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Added image.type property (mainly useful for format conversion) #33

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merged 1 commit into from Aug 22, 2012

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@ewiger
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@ewiger ewiger commented Aug 13, 2012

  • Added signature for the MagickGetImageType

modified: wand/image.py

  • Exposed more tuples in all defining low-level types.

  • Implemented image.type() property, .e.g

    if img.type == 'grayscale':
    img.type = 'grayscalematte'
    assert img.type == 'grayscalematte'

- Added signature for the MagickGetImageType

modified:   wand/image.py
- Exposed more tuples in _all_ defining low-level types.
- Implemented image.type() property, .e.g

    if img.type == 'grayscale':
        img.type = 'grayscalematte'
    assert img.type == 'grayscalematte'
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@travisbot travisbot commented Aug 13, 2012

This pull request passes (merged 9343398 into 2b2370d).

@@ -21,7 +21,8 @@
from .resource import DestroyedResourceError, Resource


__all__ = 'FILTER_TYPES', 'Image', 'Iterator', 'ClosedImageError'
__all__ = 'FILTER_TYPES', 'COMPOSITE_OPS', 'CHANNELS', 'EVALUATE_OPS',\
'IMAGE_TYPES', 'Image', 'Iterator', 'ClosedImageError'

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@dahlia

dahlia Aug 13, 2012
Collaborator

Where are those constants (COMPOSITE_OPS, CHANNELS, EVALUATE_OPS, IMAGE_TYPES) defined?

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@ewiger

ewiger Aug 13, 2012
Author

see wand.image before first class

raise TypeError("Type value must be a string from IMAGE_TYPES"
', not ' + repr(image_type))
library.MagickSetImageType(
self.wand, IMAGE_TYPES.index(image_type))

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@dahlia

dahlia Aug 13, 2012
Collaborator

Aren’t there any possibilities that it fails? If then, it should raise a proper error.

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@pflorczyk

pflorczyk Aug 20, 2012
Contributor

It can fail in multiple ways. In type setter, after library call it should check if there are any exceptions by calling self.raise_exception().
If you commit this I will try to fix that and write basic tests (Image.alpha_channel property affects Image.type).

@dahlia
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@dahlia dahlia commented Aug 13, 2012

Can you write some tests for this property?

@dahlia dahlia merged commit 9343398 into emcconville:master Aug 22, 2012
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dahlia added a commit that referenced this pull request Aug 22, 2012
dahlia added a commit that referenced this pull request Aug 22, 2012
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4 participants