def configure_event(widget, event, data):
'''The "configure_event" signal handler. Any processing required when
the OpenGL-capable drawing area is re-configured should be done here.
Almost always it will be used to resize the OpenGL viewport when
the window is resized.'''
allocation = widget.get_allocation()
w = allocation.width
h = allocation.height
# OpenGL BEGIN
if not GtkGLExt.widget_begin_gl(widget):
return False
GL.glViewport(0, 0, w, h)
GL.glMatrixMode(GL.GL_PROJECTION)
GL.glLoadIdentity()
GL.glOrtho(-50., 50., -50., 50., -1., 1.)
GL.glMatrixMode(GL.GL_MODELVIEW)
GL.glLoadIdentity()
GtkGLExt.widget_end_gl(widget, False)
# OpenGL END
return True
def realize(widget, data):
'''The "realize" signal handler. All the OpenGL initialization
should be performed here, such as default background colour,
certain states etc.'''
# OpenGL BEGIN
if not GtkGLExt.widget_begin_gl(widget):
return
GL.glClearColor(0., 0., 0., 0.)
GL.glShadeModel(GL.GL_FLAT)
GtkGLExt.widget_end_gl(widget, False)
def draw (widget, cr, data):
'''The "draw" signal handler. All the OpenGL re-drawing should
be done here. This is repeatedly called as the painting routine
every time the 'draw' event is signalled.'''
# OpenGL BEGIN
if not GtkGLExt.widget_begin_gl(widget):
return False
GL.glClear(GL.GL_COLOR_BUFFER_BIT)
GL.glPushMatrix()
GL.glRotatef(spin, 0., 0., 1.)
GL.glColor3f(1., 1., 1.)
GL.glRectf(-25., -25., 25., 25.)
GL.glPopMatrix()
GtkGLExt.widget_end_gl(widget, True)
# OpenGL END
return True
def __enter__(self):
#self.context = GtkGLExt.widget_create_gl_context(self.widget)
assert GtkGLExt.widget_begin_gl(self.widget)
# -*- coding: utf-8 -*-
# This file is part of Xpra.
# Copyright (C) 2011-2018 Antoine Martin <*****@*****.**>
# Xpra is released under the terms of the GNU GPL v2, or, at your option, any
# later version. See the file COPYING for details.
from xpra.gtk_common.gobject_compat import is_gtk3
from xpra.log import Logger
log = Logger("gtk", "util", "opengl")
if is_gtk3():
from gi.repository import Gtk, GdkGLExt, GtkGLExt #@UnresolvedImport
gtk = Gtk
GdkGLExt.init_check(0, "")
GtkGLExt.init_check(0, "")
MODE_DEPTH = GdkGLExt.ConfigMode.DEPTH
MODE_RGBA = GdkGLExt.ConfigMode.RGBA
MODE_ALPHA = GdkGLExt.ConfigMode.ALPHA
MODE_RGB = GdkGLExt.ConfigMode.RGB
MODE_DOUBLE = GdkGLExt.ConfigMode.DOUBLE
MODE_SINGLE = GdkGLExt.ConfigMode.SINGLE
RGBA_TYPE = GdkGLExt.RenderType.RGBA_TYPE
def get_info():
return {
"gdkgl": {
"version": GdkGLExt._version
}, #pylint: disable=protected-access
"gtkgl": {
def __enter__(self):
#self.context = GtkGLExt.widget_create_gl_context(self.widget)
assert GtkGLExt.widget_begin_gl(self.widget)
# Copyright (C) 2011-2014 Antoine Martin <*****@*****.**>
# Xpra is released under the terms of the GNU GPL v2, or, at your option, any
# later version. See the file COPYING for details.
from xpra.gtk_common.gobject_compat import is_gtk3
from xpra.log import Logger
log = Logger("gtk", "util", "opengl")
if is_gtk3():
from gi.repository import Gtk, GdkGLExt, GtkGLExt #@UnresolvedImport
gtk = Gtk
GdkGLExt.init_check(0, "")
GtkGLExt.init_check(0, "")
MODE_DEPTH = GdkGLExt.ConfigMode.DEPTH
MODE_RGBA = GdkGLExt.ConfigMode.RGBA
MODE_ALPHA = GdkGLExt.ConfigMode.ALPHA
MODE_RGB = GdkGLExt.ConfigMode.RGB
MODE_DOUBLE = GdkGLExt.ConfigMode.DOUBLE
MODE_SINGLE = GdkGLExt.ConfigMode.SINGLE
RGBA_TYPE = GdkGLExt.RenderType.RGBA_TYPE
def get_info():
return {
"gdkgl" : {"version" : GdkGLExt._version},
"gtkgl" : {"version" : GtkGLExt._version},
}
gdkgl = GdkGLExt
def create_window(glconfig):
'''Creates the simple application window with one
drawing area that has an OpenGL-capable visual.'''
## Top-level window.
window = Gtk.Window(Gtk.WindowType.TOPLEVEL)
window.set_title(DEFAULT_TITLE)
# Get automatically redrawn if any of their children changed allocation.
window.set_reallocate_redraws(True)
# Connect signal handlers to the window
window.connect("delete_event", Gtk.main_quit)
## VBox.
vbox = Gtk.VBox(False, 0)
window.add(vbox)
vbox.show()
## Drawing area to draw OpenGL scene.
drawing_area = Gtk.DrawingArea()
drawing_area.set_size_request(DEFAULT_WIDTH, DEFAULT_HEIGHT)
# Set OpenGL-capability to the widget
GtkGLExt.widget_set_gl_capability(drawing_area,
glconfig,
None,
True,
GdkGLExt.RenderType.RGBA_TYPE)
drawing_area.add_events(
Gdk.EventMask.BUTTON1_MOTION_MASK |
Gdk.EventMask.BUTTON2_MOTION_MASK |
Gdk.EventMask.BUTTON_PRESS_MASK |
Gdk.EventMask.VISIBILITY_NOTIFY_MASK)
# Connect signal handlers to the drawing area
drawing_area.connect_after("realize", realize, None)
drawing_area.connect("configure_event", configure_event, None)
drawing_area.connect("draw", draw, None)
drawing_area.connect("motion_notify_event", motion_notify_event, None)
drawing_area.connect("button_press_event", button_press_event, None)
drawing_area.connect("unrealize", unrealize, None)
# key_press_event handler for top-level window
window.connect_object("key_press_event", key_press_event, drawing_area)
# For idle function.
drawing_area.connect("map_event", map_event, None)
drawing_area.connect("unmap_event", unmap_event, None)
drawing_area.connect("visibility_notify_event", visibility_notify_event, None)
vbox.pack_start(drawing_area, True, True, 0)
drawing_area.show()
# Popup menu.
menu = create_popup_menu(drawing_area)
drawing_area.connect_object("button_press_event", button_press_event_popup_menu, menu)
## Simple quit button.
button = Gtk.Button.new_with_label("Quit")
button.connect("clicked", Gtk.main_quit)
vbox.pack_start(button, False, False, 0)
button.show()
return window
