Forge version list implementation. Needs integration and testing.

37 files changed, 834 insertions, 218 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index feb46278..d4f0cbbf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -172,7 +172,7 @@ gui/LabeledToolButton.h
 gui/EditNotesDialog.h
 
 # Base classes and infrastructure
-logic/InstanceVersion.h
+logic/BaseVersion.h
 logic/MinecraftVersion.h
 logic/InstanceFactory.h
 logic/BaseUpdate.h
@@ -216,10 +216,14 @@ logic/NostalgiaInstance.h
 
 # Lists
 logic/lists/InstanceList.h
-logic/lists/InstVersionList.h
+logic/lists/IconList.h
+logic/lists/BaseVersionList.h
 logic/lists/MinecraftVersionList.h
 logic/lists/LwjglVersionList.h
-logic/lists/IconList.h
+logic/lists/ForgeVersionList.h
+
+# misc model/view
+logic/EnabledItemFilter.h
 
 # Tasks
 logic/tasks/Task.h
@@ -288,10 +292,14 @@ logic/NostalgiaInstance.cpp
 
 # Lists
 logic/lists/InstanceList.cpp
-logic/lists/InstVersionList.cpp
+logic/lists/IconList.cpp
+logic/lists/BaseVersionList.cpp
 logic/lists/MinecraftVersionList.cpp
 logic/lists/LwjglVersionList.cpp
-logic/lists/IconList.cpp
+logic/lists/ForgeVersionList.cpp
+
+# misc model/view
+logic/EnabledItemFilter.cpp
 
 # Tasks
 logic/tasks/Task.cpp
diff --git a/MultiMC.cpp b/MultiMC.cpp
index b49773a1..08e5ed25 100644
--- a/MultiMC.cpp
+++ b/MultiMC.cpp
@@ -9,6 +9,10 @@
 #include "gui/mainwindow.h"
 #include "logic/lists/InstanceList.h"
 #include "logic/lists/IconList.h"
+#include "logic/lists/LwjglVersionList.h"
+#include "logic/lists/MinecraftVersionList.h"
+#include "logic/lists/ForgeVersionList.h"
+
 #include "logic/InstanceLauncher.h"
 #include "logic/net/HttpMetaCache.h"
 
@@ -158,6 +162,21 @@ MultiMC::~MultiMC()
 		delete m_qt_translator;
 		m_qt_translator = nullptr;
 	}
+	if(m_icons)
+	{
+		delete m_icons;
+		m_icons = nullptr;
+	}
+	if(m_lwjgllist)
+	{
+		delete m_lwjgllist;
+		m_lwjgllist = nullptr;
+	}
+	if(m_minecraftlist)
+	{
+		delete m_minecraftlist;
+		m_minecraftlist = nullptr;
+	}
 	delete m_settings;
 	delete m_metacache;
 }
@@ -276,6 +295,32 @@ IconList* MultiMC::icons()
 	return m_icons;
 }
 
+LWJGLVersionList* MultiMC::lwjgllist()
+{
+	if ( !m_lwjgllist )
+	{
+		m_lwjgllist = new LWJGLVersionList();
+	}
+	return m_lwjgllist;
+}
+ForgeVersionList* MultiMC::forgelist()
+{
+	if ( !m_forgelist )
+	{
+		m_forgelist = new ForgeVersionList();
+	}
+	return m_forgelist;
+}
+
+MinecraftVersionList* MultiMC::minecraftlist()
+{
+	if ( !m_minecraftlist )
+	{
+		m_minecraftlist = new MinecraftVersionList();
+	}
+	return m_minecraftlist;
+}
+
 
 int main(int argc, char *argv[])
 {
diff --git a/MultiMC.h b/MultiMC.h
index 216c670b..d3e92584 100644
--- a/MultiMC.h
+++ b/MultiMC.h
@@ -4,11 +4,14 @@
 #include "MultiMCVersion.h"
 #include "config.h"
 
+class MinecraftVersionList;
+class LWJGLVersionList;
 class HttpMetaCache;
 class SettingsObject;
 class InstanceList;
 class IconList;
 class QNetworkAccessManager;
+class ForgeVersionList;
 
 #if defined(MMC)
 #undef MMC
@@ -61,6 +64,12 @@ public:
 	{
 		return m_metacache;
 	}
+	
+	LWJGLVersionList * lwjgllist();
+	
+	ForgeVersionList * forgelist();
+	
+	MinecraftVersionList * minecraftlist();
 private:
 	void initGlobalSettings();
 	
@@ -76,5 +85,9 @@ private:
 	QNetworkAccessManager * m_qnam = nullptr;
 	HttpMetaCache * m_metacache = nullptr;
 	Status m_status = MultiMC::Failed;
+	LWJGLVersionList * m_lwjgllist = nullptr;
+	ForgeVersionList * m_forgelist = nullptr;
+	MinecraftVersionList * m_minecraftlist = nullptr;
+	
 	MultiMCVersion m_version = {VERSION_MAJOR, VERSION_MINOR, VERSION_REVISION, VERSION_BUILD};
 };
\ No newline at end of file
diff --git a/gui/ModListView.cpp b/gui/ModListView.cpp
index 34bd4af2..1d0e834c 100644
--- a/gui/ModListView.cpp
+++ b/gui/ModListView.cpp
@@ -30,6 +30,7 @@ void ModListView::setModel ( QAbstractItemModel* model )
 	auto head = header();
 	head->setStretchLastSection(false);
 	head->setSectionResizeMode(0, QHeaderView::Stretch);
-	head->setSectionResizeMode(1, QHeaderView::ResizeToContents);
+	for(int i = 1; i < head->count(); i++)
+		head->setSectionResizeMode(i, QHeaderView::ResizeToContents);
 	dropIndicatorPosition();
 }
diff --git a/gui/OneSixModEditDialog.cpp b/gui/OneSixModEditDialog.cpp
index ab6ad5f0..f778127f 100644
--- a/gui/OneSixModEditDialog.cpp
+++ b/gui/OneSixModEditDialog.cpp
@@ -22,6 +22,8 @@
 #include <QDebug>
 #include <QEvent>
 #include <QKeyEvent>
+#include "logic/OneSixVersion.h"
+#include <logic/EnabledItemFilter.h>
 
