modules/transformer/transformer_transforms.module

<?php
/**
 * default transformer transforms
 */

/**
 * return an array of transforms implemented by this module.
 *
 * 'basename' => array( 'title'=>'', 'mimes'=>'', 'extensions'=>array(), 'queue'=>BOOL );
 *  basename is the basename from which functions _form and _perform will be generated.
 *  title is a human readable title
 *  mimes is an array of valid mime types this transform can operate on.
 *  extensions is an array of valid extensions this transform can operate on.
 */
function transformer_transforms_transformer() {
  return array(
    'transformer_transforms_crop' => array(
      'title' => t('Crop'),
      'mimes' => array('image/jpeg','image/gif','image/png'),
      'extensions' => array('gif','jpg','jpeg','png'),
      'queue' => FALSE,
    ),
    'transformer_transforms_scale' =>  array(
      'title' => t('Scale'),
      'mimes' => array('image/jpeg','image/gif','image/png'),
      'extensions' => array('gif','jpg','jpeg','png'),
      'queue' => FALSE,
    ),
    'transformer_transforms_resize' => array(
      'title' => t('Resize'),
      'mimes' => array('image/jpeg','image/gif','image/png'),
      'extensions' => array('gif','jpg','jpeg','png'),
      'queue' => FALSE,
    ),
    'transformer_transforms_fill' => array(
      'title' => t('Fill'),
      'mimes' => array('image/jpeg','image/gif','image/png'),
      'extensions' => array('gif','jpg','jpeg','png'),
      'queue' => FALSE,
    ),
    'transformer_transforms_rotate' => array(    
      'title' => t('Rotate'),
      'mimes' => array('image/jpeg','image/gif','image/png'),
      'extensions' => array('gif','jpg','jpeg','png'),
      'queue' => FALSE,
    ),
  );
}

function transformer_transforms_crop_form($data) {
  //debug_msg($transform);
  $form = array();
  $form['width'] = array(
    '#type' => 'textfield',
    '#size' => 15,'#maxlength' => 30,
    '#title' => t('Width'),
    '#default_value' => $data['width'],
  );
  $form['height'] = array(
    '#type' => 'textfield',
    '#title' => t('Height'),
    '#size' => 15,'#maxlength' => 30,
    '#default_value' => $data['height'],
  );
  $form['xoffset'] = array(
    '#type' => 'textfield',
    '#title' => t('X Offset'),
    '#size' => 15,'#maxlength' => 30,
    '#default_value' => $data['xoffset'],
  );
  $form['yoffset'] = array(
    '#type' => 'textfield',
    '#title' => t('Y Offset'),
    '#size' => 15,'#maxlength' => 30,
    '#default_value' => $data['yoffset'],
  );
  $form['#validate'] = array('transformer_crop_form_validate' => array());
  return $form;
}

function transformer_transforms_crop_form_validate() {
}

function transformer_transforms_crop_perform($source, $destination, $data) {
  return image_crop($source, $destination, $data['xoffset'] , $data['yoffset'], $data['width'], $data['height']);
}

function transformer_transforms_scale_form($data) {
  $form = array();
  $form['width'] = array(
    '#type' => 'textfield',
    '#size' => 15,'#maxlength' => 30,
    '#title' => t('Width'),
    '#default_value' => $data['width'],
  );
  $form['height'] = array(
    '#type' => 'textfield',
    '#size' => 15,'#maxlength' => 30,
    '#title' => t('Height'),
    '#default_value' => $data['height'],
  );
  $form['#validate'] = array('transformer_transforms_scale_form_validate' => array());
  return $form;
}

function transformer_transforms_scale_form_validate() {
}

function transformer_transforms_scale_perform($source, $destination, $data) {
  //drupal_set_message('scale: '. $source .', '. $destination .', '. $data['width'] .', '. $data['height']);
  return image_scale($source, $destination, $data['width'], $data['height']);
}

