KDChart::AbstractAreaBase

KDChart::AbstractAreaBase Class Reference

#include <KDChartAbstractAreaBase.h>

Inheritance diagram for KDChart::AbstractAreaBase:

Inheritance graph
[legend]

List of all members.

Detailed Description

Base class for AbstractArea and AbstractAreaWidget: An area in the chart with a background, a frame, etc.

AbstractAreaBase is the base class for all chart elements that have a set of background attributes and frame attributes, such as legends or axes.

Note:
Normally you should not use AbstractAreaBase directly, but derive your classes from AbstractArea or AbstractAreaWidget.

This classis not a QObject, so it is easier to inherit from it, if your are inheriting from a QObject too like AbstractAreaWidget does it.

See also:
AbstractArea, AbstractAreaWidget

Definition at line 69 of file KDChartAbstractAreaBase.h.


Public Member Functions

void alignToReferencePoint (const RelativePosition &position)
BackgroundAttributes backgroundAttributes () const
bool compare (const AbstractAreaBase *other) const
 Returns true if both areas have the same settings.
FrameAttributes frameAttributes () const
void getFrameLeadings (int &left, int &top, int &right, int &bottom) const
virtual void paintBackground (QPainter &painter, const QRect &rectangle)
virtual void paintFrame (QPainter &painter, const QRect &rectangle)
void setBackgroundAttributes (const BackgroundAttributes &a)
void setFrameAttributes (const FrameAttributes &a)

Static Public Member Functions

static void paintBackgroundAttributes (QPainter &painter, const QRect &rectangle, const KDChart::BackgroundAttributes &attributes)
static void paintFrameAttributes (QPainter &painter, const QRect &rectangle, const KDChart::FrameAttributes &attributes)

Protected Member Functions

 AbstractAreaBase ()
virtual QRect areaGeometry () const =0
QRect innerRect () const
virtual void positionHasChanged ()
virtual ~AbstractAreaBase ()

Constructor & Destructor Documentation

AbstractAreaBase::AbstractAreaBase (  )  [protected]

Definition at line 58 of file KDChartAbstractAreaBase.cpp.

00058                                    :
00059     _d( new Private() )
00060 {
00061 }

AbstractAreaBase::~AbstractAreaBase (  )  [protected, virtual]

Definition at line 63 of file KDChartAbstractAreaBase.cpp.

00064 {
00065     delete _d; _d = 0;
00066 }

Member Function Documentation

void AbstractAreaBase::alignToReferencePoint ( const RelativePosition &  position  ) 

Definition at line 91 of file KDChartAbstractAreaBase.cpp.

00092 {
00093     Q_UNUSED( position );
00094     // PENDING(kalle) FIXME
00095     qWarning( "Sorry, not implemented: void AbstractAreaBase::alignToReferencePoint( const RelativePosition& position )" );
00096 }

virtual QRect KDChart::AbstractAreaBase::areaGeometry (  )  const [protected, pure virtual]

Implemented in KDChart::AbstractArea, KDChart::AbstractAreaWidget, and KDChart::TextArea.

Referenced by innerRect().

BackgroundAttributes AbstractAreaBase::backgroundAttributes (  )  const

Definition at line 121 of file KDChartAbstractAreaBase.cpp.

References d.

Referenced by compare(), and updateCommonBrush().

00122 {
00123     return d->backgroundAttributes;
00124 }

bool AbstractAreaBase::compare ( const AbstractAreaBase *  other  )  const

Returns true if both areas have the same settings.

Definition at line 76 of file KDChartAbstractAreaBase.cpp.

References backgroundAttributes(), and frameAttributes().

00077 {
00078     if( other == this ) return true;
00079     if( ! other ){
00080         //qDebug() << "CartesianAxis::compare() cannot compare to Null pointer";
00081         return false;
00082     }
00083     /*
00084     qDebug() << "AbstractAreaBase:" << (frameAttributes() == other->frameAttributes())
00085         << (backgroundAttributes() == other->backgroundAttributes()) << "\n";
00086     */
00087     return  (frameAttributes()      == other->frameAttributes()) &&
00088             (backgroundAttributes() == other->backgroundAttributes());
00089 }

FrameAttributes AbstractAreaBase::frameAttributes (  )  const

Definition at line 107 of file KDChartAbstractAreaBase.cpp.

