d6acfcb5f6
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@13163 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
724 lines
19 KiB
C++
724 lines
19 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: combobox.cpp
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// Purpose:
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// Author: Robert Roebling
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// Id: $Id$
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// Copyright: (c) 1998 Robert Roebling
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifdef __GNUG__
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#pragma implementation "combobox.h"
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#endif
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#include "wx/combobox.h"
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#if wxUSE_COMBOBOX
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#include "wx/settings.h"
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#include "wx/intl.h"
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#include "wx/textctrl.h" // for wxEVT_COMMAND_TEXT_UPDATED
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#include <gdk/gdk.h>
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#include <gtk/gtk.h>
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//-----------------------------------------------------------------------------
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// idle system
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//-----------------------------------------------------------------------------
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extern void wxapp_install_idle_handler();
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extern bool g_isIdle;
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//-----------------------------------------------------------------------------
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// data
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//-----------------------------------------------------------------------------
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extern bool g_blockEventsOnDrag;
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//-----------------------------------------------------------------------------
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// "select"
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//-----------------------------------------------------------------------------
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static void
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gtk_combo_clicked_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
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{
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if (g_isIdle) wxapp_install_idle_handler();
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if (!combo->m_hasVMT) return;
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if (g_blockEventsOnDrag) return;
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if (combo->m_alreadySent)
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{
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combo->m_alreadySent = FALSE;
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return;
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}
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combo->m_alreadySent = TRUE;
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int curSelection = combo->GetSelection();
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if (combo->m_prevSelection != curSelection)
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{
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GtkWidget *list = GTK_COMBO(combo->m_widget)->list;
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gtk_list_unselect_item( GTK_LIST(list), combo->m_prevSelection );
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}
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combo->m_prevSelection = curSelection;
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wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() );
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event.SetInt( curSelection );
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event.SetString( combo->GetStringSelection() );
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event.SetEventObject( combo );
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combo->GetEventHandler()->ProcessEvent( event );
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}
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//-----------------------------------------------------------------------------
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// "changed"
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//-----------------------------------------------------------------------------
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static void
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gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
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{
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if (g_isIdle) wxapp_install_idle_handler();
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if (!combo->m_hasVMT) return;
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wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() );
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event.SetString( combo->GetValue() );
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event.SetEventObject( combo );
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combo->GetEventHandler()->ProcessEvent( event );
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}
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//-----------------------------------------------------------------------------
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// wxComboBox
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//-----------------------------------------------------------------------------
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IMPLEMENT_DYNAMIC_CLASS(wxComboBox,wxControl)
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BEGIN_EVENT_TABLE(wxComboBox, wxControl)
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EVT_SIZE(wxComboBox::OnSize)
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EVT_CHAR(wxComboBox::OnChar)
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END_EVENT_TABLE()
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bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
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const wxPoint& pos, const wxSize& size,
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int n, const wxString choices[],
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long style, const wxValidator& validator,
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const wxString& name )
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{
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m_alreadySent = FALSE;
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m_needParent = TRUE;
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m_acceptsFocus = TRUE;
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m_prevSelection = 0;
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if (!PreCreation( parent, pos, size ) ||
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!CreateBase( parent, id, pos, size, style, validator, name ))
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{
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wxFAIL_MSG( wxT("wxComboBox creation failed") );
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return FALSE;
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}
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m_widget = gtk_combo_new();
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// make it more useable
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gtk_combo_set_use_arrows_always( GTK_COMBO(m_widget), TRUE );
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// and case-sensitive
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gtk_combo_set_case_sensitive( GTK_COMBO(m_widget), TRUE );
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GtkWidget *list = GTK_COMBO(m_widget)->list;
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gtk_list_set_selection_mode( GTK_LIST(list), GTK_SELECTION_MULTIPLE );
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for (int i = 0; i < n; i++)
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{
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/* don't send first event, which GTK sends aways when
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inserting the first item */
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m_alreadySent = TRUE;
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GtkWidget *list_item = gtk_list_item_new_with_label( choices[i].mbc_str() );
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m_clientDataList.Append( (wxObject*)NULL );
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m_clientObjectList.Append( (wxObject*)NULL );
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gtk_container_add( GTK_CONTAINER(list), list_item );
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gtk_signal_connect( GTK_OBJECT(list_item), "select",
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GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
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gtk_widget_show( list_item );
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}
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m_parent->DoAddChild( this );
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m_focusWidget = GTK_COMBO(m_widget)->entry;
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PostCreation();
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ConnectWidget( GTK_COMBO(m_widget)->button );
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if (!value.IsNull()) SetValue( value );
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if (style & wxCB_READONLY)
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gtk_entry_set_editable( GTK_ENTRY( GTK_COMBO(m_widget)->entry ), FALSE );