 OneSixModEditDialog::OneSixModEditDialog(OneSixInstance * inst, QWidget *parent):
 	m_inst(inst),
@@ -29,9 +31,15 @@ OneSixModEditDialog::OneSixModEditDialog(OneSixInstance * inst, QWidget *parent)
 	ui(new Ui::OneSixModEditDialog)
 {
 	ui->setupUi(this);
-	//TODO: libraries!
+	//libraries!
 	{
-		// yeah... here be the real dragons.
+		m_version = m_inst->getFullVersion();
+		
+		auto filter = new EnabledItemFilter(this);
+		filter->setActive(true);
+		filter->setSourceModel(m_version.data());
+		ui->libraryTreeView->setModel(filter);
+		ui->libraryTreeView->installEventFilter( this );
 	}
 	// Loader mods
 	{
diff --git a/gui/OneSixModEditDialog.h b/gui/OneSixModEditDialog.h
index 3430bd26..c637df01 100644
--- a/gui/OneSixModEditDialog.h
+++ b/gui/OneSixModEditDialog.h
@@ -46,6 +46,7 @@ protected:
 	bool resourcePackListFilter( QKeyEvent* ev );
 private:
 	Ui::OneSixModEditDialog *ui;
+	QSharedPointer<OneSixVersion> m_version;
 	QSharedPointer<ModList> m_mods;
 	QSharedPointer<ModList> m_resourcepacks;
 	OneSixInstance * m_inst;
diff --git a/gui/OneSixModEditDialog.ui b/gui/OneSixModEditDialog.ui
index 3feca726..bffcaed0 100644
--- a/gui/OneSixModEditDialog.ui
+++ b/gui/OneSixModEditDialog.ui
@@ -6,15 +6,15 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>543</width>
-    <height>423</height>
+    <width>555</width>
+    <height>463</height>
    </rect>
   </property>
   <property name="windowTitle">
    <string>Dialog</string>
   </property>
-  <layout class="QVBoxLayout" name="verticalLayout">
-   <item>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="0" column="0">
     <widget class="QTabWidget" name="tabWidget">
      <property name="enabled">
       <bool>true</bool>
@@ -28,26 +28,121 @@
      <property name="currentIndex">
       <number>0</number>
      </property>
-     <property name="elideMode">
-      <enum>Qt::ElideNone</enum>
-     </property>
-     <property name="tabsClosable">
-      <bool>false</bool>
-     </property>
      <widget class="QWidget" name="libTab">
       <attribute name="title">
-       <string>Library</string>
+       <string>Version</string>
       </attribute>
       <layout class="QHBoxLayout" name="horizontalLayout">
        <item>
-        <widget class="ModListView" name="jarModsTreeView">
-         <property name="verticalScrollBarPolicy">
-          <enum>Qt::ScrollBarAlwaysOn</enum>
-         </property>
-         <property name="horizontalScrollBarPolicy">
-          <enum>Qt::ScrollBarAlwaysOff</enum>
-         </property>
-        </widget>
+        <layout class="QVBoxLayout" name="verticalLayout_10">
+         <item>
+          <widget class="ModListView" name="libraryTreeView">
+           <property name="verticalScrollBarPolicy">
+            <enum>Qt::ScrollBarAlwaysOn</enum>
+           </property>
+           <property name="horizontalScrollBarPolicy">
+            <enum>Qt::ScrollBarAlwaysOff</enum>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <layout class="QHBoxLayout" name="horizontalLayout_7">
+           <item>
+            <widget class="QLabel" name="label">
+             <property name="text">
+              <string>Main Class:</string>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <widget class="QLineEdit" name="mainClassEdit"/>
+           </item>
+          </layout>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <layout class="QVBoxLayout" name="verticalLayout_4">
+         <item>
+          <widget class="QPushButton" name="forgeBrn">
+           <property name="toolTip">
+            <string>Replace any current custom version with Minecraft Forge</string>
+           </property>
+           <property name="text">
+            <string>Install Forge</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QPushButton" name="customizeBtn">
+           <property name="toolTip">
+            <string>Create an customized copy of the base version</string>
+           </property>
+           <property name="text">
+            <string>Customize</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QPushButton" name="revertBtn">
+           <property name="toolTip">
+            <string>Revert to original base version</string>
+           </property>
+           <property name="text">
+            <string>Revert</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="Line" name="line">
+           <property name="frameShadow">
+            <enum>QFrame::Sunken</enum>
+           </property>
+           <property name="orientation">
+            <enum>Qt::Horizontal</enum>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QPushButton" name="addLibraryBtn">
+           <property name="enabled">
+            <bool>false</bool>
+           </property>
+           <property name="toolTip">
+            <string>Add new libraries</string>
+           </property>
+           <property name="text">
+            <string>&amp;Add</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QPushButton" name="removeLibraryBtn">
+           <property name="enabled">
+            <bool>false</bool>
+           </property>
+           <property name="toolTip">
+            <string>Remove selected libraries</string>
+           </property>
+           <property name="text">
+            <string>&amp;Remove</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <spacer name="verticalSpacer_7">
+           <property name="orientation">
+            <enum>Qt::Vertical</enum>
+           </property>
+           <property name="sizeHint" stdset="0">
+            <size>
+             <width>20</width>
+             <height>40</height>
+            </size>
+           </property>
+          </spacer>
+         </item>
+        </layout>
        </item>
       </layout>
      </widget>
@@ -163,7 +258,7 @@
      </widget>
     </widget>
    </item>
-   <item>
+   <item row="1" column="0">
     <widget class="QDialogButtonBox" name="buttonBox">
      <property name="autoFillBackground">
       <bool>false</bool>
diff --git a/gui/lwjglselectdialog.cpp b/gui/lwjglselectdialog.cpp
index c3215b7b..7c424a6c 100644
--- a/gui/lwjglselectdialog.cpp
+++ b/gui/lwjglselectdialog.cpp
@@ -13,6 +13,7 @@
  * limitations under the License.
  */
 
+#include "MultiMC.h"
 #include "lwjglselectdialog.h"
 #include "ui_lwjglselectdialog.h"
 
@@ -24,11 +25,12 @@ LWJGLSelectDialog::LWJGLSelectDialog(QWidget *parent) :
 {
 	ui->setupUi(this);
 	ui->labelStatus->setVisible(false);
-	ui->lwjglListView->setModel(&LWJGLVersionList::get());
+	auto lwjgllist = MMC->lwjgllist();
+	ui->lwjglListView->setModel(lwjgllist);
 	
-	connect(&LWJGLVersionList::get(), SIGNAL(loadingStateUpdated(bool)), SLOT(loadingStateUpdated(bool)));
-	connect(&LWJGLVersionList::get(), SIGNAL(loadListFailed(QString)), SLOT(loadingFailed(QString)));
-	loadingStateUpdated(LWJGLVersionList::get().isLoading());
+	connect(lwjgllist, SIGNAL(loadingStateUpdated(bool)), SLOT(loadingStateUpdated(bool)));
+	connect(lwjgllist, SIGNAL(loadListFailed(QString)), SLOT(loadingFailed(QString)));
+	loadingStateUpdated(lwjgllist->isLoading());
 }
 
 LWJGLSelectDialog::~LWJGLSelectDialog()
@@ -38,15 +40,15 @@ LWJGLSelectDialog::~LWJGLSelectDialog()
 
 QString LWJGLSelectDialog::selectedVersion() const
 {
-	return LWJGLVersionList::get().data(
+	return MMC->lwjgllist()->data(
 				ui->lwjglListView->selectionModel()->currentIndex(),
 				Qt::DisplayRole).toString();
 }
 
 void LWJGLSelectDialog::on_refreshButton_clicked()
 {
-	if (!LWJGLVersionList::get().isLoading())
-		LWJGLVersionList::get().loadList();
+	if (!MMC->lwjgllist()->isLoading())
+		MMC->lwjgllist()->loadList();
 }
 
 void LWJGLSelectDialog::loadingStateUpdated(bool loading)
diff --git a/gui/mainwindow.cpp b/gui/mainwindow.cpp
index 747df047..241df383 100644
--- a/gui/mainwindow.cpp
+++ b/gui/mainwindow.cpp
@@ -154,14 +154,14 @@ MainWindow::MainWindow ( QWidget *parent )
 	// run the things that load and download other things... FIXME: this is NOT the place
 	// FIXME: invisible actions in the background = NOPE.
 	{
-		if (!MinecraftVersionList::getMainList().isLoaded())
+		if (!MMC->minecraftlist()->isLoaded())
 		{
-			m_versionLoadTask = MinecraftVersionList::getMainList().getLoadTask();
+			m_versionLoadTask = MMC->minecraftlist()->getLoadTask();
 			startTask(m_versionLoadTask);
 		}
-		if (!LWJGLVersionList::get().isLoaded())
+		if (!MMC->lwjgllist()->isLoaded())
 		{
-			LWJGLVersionList::get().loadList();
+			MMC->lwjgllist()->loadList();
 		}
 		assets_downloader = new OneSixAssets();
 		assets_downloader->start();
@@ -245,7 +245,7 @@ void MainWindow::instanceActivated ( QModelIndex index )
 
 void MainWindow::on_actionAddInstance_triggered()
 {
-	if (!MinecraftVersionList::getMainList().isLoaded() &&
+	if (!MMC->minecraftlist()->isLoaded() &&
 		m_versionLoadTask && m_versionLoadTask->isRunning())
 	{
 		QEventLoop waitLoop;
@@ -604,7 +604,7 @@ void MainWindow::on_actionChangeInstMCVersion_triggered()
 	VersionSelectDialog vselect(m_selectedInstance->versionList(), this);
 	if (vselect.exec() && vselect.selectedVersion())
 	{
-		m_selectedInstance->setIntendedVersionId(vselect.selectedVersion()->descriptor);
+		m_selectedInstance->setIntendedVersionId(vselect.selectedVersion()->descriptor());
 	}
 }
 
diff --git a/gui/newinstancedialog.cpp b/gui/newinstancedialog.cpp
index ac3bcd7d..af2b11c5 100644
--- a/gui/newinstancedialog.cpp
+++ b/gui/newinstancedialog.cpp
@@ -18,7 +18,7 @@
 #include "ui_newinstancedialog.h"
 
 #include "logic/InstanceFactory.h"
-#include "logic/InstanceVersion.h"
+#include "logic/BaseVersion.h"
 #include "logic/lists/IconList.h"
 #include "logic/lists/MinecraftVersionList.h"
 #include "logic/tasks/Task.h"
@@ -48,7 +48,7 @@ NewInstanceDialog::NewInstanceDialog(QWidget *parent) :
 		taskDlg->exec(loadTask);
 	}
 	*/
-	setSelectedVersion(MinecraftVersionList::getMainList().getLatestStable());
+	setSelectedVersion(MMC->minecraftlist()->getLatestStable());
 	InstIconKey = "infinity";
 	ui->iconButton->setIcon(MMC->icons()->getIcon(InstIconKey));
 }
@@ -63,13 +63,13 @@ void NewInstanceDialog::updateDialogState()
 	ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(!instName().isEmpty() && m_selectedVersion);
 }
 
