如何使用pygtk拖動圖像

Question

如何使用pygtk拖動/移動圖像？

Here是某人在做的視頻，但是這個人沒有給出源代碼。

Answer 1

這裏有一個小的演示（我不（T remmeber excatly是它來自於，對不起），這是非常相似的一個發現這裏：http://www.pygtk.org/pygtk2tutorial/examples/dragndrop.py

import gtk 

class DragImage(gtk.Image): 
    def __init__(self,image,layout): 
     gtk.Image.__init__(self) 
     self.drag = False 
     self.drag_x = 0 
     self.drag_y = 0 
     self.layout = layout 
     self.x = 0 
     self.y = 0 
     self.set_from_file(image) 
     self.event_box = gtk.EventBox() 
     self.event_box.set_visible_window(False) 
     self.event_box.add(self) 
     self.event_box.add_events(gtk.gdk.POINTER_MOTION_MASK | gtk.gdk.BUTTON_PRESS_MASK | gtk.gdk.BUTTON_RELEASE_MASK) 
     self.event_box.connect("button-press-event", self.click) 
     self.event_box.connect("button-release-event", self.release) 
     self.event_box.connect("motion-notify-event", self.mousemove) 
     self.layout.put(self.event_box, 0, 0) 

    def click(self, widget, event): 
     self.drag = True 
     self.drag_x = event.x 
     self.drag_y = event.y 
     print(self.drag_x, self.drag_y) 

    def release(self, widget, event): 
     self.drag = False 

    def mousemove(self,widget,event): 
     if self.drag: 
      self.layout.move(self.event_box,self.x+int(event.x-self.drag_x),self.y+int(event.y-self.drag_y)) 
      self.x, self.y = self.layout.child_get(self.event_box,'x','y') 

class move_test(object): 
    def __init__(self): 
     window = gtk.Window() 
     layout = gtk.Layout() 
     img1 = DragImage('image1.jpg',layout) 
     img2 = DragImage('image2.jpg',layout) 
     window.add(layout) 
     window.show_all() 

move_test() 
gtk.main()