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gtk_signal_connect( GTK_OBJECT(GTK_COMBO(m_widget)->entry), "changed",
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GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
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wxSize size_best( DoGetBestSize() );
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wxSize new_size( size );
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if (new_size.x == -1)
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new_size.x = size_best.x;
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if (new_size.y == -1)
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new_size.y = size_best.y;
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if (new_size.y > size_best.y)
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new_size.y = size_best.y;
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if ((new_size.x != size.x) || (new_size.y != size.y))
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{
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SetSize( new_size.x, new_size.y );
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// This is required for tool bar support
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gtk_widget_set_usize( m_widget, new_size.x, new_size.y );
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}
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SetBackgroundColour( wxSystemSettings::GetSystemColour( wxSYS_COLOUR_WINDOW ) );
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SetForegroundColour( parent->GetForegroundColour() );
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Show( TRUE );
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return TRUE;
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}
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wxComboBox::~wxComboBox()
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{
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wxNode *node = m_clientObjectList.First();
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while (node)
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{
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wxClientData *cd = (wxClientData*)node->Data();
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if (cd) delete cd;
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node = node->Next();
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}
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m_clientObjectList.Clear();
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m_clientDataList.Clear();
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}
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void wxComboBox::AppendCommon( const wxString &item )
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{
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wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
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GtkWidget *list = GTK_COMBO(m_widget)->list;
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GtkWidget *list_item = gtk_list_item_new_with_label( item.mbc_str() );
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gtk_container_add( GTK_CONTAINER(list), list_item );
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gtk_signal_connect( GTK_OBJECT(list_item), "select",
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GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
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if (GTK_WIDGET_REALIZED(m_widget))
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{
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gtk_widget_realize( list_item );
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gtk_widget_realize( GTK_BIN(list_item)->child );
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if (m_widgetStyle) ApplyWidgetStyle();
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}
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gtk_widget_show( list_item );
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}
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void wxComboBox::Append( const wxString &item )
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{
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m_clientDataList.Append( (wxObject*) NULL );
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m_clientObjectList.Append( (wxObject*) NULL );
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AppendCommon( item );
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}
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void wxComboBox::Append( const wxString &item, void *clientData )
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{
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m_clientDataList.Append( (wxObject*) clientData );
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m_clientObjectList.Append( (wxObject*)NULL );
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AppendCommon( item );
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}
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void wxComboBox::Append( const wxString &item, wxClientData *clientData )
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{
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m_clientDataList.Append( (wxObject*) NULL );
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m_clientObjectList.Append( (wxObject*) clientData );
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AppendCommon( item );
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}
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void wxComboBox::SetClientData( int n, void* clientData )
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{
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wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
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wxNode *node = m_clientDataList.Nth( n );
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if (!node) return;
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node->SetData( (wxObject*) clientData );
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}
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void* wxComboBox::GetClientData( int n )
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{
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wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid combobox") );
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wxNode *node = m_clientDataList.Nth( n );
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if (!node) return NULL;
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return node->Data();
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}
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void wxComboBox::SetClientObject( int n, wxClientData* clientData )
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{
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wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
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wxNode *node = m_clientObjectList.Nth( n );
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if (!node) return;
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wxClientData *cd = (wxClientData*) node->Data();
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if (cd) delete cd;
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node->SetData( (wxObject*) clientData );
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}
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wxClientData* wxComboBox::GetClientObject( int n )
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{
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wxCHECK_MSG( m_widget != NULL, (wxClientData*)NULL, wxT("invalid combobox") );
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wxNode *node = m_clientObjectList.Nth( n );
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if (!node) return (wxClientData*) NULL;
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return (wxClientData*) node->Data();
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}
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void wxComboBox::Clear()
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{
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wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
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GtkWidget *list = GTK_COMBO(m_widget)->list;
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gtk_list_clear_items( GTK_LIST(list), 0, Number() );
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wxNode *node = m_clientObjectList.First();
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while (node)
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{
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wxClientData *cd = (wxClientData*)node->Data();
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if (cd) delete cd;
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node = node->Next();
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}
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m_clientObjectList.Clear();
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m_clientDataList.Clear();
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}
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void wxComboBox::Delete( int n )
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{
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wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
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GtkList *listbox = GTK_LIST( GTK_COMBO(m_widget)->list );
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GList *child = g_list_nth( listbox->children, n );
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if (!child)
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{
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wxFAIL_MSG(wxT("wrong index"));
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return;
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}
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GList *list = g_list_append( (GList*) NULL, child->data );
