Abstracted out the use of Imagick vs. PIL

svn: r741

src/ImgManip.py

@@ -0,0 +1,106 @@
+#
+# Gramps - a GTK+/GNOME based genealogy program
+#
+# Copyright (C) 2000  Donald N. Allingham
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+
+import os
+import const
+
+#-------------------------------------------------------------------------
+#
+# Check for the python imaging library
+#
+#-------------------------------------------------------------------------
+try:
+    import PIL.Image
+    no_pil = 0
+except:
+    import popen2
+    import GDK
+    import GTK
+    import gtk
+    import GdkImlib
+    no_pil = 1
+
+class ImgManip:
+    def __init__(self,source):
+        self.source = source
+
+    def jpg_thumbnail(self,dest,width,height):
+        if no_pil:
+            w = int(width)
+            h = int(height)
+            cmd = "%s -geometry %dx%d '%s' 'jpg:%s'" % (const.convert,w,h,self.source,dest)
+            os.system(cmd)
+        else:
+            im = PIL.Image.open(self.source)
+            im.thumbnail((width,height))
+            if im.mode != 'RGB':
+                im.draft('RGB',im.size)
+                im = im.convert("RGB")
+            im.save(dest,"JPEG")
+
+    def png_thumbnail(self,dest,width,height):
+        if no_pil:
+            w = int(width)
+            h = int(height)
+            cmd = "%s -geometry %dx%d '%s' 'png:%s'" % (const.convert,w,h,self.source,dest)
+            os.system(cmd)
+        else:
+            im = PIL.Image.open(self.source)
+            im.thumbnail((width,height))
+            if im.mode != 'RGB':
+                im.draft('RGB',im.size)
+                im = im.convert("RGB")
+            im.save(dest,"PNG")
+
+    def size(self):
+        if no_pil:
+            img = GdkImlib.Image(self.source)
+            return (img.rgb_width,img.rgb_height)
+        else:
+            return PIL.Image.open(self.source).size
+    
+    def jpg_data(self):
+        if no_pil:
+            cmd = "%s '%s' 'jpg:-'" % (const.convert,self.source)
+            r,w = popen2.popen2(cmd)
+            buf = r.read()
+            r.close()
+            w.close()
+            return buf
+        else:
+            im = PIL.Image.open(self.source)
+            return im.tostring("jpeg","RGB")
+
+    def png_scale_data(self,x,y):
+        if no_pil:
+            cmd = "%s -geometry %dx%d'%s' 'jpg:-'" % (const.convert,x,y,self.source)
+            r,w = popen2.popen2(cmd)
+            buf = r.read()
+            r.close()
+            w.close()
+            return buf
+        else:
+            im = PIL.Image.open(self.source)
+            im.thumbnail((width,height))
+            if im.mode != 'RGB':
+                im.draft('RGB',im.size)
+                im = im.convert("RGB")
+            return im.tostring("png","RGB")
+