randgui.m

ADSP TOOLBOX: Version 2.0 and gui m-files

function randgui(mode)
%RANDGUI Graphical User Interface program for random signal concepts.


% ADSP Toolbox: Version 2.0 
% For use with "Analog and Digital Signal Processing", 2nd Ed.
% Published by PWS Publishing Co.
%
% Ashok Ambardar, EE Dept. MTU, Houghton, MI 49931, USA
% http://www.ee.mtu/faculty/akambard.html
% e-mail: [e-mail]
% Copyright (c) 1998

% Assisted by Craig Borghesani
% http://world.std.com/~borg/



v=matverch;
if v<5,
errordlg('This gui requires MATLAB 5.x and above','Version Error');
return,
end

if nargin == 0, mode = 0; end

if mode ~= 0,
   f = gcf;
   ui = get(f,'userdata');
   sig_axs=ui(22);
   opr_axs=ui(25);
   curs_btn=ui(30);
   curs_dsp=ui(31:34);

end

if mode == 0,
   grey = [0.5,0.5,0.5];
   ltgrey = grey*1.5;
   dkgrey = grey*0.5;
   scrn_size = get(0,'screensize');
   fig_w = 620; fig_h = 450;
   flft = (scrn_size(3) - fig_w)/2;
   fbtm = (scrn_size(4) - fig_h)/2;

   ver_str = version;
   ver4    = length(findstr('4.',ver_str));
   if ver4,
      int_str = 'yes';
      f = figure('pos',[flft,fbtm,fig_w,fig_h],'menubar','none',...
            'name','Random Signals','numbertitle','off',...
            'resize','off','vis','off','interruptible',int_str,...
            'color',dkgrey,'defaultaxesfontsize',10,...
            'defaulttextfontsize',10);
   else
      int_str = 'on';
      eval('f = colordef(''new'',''none'');');
      set(f,'pos',[flft,fbtm,fig_w,fig_h],'menubar','none',...
           'name','Random Signals','numbertitle','off',...
           'resize','off','vis','off','interruptible',int_str,...
           'color',dkgrey,'defaultaxesfontsize',8,...
           'defaultuicontrolback',[0.5,0.5,0.5],...
           'defaulttextfontsize',8);
   end

%%% OPTIONS: %
   uim(1) = uimenu('label','OPTIONS');
   uim(2) = uimenu(uim(1),'label','Help and Info','callback','randhlp');
   uim(3) = uimenu(uim(1),'label','Export Data','separator','on',...
                          'callback','randgui(15)');
   uim(4) = uimenu(uim(1),'label','Print Figure','separator','on',...
                          'callback','printdlg(gcf)');
   uim(5) = uimenu(uim(1),'label','Close and Exit','separator','on',...
                          'callback','close(gcf)');
   uim(6) = uimenu('label','   Axis Limits','separator','on',...
                          'callback','randgui(17)');
   uim(7) = uimenu('label','   Zoom ON','separator','on',...
                          'callback','randgui(18)');
   uim(8) = uimenu('label','   Zoom OFF','separator','on',...
                          'callback','randgui(19)');
   uim(9) = uimenu('label','   RESIZE','callback','randgui(20)');


%%%%%%%%%%



   lft = 10; btm = fig_h - 15;
   ui(8) = uicontrol('style','frame','pos',[lft-5,btm-145+22,175,145-22],...
         'back',grey,'fore',ltgrey);

   btm = btm - 22;
   ui(9) = uicontrol('style','text','pos',[lft,btm,110,17],...
           'horiz','right','string','Number of Signals');
   ui(10) = uicontrol('style','edit','pos',[lft+115,btm,50,18],...
           'back','w','string','1','callback','randgui(1)');

   btm = btm - 22;
   ui(12) = uicontrol('style','text','pos',[lft,btm,110,17],...
           'horiz','right','string','Signal Length');
   ui(13) = uicontrol('style','edit','pos',[lft+115,btm,50,18],...
           'back','w','string','500','callback','randgui(1)');

   btm = btm - 22;
   ui(15) = uicontrol('style','text','pos',[lft,btm,110,17],...
           'horiz','right','string','Number of Bins','userdata',0);
   ui(16) = uicontrol('style','edit','pos',[lft+115,btm,50,18],...
           'back','w','string',num2str(floor(sqrt(500))),...
           'callback','randgui(1)');

   btm = btm - 26;
   ui(18) = uicontrol('style','text','pos',[lft,btm,70,17],...
           'horiz','left','string','Distribution','fore','c');
   ui(19) = uicontrol('style','popup','pos',[lft+72,btm,93,20],...
           'string',['Gaussian|Uniform|Exponential|Gamma|',...
           'Rayleigh'],...
           'back','w','callback','randgui(3)');

