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x11test3.py
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x11test3.py
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import sys
import os
# Change path so we find Xlib
sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
from Xlib import X, display, Xutil
from Xlib.ext import shape
# Application window (only one)
class Window(object):
def __init__(self, display):
self.d = display
# Check for extension
if not self.d.has_extension('SHAPE'):
sys.stderr.write('%s: server does not have SHAPE extension\n'
% sys.argv[1])
sys.exit(1)
# print(version)
r = self.d.shape_query_version()
print('SHAPE version %d.%d' % (r.major_version, r.minor_version))
# Find which screen to open the window on
self.screen = self.d.screen()
# background pattern
bgsize = 20
bgpm = self.screen.root.create_pixmap(bgsize, bgsize, self.screen.root_depth)
bggc = self.screen.root.create_gc(foreground = self.screen.black_pixel,
background = self.screen.black_pixel)
bgpm.fill_rectangle(bggc, 0, 0, bgsize, bgsize)
bggc.change(foreground = self.screen.white_pixel)
bgpm.arc(bggc, -bgsize // 2, 0, bgsize, bgsize, 0, 360 * 64)
bgpm.arc(bggc, bgsize // 2, 0, bgsize, bgsize, 0, 360 * 64)
bgpm.arc(bggc, 0, -bgsize // 2, bgsize, bgsize, 0, 360 * 64)
bgpm.arc(bggc, 0, bgsize // 2, bgsize, bgsize, 0, 360 * 64)
# Actual window
self.window = self.screen.root.create_window(
100, 100, 400, 300, 0,
self.screen.root_depth,
X.InputOutput,
X.CopyFromParent,
# special attribute values
background_pixmap = bgpm,
event_mask = (X.StructureNotifyMask |
X.ButtonPressMask | X.ButtonReleaseMask),
colormap = X.CopyFromParent,
)
# Set some WM info
self.WM_DELETE_WINDOW = self.d.intern_atom('WM_DELETE_WINDOW')
self.WM_PROTOCOLS = self.d.intern_atom('WM_PROTOCOLS')
self.window.set_wm_name('Xlib example: shapewin.py')
self.window.set_wm_icon_name('shapewin.py')
self.window.set_wm_class('shapewin', 'XlibExample')
self.window.set_wm_protocols([self.WM_DELETE_WINDOW])
self.window.set_wm_hints(flags = Xutil.StateHint,
initial_state = Xutil.NormalState)
self.window.set_wm_normal_hints(flags = (Xutil.PPosition | Xutil.PSize
| Xutil.PMinSize),
min_width = 50,
min_height = 50)
# The add and subtract shapes
self.add_size = 60
self.add_pm = self.window.create_pixmap(self.add_size, self.add_size, 1)
gc = self.add_pm.create_gc(foreground = 0, background = 0)
self.add_pm.fill_rectangle(gc, 0, 0, self.add_size, self.add_size)
gc.change(foreground = 1)
self.add_pm.fill_arc(gc, 0, 0, self.add_size, self.add_size, 0, 360 * 64)
gc.free()
self.sub_size = 59
self.sub_pm = self.window.create_pixmap(self.sub_size, self.sub_size, 1)
gc = self.sub_pm.create_gc(foreground = 0, background = 0)
self.sub_pm.fill_rectangle(gc, 0, 0, self.sub_size, self.sub_size)
gc.change(foreground = 1)
self.sub_pm.fill_poly(gc, X.Convex, X.CoordModeOrigin,
[(self.sub_size // 2, 0),
(self.sub_size, self.sub_size // 2),
(self.sub_size // 2, self.sub_size),
(0, self.sub_size // 2)])
gc.free()
# Set initial mask
self.window.shape_mask(shape.SO.Set, shape.SK.Bounding,
0, 0, self.add_pm)
self.window.shape_mask(shape.SO.Union, shape.SK.Bounding,
400 - self.add_size, 0, self.add_pm)
self.window.shape_mask(shape.SO.Union, shape.SK.Bounding,
0, 300 - self.add_size, self.add_pm)
self.window.shape_mask(shape.SO.Union, shape.SK.Bounding,
400 - self.add_size, 300 - self.add_size,
self.add_pm)
# Tell X server to send us mask events
self.window.shape_select_input(1)
# Map the window, making it visible
self.window.map()
# Main loop, handling events
def loop(self):
current = None
while 1:
e = self.d.next_event()
# Window has been destroyed, quit
if e.type == X.DestroyNotify:
sys.exit(0)
# Button released, add or subtract
elif e.type == X.ButtonRelease:
if e.detail == 1:
self.window.shape_mask(shape.SO.Union,
shape.SK.Bounding,
e.event_x - self.add_size // 2,
e.event_y - self.add_size // 2,
self.add_pm)
elif e.detail == 3:
self.window.shape_mask(shape.SO.Subtract,
shape.SK.Bounding,
e.event_x - self.sub_size // 2,
e.event_y - self.sub_size // 2,
self.sub_pm)
# Shape has changed
elif e.type == self.d.extension_event.ShapeNotify:
print('Shape change')
# Somebody wants to tell us something
elif e.type == X.ClientMessage:
if e.client_type == self.WM_PROTOCOLS:
fmt, data = e.data
if fmt == 32 and data[0] == self.WM_DELETE_WINDOW:
sys.exit(0)
if __name__ == '__main__':
Window(display.Display("localhost:0.0")).loop()