Version revert logic improvements, colorful icons for mod lists and resource pack list.

Icons are from Oxygen.

gui/pages/LegacyJarModPage.cpp

@@ -56,7 +56,7 @@ QString LegacyJarModPage::displayName()
 
 QIcon LegacyJarModPage::icon()
 {
-	return QIcon::fromTheme("settings");
+	return QIcon::fromTheme("plugin-red");
 }
 
 QString LegacyJarModPage::id()

gui/pages/LegacyUpgradePage.cpp

@@ -8,7 +8,7 @@ QString LegacyUpgradePage::displayName()
 
 QIcon LegacyUpgradePage::icon()
 {
-	return QIcon::fromTheme("bug");
+	return QIcon::fromTheme("checkupdate");
 }
 
 QString LegacyUpgradePage::id()

gui/pages/ResourcePackPage.h

@@ -0,0 +1,23 @@
+#pragma once
+#include "ModFolderPage.h"
+
+class ResourcePackPage : public ModFolderPage
+{
+public:
+	explicit ResourcePackPage(BaseInstance *instance, QWidget *parent = 0)
+		: ModFolderPage(instance->texturePackList(), "resourcepacks", "resourcepacks",
+						tr("Resource packs"), parent)
+	{
+		m_inst = instance;
+	}
+
+	virtual ~ResourcePackPage() {};
+	virtual bool shouldDisplay() override
+	{
+		return !m_inst->traits().contains("no-texturepacks") &&
+			   !m_inst->traits().contains("texturepacks");
+	}
+
+private:
+	BaseInstance *m_inst;
+};

gui/pages/TexturePackPage.h

@@ -0,0 +1,20 @@
+#pragma once
+#include "ModFolderPage.h"
+
+class TexturePackPage : public ModFolderPage
+{
+public:
+	explicit TexturePackPage(BaseInstance *instance, QWidget *parent = 0)
+		: ModFolderPage(instance->texturePackList(), "texturepacks", "resourcepacks",
+						tr("Texture packs"), parent)
+	{
+		m_inst = instance;
+	}
+	virtual ~TexturePackPage() {};
+	virtual bool shouldDisplay() override
+	{
+		return m_inst->traits().contains("texturepacks");
+	}
+private:
+	BaseInstance *m_inst;
+};

gui/pages/VersionPage.cpp

@@ -44,6 +44,7 @@
 
 #include <QAbstractItemModel>
 #include <logic/Mod.h>
+#include <logic/icons/IconList.h>
 
 #include <QMessageBox>
 #include <QListView>
@@ -57,7 +58,7 @@ QString VersionPage::displayName()
 
 QIcon VersionPage::icon()
 {
-	return QIcon::fromTheme("settings");
+	return MMC->icons()->getIcon(m_inst->iconKey());
 }
 
 QString VersionPage::id()
@@ -157,7 +158,7 @@ void VersionPage::on_jarmodBtn_clicked()
 	auto f = [&](QStandardPaths::StandardLocation l)
 	{
 		QString location = QStandardPaths::writableLocation(l);
-		if(!QFileInfo::exists(location))
+		if (!QFileInfo::exists(location))
 			return;
 		locations.insert(location);
 	};
@@ -166,7 +167,7 @@ void VersionPage::on_jarmodBtn_clicked()
 	f(QStandardPaths::DownloadLocation);
 	f(QStandardPaths::HomeLocation);
 	QList<QUrl> urls;
-	for(auto location: locations)
+	for (auto location : locations)
 	{
 		urls.append(QUrl::fromLocalFile(location));
 	}
@@ -178,7 +179,8 @@ void VersionPage::on_jarmodBtn_clicked()
 	w.setDirectory(modsFolder);
 	w.setSidebarUrls(urls);
 
-	if(w.exec());
+	if (w.exec())
+		;
 	m_version->installJarMods(w.selectedFiles());
 }
 
