#!/usr/bin/python

import pygtk
pygtk.require('2.0')
import gtk

class golden_crop_gtk:
    def delete_event(self, widget, event, data=None):
        """ Before quitting, print a message."""
        print "Goodbye!"
        gtk.main_quit()

    def select_file(self, widget, data=None):
        """This launches the file selection dialog."""
        dialog = gtk.FileChooserDialog("Open..",
            None, gtk.FILE_CHOOSER_ACTION_OPEN,
            (gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL,
            gtk.STOCK_OPEN, gtk.RESPONSE_OK))

        dialog.set_default_response(gtk.RESPONSE_OK)

        filter = gtk.FileFilter()
        filter.set_name("All files")
        filter.add_pattern("*")
        dialog.add_filter(filter)

        # We only want image files
        filter = gtk.FileFilter()
        filter.set_name("Images")
        filter.add_mime_type("image/png")
        filter.add_mime_type("image/jpeg")
        filter.add_mime_type("image/gif")
        filter.add_pattern("*.png")
        filter.add_pattern("*.jpg")
        filter.add_pattern("*.gif")
        filter.add_pattern("*.tif")
        filter.add_pattern("*.xpm")
        dialog.add_filter(filter)

        response = dialog.run()
        if response == gtk.RESPONSE_OK:
            print dialog.get_filename(), 'selected'
            self.selected_file = dialog.get_filename()

        elif response == gtk.RESPONSE_CANCEL:
            print 'Closed, no files selected'
            self.selected_file = ""

        dialog.destroy()

    def __init__(self):
        """Constructor for the main class."""
        self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)

        # When there is a "delete event" emitted, execute the delete_event
        # function.
        self.window.connect("delete_event", self.delete_event)

        # Border width (padding)
        self.window.set_border_width(10)

        # Define the button and what happens when it gets clicked
        self.file_select_button = gtk.Button("Select file")
        self.file_select_button.connect("clicked", self.select_file, None)

        # Add the button to the window, show the button, and show the window
        self.window.add(self.file_select_button)
        self.file_select_button.show()
        self.window.show()

    def main(self):
        """ Sends GTK into the main loop."""
        gtk.main()

crop = golden_crop_gtk()
crop.main()