Scilab - calling another GUI within a GUI. Functions not working

Question

I'm quite new to scilab, I have created two GUIs (see example below), with script 2 being called from script 1. However the function in script 2 don't seem to work. Can anyone help?

Script 1

'//////////
f=figure('figure_position',[0,0],'figure_size',[1250,650]);
//////////
delmenu(f.figure_id,gettext('File'))
delmenu(f.figure_id,gettext('?'))
delmenu(f.figure_id,gettext('Tools'))
toolbar(f.figure_id,'off')

handles.dummy = 0 ;

handles.exam=uicontrol(f,'unit','normalized','BackgroundColor',        [0.5,1,1],'Enable','on','FontAngle','normal','FontName','helvetica','FontSize',[14],'FontUnits','points','FontWeight','bold','ForegroundColor',[0,0.5,0],'HorizontalAlignment','center','ListboxTop',[],'Max',[1],'Min',[0],'Position',[0.5,0.5,0.1,0.05],'Relief','flat','SliderStep',[0.01,0.1],'String','exam','Style','pushbutton','Value',[0],'VerticalAlignment','middle','Visible','on','Tag','obj102','Callback','exam_callback(handles)')

function exam_callback(handles)
close(f);
clear
exec('costs0-1.sce',-1) ; 
endfunction`

Script 2

////////// Defining the figure (size, name etc)/////////////////////////////
f=figure('figure_position',[0,0],'figure_size',[1250,650],'auto_resize','on','background',[8]);

//////////
delmenu(f.figure_id,gettext('File'))
delmenu(f.figure_id,gettext('?'))
delmenu(f.figure_id,gettext('Tools'))
toolbar(f.figure_id,'off')



//Cabinet - TEXT
handles.obj17=uicontrol(f,'unit','normalized','BackgroundColor',[1,1,1],'Enable','on','FontAngle','normal','FontName','helvetica','FontSize',[12],'FontUnits','points','FontWeight','normal','ForegroundColor',[0,0,0],'HorizontalAlignment','center','ListboxTop',[],'Max',[1],'Min',[0],'Position',[0.15,0.93,0.1,0.05],'Relief','flat','SliderStep',[0.01,0.1],'String','Cabinet','Style','text','Value',[0],'VerticalAlignment','middle','Visible','on','Tag','obj17','Callback','')

// Cabinet - POP UP MENU
handles.service=uicontrol(f,'unit','normalized','BackgroundColor',[0.8,0.8,0.8],'Enable','on','FontAngle','normal','FontName','helvetica','FontSize',[12],'FontUnits','points','FontWeight','normal','ForegroundColor',[0,0.5,0],'HorizontalAlignment','center','ListboxTop',[],'Max',[1],'Min',[0],'Position',[0.25,0.93,0.15,0.05],'Relief','flat','SliderStep',[0.01,0.1],'String','1|2','Style','popupmenu','Value',[1],'VerticalAlignment','middle','Visible','on','Tag','service','Callback','service_callback(handles)')


// CALCULATE  PUSHBUTTON
handles.Calculate=uicontrol(f,'unit','normalized','BackgroundColor',[0,0.8,0],'Enable','on','FontAngle','normal','FontName','helvetica','FontSize',[16],'FontUnits','points','FontWeight','bold','ForegroundColor',[0,0,0],'HorizontalAlignment','center','ListboxTop',[],'Max',[1],'Min',[0],'Position',[0.22,0.02,0.15,0.08],'Relief','raised','SliderStep',[0.01,0.1],'String','CALCULATE','Style','pushbutton','Value',[0],'VerticalAlignment','middle','Visible','on','Tag','Calculate','Callback','Calculate_callback(handles)')

 // Resources- TEXT
 handles.Resourcestxt=uicontrol(f,'unit','normalized','BackgroundColor',[1,1,1],'Enable','on','FontAngle','normal','FontName','helvetica','FontSize',[14],'FontUnits','points','FontWeight','bold','ForegroundColor',[0,0.5,0],'HorizontalAlignment','center','ListboxTop',[],'Max',[1],'Min',[0],'Position',[0.75,0.95,0.20,0.05],'SliderStep',[0.01,0.1],'String','Resources in hours','Style','text','Value',[0],'VerticalAlignment','middle','Visible','on','Tag','','Callback','')

// TOTAL hours - TEXT
handles.totalhourstxt=uicontrol(f,'unit','normalized','BackgroundColor',[1,1,1],'Enable','on','FontAngle','normal','FontName','helvetica','FontSize',[14],'FontUnits','points','FontWeight','bold','ForegroundColor',[0,0.5,0],'HorizontalAlignment','center','ListboxTop',[],'Max',[1],'Min',[0],'Position',[0.75,0.75,0.12,0.05],'SliderStep',[0.01,0.1],'String','Total Hours','Style','text','Value',[0],'VerticalAlignment','middle','Visible','on','Tag','','Callback','')

// hardware hours  - text
handles.totalhours=uicontrol(f,'unit','normalized','BackgroundColor',[0.95,1,1],'Enable','on','FontAngle','normal','FontName','helvetica','FontSize',[14],'FontUnits','points','FontWeight','bold','ForegroundColor',[0,0.5,0],'HorizontalAlignment','center','ListboxTop',[],'Max',[1],'Min',[0],'Position',[0.88,0.75,0.08,0.05],'SliderStep',[0.01,0.1],'String','','Style','text','Value',[0],'VerticalAlignment','middle','Visible','on','Tag','totalhours','Callback','')

function Calculate_callback(handles)
if handles.service.value == 1 then
resource_hrs = 2
end

if handles.service.value == 2 then
resource_hrs = 10
end

set(handles.totalhours,'String',string(resource_hrs));

endfunction

Answer 1

Problem

It is a scoping problem. When function exam_callback() gets called it runs the other script with exec('costs0-1.sce',-1). In that script you define the function Calculate_callback(handles). This goes out of scope and is deleted when exam_callback() is finished and as such can't be called when the button is pressed.

The second problem is that the handles are not globally affected, so when leaving exam_callback() the handles of the second Cost Gui are not added to handles.

Solution

You can move the generating of the GUI into a function createCostGui() and then load script2 at the start of script1 with exec('costs0-1.sce',-1);.

To make Calculate_callback(handles) function discard the handles argument and use the tags to find the handles

function Calculate_callback()

    serviceHandle = findobj('tag','service');

    if serviceHandle.value == 1 then
        resource_hrs = 2
    end

    if serviceHandle.value == 2 then
        resource_hrs = 10
    end

    totalHoursHandle = findobj('tag','totalhours');

    set(totalHoursHandle,'String',string(resource_hrs));

endfunction

Further remarks

Text elements are generally static and thus don't need a Callback argument. If you want an argument to stay at its default value, you don't need to specify them.

From the Scilab documentation:

h = uicontrol(PropertyName, PropertyValue,...) creates an uicontrol and assigns the specified properties and values to it. It assigns the default values to any properties you do not specify. The default uicontrol style is a "Pushbutton". The default parent is the current figure. See the Properties section for information about these and other properties.

Small remark on your question

Next time an error message could help with making your question more specific.