src/gtk1/choice.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        choice.cpp
// Purpose:
// Author:      Robert Roebling
// Id:          $Id$
// Copyright:   (c) 1998 Robert Roebling
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////


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

#include "wx/choice.h"

#include "gdk/gdk.h"
#include "gtk/gtk.h"

//-----------------------------------------------------------------------------
// data
//-----------------------------------------------------------------------------

extern bool   g_blockEventsOnDrag;

//-----------------------------------------------------------------------------
// "activate"
//-----------------------------------------------------------------------------

static void gtk_choice_clicked_callback( GtkWidget *WXUNUSED(widget), wxChoice *choice )
{
  if (!choice->HasVMT())
      return;

  if (g_blockEventsOnDrag)
      return;

  wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, choice->GetId() );
  event.SetInt( choice->GetSelection() );
  event.SetString( choice->GetStringSelection() );
  event.SetEventObject(choice);
  choice->GetEventHandler()->ProcessEvent(event);
}

//-----------------------------------------------------------------------------
// wxChoice
//-----------------------------------------------------------------------------

IMPLEMENT_DYNAMIC_CLASS(wxChoice,wxControl)

wxChoice::wxChoice()
{
}

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 )
{
    m_needParent = TRUE;
#if (GTK_MINOR_VERSION > 0)
    m_acceptsFocus = TRUE;
#endif

    PreCreation( parent, id, pos, size, style, name );

    SetValidator( validator );

    m_widget = gtk_option_menu_new();

    wxSize newSize(size);
    if (newSize.x == -1)
        newSize.x = 80;
    if (newSize.y == -1)
        newSize.y = 26;
    SetSize( newSize.x, newSize.y );

    GtkWidget *menu = gtk_menu_new();

    for (int i = 0; i < n; i++)
    {
        m_clientDataList.Append( (wxObject*) NULL );
        m_clientObjectList.Append( (wxObject*) NULL );

        GtkWidget *item = gtk_menu_item_new_with_label( choices[i].mbc_str() );
        gtk_menu_append( GTK_MENU(menu), item );

        gtk_widget_show( item );

        gtk_signal_connect( GTK_OBJECT( item ), "activate",
          GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this );
    }
    gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu );

    m_parent->AddChild( this );

    (m_parent->m_insertCallback)( m_parent, this );

    PostCreation();

    SetBackgroundColour( parent->GetBackgroundColour() );
    SetForegroundColour( parent->GetForegroundColour() );
    SetFont( parent->GetFont() );

    Show( TRUE );

    return TRUE;
}

wxChoice::~wxChoice()
{
    Clear();
}

void wxChoice::AppendCommon( const wxString &item )
{
    wxCHECK_RET( m_widget != NULL, _T("invalid choice") );

    GtkWidget *menu = gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) );
    GtkWidget *menu_item = gtk_menu_item_new_with_label( item.mbc_str() );

    gtk_menu_append( GTK_MENU(menu), menu_item );

    if (GTK_WIDGET_REALIZED(m_widget))
    {
        gtk_widget_realize( menu_item );
        gtk_widget_realize( GTK_BIN(menu_item)->child );

        if (m_widgetStyle) ApplyWidgetStyle();
    }

    gtk_signal_connect( GTK_OBJECT( menu_item ), "activate",
      GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this );

    gtk_widget_show( menu_item );
}

void wxChoice::Append( const wxString &item )
{
    m_clientDataList.Append( (wxObject*) NULL );
    m_clientObjectList.Append( (wxObject*) NULL );

    AppendCommon( item );
}

void wxChoice::Append( const wxString &item, void *clientData )
{
    m_clientDataList.Append( (wxObject*) clientData );
    m_clientObjectList.Append( (wxObject*) NULL );

    AppendCommon( item );
}

void wxChoice::Append( const wxString &item, wxClientData *clientData )
{
    m_clientObjectList.Append( (wxObject*) clientData );
    m_clientDataList.Append( (wxObject*) NULL );