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gtk_list_remove_items( listbox, list );
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g_list_free( list );
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wxNode *node = m_clientObjectList.Nth( n );
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if (node)
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{
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wxClientData *cd = (wxClientData*)node->Data();
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if (cd) delete cd;
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m_clientObjectList.DeleteNode( node );
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}
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node = m_clientDataList.Nth( n );
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if (node)
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{
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m_clientDataList.DeleteNode( node );
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}
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}
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int wxComboBox::FindString( const wxString &item )
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{
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wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );
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GtkWidget *list = GTK_COMBO(m_widget)->list;
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GList *child = GTK_LIST(list)->children;
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int count = 0;
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while (child)
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{
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GtkBin *bin = GTK_BIN( child->data );
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GtkLabel *label = GTK_LABEL( bin->child );
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if (item == wxString(label->label,*wxConvCurrent))
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return count;
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count++;
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child = child->next;
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}
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return wxNOT_FOUND;
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}
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int wxComboBox::GetSelection() const
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{
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wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );
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GtkWidget *list = GTK_COMBO(m_widget)->list;
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GList *selection = GTK_LIST(list)->selection;
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if (selection)
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{
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GList *child = GTK_LIST(list)->children;
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int count = 0;
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while (child)
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{
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if (child->data == selection->data) return count;
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count++;
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child = child->next;
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}
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}
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return -1;
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}
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wxString wxComboBox::GetString( int n ) const
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{
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wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") );
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GtkWidget *list = GTK_COMBO(m_widget)->list;
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wxString str;
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GList *child = g_list_nth( GTK_LIST(list)->children, n );
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if (child)
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{
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GtkBin *bin = GTK_BIN( child->data );
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GtkLabel *label = GTK_LABEL( bin->child );
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str = wxString(label->label,*wxConvCurrent);
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}
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else
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{
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wxFAIL_MSG( wxT("wxComboBox: wrong index") );
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}
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return str;
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}
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wxString wxComboBox::GetStringSelection() const
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{
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wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") );
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GtkWidget *list = GTK_COMBO(m_widget)->list;
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GList *selection = GTK_LIST(list)->selection;
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if (selection)
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{
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GtkBin *bin = GTK_BIN( selection->data );
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wxString tmp = wxString(GTK_LABEL( bin->child )->label,*wxConvCurrent);
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return tmp;
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}
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wxFAIL_MSG( wxT("wxComboBox: no selection") );
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return wxT("");
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}
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int wxComboBox::Number() const
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{
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wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid combobox") );
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GtkWidget *list = GTK_COMBO(m_widget)->list;
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GList *child = GTK_LIST(list)->children;
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int count = 0;
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while (child) { count++; child = child->next; }
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return count;
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}
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void wxComboBox::SetSelection( int n )
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{
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wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
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DisableEvents();
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GtkWidget *list = GTK_COMBO(m_widget)->list;
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gtk_list_unselect_item( GTK_LIST(list), m_prevSelection );
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gtk_list_select_item( GTK_LIST(list), n );
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m_prevSelection = n;
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EnableEvents();
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}
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void wxComboBox::SetStringSelection( const wxString &string )
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{
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wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
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int res = FindString( string );
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if (res == -1) return;
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SetSelection( res );
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}
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wxString wxComboBox::GetValue() const
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{
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GtkWidget *entry = GTK_COMBO(m_widget)->entry;
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wxString tmp = wxString(gtk_entry_get_text( GTK_ENTRY(entry) ),*wxConvCurrent);
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return tmp;
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}
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void wxComboBox::SetValue( const wxString& value )
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{
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wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
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GtkWidget *entry = GTK_COMBO(m_widget)->entry;
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wxString tmp = wxT("");
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if (!value.IsNull()) tmp = value;
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gtk_entry_set_text( GTK_ENTRY(entry), tmp.mbc_str() );
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}
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void wxComboBox::Copy()
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{
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wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
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GtkWidget *entry = GTK_COMBO(m_widget)->entry;
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#if defined(__WXGTK13__) || (GTK_MINOR_VERSION > 0)
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gtk_editable_copy_clipboard( GTK_EDITABLE(entry) );
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#else
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gtk_editable_copy_clipboard( GTK_EDITABLE(entry), 0 );
