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142 lines
4.7 KiB
142 lines
4.7 KiB
/***************************************************************************
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* Copyright (C) 2000 Ronny Standtke <Ronny.Standtke@gmx.de> *
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* (C) 2005 Gábor Lehel <illissius@gmail.com> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Steet, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#include "squeezedtextlabel.h"
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#include <qsimplerichtext.h>
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#include <qwindowdefs.h> //QCOORD_MAX
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#include <qtooltip.h>
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#include <kdebug.h>
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namespace KDE {
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SqueezedTextLabel::SqueezedTextLabel( const QString &text , QWidget *parent, const char *name )
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: QLabel ( parent, name ) {
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setSizePolicy(QSizePolicy( QSizePolicy::Expanding, QSizePolicy::Fixed ));
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fullText = text;
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squeezeTextToLabel();
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}
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SqueezedTextLabel::SqueezedTextLabel( QWidget *parent, const char *name )
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: QLabel ( parent, name ) {
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setSizePolicy(QSizePolicy( QSizePolicy::Expanding, QSizePolicy::Fixed ));
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}
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void SqueezedTextLabel::resizeEvent( QResizeEvent * ) {
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squeezeTextToLabel();
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}
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QSize SqueezedTextLabel::minimumSizeHint() const
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{
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QSize sh = QLabel::minimumSizeHint();
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sh.setWidth(-1);
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return sh;
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}
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QSize SqueezedTextLabel::sizeHint() const
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{
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return QSize(contentsRect().width(), QLabel::sizeHint().height());
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}
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void SqueezedTextLabel::setText( const QString &text ) {
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fullText = text;
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squeezeTextToLabel();
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}
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//QSimpleRichText suck
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//in more detail, we only want the widthUsed(), which doesn't normally work, see below
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class MySimpleRichText: public QSimpleRichText
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{
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public:
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MySimpleRichText( const QString &text, const QFont &font )
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: QSimpleRichText( text, font )
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{
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setWidth( QCOORD_MAX ); //by default it's like 150-something, always. wtf?
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}
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};
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void SqueezedTextLabel::squeezeTextToLabel()
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{
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if( MySimpleRichText( fullText, font() ).widthUsed() > width() )
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{
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QString text;
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const int w = width() - fontMetrics().width( "..." );
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if( w < 0 )
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{
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text = "..";
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while( fontMetrics().width( text ) > width() && !text.isEmpty() )
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text.remove( text.length() - 1, 1);
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}
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else
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{
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text = fullText;
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do
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{
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int pos = text.length() - 1;
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bool breakagain = false; //isn't there a better way to handle this?
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while( text[pos] == '>' ) //don't remove parts of <tags>, it's not nice
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{
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const int lpos = pos;
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while( text[pos] != '<' && pos >= 0 )
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--pos;
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if( pos == 0 ) //text is only tags
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{
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breakagain = true;
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break;
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}
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else
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--pos;
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if( pos < 0 ) //didn't find an opening <
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{
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pos = lpos;
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break;
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}
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}
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if( breakagain )
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break;
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text.remove( pos, 1 ); //paranoia
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} while( MySimpleRichText( text, font() ).widthUsed() > w && !text.isEmpty() );
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text += "...";
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}
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QLabel::setText( text );
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QToolTip::remove( this );
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QToolTip::add( this, fullText );
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}
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else
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{
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QLabel::setText( fullText );
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QToolTip::remove( this );
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QToolTip::hide();
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}
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}
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void SqueezedTextLabel::setAlignment( int alignment )
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{
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// save fullText and restore it
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QString tmpFull(fullText);
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QLabel::setAlignment(alignment);
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fullText = tmpFull;
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}
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}
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#include "squeezedtextlabel.moc"
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