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

#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

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

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

void wxChoice::Init()
{
    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_stringArray.GetCount() == 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);
        }

        m_stringArray.Insert(items[i], pos);

        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_stringArray.RemoveAt(size_t(n));
    m_widgetArray.RemoveAt(size_t(n));
    wxChoiceBase::DoDeleteOneItem(n);

    XtDestroyWidget(w);
}

void wxChoice::DoClear()
{
    m_stringArray.Clear();

    unsigned int i;
    for (i = 0; i < m_stringArray.GetCount(); 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();
}

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())
    {
        for (size_t i=0; i<m_stringArray.GetCount(); i++)
            if (m_stringArray[i] == s)
                return i;

        return wxNOT_FOUND;
    }

    return wxNOT_FOUND;
}

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

#if 0
    Dimension selectionWidth, selectionHeight;
#endif
    wxXmString text( m_stringArray[n] );
// 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
{
    return m_stringArray[n];
}

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_stringArray.GetCount(); 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_stringArray.GetCount(); 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) );
            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_stringArray.GetCount(); ++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_stringArray.GetCount(); 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_stringArray.GetCount(); i++)
        wxDoChangeForegroundColour(m_widgetArray[i], m_foregroundColour);
}

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

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 );

    for (size_t i=0; i<m_stringArray.GetCount(); i++)
    {
        GetTextExtent( m_stringArray[i], &x, &y );
        mx = wxMax( mx, x );
        my = wxMax( my, y );
    }

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