-void NewInstanceDialog::setSelectedVersion(InstVersionPtr version)
+void NewInstanceDialog::setSelectedVersion(BaseVersionPtr version)
 {
 	m_selectedVersion = version;
 	
 	if (m_selectedVersion)
 	{
-		ui->versionTextBox->setText(version->name);
+		ui->versionTextBox->setText(version->name());
 	}
 	else
 	{
@@ -89,18 +89,18 @@ QString NewInstanceDialog::iconKey() const
 	return InstIconKey;
 }
 
-InstVersionPtr NewInstanceDialog::selectedVersion() const
+BaseVersionPtr NewInstanceDialog::selectedVersion() const
 {
 	return m_selectedVersion;
 }
 
 void NewInstanceDialog::on_btnChangeVersion_clicked()
 {
-	VersionSelectDialog vselect(&MinecraftVersionList::getMainList(), this);
+	VersionSelectDialog vselect(MMC->minecraftlist(), this);
 	vselect.exec();
 	if (vselect.result() == QDialog::Accepted)
 	{
-		InstVersionPtr version = vselect.selectedVersion();
+		BaseVersionPtr version = vselect.selectedVersion();
 		if (version)
 			setSelectedVersion(version);
 	}
diff --git a/gui/newinstancedialog.h b/gui/newinstancedialog.h
index e8c57024..408cf757 100644
--- a/gui/newinstancedialog.h
+++ b/gui/newinstancedialog.h
@@ -17,7 +17,7 @@
 #define NEWINSTANCEDIALOG_H
 
 #include <QDialog>
-#include "logic/InstanceVersion.h"
+#include "logic/BaseVersion.h"
 
 namespace Ui {
 class NewInstanceDialog;
@@ -33,13 +33,13 @@ public:
 	
 	void updateDialogState();
 	
-	void setSelectedVersion(InstVersionPtr version);
+	void setSelectedVersion(BaseVersionPtr version);
 	
 	void loadVersionList();
 	
 	QString instName() const;
 	QString iconKey() const;
-	InstVersionPtr selectedVersion() const;
+	BaseVersionPtr selectedVersion() const;
 	
 private slots:
 	void on_btnChangeVersion_clicked();
@@ -49,7 +49,7 @@ private slots:
 private:
 	Ui::NewInstanceDialog *ui;
 	
-	InstVersionPtr m_selectedVersion;
+	BaseVersionPtr m_selectedVersion;
 	QString InstIconKey;
 };
 
diff --git a/gui/versionselectdialog.cpp b/gui/versionselectdialog.cpp
index 66d772b0..b14956fd 100644
--- a/gui/versionselectdialog.cpp
+++ b/gui/versionselectdialog.cpp
@@ -22,11 +22,11 @@
 
 #include <gui/taskdialog.h>
 
-#include <logic/InstanceVersion.h>
-#include <logic/lists/InstVersionList.h>
+#include <logic/BaseVersion.h>
+#include <logic/lists/BaseVersionList.h>
 #include <logic/tasks/Task.h>
 
-VersionSelectDialog::VersionSelectDialog(InstVersionList *vlist, QWidget *parent) :
+VersionSelectDialog::VersionSelectDialog(BaseVersionList *vlist, QWidget *parent) :
 	QDialog(parent),
 	ui(new Ui::VersionSelectDialog)
 {
@@ -69,11 +69,11 @@ void VersionSelectDialog::loadList()
 	taskDlg->exec(loadTask);
 }
 
-InstVersionPtr VersionSelectDialog::selectedVersion() const
+BaseVersionPtr VersionSelectDialog::selectedVersion() const
 {
 	auto currentIndex = ui->listView->selectionModel()->currentIndex();
-	auto variant = m_proxyModel->data(currentIndex, InstVersionList::VersionPointerRole);
-	return variant.value<InstVersionPtr>();
+	auto variant = m_proxyModel->data(currentIndex, BaseVersionList::VersionPointerRole);
+	return variant.value<BaseVersionPtr>();
 }
 
 void VersionSelectDialog::on_refreshButton_clicked()
@@ -83,7 +83,7 @@ void VersionSelectDialog::on_refreshButton_clicked()
 
 void VersionSelectDialog::updateFilterState()
 {
-	m_proxyModel->setFilterKeyColumn(InstVersionList::TypeColumn);
+	m_proxyModel->setFilterKeyColumn(BaseVersionList::TypeColumn);
 	
 	QStringList filteredTypes;
 	if (!ui->filterSnapshotsCheckbox->isChecked())
diff --git a/gui/versionselectdialog.h b/gui/versionselectdialog.h
index b864aee1..57e4d0df 100644
--- a/gui/versionselectdialog.h
+++ b/gui/versionselectdialog.h
@@ -19,9 +19,9 @@
 #include <QDialog>
 
 #include <QSortFilterProxyModel>
-#include "logic/InstanceVersion.h"
+#include "logic/BaseVersion.h"
 
-class InstVersionList;
+class BaseVersionList;
 
 namespace Ui
 {
@@ -33,7 +33,7 @@ class VersionSelectDialog : public QDialog
 	Q_OBJECT
 	
 public:
-	explicit VersionSelectDialog(InstVersionList *vlist, QWidget *parent = 0);
+	explicit VersionSelectDialog(BaseVersionList *vlist, QWidget *parent = 0);
 	~VersionSelectDialog();
 	
 	virtual int exec();
@@ -41,7 +41,7 @@ public:
 	//! Starts a task that loads the list.
 	void loadList();
 	
-	InstVersionPtr selectedVersion() const;
+	BaseVersionPtr selectedVersion() const;
 	
 private slots:
 	void on_refreshButton_clicked();
@@ -51,7 +51,7 @@ private slots:
 private:
 	Ui::VersionSelectDialog *ui;
 	
-	InstVersionList *m_vlist;
+	BaseVersionList *m_vlist;
 	
 	QSortFilterProxyModel *m_proxyModel;
 };
diff --git a/logic/BaseInstance.cpp b/logic/BaseInstance.cpp
index e166449f..10bb4573 100644
--- a/logic/BaseInstance.cpp
+++ b/logic/BaseInstance.cpp
@@ -13,6 +13,7 @@
  * limitations under the License.
  */
 
+#include "MultiMC.h"
 #include "BaseInstance.h"
 #include "BaseInstance_p.h"
 
@@ -131,9 +132,9 @@ InstanceList *BaseInstance::instList() const
 		return NULL;
 }
 
-InstVersionList *BaseInstance::versionList() const
+BaseVersionList *BaseInstance::versionList() const
 {
-	return &MinecraftVersionList::getMainList();
+	return MMC->minecraftlist();
 }
 
 SettingsObject &BaseInstance::settings() const
diff --git a/logic/BaseInstance.h b/logic/BaseInstance.h
index cc9422be..fa317ba1 100644
--- a/logic/BaseInstance.h
+++ b/logic/BaseInstance.h
@@ -21,7 +21,7 @@
 #include <settingsobject.h>
 
 #include "inifile.h"
-#include "lists/InstVersionList.h"
+#include "lists/BaseVersionList.h"
 
 class QDialog;
 class BaseUpdate;
@@ -134,7 +134,7 @@ public:
 	 * \brief Gets a pointer to this instance's version list.
 	 * \return A pointer to the available version list for this instance.
 	 */
-	virtual InstVersionList *versionList() const;
+	virtual BaseVersionList *versionList() const;
 	
