[wxWidgets.git] / src / motif / choice.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        choice.cpp
// Purpose:     wxChoice
// Author:      Julian Smart
// Modified by:
// Created:     17/09/98
// RCS-ID:      $Id$
// Copyright:   (c) Julian Smart
// Licence:   	wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifdef __GNUG__
#pragma implementation "choice.h"
#endif

// For compilers that support precompilation, includes "wx.h".
#include "wx/choice.h"
#include "wx/utils.h"

#include <Xm/Xm.h>
#include <Xm/PushBG.h>
#include <Xm/PushB.h>
#include <Xm/RowColumn.h>

#include "wx/motif/private.h"

#if !USE_SHARED_LIBRARY
IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControl)
#endif

void wxChoiceCallback (Widget w, XtPointer clientData,
		  XtPointer ptr);

wxChoice::wxChoice()
{
    m_noStrings = 0;
    m_buttonWidget = (WXWidget) 0;
    m_menuWidget = (WXWidget) 0;
    m_widgetList = (WXWidget*) 0;
    m_formWidget = (WXWidget) 0;
}

bool wxChoice::Create(wxWindow *parent, wxWindowID id,
           const wxPoint& pos,
           const wxSize& size,
		   int n, const wxString choices[],
		   long style,
           const wxValidator& validator,
           const wxString& name)
{
    SetName(name);
    SetValidator(validator);
    m_noStrings = n;
    m_windowStyle = style;
    m_buttonWidget = (WXWidget) 0;
    m_menuWidget = (WXWidget) 0;
    m_widgetList = (WXWidget*) 0;
    m_formWidget = (WXWidget) 0;

    if (parent) parent->AddChild(this);

    if ( id == -1 )
    	m_windowId = (int)NewControlId();
    else
	    m_windowId = id;

    m_backgroundColour = parent->GetBackgroundColour();
    m_foregroundColour = parent->GetForegroundColour();

    Widget parentWidget = (Widget) parent->GetClientWidget();

    m_formWidget = (WXWidget) XtVaCreateManagedWidget ((char*) (const char*) name,
					xmRowColumnWidgetClass, parentWidget,
					XmNmarginHeight, 0,
					XmNmarginWidth, 0,
					XmNpacking, XmPACK_TIGHT,
					XmNorientation, XmHORIZONTAL,
					NULL);

    XtVaSetValues ((Widget) m_formWidget, XmNspacing, 0, NULL);

   /*
    * Create the popup menu
    */
    m_menuWidget = (WXWidget) XmCreatePulldownMenu ((Widget) m_formWidget, "choiceMenu", NULL, 0);

    int i;
    if (n > 0)
    {
        int i;
        for (i = 0; i < n; i++)
            Append (choices[i]);
    }

   /*
    * Create button
    */
    Arg args[10];
    Cardinal argcnt = 0;

    XtSetArg (args[argcnt], XmNsubMenuId, (Widget) m_menuWidget);
    argcnt++;
    XtSetArg (args[argcnt], XmNmarginWidth, 0);
    argcnt++;
    XtSetArg (args[argcnt], XmNmarginHeight, 0);
    argcnt++;
    XtSetArg (args[argcnt], XmNpacking, XmPACK_TIGHT);
    argcnt++;
    m_buttonWidget = (WXWidget) XmCreateOptionMenu ((Widget) m_formWidget, "choiceButton", args, argcnt);

    m_mainWidget = m_buttonWidget;

    XtManageChild ((Widget) m_buttonWidget);

    // New code from Roland Haenel (roland_haenel@ac.cybercity.de)
    // Some time ago, I reported a problem with wxChoice-items under
    // Linux and Motif 2.0 (they caused sporadic GPFs). Now it seems
    // that I have found the code responsible for this behaviour.
#if XmVersion >= 1002
#if XmVersion <  2000
    Widget optionLabel = XmOptionLabelGadget ((Widget) m_buttonWidget);
    XtUnmanageChild (optionLabel);
#endif
#endif

    XtVaSetValues((Widget) m_formWidget, XmNresizePolicy, XmRESIZE_NONE, NULL);

    AttachWidget (parent, m_buttonWidget, m_formWidget, pos.x, pos.y, size.x, size.y);

    SetFont(* parent->GetFont());
    ChangeBackgroundColour();

    return TRUE;
}

wxChoice::~wxChoice()
{
  // For some reason destroying the menuWidget
  // can cause crashes on some machines. It will
  // be deleted implicitly by deleting the parent form
  // anyway.
//  XtDestroyWidget (menuWidget);
    if (m_widgetList)
        delete[] m_widgetList;

    DetachWidget(GetMainWidget()); // Removes event handlers

    XtDestroyWidget((Widget) m_formWidget);
    m_formWidget = (WXWidget) 0;

    // Presumably the other widgets have been deleted now, via the form
    m_mainWidget = (WXWidget) 0;
    m_buttonWidget = (WXWidget) 0;
}

void wxChoice::Append(const wxString& item)
{
  wxStripMenuCodes ((char *)(const char *)item, wxBuffer);
  Widget w = XtVaCreateManagedWidget (wxBuffer,
#if USE_GADGETS
				      xmPushButtonGadgetClass, (Widget) m_menuWidget,
#else
				      xmPushButtonWidgetClass, (Widget) m_menuWidget,
#endif
				      NULL);

  DoChangeBackgroundColour((WXWidget) w, m_backgroundColour);

  if (m_windowFont.Ok())
    XtVaSetValues (w,
		   XmNfontList, (XmFontList) m_windowFont.GetFontList(1.0, XtDisplay((Widget) m_formWidget)),
		   NULL);

  WXWidget *new_widgetList = new WXWidget[m_noStrings + 1];
  int i;
  for (i = 0; i < m_noStrings; i++)
    new_widgetList[i] = m_widgetList[i];
  new_widgetList[m_noStrings] = (WXWidget) w;
  if (m_widgetList)
    delete[] m_widgetList;
  m_widgetList = new_widgetList;

  char mnem = wxFindMnemonic ((char*) (const char*) item);
  if (mnem != 0)
    XtVaSetValues (w, XmNmnemonic, mnem, NULL);

  XtAddCallback (w, XmNactivateCallback, (XtCallbackProc) wxChoiceCallback, (XtPointer) this);

  if (m_noStrings == 0 && m_buttonWidget)
    {
      XtVaSetValues ((Widget) m_buttonWidget, XmNmenuHistory, w, NULL);
      Widget label = XmOptionButtonGadget ((Widget) m_buttonWidget);
      XmString text = XmStringCreateSimple ((char*) (const char*) item);
      XtVaSetValues (label,
		     XmNlabelString, text,
		     NULL);
      XmStringFree (text);
    }
  wxNode *node = m_stringList.Add (item);
  XtVaSetValues (w, XmNuserData, node->Data (), NULL);

  m_noStrings ++;
}

void wxChoice::Delete(int n)
{
    wxFAIL_MSG( "Sorry, wxChoice::Delete isn't implemented yet. Maybe you'd like to volunteer? :-)" );

    // What should we do -- remove the callback for this button widget,
    // delete the m_stringList entry, delete the button widget, construct a new widget list
    // (see Append)

    // TODO
    m_noStrings --;
}

void wxChoice::Clear()
{
    m_stringList.Clear ();
    int i;
    for (i = 0; i < m_noStrings; i++)
    {
        XtUnmanageChild ((Widget) m_widgetList[i]);
        XtDestroyWidget ((Widget) m_widgetList[i]);
    }
    if (m_noStrings)
        delete[] m_widgetList;
    m_widgetList = (WXWidget*) NULL;
    if (m_buttonWidget)
        XtVaSetValues ((Widget) m_buttonWidget, XmNmenuHistory, (Widget) NULL, NULL);
    m_noStrings = 0;
}

int wxChoice::GetSelection() const
{
  XmString text;
  char *s;
  Widget label = XmOptionButtonGadget ((Widget) m_buttonWidget);
  XtVaGetValues (label,
         XmNlabelString, &text,
         NULL);

  if (XmStringGetLtoR (text, XmSTRING_DEFAULT_CHARSET, &s))
  {
      int i = 0;
      for (wxNode * node = m_stringList.First (); node; node = node->Next ())
      {
        char *s1 = (char *) node->Data ();
        if (s1 == s || strcmp (s1, s) == 0)
        {
          XmStringFree(text) ;
          XtFree (s);
          return i;
        }
        else
            i++;
      }            // for()

      XmStringFree(text) ;
      XtFree (s);
      return -1;
  }
  XmStringFree(text) ;
  return -1;
}

void wxChoice::SetSelection(int n)
{
  m_inSetValue = TRUE;
  
  wxNode *node = m_stringList.Nth (n);
  if (node)
    {
      Dimension selectionWidth, selectionHeight;

      char *s = (char *) node->Data ();
      XmString text = XmStringCreateSimple (s);
      XtVaGetValues ((Widget) m_widgetList[n], XmNwidth, &selectionWidth, XmNheight, &selectionHeight, NULL);
      Widget label = XmOptionButtonGadget ((Widget) m_buttonWidget);
      XtVaSetValues (label,
                     XmNlabelString, text,
                     NULL);
      XmStringFree (text);
      XtVaSetValues ((Widget) m_buttonWidget,
                     XmNwidth, selectionWidth, XmNheight, selectionHeight,
                     XmNmenuHistory, (Widget) m_widgetList[n], NULL);
    }
  m_inSetValue = FALSE;
}

int wxChoice::FindString(const wxString& s) const
{
    int i = 0;
    for (wxNode * node = m_stringList.First (); node; node = node->Next ())
    {
        char *s1 = (char *) node->Data ();
        if (s == s1)
        {
            return i;
        }
        else
            i++;
    }
    return -1;
}

wxString wxChoice::GetString(int n) const
{
  wxNode *node = m_stringList.Nth (n);
  if (node)
    return wxString((char *) node->Data ());
  else
    return wxEmptyString;
}

void wxChoice::SetColumns(int n)
{
  if (n<1) n = 1 ;

  short numColumns = n ;
  Arg args[3];

  XtSetArg(args[0], XmNnumColumns, numColumns);
  XtSetArg(args[1], XmNpacking, XmPACK_COLUMN);
  XtSetValues((Widget) m_menuWidget,args,2) ;
}

int wxChoice::GetColumns(void) const
{
  short numColumns ;

  XtVaGetValues((Widget) m_menuWidget,XmNnumColumns,&numColumns,NULL) ;
  return numColumns ;
}

void wxChoice::SetFocus()
{
  XmProcessTraversal(XtParent((Widget)m_mainWidget), XmTRAVERSE_CURRENT);
}

void wxChoice::SetSize(int x, int y, int width, int height, int sizeFlags)
{
    XtVaSetValues((Widget) m_formWidget, XmNresizePolicy, XmRESIZE_ANY, NULL);
    bool managed = XtIsManaged((Widget) m_formWidget);

    if (managed)
        XtUnmanageChild ((Widget) m_formWidget);

    int actualWidth = width, actualHeight = height;

    if (width > -1)
    {
        int i;
        for (i = 0; i < m_noStrings; i++)
            XtVaSetValues ((Widget) m_widgetList[i], XmNwidth, actualWidth, NULL);
        XtVaSetValues ((Widget) m_buttonWidget, XmNwidth, actualWidth,
             NULL);
    }
    if (height > -1)
    {
        int i;
        for (i = 0; i < m_noStrings; i++)
            XtVaSetValues ((Widget) m_widgetList[i], XmNheight, actualHeight, NULL);
        XtVaSetValues ((Widget) m_buttonWidget, XmNheight, actualHeight,
             NULL);
    }

    if (managed)
        XtManageChild ((Widget) m_formWidget);
    XtVaSetValues((Widget) m_formWidget, XmNresizePolicy, XmRESIZE_NONE, NULL);

    wxControl::SetSize (x, y, width, height, sizeFlags);
}

wxString wxChoice::GetStringSelection () const
{
    int sel = GetSelection ();
    if (sel > -1)
        return wxString(this->GetString (sel));
    else
        return wxEmptyString;
}

bool wxChoice::SetStringSelection (const wxString& s)
{
    int sel = FindString (s);
    if (sel > -1)
        {
            SetSelection (sel);
            return TRUE;
        }
    else
        return FALSE;
}

void wxChoice::Command(wxCommandEvent & event)
{
    SetSelection (event.GetInt());
    ProcessCommand (event);
}

void wxChoiceCallback (Widget w, XtPointer clientData,
          XtPointer ptr)
{
    wxChoice *item = (wxChoice *) clientData;
    if (item)
    {
        if (item->InSetValue())
            return;
        
        char *s = NULL;
        XtVaGetValues (w, XmNuserData, &s, NULL);
        if (s)
        {
            wxCommandEvent event (wxEVT_COMMAND_CHOICE_SELECTED);
            event.m_commandInt = item->FindString (s);
//            event.m_commandString = s;
            item->ProcessCommand (event);
        }
    }
}

void wxChoice::ChangeFont()
{
    // Note that this causes the widget to be resized back
    // to its original size! We therefore have to set the size
    // back again. TODO: a better way in Motif?
    if (m_windowFont.Ok())
    {
        int width, height, width1, height1;
        GetSize(& width, & height);

        XmFontList fontList = (XmFontList) m_windowFont.GetFontList(1.0, XtDisplay((Widget) m_mainWidget));
        XtVaSetValues ((Widget) m_mainWidget, XmNfontList, fontList, NULL);
        XtVaSetValues ((Widget) m_buttonWidget, XmNfontList, fontList, NULL);

        int i;
        for (i = 0; i < m_noStrings; i++)
            XtVaSetValues ((Widget) m_widgetList[i], XmNfontList, fontList, NULL);
        GetSize(& width1, & height1);
        if (width != width1 || height != height1)
        {
            SetSize(-1, -1, width, height);
        }
    }
}

void wxChoice::ChangeBackgroundColour()
{
    DoChangeBackgroundColour(m_formWidget, m_backgroundColour);
    DoChangeBackgroundColour(m_buttonWidget, m_backgroundColour);
    DoChangeBackgroundColour(m_menuWidget, m_backgroundColour);
    int i;
    for (i = 0; i < m_noStrings; i++)
        DoChangeBackgroundColour(m_widgetList[i], m_backgroundColour);
}

void wxChoice::ChangeForegroundColour()
{
    DoChangeForegroundColour(m_formWidget, m_foregroundColour);
    DoChangeForegroundColour(m_buttonWidget, m_foregroundColour);
    DoChangeForegroundColour(m_menuWidget, m_foregroundColour);
    int i;
    for (i = 0; i < m_noStrings; i++)
        DoChangeForegroundColour(m_widgetList[i], m_foregroundColour);
}
Commit	Line	Data
4bb6408c JS	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: choice.cpp
	3	// Purpose: wxChoice
	4	// Author: Julian Smart
	5	// Modified by:
	6	// Created: 17/09/98
	7	// RCS-ID: $Id$
	8	// Copyright: (c) Julian Smart
	9	// Licence: wxWindows licence
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	#ifdef __GNUG__
	13	#pragma implementation "choice.h"
	14	#endif
	15
	16	// For compilers that support precompilation, includes "wx.h".
	17	#include "wx/choice.h"
f97c9854 JS	18	#include "wx/utils.h"
	19
	20	#include <Xm/Xm.h>
	21	#include <Xm/PushBG.h>
	22	#include <Xm/PushB.h>
	23	#include <Xm/RowColumn.h>
	24
	25	#include "wx/motif/private.h"
4bb6408c JS	26
	27	#if !USE_SHARED_LIBRARY
	28	IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControl)
	29	#endif
	30
f97c9854 JS	31	void wxChoiceCallback (Widget w, XtPointer clientData,
	32	XtPointer ptr);
	33
	34	wxChoice::wxChoice()
	35	{
	36	m_noStrings = 0;
	37	m_buttonWidget = (WXWidget) 0;
	38	m_menuWidget = (WXWidget) 0;
	39	m_widgetList = (WXWidget*) 0;
	40	m_formWidget = (WXWidget) 0;
f97c9854 JS	41	}
f97c9854 JS	42
4bb6408c JS	43	bool wxChoice::Create(wxWindow *parent, wxWindowID id,
	44	const wxPoint& pos,
	45	const wxSize& size,
	46	int n, const wxString choices[],
	47	long style,
	48	const wxValidator& validator,
	49	const wxString& name)
	50	{
	51	SetName(name);
	52	SetValidator(validator);
	53	m_noStrings = n;
	54	m_windowStyle = style;
f97c9854 JS	55	m_buttonWidget = (WXWidget) 0;
	56	m_menuWidget = (WXWidget) 0;
	57	m_widgetList = (WXWidget*) 0;
	58	m_formWidget = (WXWidget) 0;
4bb6408c JS	59
	60	if (parent) parent->AddChild(this);
	61
	62	if ( id == -1 )
	63	m_windowId = (int)NewControlId();
	64	else
f97c9854 JS	65	m_windowId = id;
f97c9854 JS	66
0d57be45 JS	67	m_backgroundColour = parent->GetBackgroundColour();
	68	m_foregroundColour = parent->GetForegroundColour();
	69
f97c9854 JS	70	Widget parentWidget = (Widget) parent->GetClientWidget();
	71
	72	m_formWidget = (WXWidget) XtVaCreateManagedWidget ((char) (const char) name,
	73	xmRowColumnWidgetClass, parentWidget,
	74	XmNmarginHeight, 0,
	75	XmNmarginWidth, 0,
	76	XmNpacking, XmPACK_TIGHT,
	77	XmNorientation, XmHORIZONTAL,
	78	NULL);
	79
	80	XtVaSetValues ((Widget) m_formWidget, XmNspacing, 0, NULL);
	81
	82	/*
	83	* Create the popup menu
	84	*/
	85	m_menuWidget = (WXWidget) XmCreatePulldownMenu ((Widget) m_formWidget, "choiceMenu", NULL, 0);
	86
	87	int i;
	88	if (n > 0)
	89	{
	90	int i;
	91	for (i = 0; i < n; i++)
	92	Append (choices[i]);
	93	}
	94
	95	/*
	96	* Create button
	97	*/
	98	Arg args[10];
	99	Cardinal argcnt = 0;
	100
	101	XtSetArg (args[argcnt], XmNsubMenuId, (Widget) m_menuWidget);
	102	argcnt++;
	103	XtSetArg (args[argcnt], XmNmarginWidth, 0);
	104	argcnt++;
	105	XtSetArg (args[argcnt], XmNmarginHeight, 0);
	106	argcnt++;
	107	XtSetArg (args[argcnt], XmNpacking, XmPACK_TIGHT);
	108	argcnt++;
	109	m_buttonWidget = (WXWidget) XmCreateOptionMenu ((Widget) m_formWidget, "choiceButton", args, argcnt);
	110
	111	m_mainWidget = m_buttonWidget;
	112
	113	XtManageChild ((Widget) m_buttonWidget);
	114
	115	// New code from Roland Haenel (roland_haenel@ac.cybercity.de)
	116	// Some time ago, I reported a problem with wxChoice-items under
	117	// Linux and Motif 2.0 (they caused sporadic GPFs). Now it seems
	118	// that I have found the code responsible for this behaviour.
	119	#if XmVersion >= 1002
	120	#if XmVersion < 2000
	121	Widget optionLabel = XmOptionLabelGadget ((Widget) m_buttonWidget);
	122	XtUnmanageChild (optionLabel);
	123	#endif
	124	#endif
4bb6408c	125
f97c9854 JS	126	XtVaSetValues((Widget) m_formWidget, XmNresizePolicy, XmRESIZE_NONE, NULL);
	127
	128	AttachWidget (parent, m_buttonWidget, m_formWidget, pos.x, pos.y, size.x, size.y);
	129
	130	SetFont(* parent->GetFont());
0d57be45	131	ChangeBackgroundColour();
f97c9854 JS	132
	133	return TRUE;
	134	}
	135
	136	wxChoice::~wxChoice()
	137	{
	138	// For some reason destroying the menuWidget
	139	// can cause crashes on some machines. It will
	140	// be deleted implicitly by deleting the parent form
	141	// anyway.
	142	// XtDestroyWidget (menuWidget);
	143	if (m_widgetList)
	144	delete[] m_widgetList;
	145
	146	DetachWidget(GetMainWidget()); // Removes event handlers
	147
	148	XtDestroyWidget((Widget) m_formWidget);
	149	m_formWidget = (WXWidget) 0;
	150
	151	// Presumably the other widgets have been deleted now, via the form
	152	m_mainWidget = (WXWidget) 0;
	153	m_buttonWidget = (WXWidget) 0;
4bb6408c JS	154	}
	155
	156	void wxChoice::Append(const wxString& item)
	157	{
f97c9854 JS	158	wxStripMenuCodes ((char )(const char )item, wxBuffer);
	159	Widget w = XtVaCreateManagedWidget (wxBuffer,
	160	#if USE_GADGETS
	161	xmPushButtonGadgetClass, (Widget) m_menuWidget,
	162	#else
	163	xmPushButtonWidgetClass, (Widget) m_menuWidget,
	164	#endif
	165	NULL);
	166
321db4b6 JS	167	DoChangeBackgroundColour((WXWidget) w, m_backgroundColour);
321db4b6 JS	168
f97c9854 JS	169	if (m_windowFont.Ok())
	170	XtVaSetValues (w,
	171	XmNfontList, (XmFontList) m_windowFont.GetFontList(1.0, XtDisplay((Widget) m_formWidget)),
	172	NULL);
	173
	174	WXWidget *new_widgetList = new WXWidget[m_noStrings + 1];
	175	int i;
	176	for (i = 0; i < m_noStrings; i++)
	177	new_widgetList[i] = m_widgetList[i];
	178	new_widgetList[m_noStrings] = (WXWidget) w;
	179	if (m_widgetList)
	180	delete[] m_widgetList;
	181	m_widgetList = new_widgetList;
	182
	183	char mnem = wxFindMnemonic ((char) (const char) item);
	184	if (mnem != 0)
	185	XtVaSetValues (w, XmNmnemonic, mnem, NULL);
	186
	187	XtAddCallback (w, XmNactivateCallback, (XtCallbackProc) wxChoiceCallback, (XtPointer) this);
	188
	189	if (m_noStrings == 0 && m_buttonWidget)
	190	{
	191	XtVaSetValues ((Widget) m_buttonWidget, XmNmenuHistory, w, NULL);
	192	Widget label = XmOptionButtonGadget ((Widget) m_buttonWidget);
	193	XmString text = XmStringCreateSimple ((char) (const char) item);
	194	XtVaSetValues (label,
	195	XmNlabelString, text,
	196	NULL);
	197	XmStringFree (text);
	198	}
	199	wxNode *node = m_stringList.Add (item);
	200	XtVaSetValues (w, XmNuserData, node->Data (), NULL);
	201
	202	m_noStrings ++;
4bb6408c JS	203	}
	204
	205	void wxChoice::Delete(int n)
	206	{
f97c9854 JS	207	wxFAIL_MSG( "Sorry, wxChoice::Delete isn't implemented yet. Maybe you'd like to volunteer? :-)" );
	208
	209	// What should we do -- remove the callback for this button widget,
	210	// delete the m_stringList entry, delete the button widget, construct a new widget list
	211	// (see Append)
	212
4bb6408c JS	213	// TODO
	214	m_noStrings --;
	215	}
	216
	217	void wxChoice::Clear()
	218	{
f97c9854 JS	219	m_stringList.Clear ();
	220	int i;
	221	for (i = 0; i < m_noStrings; i++)
	222	{
	223	XtUnmanageChild ((Widget) m_widgetList[i]);
	224	XtDestroyWidget ((Widget) m_widgetList[i]);
	225	}
	226	if (m_noStrings)
	227	delete[] m_widgetList;
	228	m_widgetList = (WXWidget*) NULL;
	229	if (m_buttonWidget)
	230	XtVaSetValues ((Widget) m_buttonWidget, XmNmenuHistory, (Widget) NULL, NULL);
4bb6408c JS	231	m_noStrings = 0;
	232	}
	233
	234	int wxChoice::GetSelection() const
	235	{
f97c9854 JS	236	XmString text;
	237	char *s;
	238	Widget label = XmOptionButtonGadget ((Widget) m_buttonWidget);
	239	XtVaGetValues (label,
	240	XmNlabelString, &text,
	241	NULL);
	242
	243	if (XmStringGetLtoR (text, XmSTRING_DEFAULT_CHARSET, &s))
	244	{
	245	int i = 0;
	246	for (wxNode * node = m_stringList.First (); node; node = node->Next ())
	247	{
	248	char s1 = (char ) node->Data ();
	249	if (s1 == s \|\| strcmp (s1, s) == 0)
	250	{
	251	XmStringFree(text) ;
	252	XtFree (s);
	253	return i;
	254	}
	255	else
	256	i++;
	257	} // for()
	258
	259	XmStringFree(text) ;
	260	XtFree (s);
	261	return -1;
	262	}
	263	XmStringFree(text) ;
	264	return -1;
4bb6408c JS	265	}
	266
	267	void wxChoice::SetSelection(int n)
	268	{
f97c9854 JS	269	m_inSetValue = TRUE;
	270
	271	wxNode *node = m_stringList.Nth (n);
	272	if (node)
	273	{
	274	Dimension selectionWidth, selectionHeight;
	275
	276	char s = (char ) node->Data ();
	277	XmString text = XmStringCreateSimple (s);
	278	XtVaGetValues ((Widget) m_widgetList[n], XmNwidth, &selectionWidth, XmNheight, &selectionHeight, NULL);
	279	Widget label = XmOptionButtonGadget ((Widget) m_buttonWidget);
	280	XtVaSetValues (label,
	281	XmNlabelString, text,
	282	NULL);
	283	XmStringFree (text);
	284	XtVaSetValues ((Widget) m_buttonWidget,
	285	XmNwidth, selectionWidth, XmNheight, selectionHeight,
	286	XmNmenuHistory, (Widget) m_widgetList[n], NULL);
	287	}
	288	m_inSetValue = FALSE;
4bb6408c JS	289	}
	290
	291	int wxChoice::FindString(const wxString& s) const
	292	{
f97c9854 JS	293	int i = 0;
	294	for (wxNode * node = m_stringList.First (); node; node = node->Next ())
	295	{
	296	char s1 = (char ) node->Data ();
	297	if (s == s1)
	298	{
	299	return i;
	300	}
	301	else
	302	i++;
	303	}
	304	return -1;
4bb6408c JS	305	}
	306
	307	wxString wxChoice::GetString(int n) const
	308	{
f97c9854 JS	309	wxNode *node = m_stringList.Nth (n);
	310	if (node)
	311	return wxString((char *) node->Data ());
	312	else
	313	return wxEmptyString;
	314	}
	315
	316	void wxChoice::SetColumns(int n)
	317	{
	318	if (n<1) n = 1 ;
	319
	320	short numColumns = n ;
	321	Arg args[3];
	322
	323	XtSetArg(args[0], XmNnumColumns, numColumns);
	324	XtSetArg(args[1], XmNpacking, XmPACK_COLUMN);
	325	XtSetValues((Widget) m_menuWidget,args,2) ;
	326	}
	327
	328	int wxChoice::GetColumns(void) const
	329	{
	330	short numColumns ;
	331
	332	XtVaGetValues((Widget) m_menuWidget,XmNnumColumns,&numColumns,NULL) ;
	333	return numColumns ;
	334	}
	335
	336	void wxChoice::SetFocus()
	337	{
	338	XmProcessTraversal(XtParent((Widget)m_mainWidget), XmTRAVERSE_CURRENT);
4bb6408c JS	339	}
	340
	341	void wxChoice::SetSize(int x, int y, int width, int height, int sizeFlags)
	342	{
f97c9854 JS	343	XtVaSetValues((Widget) m_formWidget, XmNresizePolicy, XmRESIZE_ANY, NULL);
	344	bool managed = XtIsManaged((Widget) m_formWidget);
	345
	346	if (managed)
	347	XtUnmanageChild ((Widget) m_formWidget);
	348
	349	int actualWidth = width, actualHeight = height;
	350
	351	if (width > -1)
	352	{
