |
---|
504 | |
---|
505 | break; |
---|
506 | |
---|
507 | case "left": |
---|
508 | if ( $corner_style == "bevel" ) { |
---|
509 | $top_line_width = $top / 4; |
---|
510 | $bottom_line_width = $bottom / 4; |
---|
511 | |
---|
512 | $points = array($x, $y, |
---|
513 | $x, $y + $length, |
---|
514 | $x + $line_width, $y + $length - $bottom_line_width, |
---|
515 | $x + $line_width, $y + $top_line_width); |
---|
516 | $this->_canvas->polygon($points, $color, null, null, true); |
---|
517 | |
---|
518 | $points = array($x + $left - $line_width, $y + $top - $top_line_width, |
---|
519 | $x + $left - $line_width, $y + $length - $bottom + $bottom_line_width, |
---|
520 | $x + $left, $y + $length - $bottom, |
---|
521 | $x + $left, $y + $top); |
---|
522 | $this->_canvas->polygon($points, $color, null, null, true); |
---|
523 | |
---|
524 | } else { |
---|
525 | $this->_canvas->filled_rectangle($x, $y, $line_width, $length, $color); |
---|
526 | $this->_canvas->filled_rectangle($x + $left - $line_width, $y, $line_width, $length, $color); |
---|
527 | } |
---|
528 | |
---|
529 | break; |
---|
530 | |
---|
531 | case "right": |
---|
532 | if ( $corner_style == "bevel" ) { |
---|
533 | $top_line_width = $top / 4; |
---|
534 | $bottom_line_width = $bottom / 4; |
---|
535 | |
---|
536 | |
---|
537 | $points = array($x, $y, |
---|
538 | $x, $y + $length, |
---|
539 | $x - $line_width, $y + $length - $bottom_line_width, |
---|
540 | $x - $line_width, $y + $top_line_width); |
---|
541 | $this->_canvas->polygon($points, $color, null, null, true); |
---|
542 | |
---|
543 | $points = array($x - $right + $line_width, $y + $top - $top_line_width, |
---|
544 | $x - $right + $line_width, $y + $length - $bottom + $bottom_line_width, |
---|
545 | $x - $right, $y + $length - $bottom, |
---|
546 | $x - $right, $y + $top); |
---|
547 | $this->_canvas->polygon($points, $color, null, null, true); |
---|
548 | |
---|
549 | } else { |
---|
550 | $this->_canvas->filled_rectangle($x - $line_width, $y, $line_width, $length, $color); |
---|
551 | $this->_canvas->filled_rectangle($x - $right, $y, $line_width, $length, $color); |
---|
552 | } |
---|
553 | |
---|
554 | break; |
---|
555 | |
---|
556 | default: |
---|
557 | return; |
---|
558 | |
---|
559 | } |
---|
560 | |
---|
561 | } |
---|
562 | |
---|
563 | protected function _border_groove($x, $y, $length, $color, $widths, $side, $corner_style = "bevel") { |
---|
564 | list($top, $right, $bottom, $left) = $widths; |
---|
565 | |
---|
566 | $half_widths = array($top / 2, $right / 2, $bottom / 2, $left / 2); |
---|
567 | |
---|
568 | $this->_border_inset($x, $y, $length, $color, $half_widths, $side); |
---|
569 | |
---|
570 | switch ($side) { |
---|
571 | |
---|
572 | case "top": |
---|
573 | $x += $left / 2; |
---|
574 | $y += $top / 2; |
---|
575 | $length -= $left / 2 + $right / 2; |
---|
576 | break; |
---|
577 | |
---|
578 | case "bottom": |
---|
579 | $x += $left / 2; |
---|
580 | $y -= $bottom / 2; |
---|
581 | $length -= $left / 2 + $right / 2; |
---|
582 | break; |
---|
583 | |
---|
584 | case "left": |
---|
585 | $x += $left / 2; |
---|
586 | $y += $top / 2; |
---|
587 | $length -= $top / 2 + $bottom / 2; |
---|
588 | break; |
---|
589 | |
---|
590 | case "right": |
---|
591 | $x -= $right / 2; |
---|
592 | $y += $top / 2; |
---|
593 | $length -= $top / 2 + $bottom / 2; |
---|
594 | break; |
---|
595 | |
---|
596 | default: |
---|
597 | return; |
---|
598 | |
---|
599 | } |
---|
600 | |
