X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/c801d85f158c4cba50b588807daabdcbd0ed3853..63ced01b228ba426db163b75667a9b57d092f8db:/src/gtk/choice.cpp diff --git a/src/gtk/choice.cpp b/src/gtk/choice.cpp index a7c5ff028b..759985b65b 100644 --- a/src/gtk/choice.cpp +++ b/src/gtk/choice.cpp @@ -1,198 +1,388 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: choice.cpp +// Name: src/gtk/choice.cpp // Purpose: // Author: Robert Roebling -// Created: 01/02/97 -// Id: -// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem -// Licence: wxWindows licence +// Id: $Id$ +// Copyright: (c) 1998 Robert Roebling +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// +#include "wx/wxprec.h" -#ifdef __GNUG__ -#pragma implementation "choice.h" -#endif +#if wxUSE_CHOICE || wxUSE_COMBOBOX #include "wx/choice.h" +#ifndef WX_PRECOMP + #include "wx/arrstr.h" +#endif + +#include "wx/gtk/private.h" + + +// ---------------------------------------------------------------------------- +// GTK callbacks +// ---------------------------------------------------------------------------- + +extern "C" { + +static void +gtk_choice_changed_callback( GtkWidget *WXUNUSED(widget), wxChoice *choice ) +{ + choice->SendSelectionChangedEvent(wxEVT_COMMAND_CHOICE_SELECTED); +} + +} + //----------------------------------------------------------------------------- // wxChoice //----------------------------------------------------------------------------- -void gtk_choice_clicked_callback( GtkWidget *WXUNUSED(widget), gpointer data ) +IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControlWithItems) + +void wxChoice::Init() { - wxChoice *choice = (wxChoice*)data; - wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, choice->GetId()); - event.SetInt( choice->GetSelection() ); - wxString tmp( choice->GetStringSelection() ); - event.SetString( WXSTRINGCAST(tmp) ); - event.SetEventObject(choice); - choice->ProcessEvent(event); -}; + m_strings = NULL; + m_stringCellIndex = 0; +} -//----------------------------------------------------------------------------- +bool wxChoice::Create( wxWindow *parent, wxWindowID id, + const wxPoint &pos, const wxSize &size, + const wxArrayString& choices, + long style, const wxValidator& validator, + const wxString &name ) +{ + wxCArrayString chs(choices); + + return Create( parent, id, pos, size, chs.GetCount(), chs.GetStrings(), + style, validator, name ); +} + +bool wxChoice::Create( wxWindow *parent, wxWindowID id, + const wxPoint &pos, const wxSize &size, + int n, const wxString choices[], + long style, const wxValidator& validator, + const wxString &name ) +{ + if (!PreCreation( parent, pos, size ) || + !CreateBase( parent, id, pos, size, style, validator, name )) + { + wxFAIL_MSG( wxT("wxChoice creation failed") ); + return false; + } + + if ( IsSorted() ) + { + // if our m_strings != NULL, Append() will check for it and insert + // items in the correct order + m_strings = new wxSortedArrayString; + } + + m_widget = gtk_combo_box_new_text(); + g_object_ref(m_widget); + + Append(n, choices); + + m_parent->DoAddChild( this ); + + PostCreation(size); + + g_signal_connect_after (m_widget, "changed", + G_CALLBACK (gtk_choice_changed_callback), this); + + return true; +} + +wxChoice::~wxChoice() +{ + delete m_strings; +} + +void wxChoice::SendSelectionChangedEvent(wxEventType evt_type) +{ + if (!m_hasVMT) + return; + + if (GetSelection() == -1) + return; + + wxCommandEvent event( evt_type, GetId() ); + + int n = GetSelection(); + event.SetInt( n ); + event.SetString( GetStringSelection() ); + event.SetEventObject( this ); + InitCommandEventWithItems( event, n ); + + HandleWindowEvent( event ); +} + +void wxChoice::GTKInsertComboBoxTextItem( unsigned int n, const wxString& text ) +{ + gtk_combo_box_insert_text( GTK_COMBO_BOX( m_widget ), n, wxGTK_CONV( text ) ); +} + +int wxChoice::DoInsertItems(const wxArrayStringsAdapter & items, + unsigned int pos, + void **clientData, wxClientDataType type) +{ + wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid control") ); + + wxASSERT_MSG( !IsSorted() || (pos == GetCount()), + wxT("In a sorted choice data could only be appended")); + + const int count = items.GetCount(); + + int n = wxNOT_FOUND; + + for ( int i = 0; i < count; ++i ) + { + n = pos + i; + // If sorted, use this wxSortedArrayStrings to determine + // the right insertion point + if(m_strings) + n = m_strings->Add(items[i]); + + GTKInsertComboBoxTextItem( n, items[i] ); + + m_clientData.Insert( NULL, n ); + AssignNewItemClientData(n, clientData, i, type); + } + + InvalidateBestSize(); + + return n; +} + +void wxChoice::DoSetItemClientData(unsigned int n, void* clientData) +{ + m_clientData[n] = clientData; +} + +void* wxChoice::DoGetItemClientData(unsigned int n) const +{ + return m_clientData[n]; +} + +void wxChoice::DoClear() +{ + wxCHECK_RET( m_widget != NULL, wxT("invalid control") ); -IMPLEMENT_DYNAMIC_CLASS(wxChoice,wxWindow) - -wxChoice::wxChoice(void) -{ -}; - -wxChoice::wxChoice( wxWindow *parent, const wxWindowID id, - const wxPoint &pos, const wxSize &size, - const int n, const wxString choices[], - const long style, const wxString &name ) -{ - Create( parent, id, pos, size, n, choices, style, name ); -}; - -bool wxChoice::Create( wxWindow *parent, const wxWindowID id, - const wxPoint &pos, const wxSize &size, - const int n, const wxString choices[], - const long style, const wxString &name ) -{ - m_needParent = TRUE; - - PreCreation( parent, id, pos, size, style, name ); - - m_widget = gtk_option_menu_new(); - - wxSize newSize = size; - if (newSize.x == -1) newSize.x = 80; - if (newSize.y == -1) newSize.y = 26; - SetSize( newSize.x, newSize.y ); - - GtkWidget *menu; - menu = gtk_menu_new(); - - for (int i = 0; i < n; i++) - { - GtkWidget *item; - item = gtk_menu_item_new_with_label( choices[i] ); - gtk_signal_connect( GTK_OBJECT( item ), "activate", - GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this ); - gtk_menu_append( GTK_MENU(menu), item ); - gtk_widget_show( item ); - }; - gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu ); - - PostCreation(); - - Show( TRUE ); - - return TRUE; -}; - -void wxChoice::Append( const wxString &item ) -{ - GtkWidget *menu = gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ); - GtkWidget *menu_item; - menu_item = gtk_menu_item_new_with_label( item ); - gtk_signal_connect( GTK_OBJECT( menu_item ), "activate", - GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this ); - gtk_menu_append( GTK_MENU(menu), menu_item ); - gtk_widget_show( menu_item ); -}; - -void wxChoice::Clear(void) -{ - gtk_option_menu_remove_menu( GTK_OPTION_MENU(m_widget) ); - GtkWidget *menu = gtk_menu_new(); - gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu ); -}; - -int wxChoice::FindString( const wxString &string ) const -{ - // If you read this code once and you think you undestand - // it, then you are very wrong. RR - - GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); - int count = 0; - GList *child = menu_shell->children; - while (child) - { - GtkBin *bin = GTK_BIN( child->data ); - GtkLabel *label = GTK_LABEL(bin->child); - if (!label) label = GTK_LABEL( GTK_BUTTON(m_widget)->child ); - if (string == label->label) return count; - child = child->next; - count++; - }; - return -1; -}; - -int wxChoice::GetColumns(void) const -{ - return 1; -}; - -int wxChoice::GetSelection(void) -{ - GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); - int count = 0; - GList *child = menu_shell->children; - while (child) - { - GtkBin *bin = GTK_BIN( child->data ); - if (!bin->child) return count; - child = child->next; - count++; - }; - return -1; -}; - -wxString wxChoice::GetString( const int n ) const -{ - GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); - int count = 0; - GList *child = menu_shell->children; - while (child) - { - GtkBin *bin = GTK_BIN( child->data ); - if (count == n) + DisableEvents(); + + GtkComboBox* combobox = GTK_COMBO_BOX( m_widget ); + GtkTreeModel* model = gtk_combo_box_get_model( combobox ); + gtk_list_store_clear(GTK_LIST_STORE(model)); + + m_clientData.Clear(); + + if (m_strings) + m_strings->Clear(); + + EnableEvents(); + + InvalidateBestSize(); +} + +void wxChoice::DoDeleteOneItem(unsigned int n) +{ + wxCHECK_RET( m_widget != NULL, wxT("invalid control") ); + wxCHECK_RET( IsValid(n), wxT("invalid index in wxChoice::Delete") ); + + GtkComboBox* combobox = GTK_COMBO_BOX( m_widget ); + GtkTreeModel* model = gtk_combo_box_get_model( combobox ); + GtkListStore* store = GTK_LIST_STORE(model); + GtkTreeIter iter; + gtk_tree_model_iter_nth_child( model, &iter, + NULL, (gint) n ); + gtk_list_store_remove( store, &iter ); + + m_clientData.RemoveAt( n ); + if ( m_strings ) + m_strings->RemoveAt( n ); + + InvalidateBestSize(); +} + +int wxChoice::FindString( const wxString &item, bool bCase ) const +{ + wxCHECK_MSG( m_widget != NULL, wxNOT_FOUND, wxT("invalid control") ); + + GtkComboBox* combobox = GTK_COMBO_BOX( m_widget ); + GtkTreeModel* model = gtk_combo_box_get_model( combobox ); + GtkTreeIter iter; + gtk_tree_model_get_iter_first( model, &iter ); + if (!gtk_list_store_iter_is_valid(GTK_LIST_STORE(model), &iter )) + return -1; + int count = 0; + do + { + GValue value = { 0, }; + gtk_tree_model_get_value( model, &iter, m_stringCellIndex, &value ); + wxString str = wxGTK_CONV_BACK( g_value_get_string( &value ) ); + g_value_unset( &value ); + + if (item.IsSameAs( str, bCase ) ) + return count; + + count++; + } + while ( gtk_tree_model_iter_next(model, &iter) ); + + return wxNOT_FOUND; +} + +int wxChoice::GetSelection() const +{ + return gtk_combo_box_get_active( GTK_COMBO_BOX( m_widget ) ); +} + +void wxChoice::SetString(unsigned int n, const wxString &text) +{ + wxCHECK_RET( m_widget != NULL, wxT("invalid control") ); + + GtkComboBox* combobox = GTK_COMBO_BOX( m_widget ); + wxCHECK_RET( IsValid(n), wxT("invalid index") ); + + GtkTreeModel *model = gtk_combo_box_get_model( combobox ); + GtkTreeIter iter; + if (gtk_tree_model_iter_nth_child (model, &iter, NULL, n)) + { + GValue value = { 0, }; + g_value_init( &value, G_TYPE_STRING ); + g_value_set_string( &value, wxGTK_CONV( text ) ); + gtk_list_store_set_value( GTK_LIST_STORE(model), &iter, m_stringCellIndex, &value ); + g_value_unset( &value ); + } + + InvalidateBestSize(); +} + +wxString wxChoice::GetString(unsigned int n) const +{ + wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid control") ); + + wxString str; + + GtkComboBox* combobox = GTK_COMBO_BOX( m_widget ); + GtkTreeModel *model = gtk_combo_box_get_model( combobox ); + GtkTreeIter iter; + if (gtk_tree_model_iter_nth_child (model, &iter, NULL, n)) { - GtkLabel *label = GTK_LABEL(bin->child); - if (!label) label = GTK_LABEL( GTK_BUTTON(m_widget)->child ); - return label->label; - }; - child = child->next; - count++; - }; - return ""; -}; + GValue value = { 