From: Fredrik Unger <fredrik.unger@openchip.com>
Date: Mon, 2 Mar 2026 10:54:53 +0000 (+0100)
Subject: docbook: scaling only bitmap images
X-Git-Url: https://source.tree.se/git?a=commitdiff_plain;h=6fb09f2084fffed79537808a0255712f30681289;p=treecutter.git

docbook: scaling only bitmap images

selecting to scale only bitmap images, so that for example
svg images are untouched.
---

diff --git a/treecutter/docbook.py b/treecutter/docbook.py
index 912d0e2..213a75c 100644
--- a/treecutter/docbook.py
+++ b/treecutter/docbook.py
@@ -66,15 +66,18 @@ class Docbook():
         for i in images:
             os.chdir(self._dirname)
             im = i.get('fileref')
-            img = Image(im)
+            imf = im
             caption = db.caption()
-            for p in img.caption().split('\n\n'):
-                caption.append(db.para(p))
-            link = db.para(db.link(img.infostr(),
-                                   **{const.XLINK+"href": img.filename()}))
-            caption.append(link)
+            if im.endswith((".png", ".jpg")):
+                img = Image(im)
+                for p in img.caption().split('\n\n'):
+                    caption.append(db.para(p))
+                link = db.para(db.link(img.infostr(),
+                                       **{const.XLINK+"href": img.filename()}))
+                caption.append(link)
+                imf = img.resize(800,600)
             mo = db.mediaobject(db.imageobject(
-                db.imagedata(fileref=img.resize(800,600))),caption)
+                db.imagedata(fileref=imf)),caption)
             iop = i.getparent()
             mop = iop.getparent()
             mopp = mop.getparent()
diff --git a/treecutter/image.py b/treecutter/image.py
index 184d387..5f90a5a 100644
--- a/treecutter/image.py
+++ b/treecutter/image.py
@@ -31,7 +31,7 @@ class Image():
         outfile = "%s.%dx%d%s" % (outfile, size[0], size[1], ext)
         if not os.path.exists(outfile):
             im = PIL_Image.open(self._filename)
-            im.thumbnail(size, PIL_Image.ANTIALIAS)
+            im.thumbnail(size, PIL_Image.LANCZOS)
             if pad:
                 bg = PIL_Image.new('RGBA', size, (0, 0, 0, 0))
                 bg.paste(im,((size[0]-im.size[0])/2, (size[1]-im.size[1])/2))