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;

    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::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_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;
#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	int curSelection = combo->GetSelection();
	61
	62	if (combo->m_prevSelection != curSelection)
	63	{
	64	GtkWidget *list = GTK_COMBO(combo->m_widget)->list;
	65	gtk_list_unselect_item( GTK_LIST(list), combo->m_prevSelection );
	66	}
	67
	68	combo->m_prevSelection = curSelection;
	69
	70	wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() );
	71	event.SetInt( curSelection );
	72	event.SetString( combo->GetStringSelection() );
	73	event.SetEventObject( combo );
	74
	75	combo->GetEventHandler()->ProcessEvent( event );
	76	}
	77
	78	//-----------------------------------------------------------------------------
	79	// "changed"
	80	//-----------------------------------------------------------------------------
	81
	82	static void
	83	gtk_text_changed_callback( GtkWidget WXUNUSED(widget), wxComboBox combo )
	84	{
	85	if (g_isIdle) wxapp_install_idle_handler();
	86
	87	if (!combo->m_hasVMT) return;
	88
	89	wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() );
	90	event.SetString( combo->GetValue() );
	91	event.SetEventObject( combo );
	92	combo->GetEventHandler()->ProcessEvent( event );
	93	}
	94
	95	//-----------------------------------------------------------------------------
	96	// wxComboBox
	97	//-----------------------------------------------------------------------------
	98
	99	IMPLEMENT_DYNAMIC_CLASS(wxComboBox,wxControl)
	100
	101	BEGIN_EVENT_TABLE(wxComboBox, wxControl)
	102	EVT_SIZE(wxComboBox::OnSize)
	103	EVT_CHAR(wxComboBox::OnChar)
	104	END_EVENT_TABLE()
	105
	106	bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
	107	const wxPoint& pos, const wxSize& size,
	108	int n, const wxString choices[],
	109	long style, const wxValidator& validator,
	110	const wxString& name )
	111	{
	112	m_alreadySent = FALSE;
	113	m_needParent = TRUE;
	114	m_acceptsFocus = TRUE;
	115	m_prevSelection = 0;
	116
	117	if (!PreCreation( parent, pos, size ) \|\|
	118	!CreateBase( parent, id, pos, size, style, validator, name ))
	119	{
	120	wxFAIL_MSG( wxT("wxComboBox creation failed") );
	121	return FALSE;
	122	}
	123
	124	m_widget = gtk_combo_new();
	125
	126	// make it more useable
	127	gtk_combo_set_use_arrows_always( GTK_COMBO(m_widget), TRUE );
	128
	129	// and case-sensitive
	130	gtk_combo_set_case_sensitive( GTK_COMBO(m_widget), TRUE );
	131
	132
	133	GtkWidget *list = GTK_COMBO(m_widget)->list;
	134
	135	gtk_list_set_selection_mode( GTK_LIST(list), GTK_SELECTION_MULTIPLE );
	136
	137	for (int i = 0; i < n; i++)
	138	{
	139	/* don't send first event, which GTK sends aways when
	140	inserting the first item */
	141	m_alreadySent = TRUE;
	142
	143	GtkWidget *list_item = gtk_list_item_new_with_label( choices[i].mbc_str() );
	144
	145	m_clientDataList.Append( (wxObject*)NULL );
	146	m_clientObjectList.Append( (wxObject*)NULL );
	147
	148	gtk_container_add( GTK_CONTAINER(list), list_item );
	149
	150	gtk_signal_connect( GTK_OBJECT(list_item), "select",
	151	GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
	152
	153	gtk_widget_show( list_item );
	154	}
	155
	156	m_parent->DoAddChild( this );
	157
	158	m_focusWidget = GTK_COMBO(m_widget)->entry;
	159
	160	PostCreation();
	161
	162	ConnectWidget( GTK_COMBO(m_widget)->button );
	163
	164	if (!value.IsNull()) SetValue( value );
	165
	166	if (style & wxCB_READONLY)
	167	gtk_entry_set_editable( GTK_ENTRY( GTK_COMBO(m_widget)->entry ), FALSE );
	168
	169	gtk_signal_connect( GTK_OBJECT(GTK_COMBO(m_widget)->entry), "changed",
	170	GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
	171
	172	wxSize size_best( DoGetBestSize() );
	173	wxSize new_size( size );
	174	if (new_size.x == -1)
