Added instance setting overrides.

libsettings/src/inisettingsobject.cpp

@@ -0,0 +1,49 @@
+/* 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 "include/inisettingsobject.h"
+#include "include/setting.h"
+
+INISettingsObject::INISettingsObject(const QString &path, QObject *parent) :
+	SettingsObject(parent)
+{
+	m_filePath = path;
+	m_ini.loadFile(path);
+}
+
+void INISettingsObject::setFilePath(const QString &filePath)
+{
+	m_filePath = filePath;
+}
+
+void INISettingsObject::changeSetting(const Setting &setting, QVariant value)
+{
+	if (contains(setting.id()))
+	{
+		m_ini.set(setting.configKey(), value);
+	}
+}
+
+QVariant INISettingsObject::retrieveValue(const Setting &setting)
+{
+	if (contains(setting.id()))
+	{
+		return m_ini.get(setting.configKey(), QVariant());
+	}
+	else
+	{
+		return QVariant();
+	}
+}

libsettings/src/overridesetting.cpp

@@ -0,0 +1,30 @@
+/* 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 "include/overridesetting.h"
+
+OverrideSetting::OverrideSetting(const QString &name, Setting *other, QObject *parent) :
+	Setting(name, QVariant(), parent)
+{
+	m_other = other;
+}
+
+QVariant OverrideSetting::defValue() const
+{
+	if (m_other)
+		return m_other->get();
+	else
+		return QVariant();
+}