/*

* This file is part of the GreasePad distribution (https://github.com/FraunhoferIOSB/GreasePad).

* Copyright (c) 2022 Jochen Meidow, Fraunhofer IOSB

*

* 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 <https://www.gnu.org/licenses/>.

*/

#ifndef MAINVIEW_H

#define MAINVIEW_H

#include <QAction>

#include <QGraphicsView>

#include <QDebug>

// #include <QStatusBar>

#include <memory>

#include "global.h"

namespace GUI {

//! Graphics view

class MainView :public QGraphicsView

{

Q_OBJECT

public:

MainView( QGraphicsScene *scene, QWidget *parent); //!< Value constructor

~MainView() override { //qDebug() << Q_FUNC_INFO;

}

std::unique_ptr<QAction> actionCopyScreenshotToClipboard{}; //!< Copy screenshot to clipboard

std::unique_ptr<QAction> actionCopySvgToClipboard{}; //!< Copy scalable vector graphics to clipboard

std::unique_ptr<QAction> actionCopyPdfToClipboard{}; //!< Copy portable document format to clipboard

std::unique_ptr<QAction> actionToggleShowBackgroundTiles; //!< Toggle visibility of background tiles

std::unique_ptr<QAction> actionZoomIn; //!< Zoom in [+]

std::unique_ptr<QAction> actionZoomOut; //!< Zoom out [-]

protected:

void wheelEvent( QWheelEvent *event) override; //!< Zoom via mouse wheel

void drawForeground( QPainter *painter, const QRectF &) override; //!< Plot the organization name

private:

const double lod_max = 100.0;

const double lod_min = 0.01;

const double zoom_in = 1.25;

const double zoom_out = 1./zoom_in;

void createActions();

void establishConnections();

void slotToggleShowBackgroundTiles();

void slotZoomIn() { scale( zoom_in, zoom_in ); }

void slotZoomOut() { scale( zoom_out, zoom_out); }

void slotCopyScreenshotToClipboard();

void slotCopySvgToClipboard();

void slotCopyPdfToClipboard();

static bool s_showBackgroundTiles;

Q_SIGNALS:

void signalShowStatus( const QString & s); //!< Send message to status bar

};

} // namespace GUI

#endif // MAINVIEW_H