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/*
TikZiT - a GUI diagram editor for TikZ
Copyright (C) 2018 Aleks Kissinger
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/>.
*/
/*!
* Display a Graph, and manage any user input that purely changes the view (e.g. Zoom). This
* serves as the view in the MVC (TikzDocument, TikzView, TikzScene).
*/
#ifndef TIKZVIEW_H
#define TIKZVIEW_H
#include <QObject>
#include <QWidget>
#include <QGraphicsView>
#include <QPainter>
#include <QGraphicsItem>
#include <QStyleOptionGraphicsItem>
#include <QRectF>
#include <QMouseEvent>
class TikzView : public QGraphicsView
{
Q_OBJECT
public:
explicit TikzView(QWidget *parent = 0);
public slots:
void zoomIn();
void zoomOut();
void setScene(QGraphicsScene *scene);
protected:
void drawBackground(QPainter *painter, const QRectF &rect) override;
void wheelEvent(QWheelEvent *event) override;
private:
float _scale;
};
#endif // TIKZVIEW_H
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