src/gtk/combobox.cpp

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

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

#include "wx/combobox.h"

#if wxUSE_COMBOBOX

#include "wx/settings.h"
#include "wx/intl.h"

#include "wx/textctrl.h"    // for wxEVT_COMMAND_TEXT_UPDATED

#include <gdk/gdk.h>
#include <gtk/gtk.h>

//-----------------------------------------------------------------------------
// idle system
//-----------------------------------------------------------------------------

extern void wxapp_install_idle_handler();
extern bool g_isIdle;

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

extern bool   g_blockEventsOnDrag;

//-----------------------------------------------------------------------------
// "select"
//-----------------------------------------------------------------------------

static void
gtk_combo_clicked_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
{
    if (g_isIdle) wxapp_install_idle_handler();

    if (!combo->m_hasVMT) return;

    if (g_blockEventsOnDrag) return;

    if (combo->m_alreadySent)
    {
        combo->m_alreadySent = FALSE;
        return;
    }

    combo->m_alreadySent = TRUE;

    wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() );
    event.SetInt( combo->GetSelection() );
    event.SetString( combo->GetStringSelection() );
    event.SetEventObject( combo );

    combo->GetEventHandler()->ProcessEvent( event );
}

//-----------------------------------------------------------------------------
//  "changed"
//-----------------------------------------------------------------------------

static void
gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
{
    if (g_isIdle) wxapp_install_idle_handler();

    if (!combo->m_hasVMT) return;

    wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() );
    event.SetString( combo->GetValue() );
    event.SetEventObject( combo );
    combo->GetEventHandler()->ProcessEvent( event );
}

//-----------------------------------------------------------------------------
// wxComboBox
//-----------------------------------------------------------------------------

IMPLEMENT_DYNAMIC_CLASS(wxComboBox,wxControl)

BEGIN_EVENT_TABLE(wxComboBox, wxControl)
    EVT_SIZE(wxComboBox::OnSize)
    EVT_CHAR(wxComboBox::OnChar)
END_EVENT_TABLE()

bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
                         const wxPoint& pos, const wxSize& size,
                         int n, const wxString choices[],
                         long style, const wxValidator& validator,
                         const wxString& name )
{
    m_alreadySent = FALSE;
    m_needParent = TRUE;
    m_acceptsFocus = TRUE;

    if (!PreCreation( parent, pos, size ) ||
        !CreateBase( parent, id, pos, size, style, validator, name ))
    {
        wxFAIL_MSG( wxT("wxComboBox creation failed") );
        return FALSE;
    }

    m_widget = gtk_combo_new();

    // make it more useable
    gtk_combo_set_use_arrows_always( GTK_COMBO(m_widget), TRUE );

    // and case-sensitive
    gtk_combo_set_case_sensitive( GTK_COMBO(m_widget), TRUE );


    GtkWidget *list = GTK_COMBO(m_widget)->list;

    for (int i = 0; i < n; i++)
    {
        /* don't send first event, which GTK sends aways when
           inserting the first item */
        m_alreadySent = TRUE;

        GtkWidget *list_item = gtk_list_item_new_with_label( choices[i].mbc_str() );

        m_clientDataList.Append( (wxObject*)NULL );
        m_clientObjectList.Append( (wxObject*)NULL );

        gtk_container_add( GTK_CONTAINER(list), list_item );

        gtk_signal_connect( GTK_OBJECT(list_item), "select",
           GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );

        gtk_widget_show( list_item );
    }

    m_parent->DoAddChild( this );

    PostCreation();

    ConnectWidget( GTK_COMBO(m_widget)->button );

    if (!value.IsNull()) SetValue( value );

    if (style & wxCB_READONLY)
        gtk_entry_set_editable( GTK_ENTRY( GTK_COMBO(m_widget)->entry ), FALSE );

    gtk_signal_connect( GTK_OBJECT(GTK_COMBO(m_widget)->entry), "changed",
      GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);

    wxSize size_best( DoGetBestSize() );
    wxSize new_size( size );
    if (new_size.x == -1)
        new_size.x = size_best.x;
    if (new_size.y == -1)
        new_size.y = size_best.y;
    if (new_size.y > size_best.y)
        new_size.y = size_best.y;
    if ((new_size.x != size.x) || (new_size.y != size.y))
        SetSize( new_size.x, new_size.y );

    SetBackgroundColour( wxSystemSettings::GetSystemColour( wxSYS_COLOUR_WINDOW ) );
    SetForegroundColour( parent->GetForegroundColour() );

    Show( TRUE );

    return TRUE;
}

wxComboBox::~wxComboBox()
{
    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 wxComboBox::AppendCommon( const wxString &item )
{
    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

