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<?php
define('PREG_CLASS_PUNCTUATION', '\\x{21}-\\x{23}\\x{25}-\\x{2a}\\x{2c}-\\x{2f}\\x{3a}\\x{3b}\\x{3f}\\x{40}\\x{5b}-\\x{5d}' . '\\x{5f}\\x{7b}\\x{7d}\\x{a1}\\x{ab}\\x{b7}\\x{bb}\\x{bf}\\x{37e}\\x{387}\\x{55a}-\\x{55f}' . '\\x{589}\\x{58a}\\x{5be}\\x{5c0}\\x{5c3}\\x{5f3}\\x{5f4}\\x{60c}\\x{60d}\\x{61b}\\x{61f}' . '\\x{66a}-\\x{66d}\\x{6d4}\\x{700}-\\x{70d}\\x{964}\\x{965}\\x{970}\\x{df4}\\x{e4f}' . '\\x{e5a}\\x{e5b}\\x{f04}-\\x{f12}\\x{f3a}-\\x{f3d}\\x{f85}\\x{104a}-\\x{104f}\\x{10fb}' . '\\x{1361}-\\x{1368}\\x{166d}\\x{166e}\\x{169b}\\x{169c}\\x{16eb}-\\x{16ed}\\x{1735}' . '\\x{1736}\\x{17d4}-\\x{17d6}\\x{17d8}-\\x{17da}\\x{1800}-\\x{180a}\\x{1944}\\x{1945}' . '\\x{2010}-\\x{2027}\\x{2030}-\\x{2043}\\x{2045}-\\x{2051}\\x{2053}\\x{2054}\\x{2057}' . '\\x{207d}\\x{207e}\\x{208d}\\x{208e}\\x{2329}\\x{232a}\\x{23b4}-\\x{23b6}\\x{2768}-' . '\\x{2775}\\x{27e6}-\\x{27eb}\\x{2983}-\\x{2998}\\x{29d8}-\\x{29db}\\x{29fc}\\x{29fd}' . '\\x{3001}-\\x{3003}\\x{3008}-\\x{3011}\\x{3014}-\\x{301f}\\x{3030}\\x{303d}\\x{30a0}' . '\\x{30fb}\\x{fd3e}\\x{fd3f}\\x{fe30}-\\x{fe52}\\x{fe54}-\\x{fe61}\\x{fe63}\\x{fe68}' . '\\x{fe6a}\\x{fe6b}\\x{ff01}-\\x{ff03}\\x{ff05}-\\x{ff0a}\\x{ff0c}-\\x{ff0f}\\x{ff1a}' . '\\x{ff1b}\\x{ff1f}\\x{ff20}\\x{ff3b}-\\x{ff3d}\\x{ff3f}\\x{ff5b}\\x{ff5d}\\x{ff5f}-' . '\\x{ff65}');
define('PREG_CLASS_SEPARATOR', '\\x{20}\\x{a0}\\x{1680}\\x{180e}\\x{2000}-\\x{200a}\\x{2028}\\x{2029}\\x{202f}\\x{205f}\\x{3000}');
define('ALIGN_LEFT', 1);
define('ALIGN_CENTER', 2);
define('ALIGN_RIGHT', 3);
function textimage_help($section) {
$output = "";
switch ($section) {
case 'admin/help#textimage':
$output .= '<h2 id="textimage-introduction">The dynamic text to image generator!</h2>';
$output .= '<p>Text image is a module which allows you to create dynamic images using any font installed on the server.</p>';
$output .= '<p>Creating images from text has several important advantages and disadvantages. The greatest advantage is it allows you to use any font you wish for headlines and titles without the user needing to install the font. Another advantage is the wide browser support for images and available accessibility features (alt and title tags for instance), so screen readers should be able to handle your images without problem. You might also prefer text images over the <a href="http://www.mikeindustries.com/sifr/">sIFR approach</a> because generated images are not disabled by many ad-blocking tools. However, an important limitation of Text Image module is wrapping of text, which it does not currently support and cannot compete with the dynamic abilities of a Flash based solution. If you need to create images with wrapped text, sIFR may be a better solution.</p>';
$output .= '<h2>Installing Fonts</h2>';
$output .= '<p>Text image is dependent on the GD2 library for text manipulations. You can check what version of GD you have on the <a href="!config">Text Image configuration page</a>. Before you can begin using Text Image you must upload at least one TrueType font to the server and tell Text Image where you uploaded it. All fonts must have the .tff extension to be seen by Text Image. If you do not have any TTF fonts to start using Text Image, you can download some free GNU fonts from the <a href="http://savannah.nongnu.org/projects/freefont/">Free UCS Outline Fonts Project</a>. Once the fonts are uploaded, enter the UNIX-style path the fonts on the <a href="!config">configuration page</a>. If you are using Text Image with the Captcha module, you\'ll also need to set a seperate directory on the <a href="!captcha">Text Image Captcha Settings</a> for fonts to be used at random.</p>';
$output .= '<h2 id="textimage-configuration">Configuration</h2>';
$output .= '<p>The basis of Text Image is made of configuration options called <em>presets</em>. A preset defines what font, size, color, etc. should be used in the generated image. You can create a new preset by clicking on the tab by the same name from the <a href="!config">configuration page</a>. Most options are pretty self explanatory, but background images can get pretty complicated if you begin to use other presets as backgrounds. Let\'s run through an example.';
$output .= '<p>If you specified a backgrounds directory on the main configuration page, a list of backgrounds is automatically popuplated into the Background Image select list. Let\'s say there\'s a image called "header.png" in the image list that looks like this:<p>';
$output .= '<p><img src="!example1" alt="example1" /></p>';
$output .= '<p>Now we\'ll create a preset called "preset1". In this preset, set the font to braggadacio.ttf (not included), 54px, #FFFFFF (white) color. Select header.png from the background list and position the text at x-offset 14 and y-offset 22 (in pixels). After the preset is saved, Text Image is now ready to automatically generate images based on text strings. You could directly visit the image at {files}/textimage/preset1/Hello.png (where {files} is your sites file directory) and get the following result:</p>';
