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 "wx/gtk/private.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;

    int curSelection = combo->GetSelection();

    if (combo->m_prevSelection != curSelection)
    {
        GtkWidget *list = GTK_COMBO(combo->m_widget)->list;
        gtk_list_unselect_item( GTK_LIST(list), combo->m_prevSelection );
    }

    combo->m_prevSelection = curSelection;

    wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() );
    event.SetInt( curSelection );
    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;
    m_prevSelection = 0;

    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;

    gtk_list_set_selection_mode( GTK_LIST(list), GTK_SELECTION_MULTIPLE );

    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 );

    m_focusWidget = GTK_COMBO(m_widget)->entry;

    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 );

        // This is required for tool bar support
        gtk_widget_set_usize( m_widget, new_size.x, new_size.y );
    }


    SetBackgroundColour( wxSystemSettings::GetColour( 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_clientObjectList.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_unselect_item( GTK_LIST(list), m_prevSelection );
    gtk_list_select_item( GTK_LIST(list), n );
    m_prevSelection = 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;
    gtk_editable_copy_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG );
}

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

    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
    gtk_editable_cut_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG );
}

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

    GtkWidget *entry = GTK_COMBO(m_widget)->entry;
    gtk_editable_paste_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG);
}

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
{
    return (long) GET_EDITABLE_POS( GTK_COMBO(m_widget)->entry );
}

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
            {
                // This will invoke the dialog default action, such
                // as the clicking the default button.

                wxWindow *top_frame = m_parent;
                while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
                top_frame = top_frame->GetParent();

                if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
                {
                    GtkWindow *window = GTK_WINDOW(top_frame->m_widget);

                    if (window->default_widget)
                    {
                        gtk_widget_activate (window->default_widget);
                        return;
                    }
                }
            }
        }
    }

