def on_system_paint(self, ev):
bitmap = self.bitmap
painter = Painter(self.bitmap)
border = self.border_width()
width = self.window_width()
height = self.window_height()
caption_color = SteelBlue if self.active() else LightSteelBlue
border_color = 0xaaffffff & caption_color
if self.attr() & WND_TRANSPARENT:
painter.clear()
else:
painter.fill_rect(self.margin_left(), self.margin_top(),
self.width(), self.height(), White)
if self.attr() & WND_FRAME:
rc = Rect(0, 0, self.window_width() - 1, self.window_height() - 1)
max_alpha = 40 if self.active() else 20
dalpha = max_alpha / DEFAULT_BORDER_WIDTH
for i in xrange(DEFAULT_BORDER_WIDTH - 1):
painter.set_pen_color(i * dalpha << 24)
painter.draw_rect(rc)
rc.adjust(1, 1, -1, -1)
painter.set_pen_color(caption_color)
painter.draw_rect(rc)
if self.attr() & WND_CAPTION:
# fill caption
caption_color &= 0xddffffff
caption_rc = Rect(border, border, width - 2 * border,
self.caption_height())
painter.fill_rect(rc, caption_color)
# draw title
painter.set_pen_color(White)
rc = caption_rc.translated(10, 0)
painter.draw_text(rc, Painter.AlignLeft | Painter.AlignVCenter,
self.title_)
# draw close/maximize/minimize
painter.save()
painter.set_pen_color(DarkWhite)
painter.set_render_hint(Painter.Antialiasing)
# close
painter.set_pen_width(2)
rc = Rect(self.close_rect())
painter.draw_line(rc.top_left(), rc.bottom_right())
painter.draw_line(rc.top_right(), rc.bottom_left())
# maximize
painter.draw_rect(Rect(self.maximize_rect()))
# minimize
rc = Rect(self.minimize_rect())
painter.draw_line(rc.bottom_left(), rc.bottom_right())
painter.restore()
