kdgantt/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 used under the terms of the GNU General Public
   7  ** License versions 2.0 or 3.0 as published by the Free Software
   8  ** Foundation and appearing in the files LICENSE.GPL2 and LICENSE.GPL3
   9  ** included in the packaging of this file.  Alternatively you may (at
  10  ** your option) use any later version of the GNU General Public
  11  ** License if such license has been publicly approved by
  12  ** Klarälvdalens Datakonsult AB (or its successors, if any).
  13  **
  14  ** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
  15  ** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
  16  ** A PARTICULAR PURPOSE. Klarälvdalens Datakonsult AB reserves all rights
  17  ** not expressly granted herein.
  18  **
  19  ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
  20  ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  21  **
  22  **********************************************************************/
  23 #ifndef KDGANTTGRAPHICSVIEW_H
  24 #define KDGANTTGRAPHICSVIEW_H
  25
  26 #include <QGraphicsView>
  27
  28 #include "kdganttglobal.h"
  29
  30 class QModelIndex;
  31 class QAbstractItemModel;
  32 class QAbstractProxyModel;
  33 class QItemSelectionModel;
  34
  35 namespace KDGantt {
  36     class AbstractRowController;
  37     class AbstractGrid;
  38     class GraphicsItem;
  39     class ConstraintModel;
  40     class ItemDelegate;
  41
  42     class KDGANTT_EXPORT GraphicsView : public QGraphicsView {
  43         Q_OBJECT
  44         KDGANTT_DECLARE_PRIVATE_BASE_POLYMORPHIC(GraphicsView)
  45
  46         Q_PROPERTY( bool readOnly READ isReadOnly WRITE setReadOnly )
  47
  48         Q_PRIVATE_SLOT( d, void slotGridChanged() )
  49         Q_PRIVATE_SLOT( d, void slotHorizontalScrollValueChanged( int ) )
  50         /* slots for QAbstractItemModel signals */
  51         Q_PRIVATE_SLOT( d, void slotColumnsInserted( const QModelIndex& parent,  int start, int end ) )
  52         Q_PRIVATE_SLOT( d, void slotColumnsRemoved( const QModelIndex& parent,  int start, int end ) )
  53         Q_PRIVATE_SLOT( d, void slotDataChanged( const QModelIndex& topLeft, const QModelIndex& bottomRight ) )
  54         Q_PRIVATE_SLOT( d, void slotLayoutChanged() )
  55         Q_PRIVATE_SLOT( d, void slotModelReset() )
  56         Q_PRIVATE_SLOT( d, void slotRowsInserted( const QModelIndex& parent,  int start, int end ) )
  57         Q_PRIVATE_SLOT( d, void slotRowsAboutToBeRemoved( const QModelIndex& parent,  int start, int end ) )
  58         Q_PRIVATE_SLOT( d, void slotRowsRemoved( const QModelIndex& parent,  int start, int end ) )
  59
  60         Q_PRIVATE_SLOT( d, void slotItemClicked( const QModelIndex& idx ) )
  61         Q_PRIVATE_SLOT( d, void slotItemDoubleClicked( const QModelIndex& idx ) )
  62     public:
  63
  64         explicit GraphicsView( QWidget* parent=0 );
  65         virtual ~GraphicsView();
  66
  67         QAbstractItemModel* model() const;
  68         QAbstractProxyModel* summaryHandlingModel() const;
  69         ConstraintModel* constraintModel() const;
  70         QModelIndex rootIndex() const;
  71         QItemSelectionModel* selectionModel() const;
  72         AbstractRowController* rowController() const;
  73         AbstractGrid* grid() const;
  74         ItemDelegate* itemDelegate() const;
  75
  76         bool isReadOnly() const;
  77
  78         QModelIndex indexAt( const QPoint& pos ) const;
  79
  80         virtual void addConstraint( const QModelIndex& from,
  81                                     const QModelIndex& to,
  82                                     Qt::KeyboardModifiers modifiers );
  83
  84         void clearItems();
  85         void updateRow( const QModelIndex& );
  86         void updateScene();
  87         void updateSceneRect();
  88         void deleteSubtree( const QModelIndex& );
  89
  90         void print( QPainter* painter, const QRectF& target = QRectF(), const QRectF& source = QRectF(), bool drawRowLabels=true, bool drawHeader=true );
  91         QRectF printRect(bool drawRowLabels=true );
  92         void renderHeader( QPainter* painter, const QRectF& target, const QRectF& source, Qt::AspectRatioMode aspectRatioMode = Qt::KeepAspectRatio );
  93         qreal headerHeight() const;
  94
  95     public Q_SLOTS:
  96         void setModel( QAbstractItemModel* );
  97         void setSummaryHandlingModel( QAbstractProxyModel* model );
  98         void setConstraintModel( ConstraintModel* );
  99         void setRootIndex( const QModelIndex& );
 100         void setSelectionModel( QItemSelectionModel* );
 101         void setRowController( AbstractRowController* );
 102         void setGrid( AbstractGrid* );
 103         void setItemDelegate( ItemDelegate* delegate );
 104         void setReadOnly( bool );
 105
 106     Q_SIGNALS:
 107         void activated( const QModelIndex & index );
 108         void clicked( const QModelIndex & index );
 109         void doubleClicked( const QModelIndex & index );
 110         void entered( const QModelIndex & index );
 111         void pressed( const QModelIndex & index );
 112
 113     protected:
 114         /*reimp*/void resizeEvent( QResizeEvent* );
 115     private:
 116         friend class View;
 117
 118         GraphicsItem* createItem( ItemType type ) const;
 119     };
 120 }
 121
 122 #endif /* KDGANTTGRAPHICSVIEW_H */
 123