KDChart::LineWithMarkerLayoutItem Class Reference

#include <KDChartLayoutItems.h>

Inheritance diagram for KDChart::LineWithMarkerLayoutItem:

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Collaboration diagram for KDChart::LineWithMarkerLayoutItem:

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List of all members.


Detailed Description

Layout item showing a coloured line and a data point marker.

Definition at line 296 of file KDChartLayoutItems.h.


Public Member Functions

virtual Qt::Orientations expandingDirections () const
virtual QRect geometry () const
virtual bool isEmpty () const
 LineWithMarkerLayoutItem (AbstractDiagram *diagram, int lineLength, const QPen &linePen, int markerOffs, const MarkerAttributes &marker, const QBrush &markerBrush, const QPen &markerPen, Qt::Alignment alignment=0)
virtual QSize maximumSize () const
virtual QSize minimumSize () const
virtual void paint (QPainter *)
virtual void paintAll (QPainter &painter)
 Default impl: just call paint.
virtual void paintCtx (PaintContext *context)
 Default impl: Paint the complete item using its layouted position and size.
QLayout * parentLayout ()
void removeFromParentLayout ()
virtual void setGeometry (const QRect &r)
void setParentLayout (QLayout *lay)
virtual void setParentWidget (QWidget *widget)
 Inform the item about its widget: This enables the item, to trigger that widget's update, whenever the size of the item's contents has changed.
virtual QSize sizeHint () const
virtual void sizeHintChanged () const
 Report changed size hint: ask the parent widget to recalculate the layout.

Protected Attributes

QWidgetmParent
QLayout * mParentLayout

Constructor & Destructor Documentation

KDChart::LineWithMarkerLayoutItem::LineWithMarkerLayoutItem ( KDChart::AbstractDiagram diagram,
int  lineLength,
const QPen &  linePen,
int  markerOffs,
const MarkerAttributes marker,
const QBrush &  markerBrush,
const QPen &  markerPen,
Qt::Alignment  alignment = 0 
)

Definition at line 934 of file KDChartLayoutItems.cpp.

00943     : AbstractLayoutItem( alignment )
00944     , mDiagram(     diagram )
00945     , mLineLength(  lineLength )
00946     , mLinePen(     linePen )
00947     , mMarkerOffs(  markerOffs )
00948     , mMarker(      marker )
00949     , mMarkerBrush( markerBrush )
00950     , mMarkerPen(   markerPen )
00951 {
00952 }


Member Function Documentation

Qt::Orientations KDChart::LineWithMarkerLayoutItem::expandingDirections (  )  const [virtual]

Definition at line 954 of file KDChartLayoutItems.cpp.

00955 {
00956     return 0; // Grow neither vertically nor horizontally
00957 }

QRect KDChart::LineWithMarkerLayoutItem::geometry (  )  const [virtual]

Definition at line 959 of file KDChartLayoutItems.cpp.

00960 {
00961     return mRect;
00962 }

bool KDChart::LineWithMarkerLayoutItem::isEmpty (  )  const [virtual]

Definition at line 964 of file KDChartLayoutItems.cpp.

00965 {
00966     return false; // never empty, otherwise the layout item would not exist
00967 }

QSize KDChart::LineWithMarkerLayoutItem::maximumSize (  )  const [virtual]

Definition at line 969 of file KDChartLayoutItems.cpp.

References sizeHint().

00970 {
00971     return sizeHint(); // PENDING(kalle) Review, quite inflexible
00972 }

QSize KDChart::LineWithMarkerLayoutItem::minimumSize (  )  const [virtual]

Definition at line 974 of file KDChartLayoutItems.cpp.

References sizeHint().

00975 {
00976     return sizeHint(); // PENDING(kalle) Review, quite inflexible
00977 }

void KDChart::LineWithMarkerLayoutItem::paint ( QPainter *  painter  )  [virtual]

Implements KDChart::AbstractLayoutItem.

Definition at line 992 of file KDChartLayoutItems.cpp.

References KDChart::MarkerAttributes::markerSize(), KDChart::MarkerLayoutItem::paintIntoRect(), KDChart::LineLayoutItem::paintIntoRect(), and r.

00993 {
00994     // paint the line over the full width, into the vertical middle of the rect
00995     LineLayoutItem::paintIntoRect( painter, mRect, mLinePen );
00996 
00997     // paint the marker with the given offset from the left side of the line
00998     const QRect r(
00999             QPoint( mRect.x()+mMarkerOffs, mRect.y() ),
01000             QSize( mMarker.markerSize().toSize().width(), mRect.height() ) );
01001     MarkerLayoutItem::paintIntoRect(
01002             painter, r, mDiagram, mMarker, mMarkerBrush, mMarkerPen );
01003 }

void KDChart::AbstractLayoutItem::paintAll ( QPainter &  painter  )  [virtual, inherited]

Default impl: just call paint.