    GtkWidget *list = GTK_COMBO(m_widget)->list;

    GtkWidget *list_item = gtk_list_item_new_with_label( item.mbc_str() );

    gtk_container_add( GTK_CONTAINER(list), list_item );

    gtk_signal_connect( GTK_OBJECT(list_item), "select",
      GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );

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

        if (m_widgetStyle) ApplyWidgetStyle();
    }

    gtk_widget_show( list_item );
}

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

    AppendCommon( item );
}

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

    AppendCommon( item );
}

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

    AppendCommon( item );
}

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

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

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

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

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

    return node->Data();
}

void wxComboBox::SetClientObject( int n, wxClientData* clientData )
{
    wxCHECK_RET( m_widget != NULL, wxT("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* wxComboBox::GetClientObject( int n )
{
    wxCHECK_MSG( m_widget != NULL, (wxClientData*)NULL, wxT("invalid combobox") );

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

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

void wxComboBox::Clear()
{
    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

    GtkWidget *list = GTK_COMBO(m_widget)->list;
    gtk_list_clear_items( GTK_LIST(list), 0, Number() );

    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 wxComboBox::Delete( int n )
{
    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

    GtkList *listbox = GTK_LIST( GTK_COMBO(m_widget)->list );

    GList *child = g_list_nth( listbox->children, n );

    if (!child)
    {
        wxFAIL_MSG(wxT("wrong index"));
        return;
    }

    GList *list = g_list_append( (GList*) NULL, child->data );
    gtk_list_remove_items( listbox, list );
    g_list_free( list );

    wxNode *node = m_clientObjectList.Nth( n );
    if (node)
    {
        wxClientData *cd = (wxClientData*)node->Data();
        if (cd) delete cd;
        m_clientObjectList.DeleteNode( node );
    }

    node = m_clientDataList.Nth( n );
    if (node)
    {
        m_clientDataList.DeleteNode( node );
    }
}

int wxComboBox::FindString( const wxString &item )
{
    wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );

    GtkWidget *list = GTK_COMBO(m_widget)->list;

    GList *child = GTK_LIST(list)->children;
    int count = 0;
    while (child)
    {
        GtkBin *bin = GTK_BIN( child->data );
        GtkLabel *label = GTK_LABEL( bin->child );
        if (item == wxString(label->label,*wxConvCurrent))
            return count;
        count++;
        child = child->next;
    }

    return wxNOT_FOUND;
}

int wxComboBox::GetSelection() const
{
    wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );

    GtkWidget *list = GTK_COMBO(m_widget)->list;

    GList *selection = GTK_LIST(list)->selection;
    if (selection)
    {
        GList *child = GTK_LIST(list)->children;
        int count = 0;
        while (child)
        {
            if (child->data == selection->data) return count;
            count++;
            child = child->next;
        }
    }

    return -1;
}

wxString wxComboBox::GetString( int n ) const
{
    wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") );

    GtkWidget *list = GTK_COMBO(m_widget)->list;

    wxString str;
    GList *child = g_list_nth( GTK_LIST(list)->children, n );
    if (child)
    {
        GtkBin *bin = GTK_BIN( child->data );
        GtkLabel *label = GTK_LABEL( bin->child );
        str = wxString(label->label,*wxConvCurrent);
    }
    else
    {
        wxFAIL_MSG( wxT("wxComboBox: wrong index") );
    }

    return str;
}

wxString wxComboBox::GetStringSelection() const
{
    wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") );

    GtkWidget *list = GTK_COMBO(m_widget)->list;

    GList *selection = GTK_LIST(list)->selection;
    if (selection)
    {
        GtkBin *bin = GTK_BIN( selection->data );
        wxString tmp = wxString(GTK_LABEL( bin->child )->label,*wxConvCurrent);
        return tmp;
    }

    wxFAIL_MSG( wxT("wxComboBox: no selection") );

    return wxT("");
}

int wxComboBox::Number() const
{
    wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid combobox") );

    GtkWidget *list = GTK_COMBO(m_widget)->list;

    GList *child = GTK_LIST(list)->children;
    int count = 0;
    while (child) { count++; child = child->next; }
    return count;
}

void wxComboBox::SetSelection( int n )
{
    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

    DisableEvents();

    GtkWidget *list = GTK_COMBO(m_widget)->list;
    gtk_list_select_item( GTK_LIST(list), n );