    AppendCommon( item );
}

void wxChoice::SetClientData( int n, void* clientData )
{
    wxCHECK_RET( m_widget != NULL, _T("invalid combobox") );

    wxNode *node = m_clientDataList.Nth( n );
    if (!node) return;

    node->SetData( (wxObject*) clientData );
}

void* wxChoice::GetClientData( int n )
{
    wxCHECK_MSG( m_widget != NULL, NULL, _T("invalid combobox") );

    wxNode *node = m_clientDataList.Nth( n );
    if (!node) return NULL;

    return node->Data();
}

void wxChoice::SetClientObject( int n, wxClientData* clientData )
{
    wxCHECK_RET( m_widget != NULL, _T("invalid combobox") );

    wxNode *node = m_clientObjectList.Nth( n );
    if (!node) return;

    wxClientData *cd = (wxClientData*) node->Data();
    if (cd) delete cd;

    node->SetData( (wxObject*) clientData );
}

wxClientData* wxChoice::GetClientObject( int n )
{
    wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, _T("invalid combobox") );

    wxNode *node = m_clientObjectList.Nth( n );
    if (!node) return (wxClientData*) NULL;

    return (wxClientData*) node->Data();
}

void wxChoice::Clear()
{
    wxCHECK_RET( m_widget != NULL, _T("invalid choice") );

    gtk_option_menu_remove_menu( GTK_OPTION_MENU(m_widget) );
    GtkWidget *menu = gtk_menu_new();
    gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu );

    wxNode *node = m_clientObjectList.First();
    while (node)
    {
        wxClientData *cd = (wxClientData*)node->Data();
        if (cd) delete cd;
        node = node->Next();
    }
    m_clientObjectList.Clear();

    m_clientDataList.Clear();
}

void wxChoice::Delete( int WXUNUSED(n) )
{
    wxFAIL_MSG( _T("wxChoice:Delete not implemented") );
}

int wxChoice::FindString( const wxString &string ) const
{
    wxCHECK_MSG( m_widget != NULL, -1, _T("invalid choice") );

    // If you read this code once and you think you understand
    // it, then you are very wrong. Robert Roebling.

    GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
    int count = 0;
    GList *child = menu_shell->children;
    while (child)
    {
        GtkBin *bin = GTK_BIN( child->data );
        GtkLabel *label = (GtkLabel *) NULL;
        if (bin->child) label = GTK_LABEL(bin->child);
        if (!label) label = GTK_LABEL( GTK_BUTTON(m_widget)->child );

        wxASSERT_MSG( label != NULL , _T("wxChoice: invalid label") );

       if (string == label->label)
           return count;

       child = child->next;
       count++;
    }

    return -1;
}

int wxChoice::GetColumns() const
{
    return 1;
}

int wxChoice::GetSelection()
{
    wxCHECK_MSG( m_widget != NULL, -1, _T("invalid choice") );

    GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
    int count = 0;
    GList *child = menu_shell->children;
    while (child)
    {
        GtkBin *bin = GTK_BIN( child->data );
        if (!bin->child) return count;
        child = child->next;
        count++;
    }

    wxFAIL_MSG( _T("wxChoice: no selection") );

    return -1;
}

wxString wxChoice::GetString( int n ) const
{
    wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid choice") );

    GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
    int count = 0;
    GList *child = menu_shell->children;
    while (child)
    {
        GtkBin *bin = GTK_BIN( child->data );
        if (count == n)
        {
            GtkLabel *label = (GtkLabel *) NULL;
            if (bin->child) label = GTK_LABEL(bin->child);
            if (!label) label = GTK_LABEL( GTK_BUTTON(m_widget)->child );

            wxASSERT_MSG( label != NULL , _T("wxChoice: invalid label") );

            return label->label;
        }
        child = child->next;
        count++;
    }

    wxFAIL_MSG( _T("wxChoice: invalid index in GetString()") );

    return "";
}

wxString wxChoice::GetStringSelection() const
{
    wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid choice") );

    GtkLabel *label = GTK_LABEL( GTK_BUTTON(m_widget)->child );

    wxASSERT_MSG( label != NULL , _T("wxChoice: invalid label") );

    return label->label;
}

int wxChoice::Number() const
{
    wxCHECK_MSG( m_widget != NULL, 0, _T("invalid choice") );

    GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
    int count = 0;
    GList *child = menu_shell->children;
    while (child)
    {
        count++;
        child = child->next;
    }
    return count;
}

void wxChoice::SetColumns( int WXUNUSED(n) )
{
}

void wxChoice::SetSelection( int n )
{
    wxCHECK_RET( m_widget != NULL, _T("invalid choice") );

    int tmp = n;
    gtk_option_menu_set_history( GTK_OPTION_MENU(m_widget), (gint)tmp );

    gtk_choice_clicked_callback( (GtkWidget *) NULL, this );
}

void wxChoice::SetStringSelection( const wxString &string )
{
    wxCHECK_RET( m_widget != NULL, _T("invalid choice") );

    int n = FindString( string );
    if (n != -1) SetSelection( n );
}

void wxChoice::ApplyWidgetStyle()
{
    SetWidgetStyle();

    GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );

    gtk_widget_set_style( m_widget, m_widgetStyle );
    gtk_widget_set_style( GTK_WIDGET( menu_shell ), m_widgetStyle );

    GList *child = menu_shell->children;
    while (child)
    {
        gtk_widget_set_style( GTK_WIDGET( child->data ), m_widgetStyle );

        GtkBin *bin = GTK_BIN( child->data );
        GtkWidget *label = (GtkWidget *) NULL;
        if (bin->child) label = bin->child;
        if (!label) label = GTK_BUTTON(m_widget)->child;

        gtk_widget_set_style( label, m_widgetStyle );

        child = child->next;
    }
}
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: choice.cpp
	3	// Purpose:
	4	// Author: Robert Roebling
	5	// Id: $Id$
	6	// Copyright: (c) 1998 Robert Roebling
	7	// Licence: wxWindows licence
	8	/////////////////////////////////////////////////////////////////////////////
	9
	10
	11	#ifdef __GNUG__
	12	#pragma implementation "choice.h"
	13	#endif
	14
	15	#include "wx/choice.h"
	16
	17	#include "gdk/gdk.h"
	18	#include "gtk/gtk.h"
	19
	20	//-----------------------------------------------------------------------------
	21	// data
	22	//-----------------------------------------------------------------------------
	23
	24	extern bool g_blockEventsOnDrag;
	25
	26	//-----------------------------------------------------------------------------
	27	// "activate"
	28	//-----------------------------------------------------------------------------
	29
	30	static void gtk_choice_clicked_callback( GtkWidget WXUNUSED(widget), wxChoice choice )
	31	{
	32	if (!choice->HasVMT())
	33	return;
	34
	35	if (g_blockEventsOnDrag)
	36	return;
	37
	38	wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, choice->GetId() );
	39	event.SetInt( choice->GetSelection() );
	40	event.SetString( choice->GetStringSelection() );
	41	event.SetEventObject(choice);
	42	choice->GetEventHandler()->ProcessEvent(event);
	43	}
	44
	45	//-----------------------------------------------------------------------------
	46	// wxChoice
	47	//-----------------------------------------------------------------------------
	48
	49	IMPLEMENT_DYNAMIC_CLASS(wxChoice,wxControl)
	50
	51	wxChoice::wxChoice()
	52	{
	53	}
	54
	55	bool wxChoice::Create( wxWindow *parent, wxWindowID id,
	56	const wxPoint &pos, const wxSize &size,
	57	int n, const wxString choices[],
	58	long style, const wxValidator& validator, const wxString &name )
	59	{
	60	m_needParent = TRUE;
	61	#if (GTK_MINOR_VERSION > 0)
	62	m_acceptsFocus = TRUE;
	63	#endif
	64
	65	PreCreation( parent, id, pos, size, style, name );
	66
	67	SetValidator( validator );
	68
	69	m_widget = gtk_option_menu_new();
	70
	71	wxSize newSize(size);
	72	if (newSize.x == -1)
	73	newSize.x = 80;
	74	if (newSize.y == -1)
	75	newSize.y = 26;
	76	SetSize( newSize.x, newSize.y );
	77
	78	GtkWidget *menu = gtk_menu_new();
	79
	80	for (int i = 0; i < n; i++)
	81	{
	82	m_clientDataList.Append( (wxObject*) NULL );
	83	m_clientObjectList.Append( (wxObject*) NULL );
	84
	85	GtkWidget *item = gtk_menu_item_new_with_label( choices[i].mbc_str() );
	86	gtk_menu_append( GTK_MENU(menu), item );
	87
	88	gtk_widget_show( item );
	89
	90	gtk_signal_connect( GTK_OBJECT( item ), "activate",
	91	GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this );
	92	}
	93	gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu );
	94
	95	m_parent->AddChild( this );
	96
	97	(m_parent->m_insertCallback)( m_parent, this );
	98
	99	PostCreation();
	100
	101	SetBackgroundColour( parent->GetBackgroundColour() );
	102	SetForegroundColour( parent->GetForegroundColour() );
	103	SetFont( parent->GetFont() );
	104
	105	Show( TRUE );
	106
	107	return TRUE;
	108	}
