Created
April 17, 2009 21:06
-
-
Save skriticos/97256 to your computer and use it in GitHub Desktop.
Revisions
-
skriticos revised this gist
Mar 26, 2010 . 1 changed file with 5 additions and 17 deletions.There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -1,24 +1,12 @@ """ Transparent, irregular edge splash screen with pyGTK and XShape. Takes a png image with transparent section, creates a window with pyGTK, puts this image in there with cairo and then trims the edges with X11 XShape clipping extension. This file demonstrates a python script which loads a png image of size 800x650 and name base.png Then it creates a GTK+/Cairo window with opaque settings from the png file and the transparent portions cut out with a mask. Basic, but works and looks great. Note: this is a proof of concept file. It works, but it is by no means production ready. """ import sys -
Apr 17, 2009 . 1 changed file with 17 additions and 0 deletions.There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -2,6 +2,23 @@ This file demonstrates a python script which loads a png image of size 800x650 and name base.png Then it creates a GTK+/Cairo window with opaque settings from the png file and the transparent portions cut out with a mask. Basic, but works and looks great. (GPL v3 stuff:) Copyright (c) 2009 Sebastian Bartos <[email protected]> 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 3 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, see <http://www.gnu.org/licenses/>. """ import sys -
Apr 17, 2009 .There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -0,0 +1,125 @@ """ This file demonstrates a python script which loads a png image of size 800x650 and name base.png Then it creates a GTK+/Cairo window with opaque settings from the png file and the transparent portions cut out with a mask. Basic, but works and looks great. """ import sys import gobject import pango import pygtk import gtk from gtk import gdk import cairo import gobject class pngtranswin: def __init__(self): self.window = gtk.Window(gtk.WINDOW_TOPLEVEL) self.window.set_decorated(0) self.window.set_default_size(800, 650) self.window.set_events(gtk.gdk.ALL_EVENTS_MASK) # Initialize colors, alpha transparency self.window.set_app_paintable(1) self.gtk_screen = self.window.get_screen() colormap = self.gtk_screen.get_rgba_colormap() if colormap == None: colormap = self.gtk_screen.get_rgb_colormap() gtk.widget_set_default_colormap(colormap) if not self.window.is_composited(): self.supports_alpha = False else: self.supports_alpha = True self.w,self.h = self.window.get_size() self.window.connect("expose_event", self.expose) self.window.connect("destroy", gtk.main_quit) def expose (self, widget, event): self.ctx = self.window.window.cairo_create() # set a clip region for the expose event, XShape stuff self.ctx.save() if self.supports_alpha == False: self.ctx.set_source_rgb(1, 1, 1) else: self.ctx.set_source_rgba(1, 1, 1,0) self.ctx.set_operator (cairo.OPERATOR_SOURCE) self.ctx.paint() self.ctx.restore() self.ctx.rectangle(event.area.x, event.area.y, event.area.width, event.area.height) self.ctx.clip() self.draw_image(self.ctx,0,0,'base.png') def setup(self): # Set menu background image self.background = gtk.Image() self.frame = gtk.Fixed() self.window.add (self.frame) # Set window shape from alpha mask of background image w,h = self.window.get_size() if w==0: w = 800 if h==0: h = 650 self.w = w self.h = h self.pixmap = gtk.gdk.Pixmap (None, w, h, 1) ctx = self.pixmap.cairo_create() # todo: modify picture source #self.bgpb = gtk.gdk.pixbuf_new_from_file('base.png') ctx.save() ctx.set_source_rgba(1, 1, 1,0) ctx.set_operator (cairo.OPERATOR_SOURCE) ctx.paint() ctx.restore() self.draw_image(ctx,0,0,'base.png') if self.window.is_composited(): ctx.rectangle(0,0,w,h) ctx.fill() self.window.input_shape_combine_mask(self.pixmap,0,0) else: self.window.shape_combine_mask(self.pixmap, 0, 0) def draw_image(self,ctx,x,y, pix): """Draws a picture from specified path with a certain width and height""" ctx.save() ctx.translate(x, y) pixbuf = gtk.gdk.pixbuf_new_from_file(pix) format = cairo.FORMAT_RGB24 if pixbuf.get_has_alpha(): format = cairo.FORMAT_ARGB32 #if Images.flip != None: # pixbuf = pixbuf.flip(Images.flip) iw = pixbuf.get_width() ih = pixbuf.get_height() image = cairo.ImageSurface(format, iw, ih) image = ctx.set_source_pixbuf(pixbuf, 0, 0) ctx.paint() puxbuf = None image = None ctx.restore() ctx.clip() def show_window(self): self.window.show_all() while gtk.events_pending(): gtk.main_iteration() self.window.present() self.window.grab_focus() self.p = 1 if __name__ == "__main__": m = pngtranswin() m.setup() m.show_window() gtk.main()