pqTreeWidgetItem.h
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1 /*=========================================================================
2 
3  Program: ParaView
4  Module: pqTreeWidgetItem.h
5 
6  Copyright (c) 2005,2006 Sandia Corporation, Kitware Inc.
7  All rights reserved.
8 
9  ParaView is a free software; you can redistribute it and/or modify it
10  under the terms of the ParaView license version 1.2.
11 
12  See License_v1.2.txt for the full ParaView license.
13  A copy of this license can be obtained by contacting
14  Kitware Inc.
15  28 Corporate Drive
16  Clifton Park, NY 12065
17  USA
18 
19 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR
23 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
26 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
27 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
28 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
29 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 
31 ========================================================================*/
32 #ifndef pqTreeWidgetItem_h
33 #define pqTreeWidgetItem_h
34 
35 #include "pqWidgetsModule.h"
36 #include <QTreeWidgetItem>
37 
44 class PQWIDGETS_EXPORT pqTreeWidgetItem : public QTreeWidgetItem
45 {
46  typedef QTreeWidgetItem Superclass;
47 
48 public:
49  pqTreeWidgetItem(int atype = UserType)
50  : Superclass(atype)
51  , CallbackHandler(nullptr)
52  {
53  }
54  pqTreeWidgetItem(const QStringList& strings, int atype = UserType)
55  : Superclass(strings, atype)
56  , CallbackHandler(nullptr)
57  {
58  }
59  pqTreeWidgetItem(QTreeWidget* aparent, int atype = UserType)
60  : Superclass(aparent, atype)
61  , CallbackHandler(nullptr)
62  {
63  }
64  pqTreeWidgetItem(QTreeWidget* aparent, const QStringList& strings, int atype = UserType)
65  : Superclass(aparent, strings, atype)
66  , CallbackHandler(nullptr)
67  {
68  }
69  pqTreeWidgetItem(QTreeWidget* aparent, QTreeWidgetItem* preceding, int atype = UserType)
70  : Superclass(aparent, preceding, atype)
71  , CallbackHandler(nullptr)
72  {
73  }
74  pqTreeWidgetItem(QTreeWidgetItem* aparent, int atype = UserType)
75  : Superclass(aparent, atype)
76  , CallbackHandler(nullptr)
77  {
78  }
79  pqTreeWidgetItem(QTreeWidgetItem* aparent, const QStringList& strings, int atype = UserType)
80  : Superclass(aparent, strings, atype)
81  , CallbackHandler(nullptr)
82  {
83  }
84  pqTreeWidgetItem(QTreeWidgetItem* aparent, QTreeWidgetItem* preceding, int atype = UserType)
85  : Superclass(aparent, preceding, atype)
86  , CallbackHandler(nullptr)
87  {
88  }
89 
93  void setData(int column, int role, const QVariant& v) override;
94 
96  {
97  public:
98  virtual ~pqCallbackHandler() = default;
99 
103  virtual void dataAboutToChange(pqTreeWidgetItem* /*item*/, int /*column*/, int /*role*/){};
104 
108  virtual void checkStateAboutToChange(pqTreeWidgetItem* /*item*/, int /*column*/){};
109 
113  virtual void checkStateChanged(pqTreeWidgetItem* /*item*/, int /*column*/){};
114 
118  virtual void dataChanged(pqTreeWidgetItem* /*item*/, int /*column*/, int /*role*/){};
119 
123  virtual bool acceptChange(pqTreeWidgetItem* /*item*/, const QVariant& /*curValue*/,
124  const QVariant& /*newValue*/, int /*column*/, int /*role*/)
125  {
126  return true;
127  }
128  };
129 
133  void setCallbackHandler(pqCallbackHandler* hdlr) { this->CallbackHandler = hdlr; }
134 
135 protected:
137 };
138 
139 #endif
pqTreeWidgetItem(QTreeWidgetItem *aparent, int atype=UserType)
pqTreeWidgetItem(const QStringList &strings, int atype=UserType)
pqTreeWidgetItem(QTreeWidget *aparent, QTreeWidgetItem *preceding, int atype=UserType)
void setCallbackHandler(pqCallbackHandler *hdlr)
Set the name of the callback slot to call.
pqTreeWidgetItem(QTreeWidget *aparent, const QStringList &strings, int atype=UserType)
virtual void checkStateAboutToChange(pqTreeWidgetItem *, int)
Called to indicate that the data is about to be changed.
pqTreeWidgetItem(QTreeWidgetItem *aparent, QTreeWidgetItem *preceding, int atype=UserType)
virtual void dataChanged(pqTreeWidgetItem *, int, int)
Called to indicate that the data has been changed.
virtual bool acceptChange(pqTreeWidgetItem *, const QVariant &, const QVariant &, int, int)
Called to check if the change has to be accepted or rejected.
pqTreeWidgetItem is a QTreeWidgetItem with callbacks for whenever the data for the pqTreeWidgetItem c...
#define PQWIDGETS_EXPORT
pqTreeWidgetItem(QTreeWidgetItem *aparent, const QStringList &strings, int atype=UserType)
pqCallbackHandler * CallbackHandler
pqTreeWidgetItem(int atype=UserType)
virtual void dataAboutToChange(pqTreeWidgetItem *, int, int)
Called to indicate that the data is about to be changed.
pqTreeWidgetItem(QTreeWidget *aparent, int atype=UserType)
virtual void checkStateChanged(pqTreeWidgetItem *, int)
Called to indicate that the check state for the item has been changed.