src/gtk1/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;

#ifndef __WXGTK20__
    gtk_list_set_selection_mode( GTK_LIST(list), GTK_SELECTION_MULTIPLE );
#endif

    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( wxGTK_CONV( choices[i] ) );

        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( wxGTK_CONV( item ) );

    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 );
#ifdef __WXGTK20__
        str = wxGTK_CONV_BACK( gtk_label_get_text( label) );
#else
        str = wxString( label->label );
#endif
    }
    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
{
    GtkEntry *entry = GTK_ENTRY( GTK_COMBO(m_widget)->entry );
    wxString tmp( wxGTK_CONV_BACK( gtk_entry_get_text( entry ) ) );

#if 0
    for (int i = 0; i < wxStrlen(tmp.c_str()) +1; i++)
    {
        wxChar c = tmp[i];
        printf( "%d ", (int) (c) );
    }
    printf( "\n" );
#endif

    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), wxGTK_CONV( tmp ) );
}

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") );

    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;

#if wxUSE_UNICODE
    wxCharBuffer buffer = wxConvUTF8.cWX2MB( value );
    gtk_editable_insert_text( GTK_EDITABLE(entry), (const char*) buffer, strlen( (const char*) buffer ), &pos );
#else
    gtk_editable_insert_text( GTK_EDITABLE(entry), value.c_str(), value.Length(), &pos );
#endif
}

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 );
            }

            // 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;
                }
            }

