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# -*- mode: python; coding: utf-8 -*-
#
# Pigment Python binding groups example
#
# Copyright © 2006, 2007, 2008 Fluendo Embedded S.L.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
#
# Author: Florian Boucault <florian@fluendo.com>
import sys, pgm
from pgm.graph import group, image, text
# Handles the key presses
def on_key_press(viewport, event, step_size, parent_group, child_group):
if event.keyval == pgm.keysyms.q or event.keyval == pgm.keysyms.Escape:
pgm.main_quit()
elif event.keyval == pgm.keysyms.Right:
parent_group.x += step_size
elif event.keyval == pgm.keysyms.Left:
parent_group.x -= step_size
elif event.keyval == pgm.keysyms.Down:
parent_group.y += step_size
elif event.keyval == pgm.keysyms.Up:
parent_group.y -= step_size
elif event.keyval == pgm.keysyms.g:
child_group.x += step_size
elif event.keyval == pgm.keysyms.d:
child_group.x -= step_size
elif event.keyval == pgm.keysyms.f:
child_group.y += step_size
elif event.keyval == pgm.keysyms.r:
child_group.y -= step_size
elif event.keyval == pgm.keysyms.e:
parent_group.remove(child_group)
elif event.keyval == pgm.keysyms.t:
parent_group.add(child_group)
elif event.keyval == pgm.keysyms.y:
sx, sy = parent_group.size
new_sx = sx + 0.1
new_sy = sy + 0.1
parent_group.size = (new_sx, new_sy)
elif event.keyval == pgm.keysyms.h:
sx, sy = parent_group.size
new_sx = sx - 0.1
new_sy = sy - 0.1
parent_group.size = (new_sx, new_sy)
# Terminate the mainloop on a delete event
def on_delete(viewport, event):
pgm.main_quit()
def main(args):
# OpenGL viewport creation
gl = pgm.viewport_factory_make('opengl')
gl.title = 'Wrapping drawables'
# Canvas creation
cvs = pgm.Canvas()
# Bind the canvas to the OpenGL viewport
gl.set_canvas(cvs)
# Create text drawables
txt1 = text.Text()
txt1.label = "root text 1"
txt1.height = 0.15
txt1.size = (1.5, 0.75)
txt1.fg_color = (255, 0, 0, 255)
txt1.bg_color = (0, 0, 0, 255)
txt1.visible = True
cvs.add(pgm.DRAWABLE_MIDDLE, txt1)
txt2 = text.Text()
txt2.label = "root text 2"
txt2.height = 0.25
txt2.size = (1.5, 0.75)
txt2.fg_color = (0, 255, 0, 255)
txt2.bg_color = (0, 0, 0, 0)
txt2.visible = True
cvs.add(pgm.DRAWABLE_MIDDLE, txt2)
txt3 = text.Text()
txt3.label = "child text 1"
txt3.height = 0.1
txt3.size = (1.5, 0.75)
txt3.fg_color = (0, 0, 255, 255)
txt3.bg_color = (0, 0, 0, 0)
txt3.visible = True
cvs.add(pgm.DRAWABLE_MIDDLE, txt3)
txt4 = text.Text()
txt4.label = "child text 2"
txt4.height = 0.2
txt4.size = (1.5, 0.75)
txt4.fg_color = (255, 0, 255, 255)
txt4.bg_color = (0, 0, 0, 0)
txt4.visible = True
cvs.add(pgm.DRAWABLE_MIDDLE, txt4)
# Create an image drawable
img1 = image.Image()
img1.set_from_file("examples/pictures/fluendo.png")
img1.size = (1.0, 1.0)
img1.bg_color = (0, 0, 0, 0)
img1.visible = True
cvs.add(pgm.DRAWABLE_MIDDLE, img1)
# Create two groups, one containing the other
child_group = group.Group(cvs, pgm.DRAWABLE_MIDDLE)
child_group.visible = True
child_group.position = (2.0, 1.0, 0.0)
child_group.add(txt1)
child_group.add(txt2)
parent_group = group.Group(cvs, pgm.DRAWABLE_MIDDLE)
parent_group.visible = True
parent_group.position = (0.0, 0.0, 0.0)
parent_group.add(txt3)
parent_group.add(txt4)
parent_group.add(img1)
parent_group.add(child_group)
# Let's start the mainloop
gl.connect('delete-event', on_delete)
gl.connect('key-press-event', on_key_press, 0.5, parent_group, child_group)
gl.show()
pgm.main()
if __name__ == '__main__':
sys.exit(main(sys.argv[1:]))
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