From 0bd5611092973c257157a87b58f7d099957fe02d Mon Sep 17 00:00:00 2001
From: Jonathan Moore Liles <j.liles@unix.net>
Date: Thu, 7 Jan 2010 23:26:10 -0600
Subject: [PATCH] Make optimized drawing of timeline canvas a compile-time
 option.

---
 Makefile            | 5 +++++
 Timeline/Timeline.C | 4 ++++
 configure           | 2 ++
 3 files changed, 11 insertions(+)

diff --git a/Makefile b/Makefile
index f1fc371..ab473ff 100644
--- a/Makefile
+++ b/Makefile
@@ -52,6 +52,11 @@ else
 	CXXFLAGS := -fno-rtti -fno-exceptions
 endif
 
+
+ifeq ($(USE_UNOPTIMIZED_DRAWING),yes)
+	CFLAGS+=-DUSE_UNOPTIMIZED_DRAWING
+endif
+
 CFLAGS+=-DVERSION=\"$(VERSION)\" \
 	-DINSTALL_PREFIX=\"$(prefix)\" \
 	-DSYSTEM_PATH=\"$(SYSTEM_PATH)\" \
diff --git a/Timeline/Timeline.C b/Timeline/Timeline.C
index 12cfbb4..3097578 100644
--- a/Timeline/Timeline.C
+++ b/Timeline/Timeline.C
@@ -896,7 +896,11 @@ Timeline::draw ( void )
 
     adjust_vscroll();
 
+#ifndef USE_UNOPTIMIZED_DRAWING
     if ( ( damage() & FL_DAMAGE_ALL ) || ( damage() & FL_DAMAGE_EXPOSE ) )
+#else
+    #warning Optimized drawing of timeline disabled. This will waste your CPU.
+#endif
     {
         DMESSAGE( "complete redraw" );
 
diff --git a/configure b/configure
index 58a6e23..034befb 100755
--- a/configure
+++ b/configure
@@ -13,6 +13,8 @@ ask "Installation prefix" prefix /usr/local
 ask "Use the LASH Audio Session Handler" USE_LASH yes
 ask "Build for debugging" USE_DEBUG no
 
+using DEBUG && ask "Use unoptimized drawing routines" USE_UNOPTIMIZED_DRAWING no
+
 begin_tests
 
 require_FLTK 1.1.7 images