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-rw-r--r--libkdchart/KDChartTextPiece.cpp292
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diff --git a/libkdchart/KDChartTextPiece.cpp b/libkdchart/KDChartTextPiece.cpp
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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 info@klaralvdalens-datakonsult.se 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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