xcos_debug_gui function added for a simple use of the Debug block

Change-Id: I201a1ed7d69dba3ddb1bc83d5df51e31bcd6c08a

diff --git a/scilab/CHANGES_5.5.X b/scilab/CHANGES_5.5.X
index ad0791e..47ba329 100644 (file)
--- a/scilab/CHANGES_5.5.X
+++ b/scilab/CHANGES_5.5.X
@@ -95,6 +95,8 @@ Scilab Bug Fixes
 Xcos Bug Fixes
 ==============
 
+* xcos_debug_gui function added  for a simple use of the Debug block.
+
 * Bug #12423 fixed - Data types of SWITCH2_m were not documented.
 
 * Bug #12998 fixed - 'ans' was not ignored in the context results.

diff --git a/scilab/modules/helptools/images/Xcos_Debug.png b/scilab/modules/helptools/images/Xcos_Debug.png
new file mode 100644 (file)
index 0000000..7891147
Binary files /dev/null and b/scilab/modules/helptools/images/Xcos_Debug.png differ

diff --git a/scilab/modules/scicos_blocks/macros/Misc/DEBUG_SCICOS.sci b/scilab/modules/scicos_blocks/macros/Misc/DEBUG_SCICOS.sci
index 500e157..660cf2e 100644 (file)
--- a/scilab/modules/scicos_blocks/macros/Misc/DEBUG_SCICOS.sci
+++ b/scilab/modules/scicos_blocks/macros/Misc/DEBUG_SCICOS.sci
@@ -70,8 +70,8 @@ function [x,y,typ]=DEBUG_SCICOS(job,arg1,arg2)
         model.sim=list("%debug_scicos",99)
         model.blocktype="d"
 
-        exprs=list("","pause")
+        exprs=list("","xcos_debug_gui(flag,block);")
         gr_i=["xstringb(orig(1),orig(2),''Debug'',sz(1),sz(2),''fill'')"]
-        x=standard_define([2 2],model,exprs,gr_i)
+        x=standard_define([8 2],model,exprs,gr_i)
     end
 endfunction

diff --git a/scilab/modules/xcos/help/en_US/xcos_debug_gui.xml b/scilab/modules/xcos/help/en_US/xcos_debug_gui.xml
new file mode 100644 (file)
index 0000000..f199616
--- /dev/null
+++ b/scilab/modules/xcos/help/en_US/xcos_debug_gui.xml
@@ -0,0 +1,110 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ * Copyright (C) INRIA - Serge Steer
+ *
+ * This file must be used under the terms of the CeCILL.
+ * This source file is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution.  The terms
+ * are also available at
+ * http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
+ *
+ -->
+
+<refentry xml:id="xcos_debug_gui" xml:lang="en"
+          xmlns="http://docbook.org/ns/docbook"
+          xmlns:xlink="http://www.w3.org/1999/xlink"
+          xmlns:svg="http://www.w3.org/2000/svg"
+          xmlns:scilab="http://www.scilab.org"
+          xmlns:ns4="http://www.w3.org/1999/xhtml"
+          xmlns:mml="http://www.w3.org/1998/Math/MathML"
+          xmlns:db="http://docbook.org/ns/docbook">
+  <refnamediv>
+    <refname>xcos_debug_gui</refname>
+
+    <refpurpose>Interactive debugging function to be used in the Debug Xcos
+    block</refpurpose>
+  </refnamediv>
+
+  <refsection>
+    <title>Description</title>
+
+    <para>The Xcos Debug block allows to set a Scilab instruction that is
+    executed before and after the execution of each blocks during the
+    simulation. Setting the instruction xcos_debug_gui() for the Debug block
+    instruction makes a graphical user interface to be opened at the beginning
+    of the simulation. This GUI allows to interactive debug. In particular it
+    is possible to dynamically specify conditions for which the simulation
+    will be suspended (break points). When halted on a break point user can