    EnableEvents();
}

void wxComboBox::SetStringSelection( const wxString &string )
{
    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

    int res = FindString( string );
    if (res == -1) return;
    SetSelection( res );
}

wxString wxComboBox::GetValue() const
{
    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
    wxString tmp = wxString(gtk_entry_get_text( GTK_ENTRY(entry) ),*wxConvCurrent);
    return tmp;
}

void wxComboBox::SetValue( const wxString& value )
{
    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
    wxString tmp = wxT("");
    if (!value.IsNull()) tmp = value;
    gtk_entry_set_text( GTK_ENTRY(entry), tmp.mbc_str() );
}

void wxComboBox::Copy()
{
    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
#if defined(__WXGTK13__) || (GTK_MINOR_VERSION > 0)
    gtk_editable_copy_clipboard( GTK_EDITABLE(entry) );
#else
    gtk_editable_copy_clipboard( GTK_EDITABLE(entry), 0 );
#endif
}

void wxComboBox::Cut()
{
    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
#if defined(__WXGTK13__) || (GTK_MINOR_VERSION > 0)
    gtk_editable_cut_clipboard( GTK_EDITABLE(entry) );
#else
    gtk_editable_cut_clipboard( GTK_EDITABLE(entry), 0 );
#endif
}

void wxComboBox::Paste()
{
    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
#if defined(__WXGTK13__) || (GTK_MINOR_VERSION > 0)
    gtk_editable_paste_clipboard( GTK_EDITABLE(entry) );
#else
    gtk_editable_paste_clipboard( GTK_EDITABLE(entry), 0 );
#endif
}

void wxComboBox::SetInsertionPoint( long pos )
{
    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
    gtk_entry_set_position( GTK_ENTRY(entry), (int)pos );
}

void wxComboBox::SetInsertionPointEnd()
{
    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

    SetInsertionPoint( -1 );
}

long wxComboBox::GetInsertionPoint() const
{
    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
    return (long) GTK_EDITABLE(entry)->current_pos;
}

long wxComboBox::GetLastPosition() const
{
    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
    int pos = GTK_ENTRY(entry)->text_length;
    return (long) pos-1;
}

void wxComboBox::Replace( long from, long to, const wxString& value )
{
    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
    // FIXME: not quite sure how to do this method right in multibyte mode

    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
    gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
    if (value.IsNull()) return;
    gint pos = (gint)to;
    gtk_editable_insert_text( GTK_EDITABLE(entry), value.mbc_str(), value.Length(), &pos );
}

void wxComboBox::Remove(long from, long to)
{
    wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );

    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
    gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
}

void wxComboBox::SetSelection( long from, long to )
{
    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
    gtk_editable_select_region( GTK_EDITABLE(entry), (gint)from, (gint)to );
}

void wxComboBox::SetEditable( bool editable )
{
    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
    gtk_entry_set_editable( GTK_ENTRY(entry), editable );
}

void wxComboBox::OnChar( wxKeyEvent &event )
{
    if ( event.KeyCode() == WXK_RETURN )
    {
        wxString value = GetValue();

        if ( Number() == 0 )
        {
            // make Enter generate "selected" event if there is only one item
            // in the combobox - without it, it's impossible to select it at
            // all!
            wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );
            event.SetInt( 0 );
            event.SetString( value );
            event.SetEventObject( this );
            GetEventHandler()->ProcessEvent( event );
        }
        else
        {
            // add the item to the list if it's not there yet
            if ( FindString(value) == wxNOT_FOUND )
            {
                Append(value);
                SetStringSelection(value);

                // and generate the selected event for it
                wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );
                event.SetInt( Number() - 1 );
                event.SetString( value );
                event.SetEventObject( this );
                GetEventHandler()->ProcessEvent( event );
            }
            //else: do nothing, this will open the listbox
        }
    }

    event.Skip();
}

void wxComboBox::DisableEvents()
{
    GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
    GList *child = list->children;
    while (child)
    {
        gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
          GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );

        child = child->next;
    }
}

void wxComboBox::EnableEvents()
{
    GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
    GList *child = list->children;
    while (child)
    {
        gtk_signal_connect( GTK_OBJECT(child->data), "select",
          GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );

        child = child->next;
    }
}

void wxComboBox::OnSize( wxSizeEvent &event )
{
    event.Skip();

#if 0
    int w = 21;
    gtk_widget_set_usize( GTK_COMBO(m_widget)->entry, m_width-w-1, m_height );

    gtk_widget_set_uposition( GTK_COMBO(m_widget)->button, m_x+m_width-w, m_y );
    gtk_widget_set_usize( GTK_COMBO(m_widget)->button, w, m_height );
#endif // 0
}

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

//    gtk_widget_set_style( GTK_COMBO(m_widget)->button, m_widgetStyle );
    gtk_widget_set_style( GTK_COMBO(m_widget)->entry, m_widgetStyle );
    gtk_widget_set_style( GTK_COMBO(m_widget)->list, m_widgetStyle );

    GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
    GList *child = list->children;
    while (child)
    {
        gtk_widget_set_style( GTK_WIDGET(child->data), m_widgetStyle );

