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/* This file is part of the KDE libraries and the Kate part.
*
* Copyright (C) 2007 David Nolden <david.nolden.kdevelop@art-master.de>
*
* 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; either
* version 2 of the License, or (at your option) any later version.
*
* 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 "expandingtree.h"
#include <QTextLayout>
#include <QTextDocument>
#include <QAbstractTextDocumentLayout>
#include <QPainter>
#include <kdebug.h>
#include "expandingwidgetmodel.h"
ExpandingTree::ExpandingTree(QWidget* parent) : QTreeView(parent) {
m_drawText.documentLayout()->setPaintDevice(this);
setUniformRowHeights(false);
}
void ExpandingTree::drawRow ( QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index ) const {
QTreeView::drawRow( painter, option, index );
const ExpandingWidgetModel* eModel = qobject_cast<const ExpandingWidgetModel*>(model());
if( eModel && eModel->isPartiallyExpanded( index ) )
{
QRect rect = eModel->partialExpandRect( index );
if( rect.isValid() )
{
painter->fillRect(rect,QBrush(0xffffffff));
QAbstractTextDocumentLayout::PaintContext ctx;
// since arbitrary HTML can be shown use a black on white color scheme here
ctx.palette = QPalette( Qt::black, Qt::white );
ctx.clip = QRectF(0,0,rect.width(),rect.height());;
painter->setViewTransformEnabled(true);
painter->translate(rect.left(), rect.top());
m_drawText.setHtml( eModel->partialExpandText( index ) );
m_drawText.setPageSize(QSizeF(rect.width(), rect.height()));
m_drawText.documentLayout()->draw( painter, ctx );
painter->translate(-rect.left(), -rect.top());
}
}
}
int ExpandingTree::sizeHintForColumn ( int column ) const {
return columnWidth( column );
}
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