KD Chart 2: KDChartAbstractDiagram.h Source File

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# KDChartAbstractDiagram.h

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    00001 /****************************************************************************
    00002  ** Copyright (C) 2006 Klarälvdalens Datakonsult AB.  All rights reserved.
    00003  **
    00004  ** This file is part of the KD Chart library.
    00005  **
    00006  ** This file may be distributed and/or modified under the terms of the
    00007  ** GNU General Public License version 2 as published by the Free Software
    00008  ** Foundation and appearing in the file LICENSE.GPL included in the
    00009  ** packaging of this file.
    00010  **
    00011  ** Licensees holding valid commercial KD Chart licenses may use this file in
    00012  ** accordance with the KD Chart Commercial License Agreement provided with
    00013  ** the Software.
    00014  **
    00015  ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    00016  ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    00017  **
    00018  ** See http://www.kdab.net/kdchart for
    00019  **   information about KDChart Commercial License Agreements.
    00020  **
    00021  ** Contact info@kdab.net if any conditions of this
    00022  ** licensing are not clear to you.
    00023  **
    00024  **********************************************************************/
    00025
    00026 #ifndef KDCHARTABSTRACTDIAGRAM_H
    00027 #define KDCHARTABSTRACTDIAGRAM_H
    00028
    00029 #include <QList>
    00030 #include <QRectF>
    00031 #include <QAbstractItemView>
    00032
    00033 #include "KDChartGlobal.h"
    00034 #include "KDChartMarkerAttributes.h"
    00035
    00036
    00037 namespace KDChart {
    00038
    00039     class AbstractCoordinatePlane;
    00040     class AttributesModel;
    00041     class DataValueAttributes;
    00042     class PaintContext;
    00043
    00053     class KDCHART_EXPORT AbstractDiagram : public QAbstractItemView
    00054     {
    00055         Q_OBJECT
    00056         Q_DISABLE_COPY( AbstractDiagram )
    00057         KDCHART_DECLARE_PRIVATE_BASE_POLYMORPHIC( AbstractDiagram )
    00058
    00059     friend class AbstractCoordinatePlane;
    00060     friend class CartesianCoordinatePlane;
    00061     friend class PolarCoordinatePlane;
    00062
    00063     protected:
    00064         explicit inline AbstractDiagram(
    00065             Private *p, QWidget* parent, AbstractCoordinatePlane* plane );
    00066         explicit AbstractDiagram (
    00067             QWidget* parent = 0, AbstractCoordinatePlane* plane = 0 );
    00068     public:
    00069         virtual ~AbstractDiagram();
    00070
    00071
    00075         bool compare( const AbstractDiagram* other )const;
    00076
    00077
    00092         const QPair<QPointF, QPointF> dataBoundaries() const;
    00093
    00094         // protected: // FIXME: why should that be private? (Mirko)
    00101         virtual void paint ( PaintContext* paintContext ) = 0;
    00102
    00103     public:
    00110         virtual void resize ( const QSizeF& area ) = 0;
    00111
    00113         virtual void setModel ( QAbstractItemModel * model );
    00114
    00143         virtual void setAttributesModel( AttributesModel* model );
    00144
    00151         virtual bool usesExternalAttributesModel()const;
    00152
    00163         virtual AttributesModel* attributesModel() const;
    00164
    00167         virtual void setRootIndex ( const QModelIndex& idx );
    00168
    00170         virtual QRect visualRect(const QModelIndex &index) const;
    00172         virtual void scrollTo(const QModelIndex &index, ScrollHint hint = EnsureVisible);
    00174         virtual QModelIndex indexAt(const QPoint &point) const;
    00176         virtual QModelIndex moveCursor(CursorAction cursorAction, Qt::KeyboardModifiers modifiers);
    00178         virtual int horizontalOffset() const;
    00180         virtual int verticalOffset() const;
    00182         virtual bool isIndexHidden(const QModelIndex &index) const;
    00184         virtual void setSelection(const QRect &rect, QItemSelectionModel::SelectionFlags command);
    00186         virtual QRegion visualRegionForSelection(const QItemSelection &selection) const;
    00188         virtual void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight);
    00190         virtual void doItemsLayout();
    00191
    00198         AbstractCoordinatePlane* coordinatePlane() const;
    00199
    00206         virtual void setCoordinatePlane( AbstractCoordinatePlane* plane );
    00207
    00208
    00221         void setHidden( const QModelIndex & index, bool hidden );
    00222
    00235         void setHidden( int column, bool hidden );
