/*
 * TopView.h
 * 
 * Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
 * 
 * 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, see <http://www.gnu.org/licenses/>.
 */

#ifndef ZOOMEDIT_VIEW_TOPVIEW_H_
#define ZOOMEDIT_VIEW_TOPVIEW_H_

#include "View.h"

#include <vmmlib/vector.hpp>


namespace ZoomEdit {

class Instance;

namespace Data {
class Level;
class Room;
}

namespace View {

class TopView : public View {
  private:
    class Edge {
      public:
        const vmml::vec3f *v1, *v2;
        
        Edge(const vmml::vec3f *v10, const vmml::vec3f *v20)
        : v1(v10), v2(v20) {};
        bool operator<(const Edge &e) const;
    };
    
    Instance *instance;
    
    float viewWidth, viewHeight;
    
    float xCenter, yCenter;
    
    int zoomLevel;
    float scale;
    
    void drawGrid();
    
  public:
    TopView(Instance *instance0)
    : instance(instance0), viewWidth(0), viewHeight(0), xCenter(0), yCenter(0), zoomLevel(0), scale(100) {}
    
    Instance* getInstance() {return instance;}

    float getWidth() const {return viewWidth;}
    float getHeight() const {return viewHeight;}
    
    float getXCenter() const {return xCenter;}
    void setXCenter(float xCenter0) {xCenter = xCenter0; signalUpdate().emit();}
    float getYCenter() const {return yCenter;}
    void setYCenter(float yCenter0) {yCenter = yCenter0; signalUpdate().emit();}
    
    float getScale() const {return scale;}
    
    virtual void init();
    virtual void resize(float width, float height);
    
    virtual void render();
    
    virtual void zoom(int zoom, float x, float y);
    virtual void move(float x, float y, unsigned int state);
    virtual void click(float x, float y, unsigned int button);
    
    static void renderRoom(Data::Room *room, bool selected = false);
};

}
}

#endif /*ZOOMEDIT_VIEW_TOPVIEW_H_*/