$output .= '<p><img src="!example2" alt="example2" /></p>';
$output .= '<p>To get crazy now, create a new preset called "preset2". In this preset, set the font to century.ttf (also not included), 20px, #000000 (black) color. Select <em>preset1</em> from the background list and position the text at x-offset 14 and y-offset 94. Save the preset then visit {files}/textimage/preset2/Hello/world!.png and get the following result:</p>';
$output .= '<p><img src="!example3" alt="example3" /></p>';
$output .= '<p>The entire preset1 is generated using the first argument <em>Hello</em>. Then preset2 is generated using the name of the file <em>world!.png</em>. You could continue chaining presets together over and over again, but be sure not to create a loop.</p>';
$output .= '<h2>File Names and Storage</h2>';
$output .= '<p>Text Image supports .png, .gif, and .jpg input and output files. You can change the output format of the image simply by changing the extension of the last file. In the above example we made PNG images. If we had appended it with .jpg, a JPG image would have been created. Only PNG and GIF files support transparent backgrounds.</p>';
$output .= '<p>When directly calling URLs for text images, underscores (_) may be used in the place of spaces.</p>';
$output = t($output, array(
'!config' => url('admin/settings/textimage'),
'!captcha' => url('admin/settings/textimage/captcha'),
'!example1' => base_path() . drupal_get_path('module', 'textimage') . '/misc/example1.png',
'!example2' => base_path() . drupal_get_path('module', 'textimage') . '/misc/example2.png',
'!example3' => base_path() . drupal_get_path('module', 'textimage') . '/misc/example3.png',
));
break;
case 'admin/build/modules#description':
case 'admin/build/modules/textimage':
case 'admin/settings/textimage':
$output = t('Provides text to image manipulations and image based captcha challenge (with Captcha module).');
break;
}
return $output;
}
function textimage_menu($may_cache) {
$items = array();
if ($may_cache) {
$items[] = array(
'path' => file_directory_path() . '/textimage',
'callback' => 'textimage_image',
'access' => true,
'type' => MENU_CALLBACK,
);
$items[] = array(
'path' => 'admin/settings/textimage',
'title' => t('Text Image'),
'description' => t('Configure text to image preset functions.') . (module_exists('captcha') ? ' ' . t('Set the options for image based captchas.') : ''),
'callback' => 'drupal_get_form',
'callback arguments' => array(
'textimage_settings_form',
),
'access' => user_access('administer site configuration'),
'type' => MENU_NORMAL_ITEM,
);
$items[] = array(
'path' => 'admin/settings/textimage/settings',
'title' => t('Settings'),
'callback' => 'drupal_get_form',
'callback arguments' => array(
'textimage_settings_form',
),
'access' => user_access('administer site configuration'),
'weight' => 0,
'type' => MENU_DEFAULT_LOCAL_TASK,
);
$items[] = array(
'path' => 'admin/settings/textimage/list',
'title' => t('List presets'),
'callback' => 'textimage_preset_list',
'access' => user_access('administer site configuration'),
'weight' => 1,
'type' => MENU_LOCAL_TASK,
);
$items[] = array(
'path' => 'admin/settings/textimage/new',
'title' => t('New preset'),
'callback' => 'drupal_get_form',
'callback arguments' => array(
'textimage_preset_edit',
'new',
),
'access' => user_access('administer site configuration'),
'weight' => 2,
'type' => MENU_LOCAL_TASK,
);
$items[] = array(
'path' => 'admin/settings/textimage/preset',
'title' => t('Edit Preset'),
'callback' => 'drupal_get_form',
'callback arguments' => array(
'textimage_preset_edit',
),
'access' => user_access('administer site configuration'),
'type' => MENU_CALLBACK,
);
if (module_exists('captcha')) {
$items[] = array(
'path' => 'admin/settings/textimage/captcha',
'title' => t('Captcha display'),
'callback' => 'drupal_get_form',
'callback arguments' => array(
'textimage_captcha_settings_form',
),
'access' => user_access('administer site configuration'),
'weight' => 5,
'type' => MENU_LOCAL_TASK,
);
}
}
else {
$suffix = arg(2) != null ? '/' . arg(2) : '';
$items[] = array(
'path' => '_textimage/image' . $suffix,
'title' => t('textimage'),
'callback' => '_textimage_captcha_image',
'access' => user_access('access textimages'),
'type' => MENU_CALLBACK,
);
$items[] = array(
'path' => 'admin/settings/textimage/preset/' . arg(4) . '/delete',
'title' => t('Edit Preset'),
'callback' => 'drupal_get_form',
'callback arguments' => array(
'textimage_preset_delete_confirm',
arg(4),
),
'access' => user_access('administer site configuration'),
'type' => MENU_CALLBACK,
);
$items[] = array(
'path' => 'admin/settings/textimage/preset/' . arg(4) . '/flush',
'title' => t('Flush Preset Cache'),
'callback' => 'drupal_get_form',
'callback arguments' => array(
'textimage_preset_flush_confirm',
arg(4),
),
'access' => user_access('administer site configuration'),
'type' => MENU_CALLBACK,
);
}
return $items;
}
function textimage_perm() {
return array(
'access textimages',
);
}
function textimage_settings_form() {
$form = array();
