kde-extraapps/kdevplatform/debugger/util/treeview.cpp
2015-07-26 14:23:17 +03:00

87 lines
2.6 KiB
C++

/*
* 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 <QApplication>
#include <QDesktopWidget>
#include "treeview.h"
#include "treemodel.h"
using namespace KDevelop;
AsyncTreeView::AsyncTreeView(TreeModel* model, QWidget *parent = 0)
: QTreeView(parent)
{
setModel(model);
connect (this, SIGNAL(expanded(QModelIndex)),
this, SLOT(slotExpanded(QModelIndex)));
connect (this, SIGNAL(collapsed(QModelIndex)),
this, SLOT(slotCollapsed(QModelIndex)));
connect (this, SIGNAL(clicked(QModelIndex)),
this, SLOT(slotClicked(QModelIndex)));
connect (model, SIGNAL(itemChildrenReady()),
this, SLOT(slotExpandedDataReady()));
}
void AsyncTreeView::slotExpanded(const QModelIndex &index)
{
static_cast<TreeModel*>(model())->expanded(index);
}
void AsyncTreeView::slotCollapsed(const QModelIndex &index)
{
static_cast<TreeModel*>(model())->collapsed(index);
resizeColumns();
}
void AsyncTreeView::slotClicked(const QModelIndex &index)
{
static_cast<TreeModel*>(model())->clicked(index);
resizeColumns();
}
QSize AsyncTreeView::sizeHint() const
{
//Assuming that columns are awlays 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, QApplication::desktop()->screenGeometry().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();
}
#include "moc_treeview.cpp"