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> [PHP] Problem z shadow
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post 25.06.2013, 20:28:10
Post #1





Goście
Witam,

Chciałbym poprawić cień (Linia 71) pod generowanym tekstem. Chciałbym aby był w postaci rozmycia w CSS wygląda on tak: text-shadow: 1px 1px 1px #000, 3px 3px 5px rgb(3, 3, 3);

Jak uzyskać taki sam efekt w poniższym skrypcie?

[PHP] pobierz, plaintext 
  1. <?php
  2.  
  3. function hex2rgb($hex) {
  4.    $hex = str_replace("#", "", $hex);
  5.  
  6.    if(strlen($hex) == 3) {
  7.       $r = hexdec(substr($hex,0,1).substr($hex,0,1));
  8.       $g = hexdec(substr($hex,1,1).substr($hex,1,1));
  9.       $b = hexdec(substr($hex,2,1).substr($hex,2,1));
  10.    } else {
  11.       $r = hexdec(substr($hex,0,2));
  12.       $g = hexdec(substr($hex,2,2));
  13.       $b = hexdec(substr($hex,4,2));
  14.    }
  15.    $rgb = array($r, $g, $b);
  16.    //return implode(",", $rgb); // returns the rgb values separated by commas
  17.    return $rgb; // returns an array with the rgb values
  18. }
  19.  
  20. class QuoteImage {
  21. 	var $sourceImg;
  22. 	var $logoImg;
  23. 	var $outImg;
  24. 	var $targetWidth = 500;
  25. 	var $source_attr = array();
  26. 	var $font = 'fonts/gunplay.ttf';
  27. 	var $fontSize = 20;
  28. 	var $txt = array();
  29. 	var $colors = array();
  30. 	var $align;
  31. 	var $valign;
  32. 	var $image_name;
  33. 	var $transparentBG;
  34.  
  35. 	function __construct($image_name, $txt, $colors, $fontSize, $align, $valign, $transparentBG) {
  36. 		$this->image_name = $image_name;
  37. 		$this->transparentBG = $transparentBG;
  38.  
  39.  
  40. 		$ext = explode('.',$this->image_name);
  41. 		$ext = $ext[count($ext)-1];
  42.  
  43. 		$name = substr(md5(rand()), 0, 15);
  44.  
  45. 		switch($ext) {
  46. 			case 'jpeg':
  47. 				$this->sourceImg = imagecreatefromjpeg($image_name);
  48. 				$name .= '.jpg';
  49. 				break;	
  50. 			case 'jpg':
  51. 				$this->sourceImg = imagecreatefromjpeg($image_name);
  52. 				$name .= '.jpg';
  53. 				break;	
  54. 			case 'gif':
  55. 				$this->sourceImg = imagecreatefromgif($image_name);
  56. 				$name .= '.gif';
  57. 				break;	
  58. 			case 'png':				
  59. 				$this->sourceImg = imagecreatefrompng($image_name);
  60. 				$name .= '.png';
  61. 				break;	
  62. 		}
  63.  
  64. 		$this->image_name = $name;
  65.  
  66. 		$this->logoImg = imagecreatefrompng(Q.'img/logo.png');
  67.  
  68. 		$colorBG = hex2rgb($colors['bg']);
  69. 		$colorText = hex2rgb($colors['text']);
  70.  
  71. 		$colors['bg'] = imagecolorallocate($this->sourceImg, $colorBG[0],$colorBG[1], $colorBG[2]);
  72. 		$colors['text'] = imagecolorallocate($this->sourceImg, $colorText[0], $colorText[1], $colorText[2]);		
  73. 		$colors['shadow'] = imagecolorallocate($this->sourceImg, 51, 51, 51);
  74.  
  75. 		$this->source_attr = array('w' => imagesx($this->sourceImg), 'h' => imagesy($this->sourceImg));
  76. 		$this->txt = $txt;
  77. 		$this->font = Q.$this->font;
  78. 		$this->fontSize = $fontSize;
  79. 		$this->colors = $colors;
  80.  
  81. 		$this->align = $align;
  82. 		$this->valign = $valign;
  83. 	}
  84.  
  85. 	public function prepare() {
  86. 		$target_height = $this->source_attr['h'];
  87. 		if($this->targetWidth < $this->source_attr['w']) {
  88. 			$scale_ratio = $this->source_attr['w']/$this->targetWidth;	
  89. 			$target_height = $this->source_attr['h']*$scale_ratio;
  90. 		}
  91.  
  92. 		//Create our basic image stream 300x300 pixels
  93. 		$this->outImg = imagecreatetruecolor($this->targetWidth , $target_height);
  94. 		//$this->tempImg = imagecreatetruecolor($this->targetWidth , $target_height);
  95.  
  96. 		$overlay = imagecreatefrompng(Q.'img/overlay.png');
  97.  
  98. 		imagecopyresampled($this->outImg, $this->sourceImg, 0,0,0,0, 
  99. 							$this->targetWidth, $target_height, 
  100. 							$this->source_attr['w'], $this->source_attr['h']);
  101.  
  102. 		imagecopyresampled($this->outImg, $overlay, 0,0,0,0, 
  103. 							$this->targetWidth, $target_height, 
  104. 							1, 1);
  105.  
  106. 	}
  107.  
  108. 	public function alignTxt($line = 0, $align = 'center', $valign = 'middle') {
  109. 		$bbox = imagettfbbox($this->fontSize,0,$this->font,$this->txt[$line]);		
  110.  
  111. 		switch($align) {
  112. 			case 'left':
  113. 			// align left
  114. 				$left = 18;
  115. 				break;
  116. 			// align right
  117. 			case 'right':	
  118. 				$left = imagesx($this->outImg)-($bbox[4]+18);		
  119. 				break;