$fonts_path = variable_get("textimage_fonts_path", "");
$images_path = variable_get("textimage_images_path", "");
if (!function_exists(imagecreate)) {
drupal_set_message(t('Image library not available. Textimage needs the GD library extension to be installed. Please install GD.'), 'error');
}
if (!function_exists(imagettftext)) {
drupal_set_message(t('Your image library does not seem to have TrueType font support. Textimage will work, but will use the default inbuilt font.'), 'error');
}
if (!variable_get('clean_url', false)) {
drupal_set_message(t('Textimage requires <a href="!path">clean URLs</a> be enabled. Without clean URL support Textimage is unable to cache images and can cause serious performance problems.', array(
'!path' => url('admin/settings/clean-urls'),
)), 'error');
}
if ($fonts_path != '' && !is_dir(rtrim($fonts_path, '\\/'))) {
drupal_set_message(t('The current font path is invalid. The default font will be used.'), 'error');
}
if ($images_path != '' && !is_dir(rtrim($images_path, '\\/'))) {
drupal_set_message(t('The current images path is invalid. No images will be used.'), 'error');
}
if (isset($fonts_path)) {
$imagefontinfo .= t('Number of fonts found: ') . count(_textimage_font_list($fonts_path));
}
if (isset($images_path)) {
$imagefontinfo .= '<br />' . t('Number of background images found: ') . count(_textimage_image_list($images_path));
}
$gdinfo = gd_info();
$imagefontinfo .= '<br />' . t('GD Version: ') . $gdinfo["GD Version"];
$imagefontinfo .= '<br />' . t(' FreeType Support: ');
$imagefontinfo .= $gdinfo["FreeType Support"] == true ? t('True') : t('False');
$imagefontinfo .= '<br />';
if (!$gdinfo["FreeType Support"]) {
drupal_set_message(t("This server's installation of GD does not have FreeType support. Textimage requires FreeType support for proper functionality."), 'error');
}
$form['info'] = array(
'#type' => 'fieldset',
'#title' => t('Image and font information'),
'#collapsible' => TRUE,
'#collapsed' => FALSE,
);
$form['info']['textimage_info'] = array(
'#type' => 'item',
'#value' => $imagefontinfo,
);
$form['settings'] = array(
'#type' => 'fieldset',
'#title' => t('Text image settings'),
'#collapsible' => TRUE,
'#collapsed' => FALSE,
);
$form['settings']['textimage_fonts_path'] = array(
'#type' => 'textfield',
'#title' => t('TrueType Fonts Path'),
'#default_value' => $fonts_path,
'#size' => 30,
'#maxlength' => 255,
'#description' => t('Location of the directory where the Truetype (.ttf) fonts are stored. If you do not provide any fonts, the module will use the default font for text. Relative paths will be resolved relative to the Drupal installation directory.'),
);
$form['settings']['textimage_images_path'] = array(
'#type' => 'textfield',
'#title' => t('Background Image Path'),
'#default_value' => $images_path,
'#size' => 30,
'#maxlength' => 255,
'#description' => t('Location of the directory where the background images are stored. Images in this directory can be overlaid with dynamic text in a preset. Relative paths will be resolved relative to the Drupal installation directory.'),
);
return system_settings_form($form);
}
function textimage_settings_form_validate($form_id, $form_values) {
if ($form_values['textimage_fonts_path'] != "" && !is_dir(rtrim($form_values['textimage_fonts_path'], '\\/'))) {
form_set_error('textimage_fonts_path', t('The entered font path is invalid'));
}
if ($form_values['textimage_images_path'] != "" && !is_dir(rtrim($form_values['textimage_images_path'], '\\/'))) {
form_set_error('textimage_images_path', t('The entered image path is invalid'));
}
}
function textimage_settings_page() {
$output = 'hello';
return $output;
}
function textimage_preset_edit($preset_id) {
if (is_numeric($preset_id)) {
$preset = _textimage_preset_load($preset_id);
}
else {
$preset = array();
}
$fonts_path = variable_get('textimage_fonts_path', '');
$font_options = drupal_map_assoc(_textimage_font_list($fonts_path));
$images_path = variable_get('textimage_images_path', '');
$image_files = drupal_map_assoc(_textimage_image_list($images_path));
$image_presets = array();
$presets = textimage_get_presets();
foreach ($presets as $p) {
if ($p['pid'] != $preset_id) {
$image_presets[$p['pid']] = $p['name'];
}
}
$image_options = array(
t('Default:') => array(
'' => t('Default (use background color)'),
),
t('Use the result of Text Image Preset:') => $image_presets,
t('Use a Background Image:') => $image_files,
);
$form = array();
$form['#tree'] = TRUE;
$form['preset_id'] = array(
'#type' => 'value',
'#value' => $preset_id,
);
$form['name'] = array(
'#type' => 'textfield',
'#title' => t('Preset Name'),
'#description' => t('Preset names should be short and only use alphanumeric characters. This name will be used in the image path for all generated images.'),
'#default_value' => $preset['name'],
'#required' => TRUE,
);
$form['settings']['description'] = array(
'#type' => 'textarea',
'#title' => t('Description'),
'#description' => t('A short description displayed in the list of presets.'),
'#default_value' => $preset['settings']['description'],
