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heroes-renaissance/pyglet/window/win32/__init__.py

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initial version
2008-11-23 20:07:47 +00:00
# ----------------------------------------------------------------------------
# pyglet
# Copyright (c) 2006-2008 Alex Holkner
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the name of pyglet nor the names of its
# contributors may be used to endorse or promote products
# derived from this software without specific prior written
# permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
# ----------------------------------------------------------------------------
'''
'''
__docformat__ = 'restructuredtext'
__version__ = '$Id: $'
from ctypes import *
import unicodedata
import warnings
import sys
if sys.platform not in ('cygwin', 'win32'):
raise ImportError('Not a win32 platform.')
import pyglet
from pyglet.window import Platform, Display, Screen, BaseWindow, \
WindowException, MouseCursor, DefaultMouseCursor, _PlatformEventHandler
from pyglet.window import event
from pyglet.event import EventDispatcher
from pyglet.window import key
from pyglet.window import mouse
from pyglet.window.win32.constants import *
from pyglet.window.win32.winkey import *
from pyglet.window.win32.types import *
from pyglet import gl
from pyglet.gl import gl_info
from pyglet.gl import glu_info
from pyglet.gl import wgl
from pyglet.gl import wglext_arb
from pyglet.gl import wgl_info
_debug_win32 = pyglet.options['debug_win32']
if _debug_win32:
import traceback
_GetLastError = windll.kernel32.GetLastError
_SetLastError = windll.kernel32.SetLastError
_FormatMessageA = windll.kernel32.FormatMessageA
_log_win32 = open('debug_win32.log', 'w')
def format_error(err):
msg = create_string_buffer(256)
_FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM,
c_void_p(),
err,
0,
msg,
len(msg),
c_void_p())
return msg.value
class DebugLibrary(object):
def __init__(self, lib):
self.lib = lib
def __getattr__(self, name):
fn = getattr(self.lib, name)
def f(*args):
_SetLastError(0)
result = fn(*args)
err = _GetLastError()
if err != 0:
map(_log_win32.write,
traceback.format_list(traceback.extract_stack()[:-1]))
print >> _log_win32, format_error(err)
return result
return f
else:
DebugLibrary = lambda lib: lib
_gdi32 = DebugLibrary(windll.gdi32)
_kernel32 = DebugLibrary(windll.kernel32)
_user32 = DebugLibrary(windll.user32)
_user32.GetKeyState.restype = c_short
_gdi32.CreateDIBitmap.argtypes = [HDC, POINTER(BITMAPINFOHEADER), DWORD,
c_void_p, POINTER(BITMAPINFO), c_uint]
# symbol,ctrl -> motion mapping
_motion_map = {
(key.UP, False): key.MOTION_UP,
(key.RIGHT, False): key.MOTION_RIGHT,
(key.DOWN, False): key.MOTION_DOWN,
(key.LEFT, False): key.MOTION_LEFT,
(key.RIGHT, True): key.MOTION_NEXT_WORD,
(key.LEFT, True): key.MOTION_PREVIOUS_WORD,
(key.HOME, False): key.MOTION_BEGINNING_OF_LINE,
(key.END, False): key.MOTION_END_OF_LINE,
(key.PAGEUP, False): key.MOTION_PREVIOUS_PAGE,
(key.PAGEDOWN, False): key.MOTION_NEXT_PAGE,
(key.HOME, True): key.MOTION_BEGINNING_OF_FILE,
(key.END, True): key.MOTION_END_OF_FILE,
(key.BACKSPACE, False): key.MOTION_BACKSPACE,
(key.DELETE, False): key.MOTION_DELETE,
}
class Win32Exception(WindowException):
pass
class Win32Platform(Platform):
_display = None
def get_default_display(self):
if not self._display:
self._display = Win32Display()
return self._display
class Win32Display(Display):
def get_screens(self):
screens = []
def enum_proc(hMonitor, hdcMonitor, lprcMonitor, dwData):
r = lprcMonitor.contents
width = r.right - r.left
height = r.bottom - r.top
screens.append(
Win32Screen(self, hMonitor, r.left, r.top, width, height))
return True
enum_proc_type = WINFUNCTYPE(BOOL, HMONITOR, HDC, POINTER(RECT), LPARAM)
enum_proc_ptr = enum_proc_type(enum_proc)
_user32.EnumDisplayMonitors(NULL, NULL, enum_proc_ptr, 0)
return screens
class Win32Screen(Screen):
def __init__(self, display, handle, x, y, width, height):
super(Win32Screen, self).__init__(x, y, width, height)
self.display = display
self._handle = handle
def get_matching_configs(self, template):
# Determine which technique should be used for finding matching configs.
# Use the builtin PIXELFORMATDESCRIPTOR if possible, otherwise resort
# to the WGL_ARB_pixel_format extension.
need_pixel_format_arb = False
if template.sample_buffers or template.samples:
need_pixel_format_arb = True
if need_pixel_format_arb:
# Need a GL context before we can query WGL extensions.
dummy_window = None
if not gl_info.have_context():
# Create a dummy context
config = self.get_best_config()
context = config.create_context(None)
dummy_window = Win32Window(visible=False, context=context)
try:
# Check for required extensions
if not wgl_info.have_extension('WGL_ARB_pixel_format'):
return []
return self._get_arb_pixel_format_matching_configs(template)
finally:
if dummy_window:
dummy_window.close()
return self._get_pixel_format_descriptor_matching_configs(template)
def _get_pixel_format_descriptor_matching_configs(self, template):
'''Get matching configs using standard PIXELFORMATDESCRIPTOR
technique.'''