            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, wxGTK_CONV( GetString(n) ) );
            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	#ifndef __WXGTK20__
	135	gtk_list_set_selection_mode( GTK_LIST(list), GTK_SELECTION_MULTIPLE );
	136	#endif
	137
	138	for (int i = 0; i < n; i++)
	139	{
	140	/* don't send first event, which GTK sends aways when
	141	inserting the first item */
	142	m_alreadySent = TRUE;
	143
	144	GtkWidget *list_item = gtk_list_item_new_with_label( wxGTK_CONV( choices[i] ) );
	145
	146	m_clientDataList.Append( (wxObject*)NULL );
	147	m_clientObjectList.Append( (wxObject*)NULL );
	148
	149	gtk_container_add( GTK_CONTAINER(list), list_item );
	150
	151	gtk_signal_connect( GTK_OBJECT(list_item), "select",
	152	GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
	153
	154	gtk_widget_show( list_item );
	155	}
	156
	157	m_parent->DoAddChild( this );
	158
	159	m_focusWidget = GTK_COMBO(m_widget)->entry;
	160
	161	PostCreation();
	162
	163	ConnectWidget( GTK_COMBO(m_widget)->button );
	164
	165	if (!value.IsNull()) SetValue( value );
	166
	167	if (style & wxCB_READONLY)
	168	gtk_entry_set_editable( GTK_ENTRY( GTK_COMBO(m_widget)->entry ), FALSE );
	169
	170	gtk_signal_connect( GTK_OBJECT(GTK_COMBO(m_widget)->entry), "changed",
	171	GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
	172
	173	wxSize size_best( DoGetBestSize() );
	174	wxSize new_size( size );
	175	if (new_size.x == -1)
	176	new_size.x = size_best.x;
	177	if (new_size.y == -1)
	178	new_size.y = size_best.y;
	179	if (new_size.y > size_best.y)
	180	new_size.y = size_best.y;
	181	if ((new_size.x != size.x) \|\| (new_size.y != size.y))
	182	{
	183	SetSize( new_size.x, new_size.y );
	184
	185	// This is required for tool bar support
	186	gtk_widget_set_usize( m_widget, new_size.x, new_size.y );
	187	}
	188
	189
	190	SetBackgroundColour( wxSystemSettings::GetColour( wxSYS_COLOUR_WINDOW ) );
	191	SetForegroundColour( parent->GetForegroundColour() );
	192
	193	Show( TRUE );
	194
	195	return TRUE;
	196	}
	197
	198	wxComboBox::~wxComboBox()
	199	{
	200	wxNode *node = m_clientObjectList.First();
	201	while (node)
	202	{
	203	wxClientData cd = (wxClientData)node->Data();
	204	if (cd) delete cd;
	205	node = node->Next();
	206	}
	207	m_clientObjectList.Clear();
	208
	209	m_clientDataList.Clear();
	210	}
	211
	212	void wxComboBox::AppendCommon( const wxString &item )
	213	{
	214	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	215
	216	GtkWidget *list = GTK_COMBO(m_widget)->list;
	217
	218	GtkWidget *list_item = gtk_list_item_new_with_label( wxGTK_CONV( item ) );
	219
	220	gtk_container_add( GTK_CONTAINER(list), list_item );
	221
	222	gtk_signal_connect( GTK_OBJECT(list_item), "select",
	223	GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
	224
	225	if (GTK_WIDGET_REALIZED(m_widget))
	226	{
	227	gtk_widget_realize( list_item );
	228	gtk_widget_realize( GTK_BIN(list_item)->child );
	229
	230	if (m_widgetStyle) ApplyWidgetStyle();
	231	}
	232
	233	gtk_widget_show( list_item );
	234	}
	235
	236	void wxComboBox::Append( const wxString &item )
	237	{
	238	m_clientDataList.Append( (wxObject*) NULL );
	239	m_clientObjectList.Append( (wxObject*) NULL );
	240
	241	AppendCommon( item );
	242	}
	243
	244	void wxComboBox::Append( const wxString &item, void *clientData )
	245	{
	246	m_clientDataList.Append( (wxObject*) clientData );
	247	m_clientObjectList.Append( (wxObject*)NULL );
	248
	249	AppendCommon( item );
	250	}
	251
	252	void wxComboBox::Append( const wxString &item, wxClientData *clientData )
	253	{
	254	m_clientDataList.Append( (wxObject*) NULL );
	255	m_clientObjectList.Append( (wxObject*) clientData );
	256
	257	AppendCommon( item );
	258	}
	259
	260	void wxComboBox::SetClientData( int n, void* clientData )
	261	{
	262	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	263
	264	wxNode *node = m_clientDataList.Nth( n );
	265	if (!node) return;
	266
	267	node->SetData( (wxObject*) clientData );
	268	}
	269
	270	void* wxComboBox::GetClientData( int n )
	271	{
	272	wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid combobox") );
	273
	274	wxNode *node = m_clientDataList.Nth( n );
	275	if (!node) return NULL;
	276
	277	return node->Data();
	278	}
	279