    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 "wx/gtk/private.h"
	24
	25	//-----------------------------------------------------------------------------
	26	// idle system
	27	//-----------------------------------------------------------------------------
	28
	29	extern void wxapp_install_idle_handler();
	30	extern bool g_isIdle;
	31
	32	//-----------------------------------------------------------------------------
	33	// data
	34	//-----------------------------------------------------------------------------
	35
	36	extern bool g_blockEventsOnDrag;
	37
	38	//-----------------------------------------------------------------------------
	39	// "select"
	40	//-----------------------------------------------------------------------------
	41
	42	static void
	43	gtk_combo_clicked_callback( GtkWidget WXUNUSED(widget), wxComboBox combo )
	44	{
	45	if (g_isIdle) wxapp_install_idle_handler();
	46
	47	if (!combo->m_hasVMT) return;
	48
	49	if (g_blockEventsOnDrag) return;
	50
	51	if (combo->m_alreadySent)
	52	{
	53	combo->m_alreadySent = FALSE;
	54	return;
	55	}
	56
	57	combo->m_alreadySent = TRUE;
	58
	59	int curSelection = combo->GetSelection();
	60
	61	if (combo->m_prevSelection != curSelection)
	62	{
	63	GtkWidget *list = GTK_COMBO(combo->m_widget)->list;
	64	gtk_list_unselect_item( GTK_LIST(list), combo->m_prevSelection );
	65	}
	66
	67	combo->m_prevSelection = curSelection;
	68
	69	wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() );
	70	event.SetInt( curSelection );
	71	event.SetString( combo->GetStringSelection() );
	72	event.SetEventObject( combo );
	73
	74	combo->GetEventHandler()->ProcessEvent( event );
	75	}
	76
	77	//-----------------------------------------------------------------------------
	78	// "changed"
	79	//-----------------------------------------------------------------------------
	80
	81	static void
	82	gtk_text_changed_callback( GtkWidget WXUNUSED(widget), wxComboBox combo )
	83	{
	84	if (g_isIdle) wxapp_install_idle_handler();
	85
	86	if (!combo->m_hasVMT) return;
	87
	88	wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() );
	89	event.SetString( combo->GetValue() );
	90	event.SetEventObject( combo );
	91	combo->GetEventHandler()->ProcessEvent( event );
	92	}
	93
	94	//-----------------------------------------------------------------------------
	95	// wxComboBox
	96	//-----------------------------------------------------------------------------
	97
	98	IMPLEMENT_DYNAMIC_CLASS(wxComboBox,wxControl)
	99
	100	BEGIN_EVENT_TABLE(wxComboBox, wxControl)
	101	EVT_SIZE(wxComboBox::OnSize)
	102	EVT_CHAR(wxComboBox::OnChar)
	103	END_EVENT_TABLE()
	104
	105	bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
	106	const wxPoint& pos, const wxSize& size,
	107	int n, const wxString choices[],
	108	long style, const wxValidator& validator,
	109	const wxString& name )
	110	{
	111	m_alreadySent = FALSE;
	112	m_needParent = TRUE;
	113	m_acceptsFocus = TRUE;
	114	m_prevSelection = 0;
	115
	116	if (!PreCreation( parent, pos, size ) \|\|
	117	!CreateBase( parent, id, pos, size, style, validator, name ))
	118	{
	119	wxFAIL_MSG( wxT("wxComboBox creation failed") );
	120	return FALSE;
	121	}
	122
	123	m_widget = gtk_combo_new();
	124
	125	// make it more useable
	126	gtk_combo_set_use_arrows_always( GTK_COMBO(m_widget), TRUE );
	127
	128	// and case-sensitive
	129	gtk_combo_set_case_sensitive( GTK_COMBO(m_widget), TRUE );
	130
	131
	132	GtkWidget *list = GTK_COMBO(m_widget)->list;
	133
	134	gtk_list_set_selection_mode( GTK_LIST(list), GTK_SELECTION_MULTIPLE );
	135
	136	for (int i = 0; i < n; i++)
	137	{
	138	/* don't send first event, which GTK sends aways when
	139	inserting the first item */
	140	m_alreadySent = TRUE;
	141
	142	GtkWidget *list_item = gtk_list_item_new_with_label( choices[i].mbc_str() );
	143
	144	m_clientDataList.Append( (wxObject*)NULL );
	145	m_clientObjectList.Append( (wxObject*)NULL );
	146
	147	gtk_container_add( GTK_CONTAINER(list), list_item );
	148