pfd = PIXELFORMATDESCRIPTOR()
pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR)
pfd.nVersion = 1
pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL
if template.double_buffer:
pfd.dwFlags |= PFD_DOUBLEBUFFER
else:
pfd.dwFlags |= PFD_DOUBLEBUFFER_DONTCARE
if template.stereo:
pfd.dwFlags |= PFD_STEREO
else:
pfd.dwFlags |= PFD_STEREO_DONTCARE
'''Not supported in pyglet API
if attributes.get('swap_copy', False):
pfd.dwFlags |= PFD_SWAP_COPY
if attributes.get('swap_exchange', False):
pfd.dwFlags |= PFD_SWAP_EXCHANGE
'''
if not template.depth_size:
pfd.dwFlags |= PFD_DEPTH_DONTCARE
pfd.iPixelType = PFD_TYPE_RGBA
pfd.cColorBits = template.buffer_size or 0
pfd.cRedBits = template.red_size or 0
pfd.cGreenBits = template.green_size or 0
pfd.cBlueBits = template.blue_size or 0
pfd.cAlphaBits = template.alpha_size or 0
pfd.cAccumRedBits = template.accum_red_size or 0
pfd.cAccumGreenBits = template.accum_green_size or 0
pfd.cAccumBlueBits = template.accum_blue_size or 0
pfd.cAccumAlphaBits = template.accum_alpha_size or 0
pfd.cDepthBits = template.depth_size or 0
pfd.cStencilBits = template.stencil_size or 0
pfd.cAuxBuffers = template.aux_buffers or 0
# No window created yet, so lets create a config based on
# the DC of the entire screen.
hdc = _user32.GetDC(0)
pf = _gdi32.ChoosePixelFormat(hdc, byref(pfd))
if pf:
return [Win32Config(self, hdc, pf)]
else:
return []
def _get_arb_pixel_format_matching_configs(self, template):
'''Get configs using the WGL_ARB_pixel_format extension.
This method assumes a (dummy) GL context is already created.'''
# Check for required extensions
if template.sample_buffers or template.samples:
if not gl_info.have_extension('GL_ARB_multisample'):
return []
# Construct array of attributes
attrs = []
for name, value in template.get_gl_attributes():
attr = Win32ConfigARB.attribute_ids.get(name, None)
if attr and value is not None:
attrs.extend([attr, int(value)])
attrs.append(0)
attrs = (c_int * len(attrs))(*attrs)
hdc = _user32.GetDC(0)
pformats = (c_int * 16)()
nformats = c_uint(16)
wglext_arb.wglChoosePixelFormatARB(hdc, attrs, None,
nformats, pformats, nformats)
formats = [Win32ConfigARB(self, hdc, pf) \
for pf in pformats[:nformats.value]]
return formats
class Win32Config(gl.Config):
def __init__(self, screen, hdc, pf):
self.screen = screen
self._hdc = hdc
self._pf = pf
self._pfd = PIXELFORMATDESCRIPTOR()
_gdi32.DescribePixelFormat(self._hdc,
self._pf, sizeof(PIXELFORMATDESCRIPTOR), byref(self._pfd))
self.double_buffer = bool(self._pfd.dwFlags & PFD_DOUBLEBUFFER)
self.sample_buffers = 0
self.samples = 0
self.stereo = bool(self._pfd.dwFlags & PFD_STEREO)
self.buffer_size = self._pfd.cColorBits
self.red_size = self._pfd.cRedBits
self.green_size = self._pfd.cGreenBits
self.blue_size = self._pfd.cBlueBits
self.alpha_size = self._pfd.cAlphaBits
self.accum_red_size = self._pfd.cAccumRedBits
self.accum_green_size = self._pfd.cAccumGreenBits
self.accum_blue_size = self._pfd.cAccumBlueBits
self.accum_alpha_size = self._pfd.cAccumAlphaBits
self.depth_size = self._pfd.cDepthBits
self.stencil_size = self._pfd.cStencilBits
self.aux_buffers = self._pfd.cAuxBuffers
def create_context(self, share):
