#include <KDChartLayoutItems.h>
Inheritance diagram for KDChart::AutoSpacerLayoutItem:
Public Member Functions | |
AutoSpacerLayoutItem (bool layoutIsAtTopPosition, QHBoxLayout *rightLeftLayout, bool layoutIsAtLeftPosition, QVBoxLayout *topBottomLayout) | |
virtual Qt::Orientations | expandingDirections () const |
virtual QRect | geometry () const |
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 | |
QWidget * | mParent |
QLayout * | mParentLayout |
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Definition at line 756 of file KDChartLayoutItems.cpp.
00759 : AbstractLayoutItem( Qt::AlignCenter ) 00760 , mLayoutIsAtTopPosition( layoutIsAtTopPosition ) 00761 , mRightLeftLayout( rightLeftLayout ) 00762 , mLayoutIsAtLeftPosition( layoutIsAtLeftPosition ) 00763 , mTopBottomLayout( topBottomLayout ) 00764 { 00765 } |
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Definition at line 767 of file KDChartLayoutItems.cpp.
00768 { 00769 return 0; // Grow neither vertically nor horizontally 00770 } |
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Definition at line 772 of file KDChartLayoutItems.cpp.
00773 {
00774 return mRect;
00775 }
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Definition at line 777 of file KDChartLayoutItems.cpp.
00778 { 00779 return true; // never empty, otherwise the layout item would not exist 00780 } |
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Definition at line 782 of file KDChartLayoutItems.cpp. References sizeHint().
00783 { 00784 return sizeHint(); 00785 } |
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Definition at line 787 of file KDChartLayoutItems.cpp. References sizeHint().
00788 { 00789 return sizeHint(); 00790 } |
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Implements KDChart::AbstractLayoutItem. Definition at line 861 of file KDChartLayoutItems.cpp.
00862 { 00863 if( mParentLayout && mRect.isValid() && mCachedSize.isValid() && 00864 mCommonBrush.style() != Qt::NoBrush ) 00865 { 00866 QPoint p1( mRect.topLeft() ); 00867 QPoint p2( mRect.bottomRight() ); 00868 if( mLayoutIsAtLeftPosition ) 00869 p1.rx() += mCachedSize.width() - mParentLayout->spacing(); 00870 else 00871 p2.rx() -= mCachedSize.width() - mParentLayout->spacing(); 00872 if( mLayoutIsAtTopPosition ){ 00873 p1.ry() += mCachedSize.height() - mParentLayout->spacing() - 1; 00874 p2.ry() -= 1; 00875 }else 00876 p2.ry() -= mCachedSize.height() - mParentLayout->spacing() - 1; 00877 //qDebug() << mLayoutIsAtTopPosition << mLayoutIsAtLeftPosition; 00878 //qDebug() << mRect; 00879 //qDebug() << mParentLayout->margin(); 00880 //qDebug() << QRect( p1, p2 ); 00881 const QPoint oldBrushOrigin( painter->brushOrigin() ); 00882 const QBrush oldBrush( painter->brush() ); 00883 const QPen oldPen( painter->pen() ); 00884 const QPointF newTopLeft( painter->deviceMatrix().map( p1 ) ); 00885 painter->setBrushOrigin( newTopLeft ); 00886 painter->setBrush( mCommonBrush ); 00887 painter->setPen( Qt::NoPen ); 00888 painter->drawRect( QRect( p1, p2 ) ); 00889 painter->setBrushOrigin( oldBrushOrigin ); 00890 painter->setBrush( oldBrush ); 00891 painter->setPen( oldPen ); 00892 } 00893 // debug code: 00894 #if 0 00895 //qDebug() << "KDChart::AutoSpacerLayoutItem::paint()"; 00896 if( !mRect.isValid() ) 00897 return; 00898 00899 painter->drawRect( mRect ); 00900 painter->drawLine( QPointF( mRect.x(), mRect.top() ), 00901 QPointF( mRect.right(), mRect.bottom() ) ); 00902 painter->drawLine( QPointF( mRect.right(), mRect.top() ), 00903 QPointF( mRect.x(), mRect.bottom() ) ); 00904 #endif 00905 } |
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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 } |
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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 } |
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Definition at line 74 of file KDChartLayoutItems.h.
00075 { 00076 return mParentLayout; 00077 } |
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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 } |
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Definition at line 792 of file KDChartLayoutItems.cpp.
00793 { 00794 mRect = r; 00795 } |
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Definition at line 70 of file KDChartLayoutItems.h.
00071 { 00072 mParentLayout = lay; 00073 } |
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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 } |
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Definition at line 817 of file KDChartLayoutItems.cpp. References KDChart::AbstractArea::bottomOverlap(), KDChart::AbstractArea::leftOverlap(), KDChart::AbstractArea::rightOverlap(), KDChart::AbstractArea::topOverlap(), and updateCommonBrush(). Referenced by maximumSize(), and minimumSize().
00818 { 00819 QBrush commonBrush; 00820 bool bStart=true; 00821 // calculate the maximal overlap of the top/bottom axes: 00822 int topBottomOverlap = 0; 00823 if( mTopBottomLayout ){ 00824 for (int i = 0; i < mTopBottomLayout->count(); ++i){ 00825 AbstractArea* area = dynamic_cast<AbstractArea*>(mTopBottomLayout->itemAt(i)); 00826 if( area ){ 00827 //qDebug() << "AutoSpacerLayoutItem testing" << area; 00828 topBottomOverlap = 00829 mLayoutIsAtLeftPosition 00830 ? qMax( topBottomOverlap, area->rightOverlap() ) 00831 : qMax( topBottomOverlap, area->leftOverlap() ); 00832 updateCommonBrush( commonBrush, bStart, *area ); 00833 } 00834 } 00835 } 00836 // calculate the maximal overlap of the left/right axes: 00837 int leftRightOverlap = 0; 00838 if( mRightLeftLayout ){ 00839 for (int i = 0; i < mRightLeftLayout->count(); ++i){ 00840 AbstractArea* area = dynamic_cast<AbstractArea*>(mRightLeftLayout->itemAt(i)); 00841 if( area ){ 00842 //qDebug() << "AutoSpacerLayoutItem testing" << area; 00843 leftRightOverlap = 00844 mLayoutIsAtTopPosition 00845 ? qMax( leftRightOverlap, area->bottomOverlap() ) 00846 : qMax( leftRightOverlap, area->topOverlap() ); 00847 updateCommonBrush( commonBrush, bStart, *area ); 00848 } 00849 } 00850 } 00851 if( topBottomOverlap > 0 && leftRightOverlap > 0 ) 00852 mCommonBrush = commonBrush; 00853 else 00854 mCommonBrush = QBrush(); 00855 mCachedSize = QSize( topBottomOverlap, leftRightOverlap ); 00856 //qDebug() << mCachedSize; 00857 return mCachedSize; 00858 } |
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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 } |
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Definition at line 88 of file KDChartLayoutItems.h. Referenced by KDChart::AbstractLayoutItem::setParentWidget(). |
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Definition at line 89 of file KDChartLayoutItems.h. |