---|
601 | $this->_border_outset($x, $y, $length, $color, $half_widths, $side); |
---|
602 | |
---|
603 | } |
---|
604 | |
---|
605 | protected function _border_ridge($x, $y, $length, $color, $widths, $side, $corner_style = "bevel") { |
---|
606 | list($top, $right, $bottom, $left) = $widths; |
---|
607 | |
---|
608 | $half_widths = array($top / 2, $right / 2, $bottom / 2, $left / 2); |
---|
609 | |
---|
610 | $this->_border_outset($x, $y, $length, $color, $half_widths, $side); |
---|
611 | |
---|
612 | switch ($side) { |
---|
613 | |
---|
614 | case "top": |
---|
615 | $x += $left / 2; |
---|
616 | $y += $top / 2; |
---|
617 | $length -= $left / 2 + $right / 2; |
---|
618 | break; |
---|
619 | |
---|
620 | case "bottom": |
---|
621 | $x += $left / 2; |
---|
622 | $y -= $bottom / 2; |
---|
623 | $length -= $left / 2 + $right / 2; |
---|
624 | break; |
---|
625 | |
---|
626 | case "left": |
---|
627 | $x += $left / 2; |
---|
628 | $y += $top / 2; |
---|
629 | $length -= $top / 2 + $bottom / 2; |
---|
630 | break; |
---|
631 | |
---|
632 | case "right": |
---|
633 | $x -= $right / 2; |
---|
634 | $y += $top / 2; |
---|
635 | $length -= $top / 2 + $bottom / 2; |
---|
636 | break; |
---|
637 | |
---|
638 | default: |
---|
639 | return; |
---|
640 | |
---|
641 | } |
---|
642 | |
---|
643 | $this->_border_inset($x, $y, $length, $color, $half_widths, $side); |
---|
644 | |
---|
645 | } |
---|
646 | |
---|
647 | protected function _tint($c) { |
---|
648 | if ( !is_numeric($c) ) |
---|
649 | return $c; |
---|
650 | |
---|
651 | return min(1, $c + 0.66); |
---|
652 | } |
---|
653 | |
---|
654 | protected function _shade($c) { |
---|
655 | if ( !is_numeric($c) ) |
---|
656 | return $c; |
---|
657 | |
---|
658 | return max(0, $c - 0.66); |
---|
659 | } |
---|
660 | |
---|
661 | protected function _border_inset($x, $y, $length, $color, $widths, $side, $corner_style = "bevel") { |
---|
662 | list($top, $right, $bottom, $left) = $widths; |
---|
663 | |
---|
664 | switch ($side) { |
---|
665 | |
---|
666 | case "top": |
---|
667 | case "left": |
---|
668 | $shade = array_map(array($this, "_shade"), $color); |
---|
669 | $this->_border_solid($x, $y, $length, $shade, $widths, $side); |
---|
670 | break; |
---|
671 | |
---|
672 | case "bottom": |
---|
673 | case "right": |
---|
674 | $tint = array_map(array($this, "_tint"), $color); |
---|
675 | $this->_border_solid($x, $y, $length, $tint, $widths, $side); |
---|
676 | break; |
---|
677 | |
---|
678 | default: |
---|
679 | return; |
---|
680 | } |
---|
681 | } |
---|
682 | |
---|
683 | protected function _border_outset($x, $y, $length, $color, $widths, $side, $corner_style = "bevel") { |
---|
684 | list($top, $right, $bottom, $left) = $widths; |
---|
685 | |
---|
686 | switch ($side) { |
---|
687 | case "top": |
---|
688 | case "left": |
---|
689 | $tint = array_map(array($this, "_tint"), $color); |
---|
690 | $this->_border_solid($x, $y, $length, $tint, $widths, $side); |
---|
691 | break; |
---|
692 | |
---|
693 | case "bottom": |
---|
694 | case "right": |
---|
695 | $shade = array_map(array($this, "_shade"), $color); |
---|
696 | $this->_border_solid($x, $y, $length, $shade, $widths, $side); |
---|
697 | break; |
---|
698 | |
---|
699 | default: |
---|
700 | return; |
---|
701 | |
---|
702 | } |
---|
703 | } |
---|
704 | |
---|
705 | //........................................................................ |
---|
706 | |
---|
707 | |
---|
708 | } |
---|
709 | |
---|
710 | ?> |
---|