src/gtk/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"

//-----------------------------------------------------------------------------
// 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() );
  wxString tmp( choice->GetStringSelection() );
  event.SetString( WXSTRINGCAST(tmp) );
  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;

    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] );
        gtk_menu_append( GTK_MENU(menu), item );

        gtk_widget_realize( item );
        gtk_widget_realize( GTK_BIN(item)->child );

        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() );

    Show( TRUE );

    return TRUE;
}

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

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

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

    gtk_menu_append( GTK_MENU(menu), menu_item );

    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, "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, "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, "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, "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, "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( "wxChoice:Delete not implemented" );
}

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

       if (string == label->label) return count;
       child = child->next;
       count++;
    }

    wxFAIL_MSG( "wxChoice: string not found" );

    return -1;
}

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

int wxChoice::GetSelection()
{
    wxCHECK_MSG( m_widget != NULL, -1, "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( "wxChoice: no selection" );

    return -1;
}

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

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

    wxFAIL_MSG( "wxChoice: string not found" );

    return "";
}

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

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

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

    return label->label;
}

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