sugarlabs/sugar-toolkit-gtk3
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Use screenshot for overlay window background

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Instead of requiring a compositing manager for the transparent background
of the OverlayWindow, take a screenshot and use that instead.
This commit is contained in:
Dan Williams 2007-01-31 11:31:52 -05:00
parent f196eb264e
commit de2cfecf92
2 changed files with 26 additions and 8 deletions
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4
shell/view/ActivityHost.py
View File

@ -96,14 +96,14 @@ class ActivityHost:
def chat_show(self, frame_was_visible):
if self._overlay_window:
self._overlay_window.show_all()
self._overlay_window.appear()
self._chat_window.show_all()
self._frame_was_visible = frame_was_visible
def chat_hide(self):
self._chat_window.hide()
if self._overlay_window:
self._overlay_window.hide()
self._overlay_window.disappear()
wasvis = self._frame_was_visible
self._frame_was_visible = False
return wasvis

30
shell/view/OverlayWindow.py
View File

@ -17,16 +17,21 @@
import gtk
import cairo
def _grab_pixbuf(window=None):
if not window:
screen = gtk.gdk.screen_get_default()
window = screen.get_root_window()
color_map = gtk.gdk.colormap_get_system()
(x, y, w, h, bpp) = window.get_geometry()
return gtk.gdk.pixbuf_get_from_drawable(None, window, color_map, x, y, 0, 0, w, h)
class OverlayWindow(gtk.Window):
def __init__(self, lower_window):
gtk.Window.__init__(self)
self._lower_window = lower_window
colormap = self.get_screen().get_rgba_colormap()
colormap=None
if not colormap:
raise RuntimeError("The window manager doesn't support compositing.")
self.set_colormap(colormap)
self._img = gtk.Image()
self.add(self._img)
self.realize()
@ -39,7 +44,20 @@ class OverlayWindow(gtk.Window):
self.set_default_size(gtk.gdk.screen_width(), gtk.gdk.screen_height())
self.set_app_paintable(True)
self.connect('expose-event', self._expose_cb)
# self.connect('expose-event', self._expose_cb)
def appear(self):
pbuf = _grab_pixbuf(self._lower_window)
#pbuf.saturate_and_pixelate(pbuf, 0.5, False)
w = pbuf.get_width()
h = pbuf.get_height()
pbuf2 = pbuf.composite_color_simple(w, h, gtk.gdk.INTERP_NEAREST, 100, 1024, 0, 0)
self._img.set_from_pixbuf(pbuf2)
self.show_all()
def disappear(self):
self._img.set_from_pixbuf(None)
self.hide()
def _expose_cb(self, widget, event):
cr = widget.window.cairo_create()