Merge branch 'dfsg-orig'

[debian/gnuradio] / grc / gui / Utils.py

diff --git a/grc/gui/Utils.py b/grc/gui/Utils.py
index ee6dc6cdc4aa2a62cddc7bc5d6a1ecce71bba496..b5489d56e7ac5cc2c866ee385f9625605a40e750 100644 (file)
--- a/grc/gui/Utils.py
+++ b/grc/gui/Utils.py
@@ -19,6 +19,30 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 
 from Constants import POSSIBLE_ROTATIONS
 from Cheetah.Template import Template
+import pygtk
+pygtk.require('2.0')
+import gtk
+import gobject
+
+def rotate_pixmap(gc, src_pixmap, dst_pixmap, angle=gtk.gdk.PIXBUF_ROTATE_COUNTERCLOCKWISE):
+       """
+       Load the destination pixmap with a rotated version of the source pixmap.
+       The source pixmap will be loaded into a pixbuf, rotated, and drawn to the destination pixmap.
+       The pixbuf is a client-side drawable, where a pixmap is a server-side drawable.
+       @param gc the graphics context
+       @param src_pixmap the source pixmap
+       @param dst_pixmap the destination pixmap
+       @param angle the angle to rotate by
+       """
+       width, height = src_pixmap.get_size()
+       pixbuf = gtk.gdk.Pixbuf(
+               colorspace=gtk.gdk.COLORSPACE_RGB,
+               has_alpha=False, bits_per_sample=8,
+               width=width, height=height,
+       )
+       pixbuf.get_from_drawable(src_pixmap, src_pixmap.get_colormap(), 0, 0, 0, 0, -1, -1)
+       pixbuf = pixbuf.rotate_simple(angle)
+       dst_pixmap.draw_pixbuf(gc, pixbuf, 0, 0, 0, 0)
 
 def get_rotated_coordinate(coor, rotation):
        """
@@ -54,23 +78,6 @@ def get_angle_from_coordinates((x1,y1), (x2,y2)):
                if y2 > y1: return 270
                else: return 90
 
-def xml_encode(string):
-       """
-       Encode a string into an xml safe string by replacing special characters.
-       Needed for gtk pango markup in labels.
-       @param string the input string
-       @return output string with safe characters
-       """
-       string = str(string)
-       for char, safe in (
-                       ('&', '&'),
-                       ('<', '&lt;'),
-                       ('>', '&gt;'),
-                       ('"', '&quot;'),
-                       ("'", '&apos;'),
-       ): string = string.replace(char, safe)
-       return string
-
 def parse_template(tmpl_str, **kwargs):
        """
        Parse the template string with the given args.
@@ -78,5 +85,5 @@ def parse_template(tmpl_str, **kwargs):
        @param tmpl_str the template as a string
        @return a string of the parsed template
        """
-       kwargs['encode'] = xml_encode
+       kwargs['encode'] = gobject.markup_escape_text
        return str(Template(tmpl_str, kwargs))