'#rows' => 1,
);
$form['settings']['text'] = array(
'#type' => 'fieldset',
'#title' => t('Text Settings'),
'#collapsible' => TRUE,
'#collapsed' => FALSE,
);
$form['settings']['text']['font'] = array(
'#type' => 'select',
'#title' => t('Font'),
'#options' => $font_options,
'#default_value' => $preset['settings']['text']['font'],
'#description' => t('Select the font to be used in this image. If no fonts are listed, check the <a href="!path">settings for TrueType Fonts Path</a>.', array(
'!path' => url('admin/settings/textimage'),
)),
'#required' => TRUE,
);
$form['settings']['text']['size'] = array(
'#type' => 'textfield',
'#title' => t('Font Size'),
'#description' => t('Enter the size in pixels of the text to be generated.'),
'#default_value' => $preset['settings']['text']['size'] ? $preset['settings']['text']['size'] : 16,
'#maxlength' => 4,
'#size' => 4,
'#required' => TRUE,
'#validate' => array(
'_textimage_number_validate' => array(
'size',
),
),
);
$form['settings']['text']['color'] = array(
'#type' => 'textfield',
'#title' => t('Text Color'),
'#description' => t('Enter the hex color code you wish to use for the generated text (i.e. #000000).'),
'#default_value' => $preset['settings']['text']['color'],
'#maxlength' => 7,
'#size' => 7,
'#validate' => array(
'_textimage_hex_validate' => array(
'color',
),
),
'#required' => TRUE,
);
$form['settings']['text']['maximum_width'] = array(
'#type' => 'textfield',
'#title' => t('Maximum width'),
'#field_suffix' => t('pixels'),
'#description' => t('Text lines wider than this will be wrapped. Leave blank to disable wrapping.'),
'#default_value' => $preset['settings']['text']['maximum_width'],
'#maxlength' => 4,
'#size' => 4,
);
$form['settings']['text']['fixed_width'] = array(
'#type' => 'checkbox',
'#title' => t('Fixed width?'),
'#description' => t('If checked the size of generated image will always be equal to the max width.'),
'#default_value' => $preset['settings']['text']['fixed_width'],
);
$form['settings']['text']['align'] = array(
'#type' => 'select',
'#title' => t('Text Align'),
'#description' => t('Only works when fixed width is enabled.'),
'#options' => array(
ALIGN_LEFT => t('Left'),
ALIGN_CENTER => t('Center'),
ALIGN_RIGHT => t('Right'),
),
'#default_value' => $preset['settings']['text']['align'],
);
$form['settings']['text']['angle'] = array(
'#type' => 'textfield',
'#title' => t('Text Rotation'),
'#description' => t('Enter the angle in degrees at which the text will be displayed. Positive numbers rotate the text clockwise, negative numbers counter-clockwise.'),
'#default_value' => $preset['settings']['text']['angle'] ? $preset['settings']['text']['angle'] : 0,
'#maxlength' => 4,
'#size' => 4,
'#validate' => array(
'_textimage_number_validate' => array(
'angle',
),
),
);
$form['settings']['text']['case'] = array(
'#type' => 'radios',
'#title' => t('Convert to case'),
'#options' => array(
'' => t('Default'),
'upper' => t('UPPERCASE'),
'lower' => t('lowercase'),
'ucwords' => t('Uppercase Words'),
'ucfirst' => t('Uppercase first'),
),
'#description' => t('Covert the input text to a consistent format. The default makes no changes to input text.'),
'#default_value' => $preset['settings']['text']['case'],
);
$form['settings']['text']['stroke_width'] = array(
'#type' => 'textfield',
'#title' => t('Outline Width'),
'#description' => t('Optionally add a stroke outline around the text. Enter the stroke width in pixels.'),
'#default_value' => $preset['settings']['text']['stroke_width'],
'#maxlength' => 1,
'#size' => 4,
'#validate' => array(
'_textimage_number_validate' => array(
'stroke_width',
),
),
);
$form['settings']['text']['stroke_color'] = array(
'#type' => 'textfield',
'#title' => t('Outline Color'),
'#description' => t('Enter the hex color code you wish to use for the stroke outline (i.e. #000000).'),
'#default_value' => $preset['settings']['text']['stroke_color'],
'#maxlength' => 7,
'#size' => 7,
'#validate' => array(
'_textimage_hex_validate' => array(
'color',
),
),
);
$form['settings']['text']['margin_top'] = array(
'#type' => 'textfield',
'#title' => t('Text Margin Top'),
'#default_value' => $preset['settings']['text']['margin_top'] ? $preset['settings']['text']['margin_top'] : 0,
'#maxlength' => 4,
'#size' => 4,
'#validate' => array(
'_textimage_number_validate' => array(
'margin_top',
),
),
);
$form['settings']['text']['margin_right'] = array(
'#type' => 'textfield',
'#title' => t('Text Margin Right'),
'#default_value' => $preset['settings']['text']['margin_right'] ? $preset['settings']['text']['margin_right'] : 0,
'#maxlength' => 4,
'#size' => 4,
'#validate' => array(
'_textimage_number_validate' => array(
'margin_top',
),
),
);
$form['settings']['text']['margin_bottom'] = array(
'#type' => 'textfield',
'#title' => t('Text Margin Bottom'),
'#default_value' => $preset['settings']['text']['margin_bottom'] ? $preset['settings']['text']['margin_bottom'] : 0,
'#maxlength' => 4,
'#size' => 4,
'#validate' => array(
'_textimage_number_validate' => array(
'margin_bottom',
),
),
);
