NOISSUE Add back Legacy for migration purposes

application/pages/LegacyUpgradePage.cpp

@@ -0,0 +1,25 @@
+#include "LegacyUpgradePage.h"
+#include "ui_LegacyUpgradePage.h"
+
+#include "minecraft/legacy/LegacyInstance.h"
+
+LegacyUpgradePage::LegacyUpgradePage(LegacyInstance *inst, QWidget *parent)
+	: QWidget(parent), ui(new Ui::LegacyUpgradePage), m_inst(inst)
+{
+	ui->setupUi(this);
+}
+
+LegacyUpgradePage::~LegacyUpgradePage()
+{
+	delete ui;
+}
+
+void LegacyUpgradePage::on_upgradeButton_clicked()
+{
+	// now what?
+}
+
+bool LegacyUpgradePage::shouldDisplay() const
+{
+	return !m_inst->isRunning();
+}

application/pages/LegacyUpgradePage.h

@@ -0,0 +1,60 @@
+/* Copyright 2013-2017 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 <QWidget>
+
+#include "minecraft/legacy/LegacyInstance.h"
+#include "pages/BasePage.h"
+#include <MultiMC.h>
+
+namespace Ui
+{
+class LegacyUpgradePage;
+}
+
+class LegacyUpgradePage : public QWidget, public BasePage
+{
+	Q_OBJECT
+
+public:
+	explicit LegacyUpgradePage(LegacyInstance *inst, QWidget *parent = 0);
+	virtual ~LegacyUpgradePage();
+	virtual QString displayName() const override
+	{
+		return tr("Upgrade");
+	}
+	virtual QIcon icon() const override
+	{
+		return MMC->getThemedIcon("checkupdate");
+	}
+	virtual QString id() const override
+	{
+		return "upgrade";
+	}
+	virtual QString helpPage() const override
+	{
+		return "Legacy-upgrade";
+	}
+	virtual bool shouldDisplay() const override;
+private
+slots:
+	void on_upgradeButton_clicked();
+
+private:
+	Ui::LegacyUpgradePage *ui;
+	LegacyInstance *m_inst;
+};

application/pages/LegacyUpgradePage.ui

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>LegacyUpgradePage</class>
+ <widget class="QWidget" name="LegacyUpgradePage">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>546</width>
+    <height>405</height>
+   </rect>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout_5">
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <item>
+    <widget class="QTextBrowser" name="textBrowser">
+     <property name="html">
+      <string>&lt;html&gt;&lt;body&gt;&lt;h1&gt;Upgrade is required&lt;/h1&gt;&lt;p&gt;MultiMC now supports old Minecraft versions and all the required features in the new (OneSix) instance format. As a consequence, the old (Legacy) format has been entirely disabled and old instances need to be upgraded.&lt;/p&gt;&lt;p&gt;The upgrade will create a new instance with the same contents as the current one, in the new format. The original instance will remain untouched, in case anything goes wrong in the process.&lt;/p&gt;&lt;p&gt;Please report any issues on our &lt;a href=&quot;https://github.com/MultiMC/MultiMC5/issues&quot;&gt;github issues page&lt;/a&gt;.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+     </property>
+     <property name="openExternalLinks">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QCommandLinkButton" name="upgradeButton">
+     <property name="text">
+      <string>Upgrade the instance</string>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>