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, wxControlWithItems)

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;
    PreCreation();

    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);

    PostCreation();
    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;
    }
}

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

// TODO auto-sorting is not supported by the code
int wxChoice::DoInsertItems(const wxArrayStringsAdapter& items,
                            unsigned int pos,
                            void **clientData, wxClientDataType type)
{
#ifndef XmNpositionIndex
    wxCHECK_MSG( pos == GetCount(), -1, wxT("insert not implemented"));
#endif

    const unsigned int numItems = items.GetCount();
    AllocClientData(numItems);
    for( unsigned int i = 0; i < numItems; ++i, ++pos )
    {
        Widget w = XtVaCreateManagedWidget (GetLabelText(items[i]),
#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 (items[i]);
        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( items[i] );
            XtVaSetValues (label,
                XmNlabelString, text(),
                NULL);
        }
        // need to ditch wxStringList for wxArrayString
        m_stringList.Insert(pos, MYcopystring(items[i]));
        m_noStrings ++;

        InsertNewItemClientData(pos, clientData, i, type);
    }

    return pos - 1;
}

void wxChoice::DoDeleteOneItem(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));
    wxChoiceBase::DoDeleteOneItem(n);

    XtDestroyWidget(w);
    m_noStrings--;
}

void wxChoice::DoClear()
{
    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);

    wxChoiceBase::DoClear();

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