	280	void wxComboBox::SetClientObject( int n, wxClientData* clientData )
	281	{
	282	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	283
	284	wxNode *node = m_clientObjectList.Nth( n );
	285	if (!node) return;
	286
	287	wxClientData cd = (wxClientData) node->Data();
	288	if (cd) delete cd;
	289
	290	node->SetData( (wxObject*) clientData );
	291	}
	292
	293	wxClientData* wxComboBox::GetClientObject( int n )
	294	{
	295	wxCHECK_MSG( m_widget != NULL, (wxClientData*)NULL, wxT("invalid combobox") );
	296
	297	wxNode *node = m_clientObjectList.Nth( n );
	298	if (!node) return (wxClientData*) NULL;
	299
	300	return (wxClientData*) node->Data();
	301	}
	302
	303	void wxComboBox::Clear()
	304	{
	305	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	306
	307	GtkWidget *list = GTK_COMBO(m_widget)->list;
	308	gtk_list_clear_items( GTK_LIST(list), 0, Number() );
	309
	310	wxNode *node = m_clientObjectList.First();
	311	while (node)
	312	{
	313	wxClientData cd = (wxClientData)node->Data();
	314	if (cd) delete cd;
	315	node = node->Next();
	316	}
	317	m_clientObjectList.Clear();
	318
	319	m_clientDataList.Clear();
	320	}
	321
	322	void wxComboBox::Delete( int n )
	323	{
	324	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	325
	326	GtkList *listbox = GTK_LIST( GTK_COMBO(m_widget)->list );
	327
	328	GList *child = g_list_nth( listbox->children, n );
	329
	330	if (!child)
	331	{
	332	wxFAIL_MSG(wxT("wrong index"));
	333	return;
	334	}
	335
	336	GList list = g_list_append( (GList) NULL, child->data );
	337	gtk_list_remove_items( listbox, list );
	338	g_list_free( list );
	339
	340	wxNode *node = m_clientObjectList.Nth( n );
	341	if (node)
	342	{
	343	wxClientData cd = (wxClientData)node->Data();
	344	if (cd) delete cd;
	345	m_clientObjectList.DeleteNode( node );
	346	}
	347
	348	node = m_clientDataList.Nth( n );
	349	if (node)
	350	{
	351	m_clientDataList.DeleteNode( node );
	352	}
	353	}
	354
	355	int wxComboBox::FindString( const wxString &item )
	356	{
	357	wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );
	358
	359	GtkWidget *list = GTK_COMBO(m_widget)->list;
	360
	361	GList *child = GTK_LIST(list)->children;
	362	int count = 0;
	363	while (child)
	364	{
	365	GtkBin *bin = GTK_BIN( child->data );
	366	GtkLabel *label = GTK_LABEL( bin->child );
	367	if (item == wxString(label->label,*wxConvCurrent))
	368	return count;
	369	count++;
	370	child = child->next;
	371	}
	372
	373	return wxNOT_FOUND;
	374	}
	375
	376	int wxComboBox::GetSelection() const
	377	{
	378	wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );
	379
	380	GtkWidget *list = GTK_COMBO(m_widget)->list;
	381
	382	GList *selection = GTK_LIST(list)->selection;
	383	if (selection)
	384	{
	385	GList *child = GTK_LIST(list)->children;
	386	int count = 0;
	387	while (child)
	388	{
	389	if (child->data == selection->data) return count;
	390	count++;
	391	child = child->next;
	392	}
	393	}
	394
	395	return -1;
	396	}
	397
	398	wxString wxComboBox::GetString( int n ) const
	399	{
	400	wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") );
	401
	402	GtkWidget *list = GTK_COMBO(m_widget)->list;
	403
	404	wxString str;
	405	GList *child = g_list_nth( GTK_LIST(list)->children, n );
	406	if (child)
	407	{
	408	GtkBin *bin = GTK_BIN( child->data );
	409	GtkLabel *label = GTK_LABEL( bin->child );
	410	#ifdef __WXGTK20__
	411	str = wxGTK_CONV_BACK( gtk_label_get_text( label) );
	412	#else
	413	str = wxString( label->label );
	414	#endif
	415	}
	416	else
	417	{
	418	wxFAIL_MSG( wxT("wxComboBox: wrong index") );
	419	}
	420
	421	return str;
	422	}
	423
	424	wxString wxComboBox::GetStringSelection() const
	425	{
	426	wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") );
	427
	428	GtkWidget *list = GTK_COMBO(m_widget)->list;
	429
	430	GList *selection = GTK_LIST(list)->selection;
	431	if (selection)
	432	{
	433	GtkBin *bin = GTK_BIN( selection->data );
	434	wxString tmp = wxString(GTK_LABEL( bin->child )->label,*wxConvCurrent);
	435	return tmp;
	436	}
	437
	438	wxFAIL_MSG( wxT("wxComboBox: no selection") );
	439
	440	return wxT("");
	441	}
	442
	443	int wxComboBox::Number() const
	444	{
	445	wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid combobox") );
	446
	447	GtkWidget *list = GTK_COMBO(m_widget)->list;
	448
