Mercurial > octave
view examples/unwinddemo.cc @ 18958:c9f960441513
Overhaul FLTK plotting and printing
* gl2ps-renderer.cc: Force execution of GL commands before gl2psEndPage to
avoid missing primitives in output. Enable error output of gl2ps,
check return value of gl2psBeginPage for error.
* __init_fltk__.cc:
Avoid redraw of the OpenGL and the plot window if not needed.
Let FLTK do the resizing of the canvas, the menubar and the statusbar.
This was done by creating a resize_dummy and set this as resizable
for the plot_window group. Previously this was done inside draw().
Avoid timing issues with fltk_maxtime (removed) and other hacks with
multiple Fl::check and redraw () calls. You can use flush and glFlush
if you really need to force a immediate redraw.
Remove print_mode in draw () and print directly without waiting that
FLTK flushes its buffers. This fixes bug #42458 and #40215
Manually placement of the toolbar is only done once when hiding or
showing the menubar. (update_toolbar_position)
set(gcf, "position", [x, y, w, h]) is now handled by
figure::properties::ID_POSITION which calls update_position
* __add_default_menu__.m: Remove now unneeded hacks for the menubar.
author | Andreas Weber <andy.weber.aw@gmail.com> |
---|---|
date | Sat, 26 Jul 2014 10:09:48 +0200 |
parents | be41c30bcb44 |
children |
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#include <octave/oct.h> #include <octave/unwind-prot.h> void my_err_handler (const char *fmt, ...) { // Do nothing!! } DEFUN_DLD (unwinddemo, args, nargout, "Unwind Demo") { octave_value retval; int nargin = args.length (); if (nargin < 2) print_usage (); else { NDArray a = args(0).array_value (); NDArray b = args(1).array_value (); if (! error_state) { // Declare unwind_protect frame which lasts as long as // the variable frame has scope. unwind_protect frame; frame.protect_var (current_liboctave_warning_handler); set_liboctave_warning_handler (my_err_handler); retval = octave_value (quotient (a, b)); } } return retval; }