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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#pragma once
#include "layoutitem.h"
#include <QGraphicsView>
#include <QPointer>
QT_FORWARD_DECLARE_CLASS(QImage)
namespace ScxmlEditor {
namespace PluginInterface {
class ShapeProvider;
class GraphicsScene;
class ScxmlUiFactory;
class ScxmlDocument;
} // namespace PluginInterface
namespace Common {
class GraphicsView : public QGraphicsView
{
Q_OBJECT
public:
explicit GraphicsView(QWidget *parent = nullptr);
void setGraphicsScene(PluginInterface::GraphicsScene *scene);
double minZoomValue() const;
double maxZoomValue() const;
void setDrawingEnabled(bool enabled);
void setUiFactory(PluginInterface::ScxmlUiFactory *factory);
void setDocument(PluginInterface::ScxmlDocument *document);
void moveToPoint(const QPointF &p);
void fitSceneToView();
void zoomIn();
void zoomOut();
void zoomTo(int value);
void zoomToItem(QGraphicsItem *item);
void setPanning(bool pan);
void magnifierClicked(double zoomLevel, const QPointF &p);
QImage grabView();
signals:
void viewChanged(const QPolygonF &mainView);
void zoomPercentChanged(int value);
void panningChanged(bool panning);
void magnifierChanged(bool magnifier);
protected:
void wheelEvent(QWheelEvent *event) override;
void resizeEvent(QResizeEvent *event) override;
void keyPressEvent(QKeyEvent *event) override;
void keyReleaseEvent(QKeyEvent *event) override;
void dragEnterEvent(QDragEnterEvent *event) override;
void dragMoveEvent(QDragMoveEvent *event) override;
void dropEvent(QDropEvent *event) override;
void paintEvent(QPaintEvent *event) override;
private:
void centerToItem(QGraphicsItem *item);
void sceneRectHasChanged(const QRectF &r);
void updateView();
void initLayoutItem();
bool m_drawingEnabled = true;
double m_minZoomValue = 0.1;
double m_maxZoomValue = 1.5;
PluginInterface::ShapeProvider *m_shapeProvider = nullptr;
QPointer<PluginInterface::ScxmlDocument> m_document;
QPointer<PluginInterface::LayoutItem> m_layoutItem;
};
} // namespace Common
} // namespace ScxmlEditor
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