Mercurial > hg > octave-nkf
diff src/graphics.cc @ 13324:1e12601d2697
make handles with their handlevisibility property set to "callback" visible in callback functions
* graphics.cc (executing_callback): New file scope variable.
(callback_property::execute): Protect executing_callback and set it to
true when executing callback function.
* graphics.cc (base_properties::is_handle_visible): Move here from
graphics.h.in. Check executing_callback to decide whether handles
that have their handlevisibility property set to "callback" should be
visible.
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Tue, 11 Oct 2011 22:02:39 -0400 |
| parents | de081abd32c6 |
| children | f81fcceb394c |
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--- a/src/graphics.cc +++ b/src/graphics.cc @@ -1387,6 +1387,11 @@ return false; } +// If TRUE, we are executing any callback function, or the functions it +// calls. Used to determine handle visibility inside callback +// functions. +static bool executing_callback = false; + void callback_property::execute (const octave_value& data) const { @@ -1397,9 +1402,14 @@ // callback routines. frame.protect_var (executing); + // We are executing a callback function, so allow handles that have + // their handlevisibility property set to "callback" to be visible. + frame.protect_var (executing_callback); + if (! executing) { executing = true; + executing_callback = true; if (callback.is_defined () && ! callback.is_empty ()) gh_manager::execute_callback (get_parent (), callback, data); @@ -2448,6 +2458,13 @@ obj.update_axis_limits (axis_type, h); } +bool +base_properties::is_handle_visible (void) const +{ + return (handlevisibility.is ("on") + || executing_callback && ! handlevisibility.is ("off")); +} + graphics_toolkit base_properties::get_toolkit (void) const {