function transformer_transforms_resize_form($data) {
  $form = array();
  $form['width'] = array(
    '#type' => 'textfield',
    '#size' => 15,'#maxlength' => 30,
    '#title' => t('Width'),
    '#default_value' => $data['width'],
  );
  $form['height'] = array(
    '#type' => 'textfield',
    '#size' => 15,'#maxlength' => 30,
    '#title' => t('Height'),
    '#default_value' => $data['height'],
  );
  $form['#validate'] = array('transformer_transforms_resize_form_validate' => array());
  return $form;
}

function transformer_transforms_resize_form_validate() {
}

function transformer_transforms_resize_perform($source, $destination, $data) {
  return image_resize($source, $destination, $data['width'], $data['height']);
}


function transformer_transforms_fill_form($data) {
  $form = array();
  $form['fill_color'] = array(
    '#type' => 'textfield',
    '#title' => t('Fill color'),
    '#size' => 15,'#maxlength' => 30,
    '#default_value' => $data['fill_color'],
  );
  $form['#validate'] = array('transformer_transforms_fill_form_validate' => array());
  return $form;
}

function transformer_transforms_fill_form_validate() {
}

function transformer_transforms_fill_perform($source, $destination, $data) { //*
  _transformer_transforms_hex2rgb($data['fill_color'],$r,$g,$b);
  return image_toolkit_invoke('fill', array($source, $destination, $r, $g, $b));
}

function transformer_transforms_rotate_info() {
  return array(
    'title' => t('Rotate'),
    'mimes' => array('image/jpeg','image/gif','image/png'),
    'extensions' => array('gif','jpg','jpeg','png'),
  );
}

function transformer_transforms_rotate_form($data) {
  $form = array();
  $form['degrees'] = array(
    '#type' => 'textfield',
    '#size' => 15,'#maxlength' => 30,
    '#title' => t('Degrees'),
    '#default_value' => $data['degrees'],
  );
  $form['#validate'] = array('transformer_transforms_rotate_form_validate' => array());
  return $form;
}

function transformer_transforms_rotate_form_validate() {
}

function transformer_transforms_rotate_perform($source, $destination, $data) {
  return image_rotate($source, $destination, $data['degreess']);
}


/**
 * Convert a hex string to it's rgb integer components
 * $hex can be in the formats: '#ABC','ABC','#AABBCC','AABBCC'
 *
 */
function _transformer_hex2rgb($hex, &$r, &$g, &$b) {
  $hex = ltrim($hex,'#');
  if (preg_match('/^[0-9a-f]{3}$/i',$hex)) {
    // 'FA3' is the same as 'FFAA33' so r=FF, g=AA, b=33
    $r = str_repeat($hex{0},2);
    $g = str_repeat($hex{1},2);
    $b = str_repeat($hex{2},2);
  }
  elseif (preg_match('/^[0-9a-f]{6}$/i',$hex)) {
    // #FFAA33 or r=FF, g=AA, b=33
    list($r,$g,$b) = str_split($hex,2);
  }
  else {
    //error: invalide hex string, TODO: set form error..
    return FALSE;
  }

  $r = hexdec($r);
  $g = hexdec($g);
  $b = hexdec($b);
  return TRUE;
}

/**
 * Verify the image module and toolkit settings.
 * @todo: hook_requirements
 */
function _transformer_check_settings() {
  // Sanity check : make sure we've got a working toolkit
  if (!image_get_toolkit()) {
    drupal_set_message(t('Make sure you have a working image toolkit installed and enabled, for more information see: %settings', array('%settings' => l(t('the settings page'), 'admin/settings'))), 'error');
    return FALSE;
  }
  return TRUE;
}

