ideas how to integrate cropping and other image transformations into plone.app.imaging

1. Image transformations in
plone 4.1

2. plone.app.imaging
 blob support
 user configurable scales (controlpanel, GS)

3. cropped images?
 fixed aspect ratio
 useful eg for carousels
 no photoshop needed

4. packages
 Products.croppingimage
 simple crop solution
 collective.croppingimagefield
 can crop, zoom and scale
 collective.imagefieldng
 transform chains possible (eg thumb_sepia_crop)
 Products.RichImage
 clipping can be customized
 ...

5. drawbacks
 Limited support for
 Blobs
 plone.app.imaging scales

6. enter clippingimage
 archetypes.clippingimage on pypi
 defines a ClippingImageField
 AND has a patch for Archetypes.field.ImageField
scale method
<monkey:patch
description="Add support for cropping "
class="Products.Archetypes.Field.ImageField"
original="scale"
replacement=".utils.scale"
/>

7. monkeypatch?
 archetypes.clippingimage on pypi
 defines a ClippingImageField
 AND has a patch for Archetypes.field.ImageField
scale method
<monkey:patch
description="Add support for cropping "
class="Products.Archetypes.Field.ImageField"
original="scale"
replacement=".utils.scale"
/>

8. taking it further
 do it right: Plip 10174
 register Transforms (crop, grayscale, …) as named
Adapters
 hook up scale names with dimensions and
transform chains
name size filters
preview 200,200
preview_gray 200,200 grayscale
listing 30,30 crop, sepia

9. sounds great? - hands on!
 bring in your ideas
 openspace session tomorrow?
 (remote)sprint?
 badly need this for your project?
 interested?
 harald (at) webmeisterei.com

10. sounds great? - hands on!
 bring in your ideas
 openspace session tomorrow?
 (remote)sprint?
 badly need this for your project?
 interested?
 harald (at) webmeisterei.com