References d.

Referenced by KDChart::Legend::clone(), compare(), and updateCommonBrush().

00108 {
00109     return d->frameAttributes;
00110 }

void AbstractAreaBase::getFrameLeadings ( int &  left,
int &  top,
int &  right,
int &  bottom 
) const

Definition at line 213 of file KDChartAbstractAreaBase.cpp.

References d.

Referenced by innerRect(), and KDChart::AbstractAreaWidget::paintAll().

00214 {
00215     if( d && d->frameAttributes.isVisible() ){
00216         const int padding = qMax( d->frameAttributes.padding(), 0 );
00217         left   = padding;
00218         top    = padding;
00219         right  = padding;
00220         bottom = padding;
00221     }else{
00222         left   = 0;
00223         top    = 0;
00224         right  = 0;
00225         bottom = 0;
00226     }
00227 }

QRect AbstractAreaBase::innerRect (  )  const [protected]

Definition at line 229 of file KDChartAbstractAreaBase.cpp.

References areaGeometry(), and getFrameLeadings().

Referenced by KDChart::TextArea::paintAll(), and KDChart::AbstractArea::paintAll().

00230 {
00231     int left;
00232     int top;
00233     int right;
00234     int bottom;
00235     getFrameLeadings( left, top, right, bottom );
00236     return
00237         QRect( QPoint(0,0), areaGeometry().size() )
00238             .adjusted( left, top, -right, -bottom );
00239 }

void AbstractAreaBase::paintBackground ( QPainter &  painter,
const QRect &  rectangle 
) [virtual]

Definition at line 197 of file KDChartAbstractAreaBase.cpp.

References d, and paintBackgroundAttributes().

Referenced by KDChart::TextArea::paintAll(), KDChart::AbstractAreaWidget::paintAll(), and KDChart::AbstractArea::paintAll().

00198 {
00199     Q_ASSERT_X ( d != 0, "AbstractAreaBase::paintBackground()",
00200                 "Private class was not initialized!" );
00201     paintBackgroundAttributes( painter, rect, d->backgroundAttributes );
00202 }

void AbstractAreaBase::paintBackgroundAttributes ( QPainter &  painter,
const QRect &  rectangle,
const KDChart::BackgroundAttributes &  attributes 
) [static]

Definition at line 128 of file KDChartAbstractAreaBase.cpp.

References KDChart::BackgroundAttributes::BackgroundPixmapModeCentered, KDChart::BackgroundAttributes::BackgroundPixmapModeNone, KDChart::BackgroundAttributes::BackgroundPixmapModeScaled, KDChart::BackgroundAttributes::BackgroundPixmapModeStretched, KDChart::BackgroundAttributes::brush(), KDChart::BackgroundAttributes::isVisible(), m, KDChart::BackgroundAttributes::pixmap(), and KDChart::BackgroundAttributes::pixmapMode().

Referenced by paintBackground().

00130 {
00131     if( !attributes.isVisible() ) return;
00132 
00133     /* first draw the brush (may contain a pixmap)*/
00134     if( Qt::NoBrush != attributes.brush().style() ) {
00135         KDChart::PainterSaver painterSaver( &painter );
00136         painter.setPen( Qt::NoPen );
00137         const QPointF newTopLeft( painter.deviceMatrix().map( rect.topLeft() ) );
00138         painter.setBrushOrigin( newTopLeft );
00139         painter.setBrush( attributes.brush() );
00140         painter.drawRect( rect.adjusted( 0, 0, -1, -1 ) );
00141     }
00142     /* next draw the backPixmap over the brush */
00143     if( !attributes.pixmap().isNull() &&
00144         attributes.pixmapMode() != BackgroundAttributes::BackgroundPixmapModeNone ) {
00145         QPointF ol = rect.topLeft();
00146         if( BackgroundAttributes::BackgroundPixmapModeCentered == attributes.pixmapMode() )
00147         {
00148             ol.setX( rect.center().x() - attributes.pixmap().width() / 2 );
00149             ol.setY( rect.center().y() - attributes.pixmap().height()/ 2 );
00150             painter.drawPixmap( ol, attributes.pixmap() );
00151         } else {
00152             QMatrix m;
00153             double zW = (double)rect.width()  / (double)attributes.pixmap().width();
00154             double zH = (double)rect.height() / (double)attributes.pixmap().height();
00155             switch( attributes.pixmapMode() ) {
00156             case BackgroundAttributes::BackgroundPixmapModeScaled:
00157             {
00158                 double z;
00159                 z = qMin( zW, zH );
00160                 m.scale( z, z );
00161             }
00162             break;
00163             case BackgroundAttributes::BackgroundPixmapModeStretched:
00164                 m.scale( zW, zH );
00165                 break;
00166             default:
00167                 ; // Cannot happen, previously checked
00168             }
00169             QPixmap pm = attributes.pixmap().transformed( m );
00170             ol.setX( rect.center().x() - pm.width() / 2 );
00171             ol.setY( rect.center().y() - pm.height()/ 2 );
00172             painter.drawPixmap( ol, pm );
00173         }
00174     }
00175 }