 	/*!
 	 * \brief Gets this instance's settings object.
diff --git a/logic/InstanceVersion.h b/logic/BaseVersion.h
index eecd9c4e..be717fee 100644
--- a/logic/InstanceVersion.h
+++ b/logic/BaseVersion.h
@@ -19,50 +19,27 @@
 /*!
  * An abstract base class for versions.
  */
-struct InstVersion
+struct BaseVersion
 {
 	/*!
-	 * Checks if this version is less (older) than the given version.
-	 * \param other The version to compare this one to.
-	 * \return True if this version is older than the given version.
-	 */
-	virtual bool operator<(const InstVersion &rhs) const
-	{
-		return timestamp < rhs.timestamp;
-	}
-
-	/*!
-	 * Checks if this version is greater (newer) than the given version.
-	 * \param other The version to compare this one to.
-	 * \return True if this version is newer than the given version.
-	 */
-	virtual bool operator>( const InstVersion& rhs ) const
-	{
-		return timestamp > rhs.timestamp;
-	}
-	
-	/*!
 	 * A string used to identify this version in config files.
 	 * This should be unique within the version list or shenanigans will occur.
 	 */
-	QString descriptor;
+	virtual QString descriptor() = 0;
+	
 	/*!
 	 * The name of this version as it is displayed to the user.
 	 * For example: "1.5.1"
 	 */
-	QString name;
+	virtual QString name() = 0;
+	
 	/*!
-	 * Gets the version's timestamp.
-	 * This is primarily used for sorting versions in a list.
+	 * This should return a string that describes
+	 * the kind of version this is (Stable, Beta, Snapshot, whatever)
 	 */
-	qint64 timestamp;
-	
-	virtual QString typeString() const
-	{
-		return "InstVersion";
-	}
+	virtual QString typeString() const = 0;
 };
 
-typedef QSharedPointer<InstVersion> InstVersionPtr;
+typedef QSharedPointer<BaseVersion> BaseVersionPtr;
 
-Q_DECLARE_METATYPE( InstVersionPtr )
\ No newline at end of file
+Q_DECLARE_METATYPE( BaseVersionPtr )
\ No newline at end of file
diff --git a/logic/EnabledItemFilter.cpp b/logic/EnabledItemFilter.cpp
new file mode 100644
index 00000000..6ecd0271
--- /dev/null
+++ b/logic/EnabledItemFilter.cpp
@@ -0,0 +1,30 @@
+#include "EnabledItemFilter.h"
+
+EnabledItemFilter::EnabledItemFilter(QObject* parent)
+	:QSortFilterProxyModel(parent)
+{
+	
+}
+
+void EnabledItemFilter::setActive(bool active)
+{
+	m_active = active;
+	invalidateFilter();
+}
+
+bool EnabledItemFilter::filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const
+{
+	if(!m_active)
+		return true;
+	QModelIndex index = sourceModel()->index(sourceRow, 0, sourceParent);
+	if(sourceModel()->flags(index) & Qt::ItemIsEnabled)
+	{
+		return true;
+	}
+	return false;
+}
+
+bool EnabledItemFilter::lessThan(const QModelIndex& left, const QModelIndex& right) const
+{
+    return QSortFilterProxyModel::lessThan(left, right);
+}
diff --git a/logic/EnabledItemFilter.h b/logic/EnabledItemFilter.h
new file mode 100644
index 00000000..cb6d4041
--- /dev/null
+++ b/logic/EnabledItemFilter.h
@@ -0,0 +1,16 @@
+#pragma once
+#include <QSortFilterProxyModel>
+
+class EnabledItemFilter : public QSortFilterProxyModel
+{
+	Q_OBJECT
+public:
+	EnabledItemFilter(QObject *parent = 0);
+	void setActive(bool active);
+	
+protected:
+	bool filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const;
+	bool lessThan(const QModelIndex &left, const QModelIndex &right) const;
+private:
+	bool m_active = false;
+};
\ No newline at end of file
diff --git a/logic/InstanceFactory.cpp b/logic/InstanceFactory.cpp
index f0630568..b5832ce5 100644
--- a/logic/InstanceFactory.cpp
+++ b/logic/InstanceFactory.cpp
@@ -22,7 +22,7 @@
 #include "LegacyInstance.h"
 #include "OneSixInstance.h"
 #include "NostalgiaInstance.h"
-#include "InstanceVersion.h"
+#include "BaseVersion.h"
 #include "MinecraftVersion.h"
 
 #include "inifile.h"
@@ -68,7 +68,7 @@ InstanceFactory::InstLoadError InstanceFactory::loadInstance(BaseInstance *&inst
 }
 
 
-InstanceFactory::InstCreateError InstanceFactory::createInstance( BaseInstance*& inst, InstVersionPtr version, const QString& instDir )
+InstanceFactory::InstCreateError InstanceFactory::createInstance( BaseInstance*& inst, BaseVersionPtr version, const QString& instDir )
 {
 	QDir rootDir(instDir);
 	
@@ -89,19 +89,19 @@ InstanceFactory::InstCreateError InstanceFactory::createInstance( BaseInstance*&
 		case MinecraftVersion::Legacy:
 			m_settings->set("InstanceType", "Legacy");
 			inst = new LegacyInstance(instDir, m_settings, this);
-			inst->setIntendedVersionId(version->descriptor);
+			inst->setIntendedVersionId(version->descriptor());
 			inst->setShouldUseCustomBaseJar(false);
 			break;
 		case MinecraftVersion::OneSix:
 			m_settings->set("InstanceType", "OneSix");
 			inst = new OneSixInstance(instDir, m_settings, this);
-			inst->setIntendedVersionId(version->descriptor);
+			inst->setIntendedVersionId(version->descriptor());
 			inst->setShouldUseCustomBaseJar(false);
 			break;
 		case MinecraftVersion::Nostalgia:
 			m_settings->set("InstanceType", "Nostalgia");
 			inst = new NostalgiaInstance(instDir, m_settings, this);
-			inst->setIntendedVersionId(version->descriptor);
+			inst->setIntendedVersionId(version->descriptor());
 			inst->setShouldUseCustomBaseJar(false);
 			break;
 		default:
diff --git a/logic/InstanceFactory.h b/logic/InstanceFactory.h
index ed54f520..1c527749 100644
--- a/logic/InstanceFactory.h
+++ b/logic/InstanceFactory.h
@@ -19,9 +19,9 @@
 #include <QMap>
 #include <QList>
 
-#include "InstanceVersion.h"
+#include "BaseVersion.h"
 
-class InstVersion;
+class BaseVersion;
 class BaseInstance;
 
 /*!
@@ -61,7 +61,7 @@ public:
 	 * - InstExists if the given instance directory is already an instance.
 	 * - CantCreateDir if the given instance directory cannot be created.
 	 */
-	InstCreateError createInstance(BaseInstance *&inst, InstVersionPtr version, const QString &instDir);
+	InstCreateError createInstance(BaseInstance *&inst, BaseVersionPtr version, const QString &instDir);
 	
 	/*!
 	 * \brief Loads an instance from the given directory.
diff --git a/logic/LegacyUpdate.cpp b/logic/LegacyUpdate.cpp
index b8e179a5..25be5e7d 100644
--- a/logic/LegacyUpdate.cpp
+++ b/logic/LegacyUpdate.cpp
@@ -34,15 +34,15 @@ void LegacyUpdate::lwjglStart()
 		return;
 	}
 	
-	auto &list = LWJGLVersionList::get();
-	if(!list.isLoaded())
+	auto list = MMC->lwjgllist();
+	if(!list->isLoaded())
 	{
 		emitFailed("Too soon! Let the LWJGL list load :)");
 		return;
 	}
 	
 	setStatus("Downloading new LWJGL.");
-	auto version = list.getVersion(lwjglVersion);
+	auto version = list->getVersion(lwjglVersion);
 	if(!version)
 	{
 		emitFailed("Game update failed: the selected LWJGL version is invalid.");
@@ -170,7 +170,7 @@ void LegacyUpdate::extractLwjgl()
 			if (name.contains(nativesDir))
 			{
 				int lastSlash = name.lastIndexOf('/');
-				int lastBackSlash = name.lastIndexOf('/');
+				int lastBackSlash = name.lastIndexOf('\\');
 				if(lastSlash != -1)
 					name = name.mid(lastSlash+1);
 				else if(lastBackSlash != -1)
diff --git a/logic/MinecraftVersion.h b/logic/MinecraftVersion.h
index 27977262..53c2f5ef 100644
--- a/logic/MinecraftVersion.h
+++ b/logic/MinecraftVersion.h
@@ -15,17 +15,16 @@
 
 #pragma once
 
-#include "InstanceVersion.h"
+#include "BaseVersion.h"
 #include <QStringList>
 
-struct MinecraftVersion : public InstVersion
+struct MinecraftVersion : public BaseVersion
 {
-	// From InstVersion:
-	/*
-	QString m_descriptor;
-	QString m_name;
-	qint64 m_timestamp;
-	*/
+	/*!
+	 * Gets the version's timestamp.
+	 * This is primarily used for sorting versions in a list.
+	 */
+	qint64 timestamp;
 	
