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@achadwick
Created August 18, 2015 17:34
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gdk-screen-layout-tester
#!/usr/bin/env python
# Draws the layout of the current GdkScreen.
# CC0 1.0 2014-12-15 Andrew Chadwick, all rights waived
# https://creativecommons.org/publicdomain/zero/1.0/
import logging
from gi.repository import Gtk
from gi.repository import Gdk
APP_NAME = "mypaint-usertest-gdk-screens"
logger = logging.getLogger(APP_NAME)
class Tester (object):
MARGIN = 20
def __init__(self):
super(Tester, self).__init__()
w = Gtk.Window()
w.set_title(APP_NAME)
w.connect("destroy", self._destroy_cb)
d = Gtk.DrawingArea()
d.set_size_request(600, 500)
d.connect("draw", self._draw_cb)
w.add(d)
self._main_window = w
self._drawing_area = d
screen = d.get_screen()
screen.connect("size-changed", self._screen_size_changed)
screen.connect("monitors-changed", self._screen_monitors_changed)
def run(self):
self._main_window.show_all()
Gtk.main()
def _destroy_cb(self, win):
Gtk.main_quit()
def _draw_cb(self, da, cr):
cr.set_source_rgb(1,1,1)
cr.paint()
dw = da.get_allocated_width()
dh = da.get_allocated_height()
cr.translate(self.MARGIN, self.MARGIN)
ew = dw - 2.0*self.MARGIN
eh = dh - 2.0*self.MARGIN
cr.translate(ew/2, eh/2)
screen = da.get_screen()
sw = screen.get_width()
sh = screen.get_height()
scale = min(ew/sw, eh/sh)
cr.scale(scale, scale)
cr.translate(-sw/2, -sh/2)
cr.set_source_rgba(0, 0, 0, 0.05)
cr.rectangle(0, 0, sw, sh)
cr.fill()
mpn = screen.get_primary_monitor()
for mn in range(screen.get_n_monitors()):
geom = screen.get_monitor_geometry(mn)
mx = geom.x
my = geom.y
mw = geom.width
mh = geom.height
cr.rectangle(mx, my, mw, mh)
if mn == mpn:
cr.set_source_rgba(0.8, 0, 0, 0.1)
cr.fill_preserve()
cr.set_source_rgb(0.8,0,0)
cr.set_line_width(5)
cr.stroke()
else:
cr.set_source_rgba(0, 0, 0, 0.05)
cr.fill_preserve()
cr.set_source_rgb(0,0,0)
cr.set_line_width(1)
cr.stroke()
def _screen_size_changed(self, *a):
self._drawing_area.queue_draw()
def _screen_monitors_changed(self, *a):
self._drawing_area.queue_draw()
if __name__ == '__main__':
logging.basicConfig(level=logging.DEBUG)
app = Tester()
app.run()
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