Widget.c

/*-
 * Copyright (c) 1997-2002 The Protein Laboratory, University of Copenhagen
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $Id$
 */

#include "apricot.h"
#include "Application.h"
#include "Icon.h"
#include "Popup.h"
#include "Widget.h"
#include "Window.h"
#include <Widget.inc>

#ifdef __cplusplus
extern "C" {
#endif


#undef  my
#define inherited CDrawable
#define enter_method PWidget_vmt selfvmt = ((( PWidget) self)-> self)
#define my  selfvmt
#define var (( PWidget) self)

typedef Bool ActionProc ( Handle self, Handle item, void * params);
typedef ActionProc *PActionProc;
#define his (( PWidget) child)

/* local defines */
typedef struct _SingleColor
{
   Color color;
   int   index;
} SingleColor, *PSingleColor;

static Bool find_dup_msg( PEvent event, int * cmd);
static Bool pquery ( Handle window, Handle self, void * v);
static Bool get_top_current( Handle self);
static Bool sptr( Handle window, Handle self, void * v);
static Handle find_tabfoc( Handle self);
static Bool showhint_notify ( Handle self, Handle child, void * data);
static Bool hint_notify ( Handle self, Handle child, SV * hint);

extern void Widget_pack_slaves( Handle self); 
extern void Widget_place_slaves( Handle self); 
extern Bool Widget_size_notify( Handle self, Handle child, const Rect* metrix);
extern Bool Widget_move_notify( Handle self, Handle child, Point * moveTo);

/* init, done & update_sys_handle */
void
Widget_init( Handle self, HV * profile)
{
   dPROFILE;
   enter_method;
   SV * sv;

   inherited-> init( self, profile);

   list_create( &var-> widgets, 0, 8);
   var-> tabOrder = -1;

   var-> geomInfo. side = 3; /* default pack side is 'top', anchor ='center' */
   var-> geomInfo. anchorx = var-> geomInfo. anchory = 1;

   my-> update_sys_handle( self, profile);
   /* props init */
   /* font and colors */
   SvHV_Font( pget_sv( font), &Font_buffer, "Widget::init");
   my-> set_widgetClass        ( self, pget_i( widgetClass  ));
   my-> set_color              ( self, pget_i( color        ));
   my-> set_backColor          ( self, pget_i( backColor    ));
   my-> set_font               ( self, Font_buffer);
   opt_assign( optOwnerBackColor, pget_B( ownerBackColor));
   opt_assign( optOwnerColor    , pget_B( ownerColor));
   opt_assign( optOwnerFont     , pget_B( ownerFont));
   opt_assign( optOwnerHint     , pget_B( ownerHint));
   opt_assign( optOwnerShowHint , pget_B( ownerShowHint));
   opt_assign( optOwnerPalette  , pget_B( ownerPalette));
   my-> colorIndex( self, true,  ciHiliteText,   pget_i( hiliteColor)      );
   my-> colorIndex( self, true,  ciHilite,       pget_i( hiliteBackColor)  );
   my-> colorIndex( self, true,  ciDisabledText, pget_i( disabledColor)    );
   my-> colorIndex( self, true,  ciDisabled,     pget_i( disabledBackColor));
   my-> colorIndex( self, true,  ciLight3DColor, pget_i( light3DColor)     );
   my-> colorIndex( self, true,  ciDark3DColor,  pget_i( dark3DColor)      );
   my-> set_palette( self, pget_sv( palette));

   /* light props */
   my-> set_autoEnableChildren ( self, pget_B( autoEnableChildren));
   my-> set_briefKeys          ( self, pget_B( briefKeys));
   my-> set_buffered           ( self, pget_B( buffered));
   my-> set_cursorVisible      ( self, pget_B( cursorVisible));
   my-> set_growMode           ( self, pget_i( growMode));
   my-> set_helpContext        ( self, pget_sv( helpContext));
   my-> set_hint               ( self, pget_sv( hint));
   my-> set_firstClick         ( self, pget_B( firstClick));
   {
      Point hotSpot;
      Handle icon = pget_H( pointerIcon);
      prima_read_point( pget_sv( pointerHotSpot), (int*)&hotSpot, 2, "Array panic on 'pointerHotSpot'");
      if ( icon != nilHandle && !kind_of( icon, CIcon)) {
         warn("Illegal object reference passed to Widget::pointerIcon");
         icon = nilHandle;
      }
      apc_pointer_set_user( self, icon, hotSpot);
   }
   my-> set_pointerType        ( self, pget_i( pointerType));
   my-> set_selectingButtons   ( self, pget_i( selectingButtons));
   my-> set_selectable         ( self, pget_B( selectable));
   my-> set_showHint           ( self, pget_B( showHint));
   my-> set_tabOrder           ( self, pget_i( tabOrder));
   my-> set_tabStop            ( self, pget_i( tabStop));
   my-> set_text               ( self, pget_sv( text));

   opt_assign( optScaleChildren, pget_B( scaleChildren));

   /* subcomponents props */
   my-> popupColorIndex( self, true, ciFore,         pget_i( popupColor)              );
   my-> popupColorIndex( self, true, ciBack,         pget_i( popupBackColor)          );
   my-> popupColorIndex( self, true, ciHiliteText,   pget_i( popupHiliteColor)        );
   my-> popupColorIndex( self, true, ciHilite,       pget_i( popupHiliteBackColor)    );
   my-> popupColorIndex( self, true, ciDisabledText, pget_i( popupDisabledColor)      );
   my-> popupColorIndex( self, true, ciDisabled,     pget_i( popupDisabledBackColor)  );
   my-> popupColorIndex( self, true, ciLight3DColor, pget_i( popupLight3DColor)       );
   my-> popupColorIndex( self, true, ciDark3DColor,  pget_i( popupDark3DColor)        );
   SvHV_Font( pget_sv( popupFont), &Font_buffer, "Widget::init");
   my-> set_popup_font  ( self, Font_buffer);
   if ( SvTYPE( sv = pget_sv( popupItems)) != SVt_NULL)
      my-> set_popupItems( self, sv);
   if ( SvTYPE( sv = pget_sv( accelItems)) != SVt_NULL)
      my-> set_accelItems( self, sv);

   /* size, position, enabling, visibliity etc. runtime */
   {
      Point set, set2;
      AV * av;
      SV ** holder;
      NPoint ds = {1,1};

      prima_read_point( pget_sv( sizeMin), (int*)&set, 2, "Array panic on 'sizeMin'");
      prima_read_point( pget_sv( sizeMax), (int*)&set2, 2, "Array panic on 'sizeMax'");
      var-> sizeMax = set2;
      my-> set_sizeMin( self, set);
      my-> set_sizeMax( self, set2);
      prima_read_point( pget_sv( cursorSize), (int*)&set, 2, "Array panic on 'cursorSize'");
      my-> set_cursorSize( self, set);
      prima_read_point( pget_sv( cursorPos), (int*)&set, 2, "Array panic on 'cursorPos'");
      my-> set_cursorPos( self, set);

      av = ( AV *) SvRV( pget_sv( designScale));
      holder = av_fetch( av, 0, 0);
      ds. x = holder ? SvNV( *holder) : 1;
      if ( !holder) warn("Array panic on 'designScale'");
      holder = av_fetch( av, 1, 0);
      ds. y = holder ? SvNV( *holder) : 1;
      if ( !holder) warn("Array panic on 'designScale'");
      my-> set_designScale( self, ds);
   }
   my-> set_enabled     ( self, pget_B( enabled));
   if ( !pexist( originDontCare) || !pget_B( originDontCare)) {
      Point pos;
      pos. x = pget_i( left);
      pos. y = pget_i( bottom);
      my-> set_origin( self, pos);
   } else
      var-> pos = my-> get_origin( self);

   if ( !pexist( sizeDontCare  ) || !pget_B( sizeDontCare  )) {
      Point size;
      size. x = pget_i( width);
      size. y = pget_i( height);
      my-> set_size( self, size);
   } else
      var-> virtualSize = my-> get_size( self);
   var-> geomSize = var-> virtualSize;

   {
      Bool x = 0, y = 0;
      if ( pget_B( centered)) { x = 1; y = 1; };
      if ( pget_B( x_centered) || ( var-> growMode & gmXCenter)) x = 1;
      if ( pget_B( y_centered) || ( var-> growMode & gmYCenter)) y = 1;
      if ( x || y) my-> set_centered( self, x, y);
   }

   opt_assign( optPackPropagate, pget_B( packPropagate));
   my-> set_packInfo( self, pget_sv( packInfo));
   my-> set_placeInfo( self, pget_sv( placeInfo));
   my-> set_geometry( self, pget_i( geometry));
   
   my-> set_shape       ( self, pget_H(  shape));
   my-> set_visible     ( self, pget_B( visible));
   if ( pget_B( capture)) my-> set_capture( self, 1, nilHandle);
   if ( pget_B( current)) my-> set_current( self, 1);
   CORE_INIT_TRANSIENT(Widget);

   {
      SV * widgets = pget_sv( widgets);
      if ( SvTYPE( widgets) != SVt_NULL) {
           dSP;
           ENTER;
           SAVETMPS;
           PUSHMARK( sp);
           XPUSHs( var-> mate);
           XPUSHs( sv_2mortal( newSVsv( widgets)));
           PUTBACK;
           perl_call_method( "widgets", G_DISCARD);
           SPAGAIN;
           PUTBACK;
           FREETMPS;
           LEAVE;
      }
   }
}


void
Widget_update_sys_handle( Handle self, HV * profile)
{
   dPROFILE;
   enter_method;
   Handle    owner;
   Bool      clipOwner;
   ApiHandle parentHandle;
   if (!(
       pexist( owner) ||
       pexist( syncPaint) ||
       pexist( clipOwner) ||
       pexist( transparent)
    )) return;
   
   owner        = pexist( owner)        ? pget_H( owner)        : var-> owner;
   clipOwner    = pexist( clipOwner)    ? pget_B( clipOwner)    : my-> get_clipOwner( self);
   parentHandle = pexist( parentHandle) ? pget_i( parentHandle) : apc_widget_get_parent_handle( self);

   if ( parentHandle) {
      if (( owner != application) && clipOwner) 
         croak("Cannot accept 'parentHandle' for non-application child and clip-owner widget");
   }
   
   if ( !apc_widget_create( self,
      owner,
      pexist( syncPaint)  ? pget_B( syncPaint)  : my-> get_syncPaint( self),
      clipOwner,
      pexist( transparent) ? pget_B( transparent): my-> get_transparent( self),
      parentHandle
   ))
     croak( "Cannot create widget");
   pdelete( transparent);
   pdelete( syncPaint);
   pdelete( clipOwner);
   pdelete( parentHandle);
}

void
Widget_done( Handle self)
{
   free( var-> text);
   var-> text = nil;
   apc_widget_destroy( self);
   free( var-> helpContext);
   free( var-> hint);
   var-> helpContext = nil;
   var-> hint = nil;

   if ( var-> owner) {
      Handle * enum_lists = PWidget( var-> owner)-> enum_lists;
      while ( enum_lists) {
         unsigned int i, count;
	 count = (unsigned int) enum_lists[1];
	 for ( i = 2; i < count + 2; i++) {
	    if ( self == enum_lists[i]) 
	       enum_lists[i] = nilHandle;
	 }
         enum_lists = ( Handle*) enum_lists[0];
      }
   }

   list_destroy( &var-> widgets);
   inherited-> done( self);
}

/* ::a */
void
Widget_attach( Handle self, Handle objectHandle)
{
   if ( objectHandle == nilHandle) return;
   if ( var-> stage > csNormal) return;
   if ( kind_of( objectHandle, CWidget)) {
      if ( list_index_of( &var-> widgets, objectHandle) >= 0) {
         warn( "Object attach failed");
         return;
      }
      list_add( &var-> widgets, objectHandle);
   }
   inherited-> attach( self, objectHandle);
}

/*::b */
Bool
Widget_begin_paint( Handle self)
{
   Bool ok;
   if ( !inherited-> begin_paint( self))
      return false;
   if ( !( ok = apc_widget_begin_paint( self, false))) {
      inherited-> end_paint( self);
      perl_error();
   }
   return ok;
}

