1/* This file is part of the KDE project
2 Copyright (C) 2007 Dag Andersen <danders@get2net.dk>
3
4 This library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public
6 License as published by the Free Software Foundation; either
7 version 2 of the License, or (at your option) any later version.
8
9 This library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
13
14 You should have received a copy of the GNU Library General Public License
15 along with this library; see the file COPYING.LIB. If not, write to
16 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17* Boston, MA 02110-1301, USA.
18*/
19
20#ifndef RELATIONMODEL_H
21#define RELATIONMODEL_H
22
23#include "kptitemmodelbase.h"
24#include "kptschedule.h"
25
26
27class QMimeData;
28class QModelIndex;
29class KUndo2Command;
30
31namespace KPlato
32{
33
34class Project;
35class Node;
36class Relation;
37
38class KPLATOMODELS_EXPORT RelationModel : public QObject
39{
40 Q_OBJECT
41public:
42 RelationModel()
43 : QObject()
44 {}
45 ~RelationModel() {}
46
47 QVariant data( const Relation *relation, int property, int role = Qt::DisplayRole ) const;
48
49 static QVariant headerData( int section, int role = Qt::DisplayRole );
50
51 static int propertyCount();
52
53 QVariant parentName( const Relation *r, int role ) const;
54 QVariant childName( const Relation *r, int role ) const;
55 QVariant type( const Relation *r, int role ) const;
56 QVariant lag( const Relation *r, int role ) const;
57
58};
59
60class KPLATOMODELS_EXPORT RelationItemModel : public ItemModelBase
61{
62 Q_OBJECT
63public:
64 explicit RelationItemModel( QObject *parent = 0 );
65 ~RelationItemModel();
66
67 virtual void setProject( Project *project );
68 virtual void setNode( Node *node );
69
70 virtual Qt::ItemFlags flags( const QModelIndex & index ) const;
71
72 virtual QModelIndex parent( const QModelIndex & index ) const;
73 virtual QModelIndex index( int row, int column, const QModelIndex & parent = QModelIndex() ) const;
74
75 virtual int columnCount( const QModelIndex & parent = QModelIndex() ) const;
76 virtual int rowCount( const QModelIndex & parent = QModelIndex() ) const;
77
78 virtual QVariant data( const QModelIndex & index, int role = Qt::DisplayRole ) const;
79 virtual bool setData( const QModelIndex & index, const QVariant & value, int role = Qt::EditRole );
80
81
82 virtual QVariant headerData( int section, Qt::Orientation orientation, int role = Qt::DisplayRole ) const;
83
84 Relation *relation( const QModelIndex &index ) const;
85 QAbstractItemDelegate *createDelegate( int column, QWidget *parent ) const;
86
87signals:
88 void executeCommand( KUndo2Command* );
89
90protected slots:
91 void slotNodeChanged( Node* );
92 void slotNodeToBeRemoved( Node *node );
93 void slotNodeRemoved( Node *node );
94 void slotRelationToBeRemoved( Relation *r );
95 void slotRelationRemoved( Relation *r );
96 void slotRelationToBeAdded( Relation *r, int, int );
97 void slotRelationAdded( Relation *r );
98 void slotRelationModified( Relation *r );
99
100 void slotLayoutChanged();
101
102protected:
103 bool setType( Relation *r, const QVariant &value, int role );
104 bool setLag( Relation *r, const QVariant &value, int role );
105
106private:
107 Node *m_node;
108 RelationModel m_relationmodel;
109
110 Relation *m_removedRelation; // to control endRemoveRows()
111};
112
113} //namespace KPlato
114
115#endif
116