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7288/7290: image cropping fixes in ODFDoc

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Applied the patch from Matthias Basler attached to bug #7288,
without the rename of x and y variables to minimize the diff.

Code reviewed for correctness and retested manually.
Further work needed (probably on the master branch only):
1) DPI default of 96 -- need to verify platform independence
2) Proper refactoring of the code into ODF-specific pieces
and image manipulation that should go down into ImgManip.py
This commit is contained in:
Vassilii Khachaturov 2013-12-12 16:55:05 +02:00
parent 7a154fa680
commit 76df5d703a
1 changed files with 25 additions and 16 deletions
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41
src/plugins/docgen/ODFDoc.py
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@ -1028,26 +1028,35 @@ class ODFDoc(BaseDoc, TextDoc, DrawDoc):
if crop:
dpi = ImgManip.image_dpi(file_name)
if not dpi:
dpi = (96.0,96.0) #LibOO 3.6 assumes this if image contains no DPI info
if dpi:
(act_width, act_height) = ImgManip.image_actual_size(
x_cm, y_cm, crop[2] - crop[0], crop[3] - crop[1]
)
# Gramps cropping coordinates are [0, 100], so we need to convert to pixels
# No rounding here, would lead to unwanted effects.
start_x = crop[0]/100.0*x
start_y = crop[1]/100.0*y
end_x = crop[2]/100.0*x
end_y = crop[3]/100.0*y
# Need to keep the ratio intact, otherwise scaled images look stretched
# if the dimensions aren't close in size
(act_width, act_height) = ImgManip.image_actual_size(
x_cm, y_cm, int(end_x-start_x), int(end_y-start_y)
)
# ODF wants crop measurements in inch.
left = start_x/dpi[0]
right = (x - end_x)/dpi[0]
top = start_y/dpi[1]
bottom = (y - end_y)/dpi[1]
crop = (top, right, bottom, left)
left = ((crop[0]/100.0)*x)/dpi[0]
right = (x - ((crop[2]/100.0)*x))/dpi[0]
top = ((crop[1]/100.0)*y)/dpi[1]
bottom = (y - ((crop[3]/100.0)*y))/dpi[1]
self.StyleList_photos.append(
[pos, crop]
)
crop = (top, right, bottom, left)
pos += "_" + str(crop)
self.StyleList_photos.append(
[pos, crop]
)
pos += "_" + str(crop)
else:
(act_width, act_height) = ImgManip.image_actual_size(x_cm, y_cm, x, y)
else:
(act_width, act_height) = ImgManip.image_actual_size(x_cm, y_cm, x, y)