Bool
Widget_begin_paint_info( Handle self)
{
   Bool ok;
   if ( is_opt( optInDraw))     return true;
   if ( !inherited-> begin_paint_info( self))
      return false;
   if ( !( ok = apc_widget_begin_paint_info( self))) {
      inherited-> end_paint_info( self);
      perl_error();
   }
   return ok;
}


void
Widget_bring_to_front( Handle self)
{
   if ( opt_InPaint) return;
   apc_widget_set_z_order( self, nilHandle, true);
}

/*::c */
Bool
Widget_can_close( Handle self)
{
   enter_method;
   Event ev = { cmClose};
   return ( var-> stage <= csNormal) ? my-> message( self, &ev) : true;
}

void
Widget_cleanup( Handle self)
{
   Handle ptr;
   enter_method;

   /* disconnect all geometry slaves */
   ptr = var-> packSlaves;
   while ( ptr) {
      PWidget( ptr)-> geometry = gtDefault;
      ptr = PWidget( ptr)-> geomInfo. next;
   }
   var-> packSlaves = nilHandle;
   ptr = var-> placeSlaves;
   while ( ptr) {
      PWidget( ptr)-> geometry = gtDefault;
      ptr = PWidget( ptr)-> geomInfo. next;
   }
   var-> placeSlaves = nilHandle;
   
   my-> set_geometry( self, gtDefault);
   
   if ( application && (( PApplication) application)-> hintUnder == self)
      my-> set_hintVisible( self, 0);

   {
      int i;
      for ( i = 0; i < var-> widgets. count; i++)
         Object_destroy( var-> widgets. items[i]);
   }

   my-> detach( self, var-> accelTable, true);
   var-> accelTable = nilHandle;

   my-> detach( self, var-> popupMenu, true);
   var-> popupMenu = nilHandle;

   inherited-> cleanup( self);
}


Bool
Widget_close( Handle self)
{
   Bool canClose;
   enter_method;
   if ( var-> stage > csNormal) return true;
   if (( canClose = my-> can_close( self))) {
      Object_destroy( self);
   }
   return canClose;
}

Bool
Widget_custom_paint( Handle self)
{
   PList  list;
   void * ret;
   enter_method;
   if ( my-> on_paint != Widget_on_paint) return true;
   if ( var-> eventIDs == nil) return false;
   ret = hash_fetch( var-> eventIDs, "Paint", 5);
   if ( ret == nil) return false;
   list = var-> events + PTR2UV( ret) - 1;
   return list-> count > 0;
}

/*::d */
void
Widget_detach( Handle self, Handle objectHandle, Bool kill)
{
   enter_method;
   if ( kind_of( objectHandle, CWidget)) {
      list_delete( &var-> widgets, objectHandle);
      if ( var-> currentWidget == objectHandle && objectHandle != nilHandle)
          my-> set_currentWidget( self, nilHandle);
   }
   inherited-> detach( self, objectHandle, kill);
}

/*::e */
void
Widget_end_paint( Handle self)
{
  if ( !is_opt( optInDraw)) return;
  apc_widget_end_paint( self);
  inherited-> end_paint( self);
}

void
Widget_end_paint_info( Handle self)
{
  if ( !is_opt( optInDrawInfo)) return;
  apc_widget_end_paint_info( self);
  inherited-> end_paint_info( self);
}


/*::f */

SV*
Widget_fetch_resource( char *className, char *name, char *classRes, char *res, Handle owner, int resType)
{
   char *str = nil;
   Color clr;
   void *parm;
   Font font;
   SV * ret = nilSV;
   char *r_className, *r_name, *r_classRes, *r_res;

   switch ( resType) {
   case frColor:
      parm = &clr; break;
   case frFont:
      parm = &font;
      bzero( &font, sizeof( font));
      break;
   default:
      parm = &str;
      resType = frString;
   }

   r_className = duplicate_string(className);
   r_name      = duplicate_string(name);
   r_classRes  = duplicate_string(classRes);
   r_res       = duplicate_string(res);

   if ( !apc_fetch_resource(
      prima_normalize_resource_string( r_className, true),
      prima_normalize_resource_string( r_name, false),
      prima_normalize_resource_string( r_classRes, true),
      prima_normalize_resource_string( r_res, false),
      owner, resType, parm))
      goto FAIL;

   switch ( resType) {
   case frColor:
      ret = newSViv( clr);
      break;
   case frFont:
      ret = sv_Font2HV( &font);
      break;
   default:
      ret = str ? newSVpv( str, 0) : nilSV;
      free( str);
   }

FAIL:
   free(r_className);
   free(r_name);
   free(r_classRes);
   free(r_res);

   return ret;
}

Handle
Widget_first( Handle self)
{
   return apc_widget_get_z_order( self, zoFirst);
}

Handle
Widget_first_that( Handle self, void * actionProc, void * params)
{
   Handle child  = nilHandle;
   int i, count  = var-> widgets. count;
   Handle * list;
   if ( actionProc == nil || count == 0) return nilHandle;
   if (!(list = allocn( Handle, count + 2))) return nilHandle;

   list[0] = (Handle)( var-> enum_lists);
   list[1] = (Handle)( count);
   var-> enum_lists = list;
   memcpy( list + 2, var-> widgets. items, sizeof( Handle) * count);

   for ( i = 2; i < count + 2; i++)
   {
      if ( list[i] && (( PActionProc) actionProc)( self, list[ i], params))
      {
         child = list[ i];
         break;
      }
   }
   var-> enum_lists = (Handle*)(*list);
   free( list);
   return child;
}

/*::g */

/*::h */

void Widget_handle_event( Handle self, PEvent event)
{
   enter_method;
#define evOK ( var-> evStack[ var-> evPtr - 1])
#define objCheck if ( var-> stage > csNormal) return
   inherited-> handle_event ( self, event);
   objCheck;
   switch ( event-> cmd)
   {
      case cmCalcBounds:
        {
           Point min, max;
           min = var-> sizeMin;
           max = var-> sizeMax;
           if (( min. x > 0) && ( min. x > event-> gen. R. right  )) event-> gen. R. right  = min. x;
           if (( min. y > 0) && ( min. y > event-> gen. R. top    )) event-> gen. R. top    = min. y;
           if (( max. x > 0) && ( max. x < event-> gen. R. right  )) event-> gen. R. right  = max. x;
           if (( max. y > 0) && ( max. y < event-> gen. R. top    )) event-> gen. R. top    = max. y;
        }
        break;
      case cmSetup:
        if ( !is_opt( optSetupComplete)) {
           opt_set( optSetupComplete);
           my-> notify( self, "<s", "Setup");
        }
        break;
      case cmRepaint:
        my-> repaint( self);
        break;
      case cmPaint        :
        if ( !opt_InPaint && !my-> get_locked( self))
          if ( inherited-> begin_paint( self)) {
             if ( apc_widget_begin_paint( self, true)) {
                my-> notify( self, "<sH", "Paint", self);
                objCheck;
                apc_widget_end_paint( self);
                inherited-> end_paint( self);
             } else
                inherited-> end_paint( self);
          }
        break;
      case cmEnable       :
        my-> notify( self, "<s", "Enable");
        break;
      case cmDisable      :
        my-> notify( self, "<s", "Disable");
        break;
      case cmReceiveFocus :
        my-> notify( self, "<s", "Enter");
        break;
      case cmReleaseFocus :
        my-> notify( self, "<s", "Leave");
        break;
      case cmShow         :
        my-> notify( self, "<s", "Show");
        break;
      case cmHide         :
        my-> notify( self, "<s", "Hide");
        break;
      case cmHint:
        my-> notify( self, "<si", "Hint", event-> gen. B);
        break;
      case cmClose        :
        if ( my-> first_that( self, (void*)pquery, nil)) {
           my-> clear_event( self);
           return;
        }
        objCheck;
        my-> notify( self, "<s", "Close");
        break;
      case cmZOrderChanged:
        my-> notify( self, "<s", "ZOrderChanged");
        break;
      case cmClick:
        my-> notify( self, "<s", "Click");
        break;
      case cmColorChanged:
        if ( !kind_of( event-> gen. source, CPopup))
            my-> notify( self, "<si", "ColorChanged", event-> gen. i);
        else
            var-> popupColor[ event-> gen. i] =
               apc_menu_get_color( event-> gen. source, event-> gen. i);
        break;
      case cmFontChanged:
        if ( !kind_of( event-> gen. source, CPopup))
           my-> notify( self, "<s", "FontChanged");
        else
           apc_menu_get_font( event-> gen. source, &var-> popupFont);
        break;
      case cmMenu:
	 if ( event-> gen. H) {
	     char buffer[16], *context;
             context = ((( PAbstractMenu) event-> gen. H)-> self)-> make_id_context( event-> gen. H, event-> gen. i, buffer);
             my-> notify( self, "<sHs", "Menu", event-> gen. H, context);
	 }
         break;
      case cmMouseClick:
         my-> notify( self, "<siiPi", "MouseClick",
            event-> pos. button, event-> pos. mod, event -> pos. where, event-> pos. dblclk);
         break;
      case cmMouseDown:
         if ((( PApplication) application)-> hintUnder == self)
            my-> set_hintVisible( self, 0);
         objCheck;
         if (((event-> pos. button & var-> selectingButtons) != 0) && my-> get_selectable( self))
            my-> set_selected( self, true);
         objCheck;
         my-> notify( self, "<siiP", "MouseDown",
            event-> pos. button, event-> pos. mod, event -> pos. where);
         break;
      case cmMouseUp:
        my-> notify( self, "<siiP", "MouseUp",
            event-> pos. button, event-> pos. mod, event -> pos. where);
        break;
      case cmMouseMove:
        if ((( PApplication) application)-> hintUnder == self)
           my-> set_hintVisible( self, -1);
        objCheck;
        my-> notify( self, "<siP", "MouseMove", event-> pos. mod, event -> pos. where);
        break;
      case cmMouseWheel:
        my-> notify( self, "<siPi", "MouseWheel",
           event-> pos. mod, event -> pos. where,
           event-> pos. button); /* +n*delta == up, -n*delta == down */
        break;
      case cmMouseEnter:
        my-> notify( self, "<siP", "MouseEnter", event-> pos. mod, event -> pos. where);
        objCheck;
        if ( application && is_opt( optShowHint) && ((( PApplication) application)-> options. optShowHint) && var-> hint[0])
        {
           PApplication app = ( PApplication) application;
           app-> self-> set_hint_action( application, self, true, true);
        }
        break;
      case cmMouseLeave:
        if ( application && is_opt( optShowHint)) {
           PApplication app = ( PApplication) application;
           app-> self-> set_hint_action( application, self, false, true);
        }
        my-> notify( self, "<s", "MouseLeave");
        break;
      case cmKeyDown:
        {
           int i;
           int rep = event-> key. repeat;
           if ( is_opt( optBriefKeys))
              rep = 1;
           else
              event-> key. repeat = 1;
           for ( i = 0; i < rep; i++) {
              my-> notify( self, "<siiii", "KeyDown",
                  event-> key.code, event-> key. key, event-> key. mod, event-> key. repeat);
              objCheck;
              if ( evOK) {
                 Event ev = *event;
                 ev. key. source = self;
                 ev. cmd         = var-> owner ? cmDelegateKey : cmTranslateAccel;
                 ev. key. subcmd = 0;
                 if ( !my-> message( self, &ev)) {
                    my-> clear_event( self);
                    return;
                 }
                 objCheck;
              }
              if ( !evOK) break;