	149	gtk_signal_connect( GTK_OBJECT(list_item), "select",
	150	GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
	151
	152	gtk_widget_show( list_item );
	153	}
	154
	155	m_parent->DoAddChild( this );
	156
	157	m_focusWidget = GTK_COMBO(m_widget)->entry;
	158
	159	PostCreation();
	160
	161	ConnectWidget( GTK_COMBO(m_widget)->button );
	162
	163	if (!value.IsNull()) SetValue( value );
	164
	165	if (style & wxCB_READONLY)
	166	gtk_entry_set_editable( GTK_ENTRY( GTK_COMBO(m_widget)->entry ), FALSE );
	167
	168	gtk_signal_connect( GTK_OBJECT(GTK_COMBO(m_widget)->entry), "changed",
	169	GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
	170
	171	wxSize size_best( DoGetBestSize() );
	172	wxSize new_size( size );
	173	if (new_size.x == -1)
	174	new_size.x = size_best.x;
	175	if (new_size.y == -1)
	176	new_size.y = size_best.y;
	177	if (new_size.y > size_best.y)
	178	new_size.y = size_best.y;
	179	if ((new_size.x != size.x) \|\| (new_size.y != size.y))
	180	{
	181	SetSize( new_size.x, new_size.y );
	182
	183	// This is required for tool bar support
	184	gtk_widget_set_usize( m_widget, new_size.x, new_size.y );
	185	}
	186
	187
	188	SetBackgroundColour( wxSystemSettings::GetColour( wxSYS_COLOUR_WINDOW ) );
	189	SetForegroundColour( parent->GetForegroundColour() );
	190
	191	Show( TRUE );
	192
	193	return TRUE;
	194	}
	195
	196	wxComboBox::~wxComboBox()
	197	{
	198	wxNode *node = m_clientObjectList.First();
	199	while (node)
	200	{
	201	wxClientData cd = (wxClientData)node->Data();
	202	if (cd) delete cd;
	203	node = node->Next();
	204	}
	205	m_clientObjectList.Clear();
	206
	207	m_clientDataList.Clear();
	208	}
	209
	210	void wxComboBox::AppendCommon( const wxString &item )
	211	{
	212	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	213
	214	GtkWidget *list = GTK_COMBO(m_widget)->list;
	215
	216	GtkWidget *list_item = gtk_list_item_new_with_label( item.mbc_str() );
	217
	218	gtk_container_add( GTK_CONTAINER(list), list_item );
	219
	220	gtk_signal_connect( GTK_OBJECT(list_item), "select",
	221	GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
	222
	223	if (GTK_WIDGET_REALIZED(m_widget))
	224	{
	225	gtk_widget_realize( list_item );
	226	gtk_widget_realize( GTK_BIN(list_item)->child );
	227
	228	if (m_widgetStyle) ApplyWidgetStyle();
	229	}
	230
	231	gtk_widget_show( list_item );
	232	}
	233
	234	void wxComboBox::Append( const wxString &item )
	235	{
	236	m_clientDataList.Append( (wxObject*) NULL );
	237	m_clientObjectList.Append( (wxObject*) NULL );
	238
	239	AppendCommon( item );
	240	}
	241
	242	void wxComboBox::Append( const wxString &item, void *clientData )
	243	{
	244	m_clientDataList.Append( (wxObject*) clientData );
	245	m_clientObjectList.Append( (wxObject*)NULL );
	246
	247	AppendCommon( item );
	248	}
	249
	250	void wxComboBox::Append( const wxString &item, wxClientData *clientData )
	251	{
	252	m_clientDataList.Append( (wxObject*) NULL );
	253	m_clientObjectList.Append( (wxObject*) clientData );
	254
	255	AppendCommon( item );
	256	}
	257
	258	void wxComboBox::SetClientData( int n, void* clientData )
	259	{
	260	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	261
	262	wxNode *node = m_clientDataList.Nth( n );
	263	if (!node) return;
	264
	265	node->SetData( (wxObject*) clientData );
	266	}
	267
	268	void* wxComboBox::GetClientData( int n )
	269	{
	270	wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid combobox") );
	271
	272	wxNode *node = m_clientDataList.Nth( n );
	273	if (!node) return NULL;
	274
	275	return node->Data();
	276	}
	277
	278	void wxComboBox::SetClientObject( int n, wxClientData* clientData )
	279	{
	280	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	281
	282	wxNode *node = m_clientObjectList.Nth( n );
	283	if (!node) return;
	284
	285	wxClientData cd = (wxClientData) node->Data();
	286	if (cd) delete cd;
	287
	288	node->SetData( (wxObject*) clientData );
	289	}
	290
	291	wxClientData* wxComboBox::GetClientObject( int n )
	292	{