# The context can't be created until we have the DC of the
# window. It's _possible_ that this could screw things up
# (for example, destroying the share context before the new
# window is created), but these are unlikely and not in the
# ordinary workflow.
return Win32Context(self, share)
def is_complete(self):
return True
class Win32ConfigARB(Win32Config):
attribute_ids = {
'double_buffer': wglext_arb.WGL_DOUBLE_BUFFER_ARB,
'stereo': wglext_arb.WGL_STEREO_ARB,
'buffer_size': wglext_arb.WGL_COLOR_BITS_ARB,
'aux_buffers': wglext_arb.WGL_AUX_BUFFERS_ARB,
'sample_buffers': wglext_arb.WGL_SAMPLE_BUFFERS_ARB,
'samples': wglext_arb.WGL_SAMPLES_ARB,
'red_size': wglext_arb.WGL_RED_BITS_ARB,
'green_size': wglext_arb.WGL_GREEN_BITS_ARB,
'blue_size': wglext_arb.WGL_BLUE_BITS_ARB,
'alpha_size': wglext_arb.WGL_ALPHA_BITS_ARB,
'depth_size': wglext_arb.WGL_DEPTH_BITS_ARB,
'stencil_size': wglext_arb.WGL_STENCIL_BITS_ARB,
'accum_red_size': wglext_arb.WGL_ACCUM_RED_BITS_ARB,
'accum_green_size': wglext_arb.WGL_ACCUM_GREEN_BITS_ARB,
'accum_blue_size': wglext_arb.WGL_ACCUM_BLUE_BITS_ARB,
'accum_alpha_size': wglext_arb.WGL_ACCUM_ALPHA_BITS_ARB,
}
def __init__(self, screen, hdc, pf):
self.screen = screen
self._hdc = hdc
self._pf = pf
names, attrs = map(None, *self.attribute_ids.items())
attrs = (c_int * len(attrs))(*attrs)
values = (c_int * len(attrs))()
result = wglext_arb.wglGetPixelFormatAttribivARB(hdc,
pf, 0, len(attrs), attrs, values)
for name, value in zip(names, values):
setattr(self, name, value)
def create_context(self, share):
return Win32ContextARB(self, share)
class Win32Context(gl.Context):
_context = None
def __init__(self, config, share):
super(Win32Context, self).__init__(share)
self.config = config
self._share = share
def _set_window(self, window):
assert self._context is None
_gdi32.SetPixelFormat(
window._dc, self.config._pf, byref(self.config._pfd))
self._context = wgl.wglCreateContext(window._dc)
if self._share:
assert self._share._context is not None
if not wgl.wglShareLists(self._share._context, self._context):
raise gl.ContextException('Unable to share contexts')
def destroy(self):
super(Win32Context, self).destroy()
wgl.wglDeleteContext(self._context)
class Win32ContextARB(Win32Context):
def _set_window(self, window):
assert self._context is None
_gdi32.SetPixelFormat(window._dc, self.config._pf, None)
self._context = wgl.wglCreateContext(window._dc)
if self._share:
assert self._share._context is not None
if not wgl.wglShareLists(self._share._context, self._context):
raise gl.ContextException('Unable to share contexts')
class Win32MouseCursor(MouseCursor):
drawable = False
def __init__(self, cursor):
self.cursor = cursor
# This is global state, we have to be careful not to set the same state twice,
# which will throw off the ShowCursor counter.
_win32_cursor_visible = True
Win32EventHandler = _PlatformEventHandler
class Win32Window(BaseWindow):
_window_class = None
_hwnd = None
_dc = None
_wgl_context = None
_tracking = False
_hidden = False
_has_focus = False
_exclusive_keyboard = False
_exclusive_keyboard_focus = True
_exclusive_mouse = False
_exclusive_mouse_focus = True
_exclusive_mouse_screen = None
_exclusive_mouse_client = None
_mouse_platform_visible = True
_ws_style = 0
_ex_ws_style = 0
_minimum_size = None
_maximum_size = None
def __init__(self, *args, **kwargs):
# Bind event handlers
self._event_handlers = {}
for func_name in self._platform_event_names:
if not hasattr(self, func_name):
continue
func = getattr(self, func_name)
for message in func._platform_event_data:
self._event_handlers[message] = func
super(Win32Window, self).__init__(*args, **kwargs)
def _recreate(self, changes):
if 'context' in changes:
self._wgl_context = None
self._create()
def _create(self):
# Ensure style is set before determining width/height.
if self._fullscreen:
self._ws_style = WS_POPUP
self._ex_ws_style = 0 # WS_EX_TOPMOST
else:
styles = {
self.WINDOW_STYLE_DEFAULT: (WS_OVERLAPPEDWINDOW, 0),
self.WINDOW_STYLE_DIALOG: (WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU,
WS_EX_DLGMODALFRAME),
self.WINDOW_STYLE_TOOL: (WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU,
WS_EX_TOOLWINDOW),
self.WINDOW_STYLE_BORDERLESS: (WS_POPUP, 0),
}
self._ws_style, self._ex_ws_style = styles[self._style]
if self._resizable and not self._fullscreen:
self._ws_style |= WS_THICKFRAME
else:
self._ws_style &= ~(WS_THICKFRAME|WS_MAXIMIZEBOX)
width, height = self._client_to_window_size(self._width, self._height)
if not self._window_class:
module = _kernel32.GetModuleHandleW(None)
white = _gdi32.GetStockObject(WHITE_BRUSH)
self._window_class = WNDCLASS()
self._window_class.lpszClassName = u'GenericAppClass%d' % id(self)
self._window_class.lpfnWndProc = WNDPROC(self._wnd_proc)
self._window_class.style = CS_VREDRAW | CS_HREDRAW
self._window_class.hInstance = 0
self._window_class.hIcon = _user32.LoadIconW(module, 1)
self._window_class.hbrBackground = white
self._window_class.lpszMenuName = None
self._window_class.cbClsExtra = 0
self._window_class.cbWndExtra = 0
_user32.RegisterClassW(byref(self._window_class))
if not self._hwnd:
self._hwnd = _user32.CreateWindowExW(
self._ex_ws_style,
self._window_class.lpszClassName,
u'',
self._ws_style,
CW_USEDEFAULT,
CW_USEDEFAULT,
width,
height,
0,
0,
self._window_class.hInstance,
0)
self._dc = _user32.GetDC(self._hwnd)
else:
# Window already exists, update it with new style
# We need to hide window here, otherwise Windows forgets
# to redraw the whole screen after leaving fullscreen.
_user32.ShowWindow(self._hwnd, SW_HIDE)
_user32.SetWindowLongW(self._hwnd,
GWL_STYLE,
self._ws_style)
_user32.SetWindowLongW(self._hwnd,
GWL_EXSTYLE,
self._ex_ws_style)
if self._fullscreen:
hwnd_after = HWND_TOPMOST
else:
hwnd_after = HWND_NOTOPMOST
# Position and size window
if self._fullscreen:
_user32.SetWindowPos(self._hwnd, hwnd_after,
self._screen.x, self._screen.y, width, height, SWP_FRAMECHANGED)
elif False: # TODO location not in pyglet API
x, y = self._client_to_window_pos(*factory.get_location())
_user32.SetWindowPos(self._hwnd, hwnd_after,
x, y, width, height, SWP_FRAMECHANGED)
else:
_user32.SetWindowPos(self._hwnd, hwnd_after,
0, 0, width, height, SWP_NOMOVE | SWP_FRAMECHANGED)
# Context must be created after window is created.
if not self._wgl_context:
self.context._set_window(self)
self._wgl_context = self.context._context
self.set_caption(self._caption)
self.switch_to()
self.set_vsync(self._vsync)
if self._visible:
self.set_visible()
self.dispatch_event('on_expose')
def close(self):
super(Win32Window, self).close()
if not self._hwnd:
return
_user32.DestroyWindow(self._hwnd)
_user32.UnregisterClassW(self._window_class.lpszClassName, 0)
self.set_mouse_platform_visible(True)
self._hwnd = None
self._dc = None
self._wgl_context = None
def _get_vsync(self):
if wgl_info.have_extension('WGL_EXT_swap_control'):
return bool(wglext_arb.wglGetSwapIntervalEXT())
vsync = property(_get_vsync) # overrides BaseWindow property
def set_vsync(self, vsync):
if pyglet.options['vsync'] is not None:
vsync = pyglet.options['vsync']
if wgl_info.have_extension('WGL_EXT_swap_control'):
wglext_arb.wglSwapIntervalEXT(int(vsync))
else:
warnings.warn('Could not set vsync; unsupported extension.')
def switch_to(self):
wgl.wglMakeCurrent(self._dc, self._wgl_context)
self._context.set_current()
gl_info.set_active_context()
glu_info.set_active_context()
def flip(self):
self.draw_mouse_cursor()
wgl.wglSwapLayerBuffers(self._dc, wgl.WGL_SWAP_MAIN_PLANE)
def set_location(self, x, y):
x, y = self._client_to_window_pos(x, y)
_user32.SetWindowPos(self._hwnd, 0, x, y, 0, 0,
(SWP_NOZORDER |
SWP_NOSIZE |
SWP_NOOWNERZORDER))
def get_location(self):
rect = RECT()
_user32.GetClientRect(self._hwnd, byref(rect))
_user32.ClientToScreen(self._hwnd, byref(rect))
return rect.left, rect.top
def set_size(self, width, height):
if self._fullscreen:
raise WindowException('Cannot set size of fullscreen window.')
width, height = self._client_to_window_size(width, height)
_user32.SetWindowPos(self._hwnd, 0, 0, 0, width, height,
(SWP_NOZORDER |
SWP_NOMOVE |
SWP_NOOWNERZORDER))
def get_size(self):
rect = RECT()
_user32.GetClientRect(self._hwnd, byref(rect))
return rect.right - rect.left, rect.bottom - rect.top
def set_minimum_size(self, width, height):
self._minimum_size = width, height
def set_maximum_size(self, width, height):
self._maximum_size = width, height
def activate(self):
_user32.SetForegroundWindow(self._hwnd)
def set_visible(self, visible=True):
if visible:
if self._fullscreen:
_user32.SetWindowPos(self._hwnd, HWND_TOPMOST, 0, 0, 0, 0,
SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW)
else:
_user32.ShowWindow(self._hwnd, SW_SHOW)
self.dispatch_event('on_show')
self.activate()
else:
_user32.ShowWindow(self._hwnd, SW_HIDE)
self.dispatch_event('on_hide')
self._visible = visible
self.set_mouse_platform_visible()
def minimize(self):
_user32.ShowWindow(self._hwnd, SW_MINIMIZE)
def maximize(self):
_user32.ShowWindow(self._hwnd, SW_MAXIMIZE)
def set_caption(self, caption):
self._caption = caption
_user32.SetWindowTextW(self._hwnd, c_wchar_p(caption))
def set_mouse_platform_visible(self, platform_visible=None):
if platform_visible is None:
platform_visible = (self._mouse_visible and
not self._exclusive_mouse and
not self._mouse_cursor.drawable) or \
(not self._mouse_in_window or
not self._has_focus)
if platform_visible and not self._mouse_cursor.drawable:
if isinstance(self._mouse_cursor, Win32MouseCursor):
cursor = self._mouse_cursor.cursor
else:
cursor = _user32.LoadCursorW(None, IDC_ARROW)
_user32.SetClassLongW(self._hwnd, GCL_HCURSOR, cursor)
_user32.SetCursor(cursor)
if platform_visible == self._mouse_platform_visible:
return
# Avoid calling ShowCursor with the current visibility (which would
# push the counter too far away from zero).
global _win32_cursor_visible
if _win32_cursor_visible != platform_visible:
_user32.ShowCursor(platform_visible)
_win32_cursor_visible = platform_visible
self._mouse_platform_visible = platform_visible
def _reset_exclusive_mouse_screen(self):
'''Recalculate screen coords of mouse warp point for exclusive
mouse.'''
p = POINT()
rect = RECT()
_user32.GetClientRect(self._hwnd, byref(rect))
_user32.MapWindowPoints(self._hwnd, HWND_DESKTOP, byref(rect), 2)
p.x = (rect.left + rect.right) / 2
p.y = (rect.top + rect.bottom) / 2
# This is the point the mouse will be kept at while in exclusive
# mode.
self._exclusive_mouse_screen = p.x, p.y
self._exclusive_mouse_client = p.x - rect.left, p.y - rect.top
def set_exclusive_mouse(self, exclusive=True):
if self._exclusive_mouse == exclusive and \
self._exclusive_mouse_focus == self._has_focus:
return
if exclusive and self._has_focus:
# Move mouse to the center of the window.
self._reset_exclusive_mouse_screen()
_user32.SetCursorPos(*self._exclusive_mouse_screen)
# Clip to client area, to prevent large mouse movements taking
# it outside the client area.
rect = RECT()
_user32.GetClientRect(self._hwnd, byref(rect))
_user32.MapWindowPoints(self._hwnd, HWND_DESKTOP, byref(rect), 2)
_user32.ClipCursor(byref(rect))
else:
# Release clip
_user32.ClipCursor(c_void_p())
self._exclusive_mouse = exclusive
self._exclusive_mouse_focus = self._has_focus
self.set_mouse_platform_visible()
def set_exclusive_keyboard(self, exclusive=True):
if self._exclusive_keyboard == exclusive and \
self._exclusive_keyboard_focus == self._has_focus:
return
if exclusive and self._has_focus:
_user32.RegisterHotKey(self._hwnd, 0, WIN32_MOD_ALT, VK_TAB)
else:
_user32.UnregisterHotKey(self._hwnd, 0)
self._exclusive_keyboard = exclusive
self._exclusive_keyboard_focus = self._has_focus
def get_system_mouse_cursor(self, name):
if name == self.CURSOR_DEFAULT:
return DefaultMouseCursor()
names = {
self.CURSOR_CROSSHAIR: IDC_CROSS,
self.CURSOR_HAND: IDC_HAND,
self.CURSOR_HELP: IDC_HELP,
self.CURSOR_NO: IDC_NO,
self.CURSOR_SIZE: IDC_SIZEALL,
self.CURSOR_SIZE_UP: IDC_SIZENS,
self.CURSOR_SIZE_UP_RIGHT: IDC_SIZENESW,
self.CURSOR_SIZE_RIGHT: IDC_SIZEWE,
self.CURSOR_SIZE_DOWN_RIGHT: IDC_SIZENWSE,
self.CURSOR_SIZE_DOWN: IDC_SIZENS,
self.CURSOR_SIZE_DOWN_LEFT: IDC_SIZENESW,
self.CURSOR_SIZE_LEFT: IDC_SIZEWE,
self.CURSOR_SIZE_UP_LEFT: IDC_SIZENWSE,
self.CURSOR_SIZE_UP_DOWN: IDC_SIZENS,
self.CURSOR_SIZE_LEFT_RIGHT: IDC_SIZEWE,
self.CURSOR_TEXT: IDC_IBEAM,
self.CURSOR_WAIT: IDC_WAIT,
self.CURSOR_WAIT_ARROW: IDC_APPSTARTING,
}
if name not in names:
raise Win32Exception('Unknown cursor name "%s"' % name)
cursor = _user32.LoadCursorW(None, names[name])
return Win32MouseCursor(cursor)
def set_icon(self, *images):
# XXX Undocumented AFAICT, but XP seems happy to resize an image
# of any size, so no scaling necessary.
def best_image(width, height):