              {
                  Handle next = nilHandle;
                  switch( event-> key. key) {
                  case kbF1:
                  case kbHelp:
                     my-> help( self);
                     my-> clear_event( self);
                     return;
                  case kbLeft: 
                     next = my-> next_positional( self, -1, 0);
                     break;
                  case kbRight: 
                     next = my-> next_positional( self, 1, 0);
                     break;
                  case kbUp: 
                     next = my-> next_positional( self, 0, 1);
                     break;
                  case kbDown: 
                     next = my-> next_positional( self, 0, -1);
                     break;
                  case kbTab:
                     next = my-> next_tab( self, true);
                     break;
                  case kbBackTab:
                     next = my-> next_tab( self, false);
                     break;
                  default:;   
                  }   
                  if ( next) {
                     CWidget( next)-> set_selected( next, true);
                     objCheck;
                     my-> clear_event( self);
                     return;
                  }
              }   
           }
        }
        break;
      case cmDelegateKey:
        switch ( event-> key. subcmd)
        {
           case 0: {
              Event ev = *event;
              ev. cmd         = cmTranslateAccel;
              if ( !my-> message( self, &ev)) {
                 my-> clear_event( self);
                 return;
              }
              objCheck;

              if ( my-> first_that( self, (void*)accel_notify, &ev)) {
                 my-> clear_event( self);
                 return;
              }
              objCheck;
              ev. cmd         = cmDelegateKey;
              ev. key. subcmd = 1;
              if ( my-> first_that( self, (void*)accel_notify, &ev)) {
                 my-> clear_event( self);
                 return;
              }
              if ( var-> owner)
              {
                 if ( var-> owner == application)
                    ev. cmd = cmTranslateAccel;
                 else
                    ev. key. subcmd = 0;
                 ev. key. source = self;
                 if (!(((( PWidget) var-> owner)-> self)-> message( var-> owner, &ev))) {
                    objCheck;
                    my-> clear_event( self);
                    return;
                 }
              }
           }
           break;
           case 1: {
              Event ev = *event;
              ev. cmd  = cmTranslateAccel;
              if ( my-> first_that( self, (void*)accel_notify, &ev)) {
                 my-> clear_event( self);
                 return;
              }
              objCheck;
              ev = *event;
              if ( my-> first_that( self, (void*)accel_notify, &ev)) {
                 my-> clear_event( self);
                 return;
              }
           }
           break;
        }
        break;
      case cmTranslateAccel:
        {
           int key = CAbstractMenu-> translate_key( nilHandle, event-> key. code, event-> key. key, event-> key. mod);
           if ( my-> first_that_component( self, (void*)find_accel, &key)) {
              my-> clear_event( self);
              return;
           }
           objCheck;
        }
        my-> notify( self, "<siii", "TranslateAccel",
            event-> key.code, event-> key. key, event-> key. mod);
        break;
      case cmKeyUp:
        my-> notify( self, "<siii", "KeyUp",
           event-> key.code, event-> key. key, event-> key. mod);
        break;
      case cmMenuCmd:
        if ( event-> gen. source)
           ((( PAbstractMenu) event-> gen. source)-> self)-> sub_call_id( event-> gen. source, event-> gen. i);
        break;
      case cmMove:
         {
            Bool doNotify = false;
            Point oldP;
            if ( var-> stage == csNormal && var-> evQueue == nil) {
               doNotify = true;
            } else if ( var-> stage > csNormal) {
               break;
            } else if ( var-> evQueue != nil) {
              int i = list_first_that( var-> evQueue, (void*)find_dup_msg, &event-> cmd);
              PEvent n;
              if ( i < 0) {
                 if ( !( n = alloc1( Event))) goto MOVE_EVENT;
                 memcpy( n, event, sizeof( Event));
                 n-> gen. B = 1;
                 n-> gen. R. left = n-> gen. R. bottom = 0;
                 list_add( var-> evQueue, ( Handle) n);
              } else
                 n = ( PEvent) list_at( var-> evQueue, i);
              n-> gen. P = event-> gen. P;
            }
          MOVE_EVENT:;
            if ( !event-> gen. B)
               my-> first_that( self, (void*) Widget_move_notify, &event-> gen. P);
            if ( doNotify) oldP = var-> pos;
            var-> pos = event-> gen. P;
            if ( doNotify && 
                 (oldP. x != event-> gen. P. x || 
                  oldP. y != event-> gen. P. y)) {
               my-> notify( self, "<sPP", "Move", oldP, event-> gen. P);
               objCheck;
               if ( var-> growMode & gmCenter) 
                  my-> set_centered( self, var-> growMode & gmXCenter, var-> growMode & gmYCenter);
            }
         }
        break;
      case cmPopup:
        {
           Handle org = self;
           my-> notify( self, "<siP", "Popup", event-> gen. B, event-> gen. P. x, event-> gen. P. y);
           objCheck;
           if ( evOK) {
              while ( self) {
                 PPopup p = ( PPopup) CWidget( self)-> get_popup( self);
                 if ( p && p-> self-> get_autoPopup(( Handle) p)) {
                    Point px = event-> gen. P;
                    apc_widget_map_points( org,  true,  1, &px);
                    apc_widget_map_points( self, false, 1, &px);
                    p-> self-> popup(( Handle) p, px. x, px. y ,0,0,0,0);
                    CWidget( org)-> clear_event( org);
                    return;
                 }
                 self = var-> owner;
              }
           }
        }
        break;
      case cmSize:
        /* expecting new size in P, old & new size in R. */
        {
           Bool doNotify = false;
           if ( var-> stage == csNormal && var-> evQueue == nil) {
              doNotify = true;
           } else if ( var-> stage > csNormal) {
              break;
           } else if ( var-> evQueue != nil) {
              int i = list_first_that( var-> evQueue, (void*)find_dup_msg, &event-> cmd);
              PEvent n;
              if ( i < 0) {
                 if ( !( n = alloc1( Event))) goto SIZE_EVENT;
                 memcpy( n, event, sizeof( Event));
                 n-> gen. B = 1;
                 n-> gen. R. left = n-> gen. R. bottom = 0;
                 list_add( var-> evQueue, ( Handle) n);
              } else
                 n = ( PEvent) list_at( var-> evQueue, i);
              n-> gen. P. x = n-> gen. R. right  = event-> gen. P. x;
              n-> gen. P. y = n-> gen. R. top    = event-> gen. P. y;
           }
        SIZE_EVENT:;  
           if ( var-> growMode & gmCenter) 
               my-> set_centered( self, var-> growMode & gmXCenter, var-> growMode & gmYCenter);
           if ( !event-> gen. B)
               my-> first_that( self, (void*) Widget_size_notify, &event-> gen. R);
           if ( doNotify) {
              Point oldSize;
              oldSize. x = event-> gen. R. left;
              oldSize. y = event-> gen. R. bottom;
              my-> notify( self, "<sPP", "Size", oldSize, event-> gen. P);
           }
           Widget_pack_slaves( self);
           Widget_place_slaves( self);
        }
        break;
   }
}

void
Widget_hide( Handle self)
{
   enter_method;
   my-> set_visible( self, false);
}

void
Widget_hide_cursor( Handle self)
{
   enter_method;
   if ( my-> get_cursorVisible( self))
      my-> set_cursorVisible( self, false);
   else
      var-> cursorLock++;
}

/*::i */
void
Widget_insert_behind ( Handle self, Handle widget)
{
   apc_widget_set_z_order( self, widget, 0);
}

void
Widget_invalidate_rect( Handle self, Rect rect)
{
   enter_method;
   if ( !opt_InPaint && ( var-> stage == csNormal) && !my-> get_locked( self))
      apc_widget_invalidate_rect( self, &rect);
}


Bool
Widget_is_child( Handle self, Handle owner)
{
   if ( !owner)
      return false;
   while ( self) {
      if ( self == owner)
         return true;
      self = var-> owner;
   }
   return false;
}

/*::j */
/*::k */
void
Widget_key_event( Handle self, int command, int code, int key, int mod, int repeat, Bool post)
{
   Event ev;
   if ( command != cmKeyDown && command != cmKeyUp) return;
   memset( &ev, 0, sizeof( ev));
   if ( repeat <= 0) repeat = 1;
   ev. cmd = command;
   ev. key. code   = code;
   ev. key. key    = key;
   ev. key. mod    = mod;
   ev. key. repeat = repeat;
   apc_message( self, &ev, post);
}

/*::l */
Handle
Widget_last( Handle self)
{
   return apc_widget_get_z_order( self, zoLast);
}

Bool
Widget_lock( Handle self)
{
   var-> lockCount++;
   return true;
}

/*::m */
void
Widget_mouse_event( Handle self, int command, int button, int mod, int x, int y, Bool dbl, Bool post)
{
   Event ev;
   if ( command != cmMouseDown
     && command != cmMouseUp
     && command != cmMouseClick
     && command != cmMouseMove
     && command != cmMouseWheel
     && command != cmMouseEnter
     && command != cmMouseLeave
     ) return;
   memset( &ev, 0, sizeof( ev));
   ev. cmd = command;
   ev. pos. where. x = x;
   ev. pos. where. y = y;
   ev. pos. mod    = mod;
   ev. pos. button = button;
   if ( command == cmMouseClick) ev. pos. dblclk = dbl;
   apc_message( self, &ev, post);
}

/*::n */
Handle
Widget_next( Handle self)
{
   return apc_widget_get_z_order( self, zoNext);
}

static void 
fill_tab_candidates( PList list, Handle level)
{
   int i;
   PList w = &(PWidget( level)-> widgets);
   for ( i = 0; i < w-> count; i++) {
      Handle x = w-> items[i];
      if ( CWidget( x)-> get_visible( x) && CWidget( x)-> get_enabled( x)) {
         if ( CWidget( x)-> get_selectable( x) && CWidget( x)-> get_tabStop( x))
            list_add( list, x);
         fill_tab_candidates( list, x);
      }
   }   
}

Handle 
Widget_next_positional( Handle self, int dx, int dy)
{
   Handle horizon = self;
   
   int i, maxDiff = INT_MAX;
   Handle max = nilHandle;
   List candidates;
   Point p[2];
   
   int minor[2], major[2], axis, extraDiff, ir[4];

   /*
      In order to compute positional difference, using four penalties.
      To simplify algorithm, Rect will be translated to int[4] and
      minor, major and extraDiff assigned to array indices for those 
      steps - minor for first and third, major for second and extraDiff for last one.
    */
   
   axis = ( dx == 0) ? dy : dx;
   minor[0] = ( dx == 0) ? 0 : 1;
   minor[1] = minor[0] + 2;
   extraDiff = major[(axis < 0) ? 0 : 1] = ( dx == 0) ? 1 : 0;
   major[(axis < 0) ? 1 : 0] = extraDiff + 2;
   extraDiff = ( dx == 0) ? (( axis < 0) ? 0 : 2) : (( axis < 0) ? 1 : 3);
   
   while ( PWidget( horizon)-> owner) {
      if (
          ( PWidget( horizon)-> options. optSystemSelectable) || /* fast check for CWindow */
          ( PWidget( horizon)-> options. optModalHorizon) 
         ) break; 
      horizon = PWidget( horizon)-> owner;
   }

   if ( !CWidget( horizon)-> get_visible( horizon) ||
        !CWidget( horizon)-> get_enabled( horizon)) return nilHandle;

   list_create( &candidates, 64, 64);
   fill_tab_candidates( &candidates, horizon);
   
   p[0].x = p[0].y = 0;
   p[1] = CWidget( self)-> get_size( self);
   apc_widget_map_points( self, true, 2, p);
   apc_widget_map_points( horizon, false, 2, p);
   ir[0] = p[0].x; ir[1] = p[0].y; ir[2] = p[1].x; ir[3] = p[1].y;

   for ( i = 0; i < candidates. count; i++) {
      int    diff, ix[4];
      Handle x = candidates. items[i];

      if ( x == self) continue;
      
      p[0].x = p[0].y = 0;
      p[1] = CWidget( x)-> get_size( x);
      apc_widget_map_points( x, true, 2, p);
      apc_widget_map_points( horizon, false, 2, p);
      ix[0] = p[0].x; ix[1] = p[0].y; ix[2] = p[1].x; ix[3] = p[1].y;

      /* First step - checking if the widget is subject to comparison. It is not,
         if it's minor axis is not contiguous with self's */

      if ( ix[ minor[0]] > ir[ minor[1]] || ix[ minor[1]] < ir[ minor[0]]) 
         continue;

      /* Using x100 penalty for distance in major axis - and discarding those that 
         of different sign */
      diff = ( ix[ major[ 1]] - ir[ major[0]]) * 100 * axis;
      if ( diff < 0) 
         continue;

      /* Adding x10 penalty for incomplete minor axis congruence. Addition goes in tenths,
         in a way to not allow congruence overweight major axis distance */
      if ( ix[ minor[0]] > ir[ minor[0]])
         diff += ( ix[ minor[0]] - ir[ minor[0]]) * 100 / ( ir[ minor[1]] - ir[ minor[0]]);
      if ( ix[ minor[1]] < ir[ minor[1]])
         diff += ( ir[ minor[1]] - ix[ minor[1]]) * 100 / ( ir[ minor[1]] - ir[ minor[0]]);

