kdgantt2/kdganttgraphicsscene.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 KDGANTTGRAPHICSSCENE_H
  26 #define KDGANTTGRAPHICSSCENE_H
  27
  28 #include <QDateTime>
  29 #include <QList>
  30 #include <QGraphicsScene>
  31 #include <QModelIndex>
  32
  33 #include "kdganttglobal.h"
  34
  35 class QAbstractProxyModel;
  36 class QItemSelectionModel;
  37 class QPrinter;
  38
  39 namespace KDGantt {
  40     class AbstractGrid;
  41     class AbstractRowController;
  42     class GraphicsItem;
  43     class Constraint;
  44     class ConstraintModel;
  45     class ConstraintGraphicsItem;
  46     class ItemDelegate;
  47
  48     class GraphicsScene : public QGraphicsScene {
  49         Q_OBJECT
  50         KDGANTT_DECLARE_PRIVATE_BASE_POLYMORPHIC( GraphicsScene )
  51     public:
  52         explicit GraphicsScene( QObject* parent=0 );
  53         virtual ~GraphicsScene();
  54
  55         //qreal dateTimeToSceneX( const QDateTime& dt ) const;
  56         //QDateTime sceneXtoDateTime( qreal x ) const;
  57
  58         static QModelIndex mainIndex( const QModelIndex& idx );
  59         static QModelIndex dataIndex( const QModelIndex& idx );
  60
  61         QAbstractItemModel* model() const;
  62         QAbstractProxyModel* summaryHandlingModel() const;
  63         QModelIndex rootIndex() const;
  64         ConstraintModel* constraintModel() const;
  65         QItemSelectionModel* selectionModel() const;
  66
  67         void insertItem( const QPersistentModelIndex&, GraphicsItem* );
  68         void removeItem( const QModelIndex& );
  69         using QGraphicsScene::removeItem;
  70         GraphicsItem* findItem( const QModelIndex& ) const;
  71         GraphicsItem* findItem( const QPersistentModelIndex& ) const;
  72
  73         void updateItems();
  74         void clearItems();
  75         void deleteSubtree( const QModelIndex& );
  76
  77         ConstraintGraphicsItem* findConstraintItem( const Constraint& ) const;
  78         QList<ConstraintGraphicsItem*> findConstraintItems( const QModelIndex& idx ) const;
  79         void clearConstraintItems();
  80
  81         void setItemDelegate( ItemDelegate* );
  82         ItemDelegate* itemDelegate() const;
  83
  84         void setRowController( AbstractRowController* rc );
  85         AbstractRowController* rowController() const;
  86
  87         void setGrid( AbstractGrid* grid );
  88         AbstractGrid* grid() const;
  89
  90         bool isReadOnly() const;
  91
  92         void updateRow( const QModelIndex& idx );
  93         GraphicsItem* createItem( ItemType type ) const;
  94
  95         /* used by GraphicsItem */
  96         void itemEntered( const QModelIndex& );
  97         void itemPressed( const QModelIndex& );
  98         void itemClicked( const QModelIndex& );
  99         void itemDoubleClicked( const QModelIndex& );
 100         void setDragSource( GraphicsItem* item );
 101         GraphicsItem* dragSource() const;
 102
 103         /* Printing */
 104         void print( QPrinter* printer, bool drawRowLabels = true );
 105         void print( QPrinter* printer, qreal start, qreal end, bool drawRowLabels = true );
 106         void print( QPainter* painter, const QRectF& target = QRectF(), bool drawRowLabels=true );
 107         void print( QPainter* painter, qreal start, qreal end, const QRectF& target = QRectF(), bool drawRowLabels=true );
 108
 109     Q_SIGNALS:
 110         void gridChanged();
 111
 112         void clicked( const QModelIndex & index );
 113         void doubleClicked( const QModelIndex & index );
 114         void entered( const QModelIndex & index );
 115         void pressed( const QModelIndex & index );
 116
 117     protected:
 118         /*reimp*/ void helpEvent( QGraphicsSceneHelpEvent *helpEvent );
 119         /*reimp*/ void drawBackground( QPainter* painter, const QRectF& rect );
 120
 121     public Q_SLOTS:
 122         void setModel( QAbstractItemModel* );
 123         void setSummaryHandlingModel( QAbstractProxyModel* );
 124         void setConstraintModel( ConstraintModel* );
 125         void setRootIndex( const QModelIndex& idx );
 126         void setSelectionModel( QItemSelectionModel* selectionmodel );
 127         void setReadOnly( bool );
 128
 129     private Q_SLOTS:
 130         /* slots for ConstraintModel */
 131         void slotConstraintAdded( const Constraint& );
 132         void slotConstraintRemoved( const Constraint& );
 133         void slotGridChanged();
 134     private:
 135         void doPrint( QPainter* painter, const QRectF& targetRect,
 136                       qreal start, qreal end,
 137                       QPrinter* printer, bool drawRowLabels );
 138     };
 139 }
 140
 141 #endif /* KDGANTTGRAPHICSSCENE_H */