#!/usr/bin/env python
# example colorsel.py
import pygtk
pygtk.require('2.0')
import gtk
class ColorSelectionExample:
# Color changed handler
def color_changed_cb(self, widget):
# Get drawingarea colormap
colormap = self.drawingarea.get_colormap()
# Get current color
color = self.colorseldlg.colorsel.get_current_color()
# Set window background color
self.drawingarea.modify_bg(gtk.STATE_NORMAL, color)
# Drawingarea event handler
def area_event(self, widget, event):
handled = False
# Check if we've received a button pressed event
if event.type == gtk.gdk.BUTTON_PRESS:
handled = True
# Create color selection dialog
if self.colorseldlg is None:
self.colorseldlg = gtk.ColorSelectionDialog(
"Select background color")
# Get the ColorSelection widget
colorsel = self.colorseldlg.colorsel
colorsel.set_previous_color(self.color)
colorsel.set_current_color(self.color)
colorsel.set_has_palette(True)
# Connect to the "color_changed" signal
colorsel.connect("color_changed", self.color_changed_cb)
# Show the dialog
response = self.colorseldlg.run()
if response -- gtk.RESPONSE_OK:
self.color = colorsel.get_current_color()
else:
self.drawingarea.modify_bg(gtk.STATE_NORMAL, self.color)
self.colorseldlg.hide()
return handled
# Close down and exit handler
def destroy_window(self, widget, event):
gtk.main_quit()
return True
def __init__(self):
self.colorseldlg = None
# Create toplevel window, set title and policies
window = gtk.Window(gtk.WINDOW_TOPLEVEL)
window.set_title("Color selection test")
window.set_resizable(True)
# Attach to the "delete" and "destroy" events so we can exit
window.connect("delete_event", self.destroy_window)
# Create drawingarea, set size and catch button events
self.drawingarea = gtk.DrawingArea()
self.color = self.drawingarea.get_colormap().alloc_color(0, 65535, 0)
self.drawingarea.set_size_request(200, 200)
self.drawingarea.set_events(gtk.gdk.BUTTON_PRESS_MASK)
self.drawingarea.connect("event", self.area_event)
# Add drawingarea to window, then show them both
window.add(self.drawingarea)
self.drawingarea.show()
window.show()
def main():
gtk.main()
return 0
if __name__ == "__main__":
ColorSelectionExample()
main()
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