/**
* Redirect (mean read from file and output) to CSS-file of current map.
* Almost generate header-values.
*
* @param array $map_cfg map-config array
*
* @return bool is redirect done
*/
public static function redirect($map_cfg)
{
$filename = self::get_valid_css_source($map_cfg, isset($map_cfg['attach']));
if ($filename === false) {
return false;
}
//---------------------------------------------------------------------
$cache_timeout = qpimg_config::get_option('cache_time_expire');
$headers = array();
$headers['Expires'] = gmdate('D, d M Y H:i:s \\G\\M\\T', time() + $cache_timeout);
$headers['Last-Modified'] = gmdate('D, d M Y H:i:s \\G\\M\\T', filemtime($filename));
$headers['ETag'] = "\"qpimg-{$map_cfg['id']}-{$map_cfg['hash']}\"";
//---------------------------------------------------------------------
$if_none_match = isset($_SERVER['HTTP_IF_NONE_MATCH']) ? stripslashes($_SERVER['HTTP_IF_NONE_MATCH']) : false;
$if_modified_since = isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) ? stripslashes($_SERVER['HTTP_IF_MODIFIED_SINCE']) : false;
if ($if_none_match && $if_none_match == $headers['ETag']) {
$headers[':Response-Code'] = 304;
$filename = false;
} elseif ($if_modified_since && $if_modified_since == $headers['Last-Modified']) {
$headers[':Response-Code'] = 304;
$filename = false;
} else {
$headers['Content-Type'] = 'text/css';
$headers['Cache-Control'] = "max-age={$cache_timeout}, public, must-revalidate";
}
qpimg_utils::send_headers($headers);
if ($filename !== false) {
@readfile($filename);
}
return true;
}
/**
* Generate css & sprite (image) for single map
*
* @param array $map_cfg map-config array
*
* @return bool status
*/
public static function pack($map_cfg)
{
//---------------------------------------------------------------------
// PreCheck incoming data
if (is_array($map_cfg['objects']) === false) {
$map_cfg['objects'] = array();
}
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
if (isset($map_cfg['verbose_check']) === false) {
$map_cfg['verbose_check'] = false;
}
$map_cfg['verbose_check'] = (bool) $map_cfg['verbose_check'];
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
$map_cfg['save_format'] = strtolower($map_cfg['save_format']);
if (in_array($map_cfg['save_format'], array('png', 'gif', 'jpg')) === false) {
$map_cfg['save_format'] = 'png';
}
//---------------------------------------------------------------------
self::prepare_media_items($map_cfg);
if ($map_cfg['objects:dataURI_files_count'] == 0) {
// if no dataURI media-items -> then no need proecee MODE_DATAURI_REJECT
$process_modes = array(self::MODE_STANDARD);
} else {
$process_modes = array(self::MODE_STANDARD, self::MODE_DATAURI_REJECT);
}
foreach ($process_modes as $mode) {
switch ($mode) {
case self::MODE_STANDARD:
$css_filename = qpimg_cache::gen_filename($map_cfg, 'css', qpimg::CSS_FILE_KEY_DEFAULT);
$sprite_filename = qpimg_cache::gen_filename($map_cfg, $map_cfg['save_format'], qpimg::SPRITE_FILE_KEY_DEFAULT);
$sprite_url = qpimg_cache::gen_filename($map_cfg, $map_cfg['save_format'], qpimg::SPRITE_FILE_KEY_DEFAULT, true);
break;
case self::MODE_DATAURI_REJECT:
$css_filename = qpimg_cache::gen_filename($map_cfg, 'css', qpimg::CSS_FILE_KEY_DATAURI_REJECT);
$sprite_filename = qpimg_cache::gen_filename($map_cfg, $map_cfg['save_format'], qpimg::SPRITE_FILE_KEY_DATAURI_REJECT);
$sprite_url = qpimg_cache::gen_filename($map_cfg, $map_cfg['save_format'], qpimg::SPRITE_FILE_KEY_DATAURI_REJECT, true);
break;
}
//---------------------------------------------------------------------
// Set positions of each media-item-element for sprite
switch ($map_cfg['orientation']) {
case 'static':
default:
$set_position_funcname = 'set_position_static';
$css_bg_repeat_style = 'no-repeat';
break;
case 'repeat_x':
$set_position_funcname = 'set_position_repeat_x';
$css_bg_repeat_style = 'repeat-x';
break;
case 'repeat_y':
$set_position_funcname = 'set_position_repeat_y';
$css_bg_repeat_style = 'repeat-y';
break;
}
