Tom> Can someone port this do pygtk2? Is enough functions wrapped yet to
Tom> do this?
>> from gtk import *
>>
>> def _on_expose(drawingarea, event):
>> # get the GdkWindow
>> window = event.window
>>
>> # get the GC
>> gc = window.new_gc()
>>
>> # create a green color
>> color = drawingarea.get_colormap().alloc(0x0000, 0xFFFF, 0x0000)
>>
>> # use this color for drawing
>> gc.foreground = color
>>
>> # draw a line
>> drawingarea.draw_line(gc, 0, 0, 200, 200)
>>
>>
>> # the usual stuff
>> win = GtkWindow()
>> win.connect("destroy", mainquit)
>> win.show()
>>
>> # create the drawing area
>> drawingarea = GtkDrawingArea()
>> drawingarea.connect("expose-event", _on_expose)
>> drawingarea.show()
>> win.add(drawingarea)
>>
>> # enter the mainloop
>> mainloop()
I came up with this:
#!/usr/bin/env python
import gtk
def _on_expose(drawingarea, event):
# get the GdkWindow
window = event.window
# get the GC
gc = window.new_gc()
# create a green color
color = gtk.gdk.color_parse("green")
# use this color for drawing
gc.foreground = color
# draw a line
drawingarea.window.draw_line(gc, 0, 0, 200, 200)
# the usual stuff
win = gtk.Window()
win.connect("destroy", gtk.mainquit)
win.show()
# create the drawing area
drawingarea = gtk.DrawingArea()
drawingarea.connect("expose-event", _on_expose)
drawingarea.show()
win.add(drawingarea)
# enter the mainloop
gtk.mainloop()
Everything seems to work (no errors), but the line is drawn in black. Note
that the DrawingArea widget doesn't support draw_* directly. I had to dive
into the underlying Gdk widget for that.
Suggested fix(es)?
--
Skip Montanaro ([EMAIL PROTECTED])
http://www.mojam.com/
http://www.musi-cal.com/
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