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86 lines
3.0 KiB
C++
86 lines
3.0 KiB
C++
/*=========================================================================
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Program: ParaView
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Module: pqTreeWidgetCheckHelper.cxx
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Copyright (c) 2005-2008 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 "pqTreeWidgetCheckHelper.h"
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#include <QTreeWidget>
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#include <QTreeWidgetItem>
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//-----------------------------------------------------------------------------
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pqTreeWidgetCheckHelper::pqTreeWidgetCheckHelper(
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QTreeWidget* tree, int checkableColumn,
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QObject* p):
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QObject(p)
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{
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this->Mode = CLICK_IN_ROW;
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this->Tree = tree;
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this->CheckableColumn = checkableColumn;
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this->PressState = -1;
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QObject::connect(this->Tree, SIGNAL(itemClicked(QTreeWidgetItem*, int)),
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this, SLOT(onItemClicked(QTreeWidgetItem*, int)));
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QObject::connect(this->Tree, SIGNAL(itemPressed(QTreeWidgetItem*, int)),
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this, SLOT(onItemPressed(QTreeWidgetItem*, int)));
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}
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//-----------------------------------------------------------------------------
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void pqTreeWidgetCheckHelper::onItemPressed(QTreeWidgetItem* item, int /*column*/)
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{
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this->PressState = item->checkState(this->CheckableColumn);
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}
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//-----------------------------------------------------------------------------
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void pqTreeWidgetCheckHelper::onItemClicked(QTreeWidgetItem* item, int column)
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{
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if (this->Mode == CLICK_IN_COLUMN && column != this->CheckableColumn)
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{
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return;
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}
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Qt::CheckState state = item->checkState(this->CheckableColumn);
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if (this->PressState != state)
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{
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// the click was on the check box itself, hence the state is already toggled.
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return;
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}
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if (state == Qt::Unchecked)
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{
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state = Qt::Checked;
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}
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else if (state == Qt::Checked)
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{
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state = Qt::Unchecked;
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}
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item->setCheckState(this->CheckableColumn, state);
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this->PressState = -1;
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}
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//-----------------------------------------------------------------------------
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