class TartanDisplay(object): def __init__(self, app, spec, driver='gl'): self.app = app self.spec = spec self.widgets = [] self.focus_order = None self.parser = FileParser(self.app) self.widgets = self.parser.parse(self.spec["widgets"]) self.canvas = Canvas(self.spec["app"]["width"], self.spec["app"]["height"]) self.display = Display(self.canvas) self.display.set_driver(driver) if len(self.widgets) > 0: self.focused_widget = self.widgets[0] self.build_focus_order() def mark_dirty(self): self.dirty = True def mark_clean(self): self.dirty = False def build_focus_order(self): self.focus_order = self.widgets def refresh(self): self.canvas.clear() self.build_display() self.display.refresh() def blit(self, widget): self.canvas.blit(widget.anchor[0], widget.anchor[1], widget.canvas) def build_display(self): self.canvas.clear() for widget in self.widgets: widget.draw() self.blit(widget)
def main(): """ Main function. """ lst = caca.get_display_driver_list() cur = 0 try: cv = Canvas(0, 0) dp = Display(cv) except (CanvasError, DisplayError) as err: sys.stderr.write("%s\n" % err) sys.exit(127) cv.set_color_ansi(caca.COLOR_WHITE, caca.COLOR_BLACK) while True: cv.put_str(1, 0, "Available drivers:") cur_driver = dp.get_driver() n = 0 for driver, desc in lst: if driver == cur_driver: cv.put_str(2, n + 2, "%s %s (%s)" % ('*', driver, desc)) else: cv.put_str(2, n + 2, "%s %s (%s)" % (' ', driver, desc)) n += 1 cv.put_str(2, n + 3, "Switching driver in 5 seconds") dp.refresh() if dp.get_event(caca.EVENT_KEY_PRESS, Event(), 5000000): break cur += 1 if cur < len(lst) and lst[cur][0] == "raw": cur += 1 if cur >= len(lst): cur = 0 dp.set_driver(lst[cur][0])