From 8cfdea7ce327143a8f7bf7da8df536511c9287ca Mon Sep 17 00:00:00 2001
From: Thomas Debesse <dev@illwieckz.net>
Date: Sat, 15 Jul 2017 14:08:24 +0200
Subject: [PATCH] refresh DPK VFS before refreshing textures

DPK VFS allows to add and remove pak dependencies.

Reloading VFS before refreshing textures ensures
added or removed dependencies are handled without
reloading the whole map.

It allows the user to edit the DEPS file while radiant
is running, he just has to reload the VFS asking for
texture refresh.
---
 include/ifilesystem.h  |  4 ++++
 plugins/vfspk3/vfs.cpp | 19 +++++++++++++++++--
 radiant/mainframe.cpp  |  7 +++++++
 radiant/mainframe.h    |  1 +
 radiant/texwindow.cpp  |  1 +
 5 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/include/ifilesystem.h b/include/ifilesystem.h
index 6bbc0db2..70b5da92 100644
--- a/include/ifilesystem.h
+++ b/include/ifilesystem.h
@@ -50,6 +50,10 @@ virtual void initDirectory( const char *path ) = 0;
 /// \brief Initialises the filesystem.
 /// Called after all root search paths have been added.
 virtual void initialise() = 0;
+/// \brief Clear the filesystem if supported
+virtual void clear() = 0;
+/// \brief Reload the filesystem if supported
+virtual void refresh() = 0;
 /// \brief Shuts down the filesystem.
 virtual void shutdown() = 0;
 
diff --git a/plugins/vfspk3/vfs.cpp b/plugins/vfspk3/vfs.cpp
index a76fafba..bee7403b 100644
--- a/plugins/vfspk3/vfs.cpp
+++ b/plugins/vfspk3/vfs.cpp
@@ -848,6 +848,12 @@ void initDirectory( const char *path ){
 	InitDirectory( path, FileSystemQ3API_getArchiveModules() );
 }
 void initialise(){
+	load();
+	globalOutputStream() << "filesystem initialised\n";
+	g_observers.realise();
+}
+
+void load(){
 	ArchiveModules& archiveModules = FileSystemQ3API_getArchiveModules();
 	bool is_dpk_vfs = GetArchiveTable( archiveModules, "dpk" );
 
@@ -873,10 +879,19 @@ void initialise(){
 		g_pakfile_paths.clear();
 		g_loaded_dpk_paks.clear();
 	}
+}
 
-	globalOutputStream() << "filesystem initialised\n";
-	g_observers.realise();
+void clear() {
+	// like shutdown() but does not unrealise (keep map etc.)
+	Shutdown();
 }
+
+void refresh(){
+	// like initialise() but does not realise (keep map etc.)
+	load();
+	globalOutputStream() << "filesystem refreshed\n";
+}
+
 void shutdown(){
 	g_observers.unrealise();
 	globalOutputStream() << "filesystem shutdown\n";
diff --git a/radiant/mainframe.cpp b/radiant/mainframe.cpp
index 8abd6e2a..7a9e141e 100644
--- a/radiant/mainframe.cpp
+++ b/radiant/mainframe.cpp
@@ -160,6 +160,13 @@ void VFS_Shutdown(){
 	GlobalFileSystem().shutdown();
 	g_vfsInitialized = false;
 }
+void VFS_Refresh(){
+	if ( !g_vfsInitialized ) return;
+	GlobalFileSystem().clear();
+	QE_InitVFS();
+	GlobalFileSystem().refresh();
+	g_vfsInitialized = true;
+}
 void VFS_Restart(){
 	VFS_Shutdown();
 	VFS_Init();
diff --git a/radiant/mainframe.h b/radiant/mainframe.h
index c2738450..c450fd54 100644
--- a/radiant/mainframe.h
+++ b/radiant/mainframe.h
@@ -245,6 +245,7 @@ void gamemode_set( const char* gamemode );
 void Radiant_attachGameModeObserver( ModuleObserver& observer );
 void Radiant_detachGameModeObserver( ModuleObserver& observer );
 
+void VFS_Refresh();
 void VFS_Restart();
 void VFS_Construct();
 void VFS_Destroy();
diff --git a/radiant/texwindow.cpp b/radiant/texwindow.cpp
index e9ec10f9..e30f1035 100644
--- a/radiant/texwindow.cpp
+++ b/radiant/texwindow.cpp
@@ -2361,6 +2361,7 @@ void TextureBrowser_pasteTag(){
 
 void RefreshShaders(){
 	ScopeDisableScreenUpdates disableScreenUpdates( "Processing...", "Loading Shaders" );
+	VFS_Refresh();
 	GlobalShaderSystem().refresh();
 	UpdateAllWindows();
 	GtkTreeSelection* selection = gtk_tree_view_get_selection((GtkTreeView*)GlobalTextureBrowser().m_treeViewTree);
-- 
2.39.2