      /* Adding 'distance from level' x1 penalty */
      if (( ix[ extraDiff] - ir[ extraDiff]) * axis < 0) 
         diff += abs( ix[ extraDiff] - ir[ extraDiff]);

      if ( diff < maxDiff) {
         max = x;
         maxDiff = diff;
      }   
   }   
   
   list_destroy( &candidates);

   return max;
}

static int compare_taborders_forward( const void *a, const void *b)
{
   if ((*(PWidget*) a)-> tabOrder < (*(PWidget*) b)-> tabOrder)
      return -1; else
   if ((*(PWidget*) a)-> tabOrder > (*(PWidget*) b)-> tabOrder)
      return 1; 
   else
      return 0;
}   

static int compare_taborders_backward( const void *a, const void *b)
{
   if ((*(PWidget*) a)-> tabOrder < (*(PWidget*) b)-> tabOrder)
      return 1; else
   if ((*(PWidget*) a)-> tabOrder > (*(PWidget*) b)-> tabOrder)
      return -1; 
   else
      return 0;
}   

static int
do_taborder_candidates( Handle level, Handle who, 
     int (*compareProc)(const void *, const void *), 
     int * stage, Handle * result)
{
   int i, fsel = -1;
   PList w = &(PWidget( level)-> widgets);
   Handle * ordered;

   if ( w-> count == 0) return true;
      
   ordered = ( Handle *) malloc( w-> count * sizeof( Handle));
   if ( !ordered) return true;
   
   memcpy( ordered, w-> items, w-> count * sizeof( Handle));
   qsort( ordered, w-> count, sizeof( Handle), compareProc);

   /* finding current widget in the group */
   for ( i = 0; i < w-> count; i++) {
      Handle x = ordered[i];
      if ( CWidget( x)-> get_current( x)) {
         fsel = i;
         break;
      }   
   }   
   if ( fsel < 0) fsel = 0;
   
   for ( i = 0; i < w-> count; i++) {
      int j;
      Handle x;

      j = i + fsel;
      if ( j >= w-> count) j -= w-> count;
      
      x = ordered[j];
      if ( CWidget( x)-> get_visible( x) && CWidget( x)-> get_enabled( x)) {
         if ( CWidget( x)-> get_selectable( x) && CWidget( x)-> get_tabStop( x)) {
            if ( *result == nilHandle) *result = x; 
            switch( *stage) {
            case 0: /* nothing found yet */
               if ( x == who) *stage = 1;
               break;
            default:
               /* next widget after 'who' is ours */
               *result = x;
               free( ordered);
               return false;
            }   
         }   
         if ( !do_taborder_candidates( x, who, compareProc, stage, result)) {
            free( ordered);
            return false; /* fall through */
         }   
      }
   }   
   free( ordered);
   return true;
}

Handle 
Widget_next_tab( Handle self, Bool forward)
{
   Handle horizon = self, result = nilHandle;
   int stage = 0;

   while ( PWidget( horizon)-> owner) {
      if (
          ( PWidget( horizon)-> options. optSystemSelectable) || /* fast check for CWindow */
          ( PWidget( horizon)-> options. optModalHorizon) 
         ) break; 
      horizon = PWidget( horizon)-> owner;
   }

   if ( !CWidget( horizon)-> get_visible( horizon) ||
        !CWidget( horizon)-> get_enabled( horizon)) return nilHandle;
   
   do_taborder_candidates( horizon, self, 
      forward ? compare_taborders_forward : compare_taborders_backward, 
      &stage, &result);
   if ( result == self) result = nilHandle;
   return result;
}

/*::o */
/*::p */


void
Widget_post_message( Handle self, SV * info1, SV * info2)
{
   PPostMsg p;
   Event ev = { cmPost};
   if ( var-> stage > csNormal) return;
   if (!( p = alloc1( PostMsg))) return;
   p-> info1  = newSVsv( info1);
   p-> info2  = newSVsv( info2);
   p-> h = self;
   if ( var-> postList == nil)
      var-> postList = plist_create( 8, 8);
   list_add( var-> postList, ( Handle) p);
   ev. gen. p = p;
   ev. gen. source = ev. gen. H = self;
   apc_message( self, &ev, true);
}

Handle
Widget_prev( Handle self)
{
   return apc_widget_get_z_order( self, zoPrev);
}

Bool
Widget_process_accel( Handle self, int key)
{
   enter_method;
   if ( my-> first_that_component( self, (void*)find_accel, &key)) return true;
   return kind_of( var-> owner, CWidget) ?
          ((( PWidget) var-> owner)-> self)->process_accel( var-> owner, key) : false;
}

/*::q */
/*::r */
void
Widget_repaint( Handle self)
{
   enter_method;
   if ( !opt_InPaint && ( var-> stage == csNormal) && !my-> get_locked( self))
      apc_widget_invalidate_rect( self, nil);
}

/*::s */
void
Widget_scroll( Handle self, int dx, int dy, Rect *confine, Rect *clip, Bool withChildren)
{
   enter_method;
   if ( !opt_InPaint && ( var-> stage == csNormal) && !my-> get_locked( self))
      apc_widget_scroll( self, dx, dy, confine, clip, withChildren);
}

void
Widget_scroll_REDEFINED( Handle self, int dx, int dy, Rect *confine, Rect *clip, Bool withChildren)
{
   warn("Invalid call of Widget::scroll");
}

XS( Widget_scroll_FROMPERL)
{
   dPROFILE;
   dXSARGS;
   Handle self;
   int dx, dy;
   Rect *confine = nil;
   Rect *clip = nil;
   Rect confine_rect, clip_rect;
   Bool withChildren = false;
   HV *profile;
   int rect[4];

   if ( items < 3 || (items - 3) % 2) goto invalid_usage;
   if (!( self = gimme_the_mate( ST(0)))) goto invalid_usage;
   dx = SvIV( ST(1));
   dy = SvIV( ST(2));
   profile = parse_hv( ax, sp, items, mark, 3, "Widget::scroll");
   if ( pexist( confineRect)) {
      prima_read_point( pget_sv( confineRect), rect, 4, "Array panic on 'confineRect'");
      confine = &confine_rect;
      confine-> left = rect[0];
      confine-> bottom = rect[1];
      confine-> right = rect[2];
      confine-> top = rect[3];
   }
   if ( pexist( clipRect)) {
      prima_read_point( pget_sv( clipRect), rect, 4, "Array panic on 'clipRect'");
      clip = &clip_rect;
      clip-> left = rect[0];
      clip-> bottom = rect[1];
      clip-> right = rect[2];
      clip-> top = rect[3];
   }
   if ( pexist( withChildren)) withChildren = pget_B( withChildren);
   sv_free((SV*)profile);
   Widget_scroll( self, dx, dy, confine, clip, withChildren);
   SPAGAIN;
   SP -= items;
   PUTBACK;
   XSRETURN_EMPTY;
invalid_usage:
   croak ("Invalid usage of %s", "Widget::scroll");
}

void
Widget_send_to_back( Handle self)
{
   apc_widget_set_z_order( self, nilHandle, false);
}

void
Widget_set( Handle self, HV * profile)
{
   dPROFILE;
   enter_method;
   Handle postOwner = nilHandle;
   AV *order = nil;
   int geometry = gtDefault;

   if ( pexist(__ORDER__)) order = (AV*)SvRV(pget_sv( __ORDER__));

   if ( pexist( owner)) {
      if ( !my-> validate_owner( self, &postOwner, profile))
         croak( "Illegal 'owner' reference passed to %s::%s", my-> className, "set");
      if ( postOwner != var-> owner) {
         if ( is_opt( optOwnerColor)) {
            my-> set_color( self, CWidget( postOwner)-> get_color( postOwner));
            opt_set( optOwnerColor);
         }
         if ( is_opt( optOwnerBackColor)) {
            my-> set_backColor( self, CWidget( postOwner)-> get_backColor( postOwner));
            opt_set( optOwnerBackColor);
         }
         if ( is_opt( optOwnerShowHint)) {
            Bool newSH = ( postOwner == application) ? 1 :
               CWidget( postOwner)-> get_showHint( postOwner);
            my-> set_showHint( self, newSH);
            opt_set( optOwnerShowHint);
         }
         if ( is_opt( optOwnerHint)) {
            my-> set_hint( self, CWidget( postOwner)-> get_hint( postOwner));
            opt_set( optOwnerHint);
         }
         if ( is_opt( optOwnerFont)) {
            my-> set_font ( self, CWidget( postOwner)-> get_font( postOwner));
            opt_set( optOwnerFont);
         }
      }
      if ( var-> geometry != gtDefault) {
         geometry = var-> geometry;
         my-> set_geometry( self, gtDefault);
      }
   }

   /* geometry manipulations */
   {
#define iLEFT   0      
#define iRIGHT  1
#define iTOP    2
#define iBOTTOM 3
#define iWIDTH  4
#define iHEIGHT 5
      int i, count;
      Bool exists[ 6];
      int  values[ 6];

      bzero( values, sizeof(values));
      if ( pexist( origin))
      {
         int set[2];
         if (order && !pexist(left))   av_push( order, newSVpv("left",0));
         if (order && !pexist(bottom)) av_push( order, newSVpv("bottom",0));
         prima_read_point( pget_sv( origin), set, 2, "Array panic on 'origin'");
         pset_i( left,   set[0]);
         pset_i( bottom, set[1]);
         pdelete( origin);
      }
      if ( pexist( rect))
      {
         int rect[4];
         if (order && !pexist(left)) av_push( order, newSVpv("left",0));
         if (order && !pexist(bottom)) av_push( order, newSVpv("bottom",0));
         if (order && !pexist(width)) av_push( order, newSVpv("width",0));
         if (order && !pexist(height)) av_push( order, newSVpv("height",0));
         prima_read_point( pget_sv( rect), rect, 4, "Array panic on 'rect'");
         pset_i( left,   rect[0]);
         pset_i( bottom, rect[1]);
         pset_i( width,  rect[2] - rect[0]);
         pset_i( height, rect[3] - rect[1]);
         pdelete( rect);
      }
      if ( pexist( size))
      {
         int set[2];
         if (order && !pexist(width)) av_push( order, newSVpv("width",0));
         if (order && !pexist(height)) av_push( order, newSVpv("height",0));
         prima_read_point( pget_sv( size), set, 2, "Array panic on 'size'");
         pset_i( width,  set[0]);
         pset_i( height, set[1]);
         pdelete( size);
      }

      if (( exists[ iLEFT]   = pexist( left)))    values[ iLEFT]   = pget_i( left);
      if (( exists[ iRIGHT]  = pexist( right)))   values[ iRIGHT]  = pget_i( right);
      if (( exists[ iTOP]    = pexist( top)))     values[ iTOP]    = pget_i( top);
      if (( exists[ iBOTTOM] = pexist( bottom ))) values[ iBOTTOM] = pget_i( bottom);
      if (( exists[ iWIDTH]  = pexist( width)))   values[ iWIDTH]  = pget_i( width);
      if (( exists[ iHEIGHT] = pexist( height)))  values[ iHEIGHT] = pget_i( height);

      count = 0;
      for ( i = 0; i < 6; i++) if ( exists[ i]) count++;

      if ( count > 1) {
         if ( exists[ iWIDTH] && exists[ iRIGHT] && exists[ iLEFT]) {
            exists[ iRIGHT] = 0;
            count--;
         }
         if ( exists[ iHEIGHT] && exists[ iTOP] && exists[ iBOTTOM]) {
            exists[ iTOP] = 0;
            count--;
         }
         if ( exists[ iRIGHT] && exists[ iLEFT]) {
            exists[ iWIDTH] = 1;
            values[ iWIDTH] = values[ iRIGHT] - values[ iLEFT];
            exists[ iRIGHT] = 0;
         }
         if ( exists[ iTOP] && exists[ iBOTTOM]) {
            exists[ iHEIGHT] = 1;
            values[ iHEIGHT] = values[ iTOP] - values[ iBOTTOM];
            exists[ iTOP]    = 0;
         }