	293	wxCHECK_MSG( m_widget != NULL, (wxClientData*)NULL, wxT("invalid combobox") );
	294
	295	wxNode *node = m_clientObjectList.Nth( n );
	296	if (!node) return (wxClientData*) NULL;
	297
	298	return (wxClientData*) node->Data();
	299	}
	300
	301	void wxComboBox::Clear()
	302	{
	303	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	304
	305	GtkWidget *list = GTK_COMBO(m_widget)->list;
	306	gtk_list_clear_items( GTK_LIST(list), 0, Number() );
	307
	308	wxNode *node = m_clientObjectList.First();
	309	while (node)
	310	{
	311	wxClientData cd = (wxClientData)node->Data();
	312	if (cd) delete cd;
	313	node = node->Next();
	314	}
	315	m_clientObjectList.Clear();
	316
	317	m_clientDataList.Clear();
	318	}
	319
	320	void wxComboBox::Delete( int n )
	321	{
	322	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	323
	324	GtkList *listbox = GTK_LIST( GTK_COMBO(m_widget)->list );
	325
	326	GList *child = g_list_nth( listbox->children, n );
	327
	328	if (!child)
	329	{
	330	wxFAIL_MSG(wxT("wrong index"));
	331	return;
	332	}
	333
	334	GList list = g_list_append( (GList) NULL, child->data );
	335	gtk_list_remove_items( listbox, list );
	336	g_list_free( list );
	337
	338	wxNode *node = m_clientObjectList.Nth( n );
	339	if (node)
	340	{
	341	wxClientData cd = (wxClientData)node->Data();
	342	if (cd) delete cd;
	343	m_clientObjectList.DeleteNode( node );
	344	}
	345
	346	node = m_clientDataList.Nth( n );
	347	if (node)
	348	{
	349	m_clientDataList.DeleteNode( node );
	350	}
	351	}
	352
	353	int wxComboBox::FindString( const wxString &item )
	354	{
	355	wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );
	356
	357	GtkWidget *list = GTK_COMBO(m_widget)->list;
	358
	359	GList *child = GTK_LIST(list)->children;
	360	int count = 0;
	361	while (child)
	362	{
	363	GtkBin *bin = GTK_BIN( child->data );
	364	GtkLabel *label = GTK_LABEL( bin->child );
	365	if (item == wxString(label->label,*wxConvCurrent))
	366	return count;
	367	count++;
	368	child = child->next;
	369	}
	370
	371	return wxNOT_FOUND;
	372	}
	373
	374	int wxComboBox::GetSelection() const
	375	{
	376	wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );
	377
	378	GtkWidget *list = GTK_COMBO(m_widget)->list;
	379
	380	GList *selection = GTK_LIST(list)->selection;
	381	if (selection)
	382	{
	383	GList *child = GTK_LIST(list)->children;
	384	int count = 0;
	385	while (child)
	386	{
	387	if (child->data == selection->data) return count;
	388	count++;
	389	child = child->next;
	390	}
	391	}
	392
	393	return -1;
	394	}
	395
	396	wxString wxComboBox::GetString( int n ) const
	397	{
	398	wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") );
	399
	400	GtkWidget *list = GTK_COMBO(m_widget)->list;
	401
	402	wxString str;
	403	GList *child = g_list_nth( GTK_LIST(list)->children, n );
	404	if (child)
	405	{
	406	GtkBin *bin = GTK_BIN( child->data );
	407	GtkLabel *label = GTK_LABEL( bin->child );
	408	str = wxString(label->label,*wxConvCurrent);
	409	}
	410	else
	411	{
	412	wxFAIL_MSG( wxT("wxComboBox: wrong index") );
	413	}
	414
	415	return str;
	416	}
	417
	418	wxString wxComboBox::GetStringSelection() const
	419	{
	420	wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") );
	421
	422	GtkWidget *list = GTK_COMBO(m_widget)->list;
	423
	424	GList *selection = GTK_LIST(list)->selection;
	425	if (selection)
	426	{
	427	GtkBin *bin = GTK_BIN( selection->data );
	428	wxString tmp = wxString(GTK_LABEL( bin->child )->label,*wxConvCurrent);
	429	return tmp;
	430	}
	431
	432	wxFAIL_MSG( wxT("wxComboBox: no selection") );
	433
	434	return wxT("");
	435	}
	436
	437	int wxComboBox::Number() const
	438	{
	439	wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid combobox") );
	440
	441	GtkWidget *list = GTK_COMBO(m_widget)->list;
	442
	443	GList *child = GTK_LIST(list)->children;
	444	int count = 0;
	445	while (child) { count++; child = child->next; }
	446	return count;
	447	}
	448
	449	void wxComboBox::SetSelection( int n )
	450	{
	451	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	452