	109
	110	wxChoice::~wxChoice()
	111	{
	112	Clear();
	113	}
	114
	115	void wxChoice::AppendCommon( const wxString &item )
	116	{
	117	wxCHECK_RET( m_widget != NULL, _T("invalid choice") );
	118
	119	GtkWidget *menu = gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) );
	120	GtkWidget *menu_item = gtk_menu_item_new_with_label( item.mbc_str() );
	121
	122	gtk_menu_append( GTK_MENU(menu), menu_item );
	123
	124	if (GTK_WIDGET_REALIZED(m_widget))
	125	{
	126	gtk_widget_realize( menu_item );
	127	gtk_widget_realize( GTK_BIN(menu_item)->child );
	128
	129	if (m_widgetStyle) ApplyWidgetStyle();
	130	}
	131
	132	gtk_signal_connect( GTK_OBJECT( menu_item ), "activate",
	133	GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this );
	134
	135	gtk_widget_show( menu_item );
	136	}
	137
	138	void wxChoice::Append( const wxString &item )
	139	{
	140	m_clientDataList.Append( (wxObject*) NULL );
	141	m_clientObjectList.Append( (wxObject*) NULL );
	142
	143	AppendCommon( item );
	144	}
	145
	146	void wxChoice::Append( const wxString &item, void *clientData )
	147	{
	148	m_clientDataList.Append( (wxObject*) clientData );
	149	m_clientObjectList.Append( (wxObject*) NULL );
	150
	151	AppendCommon( item );
	152	}
	153
	154	void wxChoice::Append( const wxString &item, wxClientData *clientData )
	155	{
	156	m_clientObjectList.Append( (wxObject*) clientData );
	157	m_clientDataList.Append( (wxObject*) NULL );
	158
	159	AppendCommon( item );
	160	}
	161
	162	void wxChoice::SetClientData( int n, void* clientData )
	163	{
	164	wxCHECK_RET( m_widget != NULL, _T("invalid combobox") );
	165
	166	wxNode *node = m_clientDataList.Nth( n );
	167	if (!node) return;
	168
	169	node->SetData( (wxObject*) clientData );
	170	}
	171
	172	void* wxChoice::GetClientData( int n )
	173	{
	174	wxCHECK_MSG( m_widget != NULL, NULL, _T("invalid combobox") );
	175
	176	wxNode *node = m_clientDataList.Nth( n );
	177	if (!node) return NULL;
	178
	179	return node->Data();
	180	}
	181
	182	void wxChoice::SetClientObject( int n, wxClientData* clientData )
	183	{
	184	wxCHECK_RET( m_widget != NULL, _T("invalid combobox") );
	185
	186	wxNode *node = m_clientObjectList.Nth( n );
	187	if (!node) return;
	188
	189	wxClientData cd = (wxClientData) node->Data();
	190	if (cd) delete cd;
	191
	192	node->SetData( (wxObject*) clientData );
	193	}
	194
	195	wxClientData* wxChoice::GetClientObject( int n )
	196	{
	197	wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, _T("invalid combobox") );
	198
	199	wxNode *node = m_clientObjectList.Nth( n );
	200	if (!node) return (wxClientData*) NULL;
	201
	202	return (wxClientData*) node->Data();
	203	}
	204
	205	void wxChoice::Clear()
	206	{
	207	wxCHECK_RET( m_widget != NULL, _T("invalid choice") );
	208
	209	gtk_option_menu_remove_menu( GTK_OPTION_MENU(m_widget) );
	210	GtkWidget *menu = gtk_menu_new();
	211	gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu );
	212
	213	wxNode *node = m_clientObjectList.First();
	214	while (node)
	215	{
	216	wxClientData cd = (wxClientData)node->Data();
	217	if (cd) delete cd;
	218	node = node->Next();
	219	}
	220	m_clientObjectList.Clear();
	221
	222	m_clientDataList.Clear();
	223	}
	224
	225	void wxChoice::Delete( int WXUNUSED(n) )
	226	{
	227	wxFAIL_MSG( _T("wxChoice:Delete not implemented") );
	228	}
	229
	230	int wxChoice::FindString( const wxString &string ) const
	231	{
	232	wxCHECK_MSG( m_widget != NULL, -1, _T("invalid choice") );
	233
	234	// If you read this code once and you think you understand
	235	// it, then you are very wrong. Robert Roebling.
	236
	237	GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
	238	int count = 0;
	239	GList *child = menu_shell->children;
