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<?php
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// $Id: color.image.inc,v 1.4.2.3 2008/08/20 16:45:41 skiquel Exp $
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/**
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* @file
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* Provides image manipulation functions
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*/
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/**
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* Generate images
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*
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* @param $theme
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* String with theme name
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* @param $info
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* Array with theme info
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* @param $paths
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* Array containing file paths to files
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* @param $palette
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* Array of hex values. i.e. array('#ffffff', '#000000')
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* @return
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* Array of generated image file paths
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*/
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function _color_render_images($theme, &$info, &$paths, $palette) {
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module_load_include('inc', 'color', 'color.algorithms');
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module_load_include('inc', 'color', 'color.database');
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$info = color_get_theme_info($theme);
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foreach ($info['img'] as $img) {
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// Prepare template image.
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$source = $paths['source'] .'/'. $img['file'];
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$source = imagecreatefrompng($source);
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imagealphablending($source, FALSE);
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imagesavealpha($source, TRUE);
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$width = imagesx($source);
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$height = imagesy($source);
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// Prepare target buffer.
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$target = imagecreatetruecolor($width, $height);
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imagealphablending($target, TRUE);
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// Fill regions of solid color.
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if (isset($img['fill']) && count($img['fill']) > 0) {
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foreach ($img['fill'] as $fill) {
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imagefilledrectangle($target, $fill[0], $fill[1], $fill[0] + $fill[2], $fill[1] + $fill[3], _color_gd($target, $palette[$fill[4]]));
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}
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}
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// Render gradient.
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if (isset($img['gradient']) && count($img['gradient']) > 0) {
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foreach ($img['gradient'] as $gradient) {
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for ($y = 0; $y < $gradient[3]; ++$y) {
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$color = _color_blend($target, $palette[$gradient[4]], $palette[$gradient[5]], $y / ($gradient[3] - 1));
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imagefilledrectangle($target, $gradient[0], $gradient[1] + $y, $gradient[0] + $gradient[2], $gradient[1] + $y + 1, $color);
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}
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}
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}
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// Blend over template.
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imagecopy($target, $source, 0, 0, 0, 0, $width, $height);
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// Clean up template image.
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imagedestroy($source);
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// Cut out slices.
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foreach ($img['slices'] as $file => $coord) {
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list($x, $y, $width, $height) = $coord;
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$base = basename($file);
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$image = $paths['target'] . $base;
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// Cut out slice.
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if ($file == 'screenshot.png') {
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$slice = imagecreatetruecolor(150, 90);
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imagecopyresampled($slice, $target, 0, 0, $x, $y, 150, 90, $width, $height);
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variable_set('color_'. $theme .'_screenshot', $image);
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}
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else {
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$slice = imagecreatetruecolor($width, $height);
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imagealphablending($target, TRUE);
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imagecopy($slice, $target, 0, 0, $x, $y, $width, $height);
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}
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// Save image.
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if (isset($img['transparent_color']) && !empty($img['transparent_color'])) {
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imagecolortransparent($slice, $black);
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}
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imagepng($slice, $image);
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imagedestroy($slice);
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$paths['files'][] = $image;
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// Set standard file permissions for webserver-generated files
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@chmod(realpath($image), 0664);
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// Build before/after map of image paths.
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$paths['map'][$file] = $base;
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}
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// Clean up target buffer.
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imagedestroy($target);
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}
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return $paths;
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}
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