src/motif/choice.cpp

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

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

#if wxUSE_CHOICE

#ifdef __VMS
#define XtDisplay XTDISPLAY
#define XtParent XTPARENT
#endif

#include "wx/choice.h"

#ifndef WX_PRECOMP
    #include "wx/utils.h"
    #include "wx/arrstr.h"
#endif

#ifdef __VMS__
#pragma message disable nosimpint
#endif
#include <Xm/Xm.h>
#include <Xm/PushBG.h>
#include <Xm/PushB.h>
#include <Xm/RowColumn.h>
#ifdef __VMS__
#pragma message enable nosimpint
#endif

#include "wx/motif/private.h"

#define WIDTH_OVERHEAD 48
#define WIDTH_OVERHEAD_SUBTRACT 40
#define HEIGHT_OVERHEAD 15

IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControl)

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

wxChoice::wxChoice()
{
    Init();
}

void wxChoice::Init()
{
    m_noStrings = 0;
    m_buttonWidget = (WXWidget) 0;
    m_menuWidget = (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)
{
    if ( !CreateControl(parent, id, pos, size, style, validator, name) )
        return false;

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

    m_formWidget = (WXWidget) XtVaCreateManagedWidget(name.c_str(),
        xmRowColumnWidgetClass, parentWidget,
        XmNmarginHeight, 0,
        XmNmarginWidth, 0,
        XmNpacking, XmPACK_TIGHT,
        XmNorientation, XmHORIZONTAL,
        XmNresizeWidth, False,
        XmNresizeHeight, False,
        NULL);

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

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

    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,
                                                    wxMOTIF_STR("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
    // JACS, 24/1/99: this seems to cause a malloc crash later on, e.g.
    // in controls sample.
    //
    // Widget optionLabel = XmOptionLabelGadget ((Widget) m_buttonWidget);
    // XtUnmanageChild (optionLabel);
#endif
#endif

    wxSize bestSize = GetBestSize();
    if( size.x > 0 ) bestSize.x = size.x;
    if( size.y > 0 ) bestSize.y = size.y;

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

    ChangeFont(false);
    ChangeBackgroundColour();

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

    return true;
}

bool wxChoice::Create(wxWindow *parent, wxWindowID id,
                      const wxPoint& pos,
                      const wxSize& size,
                      const wxArrayString& choices,
                      long style,
                      const wxValidator& validator,
                      const wxString& name)
{
    wxCArrayString chs(choices);
    return Create(parent, id, pos, size, chs.GetCount(), chs.GetStrings(),
                  style, validator, name);
}

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

        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;
    }
    if ( HasClientObjectData() )
        m_clientDataDict.DestroyData();
}

static inline wxChar* MYcopystring(const wxChar* s)
{
    wxChar* copy = new wxChar[wxStrlen(s) + 1];
    return wxStrcpy(copy, s);
}

int wxChoice::DoInsert(const wxString& item, unsigned int pos)
{
#ifndef XmNpositionIndex
    wxCHECK_MSG( pos == GetCount(), -1, wxT("insert not implemented"));
#endif
    Widget w = XtVaCreateManagedWidget (GetLabelText(item),
#if wxUSE_GADGETS
        xmPushButtonGadgetClass, (Widget) m_menuWidget,
#else
        xmPushButtonWidgetClass, (Widget) m_menuWidget,
#endif
#ifdef XmNpositionIndex
        XmNpositionIndex, pos,
#endif
        NULL);

    wxDoChangeBackgroundColour((WXWidget) w, m_backgroundColour);

    if( m_font.Ok() )
        wxDoChangeFont( w, m_font );

    m_widgetArray.Insert(w, pos);

    char mnem = wxFindMnemonic (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);
        wxXmString text( item );
        XtVaSetValues (label,
            XmNlabelString, text(),
            NULL);
    }
    // need to ditch wxStringList for wxArrayString
    m_stringList.Insert(pos, MYcopystring(item));
    m_noStrings ++;

    return pos;
}

int wxChoice::DoAppend(const wxString& item)
{
    return DoInsert(item, GetCount());
}

void wxChoice::Delete(unsigned int n)
{
    Widget w = (Widget)m_widgetArray[n];
    XtRemoveCallback(w, XmNactivateCallback, (XtCallbackProc)wxChoiceCallback,
                     (XtPointer)this);
    m_stringList.Erase(m_stringList.Item(n));
    m_widgetArray.RemoveAt(size_t(n));
    m_clientDataDict.Delete(n, HasClientObjectData());