	449	GList *child = GTK_LIST(list)->children;
	450	int count = 0;
	451	while (child) { count++; child = child->next; }
	452	return count;
	453	}
	454
	455	void wxComboBox::SetSelection( int n )
	456	{
	457	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	458
	459	DisableEvents();
	460
	461	GtkWidget *list = GTK_COMBO(m_widget)->list;
	462	gtk_list_unselect_item( GTK_LIST(list), m_prevSelection );
	463	gtk_list_select_item( GTK_LIST(list), n );
	464	m_prevSelection = n;
	465
	466	EnableEvents();
	467	}
	468
	469	void wxComboBox::SetStringSelection( const wxString &string )
	470	{
	471	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	472
	473	int res = FindString( string );
	474	if (res == -1) return;
	475	SetSelection( res );
	476	}
	477
	478	wxString wxComboBox::GetValue() const
	479	{
	480	GtkEntry *entry = GTK_ENTRY( GTK_COMBO(m_widget)->entry );
	481	wxString tmp( wxGTK_CONV_BACK( gtk_entry_get_text( entry ) ) );
	482
	483	#if 0
	484	for (int i = 0; i < wxStrlen(tmp.c_str()) +1; i++)
	485	{
	486	wxChar c = tmp[i];
	487	printf( "%d ", (int) (c) );
	488	}
	489	printf( "\n" );
	490	#endif
	491
	492	return tmp;
	493	}
	494
	495	void wxComboBox::SetValue( const wxString& value )
	496	{
	497	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	498
	499	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	500	wxString tmp = wxT("");
	501	if (!value.IsNull()) tmp = value;
	502	gtk_entry_set_text( GTK_ENTRY(entry), wxGTK_CONV( tmp ) );
	503	}
	504
	505	void wxComboBox::Copy()
	506	{
	507	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	508
	509	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	510	gtk_editable_copy_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG );
	511	}
	512
	513	void wxComboBox::Cut()
	514	{
	515	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	516
	517	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	518	gtk_editable_cut_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG );
	519	}
	520
	521	void wxComboBox::Paste()
	522	{
	523	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	524
	525	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	526	gtk_editable_paste_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG);
	527	}
	528
	529	void wxComboBox::SetInsertionPoint( long pos )
	530	{
	531	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	532
	533	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	534	gtk_entry_set_position( GTK_ENTRY(entry), (int)pos );
	535	}
	536
	537	void wxComboBox::SetInsertionPointEnd()
	538	{
	539	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	540
	541	SetInsertionPoint( -1 );
	542	}
	543
	544	long wxComboBox::GetInsertionPoint() const
	545	{
	546	return (long) GET_EDITABLE_POS( GTK_COMBO(m_widget)->entry );
	547	}
	548
	549	long wxComboBox::GetLastPosition() const
	550	{
	551	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	552	int pos = GTK_ENTRY(entry)->text_length;
	553	return (long) pos-1;
	554	}
	555
	556	void wxComboBox::Replace( long from, long to, const wxString& value )
	557	{
	558	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	559
	560	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	561	gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
	562	if (value.IsNull()) return;
	563	gint pos = (gint)to;
	564
	565	#if wxUSE_UNICODE
	566	wxCharBuffer buffer = wxConvUTF8.cWX2MB( value );
	567	gtk_editable_insert_text( GTK_EDITABLE(entry), (const char) buffer, strlen( (const char) buffer ), &pos );
	568	#else
	569	gtk_editable_insert_text( GTK_EDITABLE(entry), value.c_str(), value.Length(), &pos );
	570	#endif
	571	}
	572
	573	void wxComboBox::Remove(long from, long to)
	574	{
	575	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	576
	577	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	578	gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
	579	}
	580
	581	void wxComboBox::SetSelection( long from, long to )
	582	{
	583	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	584	gtk_editable_select_region( GTK_EDITABLE(entry), (gint)from, (gint)to );
	585	}
	586
	587	void wxComboBox::SetEditable( bool editable )
	588	{
	589	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	590	gtk_entry_set_editable( GTK_ENTRY(entry), editable );
	591	}
	592