 	/// The URL that this version will be downloaded from. maybe.
 	QString download_url;
@@ -44,6 +43,20 @@ struct MinecraftVersion : public InstVersion
 	/// is this a snapshot?
 	bool is_snapshot = false;
 	
+	QString m_name;
+	
+	QString m_descriptor;
+	
+    virtual QString descriptor()
+	{
+		return m_descriptor;
+	}
+	
+    virtual QString name()
+	{
+		return m_name;
+	}
+	
 	virtual QString typeString() const
 	{
 		QStringList pre_final;
diff --git a/logic/OneSixInstance.cpp b/logic/OneSixInstance.cpp
index c926df60..7b038c46 100644
--- a/logic/OneSixInstance.cpp
+++ b/logic/OneSixInstance.cpp
@@ -214,6 +214,13 @@ bool OneSixInstance::shouldUpdate() const
 	return true;
 }
 
+bool OneSixInstance::versionIsCustom()
+{
+	QString verpath_custom = PathCombine(instanceRoot(), "custom.json");
+	QFile versionfile(verpath_custom);
+	return versionfile.exists();
+}
+
 QString OneSixInstance::currentVersionId() const
 {
 	return intendedVersionId();
@@ -224,6 +231,13 @@ bool OneSixInstance::reloadFullVersion()
 	I_D(OneSixInstance);
 	
 	QString verpath = PathCombine(instanceRoot(), "version.json");
+	{
+		QString verpath_custom = PathCombine(instanceRoot(), "custom.json");
+		QFile versionfile(verpath_custom);
+		if(versionfile.exists())
+			verpath = verpath_custom;
+	}
+	
 	QFile versionfile(verpath);
 	if(versionfile.exists() && versionfile.open(QIODevice::ReadOnly))
 	{
@@ -264,7 +278,12 @@ bool OneSixInstance::menuActionEnabled ( QString action_name ) const
 
 QString OneSixInstance::getStatusbarDescription()
 {
-	return "One Six : " + intendedVersionId();
+	QString descr = "One Six : " + intendedVersionId();
+	if(versionIsCustom())
+	{
+		descr + " (custom)";
+	}
+	return descr;
 }
 
 QString OneSixInstance::loaderModsDir() const
diff --git a/logic/OneSixInstance.h b/logic/OneSixInstance.h
index a4c67ed1..72bde630 100644
--- a/logic/OneSixInstance.h
+++ b/logic/OneSixInstance.h
@@ -41,6 +41,8 @@ public:
 	bool reloadFullVersion();
 	/// get the current full version info
 	QSharedPointer<OneSixVersion> getFullVersion();
+	/// is the current version original, or custom?
+	bool versionIsCustom();
 	
 	virtual QString defaultBaseJar() const;
 	virtual QString defaultCustomBaseJar() const;
diff --git a/logic/OneSixLibrary.cpp b/logic/OneSixLibrary.cpp
index a109a7f0..a45a4aec 100644
--- a/logic/OneSixLibrary.cpp
+++ b/logic/OneSixLibrary.cpp
@@ -1,12 +1,13 @@
 #include "OneSixLibrary.h"
 #include "OneSixRule.h"
-
+#include "OpSys.h"
 void OneSixLibrary::finalize()
 {
 	QStringList parts = m_name.split ( ':' );
 	QString relative = parts[0];
 	relative.replace ( '.','/' );
 	relative += '/' + parts[1] + '/' + parts[2] + '/' + parts[1] + '-' + parts[2];
+	
 	if ( !m_is_native )
 		relative += ".jar";
 	else
@@ -21,9 +22,12 @@ void OneSixLibrary::finalize()
 			relative += ".jar";
 		}
 	}
+	
+	m_decentname = parts[1];
+	m_decentversion = parts[2];
 	m_storage_path = relative;
 	m_download_path = m_base_url + relative;
-
+	
 	if ( m_rules.empty() )
 	{
 		m_is_active = true;
@@ -42,6 +46,11 @@ void OneSixLibrary::finalize()
 	if ( m_is_native )
 	{
 		m_is_active = m_is_active && m_native_suffixes.contains ( currentSystem );
+		m_decenttype = "Native";
+	}
+	else
+	{
+		m_decenttype = "Java";
 	}
 }
 
diff --git a/logic/OneSixLibrary.h b/logic/OneSixLibrary.h
index 856e409c..ac16d3d3 100644
--- a/logic/OneSixLibrary.h
+++ b/logic/OneSixLibrary.h
@@ -16,6 +16,12 @@ private:
 	QList<QSharedPointer<Rule> > m_rules;
 	
 	// derived values used for real things
+	/// a decent name fit for display
+	QString m_decentname;
+	/// a decent version fit for display
+	QString m_decentversion;
+	/// a decent type fit for display
+	QString m_decenttype;
 	/// where to store the lib locally
 	QString m_storage_path;
 	/// where to download the lib from
@@ -48,8 +54,24 @@ public:
 	
 	/// Set the library composite name
 	void setName(QString name);
+	/// get a decent-looking name
+	QString name()
+	{
+		return m_decentname;
+	}
+	/// get a decent-looking version
+	QString version()
+	{
+		return m_decentversion;
+	}
+	/// what kind of library is it? (for display)
+	QString type()
+	{
+		return m_decenttype;
+	}
 	/// Set the url base for downloads
 	void setBaseUrl(QString base_url);
+	
 	/// Call this to mark the library as 'native' (it's a zip archive with DLLs)
 	void setIsNative();
 	/// Attach a name suffix to the specified OS native
diff --git a/logic/OneSixUpdate.cpp b/logic/OneSixUpdate.cpp
index a58a9626..67395818 100644
--- a/logic/OneSixUpdate.cpp
+++ b/logic/OneSixUpdate.cpp
@@ -49,7 +49,7 @@ void OneSixUpdate::executeTask()
 	}
 	
 	// Get a pointer to the version object that corresponds to the instance's version.
-	targetVersion = MinecraftVersionList::getMainList().findVersion(intendedVersion).dynamicCast<MinecraftVersion>();
+	targetVersion = MMC->minecraftlist()->findVersion(intendedVersion).dynamicCast<MinecraftVersion>();
 	if(targetVersion == nullptr)
 	{
 		// don't do anything if it was invalid
@@ -72,7 +72,7 @@ void OneSixUpdate::versionFileStart()
 	setStatus("Getting the version files from Mojang.");
 	
 	QString urlstr("http://s3.amazonaws.com/Minecraft.Download/versions/");
-	urlstr += targetVersion->descriptor + "/" + targetVersion->descriptor + ".json";
+	urlstr += targetVersion->descriptor() + "/" + targetVersion->descriptor() + ".json";
 	auto job = new DownloadJob("Version index");
 	job->add(QUrl(urlstr));
 	specificVersionDownloadJob.reset(job);
@@ -85,31 +85,46 @@ void OneSixUpdate::versionFileStart()
 void OneSixUpdate::versionFileFinished()
 {
 	DownloadPtr DlJob = specificVersionDownloadJob->first();
+	OneSixInstance * inst = (OneSixInstance *) m_inst;
 	
-	QString version_id = targetVersion->descriptor;
+	QString version_id = targetVersion->descriptor();
 	QString inst_dir = m_inst->instanceRoot();
 	// save the version file in $instanceId/version.json
 	{
 		QString version1 =  PathCombine(inst_dir, "/version.json");
 		ensureFilePathExists(version1);
 		// FIXME: detect errors here, download to a temp file, swap
-		QFile  vfile1 (version1);
-		vfile1.open(QIODevice::Truncate | QIODevice::WriteOnly );
-		vfile1.write(DlJob.dynamicCast<ByteArrayDownload>()->m_data);
-		vfile1.close();
+		QSaveFile vfile1 (version1);
+		if(!vfile1.open(QIODevice::Truncate | QIODevice::WriteOnly ))
+		{
+			emitFailed("Can't open " + version1 + " for writing.");
+			return;
+		}
+		auto data = DlJob.dynamicCast<ByteArrayDownload>()->m_data;
+		qint64 actual = 0;
+		if((actual = vfile1.write(data)) != data.size())
+		{
+			emitFailed("Failed to write into " + version1 + ". Written " + actual + " out of " + data.size() + '.');
+			return;
+		}
+		if(!vfile1.commit())
+		{
+			emitFailed("Can't commit changes to " + version1);
+			return;
+		}
 	}
 	
