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/*
* This file is part of KDevelop
*
* Copyright 2008 Vladimir Prus <ghost@cs.msu.su>
*
* 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 "treeview.h"
#include "treemodel.h"
#include <QApplication>
#include <QDesktopWidget>
#include <QScreen>
#include <QSortFilterProxyModel>
using namespace KDevelop;
AsyncTreeView::AsyncTreeView(TreeModel* model, QSortFilterProxyModel *proxy, QWidget *parent = nullptr)
: QTreeView(parent)
, m_proxy(proxy)
{
connect (this, &AsyncTreeView::expanded,
this, &AsyncTreeView::slotExpanded);
connect (this, &AsyncTreeView::collapsed,
this, &AsyncTreeView::slotCollapsed);
connect (this, &AsyncTreeView::clicked,
this, &AsyncTreeView::slotClicked);
connect (model, &TreeModel::itemChildrenReady,
this, &AsyncTreeView::slotExpandedDataReady);
}
void AsyncTreeView::slotExpanded(const QModelIndex &index)
{
static_cast<TreeModel*>(model())->expanded(m_proxy->mapToSource(index));
}
void AsyncTreeView::slotCollapsed(const QModelIndex &index)
{
static_cast<TreeModel*>(model())->collapsed(m_proxy->mapToSource(index));
resizeColumns();
}
void AsyncTreeView::slotClicked(const QModelIndex &index)
{
static_cast<TreeModel*>(model())->clicked(m_proxy->mapToSource(index));
resizeColumns();
}
QSize AsyncTreeView::sizeHint() const
{
//Assuming that columns are always resized to fit their contents, return a size that will fit all without a scrollbar
QMargins margins = contentsMargins();
int horizontalSize = margins.left() + margins.right();
for (int i = 0; i < model()->columnCount(); ++i) {
horizontalSize += columnWidth(i);
}
horizontalSize = qMin(horizontalSize, QGuiApplication::primaryScreen()->geometry().width()*3/4);
return QSize(horizontalSize, margins.top() + margins.bottom() + sizeHintForRow(0));
}
void AsyncTreeView::resizeColumns()
{
for (int i = 0; i < model()->columnCount(); ++i) {
this->resizeColumnToContents(i);
}
this->updateGeometry();
}
void AsyncTreeView::slotExpandedDataReady()
{
resizeColumns();
}
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