         if (
              ( count == 2) &&
              (
                 ( exists[ iLEFT]  && exists[ iBOTTOM]) ||
                 ( exists[ iWIDTH] && exists[ iHEIGHT])
              )
            ) {
            Point p;
            if ( exists[ iLEFT]) {
               p. x = values[ iLEFT];
               p. y = values[ iBOTTOM];
               my-> set_origin( self, p);
            } else {
               p. x = values[ iWIDTH];
               p. y = values[ iHEIGHT];
               my-> set_size( self, p);
            }
         } else {
            Rect r;
            if ( !exists[ iWIDTH] || !exists[ iHEIGHT]) {
               Point sz;
               sz = my-> get_size( self);
               if ( !exists[ iWIDTH])  values[ iWIDTH]  = sz. x;
               if ( !exists[ iHEIGHT]) values[ iHEIGHT] = sz. y;
               exists[ iWIDTH] = exists[ iHEIGHT] = 1; 
            }
            if ( ( !exists[ iLEFT]   && !exists[ iRIGHT]) ||
                 ( !exists[ iBOTTOM] && !exists[ iTOP])) {
               Point pos;
               pos = my-> get_origin( self);
               if ( !exists[ iLEFT])   values[ iLEFT]   = pos. x;
               if ( !exists[ iBOTTOM]) values[ iBOTTOM] = pos. y;
               exists[ iLEFT] = exists[ iBOTTOM] = 1; 
            }
            if ( !exists[ iLEFT]) {
               exists[ iLEFT] = 1;
               values[ iLEFT] = values[ iRIGHT] - values[ iWIDTH];
            }
            if ( !exists[ iBOTTOM]) {
               exists[ iBOTTOM] = 1;
               values[ iBOTTOM] = values[ iTOP] - values[ iHEIGHT];
            }
            r. left   = values[ iLEFT];
            r. bottom = values[ iBOTTOM];
            r. right  = values[ iLEFT] + values[ iWIDTH];
            r. top    = values[ iBOTTOM] + values[ iHEIGHT];
            my-> set_rect( self, r);
         }
         pdelete( left);
         pdelete( right);
         pdelete( top);
         pdelete( bottom);
         pdelete( width);
         pdelete( height);
      } /* count > 1 */
   }
   if ( pexist( popupFont))
   {
      SvHV_Font( pget_sv( popupFont), &Font_buffer, "Widget::set");
      my-> set_popup_font( self, Font_buffer);
      pdelete( popupFont);
   }
   if ( pexist( pointerIcon) && pexist( pointerHotSpot))
   {
      Point hotSpot;
      Handle icon = pget_H( pointerIcon);
      prima_read_point( pget_sv( pointerHotSpot), (int*)&hotSpot, 2, "Array panic on 'pointerHotSpot'");
      if ( icon != nilHandle && !kind_of( icon, CIcon)) {
         warn("Illegal object reference passed to Widget.set_pointer_icon");
         icon = nilHandle;
      }
      apc_pointer_set_user( self, icon, hotSpot);
      if ( var-> pointerType == crUser) my-> first_that( self, (void*)sptr, nil);
      pdelete( pointerIcon);
      pdelete( pointerHotSpot);
   }
   if ( pexist( designScale))
   {
      AV * av = ( AV *) SvRV( pget_sv( designScale));
      SV ** holder = av_fetch( av, 0, 0);
      NPoint ds = {1,1};
      ds. x = holder ? SvNV( *holder) : 1;
      if ( !holder) warn("Array panic on 'designScale'");
      holder = av_fetch( av, 1, 0);
      ds. y = holder ? SvNV( *holder) : 1;
      if ( !holder) warn("Array panic on 'designScale'");
      my-> set_designScale( self, ds);
      pdelete( designScale);
   }
   if ( pexist( sizeMin)) {
      Point set;
      prima_read_point( pget_sv( sizeMin), (int*)&set, 2, "Array panic on 'sizeMin'");
      my-> set_sizeMin( self, set);
      pdelete( sizeMin);
   }
   if ( pexist( sizeMax)) {
      Point set;
      prima_read_point( pget_sv( sizeMax), (int*)&set, 2, "Array panic on 'sizeMax'");
      my-> set_sizeMax( self, set);
      pdelete( sizeMax);
   }
   if ( pexist( cursorSize)) {
      Point set;
      prima_read_point( pget_sv( cursorSize), (int*)&set, 2, "Array panic on 'cursorSize'");
      my-> set_cursorSize( self, set);
      pdelete( cursorSize);
   }
   if ( pexist( cursorPos)) {
      Point set;
      prima_read_point( pget_sv( cursorPos), (int*)&set, 2, "Array panic on 'cursorPos'");
      my-> set_cursorPos( self, set);
      pdelete( cursorPos);
   }
   if ( pexist( geomSize))
   {
      Point set;
      prima_read_point( pget_sv( geomSize), (int*)&set, 2, "Array panic on 'geomSize'");
      my-> set_geomSize( self, set);
      pdelete( geomSize);
   }

   inherited-> set( self, profile);
   if ( postOwner) {
      my-> set_tabOrder( self, var-> tabOrder);
      my-> set_geometry( self, geometry);
   }
}

void
Widget_setup( Handle self)
{
   enter_method;
   if ( get_top_current( self) &&
        my-> get_enabled( self) &&
        my-> get_visible( self))
      my-> set_selected( self, true);
   inherited-> setup( self);
}

void
Widget_show( Handle self)
{
   enter_method;
   my-> set_visible( self, true);
}

void
Widget_show_cursor( Handle self)
{
   enter_method;
   if ( var-> cursorLock-- <= 0) {
      my-> set_cursorVisible( self, true);
      var-> cursorLock = 0;
   }
}

/*::t */
/*::u */

static Bool
repaint_all( Handle owner, Handle self, void * dummy)
{
   enter_method;
   my-> repaint( self);
   my-> first_that( self, (void*)repaint_all, nil);
   return false;
}

Bool
Widget_unlock( Handle self)
{
   if ( --var-> lockCount <= 0) {
      var-> lockCount = 0;
      repaint_all( var-> owner, self, nil);
   }
   return true;
}

void
Widget_update_view( Handle self)
{
   if ( !opt_InPaint) apc_widget_update( self);
}

/*::v */

Bool
Widget_validate_owner( Handle self, Handle * owner, HV * profile)
{
   dPROFILE;
   *owner = pget_H( owner);
   if ( !kind_of( *owner, CWidget)) return false;
   return inherited-> validate_owner( self, owner, profile);
}

/*::w */
/*::x */
/*::y */
/*::z */

/* get_props() */

Font
Widget_get_default_font( char * dummy)
{
   Font font;
   apc_widget_default_font( &font);
   return font;
}

Font
Widget_get_default_popup_font( char * dummy)
{
   Font f;
   apc_popup_default_font( &f);
   return f;
}


NPoint
Widget_designScale( Handle self, Bool set, NPoint designScale)
{
   if ( !set)
      return var-> designScale;
   if ( designScale. x < 0) designScale. x = 0;
   if ( designScale. y < 0) designScale. y = 0;
   var-> designScale = designScale;
   return designScale;
}

int
Widget_growMode( Handle self, Bool set, int growMode)
{
   enter_method;
   Bool x = false, y = false;
   if ( !set)
      return var-> growMode;
   var-> growMode = growMode;
   if ( var-> growMode & gmXCenter) x = true;
   if ( var-> growMode & gmYCenter) y = true;
   if ( x || y) my-> set_centered( self, x, y);
   return var-> growMode;
}

SV *
Widget_get_handle( Handle self)
{
   char buf[ 256];
   snprintf( buf, 256, "0x%08lx", apc_widget_get_handle( self));
   return newSVpv( buf, 0);
}


SV *
Widget_get_parent_handle( Handle self)
{
   char buf[ 256];
   snprintf( buf, 256, "0x%08lx", apc_widget_get_parent_handle( self));
   return newSVpv( buf, 0);
}

int
Widget_hintVisible( Handle self, Bool set, int hintVisible)
{
   Bool wantVisible;
   if ( !set)
      return PApplication( application)-> hintVisible;
   if ( var-> stage >= csDead) return false;
   wantVisible = ( hintVisible != 0);
   if ( wantVisible == PApplication( application)-> hintVisible) return false;
   if ( wantVisible) {
      if ( strlen( var-> hint) == 0) return false;
      if ( hintVisible > 0) PApplication(application)-> hintActive = -1; /* immediate */
   }
   CApplication( application)-> set_hint_action( application, self, wantVisible, false);
   return false;
}

Bool
Widget_get_locked( Handle self)
{
   while ( self) {
      if ( var-> lockCount != 0) return true;
      self = var-> owner;
   }
   return false;
}


Handle
Widget_get_parent( Handle self)
{
   enter_method;
   return my-> get_clipOwner( self) ? var-> owner : application;
}

Point
Widget_get_pointer_size( char*dummy)
{
   return apc_pointer_get_size( nilHandle);
}

Font
Widget_get_popup_font( Handle self)
{
   return var-> popupFont;
}

Handle
Widget_get_selectee( Handle self)
{
   if ( var-> stage > csFrozen) return nilHandle;
   if ( is_opt( optSelectable))
      return self;
   else if ( var-> currentWidget) {
      PWidget w = ( PWidget) var-> currentWidget;
      if ( w-> options. optSystemSelectable && !w-> self-> get_clipOwner(( Handle) w))
         return ( Handle) w;
      else
         return w-> self-> get_selectee(( Handle) w);
   } else if ( is_opt( optSystemSelectable))
      return self;
   else
      return find_tabfoc( self);
}

Point
Widget_get_virtual_size( Handle self)
{
   return var-> virtualSize;
}

/* set_props() */

void
Widget_set_capture( Handle self, Bool capture, Handle confineTo)
{
   if ( opt_InPaint) return;
   apc_widget_set_capture( self, capture, confineTo);
}

void
Widget_set_centered( Handle self, Bool x, Bool y)
{
   enter_method;
   Handle parent = my-> get_parent( self);
   Point size    = CWidget( parent)-> get_size( parent);
   Point mysize  = my-> get_size ( self);
   Point mypos   = my-> get_origin( self);
   Point delta   = {0,0};
   if ( parent == application ) {
        int i, nrects = 0;
        Rect2 *best = nil, *rects = apc_application_get_monitor_rects( application, &nrects);
        for ( i = 0; i < nrects; i++) {
            Rect2 * curr = rects + i;
            if ( best == nil || best-> x > curr->x || best->y > curr->y)
	            best = curr;
        }
        if ( best ) {
            delta.x = best->x;
            delta.y = best->y;
            size.x  = best->width;
            size.y  = best->height;
        }
   }
   if ( x) mypos. x = ( size. x - mysize. x) / 2 + delta.x;
   if ( y) mypos. y = ( size. y - mysize. y) / 2 + delta.y;
   my-> set_origin( self, mypos);
}

void
Widget_set_font( Handle self, Font font)
{
   enter_method;
   if ( var-> stage > csFrozen) return;
   if ( !opt_InPaint) my-> first_that( self, (void*)font_notify, &font);
   if ( var-> handle == nilHandle) return; /* aware of call from Drawable::init */
   apc_font_pick( self, &font, & var-> font);
   if ( opt_InPaint) apc_gp_set_font ( self, & var-> font);
   else {
      opt_clear( optOwnerFont);
      apc_widget_set_font( self, & var-> font);
      my-> repaint( self);
   }
}

void
Widget_set_popup_font( Handle self, Font font)
{
   apc_font_pick( self, &font, &var-> popupFont);
}

/* event handlers */

void
Widget_on_paint( Handle self, SV * canvas)
{
	int i;
   dSP;
   ENTER;
   SAVETMPS;
   PUSHMARK( sp);
   XPUSHs( canvas);
	for ( i = 0; i < 4; i++)
      XPUSHs( sv_2mortal( newSViv( -1)));
   PUTBACK;
   PERL_CALL_METHOD( "clear", G_DISCARD);
   SPAGAIN;
   PUTBACK;
   FREETMPS;
   LEAVE;
}