+    examine the current values, state, input,... of the block.</para>
+
+    <para>At any time the user can specify break points by a set of cumulative
+    conditions:</para>
+
+    <itemizedlist>
+      <listitem>
+        <para>The flag value for which the current block is called</para>
+      </listitem>
+
+      <listitem>
+        <para>The current date value</para>
+      </listitem>
+
+      <listitem>
+        <para>If the break takes place before and/or the block call</para>
+      </listitem>
+
+      <listitem>
+        <para>The value of a Scilab boolean expression, the break is
+        active if the condition evaluates to true. This expression may
+        use the block variable <link
+        linkend="C_struct">C_struct</link> that contains the current
+        block elements and Scilab functions <link
+        linkend="curblock">curblock</link> and <link
+        linkend="scicos_time">scicos_time</link>. </para>
+      </listitem>
+    </itemizedlist>
+
+    <mediaobject>
+      <imageobject>
+        <imagedata fileref="../images/Xcos_Debug.png" format="PNG"/>
+      </imageobject>
+    </mediaobject>
+
+    <para>When the simulation is suspended, the graphical user interface shows
+    the current time and current flag values, the block number and the path of
+    the block in the super blocks hierarchy. </para>
+
+    <para>The "Next" button restart the simulation till the next suspending
+    condition</para>
+
+    <para>The "End debug" button disable all conditions letting the simulation
+    going on freely up to the end</para>
+
+    <para>The "Pause" button allows to interactively observe the block data
+    structure associated to the current block executing Scilab instructions in
+    the Scilab console. User must enter the "return" instruction to go
+    back.</para>
+  </refsection>
+
+ 
+  <refsection>
+    <title>Authors</title>
+
+    <simplelist type="vert">
+      <member>Serge Steer, INRIA</member>
+    </simplelist>
+  </refsection>
+
+  <refsection>
+    <title>History</title>
+
+    <revhistory>
+      <revision>
+        <revnumber>0.0</revnumber>
+
+        <revdescription>Function xcos_debug_gui added</revdescription>
+      </revision>
+    </revhistory>
+  </refsection>
+</refentry>

diff --git a/scilab/modules/xcos/help/images/Xcos_Debug.png b/scilab/modules/xcos/help/images/Xcos_Debug.png
new file mode 100644 (file)
index 0000000..7891147
Binary files /dev/null and b/scilab/modules/xcos/help/images/Xcos_Debug.png differ

diff --git a/scilab/modules/xcos/images/palettes/DEBUG_SCICOS.png b/scilab/modules/xcos/images/palettes/DEBUG_SCICOS.png
index 2fd1c23..49c1b8f 100644 (file)
Binary files a/scilab/modules/xcos/images/palettes/DEBUG_SCICOS.png and b/scilab/modules/xcos/images/palettes/DEBUG_SCICOS.png differ

diff --git a/scilab/modules/xcos/macros/xcos_debug_gui.sci b/scilab/modules/xcos/macros/xcos_debug_gui.sci
new file mode 100644 (file)
index 0000000..66c4fb9
--- /dev/null
+++ b/scilab/modules/xcos/macros/xcos_debug_gui.sci
@@ -0,0 +1,565 @@
+function flag=xcos_debug_gui(flag,block)
+    // Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+    // Copyright (C) 2013 - INRIA - Serge Steer <serge.steer@inria.fr>
+    //
+    // This file must be used under the terms of the CeCILL.