# A heuristic for finding closest sized image to required size.
image = images[0]
for img in images:
if img.width == width and img.height == height:
# Exact match always used
return img
elif img.width >= width and \
img.width * img.height > image.width * image.height:
# At least wide enough, and largest area
image = img
return image
def get_icon(image):
# Alpha-blended icon: see http://support.microsoft.com/kb/318876
format = 'BGRA'
pitch = len(format) * image.width
header = BITMAPV5HEADER()
header.bV5Size = sizeof(header)
header.bV5Width = image.width
header.bV5Height = image.height
header.bV5Planes = 1
header.bV5BitCount = 32
header.bV5Compression = BI_BITFIELDS
header.bV5RedMask = 0x00ff0000
header.bV5GreenMask = 0x0000ff00
header.bV5BlueMask = 0x000000ff
header.bV5AlphaMask = 0xff000000
hdc = _user32.GetDC(None)
dataptr = c_void_p()
bitmap = _gdi32.CreateDIBSection(hdc, byref(header), DIB_RGB_COLORS,
byref(dataptr), None, 0)
_user32.ReleaseDC(None, hdc)
data = image.get_data(format, pitch)
memmove(dataptr, data, len(data))
mask = _gdi32.CreateBitmap(image.width, image.height, 1, 1, None)
iconinfo = ICONINFO()
iconinfo.fIcon = True
iconinfo.hbmMask = mask
iconinfo.hbmColor = bitmap
icon = _user32.CreateIconIndirect(byref(iconinfo))
_gdi32.DeleteObject(mask)
_gdi32.DeleteObject(bitmap)
return icon
# Set large icon
image = best_image(_user32.GetSystemMetrics(SM_CXICON),
_user32.GetSystemMetrics(SM_CYICON))
icon = get_icon(image)
_user32.SetClassLongW(self._hwnd, GCL_HICON, icon)
# Set small icon
image = best_image(_user32.GetSystemMetrics(SM_CXSMICON),
_user32.GetSystemMetrics(SM_CYSMICON))
icon = get_icon(image)
_user32.SetClassLongW(self._hwnd, GCL_HICONSM, icon)
# Private util
def _client_to_window_size(self, width, height):
rect = RECT()
rect.left = 0
rect.top = 0
rect.right = width
rect.bottom = height
_user32.AdjustWindowRectEx(byref(rect),
self._ws_style, False, self._ex_ws_style)
return rect.right - rect.left, rect.bottom - rect.top
def _client_to_window_pos(self, x, y):
rect = RECT()
rect.left = x
rect.top = y
_user32.AdjustWindowRectEx(byref(rect),
self._ws_style, False, self._ex_ws_style)
return rect.left, rect.top
# Event dispatching
def dispatch_events(self):
self._allow_dispatch_event = True
self.dispatch_pending_events()
msg = MSG()
while _user32.PeekMessageW(byref(msg), 0, 0, 0, PM_REMOVE):
_user32.TranslateMessage(byref(msg))
_user32.DispatchMessageW(byref(msg))
self._allow_dispatch_event = False
def dispatch_pending_events(self):
while self._event_queue:
event = self._event_queue.pop(0)
if type(event[0]) is str:
# pyglet event
EventDispatcher.dispatch_event(self, *event)
else:
# win32 event
event[0](*event[1:])
def _wnd_proc(self, hwnd, msg, wParam, lParam):
event_handler = self._event_handlers.get(msg, None)
result = 0
if event_handler:
if self._allow_dispatch_event or not self._enable_event_queue:
result = event_handler(msg, wParam, lParam)
else:
self._event_queue.append((event_handler, msg, wParam, lParam))
result = 0
if not result and msg != WM_CLOSE:
result = _user32.DefWindowProcW(c_int(hwnd), c_int(msg),
c_int(wParam), c_int(lParam))
return result
# Event handlers
def _get_modifiers(self, key_lParam=0):
modifiers = 0
if _user32.GetKeyState(VK_SHIFT) & 0xff00:
modifiers |= key.MOD_SHIFT
if _user32.GetKeyState(VK_CONTROL) & 0xff00:
modifiers |= key.MOD_CTRL
if _user32.GetKeyState(VK_LWIN) & 0xff00:
modifiers |= key.MOD_WINDOWS
if _user32.GetKeyState(VK_CAPITAL) & 0x00ff: # toggle
modifiers |= key.MOD_CAPSLOCK
if _user32.GetKeyState(VK_NUMLOCK) & 0x00ff: # toggle
modifiers |= key.MOD_NUMLOCK
if _user32.GetKeyState(VK_SCROLL) & 0x00ff: # toggle
modifiers |= key.MOD_SCROLLLOCK
if key_lParam:
if key_lParam & (1 << 29):
modifiers |= key.MOD_ALT
elif _user32.GetKeyState(VK_MENU) < 0:
modifiers |= key.MOD_ALT
return modifiers
@staticmethod
def _get_location(lParam):
x = c_int16(lParam & 0xffff).value
y = c_int16(lParam >> 16).value
return x, y
@Win32EventHandler(WM_KEYDOWN)
@Win32EventHandler(WM_KEYUP)
@Win32EventHandler(WM_SYSKEYDOWN)
@Win32EventHandler(WM_SYSKEYUP)
def _event_key(self, msg, wParam, lParam):
repeat = False
if lParam & (1 << 30):
if msg not in (WM_KEYUP, WM_SYSKEYUP):
repeat = True
ev = 'on_key_release'
else:
ev = 'on_key_press'
symbol = keymap.get(wParam, None)
if symbol is None:
ch = _user32.MapVirtualKeyW(wParam, MAPVK_VK_TO_CHAR)
symbol = chmap.get(ch)
if symbol is None:
symbol = key.user_key(wParam)
elif symbol == key.LCTRL and lParam & (1 << 24):
symbol = key.RCTRL
elif symbol == key.LALT and lParam & (1 << 24):
symbol = key.RALT
elif symbol == key.LSHIFT:
pass # TODO: some magic with getstate to find out if it's the
# right or left shift key.
modifiers = self._get_modifiers(lParam)
if not repeat:
self.dispatch_event(ev, symbol, modifiers)
ctrl = modifiers & key.MOD_CTRL != 0
if (symbol, ctrl) in _motion_map and msg not in (WM_KEYUP, WM_SYSKEYUP):
motion = _motion_map[symbol, ctrl]
if modifiers & key.MOD_SHIFT:
self.dispatch_event('on_text_motion_select', motion)
else:
self.dispatch_event('on_text_motion', motion)
# Send on to DefWindowProc if not exclusive.
if self._exclusive_keyboard:
return 0
else:
return None
@Win32EventHandler(WM_CHAR)
def _event_char(self, msg, wParam, lParam):
text = unichr(wParam)
if unicodedata.category(text) != 'Cc' or text == '\r':
self.dispatch_event('on_text', text)
return 0
@Win32EventHandler(WM_MOUSEMOVE)
def _event_mousemove(self, msg, wParam, lParam):
x, y = self._get_location(lParam)
if (x, y) == self._exclusive_mouse_client:
# Ignore the event caused by SetCursorPos
self._mouse_x = x
self._mouse_y = y
return 0
y = self.height - y
if self._exclusive_mouse and self._has_focus:
# Reset mouse position (so we don't hit the edge of the screen).
_user32.SetCursorPos(*self._exclusive_mouse_screen)
dx = x - self._mouse_x
dy = y - self._mouse_y
if not self._tracking:
# There is no WM_MOUSEENTER message (!), so fake it from the
# first WM_MOUSEMOVE event after leaving. Use self._tracking
# to determine when to recreate the tracking structure after
# re-entering (to track the next WM_MOUSELEAVE).
self._mouse_in_window = True
self.set_mouse_platform_visible()
self.dispatch_event('on_mouse_enter', x, y)
self._tracking = True
track = TRACKMOUSEEVENT()
track.cbSize = sizeof(track)
track.dwFlags = TME_LEAVE
track.hwndTrack = self._hwnd
_user32.TrackMouseEvent(byref(track))
# Don't generate motion/drag events when mouse hasn't moved. (Issue
# 305)
if self._mouse_x == x and self._mouse_y == y:
return 0
self._mouse_x = x
self._mouse_y = y
buttons = 0
if wParam & MK_LBUTTON:
buttons |= mouse.LEFT
if wParam & MK_MBUTTON:
buttons |= mouse.MIDDLE
if wParam & MK_RBUTTON:
buttons |= mouse.RIGHT
if buttons:
# Drag event
modifiers = self._get_modifiers()
self.dispatch_event('on_mouse_drag',
x, y, dx, dy, buttons, modifiers)
else:
# Motion event
self.dispatch_event('on_mouse_motion', x, y, dx, dy)
return 0
@Win32EventHandler(WM_MOUSELEAVE)
def _event_mouseleave(self, msg, wParam, lParam):
point = POINT()
_user32.GetCursorPos(byref(point))
_user32.ScreenToClient(self._hwnd, byref(point))
x = point.x
y = self.height - point.y
self._tracking = False
self._mouse_in_window = False
self.set_mouse_platform_visible()
self.dispatch_event('on_mouse_leave', x, y)
return 0
def _event_mousebutton(self, ev, button, lParam):
if ev == 'on_mouse_press':
_user32.SetCapture(self._hwnd)
else:
_user32.ReleaseCapture()
x, y = self._get_location(lParam)
y = self.height - y
self.dispatch_event(ev, x, y, button, self._get_modifiers())
return 0
@Win32EventHandler(WM_LBUTTONDOWN)
def _event_lbuttondown(self, msg, wParam, lParam):
return self._event_mousebutton(
'on_mouse_press', mouse.LEFT, lParam)
@Win32EventHandler(WM_LBUTTONUP)
def _event_lbuttonup(self, msg, wParam, lParam):
return self._event_mousebutton(
'on_mouse_release', mouse.LEFT, lParam)
@Win32EventHandler(WM_MBUTTONDOWN)
def _event_mbuttondown(self, msg, wParam, lParam):
return self._event_mousebutton(
'on_mouse_press', mouse.MIDDLE, lParam)
@Win32EventHandler(WM_MBUTTONUP)
def _event_mbuttonup(self, msg, wParam, lParam):
return self._event_mousebutton(
'on_mouse_release', mouse.MIDDLE, lParam)
@Win32EventHandler(WM_RBUTTONDOWN)
def _event_rbuttondown(self, msg, wParam, lParam):
return self._event_mousebutton(
'on_mouse_press', mouse.RIGHT, lParam)
@Win32EventHandler(WM_RBUTTONUP)
def _event_rbuttonup(self, msg, wParam, lParam):
return self._event_mousebutton(
'on_mouse_release', mouse.RIGHT, lParam)
@Win32EventHandler(WM_MOUSEWHEEL)
def _event_mousewheel(self, msg, wParam, lParam):
delta = c_short(wParam >> 16).value
self.dispatch_event('on_mouse_scroll',
self._mouse_x, self._mouse_y, 0, delta / WHEEL_DELTA)
return 0
@Win32EventHandler(WM_CLOSE)
def _event_close(self, msg, wParam, lParam):
self.dispatch_event('on_close')
return 0
def _immediate_redraw(self):
'''If using EventLoop, redraw and flip the window immediately.
