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Nepomuk

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  • utils
resourcemodel.h
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1/*
2 This file is part of the Nepomuk KDE project.
3 Copyright (C) 2007-2010 Sebastian Trueg <trueg@kde.org>
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) version 3, or any
9 later version accepted by the membership of KDE e.V. (or its
10 successor approved by the membership of KDE e.V.), which shall
11 act as a proxy defined in Section 6 of version 3 of the license.
12
13 This library is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
17
18 You should have received a copy of the GNU Lesser General Public
19 License along with this library. If not, see <http://www.gnu.org/licenses/>.
20 */
21
22#ifndef _NEPOMUK_RESOUCE_MODEL_H_
23#define _NEPOMUK_RESOUCE_MODEL_H_
24
25#include <QtCore/QAbstractItemModel>
26
27#include "nepomukutils_export.h"
28
29namespace Nepomuk {
30
31 class Resource;
32
33 namespace Utils {
57 class NEPOMUKUTILS_EXPORT ResourceModel : public QAbstractItemModel
58 {
59 Q_OBJECT
60
61 public:
65 ResourceModel( QObject* parent = 0 );
66
70 virtual ~ResourceModel();
71
76 enum ResourceModelColumns {
78 ResourceColumn = 0,
79
81 ResourceTypeColumn = 1,
82
84 ResourceModelColumnCount = 2
85 };
86
90 enum ResourceRoles {
94 ResourceRole = 7766897,
95
100 ResourceTypeRole = 687585,
101
105 ResourceCreationDateRole = 7766898
106 };
107
114 virtual Resource resourceForIndex( const QModelIndex& index ) const = 0;
115
122 virtual QModelIndex indexForResource( const Resource& res ) const = 0;
123
128 virtual QModelIndex parent( const QModelIndex& child ) const;
129
134 virtual int columnCount( const QModelIndex& parent ) const;
135
141 virtual QVariant data( const QModelIndex& index, int role = Qt::DisplayRole ) const;
142
146 virtual QVariant headerData( int section, Qt::Orientation orientation, int role = Qt::DisplayRole ) const;
147
151 virtual Qt::ItemFlags flags( const QModelIndex& index ) const;
152
158 virtual QMimeData* mimeData( const QModelIndexList& indexes ) const;
159
163 virtual QStringList mimeTypes() const;
164
168 virtual bool setData( const QModelIndex& index, const QVariant& value, int role );
169
170 private:
171 class Private;
172 Private* const d;
173 };
174 }
175}
176
177#endif
Nepomuk::Resource
Resource is the central object type in Nepomuk.
Definition: resource.h:95
Nepomuk::Utils::ResourceModel
Base class for all models providing a plain list of resources.
Definition: resourcemodel.h:58
Nepomuk::Utils::ResourceModel::data
virtual QVariant data(const QModelIndex &index, int role=Qt::DisplayRole) const
Handles most roles typically used in applications like Qt::DisplayRole, Qt::ToolTipRole,...
Nepomuk::Utils::ResourceModel::parent
virtual QModelIndex parent(const QModelIndex &child) const
The default implementation returns an invalid QModelIndex, thus providing a plain list.
Nepomuk::Utils::ResourceModel::setData
virtual bool setData(const QModelIndex &index, const QVariant &value, int role)
Provided for future extensions.
Nepomuk::Utils::ResourceModel::ResourceRoles
ResourceRoles
Custom roles that can be accessed for example in delegates.
Definition: resourcemodel.h:90
Nepomuk::Utils::ResourceModel::headerData
virtual QVariant headerData(int section, Qt::Orientation orientation, int role=Qt::DisplayRole) const
Provides header data for the supported columns.
Nepomuk::Utils::ResourceModel::columnCount
virtual int columnCount(const QModelIndex &parent) const
The default implementation returns 2 with the first column representing the resource itself and the s...
Nepomuk::Utils::ResourceModel::~ResourceModel
virtual ~ResourceModel()
Destructor.
Nepomuk::Utils::ResourceModel::resourceForIndex
virtual Resource resourceForIndex(const QModelIndex &index) const =0
Get the Resource which corresponds to index.
Nepomuk::Utils::ResourceModel::mimeData
virtual QMimeData * mimeData(const QModelIndexList &indexes) const
Stores the resource URIs via KUrl::List::populateMimeData() and as a specific "application/x-nepomuk-...
Nepomuk::Utils::ResourceModel::flags
virtual Qt::ItemFlags flags(const QModelIndex &index) const
Reimplemented to support dragging of resources out of the model.
Nepomuk::Utils::ResourceModel::indexForResource
virtual QModelIndex indexForResource(const Resource &res) const =0
Get the index for a resource.
Nepomuk::Utils::ResourceModel::ResourceModel
ResourceModel(QObject *parent=0)
Constructor.
Nepomuk::Utils::ResourceModel::mimeTypes
virtual QStringList mimeTypes() const
Nepomuk::Utils::ResourceModel::ResourceModelColumns
ResourceModelColumns
The columns supported by ResourceModel are identified by this enumeration.
Definition: resourcemodel.h:76
QAbstractItemModel
QObject
Nepomuk
nepomukutils_export.h
NEPOMUKUTILS_EXPORT
#define NEPOMUKUTILS_EXPORT
Definition: nepomukutils_export.h:36
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