        GtkBin *bin = GTK_BIN(child->data);
        gtk_widget_set_style( bin->child, m_widgetStyle );

        child = child->next;
    }
}

GtkWidget* wxComboBox::GetConnectWidget()
{
    return GTK_COMBO(m_widget)->entry;
}

bool wxComboBox::IsOwnGtkWindow( GdkWindow *window )
{
    return ( (window == GTK_ENTRY( GTK_COMBO(m_widget)->entry )->text_area) ||
             (window == GTK_COMBO(m_widget)->button->window ) );
}

wxSize wxComboBox::DoGetBestSize() const
{
    wxSize ret( wxControl::DoGetBestSize() );

    // we know better our horizontal extent: it depends on the longest string
    // in the combobox
    ret.x = 0;
    if ( m_widget )
    {
        GdkFont *font = m_font.GetInternalFont();

        wxCoord width;
        size_t count = Number();
        for ( size_t n = 0; n < count; n++ )
        {
            width = (wxCoord)gdk_string_width(font, GetString(n).mbc_str());
            if ( width > ret.x )
                ret.x = width;
        }
    }

    // empty combobox should have some reasonable default size too
    if ( ret.x < 100 )
        ret.x = 100;
    return ret;
}

#endif
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: combobox.cpp
	3	// Purpose:
	4	// Author: Robert Roebling
	5	// Id: $Id$
	6	// Copyright: (c) 1998 Robert Roebling
	7	// Licence: wxWindows licence
	8	/////////////////////////////////////////////////////////////////////////////
	9
	10	#ifdef __GNUG__
	11	#pragma implementation "combobox.h"
	12	#endif
	13
	14	#include "wx/combobox.h"
	15
	16	#if wxUSE_COMBOBOX
	17
	18	#include "wx/settings.h"
	19	#include "wx/intl.h"
	20
	21	#include "wx/textctrl.h" // for wxEVT_COMMAND_TEXT_UPDATED
	22
	23	#include <gdk/gdk.h>
	24	#include <gtk/gtk.h>
	25
	26	//-----------------------------------------------------------------------------
	27	// idle system
	28	//-----------------------------------------------------------------------------
	29
	30	extern void wxapp_install_idle_handler();
	31	extern bool g_isIdle;
	32
	33	//-----------------------------------------------------------------------------
	34	// data
	35	//-----------------------------------------------------------------------------
	36
	37	extern bool g_blockEventsOnDrag;
	38
	39	//-----------------------------------------------------------------------------
	40	// "select"
	41	//-----------------------------------------------------------------------------
	42
	43	static void
	44	gtk_combo_clicked_callback( GtkWidget WXUNUSED(widget), wxComboBox combo )
	45	{
	46	if (g_isIdle) wxapp_install_idle_handler();
	47
	48	if (!combo->m_hasVMT) return;
	49
	50	if (g_blockEventsOnDrag) return;
	51
	52	if (combo->m_alreadySent)
	53	{
	54	combo->m_alreadySent = FALSE;
	55	return;
	56	}
	57
	58	combo->m_alreadySent = TRUE;
	59
	60	wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() );
	61	event.SetInt( combo->GetSelection() );
	62	event.SetString( combo->GetStringSelection() );
	63	event.SetEventObject( combo );
	64
	65	combo->GetEventHandler()->ProcessEvent( event );
	66	}
	67
	68	//-----------------------------------------------------------------------------
	69	// "changed"
	70	//-----------------------------------------------------------------------------
	71
	72	static void
	73	gtk_text_changed_callback( GtkWidget WXUNUSED(widget), wxComboBox combo )
	74	{
	75	if (g_isIdle) wxapp_install_idle_handler();
	76
	77	if (!combo->m_hasVMT) return;
	78
	79	wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() );
	80	event.SetString( combo->GetValue() );
	81	event.SetEventObject( combo );
	82	combo->GetEventHandler()->ProcessEvent( event );
	83	}
	84
	85	//-----------------------------------------------------------------------------
	86	// wxComboBox
	87	//-----------------------------------------------------------------------------
	88
	89	IMPLEMENT_DYNAMIC_CLASS(wxComboBox,wxControl)
	90
	91	BEGIN_EVENT_TABLE(wxComboBox, wxControl)
	92	EVT_SIZE(wxComboBox::OnSize)
	93	EVT_CHAR(wxComboBox::OnChar)
	94	END_EVENT_TABLE()
	95
	96	bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
	97	const wxPoint& pos, const wxSize& size,
	98	int n, const wxString choices[],
	99	long style, const wxValidator& validator,
