File indexing completed on 2024-05-12 04:20:28

 /*
  * SPDX-FileCopyrightText: 2001-2015 Klaralvdalens Datakonsult AB. All rights reserved.
  *
  * This file is part of the KD Chart library.
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 #include "KChartAbstractAreaWidget.h"
 #include "KChartAbstractAreaWidget_p.h"
 
 #include "KChartMath_p.h"
 
 
 using namespace KChart;
 
 
 AbstractAreaWidget::Private::Private()
 {
     // this block left empty intentionally
 }
 
 AbstractAreaWidget::Private::~Private()
 {
     // this block left empty intentionally
 }
 
 
 void AbstractAreaWidget::Private::resizeLayout(
     AbstractAreaWidget* widget, const QSize& size )
 {
     if ( size == currentLayoutSize ) return;
 
     currentLayoutSize = size;
 
     // Now we call adjust the size, for the inner parts of the widget.
     int left;
     int top;
     int right;
     int bottom;
     widget->getFrameLeadings( left, top, right, bottom );
     const QSize innerSize( size.width() - left - right,
                            size.height() - top - bottom );
     // With this adjusted size we call the real resizeLayout method,
     // which normally will call resizeLayout( size ) in the derived class
     // - which in turn is the place to resize the layout of that class.
     widget->resizeLayout( innerSize );
 }
 
 
 AbstractAreaWidget::AbstractAreaWidget( QWidget* parent )
     : QWidget( parent )
     , AbstractAreaBase( new Private() )
 {
     init();
 }
 
 AbstractAreaWidget::~AbstractAreaWidget()
 {
     // this block left empty intentionally
 }
 
 void AbstractAreaWidget::init()
 {
     // this block left empty intentionally
 }
 
 void AbstractAreaWidget::needSizeHint()
 {
     // this block left empty intentionally
 }
 
 #define d d_func()
 
 void AbstractAreaWidget::resizeLayout( const QSize& size )
 {
     Q_UNUSED( size );
     // this block left empty intentionally
 }
 
 void AbstractAreaWidget::paintEvent( QPaintEvent* event )
 {
     Q_UNUSED( event );
     QPainter painter( this );
     if ( size() != d->currentLayoutSize ) {
         d->resizeLayout( this, size() );
     }
     paintAll( painter );
 }
 
 void AbstractAreaWidget::paintIntoRect( QPainter& painter, const QRect& rect )
 {
     if ( rect.isEmpty() ) return;
 
     d->resizeLayout( this, rect.size() );
 
     const QPoint translation( rect.topLeft() );
     painter.translate( translation );
     paintAll( painter );
     painter.translate( -translation.x(), -translation.y() );
 
 /*
     // guide for subclassing
 
     // set up the contents of the widget so we get a useful geometry
     needSizeHint();
 
     const QRect oldGeometry( layout()->geometry() );
     const QRect newGeo( QPoint(0,0), rect.size() );
     const bool mustChangeGeo = layout() && oldGeometry != newGeo;
     if ( mustChangeGeo )
         layout()->setGeometry( newGeo );
     painter.translate( rect.left(), rect.top() );
     paintAll( painter );
     painter.translate( -rect.left(), -rect.top() );
     if ( mustChangeGeo )
         layout()->setGeometry( oldGeometry );
 */
 }
 
 void AbstractAreaWidget::forceRebuild()
 {
     // this block left empty intentionally
 }
 
 void AbstractAreaWidget::paintAll( QPainter& painter )
 {
     paintBackground( painter, QRect(QPoint(0, 0), size() ) );
     paintFrame( painter, QRect(QPoint(0, 0), size() ) );
 
 /*
     // guide for subclassing
 
     // we do not call setContentsMargins() now,
     // but we call resizeLayout() whenever the size or the frame has changed
 
     // adjust the widget's content margins,
     // to be sure all content gets calculated
     // to fit into the inner rectangle
     const QRect oldGeometry( areaGeometry() );
     const QRect inner( innerRect() );
     //qDebug() << "areaGeometry():" << oldGeometry
     //         << "  contentsRect():" << contentsRect() << "  inner:" << inner;
     if ( contentsRect() != inner ) {
         //qDebug() << "old contentsRect():" << contentsRect() << "  new innerRect:" << inner;
         setContentsMargins(
             inner.left(),
             inner.top(),
             oldGeometry.width() - inner.width() - 1,
             oldGeometry.height() - inner.height() - 1 );
         //forceRebuild();
     }
 */
     int left;
     int top;
     int right;
     int bottom;
     getFrameLeadings( left, top, right, bottom );
     const QPoint translation( left, top );
     painter.translate( translation );
     paint( &painter );
     painter.translate( -translation.x(), -translation.y() );
 }
 
 QRect AbstractAreaWidget::areaGeometry() const
 {
     return geometry();
 }
 
 void AbstractAreaWidget::positionHasChanged()
 {
     Q_EMIT positionChanged( this );
 }