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Hello,<BR>I want to use drag and drop in a gtk.DrawingArea, but when I use it, it is very slow : I am refreshing each time the mouse moves so the image does not follow the mouse. I also tried something else that consist in only refreshing the part of the gtk.DrawingArea which need to be refresh : it is not slow, but the area flash once on the part I refresh (because I delete the part before displaying the image again at a new position).<BR>Here is an example of a code that I made which is very, very slow (it refresh ALL the area each time the mouse moves) :<BR># -*- coding:Utf-8 -*-<BR>import pygtk<BR>pygtk.require("2.0")<BR>import gtk<BR>import cairo<BR><BR>class espaceDessin(gtk.DrawingArea):<BR> def __init__(self):<BR> super(espaceDessin, self).__init__()<BR> <BR> self.set_size_request(400, 400)<BR> self.modify_bg(gtk.STATE_NORMAL, gtk.gdk.color_parse("white"))<BR> self.add_events(gtk.gdk.BUTTON_PRESS_MASK | gtk.gdk.BUTTON_RELEASE_MASK | gtk.gdk.BUTTON1_MOTION_MASK)<BR> self.connect("button-press-event", self.boutonSourisEnfonce)<BR> self.connect("motion-notify-event", self.sourisBouge)<BR> self.connect("button-release-event", self.boutonSourisRelache)<BR> self.connect("expose-event", self.expose)<BR> <BR> self.surface1 = cairo.ImageSurface.create_from_png("gtk.png")<BR> self.surface2 = cairo.ImageSurface.create_from_png("tux.png")<BR> self.surface3 = cairo.ImageSurface.create_from_png("babyTux.png")<BR> <BR> self.largeur1 = self.surface1.get_width()<BR> self.hauteur1 = self.surface1.get_height()<BR> self.largeur2 = self.surface2.get_width()<BR> self.hauteur2 = self.surface2.get_height()<BR> self.largeur3 = self.surface3.get_width()<BR> self.hauteur3 = self.surface3.get_height()<BR> <BR> self.posX1 = 0<BR> self.posY1 = 0<BR> self.posX2 = 150<BR> self.posY2 = 200<BR> self.posX3 = 250<BR> self.posY3 = 100<BR> <BR> self.imageSelectionne = ''<BR> <BR> self.posSourisX = -1<BR> self.posSourisY = -1<BR> <BR> def boutonSourisEnfonce(self, widget, evenement):<BR> if evenement.button == 1:<BR> if evenement.x > self.posX1 and evenement.x < self.posX1 + self.largeur1:<BR> if evenement.y > self.posY1 and evenement.y < self.posY1 + self.hauteur1:<BR> self.imageSelectionne = 'GTK'<BR> elif evenement.x > self.posX2 and evenement.x < self.posX2 + self.largeur2:<BR> if evenement.y > self.posY2 and evenement.y < self.posY2 + self.hauteur2:<BR> self.imageSelectionne = 'TUX'<BR> elif evenement.x > self.posX3 and evenement.x < self.posX3 + self.largeur3:<BR> if evenement.y > self.posY3 and evenement.y < self.posY3 + self.hauteur3:<BR> self.imageSelectionne = 'BABYTUX'<BR> else:<BR> self.imageSelectionne = ''<BR> <BR> def sourisBouge(self, widget, evenement):<BR> if evenement.is_hint:<BR> self.posSourisX, self.posSourisY, state = event.window.get_pointer()<BR> else:<BR> self.posSourisX = evenement.x<BR> self.posSourisY = evenement.y<BR> state = evenement.state<BR> if state & gtk.gdk.BUTTON1_MASK:<BR> contexte = self.window.cairo_create()<BR> contexte.set_source_rgb(255, 255, 255)<BR> contexte.paint()<BR> if self.imageSelectionne == 'GTK':<BR> contexte.set_source_surface(self.surface1, self.posX1, self.posY1)<BR> contexte.paint()<BR> self.posX1 = self.posSourisX - self.largeur1 / 2<BR> self.posY1 = self.posSourisY - self.hauteur1 / 2<BR> elif self.imageSelectionne == 'TUX':<BR> contexte.set_source_surface(self.surface2, self.posX2, self.posY2)<BR> contexte.paint()<BR> self.posX2 = self.posSourisX - self.largeur2 / 2<BR> self.posY2 = self.posSourisY - self.hauteur2 / 2<BR> elif self.imageSelectionne == 'BABYTUX':<BR> contexte.set_source_surface(self.surface3, self.posX3, self.posY3)<BR> contexte.paint()<BR> self.posX3 = self.posSourisX - self.largeur3 / 2<BR> self.posY3 = self.posSourisY - self.hauteur3 / 2<BR> self.expose(widget, None)<BR> <BR> def boutonSourisRelache(self, widget, evenement):<BR> self.expose(widget, None)<BR> <BR> def expose(self, widget, evenement):<BR> contexte = widget.window.cairo_create()<BR> contexte.set_source_rgb(255, 255, 255)<BR> contexte.set_source_surface(self.surface1, self.posX1, self.posY1)<BR> contexte.paint()<BR> contexte.set_source_surface(self.surface2, self.posX2, self.posY2)<BR> contexte.paint()<BR> contexte.set_source_surface(self.surface3, self.posX3, self.posY3)<BR> contexte.paint()<BR><BR>class PyGtkApp(gtk.Window):<BR> def __init__(self):<BR> super(PyGtkApp, self).__init__()<BR> <BR> self.set_title("Drag and Drop dans DrawingArea")<BR> self.set_default_size(640, 480)<BR> self.set_position(gtk.WIN_POS_CENTER)<BR> <BR> zoneDessin = espaceDessin()<BR> boiteH = gtk.HBox()<BR> boiteV = gtk.VBox()<BR> boiteH.pack_start(boiteV, False, False)<BR> boiteV.pack_start(zoneDessin, False, False)<BR> self.add(boiteH)<BR> <BR> self.connect("destroy", gtk.main_quit)<BR> <BR> self.show_all()<BR><BR>PyGtkApp()<BR>gtk.main()<BR><BR><BR>Thanks for your help.<BR><br /><hr />Naviguez plus vite avec Internet Explorer 8 <a href='http://go.microsoft.com/?linkid=9655263' target='_new'>Ici.</a></body>
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