def _update_modifier_keys(self):
"""Updates alt, ctrl, and shift states.
"""
modifiers = glutGetModifiers()
self._is_alt_down = (modifiers & GLUT_ACTIVE_ALT != 0)
self._is_ctrl_down = (modifiers & GLUT_ACTIVE_CTRL != 0)
self._is_shift_down = (modifiers & GLUT_ACTIVE_SHIFT != 0)
def _glut_update_modifiers(self):
self._modifiers = []
mods = glutGetModifiers()
if mods & GLUT_ACTIVE_SHIFT:
self._modifiers.append('shift')
if mods & GLUT_ACTIVE_ALT:
self._modifiers.append('alt')
if mods & GLUT_ACTIVE_CTRL:
self._modifiers.append('ctrl')
def _glut_update_modifiers(self):
self._modifiers = []
mods = glutGetModifiers()
if mods & GLUT_ACTIVE_SHIFT:
self._modifiers.append('shift')
if mods & GLUT_ACTIVE_ALT:
self._modifiers.append('alt')
if mods & GLUT_ACTIVE_CTRL:
self._modifiers.append('ctrl')
def mouse_press(self, *args):
"""
Called when a mouse button is pressed or released. The args parameter
is a tuple with 4 elements,
(button, pressed, x, y)
The first element indicates which button is pressed, the second is a 0
(released) or 1 (pressed), and final two are the position of the mouse
in window co-ordinates.
"""
button, up, x, y = args
if button == 0:
if up:
self._last_mouse_press = None
self._last_orientation = None
else:
self._last_mouse_press = (x, y, glutGetModifiers())
self._last_orientation = self.renderer.camera.orientation