kde-playground/kdepim/kdgantt2/kdganttlistviewrowcontroller.cpp
2015-04-14 21:49:29 +00:00

109 lines
3.5 KiB
C++

/****************************************************************************
** Copyright (C) 2001-2006 Klarälvdalens Datakonsult AB. All rights reserved.
**
** This file is part of the KD Gantt library.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid commercial KD Gantt licenses may use this file in
** accordance with the KD Gantt Commercial License Agreement provided with
** the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.kdab.net/kdgantt for
** information about KD Gantt Commercial License Agreements.
**
** Contact info@kdab.net if any conditions of this
** licensing are not clear to you.
**
**********************************************************************/
#include "kdganttlistviewrowcontroller.h"
#include "kdganttlistviewrowcontroller_p.h"
#include <QAbstractProxyModel>
#include <QScrollBar>
#include <cassert>
using namespace KDGantt;
/*!\class TreeViewRowController
* This is an implementation of AbstractRowController that
* aligns a gantt view with a QListView. Provided for
* convenience for users who want to use View with QListView
* instead of QTreeView.
*/
ListViewRowController::ListViewRowController( QListView* lv, QAbstractProxyModel* proxy )
: _d( new Private(lv,proxy) )
{
}
ListViewRowController::~ListViewRowController()
{
delete _d; _d = 0;
}
#define d d_func()
int ListViewRowController::headerHeight() const
{
return d->listview->viewport()->y()-d->listview->frameWidth();
}
int ListViewRowController::maximumItemHeight() const
{
return d->listview->fontMetrics().height();
}
int ListViewRowController::totalHeight() const
{
return d->listview->verticalScrollBar()->maximum()+d->listview->viewport()->height();
}
bool ListViewRowController::isRowVisible( const QModelIndex& _idx ) const
{
const QModelIndex idx = d->proxy->mapToSource( _idx );
assert( idx.isValid() ? ( idx.model() == d->listview->model() ):( true ) );
return d->listview->visualRect(idx).isValid();
}
bool ListViewRowController::isRowExpanded( const QModelIndex& _idx ) const
{
Q_UNUSED( _idx );
return false;
}
Span ListViewRowController::rowGeometry( const QModelIndex& _idx ) const
{
const QModelIndex idx = d->proxy->mapToSource( _idx );
assert( idx.isValid() ? ( idx.model() == d->listview->model() ):( true ) );
QRect r = d->listview->visualRect(idx).translated( QPoint( 0,
static_cast<Private::HackListView*>(d->listview)->verticalOffset() ) );
return Span( r.y(), r.height() );
}
QModelIndex ListViewRowController::indexAt( int height ) const
{
return d->proxy->mapFromSource( d->listview->indexAt( QPoint( 1,height ) ) );
}
QModelIndex ListViewRowController::indexAbove( const QModelIndex& _idx ) const
{
const QModelIndex idx = d->proxy->mapToSource( _idx );
return d->proxy->mapFromSource( idx.sibling( idx.row()-1, idx.column()) );
}
QModelIndex ListViewRowController::indexBelow( const QModelIndex& _idx ) const
{
const QModelIndex idx = d->proxy->mapToSource( _idx );
if( !idx.isValid() || idx.column()!=0 ) return QModelIndex();
if( idx.model()->rowCount(idx.parent())<idx.row()+1 ) return QModelIndex();
return d->proxy->mapFromSource( idx.sibling( idx.row()+1, idx.column()) );
}