NOISSUE split GUI stuff from logic library

1 files changed, 214 insertions, 0 deletions

diff --git a/libraries/logic/settings/SettingsObject.h b/libraries/logic/settings/SettingsObject.h
new file mode 100644
index 00000000..82193903
--- /dev/null
+++ b/libraries/logic/settings/SettingsObject.h
@@ -0,0 +1,214 @@
+/* Copyright 2013-2015 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.
+ */
+
+#pragma once
+
+#include <QObject>
+#include <QMap>
+#include <QStringList>
+#include <QVariant>
+#include <memory>
+
+#include "multimc_logic_export.h"
+
+class Setting;
+class SettingsObject;
+
+typedef std::shared_ptr<SettingsObject> SettingsObjectPtr;
+
+/*!
+ * \brief The SettingsObject handles communicating settings between the application and a
+ *settings file.
+ * The class keeps a list of Setting objects. Each Setting object represents one
+ * of the application's settings. These Setting objects are registered with
+ * a SettingsObject and can be managed similarly to the way a list works.
+ *
+ * \author Andrew Okin
+ * \date 2/22/2013
+ *
+ * \sa Setting
+ */
+class MULTIMC_LOGIC_EXPORT SettingsObject : public QObject
+{
+	Q_OBJECT
+public:
+	class Lock
+	{
+	public:
+		Lock(SettingsObjectPtr locked)
+			:m_locked(locked)
+		{
+			m_locked->suspendSave();
+		}
+		~Lock()
+		{
+			m_locked->resumeSave();
+		}
+	private:
+		SettingsObjectPtr m_locked;
+	};
+public:
+	explicit SettingsObject(QObject *parent = 0);
+	virtual ~SettingsObject();
+	/*!
+	 * Registers an override setting for the given original setting in this settings object
+	 * gate decides if the passthrough (true) or the original (false) is used for value
+	 *
+	 * This will fail if there is already a setting with the same ID as
+	 * the one that is being registered.
+	 * \return A valid Setting shared pointer if successful.
+	 */
+	std::shared_ptr<Setting> registerOverride(std::shared_ptr<Setting> original, std::shared_ptr<Setting> gate);
+
+	/*!
+	 * Registers a passthorugh setting for the given original setting in this settings object
+	 * gate decides if the passthrough (true) or the original (false) is used for value
+	 *
+	 * This will fail if there is already a setting with the same ID as
+	 * the one that is being registered.
+	 * \return A valid Setting shared pointer if successful.
+	 */
+	std::shared_ptr<Setting> registerPassthrough(std::shared_ptr<Setting> original, std::shared_ptr<Setting> gate);
+
+	/*!
+	 * Registers the given setting with this SettingsObject and connects the necessary  signals.
+	 *
+	 * This will fail if there is already a setting with the same ID as
+	 * the one that is being registered.
+	 * \return A valid Setting shared pointer if successful.
+	 */
+	std::shared_ptr<Setting> registerSetting(QStringList synonyms,
+											 QVariant defVal = QVariant());
+
+	/*!
+	 * Registers the given setting with this SettingsObject and connects the necessary signals.
+	 *
+	 * This will fail if there is already a setting with the same ID as
+	 * the one that is being registered.
+	 * \return A valid Setting shared pointer if successful.
+	 */
+	std::shared_ptr<Setting> registerSetting(QString id, QVariant defVal = QVariant())
+	{
+		return registerSetting(QStringList(id), defVal);
+	}
+
+	/*!
+	 * \brief Gets the setting with the given ID.
+	 * \param id The ID of the setting to get.
+	 * \return A pointer to the setting with the given ID.
+	 * Returns null if there is no setting with the given ID.
+	 * \sa operator []()
+	 */
+	std::shared_ptr<Setting> getSetting(const QString &id) const;
+
+	/*!
+	 * \brief Gets the value of the setting with the given ID.
+	 * \param id The ID of the setting to get.
+	 * \return The setting's value as a QVariant.
+	 * If no setting with the given ID exists, returns an invalid QVariant.
+	 */
+	QVariant get(const QString &id) const;
+
+	/*!
+	 * \brief Sets the value of the setting with the given ID.
+	 * If no setting with the given ID exists, returns false
+	 * \param id The ID of the setting to change.
+	 * \param value The new value of the setting.
+	 * \return True if successful, false if it failed.
+	 */
+	bool set(const QString &id, QVariant value);
+
+	/*!
+	 * \brief Reverts the setting with the given ID to default.
+	 * \param id The ID of the setting to reset.
+	 */
+	void reset(const QString &id) const;
+
+	/*!
+	 * \brief Checks if this SettingsObject contains a setting with the given ID.
+	 * \param id The ID to check for.
+	 * \return True if the SettingsObject has a setting with the given ID.
+	 */
+	bool contains(const QString &id);
+
+	/*!
+	 * \brief Reloads the settings and emit signals for changed settings
+	 * \return True if reloading was successful
+	 */
+	virtual bool reload();
+
+	virtual void suspendSave() = 0;
+	virtual void resumeSave() = 0;
+signals:
+	/*!
+	 * \brief Signal emitted when one of this SettingsObject object's settings changes.
+	 * This is usually just connected directly to each Setting object's
+	 * SettingChanged() signals.
+	 * \param setting A reference to the Setting object that changed.
+	 * \param value The Setting object's new value.
+	 */
+	void SettingChanged(const Setting &setting, QVariant value);
+
+	/*!
+	 * \brief Signal emitted when one of this SettingsObject object's settings resets.
+	 * This is usually just connected directly to each Setting object's
+	 * settingReset() signals.
+	 * \param setting A reference to the Setting object that changed.
+	 */
+	void settingReset(const Setting &setting);
+
+protected
+slots:
+	/*!
+	 * \brief Changes a setting.
+	 * This slot is usually connected to each Setting object's
+	 * SettingChanged() signal. The signal is emitted, causing this slot
+	 * to update the setting's value in the config file.
+	 * \param setting A reference to the Setting object that changed.
+	 * \param value The setting's new value.
+	 */
+	virtual void changeSetting(const Setting &setting, QVariant value) = 0;
+
+	/*!
+	 * \brief Resets a setting.
+	 * This slot is usually connected to each Setting object's
+	 * settingReset() signal. The signal is emitted, causing this slot
+	 * to update the setting's value in the config file.
+	 * \param setting A reference to the Setting object that changed.
+	 */
+	virtual void resetSetting(const Setting &setting) = 0;
+
+protected:
+	/*!
+	 * \brief Connects the necessary signals to the given Setting.
+	 * \param setting The setting to connect.
+	 */
+	void connectSignals(const Setting &setting);
+
+	/*!
+	 * \brief Function used by Setting objects to get their values from the SettingsObject.
+	 * \param setting The
+	 * \return
+	 */
+	virtual QVariant retrieveValue(const Setting &setting) = 0;
+
+	friend class Setting;
+
+private:
+	QMap<QString, std::shared_ptr<Setting>> m_settings;
+protected:
+	bool m_suspendSave = false;
+	bool m_doSave = false;
+};