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

IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControlWithItems)

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