 	// the version is downloaded safely. update is 'done' at this point
 	m_inst->setShouldUpdate(false);
-	// save the version file in versions/$version/$version.json
-	/*
-		//QString version2 =  QString("versions/") + version_id + "/" + version_id + ".json";
-		//ensurePathExists(version2);
-		//QFile  vfile2 (version2);
-		//vfile2.open(QIODevice::Truncate | QIODevice::WriteOnly );
-		//vfile2.write(DlJob->m_data);
-		//vfile2.close();
-	*/
+	
+	// delete any custom version inside the instance (it's no longer relevant, we did an update)
+	QString custom =  PathCombine(inst_dir, "/custom.json");
+	QFile finfo(custom);
+	if(finfo.exists())
+	{
+		finfo.remove();
+	}
+	inst->reloadFullVersion();
 	
 	jarlibStart();
 }
diff --git a/logic/OneSixVersion.cpp b/logic/OneSixVersion.cpp
index 7ffe9a94..dc1b5d6f 100644
--- a/logic/OneSixVersion.cpp
+++ b/logic/OneSixVersion.cpp
@@ -28,3 +28,74 @@ QList<QSharedPointer<OneSixLibrary> > OneSixVersion::getActiveNativeLibs()
 }
 
 
+QVariant OneSixVersion::data(const QModelIndex& index, int role) const
+{
+	if(!index.isValid())
+		return QVariant();
+	
+	int row = index.row();
+	int column = index.column();
+	
+	if(row < 0 || row >= libraries.size())
+		return QVariant();
+	
+	if(role == Qt::DisplayRole)
+	{
+		switch(column)
+		{
+			case 0:
+				return libraries[row]->name();
+			case 1:
+				return libraries[row]->type();
+			case 2:
+				return libraries[row]->version();
+			default:
+				return QVariant();
+		}
+	}
+	return QVariant();
+}
+
+Qt::ItemFlags OneSixVersion::flags(const QModelIndex& index) const
+{
+	if(!index.isValid())
+		return Qt::NoItemFlags;
+	int row = index.row();
+	if(libraries[row]->isActive())
+	{
+		return Qt::ItemIsSelectable | Qt::ItemIsEnabled | Qt::ItemNeverHasChildren;
+	}
+	else
+	{
+		return Qt::ItemNeverHasChildren;
+	}
+	//return QAbstractListModel::flags(index);
+}
+
+
+QVariant OneSixVersion::headerData ( int section, Qt::Orientation orientation, int role ) const
+{
+	if (role != Qt::DisplayRole || orientation != Qt::Horizontal)
+		return QVariant();
+	switch (section)
+	{
+	case 0:
+		return QString("Name");
+	case 1:
+		return QString("Type");
+	case 2:
+		return QString("Version");
+	default:
+		return QString();
+	}
+}
+
+int OneSixVersion::rowCount(const QModelIndex& parent) const
+{
+	return libraries.size();
+}
+
+int OneSixVersion::columnCount(const QModelIndex& parent) const
+{
+    return 3;
+}
diff --git a/logic/OneSixVersion.h b/logic/OneSixVersion.h
index 8f01f82d..6a6a5b4b 100644
--- a/logic/OneSixVersion.h
+++ b/logic/OneSixVersion.h
@@ -2,9 +2,15 @@
 #include <QtCore>
 class OneSixLibrary;
 
-class OneSixVersion
+class OneSixVersion : public QAbstractListModel
 {
 public:
+	virtual QVariant data ( const QModelIndex& index, int role = Qt::DisplayRole ) const;
+	virtual int rowCount ( const QModelIndex& parent = QModelIndex() ) const;
+	virtual QVariant headerData ( int section, Qt::Orientation orientation, int role = Qt::DisplayRole ) const;
+	virtual int columnCount ( const QModelIndex& parent ) const;
+    virtual Qt::ItemFlags flags(const QModelIndex& index) const;
+public:
 	/// the ID - determines which jar to use! ACTUALLY IMPORTANT!
 	QString id;
 	/// Last updated time - as a string
@@ -58,6 +64,7 @@ public:
 	// QList<Rule> rules;
 	
 public:
+	
 	OneSixVersion()
 	{
 		minimumLauncherVersion = 0xDEADBEEF;
@@ -65,4 +72,4 @@ public:
 	
 	QList<QSharedPointer<OneSixLibrary> > getActiveNormalLibs();
 	QList<QSharedPointer<OneSixLibrary> > getActiveNativeLibs();
-};
\ No newline at end of file
+};
diff --git a/logic/lists/InstVersionList.cpp b/logic/lists/BaseVersionList.cpp
index 7dc67155..61da5eeb 100644
--- a/logic/lists/InstVersionList.cpp
+++ b/logic/lists/BaseVersionList.cpp
@@ -13,33 +13,33 @@
  * limitations under the License.
  */
 
-#include "logic/lists/InstVersionList.h"
-#include "logic/InstanceVersion.h"
+#include "logic/lists/BaseVersionList.h"
+#include "logic/BaseVersion.h"
 
-InstVersionList::InstVersionList(QObject *parent) :
+BaseVersionList::BaseVersionList(QObject *parent) :
 	QAbstractListModel(parent)
 {
 }
 
-InstVersionPtr InstVersionList::findVersion( const QString& descriptor )
+BaseVersionPtr BaseVersionList::findVersion( const QString& descriptor )
 {
 	for (int i = 0; i < count(); i++)
 	{
-		if (at(i)->descriptor == descriptor)
+		if (at(i)->descriptor() == descriptor)
 			return at(i);
 	}
-	return InstVersionPtr();
+	return BaseVersionPtr();
 }
 
-InstVersionPtr InstVersionList::getLatestStable() const
+BaseVersionPtr BaseVersionList::getLatestStable() const
 {
 	if (count() <= 0)
-		return InstVersionPtr();
+		return BaseVersionPtr();
 	else
 		return at(0);
 }
 
-QVariant InstVersionList::data(const QModelIndex &index, int role) const
+QVariant BaseVersionList::data(const QModelIndex &index, int role) const
 {
 	if (!index.isValid())
 		return QVariant();
@@ -48,7 +48,7 @@ QVariant InstVersionList::data(const QModelIndex &index, int role) const
 		return QVariant();
 	
 	
-	InstVersionPtr version = at(index.row());
+	BaseVersionPtr version = at(index.row());
 	
 	switch (role)
 	{
@@ -56,20 +56,17 @@ QVariant InstVersionList::data(const QModelIndex &index, int role) const
 		switch (index.column())
 		{
 		case NameColumn:
-			return version->name;
+			return version->name();
 			
 		case TypeColumn:
 			return version->typeString();
 			
-		case TimeColumn:
-			return version->timestamp;
-			
 		default:
 			return QVariant();
 		}
 		
 	case Qt::ToolTipRole:
-		return version->descriptor;
+		return version->descriptor();
 		
 	case VersionPointerRole:
 		return qVariantFromValue(version);
@@ -79,7 +76,7 @@ QVariant InstVersionList::data(const QModelIndex &index, int role) const
 	}
 }
 
-QVariant InstVersionList::headerData(int section, Qt::Orientation orientation, int role) const
+QVariant BaseVersionList::headerData(int section, Qt::Orientation orientation, int role) const
 {
 	switch (role)
 	{
@@ -91,9 +88,6 @@ QVariant InstVersionList::headerData(int section, Qt::Orientation orientation, i
 			
 		case TypeColumn:
 			return "Type";
-			
-		case TimeColumn:
-			return "Time";
 		
 		default:
 			return QVariant();
@@ -117,13 +111,13 @@ QVariant InstVersionList::headerData(int section, Qt::Orientation orientation, i
 	}
 }
 
-int InstVersionList::rowCount(const QModelIndex &parent) const
+int BaseVersionList::rowCount(const QModelIndex &parent) const
 {
 	// Return count
 	return count();
 }
 
-int InstVersionList::columnCount(const QModelIndex &parent) const
+int BaseVersionList::columnCount(const QModelIndex &parent) const
 {
 	return 2;
 }
diff --git a/logic/lists/InstVersionList.h b/logic/lists/BaseVersionList.h
index bc6aa5d4..d37431ed 100644
--- a/logic/lists/InstVersionList.h
+++ b/logic/lists/BaseVersionList.h
@@ -20,7 +20,7 @@
 #include <QAbstractListModel>
 #include <QSharedPointer>
 
-#include "logic/InstanceVersion.h"
+#include "logic/BaseVersion.h"
 
 class Task;
 