@@ -292,15 +294,16 @@ void VersionPage::on_forgeBtn_clicked()
 		m_version->removeFtbPack();
 		reloadInstanceVersion();
 	}
-	if (m_version->usesLegacyCustomJson())
+	if (m_version->hasDeprecatedVersionFiles())
 	{
 		if (QMessageBox::question(this, tr("Revert?"),
-								  tr("This action will remove your custom.json. Continue?")) !=
+								  tr("This action will remove deprecated version files "
+									 "(custom.json and version.json). Continue?")) !=
 			QMessageBox::Yes)
 		{
 			return;
 		}
-		m_version->revertToVanilla();
+		m_version->removeDeprecatedVersionFiles();
 		reloadInstanceVersion();
 	}
 	VersionSelectDialog vselect(MMC->forgelist().get(), tr("Select Forge version"), this);
@@ -329,15 +332,16 @@ void VersionPage::on_liteloaderBtn_clicked()
 		m_version->removeFtbPack();
 		reloadInstanceVersion();
 	}
-	if (m_version->usesLegacyCustomJson())
+	if (m_version->hasDeprecatedVersionFiles())
 	{
 		if (QMessageBox::question(this, tr("Revert?"),
-								  tr("This action will remove your custom.json. Continue?")) !=
+								  tr("This action will remove deprecated version files "
+									 "(custom.json and version.json). Continue?")) !=
 			QMessageBox::Yes)
 		{
 			return;
 		}
-		m_version->revertToVanilla();
+		m_version->removeDeprecatedVersionFiles();
 		reloadInstanceVersion();
 	}
 	VersionSelectDialog vselect(MMC->liteloaderlist().get(), tr("Select LiteLoader version"),
@@ -369,7 +373,7 @@ void VersionPage::versionCurrent(const QModelIndex &current, const QModelIndex &
 		ui->moveLibraryUpBtn->setEnabled(enabled);
 	}
 	QString selectedId = m_version->versionFileId(current.row());
-	if(selectedId == "net.minecraft" || selectedId == "org.multimc.custom.json")
+	if (selectedId == "net.minecraft" || selectedId == "org.multimc.custom.json")
 	{
 		ui->changeMCVersionBtn->setEnabled(true);
 	}

logic/LegacyInstance.cpp

@@ -49,8 +49,8 @@ QList<BasePage *> LegacyInstance::getPages()
 	QList<BasePage *> values;
 	values.append(new LegacyUpgradePage(this));
 	values.append(new LegacyJarModPage(this));
-	values.append(new ModFolderPage(loaderModList(), "mods", "centralmods", tr("Loader Mods")));
-	values.append(new ModFolderPage(coreModList(), "coremods", "viewfolder", tr("Core Mods")));
+	values.append(new ModFolderPage(loaderModList(), "mods", "plugin-blue", tr("Loader Mods")));
+	values.append(new ModFolderPage(coreModList(), "coremods", "plugin-green", tr("Core Mods")));
 	values.append(new TexturePackPage(this));
 	return values;
 }

logic/OneSixInstance.cpp

@@ -60,8 +60,8 @@ QList<BasePage *> OneSixInstance::getPages()
 {
 	QList<BasePage *> values;
 	values.append(new VersionPage(this));
-	values.append(new ModFolderPage(loaderModList(), "mods", "centralmods", tr("Loader Mods")));
-	values.append(new ModFolderPage(coreModList(), "coremods", "viewfolder", tr("Core Mods")));
+	values.append(new ModFolderPage(loaderModList(), "mods", "plugin-blue", tr("Loader Mods")));
+	values.append(new ModFolderPage(coreModList(), "coremods", "plugin-green", tr("Core Mods")));
 	values.append(new ResourcePackPage(this));
 	values.append(new TexturePackPage(this));
 	return values;

logic/minecraft/InstanceVersion.cpp

@@ -161,12 +161,35 @@ bool InstanceVersion::isVanilla()
 		return false;
 	if(QFile::exists(PathCombine(m_instance->instanceRoot(), "custom.json")))
 		return false;
+	if(QFile::exists(PathCombine(m_instance->instanceRoot(), "version.json")))
+		return false;
 	return true;
 }
 
 bool InstanceVersion::revertToVanilla()
 {
 	beginResetModel();
+	// remove custom.json, if present
+	QString customPath = PathCombine(m_instance->instanceRoot(), "custom.json");
+	if(QFile::exists(customPath))
+	{
+		if(!QFile::remove(customPath))
+		{
+			endResetModel();
+			return false;
+		}
+	}
+	// remove version.json, if present
+	QString versionPath = PathCombine(m_instance->instanceRoot(), "version.json");
+	if(QFile::exists(versionPath))
+	{
+		if(!QFile::remove(versionPath))
+		{
+			endResetModel();
+			return false;
+		}
+	}
+	// remove patches, if present
 	auto it = VersionPatches.begin();
 	while (it != VersionPatches.end())
 	{
@@ -195,9 +218,40 @@ bool InstanceVersion::revertToVanilla()
 	return true;
 }
 
