kactivelabel.cpp
/* This file is part of the KDE libraries
Copyright (C) 1999 Waldo Bastian (bastian@kde.org)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; version 2
of the License.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "kactivelabel.h"
#include <kapplication.h>
#include <qregexp.h>
#include <qwhatsthis.h>
#include <qsimplerichtext.h>
#include <kdebug.h>
KActiveLabel::KActiveLabel(QWidget * parent, const char * name)
: QTextBrowser(parent, name)
{
init();
}
KActiveLabel::KActiveLabel(const QString &text, QWidget * parent, const char * name)
: QTextBrowser(parent, name)
{
init();
setText(text);
}
void KActiveLabel::init()
{
setTextFormat(Qt::RichText);
setVScrollBarMode(QScrollView::AlwaysOff);
setHScrollBarMode(QScrollView::AlwaysOff);
setFrameStyle(QFrame::NoFrame);
setFocusPolicy( QWidget::TabFocus );
paletteChanged();
connect(this, SIGNAL(linkClicked(const QString &)),
this, SLOT(openLink(const QString &)));
if (kapp)
{
connect(kapp, SIGNAL(kdisplayPaletteChanged()),
this, SLOT(paletteChanged()));
}
}
void KActiveLabel::paletteChanged()
{
QPalette p = kapp ? kapp->palette() : palette();
p.setBrush(QColorGroup::Base, p.brush(QPalette::Normal, QColorGroup::Background));
p.setColor(QColorGroup::Text, p.color(QPalette::Normal, QColorGroup::Foreground));
setPalette(p);
}
void KActiveLabel::openLink(const QString & link)
{
QRegExp whatsthis("whatsthis:/*([^/].*)");
if (whatsthis.exactMatch(link)) {
QWhatsThis::display(whatsthis.cap(1));
return;
}
QStringList args;
args << "exec" << link;
kapp->kdeinitExec("kfmclient", args);
}
void KActiveLabel::virtual_hook( int, void* )
{ /*BASE::virtual_hook( id, data );*/ }
void KActiveLabel::focusInEvent( QFocusEvent* fe )
{
QTextBrowser::focusInEvent(fe);
if(fe->reason() == QFocusEvent::Tab || fe->reason() == QFocusEvent::Backtab)
selectAll(true);
}
void KActiveLabel::focusOutEvent( QFocusEvent* fe )
{
QTextBrowser::focusOutEvent(fe);
if(fe->reason() == QFocusEvent::Tab || fe->reason() == QFocusEvent::Backtab)
selectAll(false);
}
void KActiveLabel::keyPressEvent( QKeyEvent *e )
{
switch ( e->key() )
{
case Key_Down:
case Key_Up:
case Key_Left:
case Key_Right:
// jump over QTextEdit's key navigation breakage.
// we're not interested in keyboard navigation within the text
QWidget::keyPressEvent( e );
break;
default:
QTextBrowser::keyPressEvent( e );
}
}
QSize KActiveLabel::minimumSizeHint() const
{
QSize ms = minimumSize();
if ((ms.width() > 0) && (ms.height() > 0))
return ms;
int w = 400;
if (ms.width() > 0)
w = ms.width();
QString txt = text();
QSimpleRichText rt(txt, font());
rt.setWidth(w - 2*frameWidth() - 10);
w = 10 + rt.widthUsed() + 2*frameWidth();
if (w < ms.width())
w = ms.width();
int h = rt.height() + 2*frameWidth();
if ( h < ms.height())
h = ms.height();
return QSize(w, h);
}
QSize KActiveLabel::sizeHint() const
{
return minimumSizeHint();
}
#include "kactivelabel.moc"
KActiveLabel::KActiveLabel
KActiveLabel(QWidget *parent, const char *name=0)
Constructor.
Definition: kactivelabel.cpp:28
KStdAccel::selectAll
const KShortcut & selectAll()
KActiveLabel::openLink
virtual void openLink(const QString &link)
Opens link in the default browser.
Definition: kactivelabel.cpp:67

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