def _create_window(self):
canvas = Canvas(bgcolor="lightsteelblue", draw_axes=True)
canvas.overlays.append(EventTracer(canvas, color="green", size=8,
angle=45.0))
viewport = Viewport(component=canvas, enable_zoom=True)
viewport.view_position = [0,0]
viewport.tools.append(ViewportPanTool(viewport, drag_button="right"))
viewport.overlays.append(EventTracer(viewport))
if 1:
scrolled = Scrolled(canvas, inside_padding_width = 0,
mousewheel_scroll = False,
viewport_component = viewport,
always_show_sb = True,
continuous_drag_update = True)
return Window(self, -1, component=scrolled)
elif 1:
viewport.bounds = [300, 300]
viewport.position = [10,10]
container = Container(fit_window=True, auto_size=False,
border_visible=True,
border_color = "blue")
container.padding = 20
container.add(viewport)
return Window(self, -1, component=container)
else:
return Window(self, -1, component=viewport)
def test_adjust_bounds_vanchor_center_stay_inside(self):
container = Container(bounds=[100.0, 100.0])
component = Component(bounds=[50.0, 50.0], position=[5.0, 5.0])
container.add(component)
view = Viewport(
component=container,
view_bounds=[50.0, 50.0],
view_position=[20, 20],
position=[0, 0],
bounds=[50, 50],
vertical_anchor="center",
stay_inside=True,
)
# simple resize
view.bounds = [60, 60]
self.assertEqual(view.view_position, [20, 15.0])
# resize beyond left
view.bounds = [95, 95]
self.assertEqual(view.view_position, [5, 0.0])
# resize bigger than view
view.bounds = [120, 120]
self.assertEqual(view.view_position, [0, -10.0])
def test_adjust_bounds_hanchor_top_stay_inside(self):
container = Container(bounds=[100.0, 100.0])
component = Component(bounds=[50.0, 50.0], position=[5.0, 5.0])
container.add(component)
view = Viewport(
component=container,
view_bounds=[50.0, 50.0],
view_position=[20, 20],
position=[0, 0],
bounds=[50, 50],
horizontal_anchor="right",
stay_inside=True,
)
# simple resize
view.bounds = [60, 60]
self.assertEqual(view.view_position, [10, 20.0])
# resize beyond left
view.bounds = [80, 80]
self.assertEqual(view.view_position, [0, 20.0])
# resize bigger than view
view.bounds = [120, 120]
self.assertEqual(view.view_position, [-20.0, 0])
def __container_default(self):
""" default setter for _container
"""
viewport = Viewport(component=self._canvas, enable_zoom=True)
viewport.view_position = [0, 0]
viewport.tools.append(ViewportPanTool(viewport))
return Scrolled(self._canvas, viewport_component=viewport)
def _viewport_default(self):
""" Trait initialiser.
"""
vp = Viewport(component=self.canvas)
vp.enable_zoom=False
vp.view_position = [-5, -5]
return vp
def __container_default(self):
""" default setter for _container
"""
viewport = Viewport(component=self._canvas, enable_zoom=True)
viewport.view_position = [0, 0]
viewport.tools.append(ViewportPanTool(viewport))
return Scrolled(self._canvas, viewport_component=viewport)
def create_component(self):
canvas = Canvas(bgcolor="lightsteelblue", draw_axes=True)
from basic_move import Box
box = Box(color="red", bounds=[50, 50], resizable="")
box.position = [75, 75]
canvas.add(box)
viewport = Viewport(component=canvas)
viewport.view_position = [0, 0]
viewport.tools.append(ViewportPanTool(viewport))
return viewport
def test_adjust_bounds(self):
container = Container(bounds=[100.0, 100.0])
component = Component(bounds=[50.0, 50.0], position=[5.0, 5.0])
container.add(component)
view = Viewport(component=container,
view_bounds=[50.0, 50.0],
view_position=[10, 10],
position=[0, 0],
bounds=[50, 50])
# simple resize
view.bounds = [60, 60]
self.assertEqual(view.view_position, [10, 10])
def test_adjust_bounds(self):
container = Container(bounds=[100.0, 100.0])
component = Component(bounds=[50.0, 50.0], position=[5.0, 5.0])
container.add(component)
view = Viewport(component=container,