  120. 			// align center
  121. 			case 'center':			
  122. 				$left = $bbox[0] + (imagesx($this->outImg) / 2) - ($bbox[4] / 2);
  123. 				break;
  124. 		}
  125.  
  126. 		switch($valign) {
  127. 			case 'top':
  128. 			// align top
  129. 				$top = imagesy($this->logoImg);
  130. 				break;
  131. 			// align bottom
  132. 			case 'bottom':				
  133. 				$margin = floor((count($this->txt)*($this->fontSize*1.33+13)))+imagesy($this->logoImg)-18;	
  134. 				$top = imagesy($this->outImg)-($bbox[5]+$this->fontSize*1.33) - $margin;
  135. 				break;
  136. 			// align middle
  137. 			case 'middle':		
  138. 				$margin = floor((count($this->txt)*($this->fontSize*1.33+13))+imagesy($this->logoImg)-10)/2;	
  139. 				$top = $bbox[1] + (imagesy($this->outImg) / 2) - ($bbox[5] / 2) - $margin;
  140. 				break;
  141. 		}
  142.  
  143. 		$return = array('left' => $left, 'top' => $top, 'bbox' => $bbox);
  144. 		return $return;
  145. 	}
  146.  
  147. 	public function insertLogo($align = 'center', $valign = 'middle') {
  148. 		switch($align) {
  149. 			case 'left':
  150. 			// align left
  151. 				$left = 10;
  152. 				break;
  153. 			// align right
  154. 			case 'right':	
  155. 				$left = imagesx($this->outImg)-(imagesx($this->logoImg)+10);		
  156. 				break;
  157. 			// align center
  158. 			case 'center':			
  159. 				$left = floor((imagesx($this->outImg)-imagesx($this->logoImg)) / 2);
  160. 				break;
  161. 		}
  162.  
  163. 		switch($valign) {
  164. 			case 'top':
  165. 			// align top
  166. 				$top = 10;
  167. 				break;
  168. 			// align bottom
  169. 			case 'bottom':				
  170. 				$margin = floor((count($this->txt)*($this->fontSize*1.33+13)))+imagesy($this->logoImg)+28;	
  171. 				$top = imagesy($this->outImg) - $margin;
  172. 				break;
  173. 			// align middle
  174. 			case 'middle':		
  175. 				$margin = floor((count($this->txt)*($this->fontSize*1.33+13))+imagesy($this->logoImg)-10)/2;	
  176. 				$top = floor((imagesy($this->outImg)-imagesy($this->logoImg)) / 2) - $margin;
  177. 				break;
  178. 		}
  179.  
  180. 		$return = array('left' => $left, 'top' => $top);
  181. 		return $return;
  182. 	}
  183.  
  184. 	public function output() {
  185. 		$margin = 0;
  186.  
  187. 		$logo = $this->insertLogo($this->align, $this->valign);
  188.  
  189. 		imagecopyresampled($this->outImg, $this->logoImg, $logo['left'],$logo['top'], 0,0, 
  190. 							imagesx($this->logoImg), imagesy($this->logoImg), 
  191. 							imagesx($this->logoImg), imagesy($this->logoImg));
  192.  
  193. 		$margin = imagesy($this->logoImg);
  194.  
  195. 		for($i=0;$i<count($this->txt);$i++) {
  196. 			$align = $this->alignTxt($i, $this->align, $this->valign);		
  197.  
  198. 	if($i == 0) {
  199. 	$bg_positions = imagettftext($this->outImg, $this->fontSize, 0, $align['left'], $align['top']+ $margin, $this->colors['text'], $this->font, $this->txt[$i]);
  200. 	} else {
  201. 	$bg_positions = imagettftext($this->outImg, $this->fontSize, 0, $align['left'], $margin, $this->colors['text'], $this->font, $this->txt[$i]);
  202. 	}
  203.  
  204. 			$x = $bg_positions[0]-6;
  205. 			$x1 = $bg_positions[2]+6;
  206. 			$y = $bg_positions[5]-7;
  207. 			$y1 = $bg_positions[3]+7;
  208. 			//$y = 
  209. 			if($this->transparentBG == "true") {
  210. 				imagefilledrectangle($this->outImg, $x, $y, $x1, $y1, $this->colors['bg']);	
  211. 			} 
  212.  
  213. 			if($i == 0) {				
  214. 				if($this->transparentBG == "false") {
  215. 					imagettftext($this->outImg, $this->fontSize, 0, $align['left']+2, $align['top']+ $margin+2, $this->colors['shadow'], $this->font, $this->txt[$i]);
  216. 				}
  217. 				imagettftext($this->outImg, $this->fontSize, 0, $align['left'], $align['top']+ $margin, $this->colors['text'], $this->font, $this->txt[$i]);
  218. 			} else {
  219. 				if($this->transparentBG == "false") {
  220. 					imagettftext($this->outImg, $this->fontSize, 0, $align['left']+2, $margin+2, $this->colors['shadow'], $this->font, $this->txt[$i]);
  221. 				}
  222. 				imagettftext($this->outImg, $this->fontSize, 0, $align['left'], $margin, $this->colors['text'], $this->font, $this->txt[$i]);
  223. 			}
  224. 			//Set the content type
  225. 			$margin = ($y1+$this->fontSize+1);
  226. 		}
  227. 		//header('content-type: image/png');
  228.  
  229. 		imagepng($this->outImg, WP_CONTENT_DIR.'/uploads/cytaty/'.$this->image_name);
  230.  
  231. 		imagedestroy($this->outImg);
  232. 	}
  233. }
  234.  
  235. ?>
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