cell_renderer_pixbuf_toggle.cc

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/*
    Copyright (C) 2009 Paul Davis
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program 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 General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

    $Id: cell_renderer_toggle_pixbuf.cc $
*/

#include <iostream>
#include <gtkmm.h>

#include <gtkmm2ext/cell_renderer_pixbuf_toggle.h>

using namespace std;
using namespace Gtk;
using namespace Gdk;
using namespace Glib;
using namespace Gtkmm2ext;


CellRendererPixbufToggle::CellRendererPixbufToggle() : 
        Glib::ObjectBase( typeid(CellRendererPixbufToggle) ),
        Gtk::CellRenderer(),
        property_pixbuf_(*this, "pixbuf"),
        property_active_(*this, "active", false)
{
        property_mode() = Gtk::CELL_RENDERER_MODE_ACTIVATABLE;
        property_xpad() = 2;
        property_ypad() = 2;
        property_sensitive() = false;
}

Glib::PropertyProxy< Glib::RefPtr<Gdk::Pixbuf> > 
CellRendererPixbufToggle::property_pixbuf()
{
        return property_pixbuf_.get_proxy();
} 

Glib::PropertyProxy<bool> 
CellRendererPixbufToggle::property_active()
{
        return property_active_.get_proxy();
} 

// Overridden methods of the parent CellRenderer  
Glib::PropertyProxy_Base 
CellRendererPixbufToggle::_property_renderable()
{
        return property_pixbuf();
}  

bool 
CellRendererPixbufToggle::activate_vfunc(GdkEvent*, Gtk::Widget&, const Glib::ustring& path, const Gdk::Rectangle&, const Gdk::Rectangle&, Gtk::CellRendererState)
{
        signal_toggled_(path);
        return true;
}



void 
CellRendererPixbufToggle::render_vfunc (const Glib::RefPtr<Gdk::Drawable>& window, Gtk::Widget& /*widget*/, const Gdk::Rectangle& /*background_area*/, const Gdk::Rectangle& cell_area, const Gdk::Rectangle& /*expose_area*/, Gtk::CellRendererState /*flags*/)
{
        int offset_width = 0;
        int offset_height = 0;
        
        if(property_active() == true){

                offset_width = cell_area.get_x() +  (int)(cell_area.get_width() - inactive_pixbuf->get_width())/2;
                offset_height = cell_area.get_y() + (int)(cell_area.get_height() - inactive_pixbuf->get_height())/2;

                window->draw_pixbuf (RefPtr<GC>(), active_pixbuf, 0, 0, offset_width, offset_height, -1, -1, Gdk::RGB_DITHER_NORMAL, 0, 0);
        }
        else {
                offset_width = cell_area.get_x() + (int)(cell_area.get_width() - inactive_pixbuf->get_width())/2;
                offset_height = cell_area.get_y() + (int)(cell_area.get_height() - inactive_pixbuf->get_height())/2;

                window->draw_pixbuf (RefPtr<GC>(), inactive_pixbuf, 0, 0, offset_width, offset_height, -1, -1, Gdk::RGB_DITHER_NORMAL, 0, 0);
        }
}

void 
CellRendererPixbufToggle::get_size_vfunc (Gtk::Widget& /*widget*/, const Gdk::Rectangle* /*cell_area*/, int* /*x_offset*/, int* /*y_offset*/, int* /*width*/, int* /*height*/) const
{
//cerr << "cell_renderer_pixbuf_toggle get_size" << endl;

}

void
CellRendererPixbufToggle::set_active_pixbuf(Glib::RefPtr<Gdk::Pixbuf> pixbuf){
        active_pixbuf = pixbuf;
}

void
CellRendererPixbufToggle::set_inactive_pixbuf(Glib::RefPtr<Gdk::Pixbuf> pixbuf){
        inactive_pixbuf = pixbuf;
}

CellRendererPixbufToggle::SignalToggled& 
CellRendererPixbufToggle::signal_toggled()
{
  return signal_toggled_;
}