view_bounds=[50.0, 50.0],
view_position=[10,10],
position=[0,0],
bounds=[50,50])
# simple resize
view.bounds = [60, 60]
self.assertEqual(view.view_position, [10, 10])
def _create_window(self):
canvas = Canvas(bgcolor="lightsteelblue", draw_axes=True)
from basic_move import Box
box = Box(color="red", bounds=[50,50], resizable="")
box.position= [75,75]
canvas.add(box)
viewport = Viewport(component=canvas)
viewport.view_position = [0,0]
viewport.tools.append(ViewportPanTool(viewport))
return Window(self, -1, component=viewport)
def test_adjust_container_bounds_vanchor_top(self):
container = Container(bounds=[100.0, 100.0])
component = Component(bounds=[50.0, 50.0], position=[5.0, 5.0])
container.add(component)
view = Viewport(
component=container,
view_bounds=[50.0, 50.0],
view_position=[20, 20],
position=[0, 0],
bounds=[50, 50],
vertical_anchor="top",
)
# simple resize bigger
container.bounds = [120, 120]
self.assertEqual(view.view_position, [20, 40.0])
# simple resize smaller
container.height = 90
container.width = 90
self.assertEqual(view.view_position, [20, 10.0])
# simple resize much smaller
container.bounds[0] = 40
container.bounds[1] = 40
self.assertEqual(view.view_position, [20, -40.0])
def test_adjust_container_bounds_hanchor_right_stay_inside(self):
container = Container(bounds=[100.0, 100.0])
component = Component(bounds=[50.0, 50.0], position=[5.0, 5.0])
container.add(component)
view = Viewport(component=container,
view_bounds=[50.0, 50.0],
view_position=[20, 20],
position=[0, 0],
bounds=[50, 50],
horizontal_anchor='right',
stay_inside=True)
# simple resize bigger
container.bounds = [120, 120]
self.assertEqual(view.view_position, [40, 20])
# simple resize smaller
container.height = 90
container.width = 90
self.assertEqual(view.view_position, [10, 20])
# simple resize much smaller
container.bounds[0] = 40
container.bounds[1] = 40
self.assertEqual(view.view_position, [-10, 0])
def _comp_default(self):
canvas = Canvas(draw_axes=True, bgcolor="gray")
self.triangle = SierpinskiTriangle(
position=[0.0, 0.0],
bounds=[self.base_width, self.base_width * (SQRT3 / 2)],
iterations=self.iterations,
max_iters=self.max_iters,
base_width=self.base_width,
bgcolor="gray")
canvas.add(self.triangle)
self.viewport = Viewport(component=canvas,
enable_zoom=True,
stay_inside=True)
self.viewport.zoom_tool.min_zoom = 1.0
self.viewport.tools.append(
ViewportPanTool(self.viewport, drag_button="right"))
scrolled = Scrolled(
canvas,
inside_padding_width=0,
mousewheel_scroll=False,
viewport_component=self.viewport,
always_show_sb=True,
continuous_drag_update=True,
)
return scrolled
def _create_component(self):
canvas = DropCanvas(bgcolor="lightsteelblue", draw_axes=True)
canvas.overlays.append(EventTracer(canvas, color="green", size=8,
angle=45.0))
viewport = Viewport(component=canvas, enable_zoom=True)
viewport.view_position = [0, 0]
viewport.tools.append(ViewportPanTool(viewport, drag_button="right"))
viewport.overlays.append(EventTracer(viewport))
scrolled = Scrolled(canvas, inside_padding_width=0,
mousewheel_scroll=False,
viewport_component=viewport,
always_show_sb=True,
continuous_drag_update=True)
return scrolled
def _create_window(self):
canvas = Canvas(bgcolor="lightsteelblue", draw_axes=True)
canvas.overlays.append(EventTracer(canvas, color="green", size=8,
angle=45.0))
viewport = Viewport(component=canvas, enable_zoom=True)
viewport.view_position = [0,0]
viewport.tools.append(ViewportPanTool(viewport, drag_button="right"))
viewport.overlays.append(EventTracer(viewport))
scrolled = Scrolled(canvas, inside_padding_width = 0,
mousewheel_scroll = False,
viewport_component = viewport,
always_show_sb = True,
continuous_drag_update = True)
return Window(self, -1, component=scrolled)
def test_adjust_bounds_hanchor_center_stay_inside(self):