-bool InstanceVersion::usesLegacyCustomJson()
+bool InstanceVersion::hasDeprecatedVersionFiles()
 {
-	return QFile::exists(PathCombine(m_instance->instanceRoot(), "custom.json"));
+	if(QFile::exists(PathCombine(m_instance->instanceRoot(), "custom.json")))
+		return true;
+	if(QFile::exists(PathCombine(m_instance->instanceRoot(), "version.json")))
+		return true;
+	return false;
+}
+
+bool InstanceVersion::removeDeprecatedVersionFiles()
+{
+	beginResetModel();
+	// remove custom.json, if present
+	QString customPath = PathCombine(m_instance->instanceRoot(), "custom.json");
+	if(QFile::exists(customPath))
+	{
+		if(!QFile::remove(customPath))
+		{
+			endResetModel();
+			return false;
+		}
+	}
+	// remove version.json, if present
+	QString versionPath = PathCombine(m_instance->instanceRoot(), "version.json");
+	if(QFile::exists(versionPath))
+	{
+		if(!QFile::remove(versionPath))
+		{
+			endResetModel();
+			return false;
+		}
+	}
+	endResetModel();
+	return true;
 }
 
 QList<std::shared_ptr<OneSixLibrary> > InstanceVersion::getActiveNormalLibs()

logic/minecraft/InstanceVersion.h

@@ -51,6 +51,11 @@ public:
 	// remove any customizations on top of vanilla
 	bool revertToVanilla();
 	
+	// does this version consist of obsolete files?
+	bool hasDeprecatedVersionFiles();
+	// remove obsolete files
+	bool removeDeprecatedVersionFiles();
+	
 	// does this version have an FTB pack patch file?
 	bool hasFtbPack();
 	// remove FTB pack
@@ -61,9 +66,6 @@ public:
 	void installJarMods(QStringList selectedFiles);
 	void installJarModByFilename(QString filepath);
 
-	// does this version still use a legacy custom.json file?
-	bool usesLegacyCustomJson();
-
 	enum MoveDirection { MoveUp, MoveDown };
 	void move(const int index, const MoveDirection direction);
 	void resetOrder();

resources/multimc/multimc.qrc

@@ -103,6 +103,30 @@
 		<file>48x48/status-good.png</file>
 		<file>64x64/status-good.png</file>
 		
+		<!-- Plugin (blue recolor), CC-BY-SA 3.0, Oxygen icons. -->
+		<file>16x16/plugin-blue.png</file>
+		<file>24x24/plugin-blue.png</file>
+		<file>32x32/plugin-blue.png</file>
+		<file>64x64/plugin-blue.png</file>
+		
+		<!-- Plugin (red recolor), CC-BY-SA 3.0, Oxygen icons. -->
+		<file>16x16/plugin-red.png</file>
+		<file>24x24/plugin-red.png</file>
+		<file>32x32/plugin-red.png</file>
+		<file>64x64/plugin-red.png</file>
+
+		<!-- Plugin (green original), CC-BY-SA 3.0, Oxygen icons. -->
+		<file>16x16/plugin-green.png</file>
+		<file>24x24/plugin-green.png</file>
+		<file>32x32/plugin-green.png</file>
+		<file>64x64/plugin-green.png</file>
+
+		<!-- Resource packs, CC-BY-SA 3.0, Oxygen icons. -->
+		<file>16x16/resourcepacks.png</file>
+		<file>24x24/resourcepacks.png</file>
+		<file>32x32/resourcepacks.png</file>
+		<file>64x64/resourcepacks.png</file>
+
 		<!-- Refresh, CC-BY-SA 3.0, Oxygen icons. -->
 		<file>16x16/refresh.png</file>
 		<file>22x22/refresh.png</file>