    00236
    00248         void setHidden( bool hidden );
    00249
    00256         bool isHidden() const;
    00257
    00265         bool isHidden( int column ) const;
    00266
    00274         bool isHidden( const QModelIndex & index ) const;
    00275
    00276
    00282         void setDataValueAttributes( const QModelIndex & index,
    00283                                      const DataValueAttributes & a );
    00284
    00290         void setDataValueAttributes( int dataset, const DataValueAttributes & a );
    00291
    00296         void setDataValueAttributes( const DataValueAttributes & a );
    00297
    00304         DataValueAttributes dataValueAttributes() const;
    00305
    00313         DataValueAttributes dataValueAttributes( int column ) const;
    00314
    00322         DataValueAttributes dataValueAttributes( const QModelIndex & index ) const;
    00323
    00329         void setPen( const QModelIndex& index, const QPen& pen );
    00330
    00336         void setPen( int dataset, const QPen& pen );
    00337
    00342         void setPen( const QPen& pen );
    00343
    00350         QPen pen() const;
    00358         QPen pen( int dataset ) const;
    00365         QPen pen( const QModelIndex& index ) const;
    00366
    00372         void setBrush( const QModelIndex& index, const QBrush& brush);
    00373
    00379         void setBrush( int dataset, const QBrush& brush );
    00380
    00385         void setBrush( const QBrush& brush);
    00386
    00393         QBrush brush() const;
    00401         QBrush brush( int dataset ) const;
    00408         QBrush brush( const QModelIndex& index ) const;
    00409
    00414         void setAllowOverlappingDataValueTexts( bool allow );
    00415
    00419         bool allowOverlappingDataValueTexts() const;
    00420
    00426         void setAntiAliasing( bool enabled );
    00427
    00432         bool antiAliasing() const;
    00433
    00440         void useDefaultColors();
    00441
    00447         void useRainbowColors();
    00448
    00454         void useSubduedColors();
    00455
    00460         QStringList itemRowLabels() const;
    00461
    00466         QStringList datasetLabels() const;
    00467
    00477         QList<QBrush> datasetBrushes() const;
    00478
    00488         QList<QPen> datasetPens() const;
    00489
    00499         QList<MarkerAttributes> datasetMarkers() const;
    00500
    00501
    00502         // configure the ordinate in percent mode - values 0 to 100
    00503         void setPercentMode( bool percent );
    00504         bool percentMode() const;
    00505
    00506         virtual void paintMarker( QPainter* painter,
    00507                                   const MarkerAttributes& markerAttributes,
    00508                                   const QBrush& brush, const QPen&,
    00509                                   const QPointF& point, const QSizeF& size );
    00510
    00525         int datasetDimension() const;
    00526
    00532         void setDatasetDimension( int dimension );
    00533
    00534         void update() const;
    00535
    00536         void paintMarker( QPainter* painter, const QModelIndex& index,
    00537                           const QPointF& pos );
    00538         void paintDataValueText( QPainter* painter, const QModelIndex& index,
    00539                                  const QPointF& pos, double value );
    00540
    00541     protected:
    00542         virtual bool checkInvariants( bool justReturnTheStatus=false ) const;
    00543         virtual const QPair<QPointF, QPointF> calculateDataBoundaries() const = 0;
    00544         void setDataBoundariesDirty() const;
    00545         virtual void paintDataValueTexts( QPainter* painter );
    00546         virtual void paintMarkers( QPainter* painter );
    00547         void setAttributesModelRootIndex( const QModelIndex& );
    00548         QModelIndex attributesModelRootIndex() const;
    00549         QModelIndex columnToIndex( int column ) const;
    00556         double valueForCell( int row, int column ) const;
    00557
    00558     Q_SIGNALS:
    00567         void layoutChanged( AbstractDiagram* );
    00568
    00570         void modelsChanged();
    00571
    00573         void dataHidden();
    00574
    00576         void propertiesChanged();
    00577
    00578     private:
    00579         QString roundValues( double value, const int decimalPos,
    00580                               const int decimalDigits ) const;
    00581
    00582     };
    00583
    00584     typedef QList<AbstractDiagram*> AbstractDiagramList;
    00585     typedef QList<const AbstractDiagram*> ConstAbstractDiagramList;
    00586
    00587 }
    00588
    00589 #endif