WIP: try with rsvg and cairorsvg-and-cairo

   Unfortunately I just couldn't get the examples working with rsvg and
   cairo, so I will have to try something else.
   References:
   http://code.activestate.com/lists/python-list/595078/
   https://grokbase.com/t/python/python-list/112fsd3tyw/displaying-svg-in-tkinter-using-cairo-and-rsvg

1 files changed, 11 insertions, 7 deletions

diff --git a/logout-manager-tcl.py b/logout-manager-tcl.py
index cfeb851..0a0a1f7 100755
--- a/logout-manager-tcl.py
+++ b/logout-manager-tcl.py
@@ -29,11 +29,8 @@
 #    tkinter: python36-tkinter | python3-tk
 #    PIL: python36-pillow-tk | python3-pil.imagetk
 #    cairo: python36-cairo | python3-cairo
-#    Rsvg: python36-gobject | python3-gobject
+#    Rsvg: python36-gobject | gir1.2-rsvg-3.0
 
-from gi import require_version
-require_version('Rsvg', '2.0')
-from gi.repository import Rsvg
 import os, sys, configparser, glob, re, cairo
 import tkinter as tk
 import tkinter.ttk as ttk
@@ -42,6 +39,11 @@ from pathlib import Path
 from PIL import Image, ImageTk
 sys.path.append("/home/bgirton/dev/logout-manager")
 import lmlib
+WITH_SVG=True
+if not WITH_SVG is None and WITH_SVG:
+   from gi import require_version
+   require_version('Rsvg', '2.0')
+   from gi.repository import Rsvg as rsvg
 #if TkVersion < 8.6:
 #   USE_PRIVATE_TCL_IMAGES = 1
 #   print("Loading private PIL translation layter")
@@ -86,7 +88,7 @@ def convert(bgra_buffer, width, height):
 
 def photoimage_from_svg(file_path_name):
      '''Return a Tkinter.PhotoImage with the content set to the rendered SVG.'''
-     svg = rsvg.Handle(file=file_path_name)
+     svg = rsvg.Handle(file_path_name)
      width, height = svg.get_dimension_data()[:2]
      surface = cairo.ImageSurface(cairo.FORMAT_RGB24, int(width), int(height))
      context = cairo.Context(surface)
@@ -349,8 +351,10 @@ def get_scaled_icon(icon_name, size = 24, icon_theme = "default", fallback_icon_
          photo = photoimage_from_svg(iconfilename)
       else:
          photo = Image.open(iconfilename)
-   except:
-      print("Error with icon file.")
+   except Exception as e:
+      print("Error with icon file:",e)
+      if "gobject" in str(e):
+         raise
       return None
    # If I ever add HiDPI stuff, multiple size here by the factor. So, size * 1.25
    photo.thumbnail(size=[size, size])