GtkDrawingArea and GtkScrolledWindow

I saw some question asked about making flashget like progress window in gtk+. It can be simply realized using DrawingArea. Then there is also the problem of scrolling the DrawingArea inside a ScrolledWindow. Well, this is simple. Just put a Viewport b/w the DrawingArea and the ScrolledWindow. Then do a set_size_request on the DrawingArea.

#!/usr/bin/python
import pygtk
pygtk.require('2.0')
import gtk

# 2 icons we use in our drawing area.
PICTNAME1="gdraw1.png"
PICTNAME2="gdraw2.png"
def load(pix):
    '''Load GUI'''
    win = gtk.Window()
    gdraw = gtk.DrawingArea()
    sw = gtk.ScrolledWindow()
    sw.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC)
    vp = gtk.Viewport()
    sw.add(vp)
    vp.add(gdraw)

    win.add(sw)
    win.resize(400, 200)
    win.connect('delete-event', gtk.main_quit)
    gdraw.connect('expose-event', expose_pix, pix)
    win.show_all()

def expose_pix(gdraw, event, pix):
    '''At expose event, actual draw graph.'''
    pix1, pix2 = pix
    gc = gdraw.window.new_gc()
    pw = pix1.get_width()
    ph = pix1.get_height()
    geo = gdraw.window.get_geometry()
    gw, gh = geo[2:4]
    dx = dy = 0

    # Draw 100 pixbuf on DrawingArea
    for i in range(100):
        if dx + pw > gw:
            # Move down to the next line
            dx = 0
            dy += ph+1
        if i % 7: # Draw a pix2 every 7 pix1
            pixi = pix1
        else:
            pixi = pix2
        gdraw.window.draw_pixbuf(gc, pixi, 0, 0, 
                                 dx, dy, pw, ph)
        dx += pw+1
    # Set the gdraw size request for Viewport 
    # to the height of our drawing.
    gdraw.set_size_request(-1, dy+ph)

def main():
    pix1 = gtk.gdk.pixbuf_new_from_file(PICTNAME1)
    pix2 = gtk.gdk.pixbuf_new_from_file(PICTNAME2)
    load((pix1, pix2))
    gtk.main()
    
if __name__ == '__main__':
    main()

Told you pygtk is very easy to program with.