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kdhorizontalline.cpp
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kdhorizontalline.cpp
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/* -*- Mode: C++ -*-
KD Tools - a set of useful widgets for Qt
*/
/****************************************************************************
** Copyright (C) 2005 Klar�vdalens Datakonsult AB. All rights reserved.
**
** This file is part of the KD Tools 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 KD Tools licenses may use this file in
** accordance with the KD Tools 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 KD Tools Commercial License Agreements.
**
** Contact info@klaralvdalens-datakonsult.se if any conditions of this
** licensing are not clear to you.
**
** In addition, as a special exception, the copyright holders give
** permission to link the code of this program with any edition of the
** Qt library by Trolltech AS, Norway (or with modified versions of Qt
** that use the same license as Qt), and distribute linked
** combinations including the two. You must obey the GNU General
** Public License in all respects for all of the code used other than
** Qt. If you modify this file, you may extend this exception to your
** version of the file, but you are not obligated to do so. If you do
** not wish to do so, delete this exception statement from your
** version.
**
**********************************************************************/
#include "kdhorizontalline.h"
#include <qstyle.h>
#include <qpainter.h>
#ifdef QT_ACCESSIBILITY_SUPPORT
#include <qaccessible.h>
#endif
#include <qfontmetrics.h>
#include <qapplication.h>
//Added by qt3to4:
#include <QPaintEvent>
#include <Q3Frame>
KDHorizontalLine::KDHorizontalLine( QWidget * parent, const char * name, Qt::WFlags f )
: Q3Frame( parent, name, f ),
mAlign( Qt::AlignLeft ),
mLenVisible( 0 )
{
Q3Frame::setFrameStyle( HLine | Sunken );
}
KDHorizontalLine::KDHorizontalLine( const QString & title, QWidget * parent, const char * name, Qt::WFlags f )
: Q3Frame( parent, name, f ),
mAlign( Qt::AlignLeft ),
mLenVisible( 0 )
{
Q3Frame::setFrameStyle( HLine | Sunken );
setTitle( title );
}
KDHorizontalLine::~KDHorizontalLine() {}
void KDHorizontalLine::setFrameStyle( int style ) {
Q3Frame::setFrameStyle( ( style & ~MShape ) | HLine ); // force HLine
}
void KDHorizontalLine::setTitle( const QString & title ) {
if ( mTitle == title )
return;
mTitle = title;
calculateFrame();
update();
updateGeometry();
#ifdef QT_ACCESSIBILITY_SUPPORT
QAccessible::updateAccessibility( this, 0, QAccessible::NameChanged );
#endif
}
void KDHorizontalLine::calculateFrame() {
mLenVisible = mTitle.length();
#if 0
if ( mLenVisible ) {
const QFontMetrics fm = fontMetrics();
while ( mLenVisible ) {
const int tw = fm.width( mTitle, mLenVisible ) + 4*fm.width(QChar(' '));
if ( tw < width() )
break;
mLenVisible--;
}
qDebug( "mLenVisible = %d (of %d)", mLenVisible, mTitle.length() );
if ( mLenVisible ) { // but do we also have a visible label?
QRect r = rect();
const int va = style().styleHint( QStyle::SH_GroupBox_TextLabelVerticalAlignment, this );
if( va & Qt::AlignVCenter )
r.setTop( fm.height() / 2 ); // frame rect should be
else if( va & Qt::AlignTop )
r.setTop( fm.ascent() );
setFrameRect( r ); // smaller than client rect
return;
}
}
// no visible label
setFrameRect( QRect(0,0,0,0) ); // then use client rect
#endif
}
QSizePolicy KDHorizontalLine::sizePolicy() const {
return QSizePolicy( QSizePolicy::Minimum, QSizePolicy::Fixed );
}
QSize KDHorizontalLine::sizeHint() const {
return minimumSizeHint();
}
QSize KDHorizontalLine::minimumSizeHint() const {
const int w = fontMetrics().width( mTitle, mLenVisible ) +
fontMetrics().width( QChar( ' ' ) );
const int h = fontMetrics().height();
return QSize( qMax( w, indentHint() ), h ).expandedTo( qApp->globalStrut() );
}
void KDHorizontalLine::paintEvent( QPaintEvent * e ) {
QPainter paint( this );
if ( mLenVisible ) { // draw title
const QFontMetrics & fm = paint.fontMetrics();
const int h = fm.height();
const int tw = fm.width( mTitle, mLenVisible ) + fm.width(QChar(' '));
int x;
if ( mAlign & Qt::AlignHCenter ) // center alignment
x = frameRect().width()/2 - tw/2;
else if ( mAlign & Qt::AlignRight ) // right alignment
x = frameRect().width() - tw;
else if ( mAlign & Qt::AlignLeft ) // left alignment
x = 0;
else { // auto align
if( QApplication::reverseLayout() )
x = frameRect().width() - tw;
else
x = 0;
}
QRect r( x, 0, tw, h );
int va = style()->styleHint( QStyle::SH_GroupBox_TextLabelVerticalAlignment, 0, this );
if ( va & Qt::AlignTop )
r.moveBy( 0, fm.descent() );
const QColor pen( (QRgb) style()->styleHint( QStyle::SH_GroupBox_TextLabelColor, 0, this ) );
#if QT_VERSION >= 0x030300
if ( !style()->styleHint( QStyle::SH_UnderlineShortcut, 0, this ) )
va |= Qt::TextHideMnemonic;
#endif
style()->drawItemText( &paint, r, Qt::TextShowMnemonic | Qt::AlignHCenter | va, palette(),
isEnabled(), mTitle );
paint.setClipRegion( e->region().subtract( r ) ); // clip everything but title
}
drawFrame( &paint );
drawContents( &paint );
}
// static
int KDHorizontalLine::indentHint() {
return 30;
}
#include "kdhorizontalline.moc"

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