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/******************************************************************************
*
* Copyright (C) 2002 Hugo PEREIRA <mailto: hugo.pereira@free.fr>
*
* This 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 software 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, see <http://www.gnu.org/licenses/>.
*
*******************************************************************************/
#include "ColumnSortingMenu.h"
#include "Debug.h"
#include "TreeView.h"
#include <QHeaderView>
//_____________________________________________________
ColumnSortingMenu::ColumnSortingMenu( QWidget* parent, QTreeView* target, const QString& title ):
QMenu( parent ),
Counter( "ColumnSortingMenu" ),
target_( target ),
header_( 0 ),
group_( new QActionGroup( this ) )
{
Debug::Throw( "ColumnSortingMenu::ColumnSortingMenu.\n" );
setTitle( title );
connect( this, SIGNAL(aboutToShow()), SLOT(_updateActions()) );
connect( this, SIGNAL(triggered(QAction*)), SLOT(_sort(QAction*)) );
group_->setExclusive( true );
addSeparator();
addAction( tr( "Reverse Order" ), this, SLOT(_revertOrder()) );
}
//_____________________________________________________
ColumnSortingMenu::ColumnSortingMenu( QWidget* parent, QHeaderView* header, const QString& title ):
QMenu( parent ),
Counter( "ColumnSortingMenu" ),
target_( 0 ),
header_( header ),
group_( new QActionGroup( this ) )
{
Debug::Throw( "ColumnSortingMenu::ColumnSortingMenu.\n" );
setTitle( title );
connect( this, SIGNAL(aboutToShow()), SLOT(_updateActions()) );
connect( this, SIGNAL(triggered(QAction*)), SLOT(_sort(QAction*)) );
group_->setExclusive( true );
addSeparator();
addAction( tr( "Reverse order" ), this, SLOT(_revertOrder()) );
}
//_____________________________________________________
void ColumnSortingMenu::_updateActions()
{
Debug::Throw( "ColumnSortingMenu::_updateActions.\n" );
// clear existing actions
for( auto&& iter = actions_.begin(); iter != actions_.end(); ++iter )
{ delete iter.key(); }
actions_.clear();
// check if the menu already has actions.
QList<QAction*> actions( ColumnSortingMenu::actions() );
QAction *firstAction( actions.isEmpty() ? 0:actions.front() );
// retrieve parent header.
if( target_ ) header_ = target_->header();
Q_ASSERT( header_ );
Q_ASSERT( header_->isSortIndicatorShown() );
// try cast to treeview
TreeView* treeView( qobject_cast<TreeView*>( header_->parentWidget() ) );
// loop over columns in header
for( int index=0; index < header_->count(); index++ )
{
// retrieve column name
QString columnName( header_->model()->headerData( index, Qt::Horizontal, Qt::DisplayRole ).toString() );
if( columnName.isNull() || columnName.isEmpty() )
{ columnName = QString( tr( "Column %1" ) ).arg( index+1 ); }
QAction* action = new QAction( columnName, this );
action->setCheckable( true );
action->setChecked( index == header_->sortIndicatorSection() );
// disable/hide action for locked columns
if( treeView && treeView->isColumnVisibilityLocked( index ) )
{
if( treeView->isColumnHidden( index ) && !action->isChecked() )
{ action->setVisible( false ); }
}
insertAction( firstAction, action );
group_->addAction( action );
actions_.insert( action, index );
}
}
//______________________________________________________________________________
void ColumnSortingMenu::_sort( QAction* action )
{
Debug::Throw( "ColumnSortingMenu::_sort.\n" );
// retrieve index
ActionMap::const_iterator iter = actions_.find( action );
if( iter == actions_.end() ) return;
// retrieve parent tree_view
if( target_ ) header_ = target_->header();
Q_ASSERT( header_ );
header_->setSortIndicator( iter.value(), header_->sortIndicatorOrder() );
}
//______________________________________________________________________________
void ColumnSortingMenu::_revertOrder()
{
Debug::Throw( "ColumnSortingMenu::_sort.\n" );
// retrieve parent tree_view
if( target_ ) header_ = target_->header();
Q_ASSERT( header_ );
Qt::SortOrder order( header_->sortIndicatorOrder() == Qt::AscendingOrder ? Qt::DescendingOrder : Qt::AscendingOrder );
header_->setSortIndicator( header_->sortIndicatorSection(), order );
}
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