   btm = btm - 26;
   ui(20) = uicontrol('style','text','pos',[lft,btm,110,17],...
           'horiz','right','string','Mean Value');
   ui(21) = uicontrol('style','edit','pos',[lft+115,btm,50,18],...
           'back','w','string','0','callback','randgui(1)');

   btm = btm - 11;
   ui(1) = uicontrol('style','frame','pos',[lft-5,btm-95,175,95],...
         'back',grey,'fore',ltgrey);

   btm = btm - 22;
   uicontrol('style','text','pos',[lft,btm,150,17],...
     'string','Signal Measures','horiz','left','fore','c');

   btm = btm - 22;
   ui(2) = uicontrol('style','text','pos',[lft,btm,90,17],...
           'horiz','right','string','Mean');
   ui(3) = uicontrol('style','text','pos',[lft+95,btm,70,17],...
           'horiz','right','back',ltgrey);

   btm = btm - 22;
   ui(4) = uicontrol('style','text','pos',[lft,btm,90,17],...
           'horiz','right','string','St. Deviation');
   ui(5) = uicontrol('style','text','pos',[lft+95,btm,70,17],...
           'horiz','right','back',ltgrey);

   btm = btm - 22;
   ui(6) = uicontrol('style','text','pos',[lft,btm,90,17],...
           'horiz','right','string','Variance');
   ui(7) = uicontrol('style','text','pos',[lft+95,btm,70,17],...
           'horiz','right','back',ltgrey);

   btm = btm -35;
   ui(30) = uicontrol('style','check','pos',[lft+95,btm,70,20],...
           'string','Cursor','back','y','callback','randgui(6)');



   pos = get(f,'pos');
   lef = pos(3)-166;
   bot = pos(4)-21;

   ui(31) = uicontrol('style','text','pos',[lef,bot,20,20],...
           'string','X ','horiz','right');
   ui(32) = uicontrol('style','text','pos',[lef+20,bot,60,20],...
           'string','','back','w');
   ui(33) = uicontrol('style','text','pos',[lef+85,bot,20,20],...
           'string','Y ','horiz','right');
   ui(34) = uicontrol('style','text','pos',[lef+105,bot,60,20],...
           'string','','back','w');
   set(ui(31:34),'vis','off');



   ui(22) = axes('units','pixel','pos',[210,250,390,160],'box','on',...
            'xgrid','on','ygrid','on','color','k',...
            'xcolor','w','ycolor','w');
   title('Random Signal(s)');
   xlabel('Sample Index');
   ui(23) = line('xdata',0,'ydata',0,'color','y');
   ui(24) = line('xdata',0,'ydata',0,'color','y');
   set(ui(22),'userdata',ui(23:24));

   ui(25) = axes('units','pixel','pos',[210,40,390,160],'box','on',...
            'xgrid','on','ygrid','on','color','k',...
            'xcolor','w','ycolor','w');



   set(f,'userdata',ui);
   randplt;
   drawnow;
   set(f,'vis','on');


elseif mode == 1, % using edit boxes
   edt = gco;
   edt_val = str2num(get(edt,'string'));
   if ~length(edt_val),
      errordlg('You must enter a VALID number.','Input Error');
      return;
   end
   if edt == ui(21)
   val=get(ui(19),'value');
   if val==4 & edt_val < 1
      errordlg('Gamma requires a mean >= 1.','Input Error');
      return;
   end
   if (val==3|val==5) & edt_val <=0
      errordlg('You must enter a positive value for mean.','Input Error');
      return;
   end

   else
   if edt_val <= 0|rem(edt_val,1)~=0,
      errordlg('You must enter a positive integer.','Input Error');
      return;
   end
   end
   randplt;


elseif mode == 3, % using radio buttons
   val = str2num(get(ui(21),'string'));
   if ~length(val),
      errordlg('Nothing entered for mean.','Input Error');
      return;
   end
   val2=get(ui(19),'value');

   if val2==4 & val < 1
      errordlg('Gamma requires a mean >= 1.','Input Error');
      return;
   end
   if (val2 == 3|val2==5) & val <=0
      errordlg('You must enter a positive value for mean.','Input Error');
      return;
   end
   randplt;


elseif mode == 6, % cursor
    if get(curs_btn,'value')
    set(curs_dsp,'vis','on');

    set(f,'WindowButtonMotionFcn','randgui(7)');

    else

  set(f,'Pointer','arrow','WindowButtonMotionFcn','');


