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Some helper functions for themes and images 

git-svn-id: http://svn.automattic.com/wordpress/trunk@4401 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
matt 2006-10-16 06:06:18 +00:00
parent 61aa085018
commit fb64ee90ef
2 changed files with 77 additions and 2 deletions
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47
wp-admin/admin-functions.php
View File

@ -2073,4 +2073,51 @@ function update_home_siteurl($old_value, $value) {
add_action('update_option_home', 'update_home_siteurl', 10, 2);
add_action('update_option_siteurl', 'update_home_siteurl', 10, 2);
function wp_crop_image($src_file, $src_x, $src_y, $src_w, $src_h, $dst_w, $dst_h, $src_abs = false, $dst_file = false) {
if ( ctype_digit($src_file) ) // Handle int as attachment ID
$src_file = get_attached_file($src_file);
$src = wp_load_image($src_file);
if ( !is_resource($src) )
return $src;
$dst = imagecreatetruecolor($dst_w, $dst_h);
if ( $src_abs ) {
$src_w -= $src_x;
$src_h -= $src_y;
}
imageantialias($dst, true);
imagecopyresampled($dst, $src, 0, 0, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h);
if ( !$dst_file )
$dst_file = str_replace(basename($src_file), 'cropped-'.basename($src_file), $src_file);
$dst_file = preg_replace('/\\.[^\\.]+$/', '.jpg', $dst_file);
if ( imagejpeg($dst, $dst_file) )
return $dst_file;
else
return false;
}
function wp_load_image($file) {
if ( ctype_digit($file) )
$file = get_attached_file($file);
if ( !file_exists($file) )
return "File '$file' doesn't exist?";
$contents = file_get_contents($file);
$image = imagecreatefromstring($contents);
if ( !is_resource($image) )
return "File '$file' is not image?";
return $image;
}
?>

28
wp-includes/theme.php
View File

@ -427,4 +427,32 @@ function validate_current_theme() {
return true;
}
function get_theme_mod($name, $default = false) {
$theme = get_current_theme();
$mods = get_option("mods_$theme");
if ( isset($mods[$name]) )
return $mods[$name];
return sprintf($default, get_template_directory_uri());
}
function set_theme_mod($name, $value) {
$theme = get_current_theme();
$mods = get_option("mods_$theme");
$mods[$name] = $value;
update_option("mods_$theme", $mods);
wp_cache_delete("mods_$theme", 'options');
}
function remove_theme_mods() {
$theme = get_current_theme();
delete_option("mods_$theme");
}
?>