KDChart::HorizontalLineLayoutItem Class Reference

#include <KDChartLayoutItems.h>

Inheritance diagram for KDChart::HorizontalLineLayoutItem:

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Collaboration diagram for KDChart::HorizontalLineLayoutItem:

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List of all members.

Detailed Description

Layout item showing a horizontal line.

Definition at line 271 of file KDChartLayoutItems.h.

Public Member Functions

virtual Qt::Orientations expandingDirections () const
virtual QRect geometry () const
 HorizontalLineLayoutItem ()
virtual bool isEmpty () const
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::HorizontalLineLayoutItem::HorizontalLineLayoutItem (  ) 

Definition at line 422 of file KDChartLayoutItems.cpp.

00423     : AbstractLayoutItem( Qt::AlignCenter )
00424 {
00425 }


Member Function Documentation

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

Definition at line 427 of file KDChartLayoutItems.cpp.

00428 {
00429     return Qt::Vertical|Qt::Horizontal; // Grow both vertically, and horizontally
00430 }

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

Definition at line 432 of file KDChartLayoutItems.cpp.

00433 {
00434     return mRect;
00435 }

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

Definition at line 437 of file KDChartLayoutItems.cpp.

00438 {
00439     return false; // never empty, otherwise the layout item would not exist
00440 }

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

Definition at line 442 of file KDChartLayoutItems.cpp.

00443 {
00444     return QSize( QWIDGETSIZE_MAX, QWIDGETSIZE_MAX );
00445 }

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

Definition at line 447 of file KDChartLayoutItems.cpp.

00448 {
00449     return QSize( 0, 0 );
00450 }

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

Implements KDChart::AbstractLayoutItem.

Definition at line 463 of file KDChartLayoutItems.cpp.

00464 {
00465     if( !mRect.isValid() )
00466         return;
00467 
00468     painter->drawLine( QPointF( mRect.left(), mRect.center().y() ),
00469                        QPointF( mRect.right(), mRect.center().y() ) );
00470 }

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::HorizontalLineLayoutItem::setGeometry ( const QRect &  r  )  [virtual]

Definition at line 452 of file KDChartLayoutItems.cpp.

00453 {
00454     mRect = r;
00455 }

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::HorizontalLineLayoutItem::sizeHint (  )  const [virtual]

Definition at line 457 of file KDChartLayoutItems.cpp.

00458 {
00459     return QSize( -1, 3 ); // see qframe.cpp
00460 }

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 16:18:18 2007 for KD Chart 2 by  doxygen 1.5.1