$form['settings']['text']['margin_left'] = array(
'#type' => 'textfield',
'#title' => t('Text Margin Left'),
'#description' => t('Specify the margin in pixels to be added around the generated text.'),
'#default_value' => $preset['settings']['text']['margin_left'] ? $preset['settings']['text']['margin_left'] : 0,
'#maxlength' => 4,
'#size' => 4,
'#validate' => array(
'_textimage_number_validate' => array(
'margin_left',
),
),
);
$form['settings']['background'] = array(
'#type' => 'fieldset',
'#title' => t('Background'),
'#collapsible' => TRUE,
'#collapsed' => FALSE,
);
$form['settings']['background']['color'] = array(
'#type' => 'textfield',
'#title' => t('Background Color'),
'#description' => t('Enter the hex color code you wish to use for the background of the generated image (i.e. #FFFFFF). Leave blank for transparent.'),
'#default_value' => $preset['settings']['background']['color'],
'#maxlength' => 7,
'#size' => 7,
'#validate' => array(
'_textimage_hex_validate' => array(
'color',
),
),
);
$form['settings']['background']['image'] = array(
'#type' => 'select',
'#title' => t('Background Image'),
'#options' => $image_options,
'#default_value' => $preset['settings']['background']['image'],
'#description' => t('Select the font to be used in this image. If no fonts are listed, check the <a href="!path">settings for TrueType Fonts Path</a>.', array(
'!path' => url('admin/settings/textimage'),
)),
);
$form['settings']['background']['xoffset'] = array(
'#type' => 'textfield',
'#title' => t('Text X-Offset'),
'#default_value' => $preset['settings']['background']['xoffset'] ? $preset['settings']['background']['xoffset'] : 0,
'#maxlength' => 4,
'#size' => 4,
'#validate' => array(
'_textimage_number_validate' => array(
'xoffset',
),
),
);
$form['settings']['background']['yoffset'] = array(
'#type' => 'textfield',
'#title' => t('Text Y-Offset'),
'#description' => t('Specify the x and y coordinates on the image you where the top-left corner of the dynamic text should be positioned.'),
'#default_value' => $preset['settings']['background']['yoffset'] ? $preset['settings']['background']['yoffset'] : 0,
'#maxlength' => 4,
'#size' => 4,
'#validate' => array(
'_textimage_number_validate' => array(
'yoffset',
),
),
);
$form['submit'] = array(
'#type' => 'submit',
'#value' => t('Submit'),
);
return $form;
}
function textimage_preset_edit_validate($form_id, $form_values) {
if (preg_match('/[^0-9a-zA-Z_\\-]/', $form_values['name'])) {
form_set_error('name', t('Please only use alphanumic characters, underscores (_), and hyphens (-) for preset names.'));
}
if ($form_values['preset_id'] == 'new') {
$preset = _textimage_preset_load_by_name($form_values['name']);
if ($preset['name']) {
form_set_error('name', t('The name %name is already in use by another preset.', array(
'%name' => $form_values['name'],
)));
}
}
}
function textimage_preset_edit_submit($form_id, $form_values) {
if ($form_values['preset_id'] == 'new') {
$return = _textimage_preset_create($form_values['name'], $form_values['settings']);
}
elseif (is_numeric($form_values['preset_id'])) {
$return = _textimage_preset_update($form_values['preset_id'], $form_values['name'], $form_values['settings']);
}
if ($return) {
drupal_set_message(t('Updated preset %name', array(
'%name' => $form_values['name'],
)));
drupal_goto('admin/settings/textimage/list');
}
else {
drupal_set_message(t('The preset was unable to be updated.', 'error'));
}
}
function textimage_preset_list() {
$presets = textimage_get_presets();
$header = array(
t('Name'),
t('Summary'),
t('Description'),
array(
'data' => t('Operations'),
'colspan' => '2',
),
);
$rows = array();
foreach ($presets as $name => $preset) {
$row = array();
$row[] = $name;
$row[] = $preset['settings']['text']['font'] . ' ' . $preset['settings']['text']['size'] . t('px');
$row[] = $preset['settings']['description'];
$row[] = l(t('edit'), 'admin/settings/textimage/preset/' . $preset['pid']);
$row[] = l(t('delete'), 'admin/settings/textimage/preset/' . $preset['pid'] . '/delete');
$row[] = l(t('flush cache'), 'admin/settings/textimage/preset/' . $preset['pid'] . '/flush');
$rows[] = $row;
}
if (empty($rows)) {
$rows[] = array(
array(
'data' => t('No presets defined. <a href="!url">Create a new preset</a>.', array(
'!url' => url('admin/settings/textimage/new'),
)),
'colspan' => '5',
'class' => 'message',
),
);
}
return theme('table', $header, $rows);
}
function textimage_preset_delete_confirm($preset_id) {
$preset = _textimage_preset_load($preset_id);
$form['pid'] = array(
'#type' => 'value',
'#value' => $preset_id,
);
$form['name'] = array(
'#type' => 'value',
'#value' => $preset['name'],
);
return confirm_form($form, t('Are you sure you want to delete the preset %name?', array(
'%name' => $preset['name'],
)), $_GET['destination'] ? $_GET['destination'] : 'admin/settings/textimage/list', t('This action cannot be undone.'), t('Delete'), t('Cancel'));
}
function textimage_preset_delete_confirm_submit($form_id, $form_values) {
_textimage_preset_delete($form_values['pid']);
drupal_set_message(t('Deleted preset %name', array(
