152 lines
3.9 KiB
Python
Executable File
152 lines
3.9 KiB
Python
Executable File
#!/usr/bin/python
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#
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# examples/childwin.py -- demonstrate child windows.
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#
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# Copyright (C) 2008 David Bronke <whitelynx@gmail.com>
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# Copyright (C) 2002 Peter Liljenberg <petli@ctrl-c.liu.se>
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public License
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# as published by the Free Software Foundation; either version 2.1
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# of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the
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# Free Software Foundation, Inc.,
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# 59 Temple Place,
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# Suite 330,
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# Boston, MA 02111-1307 USA
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# Python 2/3 compatibility.
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from __future__ import print_function
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import sys
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import os
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# Change path so we find Xlib
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sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
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from Xlib import X, display, Xutil
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# Application window
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class Window(object):
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def __init__(self, display):
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self.d = display
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# Find which screen to open the window on
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self.screen = self.d.screen()
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# background pattern
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bgsize = 20
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bgpm = self.screen.root.create_pixmap(
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bgsize,
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bgsize,
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self.screen.root_depth
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)
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bggc = self.screen.root.create_gc(
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foreground=self.screen.black_pixel,
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background=self.screen.black_pixel
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)
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bgpm.fill_rectangle(bggc, 0, 0, bgsize, bgsize)
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bggc.change(foreground=self.screen.white_pixel)
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bgpm.arc(bggc, -bgsize // 2, 0, bgsize, bgsize, 0, 360 * 64)
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bgpm.arc(bggc, bgsize // 2, 0, bgsize, bgsize, 0, 360 * 64)
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bgpm.arc(bggc, 0, -bgsize // 2, bgsize, bgsize, 0, 360 * 64)
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bgpm.arc(bggc, 0, bgsize // 2, bgsize, bgsize, 0, 360 * 64)
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# Actual window
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self.window = self.screen.root.create_window(
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100, 100, 400, 300, 0,
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self.screen.root_depth,
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X.InputOutput,
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X.CopyFromParent,
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# special attribute values
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background_pixmap=bgpm,
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event_mask=(
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X.StructureNotifyMask |
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X.ButtonReleaseMask
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),
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colormap=X.CopyFromParent
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)
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# Set some WM info
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self.WM_DELETE_WINDOW = self.d.intern_atom('WM_DELETE_WINDOW')
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self.WM_PROTOCOLS = self.d.intern_atom('WM_PROTOCOLS')
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self.window.set_wm_name('Xlib example: childwin.py')
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self.window.set_wm_icon_name('childwin.py')
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self.window.set_wm_class('childwin', 'XlibExample')
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self.window.set_wm_protocols([self.WM_DELETE_WINDOW])
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self.window.set_wm_hints(
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flags=Xutil.StateHint,
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initial_state=Xutil.NormalState
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)
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self.window.set_wm_normal_hints(
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flags=(Xutil.PPosition | Xutil.PSize | Xutil.PMinSize),
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min_width=50,
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min_height=50
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)
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# Map the window, making it visible
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self.window.map()
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# Child window
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(self.childWidth, self.childHeight) = (20, 20)
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self.childWindow = self.window.create_window(
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20, 20, self.childWidth, self.childHeight, 0,
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self.screen.root_depth,
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X.CopyFromParent,
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X.CopyFromParent,
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# special attribute values
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background_pixel=self.screen.white_pixel,
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colormap=X.CopyFromParent,
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)
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self.childWindow.map()
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# Main loop, handling events
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def loop(self):
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current = None
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while 1:
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e = self.d.next_event()
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# Window has been destroyed, quit
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if e.type == X.DestroyNotify:
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sys.exit(0)
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# Button released, add or subtract
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elif e.type == X.ButtonRelease:
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if e.detail == 1:
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print("Moving child window.")
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self.childWindow.configure(
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x=e.event_x - self.childWidth // 2,
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y=e.event_y - self.childHeight // 2
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)
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self.d.flush()
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# Somebody wants to tell us something
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elif e.type == X.ClientMessage:
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if e.client_type == self.WM_PROTOCOLS:
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fmt, data = e.data
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if fmt == 32 and data[0] == self.WM_DELETE_WINDOW:
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sys.exit(0)
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if __name__ == '__main__':
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Window(display.Display()).loop()
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