	175	new_size.x = size_best.x;
	176	if (new_size.y == -1)
	177	new_size.y = size_best.y;
	178	if (new_size.y > size_best.y)
	179	new_size.y = size_best.y;
	180	if ((new_size.x != size.x) \|\| (new_size.y != size.y))
	181	{
	182	SetSize( new_size.x, new_size.y );
	183
	184	// This is required for tool bar support
	185	gtk_widget_set_usize( m_widget, new_size.x, new_size.y );
	186	}
	187
	188
	189	SetBackgroundColour( wxSystemSettings::GetSystemColour( wxSYS_COLOUR_WINDOW ) );
	190	SetForegroundColour( parent->GetForegroundColour() );
	191
	192	Show( TRUE );
	193
	194	return TRUE;
	195	}
	196
	197	wxComboBox::~wxComboBox()
	198	{
	199	wxNode *node = m_clientObjectList.First();
	200	while (node)
	201	{
	202	wxClientData cd = (wxClientData)node->Data();
	203	if (cd) delete cd;
	204	node = node->Next();
	205	}
	206	m_clientObjectList.Clear();
	207
	208	m_clientDataList.Clear();
	209	}
	210
	211	void wxComboBox::AppendCommon( const wxString &item )
	212	{
	213	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	214
	215	GtkWidget *list = GTK_COMBO(m_widget)->list;
	216
	217	GtkWidget *list_item = gtk_list_item_new_with_label( item.mbc_str() );
	218
	219	gtk_container_add( GTK_CONTAINER(list), list_item );
	220
	221	gtk_signal_connect( GTK_OBJECT(list_item), "select",
	222	GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
	223
	224	if (GTK_WIDGET_REALIZED(m_widget))
	225	{
	226	gtk_widget_realize( list_item );
	227	gtk_widget_realize( GTK_BIN(list_item)->child );
	228
	229	if (m_widgetStyle) ApplyWidgetStyle();
	230	}
	231
	232	gtk_widget_show( list_item );
	233	}
	234
	235	void wxComboBox::Append( const wxString &item )
	236	{
	237	m_clientDataList.Append( (wxObject*) NULL );
	238	m_clientObjectList.Append( (wxObject*) NULL );
	239
	240	AppendCommon( item );
	241	}
	242
	243	void wxComboBox::Append( const wxString &item, void *clientData )
	244	{
	245	m_clientDataList.Append( (wxObject*) clientData );
	246	m_clientObjectList.Append( (wxObject*)NULL );
	247
	248	AppendCommon( item );
	249	}
	250
	251	void wxComboBox::Append( const wxString &item, wxClientData *clientData )
	252	{
	253	m_clientDataList.Append( (wxObject*) NULL );
	254	m_clientObjectList.Append( (wxObject*) clientData );
	255
	256	AppendCommon( item );
	257	}
	258
	259	void wxComboBox::SetClientData( int n, void* clientData )
	260	{
	261	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	262
	263	wxNode *node = m_clientDataList.Nth( n );
	264	if (!node) return;
	265
	266	node->SetData( (wxObject*) clientData );
	267	}
	268
	269	void* wxComboBox::GetClientData( int n )
	270	{
	271	wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid combobox") );
	272
	273	wxNode *node = m_clientDataList.Nth( n );
	274	if (!node) return NULL;
	275
	276	return node->Data();
	277	}
	278
	279	void wxComboBox::SetClientObject( int n, wxClientData* clientData )
	280	{
	281	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	282
	283	wxNode *node = m_clientObjectList.Nth( n );
	284	if (!node) return;
	285
	286	wxClientData cd = (wxClientData) node->Data();
	287	if (cd) delete cd;
	288
	289	node->SetData( (wxObject*) clientData );
	290	}
	291
	292	wxClientData* wxComboBox::GetClientObject( int n )
	293	{
	294	wxCHECK_MSG( m_widget != NULL, (wxClientData*)NULL, wxT("invalid combobox") );
	295
	296	wxNode *node = m_clientDataList.Nth( n );
	297	if (!node) return (wxClientData*) NULL;
	298
	299	return (wxClientData*) node->Data();
	300	}
	301
	302	void wxComboBox::Clear()
	303	{
	304	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	305
	306	GtkWidget *list = GTK_COMBO(m_widget)->list;
	307	gtk_list_clear_items( GTK_LIST(list), 0, Number() );
	308
	309	wxNode *node = m_clientObjectList.First();
	310	while (node)
	311	{
	312	wxClientData cd = (wxClientData)node->Data();
	313	if (cd) delete cd;
	314	node = node->Next();
	315	}
	316	m_clientObjectList.Clear();