   set(curs_dsp,'vis','off')
   set(curs_btn,'value',0),

    end
elseif mode == 7, % cursor movement
       h=gca;
       set(f,'currentaxes',h);
       lim=get(h,'pos');  % get current axis position
       c_p = [lim(1) lim(1)+lim(3) lim(2) lim(2)+lim(4)];
       f_p=get(f,'CurrentPoint'); % get co-ordinates of current point

     if f_p(1) < c_p(1) | f_p(1) > c_p(2) | f_p(2) < c_p(3) | f_p(2) > c_p(4)
        set(f,'Pointer','arrow');

        set(curs_dsp(2),'string','');
        set(curs_dsp(4),'string','');

     else
        curr_pt=get(h,'CurrentPoint');  % get current mouse position
        set(f,'Pointer','crosshair');
        set(curs_dsp(2),'string',num2str(curr_pt(1,1)));
        set(curs_dsp(4),'string',num2str(curr_pt(1,2)));
     end


elseif mode == 15, %Export data
randplt;
str1='Export random signal(s) as';
str2='Export time index of random signal(s) as';
str3='[Use bar(bins,bval) to plot] Export histogram bins as';
str4='Export histogram bin values (bval) as';
exp_str={str1,str2,str3,str4};
exp_var={'randsig','randind','bins','bval'};

expect=inputdlg(exp_str,'Save Variables as',1,exp_var);
if ~isempty(expect)
rnd=get(ui(30),'userdata');%%% FIX FOR UIs 
ha=get(ui(31),'userdata');%%% FIX FOR UIs 
hf=get(ui(32),'userdata');
if ~isempty(expect{1}),assignin('base',expect{1},rnd(:,1));end
if ~isempty(expect{2}),assignin('base',expect{2},rnd(:,2));end
if ~isempty(expect{3}),assignin('base',expect{3},ha);end
if ~isempty(expect{4}),assignin('base',expect{4},hf);end
end


elseif mode == 16, % Axis Control Help
msgbox([' First click in a plot window.                             ',... 
'                  Then, come back and execute'],...
'Axis Control Info','help')


elseif mode == 17, % Axis Control
cur_axs=[];   cur_obj = gco;
   cur_par = get(cur_obj,'parent');
if ~isempty(cur_par)
   if cur_par == f,
      cur_axs = cur_obj;
   else
      cur_axs = cur_par;
   end
end

if isempty(cur_axs),randgui(16);
else
set(curs_btn,'value',0);
randgui(6); %%% REPLACE number BY CURSOR MODE 
if any(cur_axs==ui([22,25])),%%%% CHANGE UI numbers
if cur_axs==ui(22),txt='Sum of realizations';%%%% CHANGE UI numbers
elseif cur_axs==ui(25),txt='Histogram of sum';%%%% CHANGE UI numbers
end
axlimdlg(txt,[1 1]); %[1 1]=auto +linear/log,  [1 0]=auto, no linear/log
else
randgui(16);
end
end


elseif mode == 18, % zoom on
set(curs_btn,'value',0);
randgui(6);                    % Use CURSOR MODE 
if get(ui(15),'userdata')==0  %%Change ui(15) to whatever
zoom on
set(ui(15),'userdata',1);
else
msgbox('Zoom is already ON.','Zoom Info','help')
end

elseif mode == 19, % zoom off
set(curs_btn,'value',0);
randgui(6);                    % Use CURSOR MODE 
if get(ui(15),'userdata')==1

%%%%%Insert old zoom off here
set(f,'currentaxes',ui(22));
zoom out,zoom reset,zoom off
set(f,'currentaxes',ui(25));
zoom out,zoom reset,zoom off
set(ui(15),'userdata',0);
else
msgbox('Zoom is already OFF.','Zoom Info','help')
end



elseif mode == 20, % mouse functionality
cur_axs = [];   cur_obj = gco;
   cur_par = get(cur_obj,'parent');

if ~isempty(cur_par)
   if cur_par == f,
      cur_axs = cur_obj;
   else
      cur_axs = cur_par;
   end
end


if isempty(cur_axs),randgui(16);return,end

   if any(cur_axs == [sig_axs,opr_axs]),
      axes(cur_axs);
         axs_pos = get(cur_axs,'pos');
         if axs_pos(4) == 160, % need to maximize
               set([sig_axs,opr_axs],'vis','off');
            set(cur_axs,'pos',[210,40,390,370],'vis','on');

         else % minimization
              set(sig_axs,'pos',[210,250,390,160],'vis','on');
              set(opr_axs,'pos',[210,40,390,160],'vis','on');
         end
   else
         randgui(16);
   end


end