container = Container(bounds=[100.0, 100.0])
component = Component(bounds=[50.0, 50.0], position=[5.0, 5.0])
container.add(component)
view = Viewport(component=container,
view_bounds=[50.0, 50.0],
view_position=[20, 20],
position=[0, 0],
bounds=[50, 50],
horizontal_anchor='center',
stay_inside=True)
# simple resize
view.bounds = [60, 60]
self.assertEqual(view.view_position, [15.0, 20])
# resize beyond left
view.height = 95
view.width = 95
self.assertEqual(view.view_position, [0.0, 5])
# resize bigger than view
view.bounds[0] = 120
view.bounds[1] = 120
self.assertEqual(view.view_position, [-10.0, 0])
def test_initial_position(self):
container = Container(bounds=[100.0, 100.0])
component = Component(bounds=[50.0, 50.0], position=[5.0, 5.0])
container.add(component)
view = Viewport(component=container,
view_bounds=[50.0, 50.0],
position=[0, 0],
bounds=[50, 50])
self.assertEqual(view.view_position, [0, 0])
def test_initial_position_hanchor_center(self):
container = Container(bounds=[100.0, 100.0])
component = Component(bounds=[50.0, 50.0], position=[5.0, 5.0])
container.add(component)
view = Viewport(component=container,
horizontal_anchor='center',
view_bounds=[50.0, 50.0],
position=[0, 0],
bounds=[50, 50])
self.assertEqual(view.view_position, [25, 0])
def test_basic_viewport(self):
container = Container(bounds=[100.0, 100.0])
component = Component(bounds=[50.0, 50.0], position=[5.0, 5.0])
container.add(component)
view = Viewport(component=container,
view_position=[10.0, 10.0],
view_bounds=[50.0, 50.0],
position=[0,0],
bounds=[50,50])
self.assertEqual(view.view_position, [10, 10])
print view.components_at(0.0, 0.0), view.view_position
self.assert_(view.components_at(0.0, 0.0)[0] == component)
self.assert_(view.components_at(44.9, 0.0)[0] == component)
self.assert_(view.components_at(0.0, 44.9)[0] == component)
self.assert_(view.components_at(44.9, 44.9)[0] == component)
self.assert_(view.components_at(46.0, 45.0) == [])
self.assert_(view.components_at(46.0, 0.0) == [])
self.assert_(view.components_at(45.0, 46.0) == [])
self.assert_(view.components_at(0.0, 46.0) == [])
def test_initial_position_vanchor_center(self):
container = Container(bounds=[100.0, 100.0])
component = Component(bounds=[50.0, 50.0], position=[5.0, 5.0])
container.add(component)
view = Viewport(
component=container,
vertical_anchor="center",
view_bounds=[50.0, 50.0],
position=[0, 0],
bounds=[50, 50],
)
self.assertEqual(view.view_position, [0, 25])
def test_basic_viewport(self):
container = Container(bounds=[100.0, 100.0])
component = Component(bounds=[50.0, 50.0], position=[5.0, 5.0])
container.add(component)
view = Viewport(component=container,
view_position=[10.0, 10.0],
view_bounds=[50.0, 50.0],
position=[0, 0],
bounds=[50, 50])
self.assertEqual(view.view_position, [10, 10])
print(view.components_at(0.0, 0.0), view.view_position)
self.assertTrue(view.components_at(0.0, 0.0)[0] == component)
self.assertTrue(view.components_at(44.9, 0.0)[0] == component)
self.assertTrue(view.components_at(0.0, 44.9)[0] == component)
self.assertTrue(view.components_at(44.9, 44.9)[0] == component)
self.assertTrue(view.components_at(46.0, 45.0) == [])
self.assertTrue(view.components_at(46.0, 0.0) == [])
self.assertTrue(view.components_at(45.0, 46.0) == [])
self.assertTrue(view.components_at(0.0, 46.0) == [])
def _create_window(self):
canvas = Canvas(bgcolor="lightsteelblue", draw_axes=True)
boxgridsize = 8
boxsize = 50
spacing = boxsize * 2
offset = spacing / 2
origin_color = array([0.0, 0.0, 1.0])
x_color = array([0.0, 1.0, 0.0])
y_color = array([1.0, 0.0, 0.0])
for i in range(boxgridsize):
for j in range(boxgridsize):
color = tuple(x_color / (boxgridsize - 1) * i + y_color / (boxgridsize - 1) * j + origin_color) + (1.0,)
