diff options
Diffstat (limited to 'p5.py')
| -rw-r--r-- | p5.py | 228 |
1 files changed, 114 insertions, 114 deletions
@@ -27,164 +27,164 @@ import math #Sometimes a gtk.Image is a useful alternative to a drawing area. You can put a gtk.gdk.Pixmap in the gtk.Image and draw to the gtk.gdk.Pixmap, calling the gtk.Widget.queue_draw() method on the gtk.Image when you want to refresh to the screen. class P5(gtk.DrawingArea): - def __init__(self): - super(P5, self).__init__() + def __init__(self): + super(P5, self).__init__() - # gtk.Widget signals - self.connect("expose_event", self.expose) - self.connect("button_press_event", self.button_press) - self.connect("button_release_event", self.button_release) - self.connect("motion_notify_event", self.motion_notify) + # gtk.Widget signals + self.connect("expose_event", self.expose) + self.connect("button_press_event", self.button_press) + self.connect("button_release_event", self.button_release) + self.connect("motion_notify_event", self.motion_notify) - # ok, we have to listen to mouse events here too - self.add_events(gdk.BUTTON_PRESS_MASK | gdk.BUTTON_RELEASE_MASK | gdk.POINTER_MOTION_MASK) - self._dragging = False - self._mouseX = 0 - self._mouseY = 0 + # ok, we have to listen to mouse events here too + self.add_events(gdk.BUTTON_PRESS_MASK | gdk.BUTTON_RELEASE_MASK | gdk.POINTER_MOTION_MASK) + self._dragging = False + self._mouseX = 0 + self._mouseY = 0 - self._w = -1 - self._h = -1 + self._w = -1 + self._h = -1 - #ok, this calls an initial painting & setting of painterly variables - #e.g. time for the clock widget - #(but not through to redraw_canvas when called here first time) - self._msecUpdate = 100 - self._looping = False - self.noloop() + #ok, this calls an initial painting & setting of painterly variables + #e.g. time for the clock widget + #(but not through to redraw_canvas when called here first time) + self._msecUpdate = 100 + self._looping = False + self.noloop() - def loop(self): - if (self._looping): - return - else: - self._looping = True - # this is our maybe-threaded refresh (in millisecs) - gobject.timeout_add( self._msecUpdate, self.update ) + def loop(self): + if (self._looping): + return + else: + self._looping = True + # this is our maybe-threaded refresh (in millisecs) + gobject.timeout_add( self._msecUpdate, self.update ) - def noloop(self): - self._looping = False - self.redraw() + def noloop(self): + self._looping = False + self.redraw() - def redraw(self): - self.update() + def redraw(self): + self.update() - def expose(self, widget, event): - ctx = widget.window.cairo_create() + 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() + # 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, event.area.width, event.area.height) - self.draw( ctx, rect.width, rect.height ) + rect = widget.allocation + #self.draw(ctx, event.area.width, event.area.height) + self.draw( ctx, rect.width, rect.height ) - def button_press(self, widget, event): - self._mouseX = event.x - self._mouseY = event.y - self._dragging = True + def button_press(self, widget, event): + self._mouseX = event.x + self._mouseY = event.y + self._dragging = True - def button_release(self, widget, event): - if self._dragging: - self._dragging = False + def button_release(self, widget, event): + if self._dragging: + self._dragging = False - def motion_notify(self, widget, event): - self._mouseX = event.x - self._mouseY = event.y + def motion_notify(self, widget, event): + self._mouseX = event.x + self._mouseY = event.y - def draw(self, ctx, w, h): - ctx.set_antialias( cairo.ANTIALIAS_NONE ) - ctx.set_line_width( 1 ) - ctx.identity_matrix( ) - if ((w != self._w) or (h != self._h)): - self._w = w - self._h = h - self.doResize( ) + def draw(self, ctx, w, h): + ctx.set_antialias( cairo.ANTIALIAS_NONE ) + ctx.set_line_width( 1 ) + ctx.identity_matrix( ) + if ((w != self._w) or (h != self._h)): + self._w = w + self._h = h + self.doResize( ) - def doResize(self): - pass + def doResize(self): + pass - #called from update - def redraw_canvas(self): - if self.window: - alloc = self.get_allocation() - #this is odd behavior, but once we add this widget to a parent (vbox) - #it requires setting the q_d_a x,y to 0, 0 - #self.queue_draw_area(alloc.x, alloc.y, alloc.width, alloc.height) - self.queue_draw_area(0, 0, alloc.width, alloc.height) - self.window.process_updates(True) + #called from update + def redraw_canvas(self): + if self.window: + alloc = self.get_allocation() + #this is odd behavior, but once we add this widget to a parent (vbox) + #it requires setting the q_d_a x,y to 0, 0 + #self.queue_draw_area(alloc.x, alloc.y, alloc.width, alloc.height) + 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() - if (self._looping): - return True # keep running this event - else: - return False + def update(self): + #paint thread -- call redraw_canvas, which calls expose + self.redraw_canvas() + if (self._looping): + return True # keep running this event + else: + return False - def drawShape( self, ctx, poly, col ): - self.setColor( ctx, col ) + def drawShape( self, ctx, poly, col ): + self.setColor( ctx, col ) - for i in range ( 0, len(poly._xs) ): - ctx.line_to ( poly._xs[i], poly._ys[i] ) - ctx.close_path() - ctx.set_line_width(1) - ctx.stroke() + for i in range ( 0, len(poly._xs) ): + ctx.line_to ( poly._xs[i], poly._ys[i] ) + ctx.close_path() + ctx.set_line_width(1) + ctx.stroke() - def fillShape( self, ctx, poly, col ): - self.setColor( ctx, col ) - for i in range ( 0, len(poly._xs) ): - ctx.line_to (poly._xs[i], poly._ys[i]) - ctx.close_path() + def fillShape( self, ctx, poly, col ): + self.setColor( ctx, col ) + for i in range ( 0, len(poly._xs) ): + ctx.line_to (poly._xs[i], poly._ys[i]) + ctx.close_path() - ctx.fill() + ctx.fill() - def background( self, ctx, col, w, h ): - self.setColor( ctx, col ) + def background( 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.line_to(0, 0) + ctx.line_to(w, 0) + ctx.line_to(w, h) + ctx.line_to(0, h) + ctx.close_path() - ctx.fill() + ctx.fill() - def rect( self, ctx, x, y, w, h ): - ctx.line_to(x, y) - ctx.line_to(x+w, y) - ctx.line_to(x+w, y+h) - ctx.line_to(x, y+h) - ctx.close_path() + def rect( self, ctx, x, y, w, h ): + ctx.line_to(x, y) + ctx.line_to(x+w, y) + ctx.line_to(x+w, y+h) + ctx.line_to(x, y+h) + ctx.close_path() - 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 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 line( self, ctx, x1, y1, x2, y2 ): - ctx.move_to (x1, y1) - ctx.line_to (x2, y2) - ctx.stroke() + def line( self, ctx, x1, y1, x2, y2 ): + ctx.move_to (x1, y1) + ctx.line_to (x2, y2) + ctx.stroke() - def point( self, ctx, x1, y1 ): - self.line( ctx, x1, y1, x1+1, y1 )
\ No newline at end of file + def point( self, ctx, x1, y1 ): + self.line( ctx, x1, y1, x1+1, y1 )
\ No newline at end of file |