/*
void Widget_on_click( Handle self) {}
void Widget_on_change( Handle self) {}
void Widget_on_close( Handle self) {}
void Widget_on_colorchanged( Handle self, int colorIndex){}
void Widget_on_disable( Handle self) {}
void Widget_on_dragdrop( Handle self, Handle source , int x , int y ) {}
void Widget_on_dragover( Handle self, Handle source , int x , int y , int state ) {}
void Widget_on_enable( Handle self) {}
void Widget_on_enddrag( Handle self, Handle target , int x , int y ) {}
void Widget_on_fontchanged( Handle self) {}
void Widget_on_enter( Handle self) {}
void Widget_on_keydown( Handle self, int code , int key , int shiftState, int repeat ) {}
void Widget_on_keyup( Handle self, int code , int key , int shiftState ) {}
void Widget_on_menu( Handle self, Handle menu, char * variable) {}
void Widget_on_setup( Handle self) {}
void Widget_on_size( Handle self, Point oldSize, Point newSize) {}
void Widget_on_move( Handle self, Point oldPos, Point newPos) {}
void Widget_on_show( Handle self) {}
void Widget_on_hide( Handle self) {}
void Widget_on_hint( Handle self, Bool show) {}
void Widget_on_translateaccel( Handle self, int code , int key , int shiftState ) {}
void Widget_on_zorderchanged( Handle self) {}
void Widget_on_popup( Handle self, Bool mouseDriven, int x, int y) {}
void Widget_on_mouseclick( Handle self, int button , int shiftState , int x , int y , Bool dbl ) {}
void Widget_on_mousedown( Handle self, int button , int shiftState , int x , int y ) {}
void Widget_on_mouseup( Handle self, int button , int shiftState , int x , int y ) {}
void Widget_on_mousemove( Handle self, int shiftState , int x , int y ) {}
void Widget_on_mousewheel( Handle self, int shiftState , int x , int y, int z ) {}
void Widget_on_mouseenter( Handle self, int shiftState , int x , int y ) {}
void Widget_on_mouseleave( Handle self ) {}
void Widget_on_leave( Handle self) {}
*/


/* static iterators */
Bool kill_all( Handle self, Handle child, void * dummy)
{
   Object_destroy( child); return 0;
}

static Bool find_dup_msg( PEvent event, int * cmd) { return event-> cmd == *cmd; }

Bool
accel_notify ( Handle group, Handle self, PEvent event)
{
   enter_method;
   if (( self != event-> key. source) && my-> get_enabled( self))
      return ( var-> stage <= csNormal) ? !my-> message( self, event) : false;
   else
      return false;
}

static Bool
pquery ( Handle window, Handle self, void * v)
{
   enter_method;
   Event ev = {cmClose};
   return ( var-> stage <= csNormal) ? !my-> message( self, &ev) : false;
}

Bool
find_accel( Handle self, Handle item, int * key)
{
   return ( kind_of( item, CAbstractMenu)
            && CAbstractMenu(item)-> sub_call_key( item, *key));
}

static Handle
find_tabfoc( Handle self)
{
   int i;
   Handle toRet;
   for ( i = 0; i < var-> widgets. count; i++) {
      PWidget w = ( PWidget)( var-> widgets. items[ i]);
      if (
           w-> self-> get_selectable(( Handle) w) &&
           w-> self-> get_enabled(( Handle) w)
         )
         return ( Handle) w;
   }
   for ( i = 0; i < var-> widgets. count; i++)
      if (( toRet = find_tabfoc( var-> widgets. items[ i])))
         return toRet;
   return nilHandle;
}


static Bool
get_top_current( Handle self)
{
   PWidget o  = ( PWidget) var-> owner;
   Handle  me = self;
   while ( o) {
      if ( o-> currentWidget != me)
         return false;
      me = ( Handle) o;
      o  = ( PWidget) o-> owner;
   }
   return true;
}

static Bool
sptr( Handle window, Handle self, void * v)
{
   enter_method;
   /* does nothing but refreshes system pointer */
   if ( var-> pointerType == crDefault)
      my-> set_pointerType( self, crDefault);
   return false;
}

/* static iterators for ownership notifications */

Bool
font_notify ( Handle self, Handle child, void * font)
{
   if ( his-> options. optOwnerFont) {
      his-> self-> set_font ( child, *(( PFont) font));
      his-> options. optOwnerFont = 1;
   }
   return false;
}

static Bool
showhint_notify ( Handle self, Handle child, void * data)
{
    if ( his-> options. optOwnerShowHint) {
       his-> self-> set_showHint ( child, *(( Bool *) data));
       his-> options. optOwnerShowHint = 1;
    }
    return false;
}

static Bool
hint_notify ( Handle self, Handle child, SV * hint)
{
    if ( his-> options. optOwnerHint) {
       his-> self-> set_hint( child, hint);
       his-> options. optOwnerHint = 1;
    }
    return false;
}

Bool
single_color_notify ( Handle self, Handle child, void * color)
{
   PSingleColor s = ( PSingleColor) color;
   if ( his-> options. optOwnerColor && ( s-> index == ciFore))
   {
      his-> self-> colorIndex ( child, true, s-> index, s-> color);
      his-> options. optOwnerColor = 1;
   } else if (( his-> options. optOwnerBackColor) && ( s-> index == ciBack))
   {
      his-> self-> colorIndex ( child, true, s-> index, s-> color);
      his-> options. optOwnerBackColor = 1;
   } else if ( s-> index > ciBack)
      his-> self-> colorIndex ( child, true, s-> index, s-> color);
   return false;
}

Bool
prima_read_point( SV *rv_av, int * pt, int number, char * error)
{
   SV ** holder;
   int i;
   AV *av;
   Bool result = true;

   if ( !rv_av || !SvROK( rv_av) || ( SvTYPE( SvRV( rv_av)) != SVt_PVAV)) {
      result = false;
      if ( error) croak( "%s", error);
   } else {
      av = (AV*)SvRV(rv_av);
      for ( i = 0; i < number; i++) {
         holder = av_fetch( av, i, 0);
         if ( holder)
            pt[i] = SvIV( *holder);
         else {
            pt[i] = 0;
            result = false;
            if ( error) croak( "%s", error);
         }
      }
   }
   return result;
}

static Bool
auto_enable_children( Handle self, Handle child, void * enable)
{
   apc_widget_set_enabled( child, PTR2UV( enable));
   return false;
}
/* properties section */

SV *
Widget_accelItems( Handle self, Bool set, SV * accelItems)
{
   dPROFILE;
   enter_method;
   if ( var-> stage > csFrozen) return nilSV;
   if ( !set)
      return var-> accelTable ?
             CAbstractMenu( var-> accelTable)-> get_items( var-> accelTable, "") : nilSV;
   if ( var-> accelTable == nilHandle) {
      HV * profile = newHV();
      if ( SvTYPE( accelItems)) pset_sv( items, accelItems);
      pset_H ( owner, self);
      my-> set_accelTable( self, create_instance( "Prima::AccelTable"));
      sv_free(( SV *) profile);
   } else
      CAbstractMenu( var-> accelTable)-> set_items( var-> accelTable, accelItems);
   return nilSV;
}

Handle
Widget_accelTable( Handle self, Bool set, Handle accelTable)
{
   enter_method;
   if ( var-> stage > csFrozen) return nilHandle;
   if ( !set)
      return var-> accelTable;
   if ( accelTable && !kind_of( accelTable, CAbstractMenu)) return nilHandle;
   if ( accelTable && (( PAbstractMenu) accelTable)-> owner != self)
      my-> set_accelItems( self, CAbstractMenu( accelTable)-> get_items( accelTable, ""));
   else
      var-> accelTable = accelTable;
   return accelTable;
}

Color
Widget_backColor( Handle self, Bool set, Color color)
{
   enter_method;
   if (!set) return my-> colorIndex( self, false, ciBack, 0);
   my-> colorIndex( self, true, ciBack, color);
   return color;
}

int
Widget_bottom( Handle self, Bool set, int bottom)
{
   enter_method;
   Point p = my-> get_origin( self);
   if ( !set)
      return p. y;
   p. y = bottom;
   my-> set_origin( self, p);
   return 0;
}

Bool
Widget_autoEnableChildren( Handle self, Bool set, Bool autoEnableChildren)
{
   if ( !set)
      return is_opt( optAutoEnableChildren);
   opt_assign( optAutoEnableChildren, autoEnableChildren);
   return false;
}

Bool
Widget_briefKeys( Handle self, Bool set, Bool briefKeys)
{
   if ( !set)
      return is_opt( optBriefKeys);
   opt_assign( optBriefKeys, briefKeys);
   return false;
}

Bool
Widget_buffered( Handle self, Bool set, Bool buffered)
{
   if ( !set)
      return is_opt( optBuffered);
   if ( !opt_InPaint)
      opt_assign( optBuffered, buffered);
   return false;
}

Bool
Widget_clipOwner( Handle self, Bool set, Bool clipOwner)
{
   HV * profile;
   enter_method;
   if ( !set)
      return apc_widget_get_clip_owner( self);
   profile = newHV();
   pset_i( clipOwner, clipOwner);
   my-> set( self, profile);
   sv_free(( SV *) profile);
   return false;
}

Color
Widget_color( Handle self, Bool set, Color color)
{
   enter_method;
   if (!set)
      return my-> colorIndex( self, false, ciFore, 0);
   return my-> colorIndex( self, true, ciFore, color);
}

Color
Widget_colorIndex( Handle self, Bool set, int index, Color color)
{
   if ( !set) {
      if ( index < 0 || index > ciMaxId) return clInvalid;
      switch ( index) {
        case ciFore:
           return opt_InPaint ? inherited-> get_color ( self) : apc_widget_get_color( self, ciFore);
        case ciBack:
           return opt_InPaint ? inherited-> get_backColor ( self) : apc_widget_get_color( self, ciBack);
        default:
           return apc_widget_get_color( self, index);
      }
   } else {
      enter_method;
      SingleColor s;
      s. color = color;
      s. index = index;
      if (( index < 0) || ( index > ciMaxId)) return clInvalid;
      if ( !opt_InPaint) my-> first_that( self, (void*)single_color_notify, &s);

      if ( var-> handle == nilHandle) return clInvalid; /* aware of call from Drawable::init */
      if ((( color & clSysFlag) != 0) && (( color & wcMask) == 0))
         color |= var-> widgetClass;
      if ( opt_InPaint) {
         switch ( index) {
            case ciFore:
               inherited-> set_color ( self, color);
               break;
            case ciBack:
               inherited-> set_backColor ( self, color);
               break;
            default:
               apc_widget_set_color ( self, color, index);
         }
      } else {
         switch ( index) {
            case ciFore:
               opt_clear( optOwnerColor);
               break;
            case ciBack:
               opt_clear( optOwnerBackColor);
               break;
         }
         apc_widget_set_color( self, color, index);
         my-> repaint( self);
      }
   }
   return 0;
}

Bool
Widget_current( Handle self, Bool set, Bool current)
{
   PWidget o;
   if ( var-> stage > csFrozen) return false;
   if ( !set)
      return var-> owner && ( PWidget( var-> owner)-> currentWidget == self);
   o = ( PWidget) var-> owner;
   if ( o == nil) return false;
   if ( current)
      o-> self-> set_currentWidget( var-> owner, self);
   else
      if ( o-> currentWidget == self)
         o-> self-> set_currentWidget( var-> owner, nilHandle);
   return current;
}

Handle
Widget_currentWidget( Handle self, Bool set, Handle widget)
{
   enter_method;
   if ( var-> stage > csFrozen) return nilHandle;
   if ( !set)
      return var-> currentWidget;
   if ( widget) {
      if ( !widget || ( PWidget( widget)-> stage > csFrozen) ||
             ( PWidget( widget)-> owner != self)
           ) return nilHandle;
      var-> currentWidget = widget;
   } else
      var-> currentWidget = nilHandle;

   /* adjust selection if we're in currently selected chain */
   if ( my-> get_selected( self))
      my-> set_selectedWidget( self, widget);
   return nilHandle;
}

Point
Widget_cursorPos( Handle self, Bool set, Point cursorPos)
{
   if ( !set)
      return apc_cursor_get_pos( self);
   apc_cursor_set_pos( self, cursorPos. x, cursorPos. y);
   return cursorPos;
}

Point
Widget_cursorSize( Handle self, Bool set, Point cursorSize)
{
   if ( !set)
      return apc_cursor_get_size( self);
   apc_cursor_set_size( self, cursorSize. x, cursorSize. y);
   return cursorSize;
}

Bool
Widget_cursorVisible( Handle self, Bool set, Bool cursorVisible)
{
   if ( !set)
      return apc_cursor_get_visible( self);
   return apc_cursor_set_visible( self, cursorVisible);
}

