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// Copyright (C) 2016 Jochen Becher
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#pragma once
#include <QObject>
#include "qmt/infrastructure/qmt_global.h"
#include <QList>
#include <QHash>
#include <QSet>
#include <QRectF>
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 ObjectItem;
class QMT_EXPORT DiagramSceneModel : public QObject
{
Q_OBJECT
class CreationVisitor;
class UpdateVisitor;
class OriginItem;
class SelectionStatus;
friend class UpdateVisitor;
friend class DiagramGraphicsScene;
public:
enum CollidingMode {
CollidingInnerItems,
CollidingItems,
CollidingOuterItems
};
explicit DiagramSceneModel(QObject *parent = nullptr);
~DiagramSceneModel() override;
signals:
void diagramSceneActivated(const qmt::MDiagram *diagram);
void selectionHasChanged(const qmt::MDiagram *diagram);
void sceneRectChanged(const QRectF &sceneRect);
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;
QRectF sceneRect() const;
bool hasSelection() const;
bool hasMultiObjectsSelection() const;
DSelection selectedElements() const;
DElement *findTopmostElement(const QPointF &scenePos) const;
DObject *findTopmostObject(const QPointF &scenePos) const;
ObjectItem *findTopmostObjectItem(const QPointF &scenePos) const;
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;
const QSet<QGraphicsItem *> selectedItems() const { return m_selectedItems; }
DElement *element(QGraphicsItem *item) const;
bool isElementEditable(const DElement *element) const;
bool isInFrontOf(const QGraphicsItem *frontItem, const QGraphicsItem *backItem);
void selectAllElements();
void selectElement(DElement *element);
void editElement(DElement *element);
void copyToClipboard();
bool exportImage(const QString &fileName, bool selectedElements);
bool exportPdf(const QString &fileName, bool selectedElements);
bool exportSvg(const QString &fileName, bool selectedElements);
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();
void saveSelectionStatusBeforeExport(bool exportSelectedElements, SelectionStatus *status);
void restoreSelectedStatusAfterExport(const SelectionStatus &status);
void recalcSceneRectSize();
QGraphicsItem *createGraphicsItem(DElement *element);
void updateGraphicsItem(QGraphicsItem *item, DElement *element);
void deleteGraphicsItem(QGraphicsItem *item, DElement *element);
void updateFocusItem(const QSet<QGraphicsItem *> &selectedItems);
void unsetFocusItem();
enum Busy {
NotBusy,
ResetDiagram,
UpdateElement,
InsertElement,
RemoveElement
};
DiagramController *m_diagramController = nullptr;
DiagramSceneController *m_diagramSceneController = nullptr;
StyleController *m_styleController = nullptr;
StereotypeController *m_stereotypeController = nullptr;
MDiagram *m_diagram = nullptr;
DiagramGraphicsScene *m_graphicsScene = nullptr;
LatchController *m_latchController = nullptr;
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 = NotBusy;
OriginItem *m_originItem = nullptr;
QGraphicsItem *m_focusItem = nullptr;
QRectF m_sceneRect;
QList<Uid> m_relationEndsUid;
};
} // namespace qmt
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