showscan

function showscan
% SHOWSCAN Called by specr to show the current scan data.

hFigSpecr = findall(0,'Tag','specr_Fig');
settings = getappdata(hFigSpecr,'settings');

% --- open GUI to display the selected scans
h = findall(0,'Tag','figSpecrShowScan');
if ~isempty(h)
    figure(h);
else
    p0      = get(hFigSpecr,'position');    % main figure position
    p1(3)   = 500;              % p1 is the setting figure position
    p1(4)   = 400;
    p1(1)   = p0(1)+p0(3)/2-p1(3)/2;
    p1(2)   = p0(2)+p0(4)/2-p1(4)/2;
    h = figure(...
        'Units','pixels',...
        'MenuBar','none',...
        'Units','pixels',...
        'Name','Spec Reader - Current Scan',...
        'NumberTitle','off',...
        'IntegerHandle','off',...
        'Position',p1,...
        'ResizeFcn',@resizefcn,...
        'HandleVisibility','callback',...
        'Tag','figSpecrShowScan',...
        'WindowStyle','normal',...
        'UserData',[]);
    panelSize = [10 60 p1(3)-20 p1(4)-70];
    hPanel1 = uipanel(...
        'Parent',h,...
        'BackgroundColor',get(h,'Color'),...
        'Title','Select Scan',...
        'Units','pixels',...
        'Tag','figspecrshowscan_panel1',...
        'Position',panelSize);
    hPopupmenu1 = uicontrol(...
        'Parent',hPanel1,...
        'Style','popupmenu',...
        'HorizontalAlignment','left',...
        'BackgroundColor','w',...
        'Position',[10 panelSize(4)-40 panelSize(3)-20 20],...
        'String','No scan selected',...
        'Value',1,...
        'callback',@callback_popupmenu1,...
        'Tag','figspecrshowscan_popupmenu1');
    hEdit2 = uicontrol(...
        'Parent',hPanel1,...
        'Style','edit',...
        'BackgroundColor','w',...
        'Position',[10 10 panelSize(3)-20 panelSize(4)-60],...
        'String',{'';'';'';'';'';'No scan selected.'},...
        'Max',2,...
        'Min',0,...
        'HorizontalAlignment','center',...
        'Tag','figspecrshowscan_edit2');
    hPushbuttonRefresh = uicontrol(...
        'Parent',h,...
        'Style','pushbutton',...
        'String','Refresh',...
        'tag','figspecrshowscan_pushbuttonRefresh',...
        'Position',[20 20 50 25],...
        'callback','showscan;');
    hPushbuttonClose = uicontrol(...
        'Parent',h,...
        'Style','pushbutton',...
        'String','Close',...
        'tag','figspecrshowscan_pushbuttonClose',...
        'Position',[p1(3)/2+10 20 50 25],...
        'Callback','delete(gcf);');
end


file = settings.file;
scan = settings.scan;

if isempty(file) | isempty(scan) | ~isfield(scan,'selection') | isempty(scan.selection{1})
    return;
end

% --- load the scan text
selection = scan.selectionIndex;
scanHead = cell(length(selection),1);
scanText = cell(length(selection),1);
[fid,message] = fopen(file);
for iSelection = 1:length(selection)
    fseek(fid,scan.fidPos(selection(iSelection)),'bof');
    scanHead{iSelection} = fgetl(fid);
    scanText{iSelection} = scanHead{iSelection};
    if selection(iSelection) < length(scan.fidPos)  % if not the last scan
        while ftell(fid) < scan.fidPos(selection(iSelection)+1)
            scanText{iSelection} = [scanText{iSelection};{fgetl(fid)}];
        end
    else                                            % if the last scan
        while ~feof(fid)
            scanText{iSelection} = [scanText{iSelection};{fgetl(fid)}];
        end
    end
end
setappdata(h,'scanText',scanText);
hPopupmenu1 = findobj(h,'Tag','figspecrshowscan_popupmenu1');
hEdit2      = findobj(h,'Tag','figspecrshowscan_edit2');
set(hPopupmenu1,'String',scanHead,'value',1);
set(hEdit2,'String',scanText{1},'HorizontalAlignment','left');

%================================================================
% --- callback of popupmenu1
%================================================================
function callback_popupmenu1(hObject,eventdata)
h = findall(0,'Tag','figSpecrShowScan');
hPopupmenu1 = findobj(h,'Tag','figspecrshowscan_popupmenu1');
hEdit2      = findobj(h,'Tag','figspecrshowscan_edit2');

scanText = getappdata(h,'scanText');
set(hEdit2,'String',scanText{get(hPopupmenu1,'value')});
return;


%=================================================================
% --- figure resizefcn function
%=================================================================
function resizefcn(hObject,eventdata)
h = gcbo;
p1 = get(h,'Position');
panelSize = [10 60 p1(3)-20 p1(4)-70];
try
    set(findobj(h,'tag','figspecrshowscan_panel1'),'position',panelSize);
    set(findobj(h,'tag','figspecrshowscan_popupmenu1'),'position',[10 panelSize(4)-40 panelSize(3)-20 20]);
    set(findobj(h,'tag','figspecrshowscan_edit2'),'position',[10 10 panelSize(3)-20 panelSize(4)-60]);
    set(findobj(h,'tag','figspecrshowscan_pushbuttonRefresh'),'position',[p1(3)-20-160 20 80 25]);
    set(findobj(h,'tag','figspecrshowscan_pushbuttonClose'),'position',[p1(3)-10-80 20 80 25]);
catch
end