kde-playground/kdepim/pimcommon/widgets/customtreeview.cpp
2015-04-14 21:49:29 +00:00

93 lines
2.3 KiB
C++

/*
Copyright (c) 2013, 2014 Montel Laurent <montel@kde.org>
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License, version 2, as
published by the Free Software Foundation.
This program 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
General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "customtreeview.h"
#include <KGlobalSettings>
#include <QPainter>
using namespace PimCommon;
CustomTreeView::CustomTreeView(QWidget *parent)
: QTreeWidget(parent),
mShowDefaultText(true)
{
connect( KGlobalSettings::self(), SIGNAL(kdisplayFontChanged()),
this, SLOT(slotGeneralFontChanged()));
connect( KGlobalSettings::self(), SIGNAL(kdisplayPaletteChanged()),
this, SLOT(slotGeneralPaletteChanged()));
}
CustomTreeView::~CustomTreeView()
{
}
void CustomTreeView::setShowDefaultText(bool b)
{
if (mShowDefaultText != b) {
mShowDefaultText = b;
update();
}
}
bool CustomTreeView::showDefaultText() const
{
return mShowDefaultText;
}
void CustomTreeView::setDefaultText(const QString &text)
{
if (mDefaultText != text) {
mDefaultText = text;
update();
}
}
void CustomTreeView::slotGeneralPaletteChanged()
{
const QPalette palette = viewport()->palette();
QColor color = palette.text().color();
color.setAlpha( 128 );
mTextColor = color;
}
void CustomTreeView::slotGeneralFontChanged()
{
setFont( KGlobalSettings::generalFont() );
}
void CustomTreeView::paintEvent( QPaintEvent *event )
{
if ( mShowDefaultText && !mDefaultText.isEmpty() ) {
QPainter p( viewport() );
QFont font = p.font();
font.setItalic( true );
p.setFont( font );
if (!mTextColor.isValid()) {
slotGeneralPaletteChanged();
}
p.setPen( mTextColor );
p.drawText( QRect( 0, 0, width(), height() ), Qt::AlignCenter, mDefaultText );
} else {
QTreeWidget::paintEvent(event);
}
}