	240	while (child)
	241	{
	242	GtkBin *bin = GTK_BIN( child->data );
	243	GtkLabel label = (GtkLabel ) NULL;
	244	if (bin->child) label = GTK_LABEL(bin->child);
	245	if (!label) label = GTK_LABEL( GTK_BUTTON(m_widget)->child );
	246
	247	wxASSERT_MSG( label != NULL , _T("wxChoice: invalid label") );
	248
	249	if (string == label->label)
	250	return count;
	251
	252	child = child->next;
	253	count++;
	254	}
	255
	256	return -1;
	257	}
	258
	259	int wxChoice::GetColumns() const
	260	{
	261	return 1;
	262	}
	263
	264	int wxChoice::GetSelection()
	265	{
	266	wxCHECK_MSG( m_widget != NULL, -1, _T("invalid choice") );
	267
	268	GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
	269	int count = 0;
	270	GList *child = menu_shell->children;
	271	while (child)
	272	{
	273	GtkBin *bin = GTK_BIN( child->data );
	274	if (!bin->child) return count;
	275	child = child->next;
	276	count++;
	277	}
	278
	279	wxFAIL_MSG( _T("wxChoice: no selection") );
	280
	281	return -1;
	282	}
	283
	284	wxString wxChoice::GetString( int n ) const
	285	{
	286	wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid choice") );
	287
	288	GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
	289	int count = 0;
	290	GList *child = menu_shell->children;
	291	while (child)
	292	{
	293	GtkBin *bin = GTK_BIN( child->data );
	294	if (count == n)
	295	{
	296	GtkLabel label = (GtkLabel ) NULL;
	297	if (bin->child) label = GTK_LABEL(bin->child);
	298	if (!label) label = GTK_LABEL( GTK_BUTTON(m_widget)->child );
	299
	300	wxASSERT_MSG( label != NULL , _T("wxChoice: invalid label") );
	301
	302	return label->label;
	303	}
	304	child = child->next;
	305	count++;
	306	}
	307
	308	wxFAIL_MSG( _T("wxChoice: invalid index in GetString()") );
	309
	310	return "";
	311	}
	312
	313	wxString wxChoice::GetStringSelection() const
	314	{
	315	wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid choice") );
	316
	317	GtkLabel *label = GTK_LABEL( GTK_BUTTON(m_widget)->child );
	318
	319	wxASSERT_MSG( label != NULL , _T("wxChoice: invalid label") );
	320
	321	return label->label;
	322	}
	323
	324	int wxChoice::Number() const
	325	{
	326	wxCHECK_MSG( m_widget != NULL, 0, _T("invalid choice") );
	327
	328	GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
	329	int count = 0;
	330	GList *child = menu_shell->children;
	331	while (child)
	332	{
	333	count++;
	334	child = child->next;
	335	}
	336	return count;
	337	}
	338
	339	void wxChoice::SetColumns( int WXUNUSED(n) )
	340	{
	341	}
	342
	343	void wxChoice::SetSelection( int n )
	344	{
	345	wxCHECK_RET( m_widget != NULL, _T("invalid choice") );
	346
	347	int tmp = n;
	348	gtk_option_menu_set_history( GTK_OPTION_MENU(m_widget), (gint)tmp );
	349
	350	gtk_choice_clicked_callback( (GtkWidget *) NULL, this );
	351	}
	352
	353	void wxChoice::SetStringSelection( const wxString &string )
	354	{
	355	wxCHECK_RET( m_widget != NULL, _T("invalid choice") );
	356
	357	int n = FindString( string );
	358	if (n != -1) SetSelection( n );
	359	}
	360
	361	void wxChoice::ApplyWidgetStyle()
	362	{
	363	SetWidgetStyle();
	364
	365	GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
	366
	367	gtk_widget_set_style( m_widget, m_widgetStyle );
	368	gtk_widget_set_style( GTK_WIDGET( menu_shell ), m_widgetStyle );
	369
	370	GList *child = menu_shell->children;
	371	while (child)
	372	{
	373	gtk_widget_set_style( GTK_WIDGET( child->data ), m_widgetStyle );
	374
	375	GtkBin *bin = GTK_BIN( child->data );
	376	GtkWidget label = (GtkWidget ) NULL;
	377	if (bin->child) label = bin->child;
	378	if (!label) label = GTK_BUTTON(m_widget)->child;
	379
	380	gtk_widget_set_style( label, m_widgetStyle );
	381
	382	child = child->next;
	383	}
	384	}
	385