diff options
Diffstat (limited to 'Area.py')
| -rw-r--r-- | Area.py | 67 |
1 files changed, 49 insertions, 18 deletions
@@ -228,6 +228,9 @@ class Area(gtk.DrawingArea): self.drawing_ctx = cairo.Context(self.drawing_canvas) ##This canvas is showed when we need show something and not draw it. + self.temp_canvas = cairo.ImageSurface(cairo.FORMAT_ARGB32, + width, height) + self.temp_ctx = cairo.Context(self.temp_canvas) self._init_temp_canvas() self.enable_undo() @@ -237,14 +240,14 @@ class Area(gtk.DrawingArea): return True - def _init_temp_canvas(self): + def _init_temp_canvas(self, area=None): #logging.error('init_temp_canvas.') #self.drawing_canvas.flush() - width, height = self.get_window().get_size() - self.temp_canvas = cairo.ImageSurface(cairo.FORMAT_ARGB32, - width, height) - self.temp_ctx = cairo.Context(self.temp_canvas) - self.temp_ctx.rectangle(0, 0, width, height) + if area == None: + width, height = self.get_window().get_size() + self.temp_ctx.rectangle(0, 0, width, height) + else: + self.temp_ctx.rectangle(area.x, area.y, area.width, area.height) self.temp_ctx.set_source_surface(self.drawing_canvas) self.temp_ctx.paint() @@ -284,24 +287,23 @@ class Area(gtk.DrawingArea): @param event -- GdkEvent """ - #area = event.area - #logging.error('expose area %s', area) + area = event.area context = self.get_window().cairo_create() + context.rectangle(area.x, area.y, area.width, area.height) + context.clip() if self.desenha: - #logging.error('Expose use temp canvas') + #logging.error('Expose use temp canvas area %s', area) # Paint the canvas in the widget: - # TODO: clipping context.set_source_surface(self.temp_canvas) context.paint() else: - #logging.error('Expose use drawing canvas') - # TODO: clipping + #logging.error('Expose use drawing canvas area %s', area) context.set_source_surface(self.drawing_canvas) context.paint() self.show_tool_shape(context) - self._init_temp_canvas() + self._init_temp_canvas(area) self.display_selection_border(context) def show_tool_shape(self, context): @@ -311,9 +313,9 @@ class Area(gtk.DrawingArea): """ if self.tool['name'] in ['pencil', 'eraser', 'brush', 'rainbow', 'stamp']: - context.set_source_rgba(*self.tool['cairo_stroke_color']) - context.set_line_width(1) if not self.drawing: + context.set_source_rgba(*self.tool['cairo_stroke_color']) + context.set_line_width(1) # draw stamp border in widget.window if self.tool['name'] == 'stamp': wr, hr = self.stamp_dimentions @@ -337,6 +339,8 @@ class Area(gtk.DrawingArea): context.rectangle(self.x_cursor - size / 2, self.y_cursor - size / 2, size, size) context.stroke() + self.last_x_cursor = self.x_cursor + self.last_y_cursor = self.y_cursor def mousedown(self, widget, event): """Make the Area object (GtkDrawingArea) recognize @@ -426,7 +430,28 @@ class Area(gtk.DrawingArea): if design_mode: self.desenha = True - widget.queue_draw() + + def calculate_damaged_area(self, points): + min_x = points[0][0] + min_y = points[0][1] + max_x = 0 + max_y = 0 + for point in points: + if point[0] < min_x: + min_x = point[0] + if point[0] > max_x: + max_x = point[0] + if point[1] < min_y: + min_y = point[1] + if point[1] > max_y: + max_y = point[1] + # add the tool size + size = self.tool['line size'] + min_x = min_x - size + min_y = min_y - size + max_x = max_x + size + max_y = max_y + size + return (min_x, min_y, max_x - min_x, max_y - min_y) def mousemove(self, widget, event): """Make the Area object (GtkDrawingArea) @@ -522,7 +547,10 @@ class Area(gtk.DrawingArea): else: if self.tool['name'] in ['brush', 'eraser', 'rainbow', 'pencil', 'stamp']: - widget.queue_draw() + # define area to update + last_coords = (self.last_x_cursor, self.last_y_cursor) + area = self.calculate_damaged_area([last_coords, coords]) + widget.queue_draw_area(*area) if self.tool['name'] == 'marquee-rectangular': sel_x, sel_y, sel_width, sel_height = \ self.get_selection_bounds() @@ -619,7 +647,6 @@ class Area(gtk.DrawingArea): 'stamp']: self.last = [] self.d.finish_trace(self) - widget.queue_draw() self.drawing = False self.desenha = False if not private_undo and self.tool['name'] != 'bucket': @@ -628,6 +655,8 @@ class Area(gtk.DrawingArea): # gobject.idle_add (with the fill_flood function) finishes # and an unconsistent undo state is saved self.enable_undo() + widget.queue_draw() + self.d.clear_control_points() def fast_flood_fill(self, widget, x, y, width, height): fill(self.pixmap, self.gc, x, y, width, @@ -1444,9 +1473,11 @@ class Area(gtk.DrawingArea): size = 1 self.tool['line size'] = size self.configure_line(size) + # TODO: clip self.queue_draw() if self.tool['name'] == 'stamp': self.resize_stamp(self.stamp_size + delta) + # TODO: clip self.queue_draw() def _keep_selection_ratio(self, coords): |