X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1a5a83677555023d476401bab5809a1107222c74..cc4d5638c66a409e421420ed7110917755a66788:/src/gtk1/combobox.cpp?ds=sidebyside diff --git a/src/gtk1/combobox.cpp b/src/gtk1/combobox.cpp index 9965d5b5a7..e21c718950 100644 --- a/src/gtk1/combobox.cpp +++ b/src/gtk1/combobox.cpp @@ -1,348 +1,986 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: combobox.cpp +// Name: src/gtk1/combobox.cpp // Purpose: // Author: Robert Roebling -// Created: 01/02/97 -// Id: -// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem -// Licence: wxWindows licence +// Copyright: (c) 1998 Robert Roebling +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -#pragma implementation "combobox.h" -#endif +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" + +#if wxUSE_COMBOBOX #include "wx/combobox.h" -#include + +#ifndef WX_PRECOMP + #include "wx/intl.h" + #include "wx/settings.h" + #include "wx/textctrl.h" // for wxEVT_TEXT + #include "wx/arrstr.h" +#endif + +#include "wx/gtk1/private.h" + +//----------------------------------------------------------------------------- +// idle system +//----------------------------------------------------------------------------- + +extern void wxapp_install_idle_handler(); +extern bool g_isIdle; //----------------------------------------------------------------------------- // data //----------------------------------------------------------------------------- extern bool g_blockEventsOnDrag; +static int g_SelectionBeforePopup = wxID_NONE; // this means the popup is hidden //----------------------------------------------------------------------------- -// wxComboBox +// "changed" - typing and list item matches get changed, select-child +// if it doesn't match an item then just get a single changed //----------------------------------------------------------------------------- -//----------------------------------------------------------------------------- -// clicked - -static void gtk_combo_clicked_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo ) -{ - if (!combo->HasVMT()) return; - if (g_blockEventsOnDrag) return; - - if (combo->m_alreadySent) - { - combo->m_alreadySent = FALSE; - return; - } - - combo->m_alreadySent = TRUE; - - wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, combo->GetId()); - event.SetInt( combo->GetSelection() ); - wxString tmp( combo->GetStringSelection() ); - event.SetString( WXSTRINGCAST(tmp) ); - event.SetEventObject(combo); - combo->GetEventHandler()->ProcessEvent(event); -}; +extern "C" { +static void +gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo ) +{ + if (g_isIdle) wxapp_install_idle_handler(); + + if (combo->m_ignoreNextUpdate) + { + combo->m_ignoreNextUpdate = false; + return; + } + + if (!combo->m_hasVMT) return; + + wxCommandEvent event( wxEVT_TEXT, combo->GetId() ); + event.SetString( combo->GetValue() ); + event.SetEventObject( combo ); + combo->HandleWindowEvent( event ); +} +} + +extern "C" { +static void +gtk_dummy_callback(GtkEntry *WXUNUSED(entry), GtkCombo *WXUNUSED(combo)) +{ +} +} + +extern "C" { +static void +gtk_popup_hide_callback(GtkCombo *WXUNUSED(gtk_combo), wxComboBox *combo) +{ + // when the popup is hidden, throw a SELECTED event only if the combobox + // selection changed. + const int curSelection = combo->GetCurrentSelection(); + + const bool hasChanged = curSelection != g_SelectionBeforePopup; + + // reset the selection flag to value meaning that it is hidden and do it + // now, before generating the events, so that GetSelection() returns the + // new value from the event handler + g_SelectionBeforePopup = wxID_NONE; + + if ( hasChanged ) + { + wxCommandEvent