	100	const wxString& name )
	101	{
	102	m_alreadySent = FALSE;
	103	m_needParent = TRUE;
	104	m_acceptsFocus = TRUE;
	105
	106	if (!PreCreation( parent, pos, size ) \|\|
	107	!CreateBase( parent, id, pos, size, style, validator, name ))
	108	{
	109	wxFAIL_MSG( wxT("wxComboBox creation failed") );
	110	return FALSE;
	111	}
	112
	113	m_widget = gtk_combo_new();
	114
	115	// make it more useable
	116	gtk_combo_set_use_arrows_always( GTK_COMBO(m_widget), TRUE );
	117
	118	// and case-sensitive
	119	gtk_combo_set_case_sensitive( GTK_COMBO(m_widget), TRUE );
	120
	121
	122	GtkWidget *list = GTK_COMBO(m_widget)->list;
	123
	124	for (int i = 0; i < n; i++)
	125	{
	126	/* don't send first event, which GTK sends aways when
	127	inserting the first item */
	128	m_alreadySent = TRUE;
	129
	130	GtkWidget *list_item = gtk_list_item_new_with_label( choices[i].mbc_str() );
	131
	132	m_clientDataList.Append( (wxObject*)NULL );
	133	m_clientObjectList.Append( (wxObject*)NULL );
	134
	135	gtk_container_add( GTK_CONTAINER(list), list_item );
	136
	137	gtk_signal_connect( GTK_OBJECT(list_item), "select",
	138	GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
	139
	140	gtk_widget_show( list_item );
	141	}
	142
	143	m_parent->DoAddChild( this );
	144
	145	PostCreation();
	146
	147	ConnectWidget( GTK_COMBO(m_widget)->button );
	148
	149	if (!value.IsNull()) SetValue( value );
	150
	151	if (style & wxCB_READONLY)
	152	gtk_entry_set_editable( GTK_ENTRY( GTK_COMBO(m_widget)->entry ), FALSE );
	153
	154	gtk_signal_connect( GTK_OBJECT(GTK_COMBO(m_widget)->entry), "changed",
	155	GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
	156
	157	wxSize size_best( DoGetBestSize() );
	158	wxSize new_size( size );
	159	if (new_size.x == -1)
	160	new_size.x = size_best.x;
	161	if (new_size.y == -1)
	162	new_size.y = size_best.y;
	163	if (new_size.y > size_best.y)
	164	new_size.y = size_best.y;
	165	if ((new_size.x != size.x) \|\| (new_size.y != size.y))
	166	SetSize( new_size.x, new_size.y );
	167
	168	SetBackgroundColour( wxSystemSettings::GetSystemColour( wxSYS_COLOUR_WINDOW ) );
	169	SetForegroundColour( parent->GetForegroundColour() );
	170
	171	Show( TRUE );
	172
	173	return TRUE;
	174	}
	175
	176	wxComboBox::~wxComboBox()
	177	{
	178	wxNode *node = m_clientObjectList.First();
	179	while (node)
	180	{
	181	wxClientData cd = (wxClientData)node->Data();
	182	if (cd) delete cd;
	183	node = node->Next();
	184	}
	185	m_clientObjectList.Clear();
	186
	187	m_clientDataList.Clear();
	188	}
	189
	190	void wxComboBox::AppendCommon( const wxString &item )
	191	{
	192	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	193
	194	GtkWidget *list = GTK_COMBO(m_widget)->list;
	195
	196	GtkWidget *list_item = gtk_list_item_new_with_label( item.mbc_str() );
	197
	198	gtk_container_add( GTK_CONTAINER(list), list_item );
	199
	200	gtk_signal_connect( GTK_OBJECT(list_item), "select",
	201	GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
	202
	203	if (GTK_WIDGET_REALIZED(m_widget))
	204	{
	205	gtk_widget_realize( list_item );
	206	gtk_widget_realize( GTK_BIN(list_item)->child );
	207
	208	if (m_widgetStyle) ApplyWidgetStyle();
	209	}
	210
	211	gtk_widget_show( list_item );
	212	}
	213
	214	void wxComboBox::Append( const wxString &item )
	215	{
	216	m_clientDataList.Append( (wxObject*) NULL );
	217	m_clientObjectList.Append( (wxObject*) NULL );
	218
	219	AppendCommon( item );
	220	}
	221
	222	void wxComboBox::Append( const wxString &item, void *clientData )
	223	{
	224	m_clientDataList.Append( (wxObject*) clientData );
	225	m_clientObjectList.Append( (wxObject*)NULL );
	226
	227	AppendCommon( item );
	228	}
	229
	230	void wxComboBox::Append( const wxString &item, wxClientData *clientData )
	231	{
	232	m_clientDataList.Append( (wxObject*) NULL );
	233	m_clientObjectList.Append( (wxObject*) clientData );
	234
	235	AppendCommon( item );
	236	}
	237
	238	void wxComboBox::SetClientData( int n, void* clientData )
	239	{
	240	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	241
	242	wxNode *node = m_clientDataList.Nth( n );
	243	if (!node) return;
	244
	245	node->SetData( (wxObject*) clientData );
	246	}
