canvas.h

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// -*- C++ -*-

/*
 * Gnome Chemistry Utils
 * gccv/canvas.h
 *
 * Copyright (C) 2008-2011 Jean Bréfort <jean.brefort@normalesup.org>
 *
 * 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 3 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301
 * USA
 */

#ifndef GCCV_CANVAS_H
#define GCCV_CANVAS_H

#include <gcu/macros.h>
#include <gtk/gtk.h>

namespace gccv {

class Client;
class Group;
class Item;

class CanvasPrivate;
class Canvas
{
friend class CanvasPrivate;
public:
        Canvas (Client *client);
        virtual ~Canvas();

        Item *GetItemAt (double x, double y);
        GtkWidget *GetWidget () {return m_Widget;}
        void Invalidate (double x0, double y0, double x1, double y1);
        void SetBackgroundColor (GOColor color);
        void SetZoom (double zoom);
        void Render (cairo_t *cr, bool is_vector);

private:
        GtkWidget *m_Widget;
        Client *m_Client;
        bool m_Dragging;

GCU_RO_PROP (double, Zoom)
GCU_RO_PROP (Group *, Root)
GCU_PROP (double, Gap)
GCU_PROP (GOColor, Color)
GCU_RO_PROP (GOColor, BackgroundColor)
GCU_RO_PROP (unsigned, LastEventState)
};

}

#endif  //       GCCV_CANVAS_H