Exemplo n.º 1
0
    def __init__(self, plugin, screen, client):
        self.plugin = plugin
        self.client = client

        self._obsolete = False
        self._active = True
        # This counter ensures that we don't run into
        # an infinite loop. If the window is configured,
        # we configure the actor. If the actor is configured,
        # we configure the window --> much fun.
        # Now, we increment the counter if we configure the
        # window. The actor will only be configured if
        # the counter equals 0. If it is greater than 0,
        # it is simply decremented.
        # Maybe that's not necessary, but it seems to be.
        self._window_configures = 0

        # create the cairo stuff
        self.surface = create_surface(client.actor,
                client.screen.info.get_root_visual_type())
        self.cr = cairo.cairo_create(self.surface)
        cairo.cairo_set_operator(self.cr, cairo.CAIRO_OPERATOR_SOURCE)
        cairo.cairo_set_source_surface(self.cr, self.surface, 0, 0)
        cairo.cairo_set_source_rgba(self.cr, 255, 0, 0, 0)

        self.client.push_handlers(
                on_focus=self.on_focus,
                on_updated_geom=self.on_updated_geom,
                on_blur=self.on_blur,
                )

        self.client.actor.push_handlers(
                on_configure_notify=self.actor_on_configure_notify,
                on_expose=self.on_expose,
                on_button_press=self.on_button_press,
                )
        self.client.window.push_handlers(
                on_property_notify=self.on_property_notify,
                on_configure_notify=self.window_on_configure_notify,
                on_unmap_notify=self.on_unmap_notify,
                on_map_notify=self.on_map_notify,
                )
        # TODO: dirty. something's wrong with substructure and structure notify.
        self.client.screen.root.push_handlers(
                on_configure_notify=self.screen_on_configure_notify
                )

        self.redraw()
Exemplo n.º 2
0
    def redraw(self):
        log.debug('Redrawing, active=%s, obsolete=%s' % (self._active, self._obsolete))

        extents = cairo.cairo_text_extents_t()

        window_title = self.client.get_window_title().encode('utf-8') # <- TODO: is that too expensive?

        if self.client.is_focused():
            bg_color = hex_to_cairo_color(config['cairodeco.color'])
            fg_color = hex_to_cairo_color(config['cairodeco.title.color'])
        else:
            bg_color = hex_to_cairo_color(config.get('cairodeco.inactive_color', config['cairodeco.color']))
            fg_color = hex_to_cairo_color(config.get('cairodeco.title.inactive_color', config['cairodeco.title.color']))

        cairo.cairo_set_source_rgba(self.cr,
                bg_color[0], bg_color[1], bg_color[2], 1)
        cairo.cairo_set_operator(self.cr, cairo.CAIRO_OPERATOR_SOURCE)
        cairo.cairo_paint(self.cr)

        cairo.cairo_set_operator(self.cr, cairo.CAIRO_OPERATOR_OVER)

        cairo.cairo_set_source_rgba(self.cr, fg_color[0], fg_color[1], fg_color[2], 1)

        cairo.cairo_show_text(self.cr, window_title)
        cairo.cairo_text_extents(self.cr, window_title, extents)

        width = self.client.geom.width
        x = 0

        if config['cairodeco.title.position'] == 'left':
            x = 0
        elif config['cairodeco.title.position'] == 'right':
            x = width - extents.x_advance
        elif config['cairodeco.title.position'] == 'center':
            x = (width - extents.x_advance) / 2


        cairo.cairo_move_to(self.cr,
                x,
                config['cairodeco.height'] - (config['cairodeco.height'] - extents.height) / 2.0)
        self.client.conn.flush()
Exemplo n.º 3
0
            width=width, height=height,
            back_pixel=screen.white_pixel,
            event_mask=xproto.EventMask.Exposure | xproto.EventMask.ButtonPress
    )
    win.map()

    # create a surface for this window
    surface = cairo.cairo_xcb_surface_create(conn, win,
            visualtype,
            width, height)
    
    # and a cairo context
    cr = cairo.cairo_create(surface)
    cairo.cairo_set_operator(cr, cairo.CAIRO_OPERATOR_SOURCE)
    cairo.cairo_set_source_surface(cr, surface, 0, 0)
    cairo.cairo_set_source_rgba(cr, 255, 0, 0, 0)

@win.event
def on_expose(event):
    # paint a red rectangle when an expose event occurs
    cairo.cairo_set_source_rgb(cr, 255, 0, 0)
    cairo.cairo_rectangle(cr, 100, 100, 300, 300)
    cairo.cairo_fill(cr)
    # don't forget to flush!
    conn.flush()

@win.event
def on_button_press(event):
    global running
    running = False