void AbstractAreaBase::paintFrame ( QPainter &  painter,
const QRect &  rectangle 
) [virtual]

Definition at line 205 of file KDChartAbstractAreaBase.cpp.

References d, and paintFrameAttributes().

Referenced by KDChart::TextArea::paintAll(), KDChart::AbstractAreaWidget::paintAll(), and KDChart::AbstractArea::paintAll().

00206 {
00207     Q_ASSERT_X ( d != 0, "AbstractAreaBase::paintFrame()",
00208                 "Private class was not initialized!" );
00209     paintFrameAttributes( painter, rect, d->frameAttributes );
00210 }

void AbstractAreaBase::paintFrameAttributes ( QPainter &  painter,
const QRect &  rectangle,
const KDChart::FrameAttributes &  attributes 
) [static]

Definition at line 178 of file KDChartAbstractAreaBase.cpp.

References KDChart::FrameAttributes::isVisible(), KDChart::FrameAttributes::pen(), and KDChart::PrintingParameters::scalePen().

Referenced by paintFrame().

00180 {
00181 
00182     if( !attributes.isVisible() ) return;
00183 
00184     // Note: We set the brush to NoBrush explicitly here.
00185     //       Otherwise we might get a filled rectangle, so any
00186     //       previously drawn background would be overwritten by that area.
00187 
00188     const QPen   oldPen(   painter.pen() );
00189     const QBrush oldBrush( painter.brush() );
00190     painter.setPen(  PrintingParameters::scalePen( attributes.pen() ) );
00191     painter.setBrush( Qt::NoBrush );
00192     painter.drawRect( rect.adjusted( 0, 0, -1, -1 ) );
00193     painter.setBrush( oldBrush );
00194     painter.setPen( oldPen );
00195 }

void AbstractAreaBase::positionHasChanged (  )  [protected, virtual]

Reimplemented in KDChart::AbstractArea, KDChart::AbstractAreaWidget, and KDChart::TextArea.

Definition at line 241 of file KDChartAbstractAreaBase.cpp.

Referenced by setBackgroundAttributes(), and setFrameAttributes().

00242 {
00243     // this bloc left empty intentionally
00244 }

void AbstractAreaBase::setBackgroundAttributes ( const BackgroundAttributes &  a  ) 

Definition at line 112 of file KDChartAbstractAreaBase.cpp.

References d, and positionHasChanged().

00113 {
00114     if( d->backgroundAttributes == a )
00115         return;
00116 
00117     d->backgroundAttributes = a;
00118     positionHasChanged();
00119 }

void AbstractAreaBase::setFrameAttributes ( const FrameAttributes &  a  ) 

Definition at line 98 of file KDChartAbstractAreaBase.cpp.

References d, and positionHasChanged().

Referenced by KDChart::Legend::clone().

00099 {
00100     if( d->frameAttributes == a )
00101         return;
00102 
00103     d->frameAttributes = a;
00104     positionHasChanged();
00105 }

The documentation for this class was generated from the following files:
Generated on Thu Mar 4 23:25:19 2010 for KD Chart 2 by  doxygen 1.5.4