1	<?php
2	/**
3	* default transformer transforms
4	*/
5
6	/**
7	* return an array of transforms implemented by this module.
8	*
9	* 'basename' => array( 'title'=>'', 'mimes'=>'', 'extensions'=>array(), 'queue'=>BOOL );
10	* basename is the basename from which functions _form and _perform will be generated.
11	* title is a human readable title
12	* mimes is an array of valid mime types this transform can operate on.
13	* extensions is an array of valid extensions this transform can operate on.
14	*/
15	function transformer_transforms_transformer() {
16	return array(
17	'transformer_transforms_crop' => array(
18	'title' => t('Crop'),
19	'mimes' => array('image/jpeg','image/gif','image/png'),
20	'extensions' => array('gif','jpg','jpeg','png'),
21	'queue' => FALSE,
22	),
23	'transformer_transforms_scale' => array(
24	'title' => t('Scale'),
25	'mimes' => array('image/jpeg','image/gif','image/png'),
26	'extensions' => array('gif','jpg','jpeg','png'),
27	'queue' => FALSE,
28	),
29	'transformer_transforms_resize' => array(
30	'title' => t('Resize'),
31	'mimes' => array('image/jpeg','image/gif','image/png'),
32	'extensions' => array('gif','jpg','jpeg','png'),
33	'queue' => FALSE,
34	),
35	'transformer_transforms_fill' => array(
36	'title' => t('Fill'),
37	'mimes' => array('image/jpeg','image/gif','image/png'),
38	'extensions' => array('gif','jpg','jpeg','png'),
39	'queue' => FALSE,
40	),
41	'transformer_transforms_rotate' => array(
42	'title' => t('Rotate'),
43	'mimes' => array('image/jpeg','image/gif','image/png'),
44	'extensions' => array('gif','jpg','jpeg','png'),
45	'queue' => FALSE,
46	),
47	);
48	}
49
50	function transformer_transforms_crop_form($data) {
51	//debug_msg($transform);
52	$form = array();
53	$form['width'] = array(
54	'#type' => 'textfield',
55	'#size' => 15,'#maxlength' => 30,
56	'#title' => t('Width'),
57	'#default_value' => $data['width'],
58	);
59	$form['height'] = array(
60	'#type' => 'textfield',
61	'#title' => t('Height'),
62	'#size' => 15,'#maxlength' => 30,
63	'#default_value' => $data['height'],
64	);
65	$form['xoffset'] = array(
66	'#type' => 'textfield',
67	'#title' => t('X Offset'),
68	'#size' => 15,'#maxlength' => 30,
69	'#default_value' => $data['xoffset'],
70	);
71	$form['yoffset'] = array(
72	'#type' => 'textfield',
73	'#title' => t('Y Offset'),
74	'#size' => 15,'#maxlength' => 30,
75	'#default_value' => $data['yoffset'],
76	);
77	$form['#validate'] = array('transformer_crop_form_validate' => array());
78	return $form;
79	}
80
81	function transformer_transforms_crop_form_validate() {
82	}
83
84	function transformer_transforms_crop_perform($source, $destination, $data) {
85	return image_crop($source, $destination, $data['xoffset'] , $data['yoffset'], $data['width'], $data['height']);
86	}
87
88	function transformer_transforms_scale_form($data) {
89	$form = array();
90	$form['width'] = array(
91	'#type' => 'textfield',
92	'#size' => 15,'#maxlength' => 30,
93	'#title' => t('Width'),
94	'#default_value' => $data['width'],
95	);
96	$form['height'] = array(
97	'#type' => 'textfield',
98	'#size' => 15,'#maxlength' => 30,
99	'#title' => t('Height'),
100	'#default_value' => $data['height'],
101	);
102	$form['#validate'] = array('transformer_transforms_scale_form_validate' => array());
103	return $form;
104	}
105
106	function transformer_transforms_scale_form_validate() {
107	}
108
109	function transformer_transforms_scale_perform($source, $destination, $data) {
110	//drupal_set_message('scale: '. $source .', '. $destination .', '. $data['width'] .', '. $data['height']);
111	return image_scale($source, $destination, $data['width'], $data['height']);
