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86 lines
3.1 KiB
C++
86 lines
3.1 KiB
C++
/*=========================================================================
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Program: ParaView
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Module: pqTreeWidgetCheckHelper.h
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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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#ifndef pqTreeWidgetCheckHelper_h
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#define pqTreeWidgetCheckHelper_h
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#include "pqWidgetsModule.h"
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#include <QObject>
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class QTreeWidget;
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class QTreeWidgetItem;
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/// If a QTreeWidget has checkable elements in any column, one needs
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/// to explicitly click on the checkbox to change the check state.
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/// However, sometimes we simply want the checkbox to be updated
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/// when the user clicks on the entire row. For that
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/// purpose, we use pqTreeWidgetCheckHelper. Simply create
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/// and instance of pqTreeWidgetCheckHelper, and set a tree to use.
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class PQWIDGETS_EXPORT pqTreeWidgetCheckHelper : public QObject
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{
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Q_OBJECT
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public:
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// treeWidget :- the tree widget managed by this helper.
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// checkableColumn :- column index for the checkable item.
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// parent :- QObject parent.
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pqTreeWidgetCheckHelper(QTreeWidget* treeWidget,
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int checkableColumn, QObject* parent);
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enum CheckMode
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{
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CLICK_IN_COLUMN, // toggle check state when clicked in the column
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// with the checkable item.
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CLICK_IN_ROW, // toggle check state when clicked in the row
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// with the checkable item (default).
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};
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// Check Mode controls whether the user must click in the column
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// with the checkable item or any column in the same row.
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void setCheckMode(CheckMode mode) {this->Mode = mode;}
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CheckMode checkMode() const { return this->Mode; }
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protected slots:
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void onItemClicked (QTreeWidgetItem *item, int column);
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void onItemPressed (QTreeWidgetItem *item, int column);
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private:
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pqTreeWidgetCheckHelper(const pqTreeWidgetCheckHelper&); // Not implemented.
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void operator=(const pqTreeWidgetCheckHelper&); // Not implemented.
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QTreeWidget* Tree;
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int CheckableColumn;
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int PressState;
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CheckMode Mode;
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};
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#endif
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