+    // This source file is licensed as described in the file COPYING, which
+    // you should have received as part of this distribution.  The terms
+    // are also available at;
+    // http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
+
+    if scicos_debug()==0  then return;end
+    gui =  findobj("tag","Xcos_debug_gui");
+    init=gui==[]
+
+    if init then
+        gui=xcos_debug_create_gui()
+        before=%t
+        t=0
+        cb=curblock()
+        f=%cpr.sim.funs(cb)
+        path=%cpr.corinv(cb);
+    end
+    ud=gui.user_data;
+    if ~init then
+        //at least one flags must be selected
+        Flags=find(ud.Flags.value==1)
+        if Flags==[] then
+            Flags=2
+            ud.Flags(2).value=1
+        end
+        //at least before or after must be selected
+        When=find(ud.When.value==1)
+        if When==[] then
+            When=1
+            ud.When(1).value=1
+        end
+
+        if and(flag+1<>Flags) then return,end
+        t=scicos_time();
+        time_to_wait=evstr(ud.Time.string);
+        if t< time_to_wait then return,end
+
+        instr=stripblanks(ud.Condition.string);
+        if instr<>"" then
+            if execstr("Cond="+instr,"errcatch")==0 then
+                if ~Cond then return,end
+            end
+        end
+
+        cb=curblock();// l'index du block dans la structure résultant de la compilation
+        f=%cpr.sim.funs(cb);//fonction de calcul
+
+        path=%cpr.corinv(cb);
+
+        before=ud.previous==[];
+        if before then
+            ud.previous=path
+            if and(When<>1) then set(gui,"user_data",ud);return,end
+        else
+            ud.previous=[]
+            if and(When<>2) then set(gui,"user_data",ud);return,end
+        end
+    end
+    //break asked
+    handles=ud.handles;
+    if before then //before block
+        handles(4).string=_("Stopped before block:")
+    else //after
+        handles(4).string=_("Stopped after block:")
+    end
+    Actions=[_("State derivative computation")
+    _("Regular outputs update")
+    _("States update on discrete event")
+    _("Output activation dates")
+    _("Initialization")
+    _("Ending")
+    _("ReInitialization")
+    _("Continous states properties update")
+    ""
+    _("Zero crossing surfaces computation")
+    _("Residual computation")];
+
+    handles(1).string=msprintf("%.3g",t);
+    handles(2).string=string(cb);
+    handles(3).string=string(flag)+" ("+Actions(flag+1)+")"
+    handles(5).string=sci2exp(path,0)
+    //Highlight current block
+    blk=scs_m.objs(path(1));
+    uids=blk.model.label;
+    for k=2:size(path,"*")
+        blk=blk.model.rpar.objs(path(k));
+        uids=[uids blk.model.label];
+    end
+    ud.Buttons.enable="on";
+    warnBlockByUID(uids, "Error");
+    while %t //To handle pause actions
+        realtimeinit(0.01);
+        tt=0;
+        global ret;
+        ret=0;
+        while ret==0 then
+            //Wait till user select a button
+            //slow down the waiting loop
+            tt=tt+1;
+            realtime(tt);
+        end
+        for k=size(uids,"*"):-1:1
+            warnBlockByUID(uids(1:k), "")
+        end
+
+        r=ret;clearglobal ret;clear ret
+        select r
+        case 1 then //Next
+            if xcos_debug_check_time(ud.Time)&xcos_debug_check_cond(ud.Condition) then
+                if before then ud.previous=path;end
+                ud.Buttons.enable="off"
+                set(gui,"user_data",ud)
+                return
+            end
+        case 2 then //End debug
+            scicos_debug(0)
+            delete(gui.parent)
+            return
+        case 3 then //pause
+            Y=list()
+            if block.nout>0 then
+                outtb=%cpr.state.outtb
+                sz=matrix(block.outsz,block.nout,-1)
+                for i=1:block.nout
+                    Y($+1)=%cpr.state.outtb(block.outptr(i)+(1:prod(sz(i,1:2))))
+                end
+            end
+            U=list()
+            if block.nin>0 then
+                outtb=%cpr.state.outtb
+                sz=matrix(block.insz,block.nin,-1)
+                for i=1:block.nout
+                    U($+1)=%cpr.state.outtb(block.inptr(i)+(1:prod(sz(i,1:2))))
+                end
