diff options
Diffstat (limited to 'modules/image/image.effects.inc')
| -rw-r--r-- | modules/image/image.effects.inc | 79 |
1 files changed, 76 insertions, 3 deletions
diff --git a/modules/image/image.effects.inc b/modules/image/image.effects.inc index 122af6c44..ea898f91f 100644 --- a/modules/image/image.effects.inc +++ b/modules/image/image.effects.inc @@ -14,6 +14,7 @@ function image_image_effect_info() { 'label' => t('Resize'), 'help' => t('Resizing will make images an exact set of dimensions. This may cause images to be stretched or shrunk disproportionately.'), 'effect callback' => 'image_resize_effect', + 'dimensions callback' => 'image_resize_dimensions', 'form callback' => 'image_resize_form', 'summary theme' => 'image_resize_summary', ), @@ -21,6 +22,7 @@ function image_image_effect_info() { 'label' => t('Scale'), 'help' => t('Scaling will maintain the aspect-ratio of the original image. If only a single dimension is specified, the other dimension will be calculated.'), 'effect callback' => 'image_scale_effect', + 'dimensions callback' => 'image_scale_dimensions', 'form callback' => 'image_scale_form', 'summary theme' => 'image_scale_summary', ), @@ -28,6 +30,7 @@ function image_image_effect_info() { 'label' => t('Scale and crop'), 'help' => t('Scale and crop will maintain the aspect-ratio of the original image, then crop the larger dimension. This is most useful for creating perfectly square thumbnails without stretching the image.'), 'effect callback' => 'image_scale_and_crop_effect', + 'dimensions callback' => 'image_resize_dimensions', 'form callback' => 'image_resize_form', 'summary theme' => 'image_resize_summary', ), @@ -35,6 +38,7 @@ function image_image_effect_info() { 'label' => t('Crop'), 'help' => t('Cropping will remove portions of an image to make it the specified dimensions.'), 'effect callback' => 'image_crop_effect', + 'dimensions callback' => 'image_resize_dimensions', 'form callback' => 'image_crop_form', 'summary theme' => 'image_crop_summary', ), @@ -42,11 +46,13 @@ function image_image_effect_info() { 'label' => t('Desaturate'), 'help' => t('Desaturate converts an image to grayscale.'), 'effect callback' => 'image_desaturate_effect', + 'dimensions passthrough' => TRUE, ), 'image_rotate' => array( 'label' => t('Rotate'), 'help' => t('Rotating an image may cause the dimensions of an image to increase to fit the diagonal.'), 'effect callback' => 'image_rotate_effect', + 'dimensions callback' => 'image_rotate_dimensions', 'form callback' => 'image_rotate_form', 'summary theme' => 'image_rotate_summary', ), @@ -80,6 +86,24 @@ function image_resize_effect(&$image, $data) { } /** + * Image dimensions callback; Resize. + * + * @param $dimensions + * Dimensions to be modified - an array with components width and height, in + * pixels. + * @param $data + * An array of attributes to use when performing the resize effect with the + * following items: + * - "width": An integer representing the desired width in pixels. + * - "height": An integer representing the desired height in pixels. + */ +function image_resize_dimensions(array &$dimensions, array $data) { + // The new image will have the exact dimensions defined for the effect. + $dimensions['width'] = $data['width']; + $dimensions['height'] = $data['height']; +} + +/** * Image effect callback; Scale an image resource. * * @param $image @@ -89,8 +113,8 @@ function image_resize_effect(&$image, $data) { * following items: * - "width": An integer representing the desired width in pixels. * - "height": An integer representing the desired height in pixels. - * - "upscale": A Boolean indicating that the image should be upscalled if - * the dimensions are larger than the original image. + * - "upscale": A boolean indicating that the image should be upscaled if the + * dimensions are larger than the original image. * * @return * TRUE on success. FALSE on failure to scale image. @@ -115,6 +139,26 @@ function image_scale_effect(&$image, $data) { } /** + * Image dimensions callback; Scale. + * + * @param $dimensions + * Dimensions to be modified - an array with components width and height, in + * pixels. + * @param $data + * An array of attributes to use when performing the scale effect with the + * following items: + * - "width": An integer representing the desired width in pixels. + * - "height": An integer representing the desired height in pixels. + * - "upscale": A boolean indicating that the image should be upscaled if the + * dimensions are larger than the original image. + */ +function image_scale_dimensions(array &$dimensions, array $data) { + if ($dimensions['width'] && $dimensions['height']) { + image_dimensions_scale($dimensions, $data['width'], $data['height'], $data['upscale']); + } +} + +/** * Image effect callback; Crop an image resource. * * @param $image @@ -198,7 +242,7 @@ function image_desaturate_effect(&$image, $data) { * An array of attributes to use when performing the rotate effect containing * the following items: * - "degrees": The number of (clockwise) degrees to rotate the image. - * - "random": A Boolean indicating that a random rotation angle should be + * - "random": A boolean indicating that a random rotation angle should be * used for this image. The angle specified in "degrees" is used as a * positive and negative maximum. * - "bgcolor": The background color to use for exposed areas of the image. @@ -241,3 +285,32 @@ function image_rotate_effect(&$image, $data) { } return TRUE; } + +/** + * Image dimensions callback; Rotate. + * + * @param $dimensions + * Dimensions to be modified - an array with components width and height, in + * pixels. + * @param $data + * An array of attributes to use when performing the rotate effect containing + * the following items: + * - "degrees": The number of (clockwise) degrees to rotate the image. + * - "random": A boolean indicating that a random rotation angle should be + * used for this image. The angle specified in "degrees" is used as a + * positive and negative maximum. + */ +function image_rotate_dimensions(array &$dimensions, array $data) { + // If the rotate is not random and the angle is a multiple of 90 degrees, + // then the new dimensions can be determined. + if (!$data['random'] && ((int) ($data['degrees']) == $data['degrees']) && ($data['degrees'] % 90 == 0)) { + if ($data['degrees'] % 180 != 0) { + $temp = $dimensions['width']; + $dimensions['width'] = $dimensions['height']; + $dimensions['height'] = $temp; + } + } + else { + $dimensions['width'] = $dimensions['height'] = NULL; + } +} |