Form structure for the image rotate form.
Note that this is not a complete form, it only contains the portion of the form for configuring the rotate options. Therefore it does not not need to include metadata about the effect, nor a submit button.
$data: The current configuration for this rotate effect.
function image_rotate_form($data) {
$form['degrees'] = array(
'#type' => 'number',
'#default_value' => isset($data['degrees']) ? $data['degrees'] : 0,
'#title' => t('Rotation angle'),
'#description' => t('The number of degrees the image should be rotated. Positive numbers are clockwise, negative are counter-clockwise.'),
'#field_suffix' => '°',
'#required' => TRUE,
);
$form['bgcolor'] = array(
'#type' => 'textfield',
'#default_value' => isset($data['bgcolor']) ? $data['bgcolor'] : '#FFFFFF',
'#title' => t('Background color'),
'#description' => t('The background color to use for exposed areas of the image. Use web-style hex colors (#FFFFFF for white, #000000 for black). Leave blank for transparency on image types that support it.'),
'#size' => 7,
'#maxlength' => 7,
'#element_validate' => array(
'image_effect_color_validate',
),
);
$form['random'] = array(
'#type' => 'checkbox',
'#default_value' => isset($data['random']) ? $data['random'] : 0,
'#title' => t('Randomize'),
'#description' => t('Randomize the rotation angle for each image. The angle specified above is used as a maximum.'),
);
return $form;
}