+            end
+            ud.Buttons.enable="off"
+            pause
+            ud.Buttons.enable="on"
+            if before then ud.previous=path;end
+            set(gui,"user_data",ud)
+            //    end
+        end
+    end
+endfunction
+
+function gui=xcos_debug_create_gui()
+    margin_x     = 5;      // Horizontal margin between each elements
+    margin_y     = 5;      // Vertical margin between each elements
+    button_w     = 80;
+    button_h     = 20;
+    label_h      = 20;
+    label_h1      = 30;
+    label_w1      = 200;
+    label_w2      = 80;
+    frame_w     = max(4*margin_x+label_w1+label_w2,4*margin_x+3*button_w,12*margin_x+10*label_h)
+    frame_h     = 16*margin_y+10*label_h+3*label_h1+button_h
+
+    axes_w       = 2*margin_x+frame_w;
+    axes_h       = 2*margin_y+frame_h;// Frame height
+    defaultfont  = "arial"; // Default Font
+
+    fig_id=max(winsid())+1
+    fig = scf(fig_id)
+    toolbar(fig.figure_id, "off");
+    fig.axes_size       = [axes_w axes_h];
+    // Remove Scilab graphics menus & toolbar
+    delmenu(fig.figure_id, gettext("&File"));
+    delmenu(fig.figure_id, gettext("&Tools"));
+    delmenu(fig.figure_id, gettext("&Edit"));
+    delmenu(fig.figure_id, gettext("&?"));
+    fig.figure_size(2)=axes_h
+    fig.axes_size       = [axes_w axes_h];
+    fig.background      = addcolor([0.8 0.8 0.8]);
+    fig.figure_name     = _("Xcos debug");
+    fig.closerequestfcn = "xcos_debug_gui_close()"
+    ax=fig.children;
+    ax.background= fig.background ;
+
+    gui=uicontrol( ...
+    "parent"              , fig,...
+    "style"               , "frame",...
+    "units"               , "pixels",...
+    "position"            , [margin_x margin_y frame_w frame_h],...
+    "background"          , [1 1 1]*0.8, ...
+    "tag"                 , "Xcos_debug_gui",...
+    "visible"             , "on");
+
+    yo=axes_h-button_h;
+
+
+    y=frame_h-margin_y-label_h1
+    x=margin_x;
+    uicontrol( ...
+    "parent"              , gui,...
+    "style"               , "text",...
+    "string"              , _("Break point conditions"),...
+    "units"               , "pixels",...
+    "position"            , [x y frame_w-2*margin_x label_h1],....
+    "fontname"            , defaultfont,...
+    "fontunits"           , "points",...
+    "fontsize"            , 16,...
+    "fontweight"          , "bold", ...
+    "horizontalalignment" , "center", ...
+    "background"          , [1 1 1]*0.8, ...
+    "visible"             , "on");
+    y=y-label_h-margin_y;
+    uicontrol( ...
+    "parent"              , gui,...
+    "style"               , "text",...
+    "string"              , _("Break on selected flags"),...
+    "units"               , "pixels",...
+    "position"            , [x y frame_w-2*margin_x label_h],....
+    "fontname"            , defaultfont,...
+    "fontunits"           , "points",...
+    "fontsize"            , 12,...
+    "fontweight"          , "bold", ...
+    "horizontalalignment" , "left", ...
+    "background"          , [1 1 1]*0.8, ...
+    "visible"             , "on");
+    yl=y-label_h-margin_y;
+    y=yl-label_h-margin_y;
+    xk=x
+    Flags=[]
+    for k=0:9
+        uicontrol( ...
+        "parent"              , gui,...
+        "style"               , "text",...
+        "string"              , string(k),...
+        "units"               , "pixels",...
+        "position"            , [xk yl label_h label_h],....
+        "fontname"            , defaultfont,...
+        "fontunits"           , "points",...
+        "fontsize"            , 12,...
+        "fontweight"          , "bold", ...
+        "horizontalalignment" , "left", ...
+        "background"          , [1 1 1]*0.8, ...
+        "visible"             , "on");
+        Flags=[Flags,uicontrol( ...
+        "parent"              , gui,...
+        "style"               , "checkbox",...
+        "value"               , 0,...
+        "units"               , "pixels",...
+        "position"            , [xk y label_h label_h],....
+        "fontname"            , defaultfont,...
+        "fontunits"           , "points",...
+        "fontsize"            , 12,...
+        "fontweight"          , "bold", ...
+        "horizontalalignment" , "left", ...
