KDChartLayoutItems.cpp File Reference

#include "KDChartLayoutItems.h"
#include "KDTextDocument.h"
#include "KDChartAbstractArea.h"
#include "KDChartAbstractDiagram.h"
#include "KDChartBackgroundAttributes.h"
#include "KDChartFrameAttributes.h"
#include "KDChartPaintContext.h"
#include "KDChartPainterSaver_p.h"
#include "KDChartPrintingParameters.h"
#include <QTextCursor>
#include <QTextBlockFormat>
#include <QTextDocumentFragment>
#include <QAbstractTextDocumentLayout>
#include <QLayout>
#include <QPainter>
#include <QDebug>
#include <QCoreApplication>
#include <QApplication>
#include <QStringList>
#include <QStyle>
#include <KDABLibFakes>
#include <math.h>

Include dependency graph for KDChartLayoutItems.cpp:

Go to the source code of this file.

Defines
#define	PI   3.141592653589793
Functions
QPointF	rotatedPoint (const QPointF &pt, qreal rotation, const QPointF &center)
QRectF	rotatedRect (const QRectF &oldRect, qreal angleInt, const QPointF &center)
static void	updateCommonBrush (QBrush &commonBrush, bool &bStart, const KDChart::AbstractArea &area)

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Define Documentation

#define PI   3.141592653589793

Definition at line 51 of file KDChartLayoutItems.cpp.

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Function Documentation

QPointF rotatedPoint	(	const QPointF &	pt,
		qreal	rotation,
		const QPointF &	center
	)

Definition at line 334 of file KDChartLayoutItems.cpp.

References PI.

{
    const qreal angle = PI * rotation / 180.0;
    const qreal cosAngle = cos( angle );
    const qreal sinAngle = -sin( angle );
    return QPointF(
            (cosAngle * ( pt.x() - center.x() ) + sinAngle * ( pt.y() - center.y() ) ),
            (cosAngle * ( pt.y() - center.y() ) - sinAngle * ( pt.x() - center.x() ) ) ) + center;
}

QRectF rotatedRect	(	const QRectF &	oldRect,
		qreal	angleInt,
		const QPointF &	center
	)

Definition at line 345 of file KDChartLayoutItems.cpp.

References PI.

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

{
    const QRect rect( oldRect.translated( center ).toRect() );
    const qreal angle = PI * angleInt / 180.0;
    const qreal cosAngle = cos( angle );
    const qreal sinAngle = sin( angle );
    QMatrix rotationMatrix(cosAngle, sinAngle, -sinAngle, cosAngle, 0, 0);
    QPolygon rotPts;
    rotPts <<  rotationMatrix.map(rect.topLeft()) //QPoint(0,0)
            << rotationMatrix.map(rect.topRight())
            << rotationMatrix.map(rect.bottomRight())
            << rotationMatrix.map(rect.bottomLeft());
            //<< rotatedPoint(rect.topRight(), angleInt, center).toPoint()
            //<< rotatedPoint(rect.bottomRight(), angleInt, center).toPoint()
            //<< rotatedPoint(rect.bottomLeft(), angleInt, center).toPoint();
    return rotPts.boundingRect();
/*
    const QPointF topLeft( rotatedPoint( oldRect.topLeft(), angle, center ) );
    const QPointF topRight( rotatedPoint( oldRect.topRight(), angle, center ) );
    const QPointF bottomLeft( rotatedPoint( oldRect.bottomLeft(), angle, center ) );
    const QPointF bottomRight( rotatedPoint( oldRect.bottomRight(), angle, center ) );

    const qreal x = qMin( qMin( topLeft.x(), topRight.x() ), qMin( bottomLeft.x(), topLeft.x() ) );
    const qreal y = qMin( qMin( topLeft.y(), topRight.y() ), qMin( bottomLeft.y(), topLeft.y() ) );
    const qreal width = qMax( qMax( topLeft.x(), topRight.x() ), qMax( bottomLeft.x(), topLeft.x() ) ) - x;
    const qreal height = qMax( qMax( topLeft.y(), topRight.y() ), qMax( bottomLeft.y(), topLeft.y() ) ) - y;

    return QRectF( x, y, width, height );
*/
}

static void updateCommonBrush	(	QBrush &	commonBrush,
		bool &	bStart,
		const KDChart::AbstractArea &	area
	)			[static]

Definition at line 1049 of file KDChartLayoutItems.cpp.

References KDChart::AbstractAreaBase::backgroundAttributes(), KDChart::BackgroundAttributes::BackgroundPixmapModeNone, and KDChart::AbstractAreaBase::frameAttributes().

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

{
    const KDChart::BackgroundAttributes ba( area.backgroundAttributes() );
    const bool hasSimpleBrush = (
            ! area.frameAttributes().isVisible() &&
            ba.isVisible() &&
            ba.pixmapMode() == KDChart::BackgroundAttributes::BackgroundPixmapModeNone &&
            ba.brush().gradient() == 0 );
    if( bStart ){
        bStart = false;
        commonBrush = hasSimpleBrush ? ba.brush() : QBrush();
    }else{
        if( ! hasSimpleBrush || ba.brush() != commonBrush )
        {
            commonBrush = QBrush();
        }
    }
}

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