def handle_scroll(self, window, x_offset, y_offset):
# require model
if not self.model:
return
# get current window size
width, height = glfw.get_framebuffer_size(window)
# scroll
self.gui_lock.acquire()
mjlib.mjv_moveCamera(C.MOUSE_ZOOM, 0, (-20 * y_offset),
byref(self.cam), width, height)
self.gui_lock.release()
def handle_scroll(self, window, x_offset, y_offset):
# require model
if not self.model:
return
# get current window size
width, height = glfw.get_framebuffer_size(window)
# scroll
self.gui_lock.acquire()
mjlib.mjv_moveCamera(C.MOUSE_ZOOM, 0, (-20 * y_offset),
byref(self.cam), width, height)
self.gui_lock.release()
def handle_mouse_move(self, window, xpos, ypos):
# no buttons down: nothing to do
if not self.button_left_pressed \
and not self.button_middle_pressed \
and not self.button_right_pressed:
return
# compute mouse displacement, save
dx = int(self.scale * xpos) - self.last_mouse_x
dy = int(self.scale * ypos) - self.last_mouse_y
self.last_mouse_x = int(self.scale * xpos)
self.last_mouse_y = int(self.scale * ypos)
# require model
if not self.model:
return
# get current window size
width, height = glfw.get_framebuffer_size(self.window)
# get shift key state
mod_shift = glfw.get_key(window, glfw.KEY_LEFT_SHIFT) == glfw.PRESS \
or glfw.get_key(window, glfw.KEY_RIGHT_SHIFT) == glfw.PRESS
# determine action based on mouse button
action = None
if self.button_right_pressed:
action = C.MOUSE_MOVE_H if mod_shift else C.MOUSE_MOVE_V
elif self.button_left_pressed:
action = C.MOUSE_ROTATE_H if mod_shift else C.MOUSE_ROTATE_V
else:
action = C.MOUSE_ZOOM
self.gui_lock.acquire()
mjlib.mjv_moveCamera(action, dx, dy, byref(self.cam), width, height)
self.gui_lock.release()
def handle_mouse_move(self, window, xpos, ypos):
# no buttons down: nothing to do
if not self.button_left_pressed \
and not self.button_middle_pressed \
and not self.button_right_pressed:
return
# compute mouse displacement, save
dx = int(self.scale * xpos) - self.last_mouse_x
dy = int(self.scale * ypos) - self.last_mouse_y
self.last_mouse_x = int(self.scale * xpos)
self.last_mouse_y = int(self.scale * ypos)
# require model
if not self.model:
return
# get current window size
width, height = glfw.get_framebuffer_size(self.window)
# get shift key state
mod_shift = glfw.get_key(window, glfw.KEY_LEFT_SHIFT) == glfw.PRESS \
or glfw.get_key(window, glfw.KEY_RIGHT_SHIFT) == glfw.PRESS
# determine action based on mouse button
action = None
if self.button_right_pressed:
action = C.MOUSE_MOVE_H if mod_shift else C.MOUSE_MOVE_V
elif self.button_left_pressed:
action = C.MOUSE_ROTATE_H if mod_shift else C.MOUSE_ROTATE_V
else:
action = C.MOUSE_ZOOM
self.gui_lock.acquire()
mjlib.mjv_moveCamera(action, dx, dy, byref(self.cam), width, height)
self.gui_lock.release()