From 5a86af6aac0eebb3153e4f8bf2cc2cf85709d5bc Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop+hg@gmail.com>
Date: Tue, 30 Nov 2010 15:23:17 -0500
Subject: [PATCH] Spin mode: every other monitor spins in other direction

---
 modes/Spin.cc | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/modes/Spin.cc b/modes/Spin.cc
index 8783289..07d3377 100644
--- a/modes/Spin.cc
+++ b/modes/Spin.cc
@@ -10,13 +10,14 @@ bool Spin::expose (GnomeScreensaver & gs)
     int width = gs.getWidth() / n_monitors;
     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
-    for (int i = 0; i < n_monitors; i++)
+    for (int monitor_num = 0; monitor_num < n_monitors; monitor_num++)
     {
-        glViewport(width * i, 0, width, gs.getHeight());
+        glViewport(width * monitor_num, 0, width, gs.getHeight());
 
         glPushMatrix();
 
-        glRotatef(gs.getTicks() / 1000.0 * 360.0 / 4.0, 0, 1, 0);
+        glRotatef(gs.getTicks() / 1000.0 * 360.0 / 4.0
+                * (monitor_num & 0x1 ? -1.0 : 1.0), 0, 1, 0);
         m_logobox.draw();
 
         glPopMatrix();