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()
x, y = self._exclusive_mouse_screen
self.set_mouse_position(x, y, absolute=True)
# Clip to client area, to prevent large mouse movements taking
# it outside the client area.
rect = RECT()
_user32.GetClientRect(self._view_hwnd, byref(rect))
_user32.MapWindowPoints(self._view_hwnd, HWND_DESKTOP, byref(rect),
2)
_user32.ClipCursor(byref(rect))
else:
# Release clip
_user32.ClipCursor(None)
self._exclusive_mouse = exclusive
self._exclusive_mouse_focus = self._has_focus
self.set_mouse_platform_visible()
def set_mouse_position(self, x, y, absolute=False):
if not absolute:
rect = RECT()
_user32.GetClientRect(self._view_hwnd, byref(rect))
_user32.MapWindowPoints(self._view_hwnd, HWND_DESKTOP, byref(rect), 2)
x = x + rect.left
y = rect.top + (rect.bottom - rect.top) - y
_user32.SetCursorPos(x, y)
def _reset_exclusive_mouse_screen(self):
"""Recalculate screen coords of mouse warp point for exclusive
mouse."""
p = POINT()
rect = RECT()
_user32.GetClientRect(self._view_hwnd, byref(rect))
_user32.MapWindowPoints(self._view_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
def _update_clipped_cursor(self):
# Clip to client area, to prevent large mouse movements taking
# it outside the client area.
if self._in_title_bar or self._pending_click:
return
rect = RECT()
_user32.GetClientRect(self._view_hwnd, byref(rect))
_user32.MapWindowPoints(self._view_hwnd, HWND_DESKTOP, byref(rect), 2)
# For some reason borders can be off 1 pixel, allowing cursor into frame/minimize/exit buttons?
rect.top += 1
rect.left += 1
rect.right -= 1
rect.bottom -= 1
_user32.ClipCursor(byref(rect))
def set_exclusive_mouse(self, exclusive=True):
if self._exclusive_mouse == exclusive and \
self._exclusive_mouse_focus == self._has_focus:
return
# Mouse: UsagePage = 1, Usage = 2
raw_mouse = RAWINPUTDEVICE(0x01, 0x02, 0, None)
if exclusive:
raw_mouse.dwFlags = RIDEV_NOLEGACY
raw_mouse.hwndTarget = self._view_hwnd
else:
raw_mouse.dwFlags |= RIDEV_REMOVE
raw_mouse.hwndTarget = None
if not _user32.RegisterRawInputDevices(byref(raw_mouse), 1,
sizeof(RAWINPUTDEVICE)):
if exclusive:
raise WindowException("Cannot enter mouse exclusive mode.")
self._exclusive_mouse_buttons = 0
if exclusive and self._has_focus:
# Move mouse to the center of the window.
self._reset_exclusive_mouse_screen()
x, y = self._exclusive_mouse_screen
self.set_mouse_position(x, y, absolute=True)
# Clip to client area, to prevent large mouse movements taking
# it outside the client area.
rect = RECT()
_user32.GetClientRect(self._view_hwnd, byref(rect))
_user32.MapWindowPoints(self._view_hwnd, HWND_DESKTOP, byref(rect),
2)
_user32.ClipCursor(byref(rect))
else:
# Release clip
_user32.ClipCursor(None)
# Move mouse bak to the middle of the client area.
if self._exclusive_mouse_screen:
x, y = self._exclusive_mouse_screen
self.set_mouse_position(x, y, absolute=True)
self._exclusive_mouse = exclusive
self._exclusive_mouse_focus = self._has_focus
self.set_mouse_platform_visible(not exclusive)
def set_exclusive_mouse(self, exclusive=True):
if self._mouse_exclusive == exclusive and \
self._exclusive_mouse_focus == self._has_focus:
return
# Mouse: UsagePage = 1, Usage = 2
raw_mouse = RAWINPUTDEVICE(0x01, 0x02, 0, None)
if exclusive:
raw_mouse.dwFlags = RIDEV_NOLEGACY
raw_mouse.hwndTarget = self._view_hwnd
else:
raw_mouse.dwFlags = RIDEV_REMOVE
raw_mouse.hwndTarget = None
if not _user32.RegisterRawInputDevices(byref(raw_mouse), 1,
sizeof(RAWINPUTDEVICE)):
if exclusive:
raise WindowException("Cannot enter mouse exclusive mode.")
self._exclusive_mouse_buttons = 0
if exclusive and self._has_focus:
# Clip to client area, to prevent large mouse movements taking
# it outside the client area.
rect = RECT()
_user32.GetClientRect(self._view_hwnd, byref(rect))
_user32.MapWindowPoints(self._view_hwnd, HWND_DESKTOP, byref(rect),
2)
_user32.ClipCursor(byref(rect))
# Release mouse capture in case is was acquired during mouse click
_user32.ReleaseCapture()
else:
# Release clip
_user32.ClipCursor(None)
super().set_exclusive_mouse(exclusive)
self._exclusive_mouse_focus = self._has_focus
self.set_mouse_platform_visible(not exclusive)