	453	DisableEvents();
	454
	455	GtkWidget *list = GTK_COMBO(m_widget)->list;
	456	gtk_list_unselect_item( GTK_LIST(list), m_prevSelection );
	457	gtk_list_select_item( GTK_LIST(list), n );
	458	m_prevSelection = n;
	459
	460	EnableEvents();
	461	}
	462
	463	void wxComboBox::SetStringSelection( const wxString &string )
	464	{
	465	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	466
	467	int res = FindString( string );
	468	if (res == -1) return;
	469	SetSelection( res );
	470	}
	471
	472	wxString wxComboBox::GetValue() const
	473	{
	474	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	475	wxString tmp = wxString(gtk_entry_get_text( GTK_ENTRY(entry) ),*wxConvCurrent);
	476	return tmp;
	477	}
	478
	479	void wxComboBox::SetValue( const wxString& value )
	480	{
	481	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	482
	483	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	484	wxString tmp = wxT("");
	485	if (!value.IsNull()) tmp = value;
	486	gtk_entry_set_text( GTK_ENTRY(entry), tmp.mbc_str() );
	487	}
	488
	489	void wxComboBox::Copy()
	490	{
	491	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	492
	493	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	494	gtk_editable_copy_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG );
	495	}
	496
	497	void wxComboBox::Cut()
	498	{
	499	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	500
	501	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	502	gtk_editable_cut_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG );
	503	}
	504
	505	void wxComboBox::Paste()
	506	{
	507	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	508
	509	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	510	gtk_editable_paste_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG);
	511	}
	512
	513	void wxComboBox::SetInsertionPoint( long pos )
	514	{
	515	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	516
	517	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	518	gtk_entry_set_position( GTK_ENTRY(entry), (int)pos );
	519	}
	520
	521	void wxComboBox::SetInsertionPointEnd()
	522	{
	523	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	524
	525	SetInsertionPoint( -1 );
	526	}
	527
	528	long wxComboBox::GetInsertionPoint() const
	529	{
	530	return (long) GET_EDITABLE_POS( GTK_COMBO(m_widget)->entry );
	531	}
	532
	533	long wxComboBox::GetLastPosition() const
	534	{
	535	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	536	int pos = GTK_ENTRY(entry)->text_length;
	537	return (long) pos-1;
	538	}
	539
	540	void wxComboBox::Replace( long from, long to, const wxString& value )
	541	{
	542	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	543	// FIXME: not quite sure how to do this method right in multibyte mode
	544
	545	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	546	gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
	547	if (value.IsNull()) return;
	548	gint pos = (gint)to;
	549	gtk_editable_insert_text( GTK_EDITABLE(entry), value.mbc_str(), value.Length(), &pos );
	550	}
	551
	552	void wxComboBox::Remove(long from, long to)
	553	{
	554	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	555
	556	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	557	gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
	558	}
	559
	560	void wxComboBox::SetSelection( long from, long to )
	561	{
	562	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	563	gtk_editable_select_region( GTK_EDITABLE(entry), (gint)from, (gint)to );
	564	}
	565
	566	void wxComboBox::SetEditable( bool editable )
	567	{
	568	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	569	gtk_entry_set_editable( GTK_ENTRY(entry), editable );
	570	}
	571
	572	void wxComboBox::OnChar( wxKeyEvent &event )
	573	{
	574	if ( event.KeyCode() == WXK_RETURN )
	575	{
	576	wxString value = GetValue();
	577
	578	if ( Number() == 0 )
	579	{
	580	// make Enter generate "selected" event if there is only one item
	581	// in the combobox - without it, it's impossible to select it at