Derived classes like KDChart::AbstractArea are providing additional action here.

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

Definition at line 70 of file KDChartLayoutItems.cpp.

References KDChart::AbstractLayoutItem::paint().

00071 {
00072     paint( &painter );
00073 }

void KDChart::AbstractLayoutItem::paintCtx ( PaintContext context  )  [virtual, inherited]

Default impl: Paint the complete item using its layouted position and size.

Reimplemented in KDChart::CartesianAxis, KDChart::LeveyJenningsAxis, and KDChart::TernaryAxis.

Definition at line 78 of file KDChartLayoutItems.cpp.

References KDChart::AbstractLayoutItem::paint(), and KDChart::PaintContext::painter().

00079 {
00080     if( context )
00081         paint( context->painter() );
00082 }

QLayout* KDChart::AbstractLayoutItem::parentLayout (  )  [inherited]

Definition at line 79 of file KDChartLayoutItems.h.

00080         {
00081             return mParentLayout;
00082         }

void KDChart::AbstractLayoutItem::removeFromParentLayout (  )  [inherited]

Definition at line 83 of file KDChartLayoutItems.h.

Referenced by KDChart::Chart::takeCoordinatePlane().

00084         {
00085             if( mParentLayout ){
00086                 if( widget() )
00087                     mParentLayout->removeWidget( widget() );
00088                 else
00089                     mParentLayout->removeItem( this );
00090             }
00091         }

void KDChart::LineWithMarkerLayoutItem::setGeometry ( const QRect &  r  )  [virtual]

Definition at line 979 of file KDChartLayoutItems.cpp.

00980 {
00981     mRect = r;
00982 }

void KDChart::AbstractLayoutItem::setParentLayout ( QLayout *  lay  )  [inherited]

Definition at line 75 of file KDChartLayoutItems.h.

00076         {
00077             mParentLayout = lay;
00078         }

void KDChart::AbstractLayoutItem::setParentWidget ( QWidget widget  )  [virtual, inherited]

Inform the item about its widget: This enables the item, to trigger that widget's update, whenever the size of the item's contents has changed.

Thus, you need to call setParentWidget on every item, that has a non-fixed size.

Definition at line 65 of file KDChartLayoutItems.cpp.

References KDChart::AbstractLayoutItem::mParent.

Referenced by KDChart::HeaderFooter::setParent(), and KDChart::AbstractCartesianDiagram::takeAxis().

00066 {
00067     mParent = widget;
00068 }

QSize KDChart::LineWithMarkerLayoutItem::sizeHint (  )  const [virtual]

Definition at line 984 of file KDChartLayoutItems.cpp.

References KDChart::MarkerAttributes::markerSize().

Referenced by maximumSize(), and minimumSize().

00985 {
00986     const QSize sizeM = mMarker.markerSize().toSize();
00987     const QSize sizeL = QSize( mLineLength, mLinePen.width()+2 );
00988     return QSize( qMax(sizeM.width(),  sizeL.width()),
00989                   qMax(sizeM.height(), sizeL.height()) );
00990 }

void KDChart::AbstractLayoutItem::sizeHintChanged (  )  const [virtual, inherited]

Report changed size hint: ask the parent widget to recalculate the layout.

Definition at line 87 of file KDChartLayoutItems.cpp.

References KDChart::AbstractLayoutItem::mParent.

Referenced by KDChart::TextLayoutItem::sizeHintAndRotatedCorners().

00088 {
00089     // This is exactly like what QWidget::updateGeometry does.
00090 //  qDebug("KDChart::AbstractLayoutItem::sizeHintChanged() called");
00091     if( mParent ) {
00092         if ( mParent->layout() )
00093             mParent->layout()->invalidate();
00094         else
00095             QApplication::postEvent( mParent, new QEvent( QEvent::LayoutRequest ) );
00096     }
00097 }


Member Data Documentation

QWidget* KDChart::AbstractLayoutItem::mParent [protected, inherited]

Definition at line 93 of file KDChartLayoutItems.h.

Referenced by KDChart::AbstractLayoutItem::setParentWidget(), KDChart::TextLayoutItem::setText(), KDChart::TextLayoutItem::setTextAlignment(), KDChart::TextLayoutItem::setTextAttributes(), and KDChart::AbstractLayoutItem::sizeHintChanged().

QLayout* KDChart::AbstractLayoutItem::mParentLayout [protected, inherited]

Definition at line 94 of file KDChartLayoutItems.h.

Referenced by KDChart::AutoSpacerLayoutItem::paint().


The documentation for this class was generated from the following files:
Generated on Thu Mar 4 23:26:11 2010 for KD Chart 2 by  doxygen 1.5.4