1 files changed, 0 insertions, 73 deletions
diff --git a/hacks/glx/gltrackball.h b/hacks/glx/gltrackball.h
deleted file mode 100644
index 048747c..0000000
--- a/hacks/glx/gltrackball.h
+++ /dev/null
@@ -1,73 +0,0 @@
-/* gltrackball, Copyright (c) 2002-2017 Jamie Zawinski <jwz@jwz.org>
- * GL-flavored wrapper for trackball.c
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation.  No representations are made about the suitability of this
- * software for any purpose.  It is provided "as is" without express or 
- * implied warranty.
- */
-
-#ifndef __GLTRACKBALL_H__
-#define __GLTRACKBALL_H__
-
-typedef struct trackball_state trackball_state;
-
-/* Returns a trackball_state object, which encapsulates the stuff necessary
-   to make dragging the mouse on the window of a GL program do the right thing.
- */
-extern trackball_state *gltrackball_init (int ignore_device_rotation_p);
-extern void gltrackball_free (trackball_state *);
-
-/* Begin tracking the mouse: Call this when the mouse button goes down.
-   x and y are the mouse position relative to the window.
-   w and h are the size of the window.
- */
-extern void gltrackball_start (trackball_state *, int x, int y, int w, int h);
-
-/* Track the mouse: Call this each time the mouse moves with the button down.
-   x and y are the new mouse position relative to the window.
-   w and h are the size of the window.
- */
-extern void gltrackball_track (trackball_state *, int x, int y, int w, int h);
-
-/* Stop tracking the mouse: Call this when the mouse button goes up.
- */
-extern void gltrackball_stop (trackball_state *);
-
-/* Execute the rotations current encapsulated in the trackball_state:
-   this does something analogous to glRotatef().
- */
-extern void gltrackball_rotate (trackball_state *);
-
-/* Call this when a mouse-wheel click is detected.
-   Clicks act like horizontal or vertical drags.
-   Percent is the length of the drag as a percentage of the screen size.
-   Button is 'Button4' or 'Button5' (for the vertical wheel)
-   or 'Button5' or 'Button6' (for the horizontal wheel).
-   If `flip_p' is true, swap the horizontal and vertical axes.
- */
-void gltrackball_mousewheel (trackball_state *ts,
-                             int button, int percent, int flip_p);
-
-/* Return the quaternion encapsulated by the trackball state.
- */
-extern void gltrackball_get_quaternion (trackball_state *ts, float q[4]);
-
-/* Reset the trackball to the default unrotated state,
-   plus an optional initial rotation.
- */
-extern void gltrackball_reset (trackball_state *ts, float x, float y);
-
-/* A utility function for event-handler functions:
-   Handles the various motion and click events related to trackballs.
-   Returns True if the event was handled.
- */
-extern Bool gltrackball_event_handler (XEvent *,
-                                       trackball_state *,
-                                       int window_width, int window_height,
-                                       Bool *button_down_p);
-
-#endif /* __GLTRACKBALL_H__ */