	353	int i;
	354	for (i = 0; i < m_noStrings; i++)
	355	XtVaSetValues ((Widget) m_widgetList[i], XmNwidth, actualWidth, NULL);
	356	XtVaSetValues ((Widget) m_buttonWidget, XmNwidth, actualWidth,
	357	NULL);
	358	}
	359	if (height > -1)
	360	{
	361	int i;
	362	for (i = 0; i < m_noStrings; i++)
	363	XtVaSetValues ((Widget) m_widgetList[i], XmNheight, actualHeight, NULL);
	364	XtVaSetValues ((Widget) m_buttonWidget, XmNheight, actualHeight,
	365	NULL);
	366	}
	367
	368	if (managed)
	369	XtManageChild ((Widget) m_formWidget);
	370	XtVaSetValues((Widget) m_formWidget, XmNresizePolicy, XmRESIZE_NONE, NULL);
	371
	372	wxControl::SetSize (x, y, width, height, sizeFlags);
4bb6408c JS	373	}
	374
	375	wxString wxChoice::GetStringSelection () const
	376	{
	377	int sel = GetSelection ();
	378	if (sel > -1)
	379	return wxString(this->GetString (sel));
	380	else
f97c9854	381	return wxEmptyString;
4bb6408c JS	382	}
	383
	384	bool wxChoice::SetStringSelection (const wxString& s)
	385	{
	386	int sel = FindString (s);
	387	if (sel > -1)
	388	{
	389	SetSelection (sel);
	390	return TRUE;
	391	}
	392	else
	393	return FALSE;
	394	}
	395
	396	void wxChoice::Command(wxCommandEvent & event)
	397	{
	398	SetSelection (event.GetInt());
	399	ProcessCommand (event);
	400	}
	401
f97c9854 JS	402	void wxChoiceCallback (Widget w, XtPointer clientData,
	403	XtPointer ptr)
	404	{
	405	wxChoice item = (wxChoice ) clientData;
	406	if (item)
	407	{
a4294b78	408	if (item->InSetValue())
f97c9854 JS	409	return;
	410
	411	char *s = NULL;
	412	XtVaGetValues (w, XmNuserData, &s, NULL);
	413	if (s)
	414	{
	415	wxCommandEvent event (wxEVT_COMMAND_CHOICE_SELECTED);
	416	event.m_commandInt = item->FindString (s);
	417	// event.m_commandString = s;
	418	item->ProcessCommand (event);
	419	}
	420	}
	421	}
	422
0d57be45 JS	423	void wxChoice::ChangeFont()
0d57be45 JS	424	{
321db4b6 JS	425	// Note that this causes the widget to be resized back
	426	// to its original size! We therefore have to set the size
	427	// back again. TODO: a better way in Motif?
	428	if (m_windowFont.Ok())
	429	{
	430	int width, height, width1, height1;
	431	GetSize(& width, & height);
	432
	433	XmFontList fontList = (XmFontList) m_windowFont.GetFontList(1.0, XtDisplay((Widget) m_mainWidget));
	434	XtVaSetValues ((Widget) m_mainWidget, XmNfontList, fontList, NULL);
	435	XtVaSetValues ((Widget) m_buttonWidget, XmNfontList, fontList, NULL);
	436
	437	int i;
	438	for (i = 0; i < m_noStrings; i++)
	439	XtVaSetValues ((Widget) m_widgetList[i], XmNfontList, fontList, NULL);
	440	GetSize(& width1, & height1);
	441	if (width != width1 \|\| height != height1)
	442	{
	443	SetSize(-1, -1, width, height);
	444	}
	445	}
0d57be45 JS	446	}
	447
	448	void wxChoice::ChangeBackgroundColour()
	449	{
321db4b6 JS	450	DoChangeBackgroundColour(m_formWidget, m_backgroundColour);
	451	DoChangeBackgroundColour(m_buttonWidget, m_backgroundColour);
	452	DoChangeBackgroundColour(m_menuWidget, m_backgroundColour);
	453	int i;
	454	for (i = 0; i < m_noStrings; i++)
	455	DoChangeBackgroundColour(m_widgetList[i], m_backgroundColour);
0d57be45 JS	456	}
	457
	458	void wxChoice::ChangeForegroundColour()
	459	{
321db4b6 JS	460	DoChangeForegroundColour(m_formWidget, m_foregroundColour);
	461	DoChangeForegroundColour(m_buttonWidget, m_foregroundColour);
	462	DoChangeForegroundColour(m_menuWidget, m_foregroundColour);
	463	int i;
	464	for (i = 0; i < m_noStrings; i++)
	465	DoChangeForegroundColour(m_widgetList[i], m_foregroundColour);
0d57be45	466	}