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Viewing changes to examples/demo/canvas/cliptest.py

  • Committer: Package Import Robot
  • Author(s): Andrew Starr-Bochicchio
  • Date: 2014-06-01 17:04:08 UTC
  • mfrom: (7.2.5 sid)
  • Revision ID: package-import@ubuntu.com-20140601170408-m86xvdjd83a4qon0
Tags: 4.4.1-1ubuntu1
* Merge from Debian unstable. Remaining Ubuntu changes:
 - Let the binary-predeb target work on the usr/lib/python* directory
   as we don't have usr/share/pyshared anymore.

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examples/demo/canvas/cliptest.py
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#!/usr/bin/env python
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"""
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The main app for the PlotCanvas application
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"""
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# Enthought library imports
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from traits.api import Float
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from enable.api import Window, Container, Component, Pointer
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from enable.tools.api import MoveTool
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from enable.example_support import DemoFrame, demo_main
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class Box(Component):
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    """
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    The box moves wherever the user clicks and drags.
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    """
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    normal_pointer = Pointer("arrow")
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    moving_pointer = Pointer("hand")
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    offset_x = Float
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    offset_y = Float
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    fill_color = (0.8, 0.0, 0.1, 1.0)
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    moving_color = (0.0, 0.8, 0.1, 1.0)
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    resizable = ""
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    def __init__(self, *args, **kw):
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        Component.__init__(self, *args, **kw)
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    def _draw_mainlayer(self, gc, view_bounds=None, mode="default"):
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        with gc:
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            gc.set_fill_color(self.fill_color)
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            dx, dy = self.bounds
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            x, y = self.position
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            gc.clip_to_rect(x, y, dx, dy)
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            gc.rect(x, y, dx, dy)
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            gc.fill_path()
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            ## draw line around outer box
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            #gc.set_stroke_color((0,0,0,1))
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            #gc.rect(self.outer_x, self.outer_y, self.outer_width, self.outer_height)
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            #gc.stroke_path()
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        return
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    def normal_left_down(self, event):
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        self.event_state = "moving"
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        event.window.set_pointer(self.moving_pointer)
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        event.window.set_mouse_owner(self, event.net_transform())
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        self.offset_x = event.x - self.x
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        self.offset_y = event.y - self.y
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        event.handled = True
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        return
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    def moving_mouse_move(self, event):
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        self.position = [event.x-self.offset_x, event.y-self.offset_y]
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        event.handled = True
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        self.request_redraw()
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        return
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    def moving_left_up(self, event):
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        self.event_state = "normal"
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        event.window.set_pointer(self.normal_pointer)
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        event.window.set_mouse_owner(None)
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        event.handled = True
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        self.request_redraw()
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        return
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    def moving_mouse_leave(self, event):
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        self.moving_left_up(event)
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        event.handled = True
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        return
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class MainFrame(DemoFrame):
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    def _create_window(self):
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        a = Box(bounds=[75, 75], position=[50,50], fill_color=(1, 0, 0, 1))
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        b = Box(bounds=[75, 75], position=[200,50], fill_color=(0, 1, 0, 1))
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        c = Box(bounds=[75, 75], position=[50,200], fill_color=(0, 0, 1, 1))
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        cont = Container(a, b, c, bounds=[400,400], border_visible=True, bgcolor="lightgray")
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        #cont.unified_draw = True
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        #cont.draw_layer = "background"
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        cont2 = Container(bounds=[300,300], border_visible=True, bgcolor="cyan")
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        cont.tools.append(MoveTool(cont, drag_button="left"))
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        cont2.tools.append(MoveTool(cont2, drag_button="left"))
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        outer = Container(cont, cont2, fit_window=True)
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        return Window(self, -1, component=outer)
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if __name__ == "__main__":
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    demo_main(MainFrame, size=(800,800), title="ClipTest")
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