function handles = update_gui(handles)
% Updates the look of the GUI
%
% Author(s): Jonathan Moeyersons (Jonathan.Moeyersons@esat.kuleuven.be)
% Sabine Van Huffel (Sabine.Vanhuffel@esat.kuleuven.be)
% Carolina Varon (Carolina.Varon@esat.kuleuven.be)
%
% Version History:
% - 06/05/2019 JM Initial version
%
% Copyright (c) 2019, Jonathan Moeyersons, KULeuven-ESAT-STADIUS
%
% This software is made available for non commercial research purposes only
% under the GNU General Public License. However, notwithstanding any
% provision of the GNU General Public License, this software may not be
% used for commercial purposes without explicit written permission after
% contacting jonathan.moeyersons@esat.kuleuven.be
%
% This program 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.
%
% This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
%% Set menu settings
if ~isempty(handles.data.signal.original)
set(handles.menu_save_session,'enable','on')
end
if ~isempty(handles.data.R)
set(handles.menu_save_results,'enable','on')
set(handles.menu_export_results,'enable','on')
set(handles.menu_to_excel,'enable','on')
set(handles.menu_to_workspace,'enable','on')
% Enable the add context menu
set(handles.context_add,'enable','on')
end
%% Set data panel
set(handles.text_filepath,'string',handles.data.filepath)
set(handles.text_variable,'string',handles.data.variable)
set(handles.text_sampling_frequency,'string',handles.data.fs)
set(handles.text_signal_duration,'string',char(handles.data.duration_recording))
set(handles.text_channels,'string',handles.data.channels)
set(handles.pushbutton_reset,'enable','on')
%% Set filter panel
set(findall(handles.uipanel_filter,'style','text'),'enable','on')
set(handles.edit_high_pass,'enable','on')
set(handles.edit_low_pass,'enable','on')
set(handles.edit_stop,'enable','on')
set(handles.pushbutton_check_psd,'enable','on')
set(handles.pushbutton_filter,'enable','on')
if ~isempty(handles.data.hp) || ~isempty(handles.data.lp) || ~isempty(handles.data.stop)
set(handles.pushbutton_remove_filter,'enable','on')
set(handles.checkbox_show_original,'enable','on')
end
%% Set analysis period panel
set(handles.edit_start,'string',char(handles.data.start_analysis));
set(handles.edit_duration,'string',char(handles.data.duration_analysis));
set(handles.togglebutton_analysis_period,'enable','on')
%% Set R-peak detection panel
set(handles.pushbutton_detect_peaks,'enable','on')
set(handles.pushbutton_load_peaks,'enable','on')
%% Set R-peak correction panel
if ~isempty(handles.data.R)
set(findall(handles.uipanel_R_peak_correction,'-property','enable'),'enable','on')
end
%% Set range
set(handles.edit_range,'string',char(handles.data.range),...
'enable','on')
set(handles.pushbutton_plus,'enable','on')
set(handles.pushbutton_minus,'enable','on')
set(handles.text_range,'enable','on')
%% Set slider
if handles.data.range == handles.data.duration_analysis
% Adjust the slider
set(handles.slider_range,'enable','off',...
'max',round(handles.data.fs*seconds(handles.data.range)),...
'value',0)
else
% Get a new maximum for the slider
new_max = round(handles.data.fs*seconds(handles.data.duration_analysis-handles.data.range));
% Adjust the value if it is outside the new range
if handles.slider_range.Value > new_max
set(handles.slider_range,'Value',new_max)
end
% Get the new step size
n = round(handles.data.fs*seconds(handles.data.range))/new_max;
% Adjust the slider
set(handles.slider_range,'max',new_max,...
'sliderstep',[min([1 n]) min([1 2*n])],...
'enable','on')
end
% Get the slider value
slider_value = get(handles.slider_range,'Value');
% Adjust the x-limits
stop = min([handles.data.start_analysis+seconds(slider_value/handles.data.fs)+handles.data.range handles.data.start_analysis+handles.data.duration_analysis]);
if stop == handles.data.start_analysis+handles.data.duration_analysis
if strcmp(handles.slider_range.Enable,'on')
start = stop-range;
else
start = handles.data.start_analysis;
end
else
start = handles.data.start_analysis+seconds(slider_value/handles.data.fs);
end
% Adjust the x-limits
xlim(handles.axes_ECG,[start stop])
xlim(handles.axes_tachogram,[start stop])
%% Set channel listbox
str = cell(1,handles.data.channels+1);
str{1} = 'All';
for ii = 1:handles.data.channels
color = handles.color(ii,:);
colorStr = sprintf('%d,',int16(255*color));
str{ii+1} = ['<HTML><FONT color="rgb(' colorStr ')">Channel_' num2str(ii) '</Font></html>'];
end
set(handles.listbox_channels,'string',str,...
'value',1,...
'enable','on')
%% Set the tachogram units
set(handles.popupmenu_units_tachogram,'enable','on')
%% Set the y-limits checkbox
set(handles.checkbox_fix_ylimits,'enable','on')
%% Set the axes
% Get the entire time
time = seconds((1:size(handles.data.signal.filtered,1))/handles.data.fs);
time.Format = 'hh:mm:ss';
% Get the start and stop of the analysis window
start = max([1 round(handles.data.fs*seconds(handles.data.start_analysis))]);
stop = start + min([length(handles.data.signal.filtered) round(handles.data.fs*seconds(handles.data.duration_analysis))])-1;
for ii = 1:handles.data.channels
% Loaded signal
handles.graph.signal.original.(handles.labels{ii}) = plot(handles.axes_ECG,time(start:stop),handles.data.signal.original(start:stop,ii),...
'color',[handles.color(ii,:),0.2],...
'visible','off');
% Filtered signal
handles.graph.signal.filtered.(handles.labels{ii}) = plot(handles.axes_ECG,time(start:stop),handles.data.signal.filtered(start:stop,ii),...
'color',handles.color(ii,:),...
'tag',handles.labels{ii},...
'UIContextMenu', handles.context_lead_options);
if ~isempty(handles.data.R)
% Check if the input is in duration values. Adjust if necessary
if ~isduration(handles.data.R{ii})
handles.data.R{ii} = seconds(handles.data.R{ii})/handles.data.fs;
end
% Define R-peaks
R_peak = handles.data.R{ii};
% Define the RR-intervals
RR_int = seconds(diff(R_peak))*1000;
% R-peaks
handles.graph.R.(handles.labels{ii}) = plot(handles.axes_ECG,...
R_peak,...
handles.data.signal.filtered(round(seconds(R_peak)*handles.data.fs),ii),...
'o',...
'color',handles.color(ii,:),...
'tag',handles.labels{ii},...
'markerfacecolor',handles.color(ii,:),...
'UIContextMenu', handles.context_R_peak_options);
% Tachogram
handles.graph.RR.(handles.labels{ii}) = plot(handles.axes_tachogram,...
R_peak(2:end),...
RR_int,...
'-o',...
'color',handles.color(ii,:),...
'markerfacecolor',handles.color(ii,:),...
'tag',handles.labels{ii});
end
end