list($pos_media_items, $img_width, $img_height) = self::$set_position_funcname($map_cfg, $mode);
//---------------------------------------------------------------------
// Save CSS data (by mode)
$css_data = array();
if (count($pos_media_items) > 0) {
$css_data[':main_sprite']['background-image'] = "url('{$sprite_url}')";
$css_data[':main_sprite']['background-repeat'] = $css_bg_repeat_style;
$css_data[':main_sprite'][':css-selector'] = array();
}
// Generate crash rules
foreach ($map_cfg['objects:items'] as $media_id => $media_item) {
if ($media_item->is_crashed() === false) {
continue;
}
$item_css_data = array();
$item_css_data['background-image'] = 'none !important';
$item_css_data['background-color'] = '#800000';
$css_data[qpimg::get_obj_css_selector($map_cfg['id'], $media_id, $map_cfg)] = $item_css_data;
}
// Generate items data
foreach ($pos_media_items as $media_id => $media_item) {
$item_css_data = array();
$item_css_data['background-position'] = -($media_item->get('left') + $media_item->get('space-left')) . "px " . -($media_item->get('top') + $media_item->get('space-top')) . "px";
self::prepare_item_css($item_css_data, $media_item);
$css_data[':main_sprite'][':css-selector'] = array_merge($css_data[':main_sprite'][':css-selector'], $item_css_data[':css-selector']);
$css_data[qpimg::get_obj_css_selector($map_cfg['id'], $media_id, $map_cfg)] = $item_css_data;
}
unset($item_css_data);
// Generate data:URI content (for MODE_STANDARD)
if ($mode == self::MODE_STANDARD) {
if (is_array($map_cfg['objects:items']) === true) {
foreach ($map_cfg['objects:items'] as $media_id => $media_item) {
if ($media_item->is_crashed() === true) {
continue;
}
if ($media_item->get('data:URI') === false) {
continue;
}
$item_css_data = array();
self::prepare_item_css($item_css_data, $media_item);
switch ($media_item->get('imagetype')) {
case IMAGETYPE_GIF:
$mimetype = 'image/gif';
break;
case IMAGETYPE_JPEG:
$mimetype = 'image/jpeg';
break;
case IMAGETYPE_PNG:
$mimetype = 'image/png';
break;
}
$item_css_data['background-image'] = "url(" . "data:{$mimetype};" . "base64," . base64_encode(@file_get_contents($media_item->get('source'))) . ")";
$css_data[qpimg::get_obj_css_selector($map_cfg['id'], $media_id, $map_cfg)] = $item_css_data;
}
}
}
$css_hf = @fopen($css_filename, 'w');
if (is_resource($css_hf) === false) {
self::drop_temporary_media();
return false;
}
ksort($css_data);
foreach ($css_data as $css_selector => $item_css_data) {
if ($css_selector == ':main_sprite') {
$css_selector = qpimg::get_map_css_selector($map_cfg['id'], $map_cfg);
}
fwrite($css_hf, ".{$css_selector}");
if (is_array($item_css_data[':css-selector']) === true) {
foreach ($item_css_data[':css-selector'] as $sub_css_selector) {
$sub_css_selector = trim($sub_css_selector);
if ($sub_css_selector == '') {
continue;
}
fwrite($css_hf, ", {$sub_css_selector}");
}
}
fwrite($css_hf, " { ");
foreach ($item_css_data as $css_attr_key => $css_attr_value) {
if ($css_attr_key[0] == ':') {
continue;
}
fwrite($css_hf, "{$css_attr_key}: {$css_attr_value}; ");
}
fwrite($css_hf, "}\n");
}
fclose($css_hf);
//---------------------------------------------------------------------
// Make SPRITE (image)
if (count($pos_media_items) > 0) {
$sprite_img = @imagecreatetruecolor($img_width, $img_height);
if (is_resource($sprite_img) === false) {
self::drop_temporary_media();
return false;
}
imagealphablending($sprite_img, false);
imagesavealpha($sprite_img, true);
if (isset($map_cfg['bgcolor']) === true && $map_cfg['bgcolor']) {
list($color_r, $color_g, $color_b) = qpimg_utils::color2rgb($map_cfg['bgcolor']);
imagefill($sprite_img, 0, 0, imagecolorallocate($sprite_img, $color_r, $color_g, $color_b));
unset($color_r, $color_g, $color_b);
} else {
imagefill($sprite_img, 0, 0, imagecolorallocatealpha($sprite_img, 0, 0, 0, 127));
}
//---------------------------------------------------------------------
if (isset($map_cfg['transparent_color']) === true) {