0, }; + gtk_tree_model_get_value( model, &iter, m_stringCellIndex, &value ); + wxString tmp = wxGTK_CONV_BACK( g_value_get_string( &value ) ); + g_value_unset( &value ); + return tmp; + } + + return str; +} + +unsigned int wxChoice::GetCount() const +{ + wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid control") ); + + GtkComboBox* combobox = GTK_COMBO_BOX( m_widget ); + GtkTreeModel* model = gtk_combo_box_get_model( combobox ); + GtkTreeIter iter; + gtk_tree_model_get_iter_first( model, &iter ); + if (!gtk_list_store_iter_is_valid(GTK_LIST_STORE(model), &iter )) + return 0; + unsigned int ret = 1; + while (gtk_tree_model_iter_next( model, &iter )) + ret++; + return ret; +} + +void wxChoice::SetSelection( int n ) +{ + wxCHECK_RET( m_widget != NULL, wxT("invalid control") ); + + DisableEvents(); + + GtkComboBox* combobox = GTK_COMBO_BOX( m_widget ); + gtk_combo_box_set_active( combobox, n ); + + EnableEvents(); +} + +void wxChoice::SetColumns(int n) +{ + gtk_combo_box_set_wrap_width(GTK_COMBO_BOX(m_widget), n); +} -wxString wxChoice::GetStringSelection(void) const +int wxChoice::GetColumns() const { - GtkLabel *label = GTK_LABEL( GTK_BUTTON(m_widget)->child ); - return label->label; -}; + // gtk_combo_box_get_wrap_width() was added in gtk 2.6 + gint intval; + g_object_get(G_OBJECT(m_widget), "wrap-width", &intval, NULL); + return intval; +} + -int wxChoice::Number(void) const +void wxChoice::DisableEvents() { - GtkMenu *menu = GTK_MENU( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); - int count = 0; - GList *child = menu->children; - while (child) - { - count++; - child = child->next; - }; - return count; -}; + g_signal_handlers_block_by_func(m_widget, + (gpointer) gtk_choice_changed_callback, this); +} -void wxChoice::SetColumns( const int WXUNUSED(n) ) +void wxChoice::EnableEvents() { -}; + g_signal_handlers_unblock_by_func(m_widget, + (gpointer) gtk_choice_changed_callback, this); +} -void wxChoice::SetSelection( const int n ) + +GdkWindow *wxChoice::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const { - int tmp = n; - gtk_option_menu_set_history( GTK_OPTION_MENU(m_widget), (gint)tmp ); -}; + return m_widget->window; +} -void wxChoice::SetStringSelection( const wxString &string ) +// Notice that this method shouldn't be necessary, because GTK calculates +// properly size of the combobox but for unknown reasons it doesn't work +// correctly in wx without this. +wxSize wxChoice::DoGetBestSize() const { - int n = FindString( string ); - if (n != -1) SetSelection( n ); -}; + // strangely, this returns a width of 188 pixels from GTK+ (?) + wxSize ret( wxControl::DoGetBestSize() ); + + // we know better our horizontal extent: it depends on the longest string + // in the combobox + if ( m_widget ) + { + ret.x = GetCount() > 0 ? 0 : 60; // start with something "sensible" + int width; + unsigned int count = GetCount(); + for ( unsigned int n = 0; n < count; n++ ) + { + GetTextExtent(GetString(n), &width, NULL, NULL, NULL ); + if ( width + 40 > ret.x ) // 40 for drop down arrow and space around text + ret.x = width + 40; + } + } + + // empty combobox should have some reasonable default size too + if ((GetCount() == 0) && (ret.x < 80)) + ret.x = 80; + + CacheBestSize(ret); + return ret; +} + +void wxChoice::DoApplyWidgetStyle(GtkRcStyle *style) +{ + gtk_widget_modify_style(m_widget, style); + gtk_widget_modify_style(GTK_BIN(m_widget)->child, style); +} + + +// static +wxVisualAttributes +wxChoice::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant)) +{ + return GetDefaultAttributesFromGTKWidget(gtk_combo_box_new); +} + +#endif // wxUSE_CHOICE || wxUSE_COMBOBOX