kdgantt2/kdganttgraphicsview.h

   1 /****************************************************************************
   2  ** Copyright (C) 2001-2006 Klarälvdalens Datakonsult AB.  All rights reserved.
   3  **
   4  ** This file is part of the KD Gantt library.
   5  **
   6  ** This file may be distributed and/or modified under the terms of the
   7  ** GNU General Public License version 2 as published by the Free Software
   8  ** Foundation and appearing in the file LICENSE.GPL included in the
   9  ** packaging of this file.
  10  **
  11  ** Licensees holding valid commercial KD Gantt licenses may use this file in
  12  ** accordance with the KD Gantt Commercial License Agreement provided with
  13  ** the Software.
  14  **
  15  ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
  16  ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  17  **
  18  ** See http://www.kdab.net/kdgantt for
  19  **   information about KD Gantt Commercial License Agreements.
  20  **
  21  ** Contact info@kdab.net if any conditions of this
  22  ** licensing are not clear to you.
  23  **
  24  **********************************************************************/
  25 #ifndef KDGANTTGRAPHICSVIEW_H
  26 #define KDGANTTGRAPHICSVIEW_H
  27
  28 #include <QGraphicsView>
  29
  30 #include "kdganttglobal.h"
  31
  32 class QModelIndex;
  33 class QAbstractItemModel;
  34 class QAbstractProxyModel;
  35 class QItemSelectionModel;
  36
  37 namespace KDGantt {
  38     class AbstractRowController;
  39     class AbstractGrid;
  40     class GraphicsItem;
  41     class ConstraintModel;
  42     class ItemDelegate;
  43
  44     class KDGANTT_EXPORT GraphicsView : public QGraphicsView {
  45         Q_OBJECT
  46         KDGANTT_DECLARE_PRIVATE_BASE_POLYMORPHIC(GraphicsView)
  47
  48         Q_PROPERTY( bool readOnly READ isReadOnly WRITE setReadOnly )
  49
  50         Q_PRIVATE_SLOT( d, void slotGridChanged() )
  51         Q_PRIVATE_SLOT( d, void slotHorizontalScrollValueChanged( int ) )
  52         Q_PRIVATE_SLOT( d, void slotHeaderContextMenuRequested( const QPoint& ) )
  53         /* slots for QAbstractItemModel signals */
  54         Q_PRIVATE_SLOT( d, void slotColumnsInserted( const QModelIndex& parent,  int start, int end ) )
  55         Q_PRIVATE_SLOT( d, void slotColumnsRemoved( const QModelIndex& parent,  int start, int end ) )
  56         Q_PRIVATE_SLOT( d, void slotDataChanged( const QModelIndex& topLeft, const QModelIndex& bottomRight ) )
  57         Q_PRIVATE_SLOT( d, void slotLayoutChanged() )
  58         Q_PRIVATE_SLOT( d, void slotModelReset() )
  59         Q_PRIVATE_SLOT( d, void slotRowsInserted( const QModelIndex& parent,  int start, int end ) )
  60         Q_PRIVATE_SLOT( d, void slotRowsAboutToBeRemoved( const QModelIndex& parent,  int start, int end ) )
  61         Q_PRIVATE_SLOT( d, void slotRowsRemoved( const QModelIndex& parent,  int start, int end ) )
  62
  63         Q_PRIVATE_SLOT( d, void slotItemClicked( const QModelIndex& idx ) )
  64         Q_PRIVATE_SLOT( d, void slotItemDoubleClicked( const QModelIndex& idx ) )
  65     public:
  66
  67         explicit GraphicsView( QWidget* parent=0 );
  68         virtual ~GraphicsView();
  69
  70         QAbstractItemModel* model() const;
  71         QAbstractProxyModel* summaryHandlingModel() const;
  72         ConstraintModel* constraintModel() const;
  73         QModelIndex rootIndex() const;
  74         QItemSelectionModel* selectionModel() const;
  75         AbstractRowController* rowController() const;
  76         AbstractGrid* grid() const;
  77         ItemDelegate* itemDelegate() const;
  78
  79         bool isReadOnly() const;
  80
  81         void setHeaderContextMenuPolicy( Qt::ContextMenuPolicy );
  82         Qt::ContextMenuPolicy headerContextMenuPolicy() const;
  83
  84         QModelIndex indexAt( const QPoint& pos ) const;
  85
  86         virtual void addConstraint( const QModelIndex& from,
  87                                     const QModelIndex& to,
  88                                     Qt::KeyboardModifiers modifiers );
  89
  90         void clearItems();
  91         void updateRow( const QModelIndex& );
  92         void updateScene();
  93
  94     public Q_SLOTS:
  95         void updateSceneRect();
  96
  97     public:
  98         void deleteSubtree( const QModelIndex& );
  99
 100         void print( QPrinter* printer, bool drawRowLabels = true );
 101         void print( QPrinter* printer, qreal start, qreal end, bool drawRowLabels = true );
 102         void print( QPainter* painter, const QRectF& target = QRectF(), bool drawRowLabels = true );
 103         void print( QPainter* painter, qreal start, qreal end,
 104                     const QRectF& target = QRectF(), bool drawRowLabels = true );
 105
 106     public Q_SLOTS:
 107         void setModel( QAbstractItemModel* );
 108         void setSummaryHandlingModel( QAbstractProxyModel* model );
 109         void setConstraintModel( ConstraintModel* );
 110         void setRootIndex( const QModelIndex& );
 111         void setSelectionModel( QItemSelectionModel* );
 112         void setRowController( AbstractRowController* );
 113         void setGrid( AbstractGrid* );
 114         void setItemDelegate( ItemDelegate* delegate );
 115         void setReadOnly( bool );
 116
 117     Q_SIGNALS:
 118         void activated( const QModelIndex & index );
 119         void clicked( const QModelIndex & index );
 120         void doubleClicked( const QModelIndex & index );
 121         void entered( const QModelIndex & index );
 122         void pressed( const QModelIndex & index );
 123         void headerContextMenuRequested( const QPoint& pt );
 124
 125     protected:
 126         /*reimp*/void resizeEvent( QResizeEvent* );
 127     private:
 128         friend class View;
 129
 130         GraphicsItem* createItem( ItemType type ) const;
 131     };
 132 }
 133
 134 #endif /* KDGANTTGRAPHICSVIEW_H */
 135