From 88318561724cae6d19f892adf778d85e6c736391 Mon Sep 17 00:00:00 2001
From: Jan Dalheimer <jan@dalheimer.de>
Date: Wed, 27 Nov 2013 15:00:44 +0100
Subject: [PATCH] Remember the last selected instance and select it on startup

---
 MultiMC.cpp                  |  1 +
 gui/MainWindow.cpp           | 26 ++++++++++++++++++++++++++
 logic/lists/InstanceList.cpp |  9 +++++++--
 logic/lists/InstanceList.h   |  6 ++++--
 4 files changed, 38 insertions(+), 4 deletions(-)

diff --git a/MultiMC.cpp b/MultiMC.cpp
index 26d7e8c8..1ac84629 100644
--- a/MultiMC.cpp
+++ b/MultiMC.cpp
@@ -327,6 +327,7 @@ void MultiMC::initGlobalSettings()
 
 
 	m_settings->registerSetting(new Setting("InstSortMode", "Name"));
+	m_settings->registerSetting(new Setting("SelectedInstance", QString()));
 
 	// Persistent value for the client ID
 	m_settings->registerSetting(new Setting("YggdrasilClientToken", ""));
diff --git a/gui/MainWindow.cpp b/gui/MainWindow.cpp
index cb81958b..a3394a82 100644
--- a/gui/MainWindow.cpp
+++ b/gui/MainWindow.cpp
@@ -244,6 +244,28 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWi
 		connect(assets_downloader, SIGNAL(finished()), SLOT(assetsFinished()));
 		assets_downloader->start();
 	}
+
+	const QString currentInstanceId = MMC->settings()->get("SelectedInstance").toString();
+	if (!currentInstanceId.isNull())
+	{
+		const QModelIndex index = MMC->instances()->getInstanceIndexById(currentInstanceId);
+		if (index.isValid())
+		{
+			const QModelIndex mappedIndex = proxymodel->mapFromSource(index);
+			view->setCurrentIndex(mappedIndex);
+		}
+		else
+		{
+			view->setCurrentIndex(proxymodel->index(0, 0));
+		}
+	}
+	else
+	{
+		view->setCurrentIndex(proxymodel->index(0, 0));
+	}
+
+	// removing this looks stupid
+	view->setFocus();
 }
 
 MainWindow::~MainWindow()
@@ -983,10 +1005,14 @@ void MainWindow::instanceChanged(const QModelIndex &current, const QModelIndex &
 		m_statusLeft->setText(m_selectedInstance->getStatusbarDescription());
 		auto ico = MMC->icons()->getIcon(iconKey);
 		ui->actionChangeInstIcon->setIcon(ico);
+
+		MMC->settings()->set("SelectedInstance", m_selectedInstance->id());
 	}
 	else
 	{
 		selectionBad();
+
+		MMC->settings()->set("SelectedInstance", QString());
 	}
 }
 
diff --git a/logic/lists/InstanceList.cpp b/logic/lists/InstanceList.cpp
index 7081dc6f..200b02df 100644
--- a/logic/lists/InstanceList.cpp
+++ b/logic/lists/InstanceList.cpp
@@ -362,7 +362,7 @@ int InstanceList::add(InstancePtr t)
 	return count() - 1;
 }
 
-InstancePtr InstanceList::getInstanceById(QString instId)
+InstancePtr InstanceList::getInstanceById(QString instId) const
 {
 	QListIterator<InstancePtr> iter(m_instances);
 	InstancePtr inst;
@@ -378,7 +378,12 @@ InstancePtr InstanceList::getInstanceById(QString instId)
 		return iter.peekPrevious();
 }
 
-int InstanceList::getInstIndex(BaseInstance *inst)
+QModelIndex InstanceList::getInstanceIndexById(const QString &id) const
+{
+	return index(getInstIndex(getInstanceById(id).get()));
+}
+
+int InstanceList::getInstIndex(BaseInstance *inst) const
 {
 	for (int i = 0; i < m_instances.count(); i++)
 	{
diff --git a/logic/lists/InstanceList.h b/logic/lists/InstanceList.h
index d08501eb..8cd39746 100644
--- a/logic/lists/InstanceList.h
+++ b/logic/lists/InstanceList.h
@@ -91,7 +91,9 @@ public:
 	int add(InstancePtr t);
 
 	/// Get an instance by ID
-	InstancePtr getInstanceById(QString id);
+	InstancePtr getInstanceById(QString id) const;
+
+	QModelIndex getInstanceIndexById(const QString &id) const;
 signals:
 	void dataIsInvalid();
 
@@ -106,7 +108,7 @@ slots:
 	void groupChanged();
 
 private:
-	int getInstIndex(BaseInstance *inst);
+	int getInstIndex(BaseInstance *inst) const;
 
 protected:
 	QString m_instDir;