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#endif
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}
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void wxComboBox::Cut()
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{
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wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
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GtkWidget *entry = GTK_COMBO(m_widget)->entry;
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#if defined(__WXGTK13__) || (GTK_MINOR_VERSION > 0)
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gtk_editable_cut_clipboard( GTK_EDITABLE(entry) );
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#else
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gtk_editable_cut_clipboard( GTK_EDITABLE(entry), 0 );
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#endif
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}
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void wxComboBox::Paste()
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{
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wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
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GtkWidget *entry = GTK_COMBO(m_widget)->entry;
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#if defined(__WXGTK13__) || (GTK_MINOR_VERSION > 0)
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gtk_editable_paste_clipboard( GTK_EDITABLE(entry) );
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#else
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gtk_editable_paste_clipboard( GTK_EDITABLE(entry), 0 );
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#endif
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}
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void wxComboBox::SetInsertionPoint( long pos )
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{
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wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
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GtkWidget *entry = GTK_COMBO(m_widget)->entry;
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gtk_entry_set_position( GTK_ENTRY(entry), (int)pos );
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}
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void wxComboBox::SetInsertionPointEnd()
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{
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wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
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SetInsertionPoint( -1 );
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}
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long wxComboBox::GetInsertionPoint() const
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{
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GtkWidget *entry = GTK_COMBO(m_widget)->entry;
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return (long) GTK_EDITABLE(entry)->current_pos;
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}
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long wxComboBox::GetLastPosition() const
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{
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GtkWidget *entry = GTK_COMBO(m_widget)->entry;
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int pos = GTK_ENTRY(entry)->text_length;
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return (long) pos-1;
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}
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void wxComboBox::Replace( long from, long to, const wxString& value )
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{
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wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
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// FIXME: not quite sure how to do this method right in multibyte mode
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GtkWidget *entry = GTK_COMBO(m_widget)->entry;
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gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
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if (value.IsNull()) return;
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gint pos = (gint)to;
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gtk_editable_insert_text( GTK_EDITABLE(entry), value.mbc_str(), value.Length(), &pos );
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}
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void wxComboBox::Remove(long from, long to)
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{
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wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
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GtkWidget *entry = GTK_COMBO(m_widget)->entry;
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gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
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}
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void wxComboBox::SetSelection( long from, long to )
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{
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GtkWidget *entry = GTK_COMBO(m_widget)->entry;
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gtk_editable_select_region( GTK_EDITABLE(entry), (gint)from, (gint)to );
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}
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void wxComboBox::SetEditable( bool editable )
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{
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GtkWidget *entry = GTK_COMBO(m_widget)->entry;
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gtk_entry_set_editable( GTK_ENTRY(entry), editable );
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}
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void wxComboBox::OnChar( wxKeyEvent &event )
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|
{
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if ( event.KeyCode() == WXK_RETURN )
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|
{
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wxString value = GetValue();
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|
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if ( Number() == 0 )
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{
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// make Enter generate "selected" event if there is only one item
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// in the combobox - without it, it's impossible to select it at
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// all!
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wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );
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event.SetInt( 0 );
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event.SetString( value );
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event.SetEventObject( this );
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GetEventHandler()->ProcessEvent( event );
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}
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else
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{
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// add the item to the list if it's not there yet
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if ( FindString(value) == wxNOT_FOUND )
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{
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Append(value);
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SetStringSelection(value);
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|
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// and generate the selected event for it
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wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );
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event.SetInt( Number() - 1 );
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event.SetString( value );
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event.SetEventObject( this );
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GetEventHandler()->ProcessEvent( event );
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}
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//else: do nothing, this will open the listbox
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}
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}
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|
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event.Skip();
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}
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|
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void wxComboBox::DisableEvents()
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|
{
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|
GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
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GList *child = list->children;
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|
while (child)
|
|
{
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gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
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GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
|
|
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|
child = child->next;
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}
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|
}
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|
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void wxComboBox::EnableEvents()
|
|
{
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|
GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
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|
GList *child = list->children;
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|
while (child)
|
|
{
|
|
gtk_signal_connect( GTK_OBJECT(child->data), "select",
|
|
GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
|
|
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|
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
|