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k3b/libk3b/tools/k3brichtextlabel.cpp

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/*
*
* $Id: k3brichtextlabel.cpp 619556 2007-01-03 17:38:12Z trueg $
* Copyright (C) 2005 Waldo Bastian <bastian@kde.org>
*
* This file is part of the K3b project.
* Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* See the file "COPYING" for the exact licensing terms.
*/
#include "k3brichtextlabel.h"
#include <qtooltip.h>
#include <qstylesheet.h>
#include <qsimplerichtext.h>
#include <kglobalsettings.h>
static QString qrichtextify( const QString& text )
{
if ( text.isEmpty() || text[0] == '<' )
return text;
QStringList lines = QStringList::split('\n', text);
for(QStringList::Iterator it = lines.begin(); it != lines.end(); ++it)
{
*it = QStyleSheet::convertFromPlainText( *it, QStyleSheetItem::WhiteSpaceNormal );
}
return lines.join(QString::null);
}
K3bRichTextLabel::K3bRichTextLabel( const QString &text , QWidget *parent, const char *name )
: QLabel ( parent, name ) {
m_defaultWidth = QMIN(400, KGlobalSettings::desktopGeometry(this).width()*2/5);
setAlignment( Qt::WordBreak );
setText(text);
}
K3bRichTextLabel::K3bRichTextLabel( QWidget *parent, const char *name )
: QLabel ( parent, name ) {
m_defaultWidth = QMIN(400, KGlobalSettings::desktopGeometry(this).width()*2/5);
setAlignment( Qt::WordBreak );
}
void K3bRichTextLabel::setDefaultWidth(int defaultWidth)
{
m_defaultWidth = defaultWidth;
updateGeometry();
}
QSizePolicy K3bRichTextLabel::sizePolicy() const
{
return QSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Minimum, false);
}
QSize K3bRichTextLabel::minimumSizeHint() const
{
QString qt_text = qrichtextify( text() );
int pref_width = 0;
int pref_height = 0;
QSimpleRichText rt(qt_text, font());
pref_width = m_defaultWidth;
rt.setWidth(pref_width);
int used_width = rt.widthUsed();
if (used_width <= pref_width)
{
while(true)
{
int new_width = (used_width * 9) / 10;
rt.setWidth(new_width);
int new_height = rt.height();
if (new_height > pref_height)
break;
used_width = rt.widthUsed();
if (used_width > new_width)
break;
}
pref_width = used_width;
}
else
{
if (used_width > (pref_width *2))
pref_width = pref_width *2;
else
pref_width = used_width;
}
return QSize(pref_width, rt.height());
}
QSize K3bRichTextLabel::sizeHint() const
{
return minimumSizeHint();
}
void K3bRichTextLabel::setText( const QString &text ) {
QLabel::setText(text);
}
void K3bRichTextLabel::virtual_hook( int, void* )
{ /*BASE::virtual_hook( id, data );*/ }
#include "k3brichtextlabel.moc"