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112 lines
3.9 KiB
C++
112 lines
3.9 KiB
C++
/*=========================================================================
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Program: ParaView
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Module: pqTreeWidgetSelectionHelper.cxx
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Copyright (c) 2005,2006 Sandia Corporation, Kitware Inc.
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All rights reserved.
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ParaView is a free software; you can redistribute it and/or modify it
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under the terms of the ParaView license version 1.2.
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See License_v1.2.txt for the full ParaView license.
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A copy of this license can be obtained by contacting
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Kitware Inc.
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28 Corporate Drive
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Clifton Park, NY 12065
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USA
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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========================================================================*/
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#include "pqTreeWidgetSelectionHelper.h"
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// Server Manager Includes.
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// Qt Includes.
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#include <QTreeWidget>
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#include <QtDebug>
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#include <QMenu>
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// ParaView Includes.
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//-----------------------------------------------------------------------------
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pqTreeWidgetSelectionHelper::pqTreeWidgetSelectionHelper(QTreeWidget* tree):
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Superclass(tree)
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{
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this->TreeWidget = tree;
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tree->setSelectionMode(QAbstractItemView::ExtendedSelection);
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tree->setContextMenuPolicy(Qt::CustomContextMenu);
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QObject::connect(tree, SIGNAL(itemPressed(QTreeWidgetItem*, int)),
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this, SLOT(onItemPressed(QTreeWidgetItem*, int)));
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QObject::connect(tree, SIGNAL(customContextMenuRequested(const QPoint&)),
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this, SLOT(showContextMenu(const QPoint&)));
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}
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//-----------------------------------------------------------------------------
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pqTreeWidgetSelectionHelper::~pqTreeWidgetSelectionHelper()
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{
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}
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//-----------------------------------------------------------------------------
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void pqTreeWidgetSelectionHelper::onItemPressed(QTreeWidgetItem* item, int )
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{
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this->PressState = -1;
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if ((item->flags() & Qt::ItemIsUserCheckable) == Qt::ItemIsUserCheckable)
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{
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this->PressState = item->checkState(0);
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this->Selection = this->TreeWidget->selectionModel()->selection();
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}
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}
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//-----------------------------------------------------------------------------
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void pqTreeWidgetSelectionHelper::setSelectedItemsCheckState(Qt::CheckState state)
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{
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// Change all checkable items in the this->Selection to match the new
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// check state.
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this->TreeWidget->selectionModel()->select(this->Selection,
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QItemSelectionModel::ClearAndSelect);
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QList<QTreeWidgetItem*> items = this->TreeWidget->selectedItems();
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foreach (QTreeWidgetItem* curitem, items)
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{
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if ((curitem->flags() & Qt::ItemIsUserCheckable) == Qt::ItemIsUserCheckable)
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{
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curitem->setCheckState(/*column*/0, state);
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}
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}
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}
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//-----------------------------------------------------------------------------
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void pqTreeWidgetSelectionHelper::showContextMenu(const QPoint &pos)
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{
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if (this->TreeWidget->selectionModel()->selectedIndexes().size() > 0)
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{
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QMenu menu;
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menu.setObjectName("TreeWidgetCheckMenu");
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QAction* check = new QAction("Check", &menu);
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QAction* uncheck = new QAction("Uncheck", &menu);
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menu.addAction(check);
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menu.addAction(uncheck);
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QAction* result = menu.exec(this->TreeWidget->mapToGlobal(pos));
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if (result == check)
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{
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this->setSelectedItemsCheckState(Qt::Checked);
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}
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else if (result == uncheck)
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{
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this->setSelectedItemsCheckState(Qt::Unchecked);
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}
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}
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}
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