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colorlistbox.cpp
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colorlistbox.cpp
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/*
* This file is part of libkdepim.
*
* Copyright (C) 2000 Espen Sand, espen@kde.org
* Copyright (C) 2007 Mathias Soeken, msoeken@tzi.de
*
* 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.
*
* 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 "colorlistbox.h"
#include <KColorDialog>
#include <KColorMimeData>
#include <QDragEnterEvent>
#include <QDragLeaveEvent>
#include <QDragMoveEvent>
#include <QDropEvent>
#include <QHeaderView>
#include <QStringList>
namespace KPIM {
ColorListBox::ColorListBox( QWidget *parent )
: QTreeWidget( parent ), mCurrentOnDragEnter( 0L )
{
setColumnCount( 1 );
setRootIsDecorated( false );
header()->hide();
connect( this, SIGNAL(doubleClicked(const QModelIndex&)), this, SLOT(newColor(const QModelIndex&)) );
setAcceptDrops( true );
}
void ColorListBox::addColor( const QString& text, const QColor& color )
{
QTreeWidgetItem *item = new QTreeWidgetItem( QStringList() << text );
item->setData( 0, Qt::DecorationRole, color );
addTopLevelItem( item );
}
void ColorListBox::setColor( int index, const QColor &color )
{
if (index < model()->rowCount()) {
topLevelItem( index )->setData( 0, Qt::DecorationRole, color );
emit changed();
}
}
QColor ColorListBox::color( int index ) const
{
if (index < model()->rowCount()) {
return topLevelItem( index )->data( 0, Qt::DecorationRole ).value<QColor>();
} else {
return Qt::black;
}
}
void ColorListBox::newColor( const QModelIndex& index )
{
if( !isEnabled() )
{
return;
}
if (index.isValid()) {
QColor c = color( index.row() );
if (KColorDialog::getColor(c, this) != QDialog::Rejected) {
setColor( index.row(), c );
}
}
}
void ColorListBox::dragEnterEvent( QDragEnterEvent *e )
{
if (KColorMimeData::canDecode( e->mimeData() ) && isEnabled()) {
mCurrentOnDragEnter = currentItem();
e->setAccepted( true );
}
else {
mCurrentOnDragEnter = 0L;
e->setAccepted( false );
}
}
void ColorListBox::dragLeaveEvent( QDragLeaveEvent * )
{
if (mCurrentOnDragEnter) {
setCurrentItem( mCurrentOnDragEnter );
mCurrentOnDragEnter = 0L;
}
}
void ColorListBox::dragMoveEvent( QDragMoveEvent *e )
{
if (KColorMimeData::canDecode( e->mimeData() ) && isEnabled()) {
QTreeWidgetItem *item = itemAt( e->pos() );
if ( item ) {
setCurrentItem( item );
}
}
}
void ColorListBox::dropEvent( QDropEvent *e )
{
QColor color = KColorMimeData::fromMimeData( e->mimeData() );
if (color.isValid()) {
QTreeWidgetItem *item = currentItem();
if ( item ) {
item->setData( 0, Qt::DecorationRole, color );
emit changed();
}
mCurrentOnDragEnter = 0L;
}
}
}
#include "colorlistbox.moc"

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