'%name' => $form_values['name'],
)));
drupal_goto('admin/settings/textimage/list');
}
function textimage_preset_flush_confirm($preset_id) {
$preset = _textimage_preset_load($preset_id);
$form['pid'] = array(
'#type' => 'value',
'#value' => $preset_id,
);
$form['name'] = array(
'#type' => 'value',
'#value' => $preset['name'],
);
return confirm_form($form, t('Are you sure you want to flush the image cache for preset %name?', array(
'%name' => $preset['name'],
)), $_GET['destination'] ? $_GET['destination'] : 'admin/settings/textimage/list', t('This action cannot be undone.'), t('Flush Cache'), t('Cancel'));
}
function textimage_preset_flush_confirm_submit($form_id, $form_values) {
_textimage_preset_flush($form_values['pid']);
drupal_goto('admin/settings/textimage/list');
}
function textimage_get_presets() {
$result = db_query('SELECT pid, name, settings FROM {textimage_preset}');
$presets = array();
while ($preset = db_fetch_array($result)) {
$preset['settings'] = unserialize($preset['settings']);
$presets[$preset['name']] = $preset;
}
return $presets;
}
function textimage_image() {
$args = func_get_args();
$preset_name = array_shift($args);
$filename = array_pop($args);
$additional_text = $args;
preg_match('/\\.([a-z]+)$/i', $filename, $matches);
$format = $matches[1];
if ($format == 'jpg') {
$format = 'jpeg';
}
$text = preg_replace('/\\.([a-z]+)$/i', '', $filename);
$output_function = 'image' . $format;
if (!function_exists($output_function)) {
$message = t('Unable to generate Text Image %text because the file extension is unsupported on this system. Files must have a .png, .jpg, or .gif extension.', array(
'%text' => $filename,
));
watchdog('textimage', $message, WATCHDOG_ERROR);
return $message;
}
$preset = _textimage_preset_load_by_name($preset_name);
if (!$preset) {
$message = t('Unable to generate Text Image %text because the preset %preset is not defined.', array(
'%text' => $filename,
'%preset' => $preset_name,
));
watchdog('textimage', $message, WATCHDOG_ERROR);
return $message;
}
$img = textimage_image_from_preset($preset['pid'], $text, $additional_text);
header('Content-type: image/' . $format);
$output_function($img);
textimage_directory_check(str_replace('/' . $filename, '', $_GET['q']));
$output_function($img, $_GET['q']);
imagedestroy($img);
exit;
}
function textimage_image_from_preset($preset_id, $text, $additional_text) {
$preset = _textimage_preset_load($preset_id);
$text = str_replace('_', ' ', $text);
$font = variable_get('textimage_fonts_path', '') . '/' . $preset['settings']['text']['font'];
$defaults = array(
'text' => array(
'size' => '',
'angle' => 0,
'color' => '',
'case' => '',
'stroke_width' => '',
'stroke_color' => '#000000',
'maximum_width' => 0,
'margin_top' => 0,
'margin_right' => 0,
'margin_bottom' => 0,
'margin_left' => 0,
'fixed_width' => 0,
'align' => ALIGN_LEFT,
),
'background' => array(
'back_color' => '',
'back_image' => '',
'back_xoffset' => 0,
'back_yoffset' => 0,
),
);
foreach ($defaults as $set => $values) {
$settings = $preset['settings'][$set];
foreach ($values as $key => $value) {
$array_key = preg_replace('/^back_/', '', $key);
${$key} = $settings[$array_key] ? $settings[$array_key] : $value;
}
}
switch ($case) {
case 'upper':
$text = drupal_strtoupper($text);
break;
case 'lower':
$text = drupal_strtolower($text);
break;
case 'ucfirst':
$text = drupal_ucfirst($text);
break;
case 'ucwords':
$text = drupal_strtolower($text);
$words = explode(' ', $text);
foreach ($words as $key => $word) {
$words[$key] = drupal_ucfirst($word);
}
$text = implode(' ', $words);
break;
}
if (function_exists('drupal_' . $case)) {
$text = drupal_strtoupper($text);
}
$img = textimage_text_to_image($text, $size, $font, $color, $back_color, $angle, $maximum_width, $fixed_width, $align);
if ($margin_top || $margin_right || $margin_bottom || $margin_left) {
$img = textimage_image_add_margin($img, $margin_top, $margin_right, $margin_bottom, $margin_left, $back_color);
}
if ($stroke_width && $stroke_color) {
$img = textimage_image_add_stroke($img, $stroke_width, $stroke_color);
}
if (is_numeric($back_image) && _textimage_preset_load($back_image)) {
$next_preset = $back_image;
$next_text = array_pop($additional_text);
$background_resource = textimage_image_from_preset($next_preset, $next_text, $additional_text);
$text_width = imagesx($img);
$text_height = imagesy($img);
imagealphablending($background_resource, true);
imagecopy($background_resource, $img, $back_xoffset, $back_yoffset, 0, 0, $text_width, $text_height);
$img = $background_resource;
}
elseif (is_file($back_image)) {
$info = image_get_info($back_image);
$background_resource = image_gd_open($back_image, $info['extension']);
$text_width = imagesx($img);
$text_height = imagesy($img);
imagecopy($background_resource, $img, $back_xoffset, $back_yoffset, 0, 0, $text_width, $text_height);
$img = $background_resource;
}
return $img;
}
function textimage_image_add_margin($img, $top, $right, $bottom, $left, $background_color = NULL) {
$iw = imagesx($img);
$ih = imagesy($img);
if (empty($background_color)) {
