libs/gtkmm2ext/cell_renderer_pixbuf_multi.cc

   1 /*
   2     Copyright (C) 2009 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18     $Id: cell_renderer_toggle_pixbuf.cc $
  19 */
  20
  21 #include <iostream>
  22 #include <gtkmm.h>
  23
  24 #include <gtkmm2ext/cell_renderer_pixbuf_multi.h>
  25
  26 using namespace std;
  27 using namespace Gtk;
  28 using namespace Gdk;
  29 using namespace Glib;
  30 using namespace Gtkmm2ext;
  31
  32
  33 CellRendererPixbufMulti::CellRendererPixbufMulti() :
  34         Glib::ObjectBase( typeid(CellRendererPixbufMulti) ),
  35         Gtk::CellRenderer(),
  36         property_state_(*this, "active", 0)
  37 {
  38         property_mode() = Gtk::CELL_RENDERER_MODE_ACTIVATABLE;
  39         property_xpad() = 2;
  40         property_ypad() = 2;
  41         property_sensitive() = false;
  42 }
  43
  44 Glib::PropertyProxy<uint32_t>
  45 CellRendererPixbufMulti::property_state()
  46 {
  47         return property_state_.get_proxy();
  48 }
  49
  50 // Overridden methods of the parent CellRenderer
  51 Glib::PropertyProxy_Base
  52 CellRendererPixbufMulti::_property_renderable()
  53 {
  54         return property_state();
  55 }
  56
  57 bool
  58 CellRendererPixbufMulti::activate_vfunc(GdkEvent*, Gtk::Widget&, const Glib::ustring& path, const Gdk::Rectangle&, const Gdk::Rectangle&, Gtk::CellRendererState)
  59 {
  60         signal_changed_(path);
  61         return true;
  62 }
  63
  64 void
  65 CellRendererPixbufMulti::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*/)
  66 {
  67         int offset_width = 0;
  68         int offset_height = 0;
  69         Glib::RefPtr<Pixbuf> pb = _pixbufs[property_state()];
  70
  71         offset_width = cell_area.get_x() +  (int)(cell_area.get_width() - pb->get_width())/2;
  72         offset_height = cell_area.get_y() + (int)(cell_area.get_height() - pb->get_height())/2;
  73
  74         window->draw_pixbuf (RefPtr<GC>(), pb, 0, 0, offset_width, offset_height, -1, -1, Gdk::RGB_DITHER_NORMAL, 0, 0);
  75 }
  76
  77 void
  78 CellRendererPixbufMulti::get_size_vfunc (Gtk::Widget& /*widget*/, const Gdk::Rectangle* /*cell_area*/, int* /*x_offset*/, int* /*y_offset*/, int* /*width*/, int* /*height*/) const
  79 {
  80 }
  81
  82 void
  83 CellRendererPixbufMulti::set_pixbuf(uint32_t which, Glib::RefPtr<Gdk::Pixbuf> pixbuf){
  84         _pixbufs[which] = pixbuf;
  85 }
  86
  87 CellRendererPixbufMulti::SignalChanged&
  88 CellRendererPixbufMulti::signal_changed()
  89 {
  90   return signal_changed_;
  91 }