	317
	318	m_clientDataList.Clear();
	319	}
	320
	321	void wxComboBox::Delete( int n )
	322	{
	323	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	324
	325	GtkList *listbox = GTK_LIST( GTK_COMBO(m_widget)->list );
	326
	327	GList *child = g_list_nth( listbox->children, n );
	328
	329	if (!child)
	330	{
	331	wxFAIL_MSG(wxT("wrong index"));
	332	return;
	333	}
	334
	335	GList list = g_list_append( (GList) NULL, child->data );
	336	gtk_list_remove_items( listbox, list );
	337	g_list_free( list );
	338
	339	wxNode *node = m_clientObjectList.Nth( n );
	340	if (node)
	341	{
	342	wxClientData cd = (wxClientData)node->Data();
	343	if (cd) delete cd;
	344	m_clientObjectList.DeleteNode( node );
	345	}
	346
	347	node = m_clientDataList.Nth( n );
	348	if (node)
	349	{
	350	m_clientDataList.DeleteNode( node );
	351	}
	352	}
	353
	354	int wxComboBox::FindString( const wxString &item )
	355	{
	356	wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );
	357
	358	GtkWidget *list = GTK_COMBO(m_widget)->list;
	359
	360	GList *child = GTK_LIST(list)->children;
	361	int count = 0;
	362	while (child)
	363	{
	364	GtkBin *bin = GTK_BIN( child->data );
	365	GtkLabel *label = GTK_LABEL( bin->child );
	366	if (item == wxString(label->label,*wxConvCurrent))
	367	return count;
	368	count++;
	369	child = child->next;
	370	}
	371
	372	return wxNOT_FOUND;
	373	}
	374
	375	int wxComboBox::GetSelection() const
	376	{
	377	wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );
	378
	379	GtkWidget *list = GTK_COMBO(m_widget)->list;
	380
	381	GList *selection = GTK_LIST(list)->selection;
	382	if (selection)
	383	{
	384	GList *child = GTK_LIST(list)->children;
	385	int count = 0;
	386	while (child)
	387	{
	388	if (child->data == selection->data) return count;
	389	count++;
	390	child = child->next;
	391	}
	392	}
	393
	394	return -1;
	395	}
	396
	397	wxString wxComboBox::GetString( int n ) const
	398	{
	399	wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") );
	400
	401	GtkWidget *list = GTK_COMBO(m_widget)->list;
	402
	403	wxString str;
	404	GList *child = g_list_nth( GTK_LIST(list)->children, n );
	405	if (child)
	406	{
	407	GtkBin *bin = GTK_BIN( child->data );
	408	GtkLabel *label = GTK_LABEL( bin->child );
	409	str = wxString(label->label,*wxConvCurrent);
	410	}
	411	else
	412	{
	413	wxFAIL_MSG( wxT("wxComboBox: wrong index") );
	414	}
	415
	416	return str;
	417	}
	418
	419	wxString wxComboBox::GetStringSelection() const
	420	{
	421	wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") );
	422
	423	GtkWidget *list = GTK_COMBO(m_widget)->list;
	424
	425	GList *selection = GTK_LIST(list)->selection;
	426	if (selection)
	427	{
	428	GtkBin *bin = GTK_BIN( selection->data );
	429	wxString tmp = wxString(GTK_LABEL( bin->child )->label,*wxConvCurrent);
	430	return tmp;
	431	}
	432
	433	wxFAIL_MSG( wxT("wxComboBox: no selection") );
	434
	435	return wxT("");
	436	}
	437
	438	int wxComboBox::Number() const
	439	{
	440	wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid combobox") );
	441
	442	GtkWidget *list = GTK_COMBO(m_widget)->list;
	443
	444	GList *child = GTK_LIST(list)->children;
	445	int count = 0;
	446	while (child) { count++; child = child->next; }
	447	return count;
	448	}
	449
	450	void wxComboBox::SetSelection( int n )
	451	{
	452	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	453
	454	DisableEvents();
	455
	456	GtkWidget *list = GTK_COMBO(m_widget)->list;
	457	gtk_list_unselect_item( GTK_LIST(list), m_prevSelection );
	458	gtk_list_select_item( GTK_LIST(list), n );
	459	m_prevSelection = n;
	460
	461	EnableEvents();
	462	}
	463
	464	void wxComboBox::SetStringSelection( const wxString &string )
	465	{
	466	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	467
	468	int res = FindString( string );
	469	if (res == -1) return;
	470	SetSelection( res );
	471	}
	472
	473	wxString wxComboBox::GetValue() const