$back_img = _textimage_create_transparent_image($iw + $right + $left, $ih + $top + $bottom);
}
else {
$back_img = imagecreatetruecolor($iw + $right + $left, $ih + $top + $bottom);
list($r, $g, $b) = _textimage_hex2rgb($background_color);
$back = imagecolorallocate($back_img, $r, $g, $b);
imagefill($back_img, 0, 0, $back);
}
imagecopy($back_img, $img, $left, $top, 0, 0, $iw, $ih);
return $back_img;
}
function textimage_image_add_stroke($img, $thickness, $color) {
if ($thickness > 0) {
$width = imagesx($img);
$height = imagesy($img);
$border_img = _textimage_create_transparent_image($width, $height);
for ($x = 0; $x < $width; $x++) {
for ($y = 0; $y < $height; $y++) {
$c = imagecolorsforindex($img, imagecolorat($img, $x, $y));
if ($c['alpha'] > 0) {
textimage_image_stroke_change_pixels($img, $border_img, $thickness, $color, $x, $y, $width, $height);
}
}
}
imagealphablending($img, true);
imagecopy($img, $border_img, 0, 0, 0, 0, $width, $height);
}
return $img;
}
function textimage_image_stroke_change_pixels(&$img, &$border_img, $thickness, $color, $x, $y, $width, $height) {
list($r, $g, $b) = _textimage_hex2rgb($color);
$pixel = imagecolorsforindex($img, imagecolorat($img, $x, $y));
$degree_increment = 90 / $thickness;
$radial_coords = array();
for ($degrees = 0; $degrees <= 90; $degrees += $degree_increment) {
$x_offset = round(cos($degrees) * $thickness);
$y_offset = round(sin($degrees) * $thickness);
$radial_coords[] = array(
'x' => $x + $x_offset,
'y' => $y + $y_offset,
);
$radial_coords[] = array(
'x' => $x - $x_offset,
'y' => $y + $y_offset,
);
$radial_coords[] = array(
'x' => $x + $x_offset,
'y' => $y - $y_offset,
);
$radial_coords[] = array(
'x' => $x - $x_offset,
'y' => $y - $y_offset,
);
}
$total_alpha = 0;
$total_colors = 0;
foreach ($radial_coords as $coords) {
if ($coords['x'] >= 0 && $coords['y'] >= 0 && $coords['x'] < $width && $coords['y'] < $height) {
$xy_color = imagecolorsforindex($img, imagecolorat($img, $coords['x'], $coords['y']));
}
else {
$xy_color = array(
'alpha' => '127',
);
}
$total_alpha += $xy_color['alpha'];
$total_colors++;
}
if ($total_alpha < 127 * $total_colors && $total_alpha > 0) {
if ($pixel['alpha'] < 127) {
$alpha = 127 - $pixel['alpha'];
}
else {
$alpha = 127 - (127 * $total_colors - $total_alpha);
}
$alpha = $alpha < 0 ? 0 : $alpha;
$alpha = $alpha > 127 ? 127 : $alpha;
$color = imagecolorallocatealpha($border_img, $r, $g, $b, $alpha);
imagesetpixel($border_img, $x, $y, $color);
}
}
function textimage_directory_check($directory_path) {
foreach (explode('/', $directory_path) as $dir) {
$dirs[] = $dir;
if (!file_check_directory(implode($dirs, '/'), FILE_CREATE_DIRECTORY)) {
return false;
}
}
return true;
}
function textimage_measure_text_width($text, $fontsize, $font) {
$box = imageTTFBbox($fontsize, $angle, $font, $text);
return abs($box[4] - $box[0]) + 4;
}
function textimage_wrap_text($text, $fontsize, $font, $maximum_width) {
$end = 0;
$begin = 0;
$fit = $begin;
while (true) {
if (preg_match('/[' . PREG_CLASS_PUNCTUATION . '][' . PREG_CLASS_SEPARATOR . ']*|[' . PREG_CLASS_SEPARATOR . ']+/u', $text, $match, PREG_OFFSET_CAPTURE, $end)) {
$end = $match[0][1] + strlen($match[0][0]);
}
else {
$end = strlen($text);
}
$line = preg_replace('/[' . PREG_CLASS_SEPARATOR . ']+$/u', '', substr($text, $begin, $end - $begin));
$width = textimage_measure_text_width($line, $fontsize, $font);
if ($width > $maximum_width) {
if ($fit == $begin) {
while (strlen($line) > 0 && $width > $maximum_width) {
$line = drupal_substr($line, 0, -1);
$width = textimage_measure_text_width($line, $fontsize, $font);
}
$fit = strlen($line) ? $begin + strlen($line) : $end;
}
$text = substr($text, 0, $fit) . "\n" . substr($text, $fit);
$end = $begin = ++$fit;
}
else {
$fit = $end;
}
if ($end == strlen($text)) {
break;
}
}
return $text;
}
function textimage_text_to_image($text, $fontsize, $font, $foreground_color = '#000000', $background_color = NULL, $angle = 0, $maximum_width = 0, $fixed_width = 0, $align = ALIGN_LEFT) {
if ($maximum_width > 0) {
$text = textimage_wrap_text($text, $fontsize, $font, $maximum_width);
}
$box = imageTTFBbox($fontsize, $angle, $font, $text);
$iw = abs($box[4] - $box[0]) + 4;
$ih = abs($box[5] - $box[1]) + 4;
if ($fixed_width) {
$background_width = $maximum_width;
}
else {
$background_width = $iw;
}
if (empty($background_color)) {
$img = _textimage_create_transparent_image($background_width, $ih);
}
else {
$img = imagecreatetruecolor($background_width, $ih);
list($r, $g, $b) = _textimage_hex2rgb($background_color);
$back = imagecolorallocate($img, $r, $g, $b);
imagefill($img, 0, 0, $back);
}
list($r, $g, $b) = _textimage_hex2rgb($foreground_color);
$fore = imagecolorallocate($img, $r, $g, $b);
switch ($align) {
case ALIGN_RIGHT:
$x = $maximum_width - $iw;
break;
case ALIGN_CENTER:
$x = ($maximum_width - $iw) / 2;
break;
case ALIGN_LEFT:
default:
$x = 0;
break;
}
imagettftext($img, $fontsize, $angle, $x, abs($box[5]), $fore, $font, $text);
return $img;
}
function _textimage_preset_load($id) {