	247
	248	void* wxComboBox::GetClientData( int n )
	249	{
	250	wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid combobox") );
	251
	252	wxNode *node = m_clientDataList.Nth( n );
	253	if (!node) return NULL;
	254
	255	return node->Data();
	256	}
	257
	258	void wxComboBox::SetClientObject( int n, wxClientData* clientData )
	259	{
	260	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	261
	262	wxNode *node = m_clientObjectList.Nth( n );
	263	if (!node) return;
	264
	265	wxClientData cd = (wxClientData) node->Data();
	266	if (cd) delete cd;
	267
	268	node->SetData( (wxObject*) clientData );
	269	}
	270
	271	wxClientData* wxComboBox::GetClientObject( int n )
	272	{
	273	wxCHECK_MSG( m_widget != NULL, (wxClientData*)NULL, wxT("invalid combobox") );
	274
	275	wxNode *node = m_clientDataList.Nth( n );
	276	if (!node) return (wxClientData*) NULL;
	277
	278	return (wxClientData*) node->Data();
	279	}
	280
	281	void wxComboBox::Clear()
	282	{
	283	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	284
	285	GtkWidget *list = GTK_COMBO(m_widget)->list;
	286	gtk_list_clear_items( GTK_LIST(list), 0, Number() );
	287
	288	wxNode *node = m_clientObjectList.First();
	289	while (node)
	290	{
	291	wxClientData cd = (wxClientData)node->Data();
	292	if (cd) delete cd;
	293	node = node->Next();
	294	}
	295	m_clientObjectList.Clear();
	296
	297	m_clientDataList.Clear();
	298	}
	299
	300	void wxComboBox::Delete( int n )
	301	{
	302	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	303
	304	GtkList *listbox = GTK_LIST( GTK_COMBO(m_widget)->list );
	305
	306	GList *child = g_list_nth( listbox->children, n );
	307
	308	if (!child)
	309	{
	310	wxFAIL_MSG(wxT("wrong index"));
	311	return;
	312	}
	313
	314	GList list = g_list_append( (GList) NULL, child->data );
	315	gtk_list_remove_items( listbox, list );
	316	g_list_free( list );
	317
	318	wxNode *node = m_clientObjectList.Nth( n );
	319	if (node)
	320	{
	321	wxClientData cd = (wxClientData)node->Data();
	322	if (cd) delete cd;
	323	m_clientObjectList.DeleteNode( node );
	324	}
	325
	326	node = m_clientDataList.Nth( n );
	327	if (node)
	328	{
	329	m_clientDataList.DeleteNode( node );
	330	}
	331	}
	332
	333	int wxComboBox::FindString( const wxString &item )
	334	{
	335	wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );
	336
	337	GtkWidget *list = GTK_COMBO(m_widget)->list;
	338
	339	GList *child = GTK_LIST(list)->children;
	340	int count = 0;
	341	while (child)
	342	{
	343	GtkBin *bin = GTK_BIN( child->data );
	344	GtkLabel *label = GTK_LABEL( bin->child );
	345	if (item == wxString(label->label,*wxConvCurrent))
	346	return count;
	347	count++;
	348	child = child->next;
	349	}
	350
	351	return wxNOT_FOUND;
	352	}
	353
	354	int wxComboBox::GetSelection() const
	355	{
	356	wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );
	357
	358	GtkWidget *list = GTK_COMBO(m_widget)->list;
	359
	360	GList *selection = GTK_LIST(list)->selection;
	361	if (selection)
	362	{
	363	GList *child = GTK_LIST(list)->children;
	364	int count = 0;
	365	while (child)
	366	{
	367	if (child->data == selection->data) return count;
	368	count++;
	369	child = child->next;
	370	}
	371	}
	372
	373	return -1;
	374	}
	375
	376	wxString wxComboBox::GetString( int n ) const
	377	{
	378	wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") );
	379
	380	GtkWidget *list = GTK_COMBO(m_widget)->list;
	381
	382	wxString str;
	383	GList *child = g_list_nth( GTK_LIST(list)->children, n );
	384	if (child)
	385	{
	386	GtkBin *bin = GTK_BIN( child->data );
	387	GtkLabel *label = GTK_LABEL( bin->child );
	388	str = wxString(label->label,*wxConvCurrent);
	389	}
	390	else
	391	{
	392	wxFAIL_MSG( wxT("wxComboBox: wrong index") );
	393	}
	394
	395	return str;
	396	}
	397
	398	wxString wxComboBox::GetStringSelection() const
	399	{
	400	wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") );
	401
	402	GtkWidget *list = GTK_COMBO(m_widget)->list;
	403
	404	GList *selection = GTK_LIST(list)->selection;
	405	if (selection)
	406	{
	407	GtkBin *bin = GTK_BIN( selection->data );
	408	wxString tmp = wxString(GTK_LABEL( bin->child )->label,*wxConvCurrent);
	409	return tmp;
	410	}