Assumes window has GL context.
'''
from pyglet import app
if app.event_loop is not None:
self.dispatch_event('on_draw')
self.flip()
@Win32EventHandler(WM_PAINT)
def _event_paint(self, msg, wParam, lParam):
self.dispatch_event('on_expose')
self.switch_to()
self._immediate_redraw()
# Validating the window using ValidateRect or ValidateRgn
# doesn't clear the paint message when more than one window
# is open [why?]; defer to DefWindowProc instead.
return None
@Win32EventHandler(WM_SIZING)
def _event_sizing(self, msg, wParam, lParam):
rect = cast(lParam, POINTER(RECT)).contents
width, height = self.get_size()
self.switch_to()
self.dispatch_event('on_resize', width, height)
from pyglet import app
if app.event_loop is not None:
app.event_loop._idle_chance()
return 1
@Win32EventHandler(WM_SIZE)
def _event_size(self, msg, wParam, lParam):
if not self._dc:
# Ignore window creation size event (appears for fullscreen
# only) -- we haven't got DC or HWND yet.
return None
if wParam == SIZE_MINIMIZED:
# Minimized, not resized.
self._hidden = True
self.dispatch_event('on_hide')
return 0
if self._hidden:
# Restored
self._hidden = False
self.dispatch_event('on_show')
w, h = self._get_location(lParam)
self._reset_exclusive_mouse_screen()
self.switch_to()
self.dispatch_event('on_resize', w, h)
self._immediate_redraw()
return 0
@Win32EventHandler(WM_SYSCOMMAND)
def _event_syscommand(self, msg, wParam, lParam):
if wParam & 0xfff0 in (SC_MOVE, SC_SIZE):
# Should be in WM_ENTERSIZEMOVE, but we never get that message.
from pyglet import app
if app.event_loop is not None:
app.event_loop._allow_polling = False
app.event_loop._idle_chance()
return 0
@Win32EventHandler(WM_MOVE)
def _event_move(self, msg, wParam, lParam):
x, y = self._get_location(lParam)
self._reset_exclusive_mouse_screen()
self.dispatch_event('on_move', x, y)
return 0
@Win32EventHandler(WM_EXITSIZEMOVE)
def _event_entersizemove(self, msg, wParam, lParam):
from pyglet import app
if app.event_loop is not None:
app.event_loop._allow_polling = True
return 0
'''
# Alternative to using WM_SETFOCUS and WM_KILLFOCUS. Which
# is better?
@Win32EventHandler(WM_ACTIVATE)
def _event_activate(self, msg, wParam, lParam):
if wParam & 0xffff == WA_INACTIVE:
self.dispatch_event('on_deactivate')
else:
self.dispatch_event('on_activate')
_user32.SetFocus(self._hwnd)
return 0
'''
@Win32EventHandler(WM_SETFOCUS)
def _event_setfocus(self, msg, wParam, lParam):
self.dispatch_event('on_activate')
self._has_focus = True
self.set_exclusive_keyboard(self._exclusive_keyboard)
self.set_exclusive_mouse(self._exclusive_mouse)
return 0
@Win32EventHandler(WM_KILLFOCUS)
def _event_killfocus(self, msg, wParam, lParam):
self.dispatch_event('on_deactivate')
self._has_focus = False
self.set_exclusive_keyboard(self._exclusive_keyboard)
self.set_exclusive_mouse(self._exclusive_mouse)
return 0
@Win32EventHandler(WM_GETMINMAXINFO)
def _event_getminmaxinfo(self, msg, wParam, lParam):
info = MINMAXINFO.from_address(lParam)
if self._minimum_size:
info.ptMinTrackSize.x, info.ptMinTrackSize.y = \
self._client_to_window_size(*self._minimum_size)
if self._maximum_size:
info.ptMaxTrackSize.x, info.ptMaxTrackSize.y = \
self._client_to_window_size(*self._maximum_size)
return 0
@Win32EventHandler(WM_ERASEBKGND)
def _event_erasebkgnd(self, msg, wParam, lParam):
# Prevent flicker during resize.
return 1
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