box = Box(color=color, bounds=[boxsize, boxsize], resizable="")
box.position = [i * spacing + offset - boxsize / 2 + 0.5, j * spacing + offset - boxsize / 2 + 0.5]
canvas.add(box)
viewport = Viewport(component=canvas, enable_zoom=True)
viewport.view_position = [0, 0]
viewport.tools.append(ViewportPanTool(viewport))
# Uncomment the following to enforce limits on the zoom
# viewport.min_zoom = 0.1
# viewport.max_zoom = 3.0
scrolled = Scrolled(
canvas,
fit_window=True,
inside_padding_width=0,
mousewheel_scroll=False,
viewport_component=viewport,
always_show_sb=True,
continuous_drag_update=True,
)
return Window(self, -1, component=scrolled)
def test_adjust_bounds_hanchor_center_stay_inside(self):
container = Container(bounds=[100.0, 100.0])
component = Component(bounds=[50.0, 50.0], position=[5.0, 5.0])
container.add(component)
view = Viewport(component=container,
view_bounds=[50.0, 50.0],
view_position=[20, 20],
position=[0,0],
bounds=[50,50],
horizontal_anchor='center',
stay_inside=True)
# simple resize
view.bounds = [60, 60]
self.assertEqual(view.view_position, [15.0, 20])
# resize beyond left
view.height = 95
view.width = 95
self.assertEqual(view.view_position, [0.0, 5])
# resize bigger than view
view.bounds[0] = 120
view.bounds[1] = 120
self.assertEqual(view.view_position, [-10.0, 0])
def test_adjust_bounds_vanchor_top(self):
container = Container(bounds=[100.0, 100.0])
component = Component(bounds=[50.0, 50.0], position=[5.0, 5.0])
container.add(component)
view = Viewport(component=container,
view_bounds=[50.0, 50.0],
view_position=[20, 20],
position=[0,0],
bounds=[50,50],
vertical_anchor='top')
# simple resize
view.bounds = [60, 60]
self.assertEqual(view.view_position, [20, 10.0])
# resize beyond bottom
view.bounds = [80, 80]
self.assertEqual(view.view_position, [20, -10.0])
# resize bigger than view
view.bounds = [120, 120]
self.assertEqual(view.view_position, [20, -50.0])
def _create_window(self):
self.canvas = Canvas(bgcolor='lightgrey',
draw_axes=True,
fit_window = True)
sys,cat = load_system("datsun truck.repo")
# sys,cat = load_system()
# find_technologies(sys)
self.make_components(sys)
viewport = Viewport(component=self.canvas,enable_zoom=True)
max_x = 0
max_y = 0
for art in sys.artifacts:
try:
if art.drawable.x2 > max_x:
max_x = art.drawable.x2
if art.drawable.y2 > max_y:
max_y = art.drawable.y2
except AttributeError:
pass
# max_x = max([art.drawable.x2 for art in sys.artifacts])
# max_y = max([art.drawable.y2 for art in sys.artifacts])
viewport.view_position = [max_x/2,max_y/2]
viewport.view_bounds = self.canvas.bounds
viewport.zoom = 0.3
viewport.zoom_tool.wheel_zoom_step = 1
viewport.tools.append(ViewportPanTool(viewport))
self.viewport = viewport
self.fit_window()
return Window(self, -1, component=viewport)
def test_adjust_bounds_hanchor_center(self):
container = Container(bounds=[100.0, 100.0])
component = Component(bounds=[50.0, 50.0], position=[5.0, 5.0])
container.add(component)
view = Viewport(component=container,
view_bounds=[50.0, 50.0],
view_position=[20, 20],
position=[0,0],
bounds=[50,50],
horizontal_anchor='center')
# simple resize
view.bounds = [60, 60]
self.assertEqual(view.view_position, [15.0, 20])
# resize beyond left
view.bounds = [95, 95]
self.assertEqual(view.view_position, [-2.5, 20])
# resize bigger than view
view.bounds = [120, 120]
self.assertEqual(view.view_position, [-15.0, 20])
def test_adjust_bounds_vanchor_top(self):
container = Container(bounds=[100.0, 100.0])
component = Component(bounds=[50.0, 50.0], position=[5.0, 5.0])
container.add(component)
view = Viewport(component=container,
view_bounds=[50.0, 50.0],
view_position=[20, 20],
position=[0, 0],
bounds=[50, 50],
vertical_anchor='top')
# simple resize
view.bounds = [60, 60]
self.assertEqual(view.view_position, [20, 10.0])