    XtDestroyWidget(w);
    m_noStrings--;
}

void wxChoice::Clear()
{
    m_stringList.Clear ();
    unsigned int i;
    for (i = 0; i < m_noStrings; i++)
    {
        XtRemoveCallback((Widget) m_widgetArray[i],
                         XmNactivateCallback, (XtCallbackProc)wxChoiceCallback,
                         (XtPointer)this);
        XtUnmanageChild ((Widget) m_widgetArray[i]);
        XtDestroyWidget ((Widget) m_widgetArray[i]);
    }
    m_widgetArray.Clear();
    if (m_buttonWidget)
        XtVaSetValues ((Widget) m_buttonWidget,
                       XmNmenuHistory, (Widget) NULL,
                       NULL);

    if ( HasClientObjectData() )
        m_clientDataDict.DestroyData();

    m_noStrings = 0;
}

int wxChoice::GetSelection() const
{
    XmString text;
    Widget label = XmOptionButtonGadget ((Widget) m_buttonWidget);
    XtVaGetValues (label,
        XmNlabelString, &text,
        NULL);
    wxXmString freeMe(text);
    wxString s = wxXmStringToString( text );

    if (!s.empty())
    {
        int i = 0;
        for (wxStringList::compatibility_iterator node = m_stringList.GetFirst ();
             node; node = node->GetNext ())
        {
            if (wxStrcmp(node->GetData(), s.c_str()) == 0)
            {
                return i;
            }
            else
                i++;
        }            // for()

        return -1;
    }
    return -1;
}

void wxChoice::SetSelection(int n)
{
    m_inSetValue = true;

    wxStringList::compatibility_iterator node = m_stringList.Item(n);
    if (node)
    {
#if 0
        Dimension selectionWidth, selectionHeight;
#endif
        wxXmString text( node->GetData() );
// MBN: this seems silly, at best, and causes wxChoices to be clipped:
//      will remove "soon"
#if 0
        XtVaGetValues ((Widget) m_widgetArray[n],
                       XmNwidth, &selectionWidth,
                       XmNheight, &selectionHeight,
                       NULL);
#endif
        Widget label = XmOptionButtonGadget ((Widget) m_buttonWidget);
        XtVaSetValues (label,
            XmNlabelString, text(),
            NULL);
#if 0
        XtVaSetValues ((Widget) m_buttonWidget,
            XmNwidth, selectionWidth, XmNheight, selectionHeight,
            XmNmenuHistory, (Widget) m_widgetArray[n], NULL);
#endif
    }
    m_inSetValue = false;
}

wxString wxChoice::GetString(unsigned int n) const
{
    wxStringList::compatibility_iterator node = m_stringList.Item(n);
    if (node)
        return node->GetData();
    else
        return wxEmptyString;
}

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

    short numColumns = (short)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::DoSetSize(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 - WIDTH_OVERHEAD_SUBTRACT,
        actualHeight = height - HEIGHT_OVERHEAD;

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

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

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

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

void wxChoiceCallback (Widget w, XtPointer clientData, XtPointer WXUNUSED(ptr))
{
    wxChoice *item = (wxChoice *) clientData;
    if (item)
    {
        if (item->InSetValue())
            return;

        int n = item->GetWidgets().Index(w);
        if (n != wxNOT_FOUND)
        {
            wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, item->GetId());
            event.SetEventObject(item);
            event.SetInt(n);
            event.SetString( item->GetStrings().Item(n)->GetData() );
            if ( item->HasClientObjectData() )
                event.SetClientObject( item->GetClientObject(n) );
            else if ( item->HasClientUntypedData() )
                event.SetClientData( item->GetClientData(n) );
            item->ProcessCommand (event);
        }
    }
}

void wxChoice::ChangeFont(bool keepOriginalSize)
{
    // 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_font.Ok())
    {
        Display* dpy = XtDisplay((Widget) m_mainWidget);
        int width, height, width1, height1;
        GetSize(& width, & height);

        WXString fontTag = wxFont::GetFontTag();

        XtVaSetValues ((Widget) m_formWidget,
                       fontTag, m_font.GetFontTypeC(dpy),
                       NULL);
        XtVaSetValues ((Widget) m_buttonWidget,
                       fontTag, m_font.GetFontTypeC(dpy),
                       NULL);

        for( unsigned int i = 0; i < m_noStrings; ++i )
            XtVaSetValues( (Widget)m_widgetArray[i],
                           fontTag, m_font.GetFontTypeC(dpy),
                           NULL );

        GetSize(& width1, & height1);
        if (keepOriginalSize && (width != width1 || height != height1))
        {
            SetSize(wxDefaultCoord, wxDefaultCoord, width, height);
        }
    }
}

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

void wxChoice::ChangeForegroundColour()
{
    wxDoChangeForegroundColour(m_formWidget, m_foregroundColour);
    wxDoChangeForegroundColour(m_buttonWidget, m_foregroundColour);
    wxDoChangeForegroundColour(m_menuWidget, m_foregroundColour);
    unsigned int i;
    for (i = 0; i < m_noStrings; i++)
        wxDoChangeForegroundColour(m_widgetArray[i], m_foregroundColour);
}

unsigned int wxChoice::GetCount() const
{
    return m_noStrings;
}

void wxChoice::DoSetItemClientData(unsigned int n, void* clientData)
{
    m_clientDataDict.Set(n, (wxClientData*)clientData, false);
}

void* wxChoice::DoGetItemClientData(unsigned int n) const
{
    return (void*)m_clientDataDict.Get(n);
}

void wxChoice::DoSetItemClientObject(unsigned int n, wxClientData* clientData)
{
    // don't delete, wxItemContainer does that for us
    m_clientDataDict.Set(n, clientData, false);
}

wxClientData* wxChoice::DoGetItemClientObject(unsigned int n) const
{
    return m_clientDataDict.Get(n);
}

void wxChoice::SetString(unsigned int WXUNUSED(n), const wxString& WXUNUSED(s))
{
    wxFAIL_MSG( wxT("wxChoice::SetString not implemented") );
}

wxSize wxChoice::GetItemsSize() const
{
    int x, y, mx = 0, my = 0;

    // get my
    GetTextExtent( "|", &x, &my );

    wxStringList::compatibility_iterator curr = m_stringList.GetFirst();
    while( curr )
    {
        GetTextExtent( curr->GetData(), &x, &y );
        mx = wxMax( mx, x );
        my = wxMax( my, y );
        curr = curr->GetNext();
    }

    return wxSize( mx, my );
}

wxSize wxChoice::DoGetBestSize() const
{
    wxSize items = GetItemsSize();
    // FIXME arbitrary constants
    return wxSize( ( items.x ? items.x + WIDTH_OVERHEAD : 120 ),
                     items.y + HEIGHT_OVERHEAD );
}

#endif // wxUSE_CHOICE
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: src/motif/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	// For compilers that support precompilation, includes "wx.h".
	13	#include "wx/wxprec.h"
	14
	15	#if wxUSE_CHOICE
	16
	17	#ifdef __VMS
	18	#define XtDisplay XTDISPLAY
	19	#define XtParent XTPARENT
	20	#endif
	21
	22	#include "wx/choice.h"
	23
	24	#ifndef WX_PRECOMP
	25	#include "wx/utils.h"
	26	#include "wx/arrstr.h"
	27	#endif
	28
	29	#ifdef __VMS__
	30	#pragma message disable nosimpint
	31	#endif
	32	#include <Xm/Xm.h>
	33	#include <Xm/PushBG.h>
	34	#include <Xm/PushB.h>
	35	#include <Xm/RowColumn.h>
	36	#ifdef __VMS__
	37	#pragma message enable nosimpint
	38	#endif
	39
	40	#include "wx/motif/private.h"
	41
	42	#define WIDTH_OVERHEAD 48
	43	#define WIDTH_OVERHEAD_SUBTRACT 40
	44	#define HEIGHT_OVERHEAD 15
	45
	46	IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControl)
	47
	48	void wxChoiceCallback (Widget w, XtPointer clientData,
	49	XtPointer ptr);
	50
	51	wxChoice::wxChoice()
	52	{
	53	Init();
	54	}
	55
	56	void wxChoice::Init()
	57	{
	58	m_noStrings = 0;
	59	m_buttonWidget = (WXWidget) 0;
	60	m_menuWidget = (WXWidget) 0;
	61	m_formWidget = (WXWidget) 0;
	62	}
	63
	64	bool wxChoice::Create(wxWindow *parent, wxWindowID id,
	65	const wxPoint& pos,
	66	const wxSize& size,
	67	int n, const wxString choices[],
	68	long style,
	69	const wxValidator& validator,
	70	const wxString& name)
	71	{
	72	if ( !CreateControl(parent, id, pos, size, style, validator, name) )
	73	return false;
	74
	75	Widget parentWidget = (Widget) parent->GetClientWidget();
	76
	77	m_formWidget = (WXWidget) XtVaCreateManagedWidget(name.c_str(),
	78	xmRowColumnWidgetClass, parentWidget,
	79	XmNmarginHeight, 0,
	80	XmNmarginWidth, 0,
	81	XmNpacking, XmPACK_TIGHT,
	82	XmNorientation, XmHORIZONTAL,
	83	XmNresizeWidth, False,
	84	XmNresizeHeight, False,
	85	NULL);
	86
	87	XtVaSetValues ((Widget) m_formWidget, XmNspacing, 0, NULL);
	88
	89	/*
	90	* Create the popup menu
	91	*/
	92	m_menuWidget = (WXWidget) XmCreatePulldownMenu ((Widget) m_formWidget,
	93	wxMOTIF_STR("choiceMenu"),
	94	NULL, 0);
	95
	96	if (n > 0)
	97	{
	98	int i;
	99	for (i = 0; i < n; i++)
	100	Append (choices[i]);
	101	}
	102
	103	/*
	104	* Create button
	105	*/
	106	Arg args[10];
	107	Cardinal argcnt = 0;
	108
	109	XtSetArg (args[argcnt], XmNsubMenuId, (Widget) m_menuWidget); ++argcnt;
	110	XtSetArg (args[argcnt], XmNmarginWidth, 0); ++argcnt;
	111	XtSetArg (args[argcnt], XmNmarginHeight, 0); ++argcnt;
	112	XtSetArg (args[argcnt], XmNpacking, XmPACK_TIGHT); ++argcnt;
	113	m_buttonWidget = (WXWidget) XmCreateOptionMenu ((Widget) m_formWidget,
	114	wxMOTIF_STR("choiceButton"),
	115	args, argcnt);
	116
	117	m_mainWidget = m_buttonWidget;
	118
	119	XtManageChild ((Widget) m_buttonWidget);
	120
	121	// New code from Roland Haenel (roland_haenel@ac.cybercity.de)
	122	// Some time ago, I reported a problem with wxChoice-items under
	123	// Linux and Motif 2.0 (they caused sporadic GPFs). Now it seems
	124	// that I have found the code responsible for this behaviour.
	125	#if XmVersion >= 1002
	126	#if XmVersion < 2000
	127	// JACS, 24/1/99: this seems to cause a malloc crash later on, e.g.
	128	// in controls sample.
	129	//
	130	// Widget optionLabel = XmOptionLabelGadget ((Widget) m_buttonWidget);
	131	// XtUnmanageChild (optionLabel);
	132	#endif
	133	#endif
	134
	135	wxSize bestSize = GetBestSize();
	136	if( size.x > 0 ) bestSize.x = size.x;
	137	if( size.y > 0 ) bestSize.y = size.y;
	138
	139	XtVaSetValues((Widget) m_formWidget, XmNresizePolicy, XmRESIZE_NONE, NULL);
	140
	141	ChangeFont(false);
	142	ChangeBackgroundColour();
	143
	144	AttachWidget (parent, m_buttonWidget, m_formWidget,
	145	pos.x, pos.y, bestSize.x, bestSize.y);
	146
	147	return true;
	148	}
	149
	150	bool wxChoice::Create(wxWindow *parent, wxWindowID id,
	151	const wxPoint& pos,
	152	const wxSize& size,
	153	const wxArrayString& choices,
	154	long style,
	155	const wxValidator& validator,
	156	const wxString& name)
	157	{
	158	wxCArrayString chs(choices);
	159	return Create(parent, id, pos, size, chs.GetCount(), chs.GetStrings(),
	160	style, validator, name);
	161	}
	162
	163	wxChoice::~wxChoice()
	164	{
	165	// For some reason destroying the menuWidget
	166	// can cause crashes on some machines. It will
	167	// be deleted implicitly by deleting the parent form
	168	// anyway.
	169	// XtDestroyWidget (menuWidget);
	170
	171	if (GetMainWidget())
	172	{
	173	DetachWidget(GetMainWidget()); // Removes event handlers
	174	DetachWidget(m_formWidget);
	175
	176	XtDestroyWidget((Widget) m_formWidget);
	177	m_formWidget = (WXWidget) 0;
	178
	179	// Presumably the other widgets have been deleted now, via the form
	180	m_mainWidget = (WXWidget) 0;
	181	m_buttonWidget = (WXWidget) 0;
	182	}
	183	if ( HasClientObjectData() )
	184	m_clientDataDict.DestroyData();
	185	}
	186
	187	static inline wxChar* MYcopystring(const wxChar* s)
	188	{
	189	wxChar* copy = new wxChar[wxStrlen(s) + 1];
	190	return wxStrcpy(copy, s);
	191	}
	192
	193	int wxChoice::DoInsert(const wxString& item, unsigned int pos)
	194	{
	195	#ifndef XmNpositionIndex
	196	wxCHECK_MSG( pos == GetCount(), -1, wxT("insert not implemented"));
	197	#endif
	198	Widget w = XtVaCreateManagedWidget (GetLabelText(item),
	199	#if wxUSE_GADGETS
	200	xmPushButtonGadgetClass, (Widget) m_menuWidget,
	201	#else
	202	xmPushButtonWidgetClass, (Widget) m_menuWidget,
	203	#endif
	204	#ifdef XmNpositionIndex
	205	XmNpositionIndex, pos,
	206	#endif
	207	NULL);
	208
	209	wxDoChangeBackgroundColour((WXWidget) w, m_backgroundColour);
	210
	211	if( m_font.Ok() )
	212	wxDoChangeFont( w, m_font );
	213
	214	m_widgetArray.Insert(w, pos);
	215
	216	char mnem = wxFindMnemonic (item);
	217	if (mnem != 0)
	218	XtVaSetValues (w, XmNmnemonic, mnem, NULL);
	219
	220	XtAddCallback (w, XmNactivateCallback,
	221	(XtCallbackProc) wxChoiceCallback,
	222	(XtPointer) this);
	223
	224	if (m_noStrings == 0 && m_buttonWidget)
	225	{
	226	XtVaSetValues ((Widget) m_buttonWidget, XmNmenuHistory, w, NULL);
	227	Widget label = XmOptionButtonGadget ((Widget) m_buttonWidget);
	228	wxXmString text( item );
	229	XtVaSetValues (label,
	230	XmNlabelString, text(),
	231	NULL);
	232	}
	233	// need to ditch wxStringList for wxArrayString
	234	m_stringList.Insert(pos, MYcopystring(item));
	235	m_noStrings ++;
	236
	237	return pos;
	238	}
	239
	240	int wxChoice::DoAppend(const wxString& item)
	241	{
	242	return DoInsert(item, GetCount());
	243	}
	244
	245	void wxChoice::Delete(unsigned int n)
	246	{
	247	Widget w = (Widget)m_widgetArray[n];
	248	XtRemoveCallback(w, XmNactivateCallback, (XtCallbackProc)wxChoiceCallback,
	249	(XtPointer)this);
	250	m_stringList.Erase(m_stringList.Item(n));
	251	m_widgetArray.RemoveAt(size_t(n));
	252	m_clientDataDict.Delete(n, HasClientObjectData());
	253
	254	XtDestroyWidget(w);
	255	m_noStrings--;
	256	}
	257
	258	void wxChoice::Clear()
	259	{
	260	m_stringList.Clear ();
	261	unsigned int i;
	262	for (i = 0; i < m_noStrings; i++)
	263	{
	264	XtRemoveCallback((Widget) m_widgetArray[i],
	265	XmNactivateCallback, (XtCallbackProc)wxChoiceCallback,
	266	(XtPointer)this);
	267	XtUnmanageChild ((Widget) m_widgetArray[i]);
	268	XtDestroyWidget ((Widget) m_widgetArray[i]);
	269	}
	270	m_widgetArray.Clear();
	271	if (m_buttonWidget)
	272	XtVaSetValues ((Widget) m_buttonWidget,
	273	XmNmenuHistory, (Widget) NULL,
	274	NULL);
	275
	276	if ( HasClientObjectData() )
	277	m_clientDataDict.DestroyData();
	278
	279	m_noStrings = 0;
	280	}
	281
	282	int wxChoice::GetSelection() const
	283	{
	284	XmString text;
	285	Widget label = XmOptionButtonGadget ((Widget) m_buttonWidget);
	286	XtVaGetValues (label,
	287	XmNlabelString, &text,
	288	NULL);
	289	wxXmString freeMe(text);
	290	wxString s = wxXmStringToString( text );
	291
	292	if (!s.empty())
	293	{
	294	int i = 0;
	295	for (wxStringList::compatibility_iterator node = m_stringList.GetFirst ();
	296	node; node = node->GetNext ())
	297	{
	298	if (wxStrcmp(node->GetData(), s.c_str()) == 0)
	299	{
	300	return i;
	301	}
	302	else
	303	i++;
	304	} // for()
	305
	306	return -1;
	307	}
	308	return -1;
	309	}
	310
	311	void wxChoice::SetSelection(int n)
	312	{
	313	m_inSetValue = true;
	314
	315	wxStringList::compatibility_iterator node = m_stringList.Item(n);
	316	if (node)
	317	{
	318	#if 0
	319	Dimension selectionWidth, selectionHeight;
	320	#endif
	321	wxXmString text( node->GetData() );
	322	// MBN: this seems silly, at best, and causes wxChoices to be clipped:
	323	// will remove "soon"
	324	#if 0
	325	XtVaGetValues ((Widget) m_widgetArray[n],
	326	XmNwidth, &selectionWidth,
	327	XmNheight, &selectionHeight,
	328	NULL);
	329	#endif
	330	Widget label = XmOptionButtonGadget ((Widget) m_buttonWidget);
	331	XtVaSetValues (label,
	332	XmNlabelString, text(),
	333	NULL);
	334	#if 0
	335	XtVaSetValues ((Widget) m_buttonWidget,
	336	XmNwidth, selectionWidth, XmNheight, selectionHeight,
	337	XmNmenuHistory, (Widget) m_widgetArray[n], NULL);
	338	#endif
	339	}
	340	m_inSetValue = false;
	341	}
	342
	343	wxString wxChoice::GetString(unsigned int n) const
	344	{
	345	wxStringList::compatibility_iterator node = m_stringList.Item(n);
	346	if (node)
	347	return node->GetData();
	348	else
	349	return wxEmptyString;
	350	}
	351
	352	void wxChoice::SetColumns(int n)
	353	{
	354	if (n<1) n = 1 ;
	355
	356	short numColumns = (short)n ;
	357	Arg args[3];
	358
	359	XtSetArg(args[0], XmNnumColumns, numColumns);
	360	XtSetArg(args[1], XmNpacking, XmPACK_COLUMN);
	361	XtSetValues((Widget) m_menuWidget,args,2) ;
	362	}
	363
	364	int wxChoice::GetColumns(void) const
	365	{
	366	short numColumns ;
	367
	368	XtVaGetValues((Widget) m_menuWidget,XmNnumColumns,&numColumns,NULL) ;
	369	return numColumns ;
	370	}
	371
	372	void wxChoice::SetFocus()
	373	{
	374	XmProcessTraversal(XtParent((Widget)m_mainWidget), XmTRAVERSE_CURRENT);
	375	}
	376
	377	void wxChoice::DoSetSize(int x, int y, int width, int height, int sizeFlags)
	378	{
	379	XtVaSetValues((Widget) m_formWidget, XmNresizePolicy, XmRESIZE_ANY, NULL);
	380	bool managed = XtIsManaged((Widget) m_formWidget);
	381
	382	if (managed)
	383	XtUnmanageChild ((Widget) m_formWidget);
	384
	385	int actualWidth = width - WIDTH_OVERHEAD_SUBTRACT,
	386	actualHeight = height - HEIGHT_OVERHEAD;
	387
	388	if (width > -1)
	389	{
	390	unsigned int i;
	391	for (i = 0; i < m_noStrings; i++)
	392	XtVaSetValues ((Widget) m_widgetArray[i],
	393	XmNwidth, actualWidth,
	394	NULL);
	395	XtVaSetValues ((Widget) m_buttonWidget, XmNwidth, actualWidth,
	396	NULL);
	397	}
	398	if (height > -1)
	399	{
	400	#if 0
	401	unsigned int i;
	402	for (i = 0; i < m_noStrings; i++)
	403	XtVaSetValues ((Widget) m_widgetArray[i],
	404	XmNheight, actualHeight,
	405	NULL);
	406	#endif
	407	XtVaSetValues ((Widget) m_buttonWidget, XmNheight, actualHeight,
	408	NULL);
	409	}
	410
	411	if (managed)
	412	XtManageChild ((Widget) m_formWidget);
	413	XtVaSetValues((Widget) m_formWidget, XmNresizePolicy, XmRESIZE_NONE, NULL);
	414
	415	wxControl::DoSetSize (x, y, width, height, sizeFlags);
	416	}
	417
	418	void wxChoice::Command(wxCommandEvent & event)
	419	{
	420	SetSelection (event.GetInt());
	421	ProcessCommand (event);
	422	}
	423
	424	void wxChoiceCallback (Widget w, XtPointer clientData, XtPointer WXUNUSED(ptr))
	425	{
	426	wxChoice item = (wxChoice ) clientData;
	427	if (item)
	428	{
	429	if (item->InSetValue())
	430	return;
	431
	432	int n = item->GetWidgets().Index(w);
	433	if (n != wxNOT_FOUND)
	434	{
	435	wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, item->GetId());
	436	event.SetEventObject(item);
	437	event.SetInt(n);
	438	event.SetString( item->GetStrings().Item(n)->GetData() );
	439	if ( item->HasClientObjectData() )
	440	event.SetClientObject( item->GetClientObject(n) );
	441	else if ( item->HasClientUntypedData() )
	442	event.SetClientData( item->GetClientData(n) );
	443	item->ProcessCommand (event);
	444	}
	445	}
	446	}
	447
	448	void wxChoice::ChangeFont(bool keepOriginalSize)
	449	{
	450	// Note that this causes the widget to be resized back
	451	// to its original size! We therefore have to set the size
	452	// back again. TODO: a better way in Motif?
	453	if (m_font.Ok())
	454	{
	455	Display* dpy = XtDisplay((Widget) m_mainWidget);