	474	{
	475	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	476	wxString tmp = wxString(gtk_entry_get_text( GTK_ENTRY(entry) ),*wxConvCurrent);
	477	return tmp;
	478	}
	479
	480	void wxComboBox::SetValue( const wxString& value )
	481	{
	482	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	483
	484	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	485	wxString tmp = wxT("");
	486	if (!value.IsNull()) tmp = value;
	487	gtk_entry_set_text( GTK_ENTRY(entry), tmp.mbc_str() );
	488	}
	489
	490	void wxComboBox::Copy()
	491	{
	492	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	493
	494	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	495	#if defined(__WXGTK13__) \|\| (GTK_MINOR_VERSION > 0)
	496	gtk_editable_copy_clipboard( GTK_EDITABLE(entry) );
	497	#else
	498	gtk_editable_copy_clipboard( GTK_EDITABLE(entry), 0 );
	499	#endif
	500	}
	501
	502	void wxComboBox::Cut()
	503	{
	504	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	505
	506	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	507	#if defined(__WXGTK13__) \|\| (GTK_MINOR_VERSION > 0)
	508	gtk_editable_cut_clipboard( GTK_EDITABLE(entry) );
	509	#else
	510	gtk_editable_cut_clipboard( GTK_EDITABLE(entry), 0 );
	511	#endif
	512	}
	513
	514	void wxComboBox::Paste()
	515	{
	516	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	517
	518	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	519	#if defined(__WXGTK13__) \|\| (GTK_MINOR_VERSION > 0)
	520	gtk_editable_paste_clipboard( GTK_EDITABLE(entry) );
	521	#else
	522	gtk_editable_paste_clipboard( GTK_EDITABLE(entry), 0 );
	523	#endif
	524	}
	525
	526	void wxComboBox::SetInsertionPoint( long pos )
	527	{
	528	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	529
	530	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	531	gtk_entry_set_position( GTK_ENTRY(entry), (int)pos );
	532	}
	533
	534	void wxComboBox::SetInsertionPointEnd()
	535	{
	536	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	537
	538	SetInsertionPoint( -1 );
	539	}
	540
	541	long wxComboBox::GetInsertionPoint() const
	542	{
	543	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	544	return (long) GTK_EDITABLE(entry)->current_pos;
	545	}
	546
	547	long wxComboBox::GetLastPosition() const
	548	{
	549	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	550	int pos = GTK_ENTRY(entry)->text_length;
	551	return (long) pos-1;
	552	}
	553
	554	void wxComboBox::Replace( long from, long to, const wxString& value )
	555	{
	556	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	557	// FIXME: not quite sure how to do this method right in multibyte mode
	558
	559	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	560	gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
	561	if (value.IsNull()) return;
	562	gint pos = (gint)to;
	563	gtk_editable_insert_text( GTK_EDITABLE(entry), value.mbc_str(), value.Length(), &pos );
	564	}
	565
	566	void wxComboBox::Remove(long from, long to)
	567	{
	568	wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
	569
	570	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	571	gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
	572	}
	573
	574	void wxComboBox::SetSelection( long from, long to )
	575	{
	576	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	577	gtk_editable_select_region( GTK_EDITABLE(entry), (gint)from, (gint)to );
	578	}
	579
	580	void wxComboBox::SetEditable( bool editable )
	581	{
	582	GtkWidget *entry = GTK_COMBO(m_widget)->entry;
	583	gtk_entry_set_editable( GTK_ENTRY(entry), editable );
	584	}
	585
	586	void wxComboBox::OnChar( wxKeyEvent &event )
	587	{
	588	if ( event.KeyCode() == WXK_RETURN )
	589	{
	590	wxString value = GetValue();
	591
	592	if ( Number() == 0 )
	593	{
	594	// make Enter generate "selected" event if there is only one item
	595	// in the combobox - without it, it's impossible to select it at
	596	// all!
