Theme Editor: Began implementing classes to display project files and settings in the project panel

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26706 a1c6a512-1295-4272-9138-f99709370657

utils/themeeditor/projectmodel.cpp

@@ -0,0 +1,114 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2010 Robert Bieber
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+
+#include "projectmodel.h"
+
+ProjectModel::ProjectModel(QObject *parent) :
+    QAbstractItemModel(parent)
+{
+
+}
+
+ProjectModel::~ProjectModel()
+{
+    if(root)
+        delete root;
+}
+
+QModelIndex ProjectModel::index(int row, int column,
+                                const QModelIndex& parent) const
+{
+
+    if(!hasIndex(row, column, parent))
+        return QModelIndex();
+
+    ProjectNode* foundParent = root;
+    if(parent.isValid())
+        foundParent = static_cast<ProjectNode*>(parent.internalPointer());
+
+    if(row < foundParent->numChildren() && row >= 0)
+        return createIndex(row, column, foundParent->child(row));
+    else
+        return QModelIndex();
+}
+
+QModelIndex ProjectModel::parent(const QModelIndex &child) const
+{
+    if(!child.isValid())
+        return QModelIndex();
+
+    ProjectNode* foundParent = static_cast<ProjectNode*>
+                                   (child.internalPointer())->parent();
+
+    if(foundParent == root)
+        return QModelIndex();
+
+    return createIndex(foundParent->row(), 0, foundParent);
+}
+
+int ProjectModel::rowCount(const QModelIndex &parent) const
+{
+    if(!root)
+        return 0;
+
+    if(!parent.isValid())
+        return root->numChildren();
+
+    if(parent.column() != 0)
+        return 0;
+
+    return static_cast<ProjectNode*>(parent.internalPointer())->numChildren();
+}
+
+int ProjectModel::columnCount(const QModelIndex &parent) const
+{
+    return numColumns;
+}
+
+QVariant ProjectModel::data(const QModelIndex &index, int role) const
+{
+    if(!index.isValid())
+        return QVariant();
+
+    if(role != Qt::DisplayRole)
+        return QVariant();
+
+    return static_cast<ProjectNode*>
+            (index.internalPointer())->data(index.column());
+}
+
+QVariant ProjectModel::headerData(int col, Qt::Orientation orientation,
+                                  int role) const
+{
+    return QVariant();
+}
+
+Qt::ItemFlags ProjectModel::flags(const QModelIndex &index) const
+{
+    return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
+}
+
+bool ProjectModel::setData(const QModelIndex &index, const QVariant &value,
+                           int role)
+{
+    return true;
+}