112	}
113
114	function transformer_transforms_resize_form($data) {
115	$form = array();
116	$form['width'] = array(
117	'#type' => 'textfield',
118	'#size' => 15,'#maxlength' => 30,
119	'#title' => t('Width'),
120	'#default_value' => $data['width'],
121	);
122	$form['height'] = array(
123	'#type' => 'textfield',
124	'#size' => 15,'#maxlength' => 30,
125	'#title' => t('Height'),
126	'#default_value' => $data['height'],
127	);
128	$form['#validate'] = array('transformer_transforms_resize_form_validate' => array());
129	return $form;
130	}
131
132	function transformer_transforms_resize_form_validate() {
133	}
134
135	function transformer_transforms_resize_perform($source, $destination, $data) {
136	return image_resize($source, $destination, $data['width'], $data['height']);
137	}
138
139
140	function transformer_transforms_fill_form($data) {
141	$form = array();
142	$form['fill_color'] = array(
143	'#type' => 'textfield',
144	'#title' => t('Fill color'),
145	'#size' => 15,'#maxlength' => 30,
146	'#default_value' => $data['fill_color'],
147	);
148	$form['#validate'] = array('transformer_transforms_fill_form_validate' => array());
149	return $form;
150	}
151
152	function transformer_transforms_fill_form_validate() {
153	}
154
155	function transformer_transforms_fill_perform($source, $destination, $data) { //*
156	_transformer_transforms_hex2rgb($data['fill_color'],$r,$g,$b);
157	return image_toolkit_invoke('fill', array($source, $destination, $r, $g, $b));
158	}
159
160	function transformer_transforms_rotate_info() {
161	return array(
162	'title' => t('Rotate'),
163	'mimes' => array('image/jpeg','image/gif','image/png'),
164	'extensions' => array('gif','jpg','jpeg','png'),
165	);
166	}
167
168	function transformer_transforms_rotate_form($data) {
169	$form = array();
170	$form['degrees'] = array(
171	'#type' => 'textfield',
172	'#size' => 15,'#maxlength' => 30,
173	'#title' => t('Degrees'),
174	'#default_value' => $data['degrees'],
175	);
176	$form['#validate'] = array('transformer_transforms_rotate_form_validate' => array());
177	return $form;
178	}
179
180	function transformer_transforms_rotate_form_validate() {
181	}
182
183	function transformer_transforms_rotate_perform($source, $destination, $data) {
184	return image_rotate($source, $destination, $data['degreess']);
185	}
186
187
188
189	/**
190	* Convert a hex string to it's rgb integer components
191	* $hex can be in the formats: '#ABC','ABC','#AABBCC','AABBCC'
192	*
193	*/
194	function _transformer_hex2rgb($hex, &$r, &$g, &$b) {
195	$hex = ltrim($hex,'#');
196	if (preg_match('/^[0-9a-f]{3}$/i',$hex)) {
197	// 'FA3' is the same as 'FFAA33' so r=FF, g=AA, b=33
198	$r = str_repeat($hex{0},2);
199	$g = str_repeat($hex{1},2);
200	$b = str_repeat($hex{2},2);
201	}
202	elseif (preg_match('/^[0-9a-f]{6}$/i',$hex)) {
203	// #FFAA33 or r=FF, g=AA, b=33
204	list($r,$g,$b) = str_split($hex,2);
205	}
206	else {
207	//error: invalide hex string, TODO: set form error..
208	return FALSE;
209	}
210
211	$r = hexdec($r);
212	$g = hexdec($g);
213	$b = hexdec($b);
214	return TRUE;
215	}
216
217	/**
218	* Verify the image module and toolkit settings.
219	* @todo: hook_requirements
220	*/
221	function _transformer_check_settings() {
222	// Sanity check : make sure we've got a working toolkit
223	if (!image_get_toolkit()) {
224	drupal_set_message(t('Make sure you have a working image toolkit installed and enabled, for more information see: %settings', array('%settings' => l(t('the settings page'), 'admin/settings'))), 'error');
225	return FALSE;
226	}
227	return TRUE;
228	}
229