# 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

QWidget * | mParent
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:

- KDChartLayoutItems.h
- KDChartLayoutItems.cpp