X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/c67daf87774c71ae9f73af9969008af220e52a11..37ed592f7106e4ba483baa6fba91a9c481048bbc:/src/gtk/choice.cpp diff --git a/src/gtk/choice.cpp b/src/gtk/choice.cpp index b7d2e26e2e..8f25aa9632 100644 --- a/src/gtk/choice.cpp +++ b/src/gtk/choice.cpp @@ -1,20 +1,32 @@ ///////////////////////////////////////////////////////////////////////////// -// 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 #include "wx/choice.h" +#ifndef WX_PRECOMP + #include "wx/arrstr.h" +#endif + +// FIXME: We use GtkOptionMenu which has been deprecated since GTK+ 2.3.0 in +// favour of GtkComboBox. +// Later use GtkComboBox if GTK+ runtime version is new enough. +#include +#if defined(GTK_DISABLE_DEPRECATED) && GTK_CHECK_VERSION(2,3,0) +#undef GTK_DISABLE_DEPRECATED +#endif + +#include "wx/gtk/private.h" + //----------------------------------------------------------------------------- // data //----------------------------------------------------------------------------- @@ -22,201 +34,494 @@ extern bool g_blockEventsOnDrag; //----------------------------------------------------------------------------- -// wxChoice +// "activate" //----------------------------------------------------------------------------- +extern "C" { static void gtk_choice_clicked_callback( GtkWidget *WXUNUSED(widget), wxChoice *choice ) { - if (!choice->HasVMT()) return; - if (g_blockEventsOnDrag) return; - - wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, choice->GetId() ); - event.SetInt( choice->GetSelection() ); - wxString tmp( choice->GetStringSelection() ); - event.SetString( WXSTRINGCAST(tmp) ); - event.SetEventObject(choice); - choice->GetEventHandler()->ProcessEvent(event); + if (!choice->m_hasVMT) return; + + if (g_blockEventsOnDrag) return; + + int selection = wxNOT_FOUND; + + selection = gtk_option_menu_get_history( GTK_OPTION_MENU(choice->GetHandle()) ); + + choice->m_selection_hack = selection; + + wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, choice->GetId() ); + int n = choice->GetSelection(); + + event.SetInt( n ); + event.SetString( choice->GetStringSelection() ); + event.SetEventObject(choice); + + if ( choice->HasClientObjectData() ) + event.SetClientObject( choice->GetClientObject(n) ); + else if ( choice->HasClientUntypedData() ) + event.SetClientData( choice->GetClientData(n) ); + + choice->HandleWindowEvent(event); +} } +//----------------------------------------------------------------------------- +// wxChoice //----------------------------------------------------------------------------- -IMPLEMENT_DYNAMIC_CLASS(wxChoice,wxControl) +IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControlWithItems) -wxChoice::wxChoice(void) +wxChoice::wxChoice() { + m_strings = (wxSortedArrayString *)NULL; } 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 ) -{ - m_needParent = TRUE; - - PreCreation( parent, id, pos, size, style, name ); - - SetValidator( validator ); - - 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 understand - // it, then you are very wrong. Robert Roebling. - - 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 = (GtkLabel *) NULL; - if (bin->child) label = GTK_LABEL(bin->child); - - wxASSERT_MSG( label != NULL , "wxChoice: invalid label" ); - - if (!label) label = GTK_LABEL( GTK_BUTTON(m_widget)->child ); - if (string == label->label) return count; - child = child->next; - count++; - } - - wxFAIL_MSG( "wxChoice: string not found" ); - - 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++; - } - - wxFAIL_MSG( "wxChoice: no selection" ); - - return -1; -} - -wxString wxChoice::GetString( 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) - { - GtkLabel *label = (GtkLabel *) NULL; - if (bin->child) label = GTK_LABEL(bin->child); - - wxASSERT_MSG( label != NULL , "wxChoice: invalid label" ); - - if (!label) label = GTK_LABEL( GTK_BUTTON(m_widget)->child ); - return label->label; - } - child = child->next; - count++; - } - - wxFAIL_MSG( "wxChoice: string not found" ); - - return ""; -} - -wxString wxChoice::GetStringSelection(void) const -{ - GtkLabel *label = GTK_LABEL( GTK_BUTTON(m_widget)->child ); - - wxASSERT_MSG( label != NULL , "wxChoice: invalid label" ); - - return label->label; -} - -int wxChoice::Number(void) 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) - { - count++; - child = child->next; - } - return count; -} - -void wxChoice::SetColumns( int WXUNUSED(n) ) + 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; + } + + m_widget = gtk_option_menu_new(); + + if ( IsSorted() ) + { + // if our m_strings != NULL, Append() will check for it and insert + // items in the correct order + m_strings = new wxSortedArrayString; + } + + // If we have items, GTK will choose the first item by default + m_selection_hack = n > 0 ? 