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1 <?php |
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2 /** |
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3 * Zend Framework |
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4 * |
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5 * LICENSE |
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6 * |
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7 * This source file is subject to the new BSD license that is bundled |
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8 * with this package in the file LICENSE.txt. |
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9 * It is also available through the world-wide-web at this URL: |
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10 * http://framework.zend.com/license/new-bsd |
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11 * If you did not receive a copy of the license and are unable to |
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12 * obtain it through the world-wide-web, please send an email |
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13 * to license@zend.com so we can send you a copy immediately. |
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14 * |
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15 * @category Zend |
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16 * @package Zend_Pdf |
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17 * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) |
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18 * @license http://framework.zend.com/license/new-bsd New BSD License |
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19 * @version $Id: Style.php 20096 2010-01-06 02:05:09Z bkarwin $ |
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20 */ |
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21 |
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22 require_once 'Zend/Pdf/Canvas/Abstract.php'; |
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23 |
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24 /** |
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25 * Canvas is an abstract rectangle drawing area which can be dropped into |
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26 * page object at specified place. |
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27 * |
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28 * @package Zend_Pdf |
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29 * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) |
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30 * @license http://framework.zend.com/license/new-bsd New BSD License |
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31 */ |
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32 class Zend_Pdf_Canvas extends Zend_Pdf_Canvas_Abstract |
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33 { |
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34 /** |
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35 * Canvas procedure sets. |
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36 * |
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37 * Allowed values: 'PDF', 'Text', 'ImageB', 'ImageC', 'ImageI'. |
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38 * |
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39 * @var array |
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40 */ |
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41 protected $_procSet = array(); |
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42 |
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43 /** |
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44 * Canvas width expressed in default user space units (1/72 inch) |
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45 * |
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46 * @var float |
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47 */ |
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48 protected $_width; |
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49 |
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50 /** |
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51 * Canvas height expressed in default user space units (1/72 inch) |
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52 * |
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53 * @var float |
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54 */ |
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55 protected $_height; |
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56 |
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57 protected $_resources = array('Font' => array(), |
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58 'XObject' => array(), |
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59 'ExtGState' => array()); |
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60 |
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61 /** |
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62 * Object constructor |
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63 * |
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64 * @param float $width |
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65 * @param float $height |
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66 */ |
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67 public function __construct($width, $height) |
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68 { |
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69 $this->_width = $width; |
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70 $this->_height = $height; |
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71 } |
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72 |
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73 /** |
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74 * Add procedure set to the canvas description |
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75 * |
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76 * @param string $procSetName |
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77 */ |
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78 protected function _addProcSet($procSetName) |
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79 { |
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80 $this->_procset[$procSetName] = 1; |
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81 } |
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82 |
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83 /** |
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84 * Attach resource to the canvas |
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85 * |
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86 * Method returns a name of the resource which can be used |
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87 * as a resource reference within drawing instructions stream |
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88 * Allowed types: 'ExtGState', 'ColorSpace', 'Pattern', 'Shading', |
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89 * 'XObject', 'Font', 'Properties' |
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90 * |
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91 * @param string $type |
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92 * @param Zend_Pdf_Resource $resource |
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93 * @return string |
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94 */ |
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95 protected function _attachResource($type, Zend_Pdf_Resource $resource) |
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96 { |
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97 // Check, that resource is already attached to resource set. |
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98 $resObject = $resource->getResource(); |
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99 foreach ($this->_resources[$type] as $resName => $collectedResObject) { |
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100 if ($collectedResObject === $resObject) { |
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101 return $resName; |
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102 } |
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103 } |
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104 |
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105 $idCounter = 1; |
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106 do { |
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107 $newResName = $type[0] . $idCounter++; |
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108 } while (isset($this->_resources[$type][$newResName])); |
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109 |
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110 $this->_resources[$type][$newResName] = $resObject; |
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111 |
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112 return $newResName; |
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113 } |
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114 |
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115 /** |
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116 * Returns dictionaries of used resources. |
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117 * |
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118 * Used for canvas implementations interoperability |
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119 * |
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120 * Structure of the returned array: |
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121 * array( |
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122 * <resTypeName> => array( |
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123 * <resName> => <Zend_Pdf_Resource object>, |
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124 * <resName> => <Zend_Pdf_Resource object>, |
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125 * <resName> => <Zend_Pdf_Resource object>, |
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126 * ... |
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127 * ), |
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128 * <resTypeName> => array( |
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129 * <resName> => <Zend_Pdf_Resource object>, |
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130 * <resName> => <Zend_Pdf_Resource object>, |
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131 * <resName> => <Zend_Pdf_Resource object>, |
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132 * ... |
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133 * ), |
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134 * ... |
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135 * 'ProcSet' => array() |
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136 * ) |
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137 * |
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138 * where ProcSet array is a list of used procedure sets names (strings). |
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139 * Allowed procedure set names: 'PDF', 'Text', 'ImageB', 'ImageC', 'ImageI' |
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140 * |
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141 * @internal |
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142 * @return array |
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143 */ |
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144 public function getResources() |
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145 { |
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146 $this->_resources['ProcSet'] = array_keys($this->_procSet); |
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147 return $this->_resources; |
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148 } |
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149 |
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150 /** |
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151 * Get drawing instructions stream |
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152 * |
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153 * It has to be returned as a PDF stream object to make it reusable. |
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154 * |
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155 * @internal |
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156 * @returns Zend_Pdf_Resource_ContentStream |
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157 */ |
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158 public function getContents() |
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159 { |
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160 /** @todo implementation */ |
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161 } |
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162 |
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163 /** |
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164 * Return the height of this page in points. |
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165 * |
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166 * @return float |
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167 */ |
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168 public function getHeight() |
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169 { |
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170 return $this->_height; |
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171 } |
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172 |
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173 /** |
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174 * Return the width of this page in points. |
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175 * |
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176 * @return float |
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177 */ |
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178 public function getWidth() |
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179 { |
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180 return $this->_width; |
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181 } |
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182 } |