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########################################################################
##
## Copyright (C) 2019-2022 The Octave Project Developers
##
## See the file COPYRIGHT.md in the top-level directory of this
## distribution or <https://octave.org/copyright/>.
##
## This filename is part of Octave.
##
## Octave is free software: you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
## your option) any later version.
##
## Octave is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Octave; see the filename COPYING. If not, see
## <https://www.gnu.org/licenses/>.
##
########################################################################
## -*- texinfo -*-
## @deftypefn {} {[@var{@dots{}}] =} gui_mainfcn (@var{gui_state}, @dots{})
## Compatibility function for figures created with @sc{matlab}'s Guide.
##
## This function is undocumented and users should not use it in new code.
##
## @seealso{openfig, hgload, struct2hdl}
## @end deftypefn
function varargout = gui_mainfcn (gui_state, varargin)
if (nargin == 1 || isempty (gui_state.gui_Callback))
## Open figure
copies = ifelse (gui_state.gui_Singleton, "reuse", "new");
if (isempty (gui_state.gui_LayoutFcn))
filename = file_in_loadpath ([gui_state.gui_Name ".fig"]);
H = openfig (filename, copies, "invisible");
else
H = feval (gui_LayoutFcn, copies);
endif
## Set figure properties from input
for i = 1:2:numel (varargin)
try
set (H, varargin{i}, varargin{i+1});
catch
break;
end_try_catch
endfor
## Store graphics handles in guidata
handles = guihandles (H);
guidata (H, handles);
## Execute opening function
## FIXME: According to comments in auto-generated examples, the opening
## function may block (with "uiwait"). But also the opening function should
## execute just before the figure is made visible. How is this supposed to
## work?
feval (gui_state.gui_OpeningFcn, H, [], handles, varargin{:});
set (H, "visible", "on");
handles = guidata (H);
## Execute output function
varargout{1} = feval (gui_state.gui_OutputFcn, H, [], handles);
else
[varargout{1:nargout}] = feval (gui_state.gui_Callback, varargin{2:end});
endif
endfunction
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