multitouch/tests/vtk_interactor.py

import vtk
from threading import Thread
from math import degrees

from src import FullscreenArea, create_driver


class vtkMultitouchInteractor():
    def __init__(self):
        self.iren = vtk.vtkRenderWindowInteractor()

        screen = FullscreenArea()
        self.driver = create_driver(screen)

        screen.on_rotate(self.on_rotate)
        screen.on_pinch(self.on_pinch)
        screen.on_tap(self.on_tap)

    def SetRenderWindow(self, window):
        self.iren.SetRenderWindow(window)
        self.window = window

    def Initialize(self):
        self.iren.Initialize()
        self.renderer.ResetCamera()

    def Start(self):
        #t = Thread(target=self.iren.Start)
        #t.daemon = True
        #t.start()
        #self.driver.start()

        thread = Thread(target=self.driver.start)
        thread.daemon = True
        thread.start()
        #self.iren.Start()

        try:
            import time

            while True:
                self.window.Render()
                time.sleep(1. / 60)
        except KeyboardInterrupt:
            return

    def SetRenderer(self, renderer):
        self.renderer = renderer
        self.camera = renderer.GetActiveCamera()

    def on_rotate(self, gesture):
        print 'rotate', gesture
        self.camera.Roll(degrees(gesture.get_angle()))

    def on_pinch(self, gesture):
        pass

    def on_tap(self, gesture):
        print 'tap:', gesture


if __name__ == '__main__':
    from tests.objreader import read_obj

    # Create render window and interactor
    ren = vtk.vtkRenderer()
    win = vtk.vtkRenderWindow()
    win.AddRenderer(ren)
    mt = vtkMultitouchInteractor()

    mt.SetRenderWindow(win)

    # Read OBJ file
    cubemapper = read_obj('tests/cube.obj')

    # Create actor
    cubeactor = vtk.vtkActor()
    cubeactor.SetMapper(cubemapper)
    ren.AddActor(cubeactor)

    mt.SetRenderer(ren)
    mt.Initialize()
    win.Render()
    mt.Start()