+2008-11-28 Seiji Zenitani <zenitani@mac.com>
+
+ * frame.c (x_set_alpha) [NS_IMPL_COCOA]: Call x_set_frame_alpha.
+
+ * nsfns.m (ns_frame_parm_handlers): Set alpha handler.
+
+ * nsterm.m (x_set_frame_alpha): New function.
+
2008-11-27 Eli Zaretskii <eliz@gnu.org>
* xfaces.c (Fx_font_family_list, syms_of_xfaces): Fix last change.
dpyinfo->x_highlight_frame != old_highlight)
{
if (old_highlight)
+ {
x_update_cursor (old_highlight, 1);
+ x_set_frame_alpha (old_highlight);
+ }
if (dpyinfo->x_highlight_frame)
+ {
x_update_cursor (dpyinfo->x_highlight_frame, 1);
+ x_set_frame_alpha (dpyinfo->x_highlight_frame);
+ }
}
}
}
+void
+x_set_frame_alpha (struct frame *f)
+/* --------------------------------------------------------------------------
+ change the entire-frame transparency
+ -------------------------------------------------------------------------- */
+{
+ struct ns_display_info *dpyinfo = FRAME_NS_DISPLAY_INFO (f);
+ EmacsView *view = FRAME_NS_VIEW (f);
+ double alpha = 1.0;
+ double alpha_min = 1.0;
+
+ if (dpyinfo->x_highlight_frame == f)
+ alpha = f->alpha[0];
+ else
+ alpha = f->alpha[1];
+
+ if (FLOATP (Vframe_alpha_lower_limit))
+ alpha_min = XFLOAT_DATA (Vframe_alpha_lower_limit);
+ else if (INTEGERP (Vframe_alpha_lower_limit))
+ alpha_min = (XINT (Vframe_alpha_lower_limit)) / 100.0;
+
+ if (alpha < 0.0)
+ return;
+ else if (1.0 < alpha)
+ alpha = 1.0;
+ else if (0.0 <= alpha && alpha < alpha_min && alpha_min <= 1.0)
+ alpha = alpha_min;
+
+#ifdef NS_IMPL_COCOA
+ [[view window] setAlphaValue: alpha];
+#endif
+}
+
/* ==========================================================================
/* FIXME: for some reason needed on second and subsequent clicks away
from sole-frame Emacs to get hollow box to show */
if (!windowClosing && [[self window] isVisible] == YES)
- x_update_cursor (emacsframe, 1);
+ {
+ x_update_cursor (emacsframe, 1);
+ x_set_frame_alpha (emacsframe);
+ }
if (emacs_event)
{