Python gi.repository.Gdk 模块，KEY_Down() 实例源码

def __on_progress_key_pressed(self, widget, event):
        """
        Jump to the modified time.
        """
        old_val = self.progress_scale.get_value()
        if event.keyval == Gdk.KEY_Up or event.keyval == Gdk.KEY_Left:
            if old_val > 30.0:
                player.jump_to(old_val - 30)
            else:
                player.jump_to(0)
        elif event.keyval == Gdk.KEY_Down or event.keyval == Gdk.KEY_Right:
            upper = self.progress_scale.get_adjustment().get_upper()
            if old_val + 30.0 < upper:
                player.jump_to(old_val + 30)
            else:
                player.jump_to(upper)

        return False

def treeview_key_press(self, treeview, event):

        # to print list of key values do:
        #     print dir(Gtk.keysyms)

        # if up or down pressed then position the board at the move
        if event.keyval == Gdk.KEY_Up or event.keyval == Gdk.KEY_Down:
            self.treeview_button_press(None, None)

    # user clicked on the move list

def keyPress( self, widget, event ):
        if event.string.strip() != "" or event.keyval == Gdk.KEY_BackSpace:
            self.searchEntry.grab_focus()
            self.searchEntry.set_position( -1 )
            self.searchEntry.event( event )
            return True

        if event.keyval == Gdk.KEY_space:
            self.searchEntry.event(event)
            return True

        if event.keyval == Gdk.KEY_Down and self.searchEntry.is_focus():
            self.applicationsBox.get_children()[0].grab_focus()

        return False

def on_key_press_event(self, widget, event):
        if event.keyval == Gdk.KEY_Left:
            self.x -= self.POS_INCREMENT/self.zoom_ratio
            self.queue_draw()
            return True
        if event.keyval == Gdk.KEY_Right:
            self.x += self.POS_INCREMENT/self.zoom_ratio
            self.queue_draw()
            return True
        if event.keyval == Gdk.KEY_Up:
            self.y -= self.POS_INCREMENT/self.zoom_ratio
            self.queue_draw()
            return True
        if event.keyval == Gdk.KEY_Down:
            self.y += self.POS_INCREMENT/self.zoom_ratio
            self.queue_draw()
            return True
        if event.keyval in (Gdk.KEY_Page_Up,
                            Gdk.KEY_plus,
                            Gdk.KEY_equal,
                            Gdk.KEY_KP_Add):
            self.zoom_image(self.zoom_ratio * self.ZOOM_INCREMENT)
            self.queue_draw()
            return True
        if event.keyval in (Gdk.KEY_Page_Down,
                            Gdk.KEY_minus,
                            Gdk.KEY_KP_Subtract):
            self.zoom_image(self.zoom_ratio / self.ZOOM_INCREMENT)
            self.queue_draw()
            return True
        if event.keyval == Gdk.KEY_Escape:
            self.drag_action.abort()
            self.drag_action = NullAction(self)
            return True
        if event.keyval == Gdk.KEY_r:
            self.reload()
            return True
        if event.keyval == Gdk.KEY_f:
            win = widget.get_toplevel()
            find_toolitem = win.uimanager.get_widget('/ToolBar/Find')
            textentry = find_toolitem.get_children()
            win.set_focus(textentry[0])
            return True
        if event.keyval == Gdk.KEY_q:
            Gtk.main_quit()
            return True
        if event.keyval == Gdk.KEY_p:
            self.on_print()
            return True
        return False