width, height order was not consistent everywhere

getSizeFromImageDisplay method was returning (heigh, width), but all other
 methods were returning (widht height). In addition to this, there was
 mistakes :
from Document/Image.py +295 :
                        'width': self.getSizeFromImageDisplay(id)[0],
                        'height': self.getSizeFromImageDisplay(id)[1],
and also l 450:
      (width, height) = self.getSizeFromImageDisplay(display)

the use of width and height was mixed up.
Currently, all default preferences display size define squares (width = heigh),
 so this mistake was never detected.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@31531 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/Image.py

@@ -513,7 +513,7 @@ class Image(File, OFSImage):
       width_preference = 'preferred_%s_image_width' % (image_display,)
       height = preference_tool.getPreference(height_preference)
       width = preference_tool.getPreference(width_preference)
-      return (height, width)
+      return (width, height)
     return None
 
   def _setFile(self, *args, **kw):

product/ERP5Form/ImageField.py

@@ -149,7 +149,7 @@ class ImageFieldWidget(Widget.TextWidget):
 
       # set the size of the image
       if display is not None:
-        height, width = image_object.getSizeFromImageDisplay(display)
+        width, height = image_object.getSizeFromImageDisplay(display)
         width, height = image_object._getAspectRatioSize(width, height)
         if draw_frame_node.attrib.get('{%s}width' % SVG_URI, {}) != {} and \
         draw_frame_node.attrib.get('{%s}height' % SVG_URI, {}) != {}: