KD Chart 2
[rev.2.5]
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00001 /**************************************************************************** 00002 ** Copyright (C) 2001-2012 Klaralvdalens Datakonsult AB. All rights reserved. 00003 ** 00004 ** This file is part of the KD Chart library. 00005 ** 00006 ** Licensees holding valid commercial KD Chart licenses may use this file in 00007 ** accordance with the KD Chart Commercial License Agreement provided with 00008 ** the Software. 00009 ** 00010 ** 00011 ** This file may be distributed and/or modified under the terms of the 00012 ** GNU General Public License version 2 and version 3 as published by the 00013 ** Free Software Foundation and appearing in the file LICENSE.GPL.txt included. 00014 ** 00015 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE 00016 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 00017 ** 00018 ** Contact info@kdab.com if any conditions of this licensing are not 00019 ** clear to you. 00020 ** 00021 **********************************************************************/ 00022 00023 #include "KDTextDocument.h" 00024 #include <QRect> 00025 #include <QAbstractTextDocumentLayout> 00026 #include <QtDebug> 00027 #include <QTextBlock> 00028 00029 #include <KDABLibFakes> 00030 00031 // This is an internal class that mimicks some of the behavior of a 00032 // QLabel with rich text assigned, this is mostly a workaround around 00033 // QTextDocumentLayout not being a public class. 00034 00035 KDTextDocument::KDTextDocument( QObject * p ) 00036 : QTextDocument( p ), 00037 mHintValid( false ), 00038 mSizeHint(), 00039 mMinimumSizeHint() 00040 { 00041 00042 } 00043 00044 KDTextDocument::KDTextDocument( const QString & text, QObject * p ) 00045 : QTextDocument( text, p ), 00046 mHintValid( false ), 00047 mSizeHint(), 00048 mMinimumSizeHint() 00049 { 00050 00051 } 00052 00053 KDTextDocument::~KDTextDocument() {} 00054 00055 00056 QSize KDTextDocument::sizeHint() 00057 { 00058 if( !mHintValid ) 00059 (void)minimumSizeHint(); 00060 return mSizeHint; 00061 } 00062 00063 QSize KDTextDocument::minimumSizeHint() 00064 { 00065 /* 00066 QTextCursor cursor( this ); 00067 if( ! cursor.atEnd() ) 00068 cursor.movePosition( QTextCursor::NextBlock ); 00069 qDebug() << "KDTextDocument::minimumSizeHint() found:" << cursor.block().text(); 00070 QSizeF s( documentLayout()->blockBoundingRect( cursor.block() ).size() ); 00071 qDebug() << "KDTextDocument::minimumSizeHint() found rect" << documentLayout()->blockBoundingRect( cursor.block()); 00072 return QSize( static_cast<int>(s.width()), 00073 static_cast<int>(s.height()) ); 00074 */ 00075 00076 if( mHintValid ) 00077 return mMinimumSizeHint; 00078 00079 mHintValid = true; 00080 mSizeHint = sizeForWidth( -1 ); 00081 QSize sz(-1, -1); 00082 00083 // PENDING(kalle) Cache 00084 sz.rwidth() = sizeForWidth( 0 ).width(); 00085 sz.rheight() = sizeForWidth( 32000 ).height(); 00086 if( mSizeHint.height() < sz.height()) 00087 sz.rheight() = mSizeHint.height(); 00088 00089 mMinimumSizeHint = sz; 00090 return sz; 00091 } 00092 00093 00094 QSize KDTextDocument::sizeForWidth(int w) 00095 { 00096 Q_UNUSED( w ); 00097 00098 setPageSize(QSize(0, 100000)); 00099 00100 return documentLayout()->documentSize().toSize(); 00101 }