#ifndef TAGVIEW_H
#define TAGVIEW_H

#include "sqlitebackend.h"
#include "tagscene.h"

#include <QGraphicsView>
#include <QTimer>


class TagView : public QGraphicsView
{
    Q_OBJECT

public:
    TagView(QWidget *parent=nullptr);
    virtual ~TagView();

    TagScene *scene() { return &m_scene; }

public slots:
    void zoomToFit();
    void setZoom(qreal zoom);
    void zoomIn(qreal delta=120);
    void zoomOut(qreal delta=120) { zoomIn(-delta); }
    void rotate(int angle);

    void setProject(SQLiteSaveFile *proj);

signals:
    void tagDoubleClicked(const Tag &tag);

protected:
    void wheelEvent(QWheelEvent *evt) override;
    void scrollContentsBy(int dx, int dy) override;
    void keyPressEvent(QKeyEvent *event) override;
    void keyReleaseEvent(QKeyEvent *event) override;
    void focusInEvent(QFocusEvent *event) override;

private slots:
    void saveCenter();

private:
    void restoreViewport();

    QTimer saveCenterTimer;
    bool were_done = false;
    TagScene m_scene;
    SQLiteSaveFile *m_proj = nullptr;
    int rotation;
    double zoom;
};

#endif // TAGVIEW_H