@@ -36,7 +36,7 @@ class Task;
  * all have a default implementation, but they can be overridden by plugins to
  * change the behavior of the list.
  */
-class InstVersionList : public QAbstractListModel
+class BaseVersionList : public QAbstractListModel
 {
 	Q_OBJECT
 public:
@@ -57,7 +57,7 @@ public:
 		TimeColumn
 	};
 	
-	explicit InstVersionList(QObject *parent = 0);
+	explicit BaseVersionList(QObject *parent = 0);
 	
 	/*!
 	 * \brief Gets a task that will reload the version list.
@@ -71,7 +71,7 @@ public:
 	virtual bool isLoaded() = 0;
 	
 	//! Gets the version at the given index.
-	virtual const InstVersionPtr at(int i) const = 0;
+	virtual const BaseVersionPtr at(int i) const = 0;
 	
 	//! Returns the number of versions in the list.
 	virtual int count() const = 0;
@@ -90,14 +90,14 @@ public:
 	 * \return A const pointer to the version with the given descriptor. NULL if
 	 * one doesn't exist.
 	 */
-	virtual InstVersionPtr findVersion(const QString &descriptor);
+	virtual BaseVersionPtr findVersion(const QString &descriptor);
 	
 	/*!
 	 * \brief Gets the latest stable version of this instance type.
 	 * This is the version that will be selected by default.
 	 * By default, this is simply the first version in the list.
 	 */
-	virtual InstVersionPtr getLatestStable() const;
+	virtual BaseVersionPtr getLatestStable() const;
 	
 	/*!
 	 * Sorts the version list.
@@ -117,5 +117,5 @@ protected slots:
 	 * then copies the versions and sets their parents correctly.
 	 * \param versions List of versions whose parents should be set.
 	 */
-	virtual void updateListData(QList<InstVersionPtr > versions) = 0;
+	virtual void updateListData(QList<BaseVersionPtr > versions) = 0;
 };
diff --git a/logic/lists/ForgeVersionList.cpp b/logic/lists/ForgeVersionList.cpp
new file mode 100644
index 00000000..f45b8b6b
--- /dev/null
+++ b/logic/lists/ForgeVersionList.cpp
@@ -0,0 +1,200 @@
+/* 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 "ForgeVersionList.h"
+#include <logic/net/DownloadJob.h>
+#include "MultiMC.h"
+
+#include <QtNetwork>
+
+#include <QtXml>
+
+#include <QRegExp>
+
+#define JSON_URL "http://files.minecraftforge.net/minecraftforge/json"
+
+
+ForgeVersionList::ForgeVersionList(QObject* parent): BaseVersionList(parent)
+{
+	
+}
+
+Task *ForgeVersionList::getLoadTask()
+{
+	return new ForgeListLoadTask(this);
+}
+
+bool ForgeVersionList::isLoaded()
+{
+	return m_loaded;
+}
+
+const BaseVersionPtr ForgeVersionList::at(int i) const
+{
+	return m_vlist.at(i);
+}
+
+int ForgeVersionList::count() const
+{
+	return m_vlist.count();
+}
+/*
+bool cmpVersions(BaseVersionPtr first, BaseVersionPtr second)
+{
+	const BaseVersion & left = *first;
+	const BaseVersion & right = *second;
+	return left > right;
+}
+
+void MinecraftVersionList::sort()
+{
+	beginResetModel();
+	qSort(m_vlist.begin(), m_vlist.end(), cmpVersions);
+	endResetModel();
+}
+*/
+BaseVersionPtr ForgeVersionList::getLatestStable() const
+{
+	return BaseVersionPtr();
+}
+
+void ForgeVersionList::updateListData(QList<BaseVersionPtr > versions)
+{
+	beginResetModel();
+	m_vlist = versions;
+	m_loaded = true;
+	endResetModel();
+	// NOW SORT!!
+	// sort();
+}
+
+void ForgeVersionList::sort()
+{
+	// NO-OP for now
+}
+
+
+ForgeListLoadTask::ForgeListLoadTask(ForgeVersionList* vlist): Task()
+{
+	m_list = vlist;
+}
+
+
+void ForgeListLoadTask::executeTask()
+{
+	auto job = new DownloadJob("Version index");
+	job->add(QUrl(JSON_URL));
+	listJob.reset(job);
+	connect(listJob.data(), SIGNAL(succeeded()), SLOT(list_downloaded()));
+	connect(listJob.data(), SIGNAL(failed()), SLOT(versionFileFailed()));
+	connect(listJob.data(), SIGNAL(progress(qint64,qint64)), SLOT(updateDownloadProgress(qint64,qint64)));
+	listJob->start();
+}
+
+void ForgeListLoadTask::list_downloaded()
+{
+	auto DlJob = listJob->first();
+	auto data = DlJob.dynamicCast<ByteArrayDownload>()->m_data;
+	
+	
+	QJsonParseError jsonError;
+	QJsonDocument jsonDoc = QJsonDocument::fromJson(data, &jsonError);
+	DlJob.reset();
+	
+	if (jsonError.error != QJsonParseError::NoError)
+	{
+		emitFailed("Error parsing version list JSON:" + jsonError.errorString());
+		return;
+	}
+
+	if(!jsonDoc.isObject())
+	{
+		emitFailed("Error parsing version list JSON: jsonDoc is not an object");
+		return;
+	}
+	
+	QJsonObject root = jsonDoc.object();
+	
+	// Now, get the array of versions.
+	if(!root.value("builds").isArray())
+	{
+		emitFailed("Error parsing version list JSON: version list object is missing 'builds' array");
+		return;
+	}
+	QJsonArray builds = root.value("builds").toArray();
+	
+	QList<BaseVersionPtr > tempList;
+	for (int i = 0; i < builds.count(); i++)
+	{
+		// Load the version info.
+		if(!builds[i].isObject())
+		{
+			//FIXME: log this somewhere
+			continue;
+		}
+		QJsonObject obj = builds[i].toObject();
+		int build_nr = obj.value("build").toDouble(0);
+		if(!build_nr)
+			continue;
+		QJsonArray files = root.value("files").toArray();
+		QString url, jobbuildver, mcver, buildtype, filename;
+		QString changelog_url, installer_url;
+		bool valid = false;
+		for(int j = 0; j < files.count(); j++)
+		{
+			if(!files[j].isObject())
+				continue;
+			QJsonObject file = files[j].toObject();
+			buildtype = file.value("buildtype").toString();
+			if((buildtype == "client" || buildtype == "universal") && !valid)
+			{
+				mcver = file.value("mcver").toString();
+				url = file.value("url").toString();
+				jobbuildver = file.value("jobbuildver").toString();
+				int lastSlash = url.lastIndexOf('/');
+				filename = url.mid(lastSlash+1);
+				valid = true;
+			}
+			else if(buildtype == "changelog")
+			{
+				QString ext = file.value("ext").toString();
+				if(ext.isEmpty())
+					continue;
+				changelog_url = file.value("url").toString();
+			}
+			else if(buildtype == "installer")
+			{
+				installer_url = file.value("url").toString();
+			}
+		}
+		if(valid)
+		{
+			// Now, we construct the version object and add it to the list.
+			QSharedPointer<ForgeVersion> fVersion(new ForgeVersion());
+			fVersion->universal_url = url;
+			fVersion->changelog_url = changelog_url;
+			fVersion->installer_url = installer_url;
+			fVersion->jobbuildver = jobbuildver;
+			fVersion->mcver = mcver;
+			fVersion->filename = filename;
+			fVersion->m_buildnr = build_nr;
+			tempList.append(fVersion);
+		}
+	}
+	m_list->updateListData(tempList);
+	
+	emitSucceeded();
+	return;
+}
diff --git a/logic/lists/ForgeVersionList.h b/logic/lists/ForgeVersionList.h
new file mode 100644
index 00000000..8d4a2d46
--- /dev/null
+++ b/logic/lists/ForgeVersionList.h
@@ -0,0 +1,98 @@
+/* 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.
+ */
+
+#pragma once
+
+#include <QObject>
+#include <QAbstractListModel>
+#include <QSharedPointer>
+#include <QUrl>
+
+#include <QNetworkReply>
+#include "BaseVersionList.h"
+#include "logic/tasks/Task.h"
+#include "logic/net/DownloadJob.h"
+
+class ForgeVersion;
+typedef QSharedPointer<ForgeVersion> PtrForgeVersion;
+
+struct ForgeVersion : public BaseVersion
+{
+	virtual QString descriptor()
+	{
+		return filename;
+	};
+	virtual QString name()
+	{
+		return "Forge " + jobbuildver + " (" + mcver + ")";
+	};
+	virtual QString typeString() const
+	{
+		if(installer_url.isEmpty())
+			return "Universal";
+		else
+			return "Installer";
+	};
+	
+	int m_buildnr = 0;
+	QString universal_url;
+	QString changelog_url;
+	QString installer_url;
+	QString jobbuildver;
+	QString mcver;
+	QString filename;
+};
+
+class ForgeVersionList : public BaseVersionList
+{
+	Q_OBJECT
+public:
+	friend class ForgeListLoadTask;
+	
+	explicit ForgeVersionList(QObject *parent = 0);
+	
+	virtual Task *getLoadTask();
+	virtual bool isLoaded();
+	virtual const BaseVersionPtr at(int i) const;
+	virtual int count() const;
+	virtual void sort();
+	
+	virtual BaseVersionPtr getLatestStable() const;
+	
+protected:
+	QList<BaseVersionPtr > m_vlist;
+	
+	bool m_loaded;
+	
+protected slots:
+	virtual void updateListData(QList<BaseVersionPtr > versions);
+};
+
+class ForgeListLoadTask : public Task
+{
+	Q_OBJECT
+	
+public:
+	explicit ForgeListLoadTask(ForgeVersionList *vlist);
+	
+	virtual void executeTask();
+	
+protected slots:
+	void list_downloaded();
+	
+protected:
+	DownloadJobPtr listJob;
+	ForgeVersionList *m_list;
+};
diff --git a/logic/lists/LwjglVersionList.cpp b/logic/lists/LwjglVersionList.cpp
index d7826a82..b3e2dab4 100644
--- a/logic/lists/LwjglVersionList.cpp
+++ b/logic/lists/LwjglVersionList.cpp
@@ -24,14 +24,6 @@
 
