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/****************************************************************************
**
** Copyright (C) 2016 Jochen Becher
** 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 <QObject>
#include "qmt/infrastructure/qmt_global.h"
#include <QList>
#include <QHash>
#include <QSet>
QT_BEGIN_NAMESPACE
class QGraphicsItem;
class QPointF;
class QGraphicsScene;
class QGraphicsSceneMouseEvent;
class QKeyEvent;
QT_END_NAMESPACE
namespace qmt {
class DiagramGraphicsScene;
class LatchController;
class Uid;
class DiagramController;
class DiagramSceneController;
class StereotypeController;
class StyleController;
class DSelection;
class MDiagram;
class DElement;
class DObject;
class QMT_EXPORT DiagramSceneModel : public QObject
{
Q_OBJECT
class CreationVisitor;
class UpdateVisitor;
class OriginItem;
friend class UpdateVisitor;
friend class DiagramGraphicsScene;
public:
enum CollidingMode {
CollidingInnerItems,
CollidingItems,
CollidingOuterItems
};
explicit DiagramSceneModel(QObject *parent = 0);
~DiagramSceneModel() override;
signals:
void diagramSceneActivated(const MDiagram *diagram);
void selectionHasChanged(const MDiagram *diagram);
public:
DiagramController *diagramController() const { return m_diagramController; }
void setDiagramController(DiagramController *diagramController);
DiagramSceneController *diagramSceneController() const { return m_diagramSceneController; }
void setDiagramSceneController(DiagramSceneController *diagramSceneController);
StyleController *styleController() const { return m_styleController; }
void setStyleController(StyleController *styleController);
StereotypeController *stereotypeController() const { return m_stereotypeController; }
void setStereotypeController(StereotypeController *stereotypeController);
MDiagram *diagram() const { return m_diagram; }
void setDiagram(MDiagram *diagram);
QGraphicsScene *graphicsScene() const;
bool hasSelection() const;
bool hasMultiObjectsSelection() const;
DSelection selectedElements() const;
DElement *findTopmostElement(const QPointF &scenePos) const;
DObject *findTopmostObject(const QPointF &scenePos) const;
QList<QGraphicsItem *> graphicsItems() const { return m_graphicsItems; }
QGraphicsItem *graphicsItem(DElement *element) const;
QGraphicsItem *graphicsItem(const Uid &uid) const;
QGraphicsItem *focusItem() const { return m_focusItem; }
bool isSelectedItem(QGraphicsItem *item) const;
QSet<QGraphicsItem *> selectedItems() const { return m_selectedItems; }
DElement *element(QGraphicsItem *item) const;
bool isElementEditable(const DElement *element) const;
void selectAllElements();
void selectElement(DElement *element);
void editElement(DElement *element);
void copyToClipboard();
bool exportImage(const QString &fileName);
bool exportPdf(const QString &fileName);
bool exportSvg(const QString &fileName);
void selectItem(QGraphicsItem *item, bool multiSelect);
void moveSelectedItems(QGraphicsItem *grabbedItem, const QPointF &delta);
void alignSelectedItemsPositionOnRaster();
void onDoubleClickedItem(QGraphicsItem *item);
QList<QGraphicsItem *> collectCollidingObjectItems(const QGraphicsItem *item,
CollidingMode collidingMode) const;
private:
void sceneActivated();
void keyPressEvent(QKeyEvent *event);
void keyReleaseEvent(QKeyEvent *event);
void mousePressEvent(QGraphicsSceneMouseEvent *event);
void mousePressEventReparenting(QGraphicsSceneMouseEvent *event);
void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
void mouseMoveEventReparenting(QGraphicsSceneMouseEvent *event);
void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
void mouseReleaseEventReparenting(QGraphicsSceneMouseEvent *event);
void onBeginResetAllDiagrams();
void onEndResetAllDiagrams();
void onBeginResetDiagram(const MDiagram *diagram);
void onEndResetDiagram(const MDiagram *diagram);
void onBeginUpdateElement(int row, const MDiagram *diagram);
void onEndUpdateElement(int row, const MDiagram *diagram);
void onBeginInsertElement(int row, const MDiagram *diagram);
void onEndInsertElement(int row, const MDiagram *diagram);
void onBeginRemoveElement(int row, const MDiagram *diagram);
void onEndRemoveElement(int row, const MDiagram *diagram);
void onSelectionChanged();
void clearGraphicsScene();
void removeExtraSceneItems();
void addExtraSceneItems();
QGraphicsItem *createGraphicsItem(DElement *element);
void updateGraphicsItem(QGraphicsItem *item, DElement *element);
void deleteGraphicsItem(QGraphicsItem *item, DElement *element);
void updateFocusItem(const QSet<QGraphicsItem *> &selectedItems);
void unsetFocusItem();
bool isInFrontOf(const QGraphicsItem *frontItem, const QGraphicsItem *backItem);
enum Busy {
NotBusy,
ResetDiagram,
UpdateElement,
InsertElement,
RemoveElement
};
DiagramController *m_diagramController;
DiagramSceneController *m_diagramSceneController;
StyleController *m_styleController;
StereotypeController *m_stereotypeController;
MDiagram *m_diagram;
DiagramGraphicsScene *m_graphicsScene;
LatchController *m_latchController;
QList<QGraphicsItem *> m_graphicsItems;
QHash<const QGraphicsItem *, DElement *> m_itemToElementMap;
QHash<const DElement *, QGraphicsItem *> m_elementToItemMap;
QSet<QGraphicsItem *> m_selectedItems;
QSet<QGraphicsItem *> m_secondarySelectedItems;
Busy m_busyState;
OriginItem *m_originItem;
QGraphicsItem *m_focusItem;
};
} // namespace qmt
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