Bool
Widget_enabled( Handle self, Bool set, Bool enabled)
{
   if ( !set) return apc_widget_is_enabled( self);
   if ( !apc_widget_set_enabled( self, enabled)) 
      return false;
   if ( is_opt( optAutoEnableChildren)) 
      CWidget(self)-> first_that( self, (void*)auto_enable_children, INT2PTR(void*,enabled));
   return true;
}

Bool
Widget_firstClick( Handle self, Bool set, Bool firstClick)
{
   return set ?
      apc_widget_set_first_click( self, firstClick) :
      apc_widget_get_first_click( self);
}

Bool
Widget_focused( Handle self, Bool set, Bool focused)
{
   enter_method;
   if ( var-> stage > csNormal) return false;
   if ( !set)
      return apc_widget_is_focused( self);

   if ( focused) {
      PWidget x = ( PWidget)( var-> owner);
      Handle current = self;
      while ( x) {
         x-> currentWidget = current;
         current = ( Handle) x;
         x = ( PWidget) x-> owner;
      }
      var-> currentWidget = nilHandle;
      if ( var-> stage == csNormal)
         apc_widget_set_focused( self);
   } else
      if ( var-> stage == csNormal && my-> get_selected( self))
         apc_widget_set_focused( nilHandle);
   return focused;
}

SV *
Widget_helpContext( Handle self, Bool set, SV *helpContext)
{
   if ( set) {
      if ( var-> stage > csFrozen) return nilSV;
      free( var-> helpContext);
      var-> helpContext = nil;
      var-> helpContext = duplicate_string( SvPV_nolen( helpContext));
      opt_assign( optUTF8_helpContext, prima_is_utf8_sv(helpContext));
   } else {
      helpContext = newSVpv( var-> helpContext ? var-> helpContext : "", 0);
      if ( is_opt( optUTF8_helpContext)) SvUTF8_on( helpContext);
      return helpContext;
   }
   return nilSV;
}

SV *
Widget_hint( Handle self, Bool set, SV *hint)
{
   enter_method;
   if ( set) {
      if ( var-> stage > csFrozen) return nilSV;
      my-> first_that( self, (void*)hint_notify, (void*)hint);
      free( var-> hint);
      var-> hint = nil;
      var-> hint = duplicate_string( SvPV_nolen( hint));
      opt_assign( optUTF8_hint, prima_is_utf8_sv(hint));
      if ( application && (( PApplication) application)-> hintVisible &&
           (( PApplication) application)-> hintUnder == self)
      {
         SV   * hintText   = my-> get_hint( self);
         Handle hintWidget = (( PApplication) application)-> hintWidget;
         if ( strlen( var-> hint) == 0) 
            my-> set_hintVisible( self, 0);
         if ( hintWidget) 
            CWidget(hintWidget)-> set_text( hintWidget, hintText);
         sv_free( hintText);
      }
      opt_clear( optOwnerHint);
   } else {
      hint = newSVpv( var-> hint ? var-> hint : "", 0);
      if ( is_opt( optUTF8_hint)) SvUTF8_on( hint);
      return hint;
   }
   return nilSV;
}

int
Widget_left( Handle self, Bool set, int left)
{
   enter_method;
   Point p = my-> get_origin( self);
   if ( !set)
      return p. x;
   p. x = left;
   my-> set_origin( self, p);
   return 0;
}

Point
Widget_origin( Handle self, Bool set, Point origin)
{
   if ( !set)
      return apc_widget_get_pos( self);
   apc_widget_set_pos( self, origin.x, origin.y);
   return origin;
}

Bool
Widget_ownerBackColor( Handle self, Bool set, Bool ownerBackColor)
{
   enter_method;
   if ( !set)
      return is_opt( optOwnerBackColor);
   opt_assign( optOwnerBackColor, ownerBackColor);
   if ( is_opt( optOwnerBackColor) && var-> owner)
   {
      my-> set_backColor( self, ((( PWidget) var-> owner)-> self)-> get_backColor( var-> owner));
      opt_set( optOwnerBackColor);
      my-> repaint ( self);
   }
   return false;
}

Bool
Widget_ownerColor( Handle self, Bool set, Bool ownerColor)
{
   enter_method;
   if ( !set)
      return is_opt( optOwnerColor);
   opt_assign( optOwnerColor, ownerColor);
   if ( is_opt( optOwnerColor) && var-> owner)
   {
      my-> set_color( self, ((( PWidget) var-> owner)-> self)-> get_color( var-> owner));
      opt_set( optOwnerColor);
      my-> repaint( self);
   }
   return false;
}

Bool
Widget_ownerFont( Handle self, Bool set, Bool ownerFont )
{
   enter_method;
   if ( !set)
      return is_opt( optOwnerFont);
   opt_assign( optOwnerFont, ownerFont);
   if ( is_opt( optOwnerFont) && var-> owner)
   {
      my-> set_font ( self, ((( PWidget) var-> owner)-> self)-> get_font ( var-> owner));
      opt_set( optOwnerFont);
      my-> repaint ( self);
   }
   return false;
}

Bool
Widget_ownerHint( Handle self, Bool set, Bool ownerHint )
{
   enter_method;
   if ( !set)
      return is_opt( optOwnerHint);
   opt_assign( optOwnerHint, ownerHint);
   if ( is_opt( optOwnerHint) && var-> owner)
   {
      my-> set_hint( self, ((( PWidget) var-> owner)-> self)-> get_hint ( var-> owner));
      opt_set( optOwnerHint);
   }
   return false;
}

Bool
Widget_ownerPalette( Handle self, Bool set, Bool ownerPalette)
{
   enter_method;
   if ( !set)
      return is_opt( optOwnerPalette);
   if ( ownerPalette) my-> set_palette( self, nilSV);
   opt_assign( optOwnerPalette, ownerPalette);
   return false;
}

Bool
Widget_ownerShowHint( Handle self, Bool set, Bool ownerShowHint )
{
   enter_method;
   if ( !set)
      return is_opt( optOwnerShowHint);
   opt_assign( optOwnerShowHint, ownerShowHint);
   if ( is_opt( optOwnerShowHint) && var-> owner)
   {
      my-> set_showHint( self, CWidget( var-> owner)-> get_showHint ( var-> owner));
      opt_set( optOwnerShowHint);
   }
   return false;
}

SV *
Widget_palette( Handle self, Bool set, SV * palette)
{
   int colors;
   if ( !set)
      return inherited-> palette( self, set, palette);

   if ( var-> stage > csFrozen) return nilSV;
   if ( var-> handle == nilHandle) return nilSV; /* aware of call from Drawable::init */

   colors = var-> palSize;
   free( var-> palette);
   var-> palette = read_palette( &var-> palSize, palette);
   opt_clear( optOwnerPalette);
   if ( colors == 0 && var-> palSize == 0)
      return nilSV; /* do not bother apc */
   if ( opt_InPaint)
      apc_gp_set_palette( self);
   else
      apc_widget_set_palette( self);
   return nilSV;
}

Handle
Widget_pointerIcon( Handle self, Bool set, Handle icon)
{
   enter_method;
   Point hotSpot;

   if ( var-> stage > csFrozen) return nilHandle;

   if ( !set) {
      HV * profile = newHV();
      Handle icon = Object_create( "Prima::Icon", profile);
      sv_free(( SV *) profile);
      apc_pointer_get_bitmap( self, icon);
      --SvREFCNT( SvRV((( PAnyObject) icon)-> mate));
      return icon;
   }

   if ( icon != nilHandle && !kind_of( icon, CIcon)) {
      warn("Illegal object reference passed to Widget::pointerIcon");
      return nilHandle;
   }
   hotSpot = my-> get_pointerHotSpot( self);
   apc_pointer_set_user( self, icon, hotSpot);
   if ( var-> pointerType == crUser) my-> first_that( self, (void*)sptr, nil);
   return nilHandle;
}

Point
Widget_pointerHotSpot( Handle self, Bool set, Point hotSpot)
{
   enter_method;
   Handle icon;
   if ( !set)
      return apc_pointer_get_hot_spot( self);
   if ( var-> stage > csFrozen) return hotSpot;
   icon = my-> get_pointerIcon( self);
   apc_pointer_set_user( self, icon, hotSpot);
   if ( var-> pointerType == crUser) my-> first_that( self, (void*)sptr, nil);
   return hotSpot;
}

int
Widget_pointerType( Handle self, Bool set, int type)
{
   enter_method;
   if ( var-> stage > csFrozen) return 0;
   if ( !set)
      return var-> pointerType;
   var-> pointerType = type;
   apc_pointer_set_shape( self, type);
   my-> first_that( self, (void*)sptr, nil);
   return type;
}

Point
Widget_pointerPos( Handle self, Bool set, Point p)
{
   if ( !set) {
      p = apc_pointer_get_pos( self);
      apc_widget_map_points( self, false, 1, &p);
      return p;
   }
   apc_widget_map_points( self, true, 1, &p);
   apc_pointer_set_pos( self, p. x, p. y);
   return p;
}

Handle
Widget_popup( Handle self, Bool set, Handle popup)
{
   enter_method;
   if ( var-> stage > csFrozen) return nilHandle;
   if ( !set)
      return var-> popupMenu;

   if ( popup && !kind_of( popup, CPopup)) return nilHandle;
   if ( popup && PAbstractMenu( popup)-> owner != self)
      my-> set_popupItems( self, CAbstractMenu( popup)-> get_items( popup, ""));
   else
      var-> popupMenu = popup;
   return nilHandle;
}

Color
Widget_popupColorIndex( Handle self, Bool set, int index, Color color)
{
   if (( index < 0) || ( index > ciMaxId)) return clInvalid;
   if ( !set)
      return var-> popupColor[ index];
   if ((( color & clSysFlag) != 0) && (( color & wcMask) == 0)) color |= wcPopup;
   var-> popupColor[ index] = color;
   return color;
}

SV *
Widget_popupItems( Handle self, Bool set, SV * popupItems)
{
   dPROFILE;
   enter_method;
   if ( var-> stage > csFrozen) return nilSV;
   if ( !set)
      return var-> popupMenu ?
         CAbstractMenu( var-> popupMenu)-> get_items( var-> popupMenu, "") : nilSV;

   if ( var-> popupMenu == nilHandle) {
     if ( SvTYPE( popupItems)) {
         HV * profile = newHV();
         pset_sv( items, popupItems);
         pset_H ( owner, self);
         my-> set_popup( self, create_instance( "Prima::Popup"));
         sv_free(( SV *) profile);
      }
   }
   else
      CAbstractMenu( var-> popupMenu)-> set_items( var-> popupMenu, popupItems);
   return popupItems;
}


Rect
Widget_rect( Handle self, Bool set, Rect r)
{
   enter_method;
   if ( !set) {
      Point p   = my-> get_origin( self);
      Point s   = my-> get_size( self);
      r. left   = p. x;
      r. bottom = p. y;
      r. right  = p. x + s. x;
      r. top    = p. y + s. y;
   } else 
      apc_widget_set_rect( self, r. left, r. bottom, r. right - r. left, r. top - r. bottom);
   return r;
}

int
Widget_right( Handle self, Bool set, int right)
{
   enter_method;
   Point p;
   Rect r = my-> get_rect( self);
   if ( !set)
      return r. right;
   p. x = r. left - r. right + right;
   p. y = r. bottom;
   my-> set_origin( self, p);
   return 0;
}

Bool
Widget_scaleChildren( Handle self, Bool set, Bool scaleChildren)
{
   if ( !set)
      return is_opt( optScaleChildren);
   opt_assign( optScaleChildren, scaleChildren);
   return false;
}

Bool
Widget_selectable( Handle self, Bool set, Bool selectable)
{
   if ( !set)
      return is_opt( optSelectable);
   opt_assign( optSelectable, selectable);
   return false;
}