event( wxEVT_COMBOBOX, combo->GetId() ); + event.SetInt( curSelection ); + event.SetString( combo->GetStringSelection() ); + event.SetEventObject( combo ); + combo->HandleWindowEvent( event ); + + // for consistency with the other ports, send TEXT event + wxCommandEvent event2( wxEVT_TEXT, combo->GetId() ); + event2.SetString( combo->GetStringSelection() ); + event2.SetEventObject( combo ); + combo->HandleWindowEvent( event2 ); + } +} +} + +extern "C" { +static void +gtk_popup_show_callback(GtkCombo *WXUNUSED(gtk_combo), wxComboBox *combo) +{ + // store the combobox selection value before the popup is shown + g_SelectionBeforePopup = combo->GetCurrentSelection(); +} +} //----------------------------------------------------------------------------- -// size - -/* -static gint gtk_combo_size_callback( GtkCombo *widget, GtkAllocation* alloc, wxComboBox *win ) -{ - if (!win->HasVMT()) return FALSE; - if (g_blockEventsOnDrag) return FALSE; - if (!widget->button) return FALSE; - - widget->button->allocation.x = - alloc->width - widget->button->allocation.width; - - return FALSE; -}; -*/ +// "select-child" - click/cursor get select-child, changed, select-child +//----------------------------------------------------------------------------- + +extern "C" { +static void +gtk_combo_select_child_callback( GtkList *WXUNUSED(list), GtkWidget *WXUNUSED(widget), wxComboBox *combo ) +{ + if (g_isIdle) wxapp_install_idle_handler(); + + if (!combo->m_hasVMT) return; + + if (g_blockEventsOnDrag) return; + + int curSelection = combo->GetCurrentSelection(); + + if (combo->m_prevSelection == curSelection) return; + + GtkWidget *list = GTK_COMBO(combo->m_widget)->list; + gtk_list_unselect_item( GTK_LIST(list), combo->m_prevSelection ); + + combo->m_prevSelection = curSelection; + + // Quickly set the value of the combo box + // as GTK+ does that only AFTER the event + // is sent. + gtk_signal_disconnect_by_func( GTK_OBJECT(GTK_COMBO(combo->GetHandle())->entry), + GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)combo ); + combo->SetValue( combo->GetStringSelection() ); + gtk_signal_connect_after( GTK_OBJECT(GTK_COMBO(combo->GetHandle())->entry), "changed", + GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)combo ); + // throw a SELECTED event only if the combobox popup is hidden (wxID_NONE) + // because when combobox popup is shown, gtk_combo_select_child_callback is + // called each times the mouse is over an item with a pressed button so a lot + // of SELECTED event could be generated if the user keep the mouse button down + // and select other items ... + if (g_SelectionBeforePopup == wxID_NONE) + { + wxCommandEvent event( wxEVT_COMBOBOX, combo->GetId() ); + event.SetInt( curSelection ); + event.SetString( combo->GetStringSelection() ); + event.SetEventObject( combo ); + combo->HandleWindowEvent( event ); + + // for consistency with the other ports, don't generate text update + // events while the user is browsing the combobox neither + wxCommandEvent event2( wxEVT_TEXT, combo->GetId() ); + event2.SetString( combo->GetValue() ); + event2.SetEventObject( combo ); + combo->HandleWindowEvent( event2 ); + } +} +} + +//----------------------------------------------------------------------------- +// wxComboBox //----------------------------------------------------------------------------- -IMPLEMENT_DYNAMIC_CLASS(wxComboBox,wxControl) - -bool wxComboBox::Create(wxWindow *parent, wxWindowID id, const wxString& value, - const wxPoint& pos, const wxSize& size, - int n, const wxString choices[], - long style, const wxString& name ) -{ - m_alreadySent = FALSE; - m_needParent = TRUE; - - PreCreation( parent, id, pos, size, style, name ); - - m_widget = gtk_combo_new(); - - wxSize newSize = size; - if (newSize.x == -1) newSize.x = 100; - if (newSize.y == -1) newSize.y = 26; - SetSize( newSize.x, newSize.y ); - - GtkWidget *list = GTK_COMBO(m_widget)->list; - - for (int i = 0; i < n; i++) - { - GtkWidget *list_item; - list_item = gtk_list_item_new_with_label( choices[i] ); - - gtk_container_add( GTK_CONTAINER(list), list_item ); - - m_clientData.Append( (wxObject*)NULL ); - - gtk_widget_show( list_item ); - - gtk_signal_connect( GTK_OBJECT(list_item), "select", - GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this ); - }; - - PostCreation(); - -/* - gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate", - GTK_SIGNAL_FUNC(gtk_combo_size_callback), (gpointer)this ); -*/ - - if (!value.IsNull()) SetValue( value ); - - Show( TRUE ); - - return TRUE; -}; - -void wxComboBox::Clear(void) -{ - GtkWidget *list = GTK_COMBO(m_widget)->list; - gtk_list_clear_items( GTK_LIST(list), 0, Number() ); - - m_clientData.Clear(); -}; - -void wxComboBox::Append( const wxString &item ) -{ - Append( item, (char*)NULL ); -}; - -void wxComboBox::Append( const wxString &item, char *clientData ) -{ - GtkWidget *list = GTK_COMBO(m_widget)->list; - - GtkWidget *list_item; - list_item = gtk_list_item_new_with_label( item ); - - gtk_signal_connect( GTK_OBJECT(list_item), "select", - GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this ); - - gtk_container_add( GTK_CONTAINER(list), list_item ); - - gtk_widget_show( list_item ); - - m_clientData.Append( (wxObject*)clientData ); -}; - -void wxComboBox::Delete( int n ) -{ - GtkWidget *list = GTK_COMBO(m_widget)->list; - gtk_list_clear_items( GTK_LIST(list), n, n ); - - wxNode *node = m_clientData.Nth( n ); - if (!node) - { - wxFAIL_MSG(_("wxComboBox::Delete wrong index")); - } - else - m_clientData.DeleteNode( node ); -}; - -int wxComboBox::FindString( const wxString &item ) -{ - 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 == label->label) return count; - count++; - child = child->next; - }; - return -1; -}; - -char* wxComboBox::GetClientData( int n ) -{ - wxNode *node = m_clientData.Nth( n ); - if (node) return (char*)node->Data(); - return NULL; -}; - -void wxComboBox::SetClientData( int n, char * clientData ) -{ - wxNode *node = m_clientData.Nth( n ); - if (node) node->SetData( (wxObject*) clientData ); -}; - -int wxComboBox::GetSelection(void) const -{ - GtkWidget *list = GTK_COMBO(m_widget)->list; - - GList *selection = GTK_LIST(list)->selection; - if (selection) - { +BEGIN_EVENT_TABLE(wxComboBox, wxControl) + EVT_SIZE(wxComboBox::OnSize) + EVT_CHAR(wxComboBox::OnChar) + + EVT_MENU(wxID_CUT, wxComboBox::OnCut) + EVT_MENU(wxID_COPY, wxComboBox::OnCopy) + EVT_MENU(wxID_PASTE, wxComboBox::OnPaste) + EVT_MENU(wxID_UNDO, wxComboBox::OnUndo) + EVT_MENU(wxID_REDO, wxComboBox::OnRedo) + EVT_MENU(wxID_CLEAR, wxComboBox::OnDelete) + EVT_MENU(wxID_SELECTALL, wxComboBox::OnSelectAll) + + EVT_UPDATE_UI(wxID_CUT, wxComboBox::OnUpdateCut) + EVT_UPDATE_UI(wxID_COPY, wxComboBox::OnUpdateCopy) + EVT_UPDATE_UI(wxID_PASTE, wxComboBox::OnUpdatePaste) + EVT_UPDATE_UI(wxID_UNDO, wxComboBox::OnUpdateUndo) + EVT_UPDATE_UI(wxID_REDO, wxComboBox::OnUpdateRedo) + EVT_UPDATE_UI(wxID_CLEAR, wxComboBox::OnUpdateDelete) + EVT_UPDATE_UI(wxID_SELECTALL, wxComboBox::OnUpdateSelectAll) +END_EVENT_TABLE() + +bool wxComboBox::Create( wxWindow *parent, wxWindowID id, + const wxString& value, + const wxPoint& pos, const wxSize& size, + const wxArrayString& choices, + long style, const wxValidator& validator, + const wxString& name ) +{ + wxCArrayString chs(choices); + + return Create( parent, id, value, pos, size, chs.GetCount(), + chs.GetStrings(), style, validator, name ); +} + +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_ignoreNextUpdate = 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(); + GtkCombo *combo = GTK_COMBO(m_widget); + + // Disable GTK's broken events ... + gtk_signal_disconnect( GTK_OBJECT(combo->entry), combo->entry_change_id ); + // ... and add surrogate handler. + combo->entry_change_id = gtk_signal_connect (GTK_OBJECT (combo->entry), "changed", + (GtkSignalFunc) gtk_dummy_callback, combo); + + // 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++) + { + GtkWidget *list_item = gtk_list_item_new_with_label( wxGTK_CONV( choices[i] ) ); + + m_clientDataList.Append( NULL ); + m_clientObjectList.Append( NULL ); + + gtk_container_add( GTK_CONTAINER(list), list_item ); + + gtk_widget_show( list_item ); + } + + m_parent->DoAddChild( this ); + + m_focusWidget = combo->entry; + + PostCreation(size); + + ConnectWidget( combo->button ); + + // MSW's combo box shows the value and the selection is -1 + gtk_entry_set_text( GTK_ENTRY(combo->entry), wxGTK_CONV(value) ); + gtk_list_unselect_all( GTK_LIST(combo->list) ); + + if (style & wxCB_READONLY) + gtk_entry_set_editable( GTK_ENTRY( combo->entry ), FALSE ); + + // "show" and "hide" events are generated when user click on the combobox button which popups a list + // this list is the "popwin" gtk widget + gtk_signal_connect( GTK_OBJECT(GTK_COMBO(combo)->popwin), "hide", + GTK_SIGNAL_FUNC(gtk_popup_hide_callback), (gpointer)this ); + gtk_signal_connect( GTK_OBJECT(GTK_COMBO(combo)->popwin), "show", + GTK_SIGNAL_FUNC(gtk_popup_show_callback), (gpointer)this ); + + gtk_signal_connect_after( GTK_OBJECT(combo->entry), "changed", + GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this ); + + gtk_signal_connect_after( GTK_OBJECT(combo->list), "select-child", + GTK_SIGNAL_FUNC(gtk_combo_select_child_callback), (gpointer)this ); + + SetInitialSize(size); // need this too because this is a wxControlWithItems + + // This is required for tool bar support +// wxSize setsize = GetSize(); +// gtk_widget_set_usize( m_widget, setsize.x, setsize.y ); + + return true; +} + +wxComboBox::~wxComboBox() +{ + wxList::compatibility_iterator node = m_clientObjectList.GetFirst(); + while (node) + { + wxClientData *cd = (wxClientData*)node->GetData(); + if (cd) delete cd; + node = node->GetNext(); + } + m_clientObjectList.Clear(); + + m_clientDataList.Clear(); +} + +void wxComboBox::SetFocus() +{ + if ( m_hasFocus ) + { + // don't do anything if we already have focus + return; + } + + gtk_widget_grab_focus( m_focusWidget ); +} + +int wxComboBox::DoInsertItems(const wxArrayStringsAdapter& items, + unsigned int pos, + void **clientData, + wxClientDataType type) +{ + wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") ); + + DisableEvents(); + + GtkWidget *list = GTK_COMBO(m_widget)->list; + + GtkRcStyle *style = CreateWidgetStyle(); + + const unsigned int count = items.GetCount(); + for( unsigned int i = 0; i < count; ++i, ++pos ) + { + GtkWidget * + list_item = gtk_list_item_new_with_label( wxGTK_CONV( items[i] ) ); + + if ( pos == GetCount() ) + { + gtk_container_add( GTK_CONTAINER(list), list_item ); + } + else // insert, not append + { + GList *gitem_list = g_list_alloc (); + gitem_list->data = list_item; + gtk_list_insert_items( GTK_LIST (list), gitem_list, pos ); + } + + if (GTK_WIDGET_REALIZED(m_widget)) + { + gtk_widget_realize( list_item ); + gtk_widget_realize( GTK_BIN(list_item)->child ); + + if (style) + { + gtk_widget_modify_style( GTK_WIDGET( list_item ), style ); + GtkBin *bin = GTK_BIN( list_item ); + GtkWidget *label = GTK_WIDGET( bin->child ); + gtk_widget_modify_style( label, style ); + } + + } + + gtk_widget_show( list_item ); + + if ( m_clientDataList.GetCount() < GetCount() ) + m_clientDataList.Insert( pos, NULL ); + if ( m_clientObjectList.GetCount() < GetCount() ) + m_clientObjectList.Insert( pos, NULL ); + + AssignNewItemClientData(pos, clientData, i, type); + } + + if ( style ) + gtk_rc_style_unref( style ); + + EnableEvents(); + + InvalidateBestSize(); + + return pos - 1; +} + +void wxComboBox::DoSetItemClientData(unsigned int n, void* clientData) +{ + wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); + + wxList::compatibility_iterator node = m_clientDataList.Item( n ); + if (!node) return; + + node->SetData( (wxObject*) clientData ); +} + +void* wxComboBox::DoGetItemClientData(unsigned int n) const +{ + wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid combobox") ); + + wxList::compatibility_iterator node = m_clientDataList.Item( n ); + + return node ? node->GetData() : NULL; +} + +void wxComboBox::DoClear() +{ + wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); + + DisableEvents(); + + GtkWidget *list = GTK_COMBO(m_widget)->list; + gtk_list_clear_items( GTK_LIST(list), 0, (int)GetCount() ); + + m_clientObjectList.Clear(); + + m_clientDataList.Clear(); + + EnableEvents(); + + InvalidateBestSize(); +} + +void wxComboBox::DoDeleteOneItem(unsigned 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; + } + + DisableEvents(); + + GList *list = g_list_append( NULL, child->data ); + gtk_list_remove_items( listbox, list ); + g_list_free( list ); + + wxList::compatibility_iterator node = m_clientObjectList.Item( n ); + if (node) + { + m_clientObjectList.Erase( node ); + } + + node = m_clientDataList.Item( n ); + if (node) + m_clientDataList.Erase( node ); + + EnableEvents(); + + InvalidateBestSize(); +} + +void wxComboBox::SetString(unsigned int n, const wxString &text) +{ + wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); + + GtkWidget *list = GTK_COMBO(m_widget)->list; + + GList *child = g_list_nth( GTK_LIST(list)->children, n ); + if (child) + { + GtkBin *bin = GTK_BIN( child->data ); + GtkLabel *label = GTK_LABEL( bin->child ); + gtk_label_set_text(label, wxGTK_CONV(text)); + } + else + { + wxFAIL_MSG( wxT("wxComboBox: wrong index") ); + } + + InvalidateBestSize(); +} + +int wxComboBox::FindString( const wxString &item, bool bCase ) const +{ + wxCHECK_MSG( m_widget != NULL, wxNOT_FOUND, wxT("invalid combobox") ); + + GtkWidget *list = GTK_COMBO(m_widget)->list; + 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 -{ - GtkWidget *list = GTK_COMBO(m_widget)->list; - - GList *child = g_list_nth( GTK_LIST(list)->children, n ); - if (child) - { - GtkBin *bin = GTK_BIN( child->data ); - GtkLabel *label = GTK_LABEL( bin->child ); - return label->label; - }; - return ""; -}; - -wxString wxComboBox::GetStringSelection(void) const -{ - GtkWidget *list = GTK_COMBO(m_widget)->list; - - GList *selection = GTK_LIST(list)->selection; - if (selection) - { - GtkBin *bin = GTK_BIN( selection->data ); - wxString tmp = GTK_LABEL( bin->child )->label; - return tmp; - }; - return ""; -}; + GtkBin *bin = GTK_BIN( child->data ); + GtkLabel *label = GTK_LABEL( bin->child ); + wxString str( label->label ); + if (item.IsSameAs( str , bCase ) ) + return count; + + count++; + child = child->next; + } -int wxComboBox::Number(void) const + return wxNOT_FOUND; +} + +int wxComboBox::GetSelection() const { - GtkWidget *list = GTK_COMBO(m_widget)->list; - - GList *child = GTK_LIST(list)->children; - int count = 0; - while (child) { count++; child = child->next; }; - return count; -}; + // if the popup is currently opened, use the selection as it had been + // before it dropped down + return g_SelectionBeforePopup == wxID_NONE ? GetCurrentSelection() + : g_SelectionBeforePopup; +} -void wxComboBox::SetSelection( int n ) +int wxComboBox::GetCurrentSelection() 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 wxNOT_FOUND; +} + +wxString wxComboBox::GetString(unsigned int n) const +{ + wxCHECK_MSG( m_widget != NULL, wxEmptyString, 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 ); + } + else + { + wxFAIL_MSG( wxT("wxComboBox: wrong index") ); + } + + return str; +} + +wxString wxComboBox::GetStringSelection() const { - GtkWidget *list = GTK_COMBO(m_widget)->list; - gtk_list_select_item( GTK_LIST(list), n ); -}; + wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid combobox") ); + + GtkWidget *list = GTK_COMBO(m_widget)->list; + + GList *selection = GTK_LIST(list)->selection; + if (selection) + { + GtkBin *bin = GTK_BIN( selection->data ); + GtkLabel *label = GTK_LABEL( bin->child ); + wxString tmp( label->label ); + return tmp; + } + + wxFAIL_MSG( wxT("wxComboBox: no selection") ); + + return wxEmptyString; +} -void wxComboBox::SetStringSelection( const wxString &string ) +unsigned int wxComboBox::GetCount() const { - int res = FindString( string ); - if (res == -1) return; - SetSelection( res ); -}; + wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid combobox") ); -wxString wxComboBox::GetValue(void) const + GtkWidget *list = GTK_COMBO(m_widget)->list; + + GList *child = GTK_LIST(list)->children; + unsigned int count = 0; + while (child) { count++; child = child->next; } + return count; +} + +void wxComboBox::SetSelection( int n ) { - GtkWidget *entry = GTK_COMBO(m_widget)->entry; - wxString tmp = gtk_entry_get_text( GTK_ENTRY(entry) ); - return tmp; -}; + 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(); +} + +wxString wxComboBox::DoGetValue() 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 ) { - GtkWidget *entry = GTK_COMBO(m_widget)->entry; - wxString tmp = ""; - if (!value.IsNull()) tmp = value; - gtk_entry_set_text( GTK_ENTRY(entry), tmp ); -}; + wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); + + GtkWidget *entry = GTK_COMBO(m_widget)->entry; + gtk_entry_set_text( GTK_ENTRY(entry), wxGTK_CONV( value ) ); + + InvalidateBestSize(); +} + +void wxComboBox::WriteText(const wxString& value) +{ + wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); + + GtkWidget *entry = GTK_COMBO(m_widget)->entry; + GtkEditable * const edit = GTK_EDITABLE(entry); + + gtk_editable_delete_selection(edit); + gint len = gtk_editable_get_position(edit); + gtk_editable_insert_text(edit, wxGTK_CONV(value), -1, &len); + gtk_editable_set_position(edit, len); +} -void wxComboBox::Copy(void) +void wxComboBox::Copy() { - GtkWidget *entry = GTK_COMBO(m_widget)->entry; - gtk_editable_copy_clipboard( GTK_EDITABLE(entry), 0 ); -}; + wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); -void wxComboBox::Cut(void) + GtkWidget *entry = GTK_COMBO(m_widget)->entry; + gtk_editable_copy_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG ); +} + +void wxComboBox::Cut() { - GtkWidget *entry = GTK_COMBO(m_widget)->entry; - gtk_editable_cut_clipboard( GTK_EDITABLE(entry), 0 ); -}; + 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(void) +void wxComboBox::Paste() { - GtkWidget *entry = GTK_COMBO(m_widget)->entry; - gtk_editable_paste_clipboard( GTK_EDITABLE(entry), 0 ); -}; + wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); -void wxComboBox::SetInsertionPoint( long pos ) + GtkWidget *entry = GTK_COMBO(m_widget)->entry; + gtk_editable_paste_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG); +} + +void wxComboBox::Undo() +{ + // TODO +} + +void wxComboBox::Redo() +{ + // TODO +} + +void wxComboBox::SelectAll() +{ + SetSelection(0, GetLastPosition()); +} + +bool wxComboBox::CanUndo() const +{ + // TODO + return false; +} + +bool wxComboBox::CanRedo() const +{ + // TODO + return false; +} + +bool wxComboBox::HasSelection() const +{ + long from, to; + GetSelection(&from, &to); + return from != to; +} + +bool wxComboBox::CanCopy() const +{ + // Can copy if there's a selection + return HasSelection(); +} + +bool wxComboBox::CanCut() const +{ + return CanCopy() && IsEditable(); +} + +bool wxComboBox::CanPaste() const +{ + // TODO: check for text on the clipboard + return IsEditable() ; +} + +bool wxComboBox::IsEditable() const { - GtkWidget *entry = GTK_COMBO(m_widget)->entry; - int tmp = (int) pos; - gtk_entry_set_position( GTK_ENTRY(entry), tmp ); -}; + return !HasFlag(wxCB_READONLY); +} + -void wxComboBox::SetInsertionPointEnd(void) +void wxComboBox::SetInsertionPoint( long pos ) { - GtkWidget *entry = GTK_COMBO(m_widget)->entry; - int pos = GTK_ENTRY(entry)->text_length; - SetInsertionPoint( pos-1 ); -}; + wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") ); + + if ( pos == GetLastPosition() ) + pos = -1; -long wxComboBox::GetInsertionPoint(void) const + GtkWidget *entry = GTK_COMBO(m_widget)->entry; + gtk_entry_set_position( GTK_ENTRY(entry), (int)pos ); +} + +long wxComboBox::GetInsertionPoint() const { - GtkWidget *entry = GTK_COMBO(m_widget)->entry; - return (long) GTK_EDITABLE(entry)->current_pos; -}; + return (long) GET_EDITABLE_POS( GTK_COMBO(m_widget)->entry ); +} -long wxComboBox::GetLastPosition(void) const +wxTextPos wxComboBox::GetLastPosition() const { - GtkWidget *entry = GTK_COMBO(m_widget)->entry; - int pos = GTK_ENTRY(entry)->text_length; - return (long) pos-1; -}; + 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 ) { - 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, value.Length(), &pos ); -}; + 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.empty() ) 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::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::GetSelection( long* from, long* to ) const +{ + if (IsEditable()) + { + GtkEditable *editable = GTK_EDITABLE(GTK_COMBO(m_widget)->entry); + *from = (long) editable->selection_start_pos; + *to = (long) editable->selection_end_pos; + } +} + +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.GetKeyCode() == WXK_RETURN ) + { + // GTK automatically selects an item if its in the list + wxCommandEvent eventEnter(wxEVT_TEXT_ENTER, GetId()); + eventEnter.SetString( GetValue() ); + eventEnter.SetInt( GetSelection() ); + eventEnter.SetEventObject( this ); + + if (!HandleWindowEvent( eventEnter )) + { + // 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); + } + } + + // Catch GTK event so that GTK doesn't open the drop + // down list upon RETURN. + return; + } + + event.Skip(); +} + +void wxComboBox::DisableEvents() +{ + gtk_signal_disconnect_by_func( GTK_OBJECT(GTK_COMBO(m_widget)->list), + GTK_SIGNAL_FUNC(gtk_combo_select_child_callback), (gpointer)this ); + gtk_signal_disconnect_by_func( GTK_OBJECT(GTK_COMBO(m_widget)->entry), + GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this ); +} + +void wxComboBox::EnableEvents() +{ + gtk_signal_connect_after( GTK_OBJECT(GTK_COMBO(m_widget)->list), "select-child", + GTK_SIGNAL_FUNC(gtk_combo_select_child_callback), (gpointer)this ); + gtk_signal_connect_after( GTK_OBJECT(GTK_COMBO(m_widget)->entry), "changed", + GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this ); +} + +void wxComboBox::OnSize( wxSizeEvent &event ) +{ + // NB: In some situations (e.g. on non-first page of a wizard, if the + // size used is default size), GtkCombo widget is resized correctly, + // but it's look