cantor/src/worksheetview.h

0001 /*
0002     SPDX-License-Identifier: GPL-2.0-or-later
0003     SPDX-FileCopyrightText: 2012 Martin Kuettler <martin.kuettler@gmail.com>
0004     SPDX-FileCopyrightText: 2018-2022 Alexander Semke <alexander.semke@web.de>
0005 */
0006
0007 #ifndef WORKSHEETVIEW_H
0008 #define WORKSHEETVIEW_H
0009
0010 #include <QGraphicsView>
0011
0012 class QParallelAnimationGroup;
0013 class QPropertyAnimation;
0014
0015 class Worksheet;
0016
0017 class WorksheetView : public QGraphicsView
0018 {
0019   Q_OBJECT
0020 public:
0021     WorksheetView(Worksheet*, QWidget*);
0022
0023     void makeVisible(const QRectF&);
0024     bool isVisible(const QRectF&) const;
0025     bool isAtEnd() const;
0026     void scrollToEnd() const;
0027     void scrollBy(int dy);
0028     void scrollTo(int y);
0029
0030     QPoint viewCursorPos() const;
0031     QPointF sceneCursorPos() const;
0032     QRectF viewRect() const;
0033     qreal scaleFactor() const;
0034     void setScaleFactor(qreal scale, bool emitSignal = true);
0035     void updateSceneSize();
0036
0037 Q_SIGNALS:
0038     void viewRectChanged(QRectF) const;
0039     void scaleFactorChanged(double scale);
0040
0041 public Q_SLOTS:
0042     void zoomIn();
0043     void zoomOut();
0044     void actualSize();
0045     void endAnimation();
0046     void sceneRectChanged(const QRectF&) const;
0047     void sendViewRectChange() const;
0048
0049 private:
0050     void resizeEvent(QResizeEvent*) override;
0051     void focusInEvent(QFocusEvent*) override;
0052     void focusOutEvent(QFocusEvent*) override;
0053     void wheelEvent(QWheelEvent*) override;
0054
0055     void zoom(int);
0056     void scalingTime();
0057     void animFinished();
0058
0059     qreal m_scale = 1.;
0060     int m_numScheduledScalings{0};
0061     QParallelAnimationGroup* m_animation{nullptr};
0062     QPropertyAnimation* m_hAnimation{nullptr};
0063     QPropertyAnimation* m_vAnimation{nullptr};
0064     Worksheet* m_worksheet;
0065 };
0066
0067 #endif //WORKSHEETVIEW_H