	411
	412	wxFAIL_MSG( wxT("wxComboBox: no selection") );
	413
	414	return wxT("");
	415	}
	416
	417	int wxComboBox::Number() const
	418	{
	419	wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid combobox") );
	420
	421	GtkWidget *list = GTK_COMBO(m_widget)->list;
	422
	423	GList *child = GTK_LIST(list)->children;
	424	int count = 0;
	425	while (child) { count++; child = child->next; }
	426	return count;
	427	}
	428
	429	void wxComboBox::SetSelection( int n )
	430	{
	431	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	432
	433	DisableEvents();
	434
	435	GtkWidget *list = GTK_COMBO(m_widget)->list;
	436	gtk_list_select_item( GTK_LIST(list), n );
	437
	438	EnableEvents();
	439	}
	440
	441	void wxComboBox::SetStringSelection( const wxString &string )
	442	{
	443	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	444
	445	int res = FindString( string );
	446	if (res == -1) return;
	447	SetSelection( res );
	448	}
	449
	450	wxString wxComboBox::GetValue() const
	451	{
	452	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	453	wxString tmp = wxString(gtk_entry_get_text( GTK_ENTRY(entry) ),*wxConvCurrent);
	454	return tmp;
	455	}
	456
	457	void wxComboBox::SetValue( const wxString& value )
	458	{
	459	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	460
	461	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	462	wxString tmp = wxT("");
	463	if (!value.IsNull()) tmp = value;
	464	gtk_entry_set_text( GTK_ENTRY(entry), tmp.mbc_str() );
	465	}
	466
	467	void wxComboBox::Copy()
	468	{
	469	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	470
	471	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	472	#if defined(__WXGTK13__) \|\| (GTK_MINOR_VERSION > 0)
	473	gtk_editable_copy_clipboard( GTK_EDITABLE(entry) );
	474	#else
	475	gtk_editable_copy_clipboard( GTK_EDITABLE(entry), 0 );
	476	#endif
	477	}
	478
	479	void wxComboBox::Cut()
	480	{
	481	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	482
	483	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	484	#if defined(__WXGTK13__) \|\| (GTK_MINOR_VERSION > 0)
	485	gtk_editable_cut_clipboard( GTK_EDITABLE(entry) );
	486	#else
	487	gtk_editable_cut_clipboard( GTK_EDITABLE(entry), 0 );
	488	#endif
	489	}
	490
	491	void wxComboBox::Paste()
	492	{
	493	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	494
	495	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	496	#if defined(__WXGTK13__) \|\| (GTK_MINOR_VERSION > 0)
	497	gtk_editable_paste_clipboard( GTK_EDITABLE(entry) );
	498	#else
	499	gtk_editable_paste_clipboard( GTK_EDITABLE(entry), 0 );
	500	#endif
	501	}
	502
	503	void wxComboBox::SetInsertionPoint( long pos )
	504	{
	505	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	506
	507	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	508	gtk_entry_set_position( GTK_ENTRY(entry), (int)pos );
	509	}
	510
	511	void wxComboBox::SetInsertionPointEnd()
	512	{
	513	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	514
	515	SetInsertionPoint( -1 );
	516	}
	517
	518	long wxComboBox::GetInsertionPoint() const
	519	{
	520	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	521	return (long) GTK_EDITABLE(entry)->current_pos;
	522	}
	523
	524	long wxComboBox::GetLastPosition() const
	525	{
	526	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	527	int pos = GTK_ENTRY(entry)->text_length;
	528	return (long) pos-1;
	529	}
	530
	531	void wxComboBox::Replace( long from, long to, const wxString& value )
	532	{
	533	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	534	// FIXME: not quite sure how to do this method right in multibyte mode
	535
	536	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	537	gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
	538	if (value.IsNull()) return;
	539	gint pos = (gint)to;
	540	gtk_editable_insert_text( GTK_EDITABLE(entry), value.mbc_str(), value.Length(), &pos );
	541	}
	542
	543	void wxComboBox::Remove(long from, long to)
	544	{
	545	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	546
	547	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	548	gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
	549	}
	550
	551	void wxComboBox::SetSelection( long from, long to )