$result = db_query('SELECT pid, name, settings FROM {textimage_preset} WHERE pid = %d', $id);
$preset = db_fetch_array($result);
if ($preset['pid']) {
$preset['settings'] = unserialize($preset['settings']);
return $preset;
}
else {
return false;
}
}
function _textimage_preset_load_by_name($name) {
$result = db_query("SELECT pid, name, settings FROM {textimage_preset} WHERE name = '%s'", $name);
if (db_num_rows($result) == 0) {
return false;
}
else {
$preset = db_fetch_array($result);
$preset['settings'] = unserialize($preset['settings']);
return $preset;
}
}
function _textimage_preset_create($name, $settings) {
$next_id = db_next_id('{textimage_preset}_pid');
return db_query('INSERT INTO {textimage_preset} (pid, name, settings) VALUES (%d, \'%s\', \'%s\')', $next_id, $name, serialize($settings));
}
function _textimage_preset_update($id, $name, $settings) {
$name = check_plain($name);
_textimage_preset_flush($id);
return db_query('UPDATE {textimage_preset} SET name =\'%s\', settings =\'%s\' WHERE pid = %d', $name, serialize($settings), $id);
}
function _textimage_preset_delete($id) {
_textimage_preset_flush($id);
return db_query('DELETE FROM {textimage_preset} where pid = %d', $id);
}
function _textimage_preset_flush($id) {
drupal_set_message(t('Flushed Preset Images (ID: @id)', array(
'@id' => $id,
)));
$preset = _textimage_preset_load($id);
$presetdir = realpath(file_directory_path() . '/textimage/' . $preset['name']);
if (is_dir($presetdir)) {
_textimage_recursive_delete($presetdir);
@unlink($presetdir);
}
}
function _textimage_recursive_delete($path) {
$listing = $path . "/*";
foreach (glob($listing) as $file) {
if (is_file($file) === true) {
@unlink($file);
}
elseif (is_dir($file) === true) {
_textimage_recursive_delete($file);
@rmdir($file);
}
}
@rmdir($path);
}
function _textimage_font_list($fontdir) {
$filelist = array();
if (is_dir($fontdir) && ($handle = opendir($fontdir))) {
while ($file = readdir($handle)) {
if (preg_match("/\\.ttf\$/i", $file) == 1) {
$filelist[] = $file;
}
}
closedir($handle);
}
return $filelist;
}
function _textimage_number_validate($field, $field_name) {
if (!empty($field['#value']) && !is_numeric($field['#value'])) {
form_set_error($field_name, t('The value for %field must be a number.', array(
'%field' => $field['#title'],
)));
}
}
function _textimage_hex_validate($field, $field_name) {
if (!empty($field['#value']) && !preg_match('/^#[0123456789ABCDEF]{1,6}$/i', $field['#value'])) {
form_set_error($field_name, t('The value for %field must be in a hexidecimal format (i.e. #FFFFFF is white).', array(
'%field' => $field['#title'],
)));
}
}
function _textimage_image_list($imagesdir) {
$filelist = array();
if (is_dir($imagesdir) && ($handle = opendir($imagesdir))) {
while ($file = readdir($handle)) {
if (preg_match("/\\.gif|\\.png|\\.jpg\$/i", $file) == 1) {
$filelist[] = $imagesdir . '/' . $file;
}
}
closedir($handle);
}
return $filelist;
}
function _textimage_create_transparent_image($x, $y) {
$i = imagecreatetruecolor($x, $y);
$b = imagecreatefromstring(base64_decode(_textimage_blankpng()));
imagealphablending($i, false);
imagesavealpha($i, true);
imagecopyresized($i, $b, 0, 0, 0, 0, $x, $y, imagesx($b), imagesy($b));
return $i;
}
function _textimage_blankpng() {
$c = "iVBORw0KGgoAAAANSUhEUgAAACgAAAAoCAYAAACM/rhtAAAABGdBTUEAAK/INwWK6QAAABl0RVh0U29m";
$c .= "dHdhcmUAQWRvYmUgSW1hZ2VSZWFkeXHJZTwAAADqSURBVHjaYvz//z/DYAYAAcTEMMgBQAANegcCBNCg";
$c .= "dyBAAA16BwIE0KB3IEAADXoHAgTQoHcgQAANegcCBNCgdyBAAA16BwIE0KB3IEAADXoHAgTQoHcgQAAN";
$c .= "egcCBNCgdyBAAA16BwIE0KB3IEAADXoHAgTQoHcgQAANegcCBNCgdyBAAA16BwIE0KB3IEAADXoHAgTQ";
$c .= "oHcgQAANegcCBNCgdyBAAA16BwIE0KB3IEAADXoHAgTQoHcgQAANegcCBNCgdyBAAA16BwIE0KB3IEAA";
$c .= "DXoHAgTQoHcgQAANegcCBNCgdyBAgAEAMpcDTTQWJVEAAAAASUVORK5CYII=";
return $c;
}
function _textimage_hex2rgb($hex) {
$hex = ltrim($hex, '#');
if (preg_match('/^[0-9a-f]{3}$/i', $hex)) {
$r = str_repeat($hex[0], 2);
$g = str_repeat($hex[1], 2);
$b = str_repeat($hex[2], 2);
}
elseif (preg_match('/^[0-9a-f]{6}$/i', $hex)) {
$r = substr($hex, 0, 2);
$g = substr($hex, 2, 2);
$b = substr($hex, 4, 2);
}
$r = hexdec($r);
$g = hexdec($g);
$b = hexdec($b);
return array(
$r,
$g,
$b,
);
}
function textimage_path($preset, $text, $additional_text = array(), $format = 'png') {
$additional_text = array_reverse($additional_text);
$path = file_directory_path() . '/textimage/' . $preset . '/' . (empty($additional_text) ? '' : implode('/', $additional_text) . '/') . $text . '.' . $format;
return drupal_urlencode(str_replace(' ', '_', $path));
}
function theme_textimage_image($preset, $text, $additional_text = array(), $format = 'png', $alt = '', $title = '', $attributes = array(), $getsize = TRUE) {
$path = textimage_path($preset, $text, $additional_text, $format);
if ($getsize && is_file($path)) {
list($width, $height, $type, $image_attributes) = @getimagesize($path);
}
$attributes = drupal_attributes($attributes);
return '<img src="' . check_url(base_path() . $path) . '" alt="' . check_plain($alt) . '" title="' . check_plain($title) . '" ' . $image_attributes . $attributes . ' />';
}