 #define RSS_URL "http://sourceforge.net/api/file/index/project-id/58488/mtime/desc/rss"
 
-LWJGLVersionList mainVersionList;
-
-LWJGLVersionList &LWJGLVersionList::get()
-{
-	return mainVersionList;
-}
-
-
 LWJGLVersionList::LWJGLVersionList(QObject *parent) :
 	QAbstractListModel(parent)
 {
diff --git a/logic/lists/LwjglVersionList.h b/logic/lists/LwjglVersionList.h
index 638a0b67..23e92a1a 100644
--- a/logic/lists/LwjglVersionList.h
+++ b/logic/lists/LwjglVersionList.h
@@ -53,8 +53,6 @@ class LWJGLVersionList : public QAbstractListModel
 public:
 	explicit LWJGLVersionList(QObject *parent = 0);
 	
-	static LWJGLVersionList &get();
-	
 	bool isLoaded() { return m_vlist.length() > 0; }
 	
 	const PtrLWJGLVersion getVersion(const QString &versionName);
diff --git a/logic/lists/MinecraftVersionList.cpp b/logic/lists/MinecraftVersionList.cpp
index 42fb1b50..86ba0792 100644
--- a/logic/lists/MinecraftVersionList.cpp
+++ b/logic/lists/MinecraftVersionList.cpp
@@ -34,10 +34,8 @@
 #define ASSETS_URLBASE "http://assets.minecraft.net/"
 #define MCN_URLBASE "http://sonicrules.org/mcnweb.py"
 
-MinecraftVersionList mcVList;
-
 MinecraftVersionList::MinecraftVersionList(QObject *parent) :
-	InstVersionList(parent)
+	BaseVersionList(parent)
 {
 	
 }
@@ -52,7 +50,7 @@ bool MinecraftVersionList::isLoaded()
 	return m_loaded;
 }
 
-const InstVersionPtr MinecraftVersionList::at(int i) const
+const BaseVersionPtr MinecraftVersionList::at(int i) const
 {
 	return m_vlist.at(i);
 }
@@ -62,11 +60,11 @@ int MinecraftVersionList::count() const
 	return m_vlist.count();
 }
 
-bool cmpVersions(InstVersionPtr first, InstVersionPtr second)
+bool cmpVersions(BaseVersionPtr first, BaseVersionPtr second)
 {
-	const InstVersion & left = *first;
-	const InstVersion & right = *second;
-	return left > right;
+	auto left = first.dynamicCast<MinecraftVersion>();
+	auto right = second.dynamicCast<MinecraftVersion>();
+	return left->timestamp > right->timestamp;
 }
 
 void MinecraftVersionList::sort()
@@ -76,7 +74,7 @@ void MinecraftVersionList::sort()
 	endResetModel();
 }
 
-InstVersionPtr MinecraftVersionList::getLatestStable() const
+BaseVersionPtr MinecraftVersionList::getLatestStable() const
 {
 	for (int i = 0; i < m_vlist.length(); i++)
 	{
@@ -86,15 +84,10 @@ InstVersionPtr MinecraftVersionList::getLatestStable() const
 			return m_vlist.at(i);
 		}
 	}
-	return InstVersionPtr();
-}
-
-MinecraftVersionList &MinecraftVersionList::getMainList()
-{
-	return mcVList;
+	return BaseVersionPtr();
 }
 
-void MinecraftVersionList::updateListData(QList<InstVersionPtr > versions)
+void MinecraftVersionList::updateListData(QList<BaseVersionPtr > versions)
 {
 	beginResetModel();
 	m_vlist = versions;
@@ -214,7 +207,7 @@ void MCVListLoadTask::list_downloaded()
 	}
 	QJsonArray versions = root.value("versions").toArray();
 	
-	QList<InstVersionPtr > tempList;
+	QList<BaseVersionPtr > tempList;
 	for (int i = 0; i < versions.count(); i++)
 	{
 		bool is_snapshot = false;
@@ -280,7 +273,7 @@ void MCVListLoadTask::list_downloaded()
 		
 		// Now, we construct the version object and add it to the list.
 		QSharedPointer<MinecraftVersion> mcVersion(new MinecraftVersion());
-		mcVersion->name = mcVersion->descriptor = versionID;
+		mcVersion->m_name = mcVersion->m_descriptor = versionID;
 		mcVersion->timestamp = versionTime.toMSecsSinceEpoch();
 		mcVersion->download_url = dlUrl;
 		mcVersion->is_latest = is_latest;
@@ -293,8 +286,3 @@ void MCVListLoadTask::list_downloaded()
 	emitSucceeded();
 	return;
 }
-
-// FIXME: we should have a local cache of the version list and a local cache of version data
-bool MCVListLoadTask::loadFromVList()
-{
-}
diff --git a/logic/lists/MinecraftVersionList.h b/logic/lists/MinecraftVersionList.h
index 0477379f..8937ba7b 100644
--- a/logic/lists/MinecraftVersionList.h
+++ b/logic/lists/MinecraftVersionList.h
@@ -20,14 +20,14 @@
 #include <QSet>
 #include <QSharedPointer>
 
-#include "InstVersionList.h"
+#include "BaseVersionList.h"
 #include "logic/tasks/Task.h"
 #include "logic/MinecraftVersion.h"
 
 class MCVListLoadTask;
 class QNetworkReply;
 
-class MinecraftVersionList : public InstVersionList
+class MinecraftVersionList : public BaseVersionList
 {
 	Q_OBJECT
 public:
@@ -37,25 +37,19 @@ public:
 	
 	virtual Task *getLoadTask();
 	virtual bool isLoaded();
-	virtual const InstVersionPtr at(int i) const;
+	virtual const BaseVersionPtr at(int i) const;
 	virtual int count() const;
 	virtual void sort();
 	
-	virtual InstVersionPtr getLatestStable() const;
-	
-	/*!
-	 * Gets the main version list instance.
-	 */
-	static MinecraftVersionList &getMainList();
-	
+	virtual BaseVersionPtr getLatestStable() const;
 	
 protected:
-	QList<InstVersionPtr > m_vlist;
+	QList<BaseVersionPtr> m_vlist;
 	
 	bool m_loaded;
 	
 protected slots:
-	virtual void updateListData(QList<InstVersionPtr > versions);
+	virtual void updateListData(QList<BaseVersionPtr > versions);
 };
 
 class MCVListLoadTask : public Task
@@ -72,9 +66,6 @@ protected slots:
 	void list_downloaded();
 	
 protected:
-	//! Loads versions from Mojang's official version list.
-	bool loadFromVList();
-	
 	QNetworkReply *vlistReply;
 	MinecraftVersionList *m_list;
 	MinecraftVersion *m_currentStable;