1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
#!/usr/bin/python
#
# examples/shapewin.py -- demonstrate shape extension
#
# Copyright (C) 2002 Peter Liljenberg <petli@ctrl-c.liu.se>
#
# 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 2 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, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import sys
import os
# Change path so we find Xlib
sys.path.insert(1, os.path.join(sys.path[0], '..'))
from Xlib import X, display, Xutil
from Xlib.ext import shape
# Application window (only one)
class Window:
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.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.ShapeSet, shape.ShapeBounding,
0, 0, self.add_pm)
self.window.shape_mask(shape.ShapeUnion, shape.ShapeBounding,
400 - self.add_size, 0, self.add_pm)
self.window.shape_mask(shape.ShapeUnion, shape.ShapeBounding,
0, 300 - self.add_size, self.add_pm)
self.window.shape_mask(shape.ShapeUnion, shape.ShapeBounding,
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.ShapeUnion,
shape.ShapeBounding,
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.ShapeSubtract,
shape.ShapeBounding,
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()).loop()
|
