Improved scale action

Improved scale action

(account deleted) 21 Feb 2008 08:43

Here is a patch for the scale action which adds a 'Scale down only' parameter.

--- /usr/local/src/phatch-0.1.bzr385/phatch/actions/scale.py    2008-02-21 09:32:48.000000000 +0100
+++ /home/fma/.phatch/actions/scale.py    2008-02-21 09:33:16.000000000 +0100
@@ -50,6 +50,7 @@
         fields[_t('Resolution')]             = self.DpiField('<%s>'%_t('dpi'))
         fields[_t('Constrain Proportions')]  = self.BooleanField(True)
         fields[_t('Resample Image')]         = self.ImageResampleField('bicubic')
+        fields[_t('Scale down only')]        = self.BooleanField(True)
 
     def apply_pil(self,image):
         return image
@@ -64,8 +65,9 @@
         x0, y0              = info[new('Pil.Size')]
         x1                  = self.get_field_size('Width',info,x0,dpi)
         y1                  = self.get_field_size('Height',info,y0,dpi)
-        #check if image size has changed
-        if x0!=x1 or y0!=y1:
+        scaleDownOnly       = self.get_field('Scale down only',info)
+        # check if image size has changed
+        if (x0!=x1 or y0!=y1) and (not scaleDownOnly or (scaleDownOnly and (x1<x0 or y1<y0))):
             proportions     = self.get_field('Constrain Proportions',info)
             method          = self.get_field('Resample Image',info)
             method          = getattr(Image,method)

Last edited on 21 Feb 2008 08:51 by (account deleted) Show more

Re: Improved scale action

stani 21 Feb 2008 15:27

Accepted in bzr388, but scaleDownOnly is turned off by default.

Re: Improved scale action

nEJC 05 May 2008 13:29

Another diff:

61,62d60
<       #underlaying image could have changed, update info
<       photo.update_size()
67a66
>         info                = photo.get_info()

i came across this when I wanted to rescale 90 degree rotated images …