# resize beyond bottom
view.bounds = [80, 80]
self.assertEqual(view.view_position, [20, -10.0])
# resize bigger than view
view.bounds = [120, 120]
self.assertEqual(view.view_position, [20, -50.0])
def test_adjust_bounds_hanchor_center(self):
container = Container(bounds=[100.0, 100.0])
component = Component(bounds=[50.0, 50.0], position=[5.0, 5.0])
container.add(component)
view = Viewport(component=container,
view_bounds=[50.0, 50.0],
view_position=[20, 20],
position=[0, 0],
bounds=[50, 50],
horizontal_anchor='center')
# simple resize
view.bounds = [60, 60]
self.assertEqual(view.view_position, [15.0, 20])
# resize beyond left
view.bounds = [95, 95]
self.assertEqual(view.view_position, [-2.5, 20])
# resize bigger than view
view.bounds = [120, 120]
self.assertEqual(view.view_position, [-15.0, 20])
def test_adjust_bounds_vanchor_center_stay_inside(self):
container = Container(bounds=[100.0, 100.0])
component = Component(bounds=[50.0, 50.0], position=[5.0, 5.0])
container.add(component)
view = Viewport(component=container,
view_bounds=[50.0, 50.0],
view_position=[20, 20],
position=[0,0],
bounds=[50,50],
vertical_anchor='center',
stay_inside=True)
# simple resize
view.bounds = [60, 60]
self.assertEqual(view.view_position, [20, 15.0])
# resize beyond left
view.bounds = [95, 95]
self.assertEqual(view.view_position, [5, 0.0])
# resize bigger than view
view.bounds = [120, 120]
self.assertEqual(view.view_position, [0, -10.0])
def test_adjust_bounds_hanchor_top_stay_inside(self):
container = Container(bounds=[100.0, 100.0])
component = Component(bounds=[50.0, 50.0], position=[5.0, 5.0])
container.add(component)
view = Viewport(component=container,
view_bounds=[50.0, 50.0],
view_position=[20, 20],
position=[0,0],
bounds=[50,50],
horizontal_anchor='right',
stay_inside=True)
# simple resize
view.bounds = [60, 60]
self.assertEqual(view.view_position, [10, 20.0])
# resize beyond left
view.bounds = [80, 80]
self.assertEqual(view.view_position, [0, 20.0])
# resize bigger than view
view.bounds = [120, 120]
self.assertEqual(view.view_position, [-20.0, 0])
def _create_viewport(self):
# Create a container and add our plots
canvas = PlotCanvas()
canvas.range_controller = RangeController(cavas = canvas)
toolbar = make_toolbar(canvas)
toolbar.component = canvas
canvas.overlays.append(toolbar)
viewport = Viewport(component=canvas)
if MULTITOUCH:
viewport.tools.append(MPViewportPanTool(viewport))
else:
viewport.tools.append(ViewportPanTool(viewport, drag_button="right"))
return viewport
def _create_component(self):
canvas = Canvas(bgcolor="lightsteelblue", draw_axes=True)
boxgridsize = 8
boxsize = 50
spacing = boxsize * 2
offset = spacing / 2
origin_color = array([0.0, 0.0, 1.0])
x_color = array([0.0, 1.0, 0.0])
y_color = array([1.0, 0.0, 0.0])
for i in range(boxgridsize):
for j in range(boxgridsize):
color = tuple(x_color / (boxgridsize - 1) * i + y_color /
(boxgridsize - 1) * j + origin_color) + (1.0, )
box = Box(color=color, bounds=[boxsize, boxsize], resizable="")
box.position = [
i * spacing + offset - boxsize / 2 + 0.5,
j * spacing + offset - boxsize / 2 + 0.5,
]
canvas.add(box)
viewport = Viewport(
component=canvas,
enable_zoom=True,
vertical_anchor="center",
horizontal_anchor="center",
)
# viewport.view_position = [0,0]
viewport.tools.append(ViewportPanTool(viewport))
# Uncomment the following to enforce limits on the zoom
# viewport.min_zoom = 0.1
# viewport.max_zoom = 3.0
scrolled = Scrolled(
canvas,
fit_window=True,
inside_padding_width=0,
mousewheel_scroll=False,
viewport_component=viewport,
always_show_sb=True,
continuous_drag_update=True,
)
return scrolled
def test_mouse_capture(self):
""" Tests saving the event's net_transform as well as the dispatch
history when capturing a mouse and dispatching subsequent events.
