added Spin mode -- in progress

modes/Spin.cc

@@ -0,0 +1,37 @@
+
+#include <GL/gl.h>
+#include <GL/glu.h>
+
+#include "Spin.h"
+
+bool Spin::expose (GnomeScreensaver & gs)
+{
+    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+    glPushMatrix();
+    glRotatef(gs.getTicks() / 1000.0 * 360.0 / 4.0, 0, 1, 0);
+    m_logobox.draw();
+    glPopMatrix();
+
+    return true;
+}
+
+bool Spin::configure (GnomeScreensaver & gs, int width, int height)
+{
+    glViewport(0, 0, width, height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    gluPerspective(60.0, (double)width/(double)height, 0.01, 1000.0);
+
+    glMatrixMode(GL_MODELVIEW);
+    glLoadIdentity();
+    gluLookAt(0, 0, 0, 0, 0, 4, 0, 1, 0);
+
+    return true;
+}
+
+bool Spin::update (GnomeScreensaver & gs)
+{
+    return true;
+}
+

modes/Spin.h

@@ -0,0 +1,21 @@
+
+#ifndef SPIN_H
+#define SPIN_H
+
+#include "LogoBox.h"
+#include "Mode.h"
+#include "GnomeScreensaver.h"
+
+class Spin : public Mode
+{
+    public:
+        bool expose (GnomeScreensaver & gs);
+        bool configure (GnomeScreensaver & gs, int width,
+                int height);
+        bool update (GnomeScreensaver & gs);
+    protected:
+        LogoBox m_logobox;
+};
+
+#endif /* SPIN_H */
+