+        "background"          , [1 1 1]*0.8, ...
+        "visible"             , "on")];
+        xk=xk+label_h+margin_x
+    end
+    Flags(2).value=1;
+    yl=y-label_h-margin_y;
+    y=yl-label_h-margin_y;
+    xk=x;
+    When=[]
+    L=[_("Before call"),_("After call")]
+    for k=1:2
+        uicontrol( ...
+        "parent"              , gui,...
+        "style"               , "text",...
+        "string"              , L(k),...
+        "units"               , "pixels",...
+        "position"            , [xk yl label_w2 label_h],....
+        "fontname"            , defaultfont,...
+        "fontunits"           , "points",...
+        "fontsize"            , 12,...
+        "fontweight"          , "bold", ...
+        "horizontalalignment" , "left", ...
+        "background"          , [1 1 1]*0.8, ...
+        "visible"             , "on");
+        When=[When,uicontrol( ...
+        "parent"              , gui,...
+        "style"               , "checkbox",...
+        "value"               , 0,...
+        "units"               , "pixels",...
+        "position"            , [xk y label_h label_h],....
+        "fontname"            , defaultfont,...
+        "fontunits"           , "points",...
+        "fontsize"            , 12,...
+        "fontweight"          , "bold", ...
+        "horizontalalignment" , "left", ...
+        "background"          , [1 1 1]*0.8, ...
+        "visible"             , "on")];
+        xk=xk+label_w2+margin_x
+    end
+    When(1).value=1;
+    uicontrol( ...
+    "parent"              , gui,...
+    "style"               , "text",...
+    "string"              , _("After date"),...
+    "units"               , "pixels",...
+    "position"            , [xk yl label_w2 label_h],....
+    "fontname"            , defaultfont,...
+    "fontunits"           , "points",...
+    "fontsize"            , 12,...
+    "fontweight"          , "bold", ...
+    "horizontalalignment" , "left", ...
+    "background"          , [1 1 1]*0.8, ...
+    "visible"             , "on");
+    Time=uicontrol( ...
+    "parent"              , gui,...
+    "style"               , "edit",...
+    "string"               , "0",...
+    "units"               , "pixels",...
+    "position"            , [xk y label_w2 label_h],....
+    "fontname"            , defaultfont,...
+    "fontunits"           , "points",...
+    "fontsize"            , 12,...
+    "fontweight"          , "bold", ...
+    "horizontalalignment" , "left", ...
+    "background"          , [1 1 1]*0.8, ...
+    "callback"            , "xcos_debug_check_time();" ,...
+    "visible"             , "on");
+    y=y-label_h-2*margin_y;
+    uicontrol( ...
+    "parent"              , gui,...
+    "style"               , "text",...
+    "string"              , _("On the Scilab condition above"),...
+    "units"               , "pixels",...
+    "position"            , [x y frame_w-2*margin_x label_h],....
+    "fontname"            , defaultfont,...
+    "fontunits"           , "points",...
+    "fontsize"            , 12,...
+    "fontweight"          , "bold", ...
+    "horizontalalignment" , "left", ...
+    "background"          , [1 1 1]*0.8, ...
+    "visible"             , "on");
+    y=y-label_h-2*margin_y;
+    Condition=uicontrol( ...
+    "parent"              , gui,...
+    "style"               , "edit",...
+    "string"              , "",...
+    "units"               , "pixels",...
+    "position"            , [x y frame_w-6*margin_x label_h],....
+    "fontname"            , defaultfont,...
+    "fontunits"           , "points",...
+    "fontsize"            , 12,...
+    "fontweight"          , "bold", ...
+    "horizontalalignment" , "left", ...
+    "background"          , [1 1 1]*0.8, ...
+    "callback"            , "xcos_debug_check_cond();" ,...
+    "visible"             , "on");
+    y=y-label_h1-margin_y;
+    uicontrol( ...
+    "parent"              , gui,...
+    "style"               , "text",...
+    "string"              , _("Current simulation state"),...
+    "units"               , "pixels",...
+    "position"            , [x y frame_w-2*margin_x label_h1],....
