Move all the things (YES. Move them.)

Also, implemented some basic modlist logic, to be wired up.

logic/lists/InstVersionList.cpp

@@ -0,0 +1,129 @@
+/* Copyright 2013 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "logic/lists/InstVersionList.h"
+#include "logic/InstanceVersion.h"
+
+InstVersionList::InstVersionList(QObject *parent) :
+	QAbstractListModel(parent)
+{
+}
+
+InstVersionPtr InstVersionList::findVersion( const QString& descriptor )
+{
+	for (int i = 0; i < count(); i++)
+	{
+		if (at(i)->descriptor == descriptor)
+			return at(i);
+	}
+	return InstVersionPtr();
+}
+
+InstVersionPtr InstVersionList::getLatestStable() const
+{
+	if (count() <= 0)
+		return InstVersionPtr();
+	else
+		return at(0);
+}
+
+QVariant InstVersionList::data(const QModelIndex &index, int role) const
+{
+	if (!index.isValid())
+		return QVariant();
+	
+	if (index.row() > count())
+		return QVariant();
+	
+	
+	InstVersionPtr version = at(index.row());
+	
+	switch (role)
+	{
+	case Qt::DisplayRole:
+		switch (index.column())
+		{
+		case NameColumn:
+			return version->name;
+			
+		case TypeColumn:
+			return version->typeString();
+			
+		case TimeColumn:
+			return version->timestamp;
+			
+		default:
+			return QVariant();
+		}
+		
+	case Qt::ToolTipRole:
+		return version->descriptor;
+		
+	case VersionPointerRole:
+		return qVariantFromValue(version);
+		
+	default:
+		return QVariant();
+	}
+}
+
+QVariant InstVersionList::headerData(int section, Qt::Orientation orientation, int role) const
+{
+	switch (role)
+	{
+	case Qt::DisplayRole:
+		switch (section)
+		{
+		case NameColumn:
+			return "Name";
+			
+		case TypeColumn:
+			return "Type";
+			
+		case TimeColumn:
+			return "Time";
+		
+		default:
+			return QVariant();
+		}
+		
+	case Qt::ToolTipRole:
+		switch (section)
+		{
+		case NameColumn:
+			return "The name of the version.";
+			
+		case TypeColumn:
+			return "The version's type.";
+		
+		default:
+			return QVariant();
+		}
+		
+	default:
+		return QVariant();
+	}
+}
+
+int InstVersionList::rowCount(const QModelIndex &parent) const
+{
+	// Return count
+	return count();
+}
+
+int InstVersionList::columnCount(const QModelIndex &parent) const
+{
+	return 2;
+}