	582	// all!
	583	wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );
	584	event.SetInt( 0 );
	585	event.SetString( value );
	586	event.SetEventObject( this );
	587	GetEventHandler()->ProcessEvent( event );
	588	}
	589	else
	590	{
	591	// add the item to the list if it's not there yet
	592	if ( FindString(value) == wxNOT_FOUND )
	593	{
	594	Append(value);
	595	SetStringSelection(value);
	596
	597	// and generate the selected event for it
	598	wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );
	599	event.SetInt( Number() - 1 );
	600	event.SetString( value );
	601	event.SetEventObject( this );
	602	GetEventHandler()->ProcessEvent( event );
	603	}
	604	else
	605	{
	606	// This will invoke the dialog default action, such
	607	// as the clicking the default button.
	608
	609	wxWindow *top_frame = m_parent;
	610	while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
	611	top_frame = top_frame->GetParent();
	612
	613	if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
	614	{
	615	GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
	616
	617	if (window->default_widget)
	618	{
	619	gtk_widget_activate (window->default_widget);
	620	return;
	621	}
	622	}
	623	}
	624	}
	625	}
	626
	627	event.Skip();
	628	}
	629
	630	void wxComboBox::DisableEvents()
	631	{
	632	GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
	633	GList *child = list->children;
	634	while (child)
	635	{
	636	gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
	637	GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
	638
	639	child = child->next;
	640	}
	641	}
	642
	643	void wxComboBox::EnableEvents()
	644	{
	645	GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
	646	GList *child = list->children;
	647	while (child)
	648	{
	649	gtk_signal_connect( GTK_OBJECT(child->data), "select",
	650	GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
	651
	652	child = child->next;
	653	}
	654	}
	655
	656	void wxComboBox::OnSize( wxSizeEvent &event )
	657	{
	658	event.Skip();
	659
	660	#if 0
	661	int w = 21;
	662	gtk_widget_set_usize( GTK_COMBO(m_widget)->entry, m_width-w-1, m_height );
	663
	664	gtk_widget_set_uposition( GTK_COMBO(m_widget)->button, m_x+m_width-w, m_y );
	665	gtk_widget_set_usize( GTK_COMBO(m_widget)->button, w, m_height );
	666	#endif // 0
	667	}
	668
	669	void wxComboBox::ApplyWidgetStyle()
	670	{
	671	SetWidgetStyle();
	672
	673	// gtk_widget_set_style( GTK_COMBO(m_widget)->button, m_widgetStyle );
	674	gtk_widget_set_style( GTK_COMBO(m_widget)->entry, m_widgetStyle );
	675	gtk_widget_set_style( GTK_COMBO(m_widget)->list, m_widgetStyle );
	676
	677	GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
	678	GList *child = list->children;
	679	while (child)
	680	{
	681	gtk_widget_set_style( GTK_WIDGET(child->data), m_widgetStyle );
	682
	683	GtkBin *bin = GTK_BIN(child->data);
	684	gtk_widget_set_style( bin->child, m_widgetStyle );
	685
	686	child = child->next;
	687	}
	688	}
	689
	690	GtkWidget* wxComboBox::GetConnectWidget()
	691	{
	692	return GTK_COMBO(m_widget)->entry;
	693	}
	694
	695	bool wxComboBox::IsOwnGtkWindow( GdkWindow *window )
	696	{
	697	return ( (window == GTK_ENTRY( GTK_COMBO(m_widget)->entry )->text_area) \|\|
	698	(window == GTK_COMBO(m_widget)->button->window ) );
	699	}
	700
	701	wxSize wxComboBox::DoGetBestSize() const
	702	{
	703	wxSize ret( wxControl::DoGetBestSize() );
	704
	705	// we know better our horizontal extent: it depends on the longest string
	706	// in the combobox
	707	ret.x = 0;
	708	if ( m_widget )
	709	{
	710	GdkFont *font = m_font.GetInternalFont();
	711
	712	wxCoord width;
	713	size_t count = Number();
	714	for ( size_t n = 0; n < count; n++ )
	715	{
	716	width = (wxCoord)gdk_string_width(font, GetString(n).mbc_str());
	717	if ( width > ret.x )
	718	ret.x = width;
	719	}
	720	}
	721
	722	// empty combobox should have some reasonable default size too
	723	if ( ret.x < 100 )
	724	ret.x = 100;
	725	return ret;
	726	}
	727
	728	#endif