0 : wxNOT_FOUND; + + GtkWidget *menu = gtk_menu_new(); + + for (unsigned int i = 0; i < (unsigned int)n; i++) + { + GtkAddHelper(menu, i, choices[i]); + } + + gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu ); + + m_parent->DoAddChild( this ); + + PostCreation(size); + SetInitialSize(size); // need this too because this is a wxControlWithItems + + // workaround for bug in gtk_option_menu_set_history(), it causes + // gtk_widget_size_allocate() to be called with the current + // widget->allocation values, which will be zero if a proper + // size_allocate has not occured yet + m_widget->allocation.width = m_width; + m_widget->allocation.height = m_height; + + return true; +} + +wxChoice::~wxChoice() +{ + Clear(); + + delete m_strings; +} + +int wxChoice::DoInsertItems(const wxArrayStringsAdapter & items, + unsigned int pos, + void **clientData, wxClientDataType type) +{ + wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice control") ); + + const unsigned int count = items.GetCount(); + + GtkWidget *menu = gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ); + + for ( unsigned int i = 0; i < count; ++i, ++pos ) + { + int n = GtkAddHelper(menu, pos, items[i]); + if ( n == wxNOT_FOUND ) + return n; + + AssignNewItemClientData(n, clientData, i, type); + } + + // if the item to insert is at or before the selection, and the selection is valid + if (((int)pos <= m_selection_hack) && (m_selection_hack != wxNOT_FOUND)) + { + // move the selection forward + m_selection_hack += count; + } + + // We must set the selection so that it can be read back even if + // the user has not modified it since GTK+ will then select the + // first item so well return 0. + if ((count > 0) && (m_selection_hack==wxNOT_FOUND)) + m_selection_hack = 0; + + return pos - 1; +} + +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 choice") ); + + 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 ); + + m_clientData.Clear(); + + if ( m_strings ) + m_strings->Clear(); + + // begin with no selection + m_selection_hack = wxNOT_FOUND; +} + +void wxChoice::DoDeleteOneItem(unsigned int n) +{ + wxCHECK_RET( m_widget != NULL, wxT("invalid choice") ); + wxCHECK_RET( IsValid(n), _T("invalid index in wxChoice::Delete") ); + + // if the item to delete is before the selection, and the selection is valid + if (((int)n < m_selection_hack) && (m_selection_hack != wxNOT_FOUND)) + { + // move the selection back one + m_selection_hack--; + } + else if ((int)n == m_selection_hack) + { + // invalidate the selection + m_selection_hack = wxNOT_FOUND; + } + + // VZ: apparently GTK+ doesn't have a built-in function to do it (not even + // in 2.0), hence this dumb implementation -- still better than nothing + const unsigned int count = GetCount(); + + wxArrayString items; + wxArrayPtrVoid itemsData; + items.Alloc(count - 1); + itemsData.Alloc(count - 1); + for ( unsigned i = 0; i < count; i++ ) + { + if ( i != n ) + { + items.Add(GetString(i)); + itemsData.Add(m_clientData[i]); + } + } + + wxChoice::DoClear(); + + if ( count > 1 ) + { + void ** const data = &itemsData[0]; + if ( HasClientObjectData() ) + Append(items, wx_reinterpret_cast(wxClientData **, data)); + else + Append(items, data); + } + //else: the control is now empty, nothing to append +} + +int wxChoice::FindString( const wxString &string, bool bCase ) const +{ + wxCHECK_MSG( m_widget != NULL, wxNOT_FOUND, wxT("invalid choice") ); + + // If you read this code once and you think you understand + // it, then you are very wrong. Robert Roebling. + + 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 = (GtkLabel *) NULL; + if (bin->child) + label = GTK_LABEL(bin->child); + if (!label) + label = GTK_LABEL(GTK_BIN(m_widget)->child); + + wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") ); + + wxString tmp( wxGTK_CONV_BACK( gtk_label_get_text( label) ) ); + if (string.IsSameAs( tmp, bCase )) + return count; + + child = child->next; + count++; + } + + return wxNOT_FOUND; +} + +int wxChoice::GetSelection() const +{ + wxCHECK_MSG( m_widget != NULL, wxNOT_FOUND, wxT("invalid choice") ); + + return m_selection_hack; + +} + +void wxChoice::SetString(unsigned int n, const wxString& str) +{ + wxCHECK_RET( m_widget != NULL, wxT("invalid choice") ); + + GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); + unsigned int count = 0; + GList *child = menu_shell->children; + while (child) + { + GtkBin *bin = GTK_BIN( child->data ); + if (count == n) + { + GtkLabel *label = (GtkLabel *) NULL; + if (bin->child) + label = GTK_LABEL(bin->child); + if (!label) + label = GTK_LABEL(GTK_BIN(m_widget)->child); + + wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") ); + + gtk_label_set_text( label, wxGTK_CONV( str ) ); + + InvalidateBestSize(); + + return; + } + child = child->next; + count++; + } +} + +wxString wxChoice::GetString(unsigned int n) const +{ + wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid choice") ); + + GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); + unsigned int count = 0; + GList *child = menu_shell->children; + while (child) + { + GtkBin *bin = GTK_BIN( child->data ); + if (count == n) + { + GtkLabel *label = (GtkLabel *) NULL; + if (bin->child) + label = GTK_LABEL(bin->child); + if (!label) + label = GTK_LABEL(GTK_BIN(m_widget)->child); + + wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") ); + + return wxString( wxGTK_CONV_BACK( gtk_label_get_text( label) ) ); + } + child = child->next; + count++; + } + + wxFAIL_MSG( wxT("wxChoice: invalid index in GetString()") ); + + return wxEmptyString; +} + +unsigned int wxChoice::GetCount() const +{ + wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid choice") ); + + GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); + unsigned int count = 0; + GList *child = menu_shell->children; + while (child) + { + count++; + child = child->next; + } + return count; } void wxChoice::SetSelection( int n ) { - int tmp = n; - gtk_option_menu_set_history( GTK_OPTION_MENU(m_widget), (gint)tmp ); - - gtk_choice_clicked_callback( (GtkWidget *) NULL, this ); + wxCHECK_RET( m_widget != NULL, wxT("invalid choice") ); + + int tmp = n; + gtk_option_menu_set_history( GTK_OPTION_MENU(m_widget), (gint)tmp ); + + // set the local selection variable manually + if ((n >= 0) && ((unsigned int)n < GetCount())) + { + // a valid selection has been made + m_selection_hack = n; + } + else if ((n == wxNOT_FOUND) || (GetCount() == 0)) + { + // invalidates the selection if there are no items + // or if it is specifically set to wxNOT_FOUND + m_selection_hack = wxNOT_FOUND; + } + else + { + // this selects the first item by default if the selection is out of bounds + m_selection_hack = 0; + } +} + +void wxChoice::DoApplyWidgetStyle(GtkRcStyle *style) +{ + GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); + + gtk_widget_modify_style( m_widget, style ); + gtk_widget_modify_style( GTK_WIDGET( menu_shell ), style ); + + GList *child = menu_shell->children; + while (child) + { + gtk_widget_modify_style( GTK_WIDGET( child->data ), style ); + + GtkBin *bin = GTK_BIN( child->data ); + GtkWidget *label = (GtkWidget *) NULL; + if (bin->child) + label = bin->child; + if (!label) + label = GTK_BIN(m_widget)->child; + + gtk_widget_modify_style( label, style ); + + child = child->next; + } +} + +int wxChoice::GtkAddHelper(GtkWidget *menu, unsigned int pos, const wxString& item) +{ + wxCHECK_MSG(pos<=m_clientData.GetCount(), -1, wxT("invalid index")); + + GtkWidget *menu_item = gtk_menu_item_new_with_label( wxGTK_CONV( item ) ); + + if ( m_strings ) + { + // sorted control, need to insert at the correct index + pos = m_strings->Add(item); + } + + // don't call wxChoice::GetCount() from here because it doesn't work + // if we're called from ctor (and GtkMenuShell is still NULL) + if (pos == m_clientData.GetCount()) + gtk_menu_shell_append( GTK_MENU_SHELL(menu), menu_item ); + else + gtk_menu_shell_insert( GTK_MENU_SHELL(menu), menu_item, pos ); + + m_clientData.Insert( NULL, pos ); + + if (GTK_WIDGET_REALIZED(m_widget)) + { + gtk_widget_realize( menu_item ); + gtk_widget_realize( GTK_BIN(menu_item)->child ); + + ApplyWidgetStyle(); + } + + // The best size of a wxChoice should probably + // be changed everytime the control has been + // changed, but at least after adding an item + // it has to change. Adapted from Matt Ownby. + InvalidateBestSize(); + + g_signal_connect_after (menu_item, "activate", + G_CALLBACK (gtk_choice_clicked_callback), + this); + + gtk_widget_show( menu_item ); + + // return the index of the item in the control + return pos; +} + +wxSize wxChoice::DoGetBestSize() const +{ + wxSize ret( wxControl::DoGetBestSize() ); + + // we know better our horizontal extent: it depends on the longest string + // we have + ret.x = 0; + 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; + } + + // add extra for the choice "=" button + + // VZ: I don't know how to get the right value, it seems to be in + // GtkOptionMenuProps struct from gtkoptionmenu.c but we can't get + // to it - maybe we can use gtk_option_menu_size_request() for this + // somehow? + // + // This default value works only for the default GTK+ theme (i.e. + // no theme at all) (FIXME) + static const int widthChoiceIndicator = 35; + ret.x += widthChoiceIndicator; + } + + // but not less than the minimal width + if ( ret.x < 80 ) + ret.x = 80; + + // If this request_size is called with no entries then + // the returned height is wrong. Give it a reasonable + // default value. + if (ret.y <= 18) + ret.y = 8 + GetCharHeight(); + + CacheBestSize(ret); + return ret; +} + +GdkWindow *wxChoice::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const +{ + return GTK_BUTTON(m_widget)->event_window; } -void wxChoice::SetStringSelection( const wxString &string ) +// static +wxVisualAttributes +wxChoice::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant)) { - int n = FindString( string ); - if (n != -1) SetSelection( n ); + return GetDefaultAttributesFromGTKWidget(gtk_option_menu_new); } + +#endif // wxUSE_CHOICE