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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 <QAbstractProxyModel>
#include <QAbstractTextDocumentLayout>
#include <QPainter>
#include "expandingwidgetmodel.h"
#include <util/path.h>
#include <util/widgetcolorizer.h>
using namespace KDevelop;
ExpandingTree::ExpandingTree(QWidget* parent) : QTreeView(parent)
{
m_drawText.documentLayout()->setPaintDevice(this);
setUniformRowHeights(false);
}
void ExpandingTree::setModel(QAbstractItemModel* model)
{
Q_ASSERT(!model || qobject_cast<const ExpandingWidgetModel*>(
qobject_cast<const QAbstractProxyModel*>(model)->sourceModel())
);
QTreeView::setModel(model);
}
void ExpandingTree::drawRow(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const
{
QTreeView::drawRow(painter, option, index);
const auto* eModel = qobject_cast<const ExpandingWidgetModel*>(qobject_cast<const QAbstractProxyModel*>(model())->sourceModel());
Q_ASSERT(eModel);
const QModelIndex sourceIndex = eModel->mapToSource(index);
if (eModel->isPartiallyExpanded(sourceIndex) != ExpandingWidgetModel::ExpansionType::NotExpanded) {
QRect rect = eModel->partialExpandRect(sourceIndex);
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(sourceIndex));
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);
}
void ExpandingTree::drawBranches(QPainter* painter, const QRect& rect, const QModelIndex& index) const
{
const auto& path = index.data(ProjectPathRole).value<Path>();
if (path.isValid()) {
const auto color = WidgetColorizer::colorForId(qHash(path), palette(), true);
WidgetColorizer::drawBranches(this, painter, rect, index, color);
}
QTreeView::drawBranches(painter, rect, index);
}
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