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Diffstat (limited to 'grc/gui/Utils.py')
| -rw-r--r-- | grc/gui/Utils.py | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/grc/gui/Utils.py b/grc/gui/Utils.py index 83036a4b8..b5489d56e 100644 --- a/grc/gui/Utils.py +++ b/grc/gui/Utils.py @@ -19,8 +19,31 @@ 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): """ Rotate the coordinate by the given rotation. |