	593	void wxComboBox::OnChar( wxKeyEvent &event )
	594	{
	595	if ( event.KeyCode() == WXK_RETURN )
	596	{
	597	wxString value = GetValue();
	598
	599	if ( Number() == 0 )
	600	{
	601	// make Enter generate "selected" event if there is only one item
	602	// in the combobox - without it, it's impossible to select it at
	603	// all!
	604	wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );
	605	event.SetInt( 0 );
	606	event.SetString( value );
	607	event.SetEventObject( this );
	608	GetEventHandler()->ProcessEvent( event );
	609	}
	610	else
	611	{
	612	// add the item to the list if it's not there yet
	613	if ( FindString(value) == wxNOT_FOUND )
	614	{
	615	Append(value);
	616	SetStringSelection(value);
	617
	618	// and generate the selected event for it
	619	wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );
	620	event.SetInt( Number() - 1 );
	621	event.SetString( value );
	622	event.SetEventObject( this );
	623	GetEventHandler()->ProcessEvent( event );
	624	}
	625
	626	// This will invoke the dialog default action, such
	627	// as the clicking the default button.
	628
	629	wxWindow *top_frame = m_parent;
	630	while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
	631	top_frame = top_frame->GetParent();
	632
	633	if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
	634	{
	635	GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
	636
	637	if (window->default_widget)
	638	{
	639	gtk_widget_activate (window->default_widget);
	640	return;
	641	}
	642	}
	643
	644	return;
	645	}
	646	}
	647
	648	event.Skip();
	649	}
	650
	651	void wxComboBox::DisableEvents()
	652	{
	653	GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
	654	GList *child = list->children;
	655	while (child)
	656	{
	657	gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
	658	GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
	659
	660	child = child->next;
	661	}
	662	}
	663
	664	void wxComboBox::EnableEvents()
	665	{
	666	GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
	667	GList *child = list->children;
	668	while (child)
	669	{
	670	gtk_signal_connect( GTK_OBJECT(child->data), "select",
	671	GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
	672
	673	child = child->next;
	674	}
	675	}
	676
	677	void wxComboBox::OnSize( wxSizeEvent &event )
	678	{
	679	event.Skip();
	680
	681	#if 0
	682	int w = 21;
	683	gtk_widget_set_usize( GTK_COMBO(m_widget)->entry, m_width-w-1, m_height );
	684
	685	gtk_widget_set_uposition( GTK_COMBO(m_widget)->button, m_x+m_width-w, m_y );
	686	gtk_widget_set_usize( GTK_COMBO(m_widget)->button, w, m_height );
	687	#endif // 0
	688	}
	689
	690	void wxComboBox::ApplyWidgetStyle()
	691	{
	692	SetWidgetStyle();
	693
	694	// gtk_widget_set_style( GTK_COMBO(m_widget)->button, m_widgetStyle );
	695	gtk_widget_set_style( GTK_COMBO(m_widget)->entry, m_widgetStyle );
	696	gtk_widget_set_style( GTK_COMBO(m_widget)->list, m_widgetStyle );
	697
	698	GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
	699	GList *child = list->children;
	700	while (child)
	701	{
	702	gtk_widget_set_style( GTK_WIDGET(child->data), m_widgetStyle );
	703
	704	GtkBin *bin = GTK_BIN(child->data);
	705	gtk_widget_set_style( bin->child, m_widgetStyle );
	706
	707	child = child->next;
	708	}
	709	}
	710
	711	GtkWidget* wxComboBox::GetConnectWidget()
	712	{
	713	return GTK_COMBO(m_widget)->entry;
	714	}
	715
	716	bool wxComboBox::IsOwnGtkWindow( GdkWindow *window )
	717	{
	718	return ( (window == GTK_ENTRY( GTK_COMBO(m_widget)->entry )->text_area) \|\|
	719	(window == GTK_COMBO(m_widget)->button->window ) );
	720	}
	721
	722	wxSize wxComboBox::DoGetBestSize() const
	723	{
	724	wxSize ret( wxControl::DoGetBestSize() );
	725
	726	// we know better our horizontal extent: it depends on the longest string
	727	// in the combobox
	728	ret.x = 0;
	729	if ( m_widget )
	730	{
	731	GdkFont *font = m_font.GetInternalFont();
	732
	733	wxCoord width;
	734	size_t count = Number();
	735	for ( size_t n = 0; n < count; n++ )
	736	{
	737	width = (wxCoord)gdk_string_width(font, wxGTK_CONV( GetString(n) ) );
	738	if ( width > ret.x )
	739	ret.x = width;
	740	}
	741	}
	742
	743	// empty combobox should have some reasonable default size too
	744	if ( ret.x < 100 )
	745	ret.x = 100;
	746	return ret;
	747	}
	748
	749	#endif