KissCount/lib/libkdchart/src/KDChartTextAttributes.cpp

266 lines
6.7 KiB
C++
Raw Normal View History

2012-01-28 15:54:17 +01:00
/****************************************************************************
** Copyright (C) 2001-2011 Klaralvdalens Datakonsult AB. All rights reserved.
**
** This file is part of the KD Chart library.
**
** Licensees holding valid commercial KD Chart licenses may use this file in
** accordance with the KD Chart Commercial License Agreement provided with
** the Software.
**
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 and version 3 as published by the
** Free Software Foundation and appearing in the file LICENSE.GPL.txt included.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** Contact info@kdab.com if any conditions of this licensing are not
** clear to you.
**
**********************************************************************/
#include "KDChartTextAttributes.h"
#include <QFont>
#include <QPen>
#include <qglobal.h>
#include <QApplication>
#include <KDABLibFakes>
#include <KDChartCartesianCoordinatePlane>
#define d d_func()
using namespace KDChart;
class TextAttributes::Private
{
friend class TextAttributes;
public:
Private();
private:
bool visible;
QFont font;
mutable QFont cachedFont;
mutable qreal cachedFontSize;
Measure fontSize;
Measure minimalFontSize;
bool autoRotate;
bool autoShrink;
int rotation;
QPen pen;
};
TextAttributes::Private::Private()
{
cachedFontSize = -1.0;
}
TextAttributes::TextAttributes()
: _d( new Private() )
{
setVisible( true );
setFont( QApplication::font() );
setAutoRotate( false );
setAutoShrink( false );
setRotation( 0 );
setPen( QPen( Qt::black ) );
}
TextAttributes::TextAttributes( const TextAttributes& r )
: _d( new Private( *r.d ) )
{
}
TextAttributes & TextAttributes::operator=( const TextAttributes& r )
{
if( this == &r )
return *this;
*d = *r.d;
return *this;
}
TextAttributes::~TextAttributes()
{
delete _d; _d = 0;
}
bool TextAttributes::operator==( const TextAttributes& r ) const
{
// the following works around a bug in gcc 4.3.2
// causing StyleHint to be set to Zero when copying a QFont
const QFont myFont( font() );
QFont r_font( r.font() );
r_font.setStyleHint( myFont.styleHint(), myFont.styleStrategy() );
/*
qDebug() << "\nTextAttributes::operator== :" << ( isVisible() == r.isVisible())
<< " font:"<<(myFont == r_font)
<< " fontSize:"<<(fontSize() == r.fontSize())
<< " minimalFontSize:"<<(minimalFontSize() == r.minimalFontSize())
<< (autoRotate() == r.autoRotate())
<< (autoShrink() == r.autoShrink())
<< (rotation() == rotation())
<< (pen() == r.pen());
*/
return ( isVisible() == r.isVisible() &&
myFont == r_font &&
fontSize() == r.fontSize() &&
minimalFontSize() == r.minimalFontSize() &&
autoRotate() == r.autoRotate() &&
autoShrink() == r.autoShrink() &&
rotation() == r.rotation() &&
pen() == r.pen() );
}
void TextAttributes::setVisible( bool visible )
{
d->visible = visible;
}
bool TextAttributes::isVisible() const
{
return d->visible;
}
void TextAttributes::setFont( const QFont& font )
{
d->font = font;
d->cachedFont = font; // note: we do not set the font's size here, but in calculatedFont()
//qDebug() << "resetting cached font size";
d->cachedFontSize = -1.0;
}
QFont TextAttributes::font() const
{
return d->font;
}
void TextAttributes::setFontSize( const Measure & measure )
{
d->fontSize = measure;
}
Measure TextAttributes::fontSize() const
{
return d->fontSize;
}
void TextAttributes::setMinimalFontSize( const Measure & measure )
{
d->minimalFontSize = measure;
}
Measure TextAttributes::minimalFontSize() const
{
return d->minimalFontSize;
}
bool TextAttributes::hasAbsoluteFontSize() const
{
return d->fontSize.calculationMode() == KDChartEnums::MeasureCalculationModeAbsolute
&& d->minimalFontSize.calculationMode() == KDChartEnums::MeasureCalculationModeAbsolute;
}
#if QT_VERSION < 0x040400 || defined(Q_COMPILER_MANGLES_RETURN_TYPE)
const
#endif
qreal TextAttributes::calculatedFontSize(
const QObject* autoReferenceArea,
KDChartEnums::MeasureOrientation autoReferenceOrientation ) const
{
const qreal normalSize = fontSize().calculatedValue( autoReferenceArea, autoReferenceOrientation );
const qreal minimalSize = minimalFontSize().calculatedValue( autoReferenceArea, autoReferenceOrientation );
//qDebug() << "TextAttributes::calculatedFontSize() finds" << normalSize << "and" << minimalSize;
return qMax( normalSize, minimalSize );
}
const QFont TextAttributes::calculatedFont(
const QObject* autoReferenceArea,
KDChartEnums::MeasureOrientation autoReferenceOrientation ) const
{
const CartesianCoordinatePlane* plane = dynamic_cast<const CartesianCoordinatePlane*>( autoReferenceArea );
static qreal size = calculatedFontSize( autoReferenceArea, autoReferenceOrientation );
if ( plane )
{
if(!plane->hasFixedDataCoordinateSpaceRelation())
size = calculatedFontSize( autoReferenceArea, autoReferenceOrientation );
}
else
size = calculatedFontSize( autoReferenceArea, autoReferenceOrientation );
if( size > 0.0 && d->cachedFontSize != size ){
//qDebug() << "new into the cache:" << size;
d->cachedFontSize = size;
d->cachedFont.setPointSizeF( d->cachedFontSize );
}
return d->cachedFont;
}
void TextAttributes::setAutoRotate( bool autoRotate )
{
d->autoRotate = autoRotate;
}
bool TextAttributes::autoRotate() const
{
return d->autoRotate;
}
void TextAttributes::setAutoShrink( bool autoShrink )
{
d->autoShrink = autoShrink;
}
bool TextAttributes::autoShrink() const
{
return d->autoShrink;
}
void TextAttributes::setRotation( int rotation )
{
d->rotation = rotation;
}
int TextAttributes::rotation() const
{
return d->rotation;
}
void TextAttributes::setPen( const QPen& pen )
{
d->pen = pen;
}
QPen TextAttributes::pen() const
{
return d->pen;
}
#if !defined(QT_NO_DEBUG_STREAM)
QDebug operator<<(QDebug dbg, const KDChart::TextAttributes& ta)
{
dbg << "KDChart::TextAttributes("
<< "visible="<<ta.isVisible()
<< "font="<<ta.font().toString() /* What? No QDebug for QFont? */
<< "fontsize="<<ta.fontSize()
<< "minimalfontsize="<<ta.minimalFontSize()
<< "autorotate="<<ta.autoRotate()
<< "autoshrink="<<ta.autoShrink()
<< "rotation="<<ta.rotation()
<< "pen="<<ta.pen()
<< ")";
return dbg;
}
#endif /* QT_NO_DEBUG_STREAM */