MapBox.h

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/***************************************************************************
 *   Copyright (C) 2006-2008 by Antonello Lobianco                         *
 *   http://regmas.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.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
#ifndef MAPBOX_H
#define MAPBOX_H

#include <QColor> //TODO del
#include <QImage> //TODO del

#include <QWidget>
#include <QPixmap>


using namespace std;


class MapBox : public QWidget {
    Q_OBJECT

public:
                        MapBox(QWidget *parent = 0);
    int                 getLayerIndex(QString layerName_h=""); 

public slots:
    void                updatePixel(QString layerName_h, int x_h, int y_h, QColor color_h);
    void                updateImage(QString layerName_h, const QImage& image_h);
    void                switchToLayer(QString layerName_h); 
    void                addLayer(QString layerName_h);
    void                fitInWindow();
    void                zoom(double zoomFactor);
    void                scroll(int deltaX, int deltaY);

signals:
    void                queryRequestOnPx(int px_ID, int currentLayerIndex, bool newRequest);

private:
    void                updatePixmap(const QImage &image, bool reFit=false);
    void                paintEvent(QPaintEvent *event); 
    void                prepareQueryEvent(QPoint click);
    void                keyPressEvent(QKeyEvent *event);
    void                wheelEvent(QWheelEvent *event);
    void                mousePressEvent(QMouseEvent *event);
    void                mouseMoveEvent(QMouseEvent *event);
    vector <QImage>                 layersVector; 
    vector <QString>            layersNameVector; 
    QImage                          currentLayer;
    QString                     currentLayerName;
    QPoint lastDragPos;
    double sx1, sy1, sx2, sy2; 
    double dx1, dy1, dx2, dy2; 

};

#endif