src/contrib/libqxt-2007-10-24/src/gui/qxttreewidgetitem.cpp

   1 /****************************************************************************
   2 **
   3 ** Copyright (C) Qxt Foundation. Some rights reserved.
   4 **
   5 ** This file is part of the QxtGui module of the Qt eXTension library
   6 **
   7 ** This library is free software; you can redistribute it and/or modify it
   8 ** under the terms of th Common Public License, version 1.0, as published by
   9 ** IBM.
  10 **
  11 ** This file is provided "AS IS", without WARRANTIES OR CONDITIONS OF ANY
  12 ** KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION, ANY
  13 ** WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR
  14 ** FITNESS FOR A PARTICULAR PURPOSE.
  15 **
  16 ** You should have received a copy of the CPL along with this file.
  17 ** See the LICENSE file and the cpl1.0.txt file included with the source
  18 ** distribution for more information. If you did not receive a copy of the
  19 ** license, contact the Qxt Foundation.
  20 **
  21 ** <http://libqxt.sourceforge.net>  <foundation@libqxt.org>
  22 **
  23 ****************************************************************************/
  24 #include "qxttreewidgetitem.h"
  25 #include "qxttreewidget.h"
  26
  27 /*!
  28     \class QxtTreeWidgetItem QxtTreeWidgetItem
  29     \ingroup QxtGui
  30     \brief An extended QTreeWidgetItem.
  31
  32     QxtTreeWidgetItem provides means for offering check state change signals and
  33     convenience methods for testing and setting flags.
  34
  35     \sa QxtTreeWidget
  36  */
  37
  38
  39 QxtTreeWidgetItem::QxtTreeWidgetItem(int type)
  40         : QTreeWidgetItem(type)
  41 {}
  42
  43 QxtTreeWidgetItem::QxtTreeWidgetItem(const QStringList& strings, int type)
  44         : QTreeWidgetItem(strings, type)
  45 {}
  46
  47 QxtTreeWidgetItem::QxtTreeWidgetItem(QTreeWidget* parent, int type)
  48         : QTreeWidgetItem(parent, type)
  49 {}
  50
  51 QxtTreeWidgetItem::QxtTreeWidgetItem(QTreeWidget* parent, const QStringList& strings, int type)
  52         : QTreeWidgetItem(parent, strings, type)
  53 {}
  54
  55 QxtTreeWidgetItem::QxtTreeWidgetItem(QTreeWidget* parent, QTreeWidgetItem* preceding, int type)
  56         : QTreeWidgetItem(parent, preceding, type)
  57 {}
  58
  59 QxtTreeWidgetItem::QxtTreeWidgetItem(QTreeWidgetItem* parent, int type)
  60         : QTreeWidgetItem(parent, type)
  61 {}
  62
  63 QxtTreeWidgetItem::QxtTreeWidgetItem(QTreeWidgetItem* parent, const QStringList& strings, int type)
  64         : QTreeWidgetItem(parent, strings, type)
  65 {}
  66
  67 QxtTreeWidgetItem::QxtTreeWidgetItem(QTreeWidgetItem* parent, QTreeWidgetItem* preceding, int type)
  68         : QTreeWidgetItem(parent, preceding, type)
  69 {}
  70
  71 QxtTreeWidgetItem::QxtTreeWidgetItem(const QxtTreeWidgetItem& other)
  72         : QTreeWidgetItem(other)
  73 {}
  74
  75 QxtTreeWidgetItem::~QxtTreeWidgetItem()
  76 {}
  77
  78 /*!
  79     Returns \b true if the \a flag is set, otherwise \b false.
  80
  81     \sa setFlag(), QTreeWidgetItem::flags(), Qt::ItemFlag
  82  */
  83 bool QxtTreeWidgetItem::testFlag(Qt::ItemFlag flag) const
  84 {
  85     return (flags() & flag);
  86 }
  87
  88 /*!
  89     If \a enabled is \b true, the item \a flag is enabled; otherwise, it is disabled.
  90
  91     \sa testFlag(), QTreeWidgetItem::setFlags(), Qt::ItemFlag
  92  */
  93 void QxtTreeWidgetItem::setFlag(Qt::ItemFlag flag, bool enabled)
  94 {
  95     if (enabled)
  96         setFlags(flags() | flag);
  97     else
  98         setFlags(flags() & ~flag);
  99 }
 100
 101 void QxtTreeWidgetItem::setData(int column, int role, const QVariant& value)
 102 {
 103     if (role == Qt::CheckStateRole)
 104     {
 105         const Qt::CheckState newState = static_cast<Qt::CheckState>(value.toInt());
 106         const Qt::CheckState oldState = static_cast<Qt::CheckState>(data(column, role).toInt());
 107
 108         QTreeWidgetItem::setData(column, role, value);
 109
 110         if (newState != oldState)
 111         {
 112             QxtTreeWidget* tree = qobject_cast<QxtTreeWidget*>(treeWidget());
 113             if (tree)
 114             {
 115                 emit tree->itemCheckStateChanged(this);
 116             }
 117         }
 118     }
 119     else
 120     {
 121         QTreeWidgetItem::setData(column, role, value);
 122     }
 123 }