kdganttgraphicsview.h

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/****************************************************************************
**
** This file is part of the KD Chart library.
**
** SPDX-FileCopyrightText: 2001 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
**
** SPDX-License-Identifier: MIT
**
****************************************************************************/
 
#ifndef KDGANTTGRAPHICSVIEW_H
#define KDGANTTGRAPHICSVIEW_H
 
#include <QGraphicsView>
#include <QPrinter>
 
#include "kdganttglobal.h"
 
QT_BEGIN_NAMESPACE
class QModelIndex;
class QAbstractItemModel;
class QAbstractProxyModel;
class QItemSelectionModel;
QT_END_NAMESPACE
 
namespace KDGantt {
class AbstractRowController;
class AbstractGrid;
class GraphicsItem;
class ConstraintModel;
class ItemDelegate;
 
class KDGANTT_EXPORT GraphicsView : public QGraphicsView
{
    Q_OBJECT
    KDGANTT_DECLARE_PRIVATE_BASE_POLYMORPHIC(GraphicsView)
 
    Q_PROPERTY(bool readOnly READ isReadOnly WRITE setReadOnly)
public:
    explicit GraphicsView(QWidget *parent = nullptr);
    ~GraphicsView() override;
 
    QAbstractItemModel *model() const;
    QAbstractProxyModel *summaryHandlingModel() const;
    ConstraintModel *constraintModel() const;
    QModelIndex rootIndex() const;
    QItemSelectionModel *selectionModel() const;
    AbstractRowController *rowController() const;
    AbstractGrid *grid() const;
    ItemDelegate *itemDelegate() const;
 
    bool isReadOnly() const;
 
    void setHeaderContextMenuPolicy(Qt::ContextMenuPolicy);
    Qt::ContextMenuPolicy headerContextMenuPolicy() const;
 
    QModelIndex indexAt(const QPoint &pos) const;
 
    virtual void addConstraint(const QModelIndex &from,
                               const QModelIndex &to,
                               Qt::KeyboardModifiers modifiers);
 
    void clearItems();
    void updateRow(const QModelIndex &);
    void updateScene();
 
public Q_SLOTS:
    void updateSceneRect();
 
public:
    void deleteSubtree(const QModelIndex &);
 
    void print(QPrinter *printer, bool drawRowLabels = true, bool drawColumnLabels = true);
    void print(QPrinter *printer, qreal start, qreal end, bool drawRowLabels = true, bool drawColumnLabels = true);
    void print(QPainter *painter, const QRectF &target = QRectF(), bool drawRowLabels = true, bool drawColumnLabels = true);
    void print(QPainter *painter, qreal start, qreal end,
               const QRectF &target = QRectF(), bool drawRowLabels = true, bool drawColumnLabels = true);
 
public Q_SLOTS:
    void setModel(QAbstractItemModel *);
    void setSummaryHandlingModel(QAbstractProxyModel *model);
    void setConstraintModel(ConstraintModel *);
    void setRootIndex(const QModelIndex &);
    void setSelectionModel(QItemSelectionModel *);
    void setRowController(AbstractRowController *);
    void setGrid(AbstractGrid *);
    void setItemDelegate(ItemDelegate *delegate);
    void setReadOnly(bool);
 
Q_SIGNALS:
    void activated(const QModelIndex &index);
    void clicked(const QModelIndex &index);
    void qrealClicked(const QModelIndex &index);
    void entered(const QModelIndex &index);
    void pressed(const QModelIndex &index);
    void headerContextMenuRequested(const QPoint &pt);
 
protected:
    /*reimp*/ void resizeEvent(QResizeEvent *) override;
 
private:
    friend class View;
 
    GraphicsItem *createItem(ItemType type) const;
};
}
 
#endif /* KDGANTTGRAPHICSVIEW_H */