apps/plasma/applets/folderview/previewpluginsmodel.cpp

   1 /*
   2  *   Copyright © 2008 Fredrik Höglund <fredrik@kde.org>
   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 #include <QStringList>
  21 #include "previewpluginsmodel.h"
  22
  23 PreviewPluginsModel::PreviewPluginsModel(QObject *parent)
  24     : QAbstractListModel(parent)
  25 {
  26     plugins = KServiceTypeTrader::self()->query("ThumbCreator");
  27
  28     // Sort the list alphabetially
  29     QMap<QString, KSharedPtr<KService> > map;
  30     for (int i = 0; i < plugins.size(); i++) {
  31         map.insert(plugins[i]->name().toLower(), plugins[i]);
  32     }
  33     plugins = map.values();
  34 }
  35
  36 PreviewPluginsModel::~PreviewPluginsModel()
  37 {
  38 }
  39
  40 Qt::ItemFlags PreviewPluginsModel::flags(const QModelIndex &index) const
  41 {
  42     Q_UNUSED(index)
  43
  44     return Qt::ItemIsUserCheckable | Qt::ItemIsEnabled;
  45 }
  46
  47 QVariant PreviewPluginsModel::data(const QModelIndex &index, int role) const
  48 {
  49     if (index.row() < 0 || index.row() >= plugins.size()) {
  50         return QVariant();
  51     }
  52
  53     switch (role) {
  54     case Qt::DisplayRole:
  55         return plugins.at(index.row())->name();
  56
  57     case Qt::CheckStateRole:
  58         return checkedRows.contains(index.row()) ? Qt::Checked : Qt::Unchecked;
  59     }
  60
  61     return QVariant();
  62 }
  63
  64 bool PreviewPluginsModel::setData(const QModelIndex &index, const QVariant &value, int role)
  65 {
  66     if (role != Qt::CheckStateRole) {
  67         return false;
  68     }
  69
  70     const Qt::CheckState state = static_cast<Qt::CheckState>(value.toInt());
  71     if (state == Qt::Checked) {
  72         checkedRows.append(index.row());
  73     } else {
  74         checkedRows.removeAll(index.row());
  75     }
  76
  77     emit dataChanged(index, index);
  78     return true;
  79 }
  80
  81 int PreviewPluginsModel::indexOfPlugin(const QString &name) const
  82 {
  83     for (int i = 0; i < plugins.size(); i++) {
  84         if (plugins.at(i)->desktopEntryName() == name) {
  85             return i;
  86         }
  87     }
  88     return -1;
  89 }
  90
  91 void PreviewPluginsModel::setCheckedPlugins(const QStringList &list)
  92 {
  93     foreach (const QString &name, list) {
  94         const int row = indexOfPlugin(name);
  95         if (row != -1) {
  96             checkedRows.append(row);
  97             emit dataChanged(index(row, 0), index(row, 0));
  98         }
  99     }
 100 }
 101
 102 QStringList PreviewPluginsModel::checkedPlugins() const
 103 {
 104     QStringList list;
 105     foreach (int row, checkedRows) {
 106         list.append(plugins.at(row)->desktopEntryName());
 107     }
 108     return list;
 109 }
 110
 111