	597	wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );
	598	event.SetInt( 0 );
	599	event.SetString( value );
	600	event.SetEventObject( this );
	601	GetEventHandler()->ProcessEvent( event );
	602	}
	603	else
	604	{
	605	// add the item to the list if it's not there yet
	606	if ( FindString(value) == wxNOT_FOUND )
	607	{
	608	Append(value);
	609	SetStringSelection(value);
	610
	611	// and generate the selected event for it
	612	wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );
	613	event.SetInt( Number() - 1 );
	614	event.SetString( value );
	615	event.SetEventObject( this );
	616	GetEventHandler()->ProcessEvent( event );
	617	}
	618	//else: do nothing, this will open the listbox
	619	}
	620	}
	621
	622	event.Skip();
	623	}
	624
	625	void wxComboBox::DisableEvents()
	626	{
	627	GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
	628	GList *child = list->children;
	629	while (child)
	630	{
	631	gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
	632	GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
	633
	634	child = child->next;
	635	}
	636	}
	637
	638	void wxComboBox::EnableEvents()
	639	{
	640	GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
	641	GList *child = list->children;
	642	while (child)
	643	{
	644	gtk_signal_connect( GTK_OBJECT(child->data), "select",
	645	GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
	646
	647	child = child->next;
	648	}
	649	}
	650
	651	void wxComboBox::OnSize( wxSizeEvent &event )
	652	{
	653	event.Skip();
	654
	655	#if 0
	656	int w = 21;
	657	gtk_widget_set_usize( GTK_COMBO(m_widget)->entry, m_width-w-1, m_height );
	658
	659	gtk_widget_set_uposition( GTK_COMBO(m_widget)->button, m_x+m_width-w, m_y );
	660	gtk_widget_set_usize( GTK_COMBO(m_widget)->button, w, m_height );
	661	#endif // 0
	662	}
	663
	664	void wxComboBox::ApplyWidgetStyle()
	665	{
	666	SetWidgetStyle();
	667
	668	// gtk_widget_set_style( GTK_COMBO(m_widget)->button, m_widgetStyle );
	669	gtk_widget_set_style( GTK_COMBO(m_widget)->entry, m_widgetStyle );
	670	gtk_widget_set_style( GTK_COMBO(m_widget)->list, m_widgetStyle );
	671
	672	GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
	673	GList *child = list->children;
	674	while (child)
	675	{
	676	gtk_widget_set_style( GTK_WIDGET(child->data), m_widgetStyle );
	677
	678	GtkBin *bin = GTK_BIN(child->data);
	679	gtk_widget_set_style( bin->child, m_widgetStyle );
	680
	681	child = child->next;
	682	}
	683	}
	684
	685	GtkWidget* wxComboBox::GetConnectWidget()
	686	{
	687	return GTK_COMBO(m_widget)->entry;
	688	}
	689
	690	bool wxComboBox::IsOwnGtkWindow( GdkWindow *window )
	691	{
	692	return ( (window == GTK_ENTRY( GTK_COMBO(m_widget)->entry )->text_area) \|\|
	693	(window == GTK_COMBO(m_widget)->button->window ) );
	694	}
	695
	696	wxSize wxComboBox::DoGetBestSize() const
	697	{
	698	wxSize ret( wxControl::DoGetBestSize() );
	699
	700	// we know better our horizontal extent: it depends on the longest string
	701	// in the combobox
	702	ret.x = 0;
	703	if ( m_widget )
	704	{
	705	GdkFont *font = m_font.GetInternalFont();
	706
	707	wxCoord width;
	708	size_t count = Number();
	709	for ( size_t n = 0; n < count; n++ )
	710	{
	711	width = (wxCoord)gdk_string_width(font, GetString(n).mbc_str());
	712	if ( width > ret.x )
	713	ret.x = width;
	714	}
	715	}
	716
	717	// empty combobox should have some reasonable default size too
	718	if ( ret.x < 100 )
	719	ret.x = 100;
	720	return ret;
	721	}
	722
	723	#endif