From 58b8c3458b385e2f93fbe89bc84f99723177bc80 Mon Sep 17 00:00:00 2001
From: Stephen Anthony <sa666666@gmail.com>
Date: Mon, 3 Jun 2019 17:09:07 -0230
Subject: [PATCH] Fix UI drawing modes when overlaid on TIA image.

---
 src/emucore/FrameBuffer.cxx | 17 +++++++++++++++--
 src/gui/DialogContainer.cxx |  4 +---
 2 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/src/emucore/FrameBuffer.cxx b/src/emucore/FrameBuffer.cxx
index 8b9fba6ed..b8dedb202 100644
--- a/src/emucore/FrameBuffer.cxx
+++ b/src/emucore/FrameBuffer.cxx
@@ -341,6 +341,7 @@ void FrameBuffer::update(bool force)
       force |= myOSystem.menu().needsRedraw();
       if(force)
       {
+        clear();
         myTIASurface->render();
         myOSystem.menu().draw(force);
       }
@@ -352,6 +353,7 @@ void FrameBuffer::update(bool force)
       force |= myOSystem.commandMenu().needsRedraw();
       if(force)
       {
+        clear();
         myTIASurface->render();
         myOSystem.commandMenu().draw(force);
       }
@@ -363,6 +365,7 @@ void FrameBuffer::update(bool force)
       force |= myOSystem.timeMachine().needsRedraw();
       if(force)
       {
+        clear();
         myTIASurface->render();
         myOSystem.timeMachine().draw(force);
       }
@@ -371,7 +374,12 @@ void FrameBuffer::update(bool force)
 
     case EventHandlerState::LAUNCHER:
     {
-      force |= myOSystem.launcher().draw(force);
+      force |= myOSystem.launcher().needsRedraw();
+      if(force)
+      {
+        clear();
+        myOSystem.launcher().draw(force);
+      }
       break;  // EventHandlerState::LAUNCHER
     }
   #endif
@@ -379,7 +387,12 @@ void FrameBuffer::update(bool force)
   #ifdef DEBUGGER_SUPPORT
     case EventHandlerState::DEBUGGER:
     {
-      force |= myOSystem.debugger().draw(force);
+      force |= myOSystem.debugger().needsRedraw();
+      if(force)
+      {
+        clear();
+        myOSystem.debugger().draw(force);
+      }
       break;  // EventHandlerState::DEBUGGER
     }
   #endif
diff --git a/src/gui/DialogContainer.cxx b/src/gui/DialogContainer.cxx
index 6db3afafa..3e5666329 100644
--- a/src/gui/DialogContainer.cxx
+++ b/src/gui/DialogContainer.cxx
@@ -93,9 +93,7 @@ bool DialogContainer::draw(bool full)
     myDialogStack.top()->setDirty();
 
   // If the top dialog is dirty, then all below it must be redrawn too
-  bool dirty = needsRedraw();
-  if(dirty)
-    myOSystem.frameBuffer().clear();
+  const bool dirty = needsRedraw();
 
   myDialogStack.applyAll([&](Dialog*& d){
     if(dirty)