+    "fontname"            , defaultfont,...
+    "fontunits"           , "points",...
+    "fontsize"            , 16,...
+    "fontweight"          , "bold", ...
+    "horizontalalignment" , "center", ...
+    "background"          , [1 1 1]*0.8, ...
+    "visible"             , "on");
+    y=y-label_h-margin_y;
+    X=uicontrol( ...
+    "parent"              , gui,...
+    "style"               , "text",...
+    "string"              , "",...
+    "units"               , "pixels",...
+    "position"            , [x y label_w1 label_h],....
+    "fontname"            , defaultfont,...
+    "fontunits"           , "points",...
+    "fontsize"            , 12,...
+    "horizontalalignment" , "left", ...
+    "fontweight"          , "bold", ..
+    "background"          , [1 1 1]*0.8, ...
+    "visible"             , "on");
+
+    B=uicontrol( ...
+    "parent"              , gui,...
+    "style"               , "text",...
+    "string"              , "0",...
+    "units"               , "pixels",...
+    "position"            , [x+label_w1+margin_x y label_w2 label_h],....
+    "fontname"            , defaultfont,...
+    "fontunits"           , "points",...
+    "fontsize"            , 12,...
+    "horizontalalignment" , "right", ...
+    "background"          , [1 1 1]*0.8, ...
+    "visible"             , "on");
+    y=y-label_h-margin_y;
+    //%%%%%%
+    uicontrol( ...
+    "parent"              , gui,...
+    "style"               , "text",...
+    "string"              , _("scs_m block path:"),...
+    "units"               , "pixels",...
+    "position"            , [x y label_w1 label_h],....
+    "fontname"            , defaultfont,...
+    "fontunits"           , "points",...
+    "fontsize"            , 12,...
+    "fontweight"          , "bold", ...
+    "horizontalalignment" , "left", ...
+    "background"          , [1 1 1]*0.8, ...
+    "visible"             , "on");
+
+    P=uicontrol( ...
+    "parent"              , gui,...
+    "style"               , "text",...
+    "string"              , "0",...
+    "units"               , "pixels",...
+    "position"            , [x+label_w1+margin_x y label_w2 label_h],....
+    "fontname"            , defaultfont,...
+    "fontunits"           , "points",...
+    "fontsize"            , 12,...
+    "horizontalalignment" , "right", ...
+    "background"          , [1 1 1]*0.8, ...
+    "visible"             , "on");
+    y=y-label_h-margin_y;
+    uicontrol( ...
+    "parent"              , gui,...
+    "style"               , "text",...
+    "string"              , _("Time:"),...
+    "units"               , "pixels",...
+    "position"            , [x y label_w1 label_h],....
+    "fontname"            , defaultfont,...
+    "fontunits"           , "points",...
+    "fontsize"            , 12,...
+    "fontweight"          , "bold", ...
+    "horizontalalignment" , "left", ...
+    "background"          , [1 1 1]*0.8, ...
+    "visible"             , "on");
+
+    T=uicontrol( ...
+    "parent"              , gui,...
+    "style"               , "text",...
+    "string"              , "0",...
+    "units"               , "pixels",...
+    "position"            , [x+label_w1+margin_x y label_w2 label_h],....
+    "fontname"            , defaultfont,...
+    "fontunits"           , "points",...
+    "fontsize"            , 12,...
+    "horizontalalignment" , "right", ...
+    "background"          , [1 1 1]*0.8, ...
+    "visible"             , "on");
+
+    y=y-label_h-margin_y;
+    uicontrol( ...
+    "parent"              , gui,...
+    "style"               , "text",...
+    "string"              , _("Flag:"),...
+    "units"               , "pixels",...
+    "position"            , [x y 4*label_h label_h],....
+    "fontname"            , defaultfont,...
+    "fontunits"           , "points",...
+    "fontsize"            , 12,...
+    "fontweight"          , "bold", ...
+    "horizontalalignment" , "left", ...
+    "background"          , [1 1 1]*0.8, ...
+    "visible"             , "on");
+
+    F=uicontrol( ...
