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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#pragma once
#include <QGraphicsView>
namespace QmlDesigner {
class FormEditorGraphicsView : public QGraphicsView
{
Q_OBJECT
signals:
void zoomChanged(double zoom);
void zoomIn();
void zoomOut();
public:
explicit FormEditorGraphicsView(QWidget *parent = nullptr);
void setRootItemRect(const QRectF &rect);
QRectF rootItemRect() const;
void activateCheckboardBackground();
void activateColoredBackground(const QColor &color);
void drawBackground(QPainter *painter, const QRectF &rect) override;
void setZoomFactor(double zoom);
void frame(const QRectF &bbox);
protected:
bool eventFilter(QObject *watched, QEvent *event) override;
void wheelEvent(QWheelEvent *event) override;
void mousePressEvent(QMouseEvent *event) override;
void mouseReleaseEvent(QMouseEvent *event) override;
void keyPressEvent(QKeyEvent *event) override;
void keyReleaseEvent(QKeyEvent *event) override;
private:
enum Panning { NotStarted, MouseWheelStarted, SpaceKeyStarted };
void startPanning(QEvent *event);
void stopPanning(QEvent *event);
Panning m_isPanning = Panning::NotStarted;
QPoint m_panningStartPosition;
QRectF m_rootItemRect;
};
} // namespace QmlDesigner
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