	552	{
	553	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	554	gtk_editable_select_region( GTK_EDITABLE(entry), (gint)from, (gint)to );
	555	}
	556
	557	void wxComboBox::SetEditable( bool editable )
	558	{
	559	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	560	gtk_entry_set_editable( GTK_ENTRY(entry), editable );
	561	}
	562
	563	void wxComboBox::OnChar( wxKeyEvent &event )
	564	{
	565	if ( event.KeyCode() == WXK_RETURN )
	566	{
	567	wxString value = GetValue();
	568
	569	if ( Number() == 0 )
	570	{
	571	// make Enter generate "selected" event if there is only one item
	572	// in the combobox - without it, it's impossible to select it at
	573	// all!
	574	wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );
	575	event.SetInt( 0 );
	576	event.SetString( value );
	577	event.SetEventObject( this );
	578	GetEventHandler()->ProcessEvent( event );
	579	}
	580	else
	581	{
	582	// add the item to the list if it's not there yet
	583	if ( FindString(value) == wxNOT_FOUND )
	584	{
	585	Append(value);
	586	SetStringSelection(value);
	587
	588	// and generate the selected event for it
	589	wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );
	590	event.SetInt( Number() - 1 );
	591	event.SetString( value );
	592	event.SetEventObject( this );
	593	GetEventHandler()->ProcessEvent( event );
	594	}
	595	//else: do nothing, this will open the listbox
	596	}
	597	}
	598
	599	event.Skip();
	600	}
	601
	602	void wxComboBox::DisableEvents()
	603	{
	604	GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
	605	GList *child = list->children;
	606	while (child)
	607	{
	608	gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
	609	GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
	610
	611	child = child->next;
	612	}
	613	}
	614
	615	void wxComboBox::EnableEvents()
	616	{
	617	GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
	618	GList *child = list->children;
	619	while (child)
	620	{
	621	gtk_signal_connect( GTK_OBJECT(child->data), "select",
	622	GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
	623
	624	child = child->next;
	625	}
	626	}
	627
	628	void wxComboBox::OnSize( wxSizeEvent &event )
	629	{
	630	event.Skip();
	631
	632	#if 0
	633	int w = 21;
	634	gtk_widget_set_usize( GTK_COMBO(m_widget)->entry, m_width-w-1, m_height );
	635
	636	gtk_widget_set_uposition( GTK_COMBO(m_widget)->button, m_x+m_width-w, m_y );
	637	gtk_widget_set_usize( GTK_COMBO(m_widget)->button, w, m_height );
	638	#endif // 0
	639	}
	640
	641	void wxComboBox::ApplyWidgetStyle()
	642	{
	643	SetWidgetStyle();
	644
	645	// gtk_widget_set_style( GTK_COMBO(m_widget)->button, m_widgetStyle );
	646	gtk_widget_set_style( GTK_COMBO(m_widget)->entry, m_widgetStyle );
	647	gtk_widget_set_style( GTK_COMBO(m_widget)->list, m_widgetStyle );
	648
	649	GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
	650	GList *child = list->children;
	651	while (child)
	652	{
	653	gtk_widget_set_style( GTK_WIDGET(child->data), m_widgetStyle );
	654
	655	GtkBin *bin = GTK_BIN(child->data);
	656	gtk_widget_set_style( bin->child, m_widgetStyle );
	657
	658	child = child->next;
	659	}
	660	}
	661
	662	GtkWidget* wxComboBox::GetConnectWidget()
	663	{
	664	return GTK_COMBO(m_widget)->entry;
	665	}
	666
	667	bool wxComboBox::IsOwnGtkWindow( GdkWindow *window )
	668	{
	669	return ( (window == GTK_ENTRY( GTK_COMBO(m_widget)->entry )->text_area) \|\|
	670	(window == GTK_COMBO(m_widget)->button->window ) );
	671	}
	672
	673	wxSize wxComboBox::DoGetBestSize() const
	674	{
	675	wxSize ret( wxControl::DoGetBestSize() );
	676
	677	// we know better our horizontal extent: it depends on the longest string
	678	// in the combobox
	679	ret.x = 0;
	680	if ( m_widget )
	681	{
	682	GdkFont *font = m_font.GetInternalFont();
	683
	684	wxCoord width;
	685	size_t count = Number();
	686	for ( size_t n = 0; n < count; n++ )
	687	{
	688	width = (wxCoord)gdk_string_width(font, GetString(n).mbc_str());
	689	if ( width > ret.x )
	690	ret.x = width;
	691	}
	692	}
	693
	694	// empty combobox should have some reasonable default size too
	695	if ( ret.x < 100 )
	696	ret.x = 100;
	697	return ret;
	698	}
	699
	700	#endif