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/* -*- Mode: C++ -*-
KDChart - a multi-platform charting engine
*/
/****************************************************************************
** Copyright (C) 2001-2003 Klarälvdalens Datakonsult AB. All rights reserved.
**
** This file is part of the KDChart library.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid commercial KDChart licenses may use this file in
** accordance with the KDChart Commercial License Agreement provided with
** the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.klaralvdalens-datakonsult.se/?page=products for
** information about KDChart Commercial License Agreements.
**
** Contact [email protected] if any conditions of this
** licensing are not clear to you.
**
**********************************************************************/
#include "KDChartTextPiece.h"
#include <qstylesheet.h>
#include <qsimplerichtext.h>
#include <qfontmetrics.h>
#include <qpainter.h>
#include <qapplication.h>
#include <qrect.h>
KDChartTextPiece::KDChartTextPiece()
:QObject(0)
{
_isRichText = false;
_richText = 0;
_font = QApplication::font();
// These three are needed for both
_metrics = new QFontMetrics( _font );
_dirtyMetrics = true;
_text = QString("");
}
KDChartTextPiece::KDChartTextPiece( const QString& text, const QFont& font )
:QObject(0)
{
if( QStyleSheet::mightBeRichText( text ) ) {
_isRichText = true;
_richText = new QSimpleRichText( text, font );
_richText->adjustSize();
} else {
_isRichText = false;
_richText = 0;
}
// These three are needed for both
_metrics = new QFontMetrics( font );
_dirtyMetrics = true;
_text = text;
_font = font;
}
KDChartTextPiece::KDChartTextPiece( QPainter *p, const QString& text, const QFont& font )
:QObject(0)
{
if( QStyleSheet::mightBeRichText( text ) ) {
_isRichText = true;
_richText = new QSimpleRichText( text, font );
//qDebug( "richtext width %s", QString::number(_richText->width()).latin1());
//qDebug( "richtext height %s", QString::number(_richText->height()).latin1());
_richText->adjustSize();
//qDebug( "richtext width %s", QString::number(_richText->width()).latin1());
//qDebug( "richtext height %s", QString::number(_richText->height()).latin1());
} else {
_isRichText = false;
_richText = 0;
}
// These three are needed for both
_dirtyMetrics = (p == 0);
if( _dirtyMetrics ) {
_metrics = new QFontMetrics( font );
//qDebug("dirty metrics text: %s", text.latin1());
}
else{
p->save();
p->setFont( font );
_metrics = new QFontMetrics( p->fontMetrics() );
//qDebug ( "drawing metrics text: %s", text.latin1() );
//p->drawRect( _metrics->boundingRect( text) );
//p->drawText( _metrics->boundingRect(text).bottomRight(), text);
p->restore();
}
_text = text;
_font = font;
}
void KDChartTextPiece::deepCopy( const KDChartTextPiece* source )
{
if( !source || this == source )
return;
if( _richText )
delete _richText;
_isRichText = source->_isRichText;
if( source->_richText ) {
_richText = new QSimpleRichText( source->_text, source->_font );
_richText->adjustSize();
}
else
_richText = 0;
// used for both
if( _metrics )
delete _metrics;
_metrics = new QFontMetrics( *source->_metrics );
_dirtyMetrics = source->_dirtyMetrics;
_text = source->_text;
_font = source->_font;
}
const KDChartTextPiece* KDChartTextPiece::clone() const
{
KDChartTextPiece* newPiece = new KDChartTextPiece();
newPiece->deepCopy( this );
return newPiece;
}
KDChartTextPiece::~KDChartTextPiece()
{
if( _richText )
delete _richText;
if( _metrics )
delete _metrics;
}
int KDChartTextPiece::width() const
{
if( _isRichText )
return _richText->widthUsed();
else
return _metrics->width( _text );
}
int KDChartTextPiece::height() const
{
if( _isRichText ) {
//qDebug ("_richText height %s", QString::number(_richText->height()).latin1());
return _richText->height();
}
else {
//qDebug ("_metrics height %s", QString::number(_metrics->height()).latin1());
return _metrics->height();
}
}
int KDChartTextPiece::fontLeading() const
{
return _metrics->leading();
}
QRect KDChartTextPiece::rect( QPainter *p, const QRect& clipRect) const
{
QRect rect( clipRect );
QFont font( _font );
if( _isRichText ) {
// Pending Michel make sure the fonts are not too large
if ( _richText->height() > clipRect.height() || _richText->width() > clipRect.width() )
font.setPixelSize( QMIN( (int)clipRect.width(),(int)clipRect.height() ) );
_richText->setDefaultFont( font );
_richText->setWidth( p, clipRect.width() );
rect.setWidth( _richText->width() );
rect.setHeight( _richText->height() );
} else
rect = clipRect;
return rect;
}
void KDChartTextPiece::draw( QPainter *p, int x, int y,
const QRect& clipRect,
const QColor& color,
const QBrush* paper ) const
{
if( _isRichText ) {
QColorGroup cg;
//calculate the text area before drawing
QRect txtArea = rect( p,clipRect);
cg.setColor( QColorGroup::Text, color );
_richText->draw( p, txtArea.x(), txtArea.y(),txtArea , cg, paper );
} else {
p->save();
p->setFont( _font );
if( paper )
p->setBrush( *paper );
p->setPen( color );
//dont clip to avoid truncated text
//p->setClipRect( txtArea );
if( _dirtyMetrics ){
if( _metrics )
delete _metrics;
KDChartTextPiece* meNotConst = const_cast<KDChartTextPiece*>(this);
//KDChartTextPiece* meNotConst(const_cast<KDChartTextPiece*>(this));
meNotConst->_metrics = new QFontMetrics( p->fontMetrics() );
meNotConst->_dirtyMetrics = false;
}
p->drawText( x, y + _metrics->ascent(), _text );
p->restore();
}
}
void KDChartTextPiece::draw( QPainter *p, int x, int y,
const QRegion& clipRegion,
const QColor& color,
const QBrush* paper ) const
{
if( _isRichText ) {
QColorGroup cg;
cg.setColor( QColorGroup::Text, color );
_richText->setDefaultFont( _font );
_richText->setWidth( p, clipRegion.boundingRect().width() );
_richText->draw( p, x, y, clipRegion, cg, paper );
} else {
p->save();
p->setFont( _font );
if( paper )
p->setBrush( *paper );
p->setPen( color );
p->setClipRegion( clipRegion );
if( _dirtyMetrics ){
if( _metrics )
delete _metrics;
// this line does not compile with MSVC++:
// KDChartTextPiece* meNotConst( const_cast<KDChartTextPiece*>(this) );
KDChartTextPiece* meNotConst = const_cast<KDChartTextPiece*>(this);
meNotConst->_metrics = new QFontMetrics( p->fontMetrics() );
meNotConst->_dirtyMetrics = false;
}
p->drawText( x, y + _metrics->ascent(), _text );
p->restore();
}
}
QString KDChartTextPiece::text() const
{
return _text;
}
QFont KDChartTextPiece::font() const
{
return _font;
}
bool KDChartTextPiece::isRichText() const
{
return _isRichText;
}
#include "KDChartTextPiece.moc"
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