From a3a35f92bb41f02f5d37d3c6522308503ea4d73b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Gr=C3=A4=C3=9Flin?= <kde@martin-graesslin.com>
Date: Sat, 23 May 2009 12:40:04 +0000
Subject: [PATCH] Mirror the bottom cube cap in y direction. That makes cube a
 little bit more realistic.

svn path=/trunk/KDE/kdebase/workspace/; revision=971753
---
 effects/cube/cube.cpp | 54 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/effects/cube/cube.cpp b/effects/cube/cube.cpp
index f1d1437f95..2e1423bbc1 100644
--- a/effects/cube/cube.cpp
+++ b/effects/cube/cube.cpp
@@ -400,7 +400,21 @@ void CubeEffect::paintScreen( int mask, QRegion region, ScreenPaintData& data )
                 glRotatef( (1-frontDesktop)*360.0f / effects->numberOfDesktops(), 0.0, 1.0, 0.0 );
                 glTranslatef( 0.0, rect.height(), 0.0 );
                 glCullFace( GL_FRONT );
+
+                // bottom texture has to be mirrored
+                glMatrixMode( GL_TEXTURE );
+                glPushMatrix();
+                glLoadIdentity();
+                glScalef( 1.0f, -1.0f, 1.0f );
+                glTranslatef( 0.0f, -1.0f, 0.0f );
+                glMatrixMode( GL_MODELVIEW );
+
                 glCallList( glList + 2 );
+
+                glMatrixMode( GL_TEXTURE );
+                glPopMatrix();
+                glMatrixMode( GL_MODELVIEW );
+
                 glTranslatef( 0.0, -rect.height(), 0.0 );
                 glCullFace( GL_BACK );
                 glCallList( glList + 2 );
@@ -454,7 +468,20 @@ void CubeEffect::paintScreen( int mask, QRegion region, ScreenPaintData& data )
                 glRotatef( (1-frontDesktop)*360.0f / effects->numberOfDesktops(), 0.0, 1.0, 0.0 );
                 glTranslatef( 0.0, rect.height(), 0.0 );
                 glCullFace( GL_BACK );
+
+                // bottom texture has to be mirrored
+                glMatrixMode( GL_TEXTURE );
+                glPushMatrix();
+                glLoadIdentity();
+                glScalef( 1.0f, -1.0f, 1.0f );
+                glTranslatef( 0.0f, -1.0f, 0.0f );
+                glMatrixMode( GL_MODELVIEW );
                 glCallList( glList + 2 );
+
+                glMatrixMode( GL_TEXTURE );
+                glPopMatrix();
+                glMatrixMode( GL_MODELVIEW );
+
                 glTranslatef( 0.0, -rect.height(), 0.0 );
                 glCullFace( GL_FRONT );
                 glCallList( glList + 2 );
@@ -506,7 +533,20 @@ void CubeEffect::paintScreen( int mask, QRegion region, ScreenPaintData& data )
                 glPushMatrix();
                 glScalef( 1.0, -1.0, 1.0 );
                 }
+
+            // bottom texture has to be mirrored
+            glMatrixMode( GL_TEXTURE );
+            glPushMatrix();
+            glLoadIdentity();
+            glScalef( 1.0f, -1.0f, 1.0f );
+            glTranslatef( 0.0f, -1.0f, 0.0f );
+            glMatrixMode( GL_MODELVIEW );
+
             glCallList( glList + 2 );
+
+            glMatrixMode( GL_TEXTURE );
+            glPopMatrix();
+            glMatrixMode( GL_MODELVIEW );
             if( mode == Sphere )
                 glPopMatrix();
             glTranslatef( 0.0, -rect.height(), 0.0 );
@@ -581,7 +621,21 @@ void CubeEffect::paintScreen( int mask, QRegion region, ScreenPaintData& data )
                 glPushMatrix();
                 glScalef( 1.0, -1.0, 1.0 );
                 }
+
+            // bottom texture has to be mirrored
+            glMatrixMode( GL_TEXTURE );
+            glPushMatrix();
+            glLoadIdentity();
+            glScalef( 1.0f, -1.0f, 1.0f );
+            glTranslatef( 0.0f, -1.0f, 0.0f );
+            glMatrixMode( GL_MODELVIEW );
+
             glCallList( glList + 2 );
+
+            glMatrixMode( GL_TEXTURE );
+            glPopMatrix();
+            glMatrixMode( GL_MODELVIEW );
+
             if( mode == Sphere )
                 glPopMatrix();
             glTranslatef( 0.0, -rect.height(), 0.0 );