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# Copyright (c) 2008, Media Modifications Ltd.
#Permission is hereby granted, free of charge, to any person obtaining a copy
#of this software and associated documentation files (the "Software"), to deal
#in the Software without restriction, including without limitation the rights
#to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
#copies of the Software, and to permit persons to whom the Software is
#furnished to do so, subject to the following conditions:
#The above copyright notice and this permission notice shall be included in
#all copies or substantial portions of the Software.
#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
#IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
#FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
#AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
#LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
#OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
#THE SOFTWARE.
import gtk
from gtk import gdk
import gobject
import cairo
import math
class P5(gtk.DrawingArea):
def __init__(self, button=False):
super(P5, self).__init__()
self.connect("expose_event", self.expose)
if (button):
self.add_events(gdk.BUTTON_PRESS_MASK | gdk.BUTTON_RELEASE_MASK | gdk.POINTER_MOTION_MASK)
self.connect("button_press_event", self._buttonPress)
def expose(self, widget, event):
ctx = widget.window.cairo_create()
# set a clip region for the expose event
ctx.rectangle(event.area.x, event.area.y, event.area.width, event.area.height)
ctx.clip()
rect = widget.allocation
self.draw( ctx, rect.width, rect.height )
def redraw_canvas(self):
#called from update
if self.window:
alloc = self.get_allocation()
self.queue_draw_area(0, 0, alloc.width, alloc.height)
self.window.process_updates(True)
def update(self):
#paint thread -- call redraw_canvas, which calls expose
self.redraw_canvas()
def fillRect( self, ctx, col, w, h ):
self.setColor( ctx, col )
ctx.line_to(0, 0)
ctx.line_to(w, 0)
ctx.line_to(w, h)
ctx.line_to(0, h)
ctx.close_path()
ctx.fill()
def setColor( self, ctx, col ):
if (not col._opaque):
ctx.set_source_rgba( col._r, col._g, col._b, col._a )
else:
ctx.set_source_rgb( col._r, col._g, col._b )
def _buttonPress(self, widget, event):
self.fireButton()
def fireButton( self ):
#for extending
pass
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