X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/034be8882cc091cf8ca1ccdf307190ac73adfe54..ff58644a54af11b74b8e9b33a00de8496c531566:/src/gtk/choice.cpp diff --git a/src/gtk/choice.cpp b/src/gtk/choice.cpp index 248123389a..8f25aa9632 100644 --- a/src/gtk/choice.cpp +++ b/src/gtk/choice.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: choice.cpp +// Name: src/gtk/choice.cpp // Purpose: // Author: Robert Roebling // Id: $Id$ @@ -7,15 +7,25 @@ // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// +#include "wx/wxprec.h" -#ifdef __GNUG__ -#pragma implementation "choice.h" -#endif +#if wxUSE_CHOICE #include "wx/choice.h" -#include "gdk/gdk.h" -#include "gtk/gtk.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 @@ -27,209 +37,225 @@ extern bool g_blockEventsOnDrag; // "activate" //----------------------------------------------------------------------------- +extern "C" { static void gtk_choice_clicked_callback( GtkWidget *WXUNUSED(widget), wxChoice *choice ) { - if (!choice->HasVMT()) - return; + 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(); - if (g_blockEventsOnDrag) - return; + event.SetInt( n ); + event.SetString( choice->GetStringSelection() ); + event.SetEventObject(choice); - wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, choice->GetId() ); - event.SetInt( choice->GetSelection() ); - event.SetString( choice->GetStringSelection() ); - event.SetEventObject(choice); - choice->GetEventHandler()->ProcessEvent(event); + 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() { + 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 ) + const wxArrayString& choices, + long style, const wxValidator& validator, + const wxString &name ) { - m_needParent = TRUE; -#if (GTK_MINOR_VERSION > 0) - m_acceptsFocus = TRUE; -#endif + wxCArrayString chs(choices); - PreCreation( parent, id, pos, size, style, name ); + return Create( parent, id, pos, size, chs.GetCount(), chs.GetStrings(), + style, validator, name ); +} - SetValidator( validator ); +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(); - wxSize newSize(size); - if (newSize.x == -1) - newSize.x = 80; - if (newSize.y == -1) - newSize.y = 26; - SetSize( newSize.x, newSize.y ); - - GtkWidget *menu = gtk_menu_new(); - - for (int i = 0; i < n; i++) + if ( IsSorted() ) { - m_clientDataList.Append( (wxObject*) NULL ); - m_clientObjectList.Append( (wxObject*) NULL ); - - GtkWidget *item = gtk_menu_item_new_with_label( choices[i] ); - gtk_menu_append( GTK_MENU(menu), item ); + // if our m_strings != NULL, Append() will check for it and insert + // items in the correct order + m_strings = new wxSortedArrayString; + } - gtk_widget_realize( item ); - gtk_widget_realize( GTK_BIN(item)->child ); + // If we have items, GTK will choose the first item by default + m_selection_hack = n > 0 ? 0 : wxNOT_FOUND; - gtk_widget_show( item ); + GtkWidget *menu = gtk_menu_new(); - gtk_signal_connect( GTK_OBJECT( item ), "activate", - GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this ); + 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->AddChild( this ); - - (m_parent->m_insertCallback)( m_parent, this ); + gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu ); - PostCreation(); + m_parent->DoAddChild( this ); - SetBackgroundColour( parent->GetBackgroundColour() ); - SetForegroundColour( parent->GetForegroundColour() ); - SetFont( parent->GetFont() ); + PostCreation(size); + SetInitialSize(size); // need this too because this is a wxControlWithItems - Show( TRUE ); + // 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; + return true; } wxChoice::~wxChoice() { Clear(); + + delete m_strings; } -void wxChoice::AppendCommon( const wxString &item ) +int wxChoice::DoInsertItems(const wxArrayStringsAdapter & items, + unsigned int pos, + void **clientData, wxClientDataType type) { - wxCHECK_RET( m_widget != NULL, "invalid choice" ); - - GtkWidget *menu = gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ); - GtkWidget *menu_item = gtk_menu_item_new_with_label( item ); - - gtk_menu_append( GTK_MENU(menu), menu_item ); + wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice control") ); - gtk_widget_realize( menu_item ); - gtk_widget_realize( GTK_BIN(menu_item)->child ); + const unsigned int count = items.GetCount(); - if (m_widgetStyle) ApplyWidgetStyle(); + GtkWidget *menu = gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ); - gtk_signal_connect( GTK_OBJECT( menu_item ), "activate", - GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this ); + for ( unsigned int i = 0; i < count; ++i, ++pos ) + { + int n = GtkAddHelper(menu, pos, items[i]); + if ( n == wxNOT_FOUND ) + return n; - gtk_widget_show( menu_item ); -} + AssignNewItemClientData(n, clientData, i, type); + } -void wxChoice::Append( const wxString &item ) -{ - m_clientDataList.Append( (wxObject*) NULL ); - m_clientObjectList.Append( (wxObject*) NULL ); + // 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; + } - AppendCommon( item ); -} + // 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; -void wxChoice::Append( const wxString &item, void *clientData ) -{ - m_clientDataList.Append( (wxObject*) clientData ); - m_clientObjectList.Append( (wxObject*) NULL ); - - AppendCommon( item ); + return pos - 1; } -void wxChoice::Append( const wxString &item, wxClientData *clientData ) +void wxChoice::DoSetItemClientData(unsigned int n, void* clientData) { - m_clientObjectList.Append( (wxObject*) clientData ); - m_clientDataList.Append( (wxObject*) NULL ); - - AppendCommon( item ); + m_clientData[n] = clientData; } -void wxChoice::SetClientData( int n, void* clientData ) +void* wxChoice::DoGetItemClientData(unsigned int n) const { - wxCHECK_RET( m_widget != NULL, "invalid combobox" ); - - wxNode *node = m_clientDataList.Nth( n ); - if (!node) return; - - node->SetData( (wxObject*) clientData ); + return m_clientData[n]; } -void* wxChoice::GetClientData( int n ) +void wxChoice::DoClear() { - wxCHECK_MSG( m_widget != NULL, NULL, "invalid combobox" ); - - wxNode *node = m_clientDataList.Nth( n ); - if (!node) return NULL; + wxCHECK_RET( m_widget != NULL, wxT("invalid choice") ); - return node->Data(); -} - -void wxChoice::SetClientObject( int n, wxClientData* clientData ) -{ - wxCHECK_RET( m_widget != NULL, "invalid combobox" ); + 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 ); - wxNode *node = m_clientObjectList.Nth( n ); - if (!node) return; + m_clientData.Clear(); - wxClientData *cd = (wxClientData*) node->Data(); - if (cd) delete cd; + if ( m_strings ) + m_strings->Clear(); - node->SetData( (wxObject*) clientData ); + // begin with no selection + m_selection_hack = wxNOT_FOUND; } -wxClientData* wxChoice::GetClientObject( int n ) +void wxChoice::DoDeleteOneItem(unsigned int n) { - wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, "invalid combobox" ); - - wxNode *node = m_clientObjectList.Nth( n ); - if (!node) return (wxClientData*) NULL; - - return (wxClientData*) node->Data(); -} + wxCHECK_RET( m_widget != NULL, wxT("invalid choice") ); + wxCHECK_RET( IsValid(n), _T("invalid index in wxChoice::Delete") ); -void wxChoice::Clear() -{ - wxCHECK_RET( m_widget != NULL, "invalid choice" ); + // 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; + } - 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 ); + // 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(); - wxNode *node = m_clientObjectList.First(); - while (node) + wxArrayString items; + wxArrayPtrVoid itemsData; + items.Alloc(count - 1); + itemsData.Alloc(count - 1); + for ( unsigned i = 0; i < count; i++ ) { - wxClientData *cd = (wxClientData*)node->Data(); - if (cd) delete cd; - node = node->Next(); + if ( i != n ) + { + items.Add(GetString(i)); + itemsData.Add(m_clientData[i]); + } } - m_clientObjectList.Clear(); - m_clientDataList.Clear(); -} + wxChoice::DoClear(); -void wxChoice::Delete( int WXUNUSED(n) ) -{ - wxFAIL_MSG( "wxChoice:Delete not implemented" ); + 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 ) const +int wxChoice::FindString( const wxString &string, bool bCase ) const { - wxCHECK_MSG( m_widget != NULL, -1, "invalid choice" ); + 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. @@ -241,52 +267,69 @@ int wxChoice::FindString( const wxString &string ) const { GtkBin *bin = GTK_BIN( child->data ); GtkLabel *label = (GtkLabel *) NULL; - if (bin->child) label = GTK_LABEL(bin->child); - if (!label) label = GTK_LABEL( GTK_BUTTON(m_widget)->child ); + if (bin->child) + label = GTK_LABEL(bin->child); + if (!label) + label = GTK_LABEL(GTK_BIN(m_widget)->child); - wxASSERT_MSG( label != NULL , "wxChoice: invalid label" ); + wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") ); - if (string == label->label) - return count; + wxString tmp( wxGTK_CONV_BACK( gtk_label_get_text( label) ) ); + if (string.IsSameAs( tmp, bCase )) + return count; - child = child->next; - count++; + child = child->next; + count++; } - return -1; + return wxNOT_FOUND; } -int wxChoice::GetColumns() const +int wxChoice::GetSelection() const { - return 1; + wxCHECK_MSG( m_widget != NULL, wxNOT_FOUND, wxT("invalid choice") ); + + return m_selection_hack; + } -int wxChoice::GetSelection() +void wxChoice::SetString(unsigned int n, const wxString& str) { - wxCHECK_MSG( m_widget != NULL, -1, "invalid choice" ); + wxCHECK_RET( m_widget != NULL, wxT("invalid choice") ); GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); - int count = 0; + unsigned int count = 0; GList *child = menu_shell->children; while (child) { GtkBin *bin = GTK_BIN( child->data ); - if (!bin->child) return count; + 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++; } - - wxFAIL_MSG( "wxChoice: no selection" ); - - return -1; } -wxString wxChoice::GetString( int n ) const +wxString wxChoice::GetString(unsigned int n) const { - wxCHECK_MSG( m_widget != NULL, "", "invalid choice" ); + 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) ) ); - int count = 0; + unsigned int count = 0; GList *child = menu_shell->children; while (child) { @@ -294,39 +337,30 @@ wxString wxChoice::GetString( int n ) const if (count == n) { GtkLabel *label = (GtkLabel *) NULL; - if (bin->child) label = GTK_LABEL(bin->child); - if (!label) label = GTK_LABEL( GTK_BUTTON(m_widget)->child ); + if (bin->child) + label = GTK_LABEL(bin->child); + if (!label) + label = GTK_LABEL(GTK_BIN(m_widget)->child); - wxASSERT_MSG( label != NULL , "wxChoice: invalid label" ); + wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") ); - return label->label; + return wxString( wxGTK_CONV_BACK( gtk_label_get_text( label) ) ); } child = child->next; count++; } - wxFAIL_MSG( "wxChoice: invalid index in GetString()" ); + wxFAIL_MSG( wxT("wxChoice: invalid index in GetString()") ); - return ""; + return wxEmptyString; } -wxString wxChoice::GetStringSelection() const +unsigned int wxChoice::GetCount() const { - wxCHECK_MSG( m_widget != NULL, "", "invalid choice" ); - - GtkLabel *label = GTK_LABEL( GTK_BUTTON(m_widget)->child ); - - wxASSERT_MSG( label != NULL , "wxChoice: invalid label" ); - - return label->label; -} - -int wxChoice::Number() const -{ - wxCHECK_MSG( m_widget != NULL, 0, "invalid choice" ); + 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) ) ); - int count = 0; + unsigned int count = 0; GList *child = menu_shell->children; while (child) { @@ -336,50 +370,158 @@ int wxChoice::Number() const return count; } -void wxChoice::SetColumns( int WXUNUSED(n) ) -{ -} - void wxChoice::SetSelection( int n ) { - wxCHECK_RET( m_widget != NULL, "invalid choice" ); + wxCHECK_RET( m_widget != NULL, wxT("invalid choice") ); int tmp = n; gtk_option_menu_set_history( GTK_OPTION_MENU(m_widget), (gint)tmp ); - gtk_choice_clicked_callback( (GtkWidget *) NULL, this ); -} - -void wxChoice::SetStringSelection( const wxString &string ) -{ - wxCHECK_RET( m_widget != NULL, "invalid choice" ); - - int n = FindString( string ); - if (n != -1) SetSelection( n ); + // 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::ApplyWidgetStyle() +void wxChoice::DoApplyWidgetStyle(GtkRcStyle *style) { - SetWidgetStyle(); - GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); - gtk_widget_set_style( m_widget, m_widgetStyle ); - gtk_widget_set_style( GTK_WIDGET( menu_shell ), m_widgetStyle ); + 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_set_style( GTK_WIDGET( child->data ), m_widgetStyle ); + 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_BUTTON(m_widget)->child; + if (bin->child) + label = bin->child; + if (!label) + label = GTK_BIN(m_widget)->child; - gtk_widget_set_style( label, m_widgetStyle ); + 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; +} + +// static +wxVisualAttributes +wxChoice::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant)) +{ + return GetDefaultAttributesFromGTKWidget(gtk_option_menu_new); +} + + +#endif // wxUSE_CHOICE