is not updated, it's rendered as if it was much wider. + // No other widgets are affected, so it looks like a bug in GTK+. + // Manually requesting resize calculation (as gtk_pizza_set_size does) + // fixes it. + if (GTK_WIDGET_VISIBLE(m_widget)) + gtk_widget_queue_resize(m_widget); + + event.Skip(); +} + +void wxComboBox::DoApplyWidgetStyle(GtkRcStyle *style) +{ +// gtk_widget_modify_style( GTK_COMBO(m_widget)->button, syle ); -void wxComboBox::Remove(long from, long to) + gtk_widget_modify_style( GTK_COMBO(m_widget)->entry, style ); + gtk_widget_modify_style( GTK_COMBO(m_widget)->list, style ); + + GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list ); + GList *child = list->children; + while (child) + { + gtk_widget_modify_style( GTK_WIDGET(child->data), style ); + + GtkBin *bin = GTK_BIN(child->data); + gtk_widget_modify_style( bin->child, style ); + + child = child->next; + } +} + +GtkWidget* wxComboBox::GetConnectWidget() { - GtkWidget *entry = GTK_COMBO(m_widget)->entry; - gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to ); -}; + return GTK_COMBO(m_widget)->entry; +} -void wxComboBox::SetSelection( long WXUNUSED(from), long WXUNUSED(to) ) +bool wxComboBox::IsOwnGtkWindow( GdkWindow *window ) { -}; + return ( (window == GTK_ENTRY( GTK_COMBO(m_widget)->entry )->text_area) || + (window == GTK_COMBO(m_widget)->button->window ) ); +} -void wxComboBox::SetEditable( bool WXUNUSED(editable) ) +wxSize wxComboBox::DoGetBestSize() const { -}; + wxSize ret( wxControl::DoGetBestSize() ); - + // we know better our horizontal extent: it depends on the longest string + // in the combobox + if ( m_widget ) + { + int width; + unsigned int count = GetCount(); + for ( unsigned int n = 0; n < count; n++ ) + { + GetTextExtent(GetString(n), &width, NULL, NULL, NULL ); + if ( width > ret.x ) + ret.x = width; + } + } + + // empty combobox should have some reasonable default size too + if ( ret.x < 100 ) + ret.x = 100; + + CacheBestSize(ret); + return ret; +} + +// static +wxVisualAttributes +wxComboBox::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant)) +{ + return GetDefaultAttributesFromGTKWidget(gtk_combo_new, true); +} + +// ---------------------------------------------------------------------------- +// standard event handling +// ---------------------------------------------------------------------------- + +void wxComboBox::OnCut(wxCommandEvent& WXUNUSED(event)) +{ + Cut(); +} + +void wxComboBox::OnCopy(wxCommandEvent& WXUNUSED(event)) +{ + Copy(); +} + +void wxComboBox::OnPaste(wxCommandEvent& WXUNUSED(event)) +{ + Paste(); +} + +void wxComboBox::OnUndo(wxCommandEvent& WXUNUSED(event)) +{ + Undo(); +} + +void wxComboBox::OnRedo(wxCommandEvent& WXUNUSED(event)) +{ + Redo(); +} + +void wxComboBox::OnDelete(wxCommandEvent& WXUNUSED(event)) +{ + long from, to; + GetSelection(& from, & to); + if (from != -1 && to != -1) + Remove(from, to); +} + +void wxComboBox::OnSelectAll(wxCommandEvent& WXUNUSED(event)) +{ + SetSelection(-1, -1); +} + +void wxComboBox::OnUpdateCut(wxUpdateUIEvent& event) +{ + event.Enable( CanCut() ); +} + +void wxComboBox::OnUpdateCopy(wxUpdateUIEvent& event) +{ + event.Enable( CanCopy() ); +} + +void wxComboBox::OnUpdatePaste(wxUpdateUIEvent& event) +{ + event.Enable( CanPaste() ); +} + +void wxComboBox::OnUpdateUndo(wxUpdateUIEvent& event) +{ + event.Enable( CanUndo() ); +} + +void wxComboBox::OnUpdateRedo(wxUpdateUIEvent& event) +{ + event.Enable( CanRedo() ); +} + +void wxComboBox::OnUpdateDelete(wxUpdateUIEvent& event) +{ + event.Enable(HasSelection() && IsEditable()) ; +} + +void wxComboBox::OnUpdateSelectAll(wxUpdateUIEvent& event) +{ + event.Enable(GetLastPosition() > 0); +} + +#endif