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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.

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 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 683 of file KDChartLayoutItems.cpp.

00692     : AbstractLayoutItem( alignment )
00693     , mDiagram(     diagram )
00694     , mLineLength(  lineLength )
00695     , mLinePen(     linePen )
00696     , mMarkerOffs(  markerOffs )
00697     , mMarker(      marker )
00698     , mMarkerBrush( markerBrush )
00699     , mMarkerPen(   markerPen )
00700 {
00701 }


Member Function Documentation

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

Definition at line 703 of file KDChartLayoutItems.cpp.

00704 {
00705     return 0; // Grow neither vertically nor horizontally
00706 }

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

Definition at line 708 of file KDChartLayoutItems.cpp.

00709 {
00710     return mRect;
00711 }

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

Definition at line 713 of file KDChartLayoutItems.cpp.

00714 {
00715     return false; // never empty, otherwise the layout item would not exist
00716 }

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

Definition at line 718 of file KDChartLayoutItems.cpp.

References sizeHint().

00719 {
00720     return sizeHint(); // PENDING(kalle) Review, quite inflexible
00721 }

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

Definition at line 723 of file KDChartLayoutItems.cpp.

References sizeHint().

00724 {
00725     return sizeHint(); // PENDING(kalle) Review, quite inflexible
00726 }

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

Implements KDChart::AbstractLayoutItem.

Definition at line 741 of file KDChartLayoutItems.cpp.

References KDChart::MarkerAttributes::markerSize().

00742 {
00743     // paint the line over the full width, into the vertical middle of the rect
00744     LineLayoutItem::paintIntoRect( painter, mRect, mLinePen );
00745 
00746     // paint the marker with the given offset from the left side of the line
00747     const QRect r(
00748             QPoint( mRect.x()+mMarkerOffs, mRect.y() ),
00749             QSize( mMarker.markerSize().toSize().width(), mRect.height() ) );
00750     MarkerLayoutItem::paintIntoRect(
00751             painter, r, mDiagram, mMarker, mMarkerBrush, mMarkerPen );
00752 }

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, and KDChart::TextArea.

Definition at line 69 of file KDChartLayoutItems.cpp.

References KDChart::AbstractLayoutItem::paint().

00070 {
00071     paint( &painter );
00072 }

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

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

Reimplemented in KDChart::CartesianAxis.

Definition at line 77 of file KDChartLayoutItems.cpp.

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

00078 {
00079     if( context )
00080         paint( context->painter() );
00081 }

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

Definition at line 74 of file KDChartLayoutItems.h.

00075         {
00076             return mParentLayout;
00077         }

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

Definition at line 78 of file KDChartLayoutItems.h.

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

00079         {
00080             if( mParentLayout ){
00081                 if( widget() )
00082                     mParentLayout->removeWidget( widget() );
00083                 else
00084                     mParentLayout->removeItem( this );
00085             }
00086         }

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

Definition at line 728 of file KDChartLayoutItems.cpp.

00729 {
00730     mRect = r;
00731 }

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

Definition at line 70 of file KDChartLayoutItems.h.

00071         {
00072             mParentLayout = lay;
00073         }

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 64 of file KDChartLayoutItems.cpp.

References KDChart::AbstractLayoutItem::mParent.

Referenced by KDChart::Legend::buildLegend(), and KDChart::AbstractCartesianDiagram::takeAxis().

00065 {
00066     mParent = widget;
00067 }

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

Definition at line 733 of file KDChartLayoutItems.cpp.

References KDChart::MarkerAttributes::markerSize().

Referenced by maximumSize(), and minimumSize().

00734 {
00735     const QSize sizeM = mMarker.markerSize().toSize();
00736     const QSize sizeL = QSize( mLineLength, mLinePen.width()+2 );
00737     return QSize( qMax(sizeM.width(),  sizeL.width()),
00738                   qMax(sizeM.height(), sizeL.height()) );
00739 }

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

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

Definition at line 86 of file KDChartLayoutItems.cpp.

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

00087 {
00088     // This is exactly like what QWidget::updateGeometry does.
00089 //  qDebug("KDChart::AbstractLayoutItem::sizeHintChanged() called");
00090     if( mParent ) {
00091         if ( mParent->layout() )
00092             mParent->layout()->invalidate();
00093         else
00094             QApplication::postEvent( mParent, new QEvent( QEvent::LayoutRequest ) );
00095     }
00096 }


Member Data Documentation

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

Definition at line 88 of file KDChartLayoutItems.h.

Referenced by KDChart::AbstractLayoutItem::setParentWidget().

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

Definition at line 89 of file KDChartLayoutItems.h.


The documentation for this class was generated from the following files:
Generated on Thu May 10 11:06:33 2007 for KD Chart 2 by doxygen 1.3.6