+    "parent"              , gui,...
+    "style"               , "text",...
+    "string"              , "6",...
+    "units"               , "pixels",...
+    "position"            , [x+4*label_h+margin_x y label_w2+label_w1+-4*label_h label_h],....
+    "fontname"            , defaultfont,...
+    "fontunits"           , "points",...
+    "fontsize"            , 12,...
+    "horizontalalignment" , "right", ...
+    "background"          , [1 1 1]*0.8, ...
+    "visible"             , "on");
+
+    //buttons
+    y=y-button_h-margin_y;
+    xb=x;
+    Next = uicontrol( ...
+    "parent"              , gui,...
+    "relief"              , "groove",...
+    "style"               , "pushbutton",...
+    "string"              , _("Next"),...
+    "units"               , "pixels",...
+    "position"            , [xb,y,button_w button_h],..
+    "fontname"            , "arial",...
+    "fontunits"           , "points",...
+    "fontsize"            , 12,...
+    "fontweight"          , "bold", ...
+    "horizontalalignment" , "center", ...
+    "visible"             , "on", ...
+    "callback"            , "global ret;ret=1;");
+    xb=xb+margin_x+button_w
+    Stop = uicontrol( ...
+    "parent"              , gui,...
+    "relief"              , "groove",...
+    "style"               , "pushbutton",...
+    "string"              , _("End debug"),...
+    "units"               , "pixels",...
+    "position"            , [xb,y,button_w button_h],..
+    "fontname"            , "arial",...
+    "fontunits"           , "points",...
+    "fontsize"            , 12,...
+    "fontweight"          , "bold", ...
+    "horizontalalignment" , "center", ...
+    "visible"             , "on", ...
+    "callback"            , "global ret;ret=2;");
+    xb=xb+margin_x+button_w
+    Pause = uicontrol( ...
+    "parent"              , gui,...
+    "relief"              , "groove",...
+    "style"               , "pushbutton",...
+    "string"              , _("Pause"),...
+    "units"               , "pixels",...
+    "position"            , [xb,y,button_w button_h],..
+    "fontname"            , "arial",...
+    "fontunits"           , "points",...
+    "fontsize"            , 12,...
+    "fontweight"          , "bold", ...
+    "horizontalalignment" , "center", ...
+    "visible"             , "on", ...
+    "callback"            , "global ret;ret=3;");
+
+    set(gui,"user_data",struct("handles",[T,B,F,X,P],"previous",[],...
+    "Flags",Flags,"When",When,"Time",Time,...
+    "Condition",Condition,...
+    "Buttons",[Next,Stop,Pause]))
+endfunction
+function ok=xcos_debug_check_time(Time)
+    if argn(2)<1 then Time=gcbo;end
+    ud=Time.parent.user_data
+    ok=execstr("t="+Time.string,"errcatch")==0
+    if ~ok|type(t)<>1|size(t,"*")<>1 then
+        Time.ForegroundColor=[1 0 0];
+        ud.Buttons.enable="off"
+        ok=%f
+    else
+        Time.ForegroundColor=[0 0 0];
+        ud.Buttons.enable="on"
+        ok=%t
+    end
+endfunction
+function ok=xcos_debug_check_cond(Condition)
+    if argn(2)<1 then Condition=gcbo;end
+    ud=Condition.parent.user_data
+    Cond=stripblanks(Condition.string)
+    if Cond=="" then
+        ok=%t
+        c=%f
+    else
+        ok=execstr("c="+Cond,"errcatch")==0
+    end
+    if ~ok|and(type(c)<>[1 4])|size(c,"*")<>1 then
+        Condition.ForegroundColor=[1 0 0];
+        ud.Buttons.enable="off"
+        ok=%f
+    else
+        Condition.ForegroundColor=[0 0 0];
+        ud.Buttons.enable="on"
+        ok=%t
+    end
+
+endfunction
+function xcos_debug_gui_close()
+    messagebox(msprintf(_("Use the ""%s"" button to end the debugging"),_("End debug")),"modal")
+endfunction