	456	int width, height, width1, height1;
	457	GetSize(& width, & height);
	458
	459	WXString fontTag = wxFont::GetFontTag();
	460
	461	XtVaSetValues ((Widget) m_formWidget,
	462	fontTag, m_font.GetFontTypeC(dpy),
	463	NULL);
	464	XtVaSetValues ((Widget) m_buttonWidget,
	465	fontTag, m_font.GetFontTypeC(dpy),
	466	NULL);
	467
	468	for( unsigned int i = 0; i < m_noStrings; ++i )
	469	XtVaSetValues( (Widget)m_widgetArray[i],
	470	fontTag, m_font.GetFontTypeC(dpy),
	471	NULL );
	472
	473	GetSize(& width1, & height1);
	474	if (keepOriginalSize && (width != width1 \|\| height != height1))
	475	{
	476	SetSize(wxDefaultCoord, wxDefaultCoord, width, height);
	477	}
	478	}
	479	}
	480
	481	void wxChoice::ChangeBackgroundColour()
	482	{
	483	wxDoChangeBackgroundColour(m_formWidget, m_backgroundColour);
	484	wxDoChangeBackgroundColour(m_buttonWidget, m_backgroundColour);
	485	wxDoChangeBackgroundColour(m_menuWidget, m_backgroundColour);
	486	unsigned int i;
	487	for (i = 0; i < m_noStrings; i++)
	488	wxDoChangeBackgroundColour(m_widgetArray[i], m_backgroundColour);
	489	}
	490
	491	void wxChoice::ChangeForegroundColour()
	492	{
	493	wxDoChangeForegroundColour(m_formWidget, m_foregroundColour);
	494	wxDoChangeForegroundColour(m_buttonWidget, m_foregroundColour);
	495	wxDoChangeForegroundColour(m_menuWidget, m_foregroundColour);
	496	unsigned int i;
	497	for (i = 0; i < m_noStrings; i++)
	498	wxDoChangeForegroundColour(m_widgetArray[i], m_foregroundColour);
	499	}
	500
	501	unsigned int wxChoice::GetCount() const
	502	{
	503	return m_noStrings;
	504	}
	505
	506	void wxChoice::DoSetItemClientData(unsigned int n, void* clientData)
	507	{
	508	m_clientDataDict.Set(n, (wxClientData*)clientData, false);
	509	}
	510
	511	void* wxChoice::DoGetItemClientData(unsigned int n) const
	512	{
	513	return (void*)m_clientDataDict.Get(n);
	514	}
	515
	516	void wxChoice::DoSetItemClientObject(unsigned int n, wxClientData* clientData)
	517	{
	518	// don't delete, wxItemContainer does that for us
	519	m_clientDataDict.Set(n, clientData, false);
	520	}
	521
	522	wxClientData* wxChoice::DoGetItemClientObject(unsigned int n) const
	523	{
	524	return m_clientDataDict.Get(n);
	525	}
	526
	527	void wxChoice::SetString(unsigned int WXUNUSED(n), const wxString& WXUNUSED(s))
	528	{
	529	wxFAIL_MSG( wxT("wxChoice::SetString not implemented") );
	530	}
	531
	532	wxSize wxChoice::GetItemsSize() const
	533	{
	534	int x, y, mx = 0, my = 0;
	535
	536	// get my
	537	GetTextExtent( "\|", &x, &my );
	538
	539	wxStringList::compatibility_iterator curr = m_stringList.GetFirst();
	540	while( curr )
	541	{
	542	GetTextExtent( curr->GetData(), &x, &y );
	543	mx = wxMax( mx, x );
	544	my = wxMax( my, y );
	545	curr = curr->GetNext();
	546	}
	547
	548	return wxSize( mx, my );
	549	}
	550
	551	wxSize wxChoice::DoGetBestSize() const
	552	{
	553	wxSize items = GetItemsSize();
	554	// FIXME arbitrary constants
	555	return wxSize( ( items.x ? items.x + WIDTH_OVERHEAD : 120 ),
	556	items.y + HEIGHT_OVERHEAD );
	557	}
	558
	559	#endif // wxUSE_CHOICE