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 233 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 ( 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 687 of file KDChartLayoutItems.cpp.

00696     : AbstractLayoutItem( alignment )
00697     , mDiagram(     diagram )
00698     , mLineLength(  lineLength )
00699     , mLinePen(     linePen )
00700     , mMarkerOffs(  markerOffs )
00701     , mMarker(      marker )
00702     , mMarkerBrush( markerBrush )
00703     , mMarkerPen(   markerPen )
00704 {
00705 }


Member Function Documentation

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

Definition at line 707 of file KDChartLayoutItems.cpp.

00708 {
00709     return 0; // Grow neither vertically nor horizontally
00710 }

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

Definition at line 712 of file KDChartLayoutItems.cpp.

00713 {
00714     return mRect;
00715 }

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

Definition at line 717 of file KDChartLayoutItems.cpp.

00718 {
00719     return false; // never empty, otherwise the layout item would not exist
00720 }

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

Definition at line 722 of file KDChartLayoutItems.cpp.

References sizeHint().

00723 {
00724     return sizeHint(); // PENDING(kalle) Review, quite inflexible
00725 }

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

Definition at line 727 of file KDChartLayoutItems.cpp.

References sizeHint().

00728 {
00729     return sizeHint(); // PENDING(kalle) Review, quite inflexible
00730 }

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

Implements KDChart::AbstractLayoutItem.

Definition at line 745 of file KDChartLayoutItems.cpp.

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

00746 {
00747     // paint the line over the full width, into the vertical middle of the rect
00748     LineLayoutItem::paintIntoRect( painter, mRect, mLinePen );
00749 
00750     // paint the marker with the given offset from the left side of the line
00751     const QRect r(
00752             QPoint( mRect.x()+mMarkerOffs, mRect.y() ),
00753             QSize( mMarker.markerSize().toSize().width(), mRect.height() ) );
00754     MarkerLayoutItem::paintIntoRect(
00755             painter, r, mDiagram, mMarker, mMarkerBrush, mMarkerPen );
00756 }

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 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, and KDChart::TernaryAxis.

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 76 of file KDChartLayoutItems.h.

00077         {
00078             return mParentLayout;
00079         }

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

Definition at line 80 of file KDChartLayoutItems.h.

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

00081         {
00082             if( mParentLayout ){
00083                 if( widget() )
00084                     mParentLayout->removeWidget( widget() );
00085                 else
00086                     mParentLayout->removeItem( this );
00087             }
00088         }

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

Definition at line 732 of file KDChartLayoutItems.cpp.

00733 {
00734     mRect = r;
00735 }

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

Definition at line 72 of file KDChartLayoutItems.h.

00073         {
00074             mParentLayout = lay;
00075         }

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

00065 {
00066     mParent = widget;
00067 }

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

Definition at line 737 of file KDChartLayoutItems.cpp.

References KDChart::MarkerAttributes::markerSize().

Referenced by maximumSize(), and minimumSize().

00738 {
00739     const QSize sizeM = mMarker.markerSize().toSize();
00740     const QSize sizeL = QSize( mLineLength, mLinePen.width()+2 );
00741     return QSize( qMax(sizeM.width(),  sizeL.width()),
00742                   qMax(sizeM.height(), sizeL.height()) );
00743 }

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.

References KDChart::AbstractLayoutItem::mParent.

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 90 of file KDChartLayoutItems.h.

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

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

Definition at line 91 of file KDChartLayoutItems.h.

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


The documentation for this class was generated from the following files:
Generated on Mon Sep 17 16:18:20 2007 for KD Chart 2 by  doxygen 1.5.1