list($color_r, $color_g, $color_b) = qpimg_utils::color2rgb($map_cfg['transparent_color']);
imagecolortransparent($sprite_img, imagecolorallocate($sprite_img, $color_r, $color_g, $color_b));
unset($color_r, $color_g, $color_b);
}
//---------------------------------------------------------------------
// Copy images in sprite & save css attributes for each element
foreach ($pos_media_items as $media_id => $media_item) {
$safe_image_source = self::parse_media_source($media_item->get('source'), $map_cfg['id']);
if ($safe_image_source === false) {
continue;
}
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - -
switch ($media_item->get('imagetype')) {
case IMAGETYPE_GIF:
$tmp_img = @imagecreatefromgif($safe_image_source);
break;
case IMAGETYPE_JPEG:
$tmp_img = @imagecreatefromjpeg($safe_image_source);
break;
case IMAGETYPE_PNG:
$tmp_img = @imagecreatefrompng($safe_image_source);
break;
}
if (is_resource($tmp_img) === false) {
continue;
}
$src_x = 0;
$src_y = 0;
$src_w = $media_item->get('etalon-width');
$src_h = $media_item->get('etalon-height');
$dst_x = $media_item->get('left') + $media_item->get('space-left');
$dst_y = $media_item->get('top') + $media_item->get('space-top');
$dst_w = $media_item->get('scale-width');
$dst_h = $media_item->get('scale-height');
if ($media_item->get('bgcolor') !== false) {
list($color_r, $color_g, $color_b) = qpimg_utils::color2rgb($media_item->get('bgcolor'));
imagefilledrectangle($sprite_img, $media_item->get('left'), $media_item->get('top'), $media_item->get('left') + $media_item->get('full-width') - 1, $media_item->get('top') + $media_item->get('full-height') - 1, imagecolorallocate($sprite_img, $color_r, $color_g, $color_b));
unset($color_r, $color_g, $color_b);
}
if ($src_w == $dst_w && $src_h == $dst_h) {
imagecopy($sprite_img, $tmp_img, $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h);
} else {
if ($media_item->get('scale-method') == 'resize') {
imagecopyresized($sprite_img, $tmp_img, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h);
} elseif ($media_item->get('scale-method') == 'resample') {
imagecopyresampled($sprite_img, $tmp_img, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h);
} elseif ($media_item->get('scale-method') == 'mosaic') {
$mosaic_y = $dst_y;
$mosaic_h = $dst_h;
do {
$mosaic_x = $dst_x;
$mosaic_w = $dst_w;
do {
imagecopy($sprite_img, $tmp_img, $mosaic_x, $mosaic_y, 0, 0, min($mosaic_w, $src_w), min($mosaic_h, $src_h));
$mosaic_x += $src_w;
$mosaic_w -= $src_w;
} while ($mosaic_w > 0);
$mosaic_y += $src_h;
$mosaic_h -= $src_h;
} while ($mosaic_h > 0);
unset($mosaic_x, $mosaic_y, $mosaic_w, $mosaic_h);
} else {
qpimg_logger::write("QPIMG_WARNING: Undefined scale-method: " . $media_item->get('scale-method'), __FILE__, __LINE__);
continue;
}
}
unset($src_x, $src_y, $src_w, $src_h);
unset($dst_x, $dst_y, $dst_w, $dst_h);
imagedestroy($tmp_img);
}
//---------------------------------------------------------------------
// Save image-data
switch ($map_cfg['save_format']) {
case 'png':
if (isset($map_cfg['save_quality']) === false) {
$map_cfg['save_quality'] = 9;
}
$save_result = @imagepng($sprite_img, $sprite_filename, min(max($map_cfg['save_quality'], 0), 9));
break;
case 'gif':
$save_result = @imagegif($sprite_img, $sprite_filename);
break;
case 'jpg':
if (isset($map_cfg['save_quality']) === false) {
$map_cfg['save_quality'] = 95;
}
$save_result = @imagejpeg($sprite_img, $sprite_filename, min(max($map_cfg['save_quality'], 0), 100));
break;
}
if ($save_result === false) {
qpimg_logger::write("QPIMG_ERROR: Failed on save result sprite '{$sprite_filename}'", __FILE__, __LINE__);
}
imagedestroy($sprite_img);
}
}
//---------------------------------------------------------------------
// Save crc-hash [if set verbose_check mode]
if ($map_cfg['verbose_check'] === true) {
@file_put_contents(qpimg_cache::gen_filename($map_cfg, 'crc'), $map_cfg['hash'] . ':' . qpimg_cache::get_media_hash($map_cfg));
}
self::drop_temporary_media();
return true;
}