From http://www.jwz.org/xscreensaver/xscreensaver-5.30.tar.gz

[xscreensaver] / hacks / glx / stonerview.c

diff --git a/hacks/glx/stonerview.c b/hacks/glx/stonerview.c
index 2aa5e129a5883cadaf3e8ebab0b5ae63065e6004..e504709d7b7e0dcff8dd9583b86a4b8f1f10e4b7 100644 (file)
--- a/hacks/glx/stonerview.c
+++ b/hacks/glx/stonerview.c
@@ -35,6 +35,8 @@
 #include "stonerview.h"
 #include "gltrackball.h"
 
+#define DEF_TRANSPARENT "True"
+
 typedef struct {
   GLXContext *glx_context;
   stonerview_state *st;
@@ -44,7 +46,19 @@ typedef struct {
 
 static stonerview_configuration *bps = NULL;
 
-ENTRYPOINT ModeSpecOpt stonerview_opts = {0, NULL, 0, NULL, NULL};
+static Bool transparent_p;
+
+
+static XrmOptionDescRec opts[] = {
+  { "-transparent",   ".transparent",   XrmoptionNoArg, "True" },
+  { "+transparent",   ".transparent",   XrmoptionNoArg, "False" },
+};
+
+static argtype vars[] = {
+  {&transparent_p, "transparent", "Transparent", DEF_TRANSPARENT, t_Bool},
+};
+
+ENTRYPOINT ModeSpecOpt stonerview_opts = {countof(opts), opts, countof(vars), vars, NULL};
 
 
 ENTRYPOINT void
@@ -74,19 +88,18 @@ init_stonerview (ModeInfo *mi)
       fprintf(stderr, "%s: out of memory\n", progname);
       exit(1);
     }
-
-    bp = &bps[MI_SCREEN(mi)];
   }
 
   bp = &bps[MI_SCREEN(mi)];
 
   bp->glx_context = init_GL(mi);
 
-  bp->trackball = gltrackball_init ();
-  bp->st = init_view(MI_IS_WIREFRAME(mi));
-  init_move(bp->st);
+  bp->trackball = gltrackball_init (False);
+  bp->st = stonerview_init_view(MI_IS_WIREFRAME(mi), transparent_p);
+  stonerview_init_move(bp->st);
 
   reshape_stonerview (mi, MI_WIDTH(mi), MI_HEIGHT(mi));
+  clear_gl_error(); /* WTF? sometimes "invalid op" from glViewport! */
 }
 
 
@@ -98,10 +111,12 @@ draw_stonerview (ModeInfo *mi)
   glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *(bp->glx_context));
 
   glPushMatrix ();
+  glRotatef( current_device_rotation(), 0, 0, 1);
   gltrackball_rotate (bp->trackball);
-  win_draw(bp->st);
+
+  stonerview_win_draw(bp->st);
   if (! bp->button_down_p)
-    move_increment(bp->st);
+    stonerview_move_increment(bp->st);
   glPopMatrix ();
 
   mi->polygon_count = NUM_ELS;
@@ -119,7 +134,7 @@ release_stonerview (ModeInfo *mi)
     for (screen = 0; screen < MI_NUM_SCREENS(mi); screen++) {
       stonerview_configuration *bp = &bps[screen];
       if (bp->st)
-        win_release (bp->st);
+        stonerview_win_release (bp->st);
     }
     free (bps);
     bps = 0;
@@ -132,37 +147,10 @@ stonerview_handle_event (ModeInfo *mi, XEvent *event)
 {
   stonerview_configuration *bp = &bps[MI_SCREEN(mi)];
 
-  if (event->xany.type == ButtonPress &&
-      event->xbutton.button == Button1)
-    {
-      bp->button_down_p = True;
-      gltrackball_start (bp->trackball,
-                         event->xbutton.x, event->xbutton.y,
-                         MI_WIDTH (mi), MI_HEIGHT (mi));
-      return True;
-    }
-  else if (event->xany.type == ButtonRelease &&
-           event->xbutton.button == Button1)
-    {
-      bp->button_down_p = False;
-      return True;
-    }
-  else if (event->xany.type == ButtonPress &&
-           (event->xbutton.button == Button4 ||
-            event->xbutton.button == Button5))
-    {
-      gltrackball_mousewheel (bp->trackball, event->xbutton.button, 10,
-                              !!event->xbutton.state);
-      return True;
-    }
-  else if (event->xany.type == MotionNotify &&
-           bp->button_down_p)
-    {
-      gltrackball_track (bp->trackball,
-                         event->xmotion.x, event->xmotion.y,
-                         MI_WIDTH (mi), MI_HEIGHT (mi));
-      return True;
-    }
+  if (gltrackball_event_handler (event, bp->trackball,
+                                 MI_WIDTH (mi), MI_HEIGHT (mi),
+                                 &bp->button_down_p))
+    return True;
 
   return False;
 }