Bool
Widget_selected( Handle self, Bool set, Bool selected)
{
   enter_method;
   if ( !set)
      return my-> get_selectedWidget( self) != nilHandle;

   if ( var-> stage > csFrozen) return selected;
   if ( selected) {
      if ( is_opt( optSelectable) && !is_opt( optSystemSelectable)) {
         my-> set_focused( self, true);
      } else
      if ( var-> currentWidget) {
         PWidget w = ( PWidget) var-> currentWidget;
         if ( w-> options. optSystemSelectable && !w-> self-> get_clipOwner(( Handle) w))
            w-> self-> bring_to_front(( Handle) w); /* <- very uncertain !!!! */
         else
            w-> self-> set_selected(( Handle) w, true);
      } else
      if ( is_opt( optSystemSelectable)) {
         /* nothing to do with Widget, reserved for Window */
      }
      else {
         PWidget toFocus = ( PWidget) find_tabfoc( self);
         if ( toFocus)
            toFocus-> self-> set_selected(( Handle) toFocus, 1);
         else {
         /* if group has no selectable widgets and cannot be selected by itself, */
         /* process chain of bring_to_front(), followed by set_focused(1) call, if available */
            PWidget x = ( PWidget) var-> owner;
            List  lst;
            int i;

            list_create( &lst, 8, 8);
            while ( x) {
               if ( !toFocus && x-> options. optSelectable) {
                  toFocus = x;  /* choose closest owner to focus */
                  break;
               }
               if (( Handle) x != application && !kind_of(( Handle) x, CWindow))
                  list_insert_at( &lst, ( Handle) x, 0);
               x = ( PWidget) x-> owner;
            }

            if ( toFocus)
               toFocus-> self-> set_focused(( Handle) toFocus, 1);

            for ( i = 0; i < lst. count; i++) {
               PWidget v = ( PWidget) list_at( &lst, i);
               v-> self-> bring_to_front(( Handle) v);
            }
            list_destroy( &lst);
         }
      } /* end set_selected( true); */
   } else
      my-> set_focused( self, false);
   return selected;
}

Handle
Widget_selectedWidget( Handle self, Bool set, Handle widget)
{
   if ( var-> stage > csFrozen) return nilHandle;

   if ( !set) {
      if ( var-> stage <= csNormal) {
         Handle foc = apc_widget_get_focused();
         PWidget  f = ( PWidget) foc;
         while( f) {
            if (( Handle) f == self) return foc;
            f = ( PWidget) f-> owner;
         }
      }
      return nilHandle;

      /* classic solution should be recursive and inheritant call */
      /* of get_selected() here, when Widget would return state of */
      /* child-group selected state until Widget::selected() called; */
      /* thus, each of them would call apc_widget_get_focused - that's expensive, */
      /* so that's the reason not to use classic object model here. */
   }

   if ( widget) {
      if ( PWidget( widget)-> owner == self)
         CWidget( widget)-> set_selected( widget, true);
   } else {
      /* give selection up to hierarchy chain */
      Handle s = self;
      while ( s) {
         if ( CWidget( s)-> get_selectable( s)) {
            CWidget( s)-> set_selected( s, true);
            break;
         }
         s = PWidget( s)-> owner;
      }
   }
   return nilHandle;
}

int
Widget_selectingButtons( Handle self, Bool set, int sb)
{
   if ( !set)
      return var-> selectingButtons;
   return var-> selectingButtons = sb;
}

Handle
Widget_shape( Handle self, Bool set, Handle mask)
{
   if ( var-> stage > csFrozen) return nilHandle;

   if ( !set) {
      if ( apc_widget_get_shape( self, nilHandle)) {
         HV * profile = newHV();
         Handle i = Object_create( "Prima::Image", profile);
         sv_free(( SV *) profile);
         apc_widget_get_shape( self, i);
         --SvREFCNT( SvRV((( PAnyObject) i)-> mate));
         return i;
      } else
         return nilHandle;
   }

   if ( mask && !kind_of( mask, CImage)) {
      warn("Illegal object reference passed to Widget::shape");
      return nilHandle;
   }

   if ( mask && (( PImage( mask)-> type & imBPP) != imbpp1)) {
      Handle i = CImage( mask)-> dup( mask);
      ++SvREFCNT( SvRV( PImage( i)-> mate));
      CImage( i)-> set_conversion( i, ictNone);
      CImage( i)-> set_type( i, imBW);
      apc_widget_set_shape( self, i);
      --SvREFCNT( SvRV( PImage( i)-> mate));
      Object_destroy( i);
   } else
      apc_widget_set_shape( self, mask);

   return nilHandle;
}

Bool
Widget_showHint( Handle self, Bool set, Bool showHint )
{
   enter_method;
   Bool oldShowHint = is_opt( optShowHint);
   if ( !set)
      return oldShowHint;
   my-> first_that( self, (void*)showhint_notify, &showHint);
   opt_clear( optOwnerShowHint);
   opt_assign( optShowHint, showHint);
   if ( application && !is_opt( optShowHint) && oldShowHint) my-> set_hintVisible( self, 0);
   return false;
}

Point
Widget_size( Handle self, Bool set, Point size)
{
   if ( !set)
      return apc_widget_get_size( self);
   apc_widget_set_size( self, size.x, size.y);
   return size;
}

Bool
Widget_syncPaint( Handle self, Bool set, Bool syncPaint)
{
   HV * profile;
   enter_method;
   if ( !set)
      return apc_widget_get_sync_paint( self);
   profile = newHV();
   pset_i( syncPaint, syncPaint);
   my-> set( self, profile);
   sv_free(( SV *) profile);
   return false;
}

int
Widget_tabOrder( Handle self, Bool set, int tabOrder)
{
    int count;
    PWidget owner;

    if ( var-> stage > csFrozen) return 0;
    if ( !set)
       return var-> tabOrder;

    owner = ( PWidget) var-> owner;
    count = owner-> widgets. count;
    if ( tabOrder < 0) {
       int i, maxOrder = -1;
       /* finding maximal tabOrder value among the siblings */
       for ( i = 0; i < count; i++) {
          PWidget ctrl = ( PWidget) owner-> widgets. items[ i];
          if ( self == ( Handle) ctrl) continue;
          if ( maxOrder < ctrl-> tabOrder) maxOrder = ctrl-> tabOrder;
       }
       if ( maxOrder < INT_MAX) {
          var-> tabOrder = maxOrder + 1;
          return 0;
       }
       /* maximal value found, but has no use; finding gaps */
       {
          int j = 0;
          Bool match = 1;
          while ( !match) {
             for ( i = 0; i < count; i++) {
                PWidget ctrl = ( PWidget) owner-> widgets. items[ i];
                if ( self == ( Handle) ctrl) continue;
                if ( ctrl-> tabOrder == j) {
                   match = 1;
                   break;
                }
             }
             j++;
          }
          var-> tabOrder = j - 1;
       }
    } else {
       int i;
       Bool match = 0;
       /* finding exact match among the siblings */
       for ( i = 0; i < count; i++) {
          PWidget ctrl = ( PWidget) owner-> widgets. items[ i];
          if ( self == ( Handle) ctrl) continue;
          if ( ctrl-> tabOrder == tabOrder) {
             match = 1;
             break;
          }
       }
       if ( match)
          /* incrementing all tabOrders that greater than ours */
          for ( i = 0; i < count; i++) {
             PWidget ctrl = ( PWidget) owner-> widgets. items[ i];
             if ( self == ( Handle) ctrl) continue;
             if ( ctrl-> tabOrder >= tabOrder) ctrl-> tabOrder++;
          }
       var-> tabOrder = tabOrder;
    }
    return 0;
}

Bool
Widget_tabStop( Handle self, Bool set, Bool stop)
{
   if ( !set)
      return is_opt( optTabStop);
   opt_assign( optTabStop, stop);
   return false;
}

Bool
Widget_transparent( Handle self, Bool set, Bool transparent)
{
   HV * profile;
   enter_method;
   if ( !set)
      return apc_widget_get_transparent( self);
   profile = newHV();
   pset_i( transparent, transparent);
   my-> set( self, profile);
   sv_free(( SV *) profile);
   return false;
}

SV *
Widget_text( Handle self, Bool set, SV *text)
{
   if ( set) {
      if ( var-> stage > csFrozen) return nilSV;
      free( var-> text);
      var-> text = nil;
      var-> text = duplicate_string( SvPV_nolen( text));
      opt_assign( optUTF8_text, prima_is_utf8_sv(text));
   } else {
      text = newSVpv( var-> text ? var-> text : "", 0);
      if ( is_opt( optUTF8_text)) SvUTF8_on( text);
      return text;
   }
   return nilSV;
}

int
Widget_top( Handle self, Bool set, int top)
{
   enter_method;
   Point p;
   Rect  r   = my-> get_rect( self);
   if ( !set)
      return r. top;
   p. x = r. left;
   p. y = r. bottom - r. top + top;
   my-> set_origin( self, p);
   return 0;
}

Bool
Widget_visible( Handle self, Bool set, Bool visible)
{
   return set ?
      apc_widget_set_visible( self, visible) :
      apc_widget_is_visible( self);
}

int
Widget_widgetClass( Handle self, Bool set, int widgetClass)
{
   enter_method;
   if ( !set)
      return var-> widgetClass;
   var-> widgetClass = widgetClass;
   my-> repaint( self);
   return 0;
}

/* XS section */
XS( Widget_client_to_screen_FROMPERL)
{
   dXSARGS;
   Handle self;
   int i, count;
   Point * points;

   if (( items % 2) != 1)
      croak ("Invalid usage of Widget::client_to_screen");
   SP -= items;
   self = gimme_the_mate( ST( 0));
   if ( self == nilHandle)
      croak( "Illegal object reference passed to Widget::client_to_screen");
   count  = ( items - 1) / 2;
   if ( !( points = allocn( Point, count))) {
      PUTBACK;
      return;
   }
   for ( i = 0; i < count; i++) {
      points[i]. x = SvIV( ST( i * 2 + 1));
      points[i]. y = SvIV( ST( i * 2 + 2));
   }
   apc_widget_map_points( self, true, count, points);
   EXTEND( sp, count * 2);
   for ( i = 0; i < count; i++) {
      PUSHs( sv_2mortal( newSViv( points[i].x)));
      PUSHs( sv_2mortal( newSViv( points[i].y)));
   }
   PUTBACK;
   free( points);
   return;
}

XS( Widget_screen_to_client_FROMPERL)
{
   dXSARGS;
   Handle self;
   int i, count;
   Point * points;

   if (( items % 2) != 1)
      croak ("Invalid usage of Widget::screen_to_client");
   SP -= items;
   self = gimme_the_mate( ST( 0));
   if ( self == nilHandle)
      croak( "Illegal object reference passed to Widget::screen_to_client");
   count  = ( items - 1) / 2;
   if ( !( points = allocn( Point, count))) {
      PUTBACK;
      return;
   }
   for ( i = 0; i < count; i++) {
      points[i]. x = SvIV( ST( i * 2 + 1));
      points[i]. y = SvIV( ST( i * 2 + 2));
   }
   apc_widget_map_points( self, false, count, points);
   EXTEND( sp, count * 2);
   for ( i = 0; i < count; i++) {
      PUSHs( sv_2mortal( newSViv( points[i].x)));
      PUSHs( sv_2mortal( newSViv( points[i].y)));
   }
   PUTBACK;
   free( points);
   return;
}


XS( Widget_get_widgets_FROMPERL)
{
   dXSARGS;
   Handle self;
   Handle * list;
   int i, count;

   if ( items != 1)
      croak ("Invalid usage of Widget.get_widgets");
   SP -= items;
   self = gimme_the_mate( ST( 0));
   if ( self == nilHandle)
      croak( "Illegal object reference passed to Widget.get_widgets");
   count = var-> widgets. count;
   list  = var-> widgets. items;
   EXTEND( sp, count);
   for ( i = 0; i < count; i++)
      PUSHs( sv_2mortal( newSVsv((( PAnyObject) list[ i])-> mate)));
   PUTBACK;
   return;
}

void Widget_get_widgets          ( Handle self) { warn("Invalid call of Widget::get_widgets"); }
void Widget_get_widgets_REDEFINED( Handle self) { warn("Invalid call of Widget::get_widgets"); }
void Widget_screen_to_client ( Handle self) { warn("Invalid call of Widget::screen_to_client"); }
void Widget_screen_to_client_REDEFINED ( Handle self) { warn("Invalid call of Widget::screen_to_client"); }
void Widget_client_to_screen ( Handle self) { warn("Invalid call of Widget::screen_to_client"); }
void Widget_client_to_screen_REDEFINED ( Handle self) { warn("Invalid call of Widget::screen_to_client"); }

#ifdef __cplusplus
}
#endif