"""
class MouseCapturingComponent(TestComponent):
captured_event_pos = Tuple
def normal_left_down(self, event):
self.captured_event_pos = (event.x, event.y)
event.window.set_mouse_owner(self, event.net_transform())
comp = MouseCapturingComponent(position=[20, 20])
container = TestContainer(bounds=[100, 100], position=[50, 50])
container.add(comp)
viewport = Viewport(
component=container,
bounds=[400, 400],
position=[30, 30],
fit_window=False,
resizable="")
window = DummyWindow(_size=(500, 500))
window.component = viewport
# Create the first event (to trigger the mouse capture)
event = BasicEvent(x=105, y=105, window=window)
window._handle_mouse_event("left_down", event)
self.assertTrue(window.mouse_owner == comp)
# Create the second event
event = BasicEvent(x=107, y=107, window=window)
old_pos = comp.captured_event_pos
window._handle_mouse_event("left_down", event)
new_pos = comp.captured_event_pos
self.assertTrue(new_pos[0] == old_pos[0] + 2)
self.assertTrue(new_pos[1] == old_pos[1] + 2)
return
def test_viewport_container(self):
""" Tests event handling of viewports (scaling and translation) """
comp = TestComponent(position=[20, 20])
container = TestContainer(bounds=[100, 100], position=[50, 50])
container.add(comp)
viewport = Viewport(
component=container, bounds=[400, 400], position=[30, 30]
)
# Test unscaled event
event = BasicEvent(x=105, y=105)
viewport.dispatch(event, "left_down")
self.assertTrue(container.last_event.x == 75)
self.assertTrue(container.last_event.y == 75)
self.assertTrue(comp.last_event.x == 25)
self.assertTrue(comp.last_event.y == 25)
# Translate the viewport's view_position
container.last_event = None
comp.last_event = None
viewport.view_position = [-10, -10]
event = BasicEvent(x=115, y=115)
viewport.dispatch(event, "left_down")
self.assertTrue(container.last_event.x == 75)
self.assertTrue(container.last_event.y == 75)
self.assertTrue(comp.last_event.x == 25)
self.assertTrue(comp.last_event.y == 25)
# Do a zoom
container.last_event = None
comp.last_event = None
# Zoom in by a factor of 2, so view an area that is 200x200.
viewport.zoom = 2.0
viewport.enable_zoom = True
viewport.view_position = [-50, -50]
viewport.view_bounds = [200, 200]
event = BasicEvent(x=280, y=280)
viewport.dispatch(event, "left_down")
self.assertTrue(container.last_event.x == 75)
self.assertTrue(container.last_event.y == 75)
self.assertTrue(comp.last_event.x == 25)
self.assertTrue(comp.last_event.y == 25)
def _component_changed(self, old, new):
""" When the component changes, make sure our graph_updated function
is synced with its controller's graph_updated event.
"""
self.bgcolor = new.bgcolor
Viewport._component_changed(self, old, new)
def _component_changed(self, old, new):
""" When the component changes, make sure our graph_updated function
is synced with its controller's graph_updated event.
"""
self.bgcolor = new.bgcolor
Viewport._component_changed(self, old, new)
def test_viewport_container(self):
""" Tests event handling of viewports (scaling and translation) """
comp = TestComponent(position=[20,20])
container = TestContainer(bounds=[100,100], position=[50,50])
container.add(comp)
viewport = Viewport(component=container, bounds=[400,400],
position=[30,30])
# Test unscaled event
event = BasicEvent(x=105, y=105)
viewport.dispatch(event, "left_down")
self.assertTrue(container.last_event.x == 75)
self.assertTrue(container.last_event.y == 75)
self.assertTrue(comp.last_event.x == 25)
self.assertTrue(comp.last_event.y == 25)
# Translate the viewport's view_position
container.last_event = None
comp.last_event = None
viewport.view_position = [-10,-10]
event = BasicEvent(x=115, y=115)
viewport.dispatch(event, "left_down")
self.assertTrue(container.last_event.x == 75)
self.assertTrue(container.last_event.y == 75)
self.assertTrue(comp.last_event.x == 25)
self.assertTrue(comp.last_event.y == 25)
# Do a zoom
container.last_event = None
comp.last_event = None
# Zoom in by a factor of 2, so view an area that is 200x200.
viewport.zoom = 2.0
viewport.enable_zoom = True
viewport.view_position = [-50, -50]
viewport.view_bounds = [200, 200]
event = BasicEvent(x=280, y=280)
viewport.dispatch(event, "left_down")
self.assertTrue(container.last_event.x == 75)
self.assertTrue(container.last_event.y == 75)
self.assertTrue(comp.last_event.x == 25)
self.assertTrue(comp.last_event.y == 25)
return