An example of embedding an imshow() like image in gtk

I'm trying to embed functionality similar to the pylab.imshow() feature
in a gtk application, but my bony head can't find an example program where someone
does this explicitly, and hunting in the pylab interface has been rather
frustrating.

I'm using the the more typical x-y plots in gtk apps aleady (thank you
example writers), but the ability to show an colormapped 2d image with a
color bar would be really great.

Any takers?

-- Jon

···

--
.*. Dr. Jon R. Fox
..* http://www.drfox.com
*** jonfox@...1014...

I thought for a bit longer and found something that works just right:

#!/usr/bin/env python

import pygtk
pygtk.require('2.0')
import gtk
import matplotlib
matplotlib.use('GTK')
from matplotlib.figure import Figure
from matplotlib.backends.backend_gtk import FigureCanvasGTK, NavigationToolbar

from Numeric import *

def close_app(widget, data=None):
    """ A call back if the close window control is clicked."""

    print "delete_event being handled"
    gtk.main_quit() # gracefully end the application.

if __name__ == "__main__":
    main_window = gtk.Window(gtk.WINDOW_TOPLEVEL)

    # Connect the delete_event signal to a function to close the application.
    main_window.connect( "delete_event", close_app)
    main_window.show()

    figure = Figure(figsize=(6,4), dpi=72)
    axes = figure.add_subplot(111)
    # This calls the imshow routine and builds an Axes instance for us.
    axes.imshow( array([[2,4,5,5],[5,6,7,8],[7,6,5,7]]))

    main_window.set_border_width(10)
   
    figure_canvas = FigureCanvasGTK(figure)
    nav_tool = NavigationToolbar(figure_canvas,main_window)
    nav_tool.show()
    figure_canvas.show()
    
    vbox = gtk.VBox()
    vbox.show()
    vbox.pack_start(figure_canvas)
    vbox.pack_start(nav_tool, False, False)
    
    main_window.add(vbox)

    gtk.main()

···

On Mon, Feb 27, 2006 at 11:47:57AM -0500, Jon Fox wrote:

I'm trying to embed functionality similar to the pylab.imshow() feature
in a gtk application, but my bony head can't find an example program where someone
does this explicitly, and hunting in the pylab interface has been rather
frustrating.

I'm using the the more typical x-y plots in gtk apps aleady (thank you
example writers), but the ability to show an colormapped 2d image with a
color bar would be really great.

Any takers?

-- Jon

--
.*. Dr. Jon R. Fox
..* http://www.drfox.com
*** jonfox@...1014...

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--
.*. Dr. Jon R. Fox
..* http://www.drfox.com
*** jonfox@...1014...