mod_image_edit

Non destructive edits of images.

This adds a Edit image button on the media panel in the admin.

Clicking that button opens an image editor where the following editing parameters can be set:

• Rotation: in 90˚ increments, used to correct the orientation of an image
• Crop: crop any or all sides of an image
• Brightness: make an image more or less bright
• Contrast: enhances or lowers the contrast
• Roll: correct the rotation of an image (between 45˚ and -45˚)
• Tilt: rotate an image in the Y direction, as if the viewer moves up or down
• Pan: rotate an image in the X direction, as if the viewer moves left or right
• Lossless flag: use PNG or GIF for the output image, used for clip art and logos
• Crop center: mark a point that should stay in view when using automatic crops

All these operations are non-destructive. They are stored in the medium_edit_settings properties and applied whenever an image is resized using the {% image %} tag.

The original image stays untouched. Downloads will download the original image.

If the original image should be used for a preview then pass the original argument to the {% image %} tag options.

Accepted Events

This module handles the following notifier callbacks:

• observe_media_preview_options: Expand the image modifications that influence the generated preview image using m_image_edit:get_settings.
• observe_media_upload_rsc_props: Ensure medium_edit_settings is present/initialized on media upload.
• observe_rsc_update: Sanitize crop/rotation and related image-edit properties on resource updates.

Delegate callbacks:

• event/2 with submit messages: edit_form.