On Tue, Sep 1, 2009 at 07:34, Kim Adil<ka...@proactiveindustrial.net> wrote: > I once wrote a gtk program in C that displayed about 30 animations on a > drawing area and they moved around the screen, and performance was > excellent. The drawingarea size was 1600x1200 and the animations were > very smooth. > > I have started to write a similar app using pygtk in a more object > oriented way, and the drawing area size really seems to have a large > impact on performance. When the drawing area is 100x100, anims are > smooth. If the drawing area is dragged to 1000x1000 the frame rate drops > very quickly. Is this to be expected with the python being interpreted, > or is it just that my code is inefficient. See sample below (requires 2 > animated gif files a.gif and a2.gif, just substitute any from the web for > demonstartion, and a glade file attached):
I recommend you that take the time to profile it with a tool such as this one: http://www.vrplumber.com/programming/runsnakerun/ That will tell which part of your program is taking most of the cpu and you won't need to guess. Regards, Tomeu > #!/usr/bin/env python > import sys > import pygtk > import glib > import gtk > import gtk.glade > # main window to display objects in motion > > i=1 > class MainWin: > def __init__(self): > self.gladefile = "hv.glade" > self.wTree = gtk.glade.XML(self.gladefile, "main_win") > dic = {"on_drawingarea1_expose_event" : self.expose, > "on_drawingarea1_configure_event": self.configure, > } > self.wTree.signal_autoconnect(dic) > self.window = self.wTree.get_widget("main_win") > self.da = self.wTree.get_widget("drawingarea1") > self.window.show_all() > x, y, width, height = self.da.get_allocation() > self.pixmap = gtk.gdk.Pixmap(self.da.window, width, height) > self.machlist = [] > self.setup_objects() > glib.timeout_add(30, self.draw_objects) > > def setup_objects(self): > self.machlist.append(Object('t1','v','stopped',10,10,'a.gif')) > self.machlist.append(Object('t2','v','travelling',300,10,'a2.gif')) > self.machlist.append(Object('t3','v','stopped',100,300,'a.gif')) > self.machlist.append(Object('t4','v','stopped',600,600,'a2.gif')) > self.machlist.append(Object('t5','v','stopped',100,60,'a.gif')) > self.machlist.append(Object('t6','f','stopped',60,100,'a.gif')) > self.machlist.append(Object('t7','f','travelling',100,100,'a.gif')) > > def draw_objects(self): > x, y, width, height = self.da.get_allocation() > self.pixmap = gtk.gdk.Pixmap(self.da.window, width, height) > self.pixmap.draw_rectangle(self.da.get_style().white_gc,True, 0, > 0, width, height) > for object in self.machlist: > > self.pixmap.draw_pixbuf(self.da.get_style().fg_gc[gtk.STATE_NORMAL],object.pb, > 0, 0, object.x,object.y) > return True > def expose(self,a,b): > x, y, width, height = self.da.get_allocation() > > self.da.window.draw_drawable(self.da.get_style().fg_gc[gtk.STATE_NORMAL],self.pixmap, > x, y, x, y, width, height) > self.da.queue_draw_area(x, y, width, height) > return False > > def configure(self,a,b): > x, y, width, height = self.da.get_allocation() > > self.da.window.draw_drawable(self.da.get_style().fg_gc[gtk.STATE_NORMAL],self.pixmap, > x, y, x, y, width, height) > return False > > def cleanup(self): > for object in self.machlist: > glib.source_remove(object.timeout) > > def list_objects(self): > self.draw_objects() > for object in self.machlist: > > self.pixmap.draw_pixbuf(self.da.get_style().fg_gc[gtk.STATE_NORMAL],object.pb, > 0, 0, 0, 0) > #self.da.queue_draw() > class Object: > def __init__(self,name,model,state,x,y,anim): > self.name=name > self.model=model > self.state=state > self.x=x > self.y=y > self.anim=anim > self.image='l' > self.frame=0 > self.imagef = gtk.Image() > self.pixbufanim = gtk.gdk.PixbufAnimation(anim) > print 'width %d - height > %d'%(self.pixbufanim.get_width(),self.pixbufanim.get_height()) > self.pbiter = self.pixbufanim.get_iter() > print 'delay time %d'%(self.pbiter.get_delay_time()) > self.pb=self.pbiter.get_pixbuf() > self.t=glib.timeout_add(self.pbiter.get_delay_time(), > self.update_pb) > > def update_pb(self): > self.pbiter.advance() > self.pb=self.pbiter.get_pixbuf() > self.t=glib.timeout_add(self.pbiter.get_delay_time(), > self.update_pb) > return False > > > print 'create mainwin' > m=MainWin() > gtk.main() > > > > > _______________________________________________ > pygtk mailing list pygtk@daa.com.au > http://www.daa.com.au/mailman/listinfo/pygtk > Read the PyGTK FAQ: http://faq.pygtk.org/ > -- «Sugar Labs is anyone who participates in improving and using Sugar. What Sugar Labs does is determined by the participants.» - David Farning _______________________________________________ pygtk mailing list pygtk@daa.com.au http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://faq.pygtk.org/
