X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f6bc4102d7ba31a8b8680d980aaac34bfdea5e52..ff58644a54af11b74b8e9b33a00de8496c531566:/src/gtk/choice.cpp diff --git a/src/gtk/choice.cpp b/src/gtk/choice.cpp index 5874c0fd6a..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: $Id$ @@ -7,26 +7,25 @@ // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// - -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) -#pragma implementation "choice.h" -#endif - -#include "wx/defs.h" +#include "wx/wxprec.h" #if wxUSE_CHOICE #include "wx/choice.h" -#include "wx/arrstr.h" -#include "wx/gtk/private.h" +#ifndef WX_PRECOMP + #include "wx/arrstr.h" +#endif -//----------------------------------------------------------------------------- -// idle system -//----------------------------------------------------------------------------- +// 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 -extern void wxapp_install_idle_handler(); -extern bool g_isIdle; +#include "wx/gtk/private.h" //----------------------------------------------------------------------------- // data @@ -38,15 +37,19 @@ extern bool g_blockEventsOnDrag; // "activate" //----------------------------------------------------------------------------- +extern "C" { static void gtk_choice_clicked_callback( GtkWidget *WXUNUSED(widget), wxChoice *choice ) { - if (g_isIdle) - wxapp_install_idle_handler(); - 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(); @@ -59,49 +62,60 @@ static void gtk_choice_clicked_callback( GtkWidget *WXUNUSED(widget), wxChoice * else if ( choice->HasClientUntypedData() ) event.SetClientData( choice->GetClientData(n) ); - choice->GetEventHandler()->ProcessEvent(event); + 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, + 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 ) { - m_needParent = TRUE; -#if (GTK_MINOR_VERSION > 0) - m_acceptsFocus = TRUE; -#endif - if (!PreCreation( parent, pos, size ) || !CreateBase( parent, id, pos, size, style, validator, name )) { wxFAIL_MSG( wxT("wxChoice creation failed") ); - return FALSE; + return false; } m_widget = gtk_option_menu_new(); - if ( style & wxCB_SORT ) + if ( IsSorted() ) { - // if our m_strings != NULL, DoAppend() will check for it and insert + // 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 (int i = 0; i < n; i++) + for (unsigned int i = 0; i < (unsigned int)n; i++) { GtkAddHelper(menu, i, choices[i]); } @@ -110,18 +124,17 @@ bool wxChoice::Create( wxWindow *parent, wxWindowID id, m_parent->DoAddChild( this ); - PostCreation(); - - SetFont( parent->GetFont() ); - - SetBestSize(size); + PostCreation(size); + SetInitialSize(size); // need this too because this is a wxControlWithItems - SetBackgroundColour( parent->GetBackgroundColour() ); - SetForegroundColour( parent->GetForegroundColour() ); + // 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; - Show( TRUE ); - - return TRUE; + return true; } wxChoice::~wxChoice() @@ -131,72 +144,52 @@ wxChoice::~wxChoice() delete m_strings; } -int wxChoice::DoAppend( const wxString &item ) -{ - wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice control") ); - - GtkWidget *menu = gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ); - - return GtkAddHelper(menu, GetCount(), item); -} - -int wxChoice::DoInsert( const wxString &item, int pos ) +int wxChoice::DoInsertItems(const wxArrayStringsAdapter & items, + unsigned int pos, + void **clientData, wxClientDataType type) { wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice control") ); - wxCHECK_MSG( (pos>=0) && (pos<=GetCount()), -1, wxT("invalid index")); - if (pos == GetCount()) - return DoAppend(item); + const unsigned int count = items.GetCount(); GtkWidget *menu = gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ); - return GtkAddHelper(menu, pos, item); -} - -void wxChoice::DoSetItemClientData( int n, void* clientData ) -{ - wxCHECK_RET( m_widget != NULL, wxT("invalid choice control") ); - - wxList::compatibility_iterator node = m_clientList.Item( n ); - wxCHECK_RET( node, wxT("invalid index in wxChoice::DoSetItemClientData") ); + for ( unsigned int i = 0; i < count; ++i, ++pos ) + { + int n = GtkAddHelper(menu, pos, items[i]); + if ( n == wxNOT_FOUND ) + return n; - node->SetData( (wxObject*) clientData ); -} + AssignNewItemClientData(n, clientData, i, type); + } -void* wxChoice::DoGetItemClientData( int n ) const -{ - wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid choice control") ); + // 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; + } - wxList::compatibility_iterator node = m_clientList.Item( n ); - wxCHECK_MSG( node, NULL, wxT("invalid index in wxChoice::DoGetItemClientData") ); + // 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 node->GetData(); + return pos - 1; } -void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData ) +void wxChoice::DoSetItemClientData(unsigned int n, void* clientData) { - wxCHECK_RET( m_widget != NULL, wxT("invalid choice control") ); - - wxList::compatibility_iterator node = m_clientList.Item( n ); - wxCHECK_RET( node, wxT("invalid index in wxChoice::DoSetItemClientObject") ); - - // wxItemContainer already deletes data for us - - node->SetData( (wxObject*) clientData ); + m_clientData[n] = clientData; } -wxClientData* wxChoice::DoGetItemClientObject( int n ) const +void* wxChoice::DoGetItemClientData(unsigned int n) const { - wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, wxT("invalid choice control") ); - - wxList::compatibility_iterator node = m_clientList.Item( n ); - wxCHECK_MSG( node, (wxClientData *)NULL, - wxT("invalid index in wxChoice::DoGetItemClientObject") ); - - return (wxClientData*) node->GetData(); + return m_clientData[n]; } -void wxChoice::Clear() +void wxChoice::DoClear() { wxCHECK_RET( m_widget != NULL, wxT("invalid choice") ); @@ -204,90 +197,65 @@ void wxChoice::Clear() GtkWidget *menu = gtk_menu_new(); gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu ); - if ( HasClientObjectData() ) - { - // destroy the data (due to Robert's idea of using wxList - // and not wxList we can't just say - // m_clientList.DeleteContents(TRUE) - this would crash! - wxList::compatibility_iterator node = m_clientList.GetFirst(); - while ( node ) - { - delete (wxClientData *)node->GetData(); - node = node->GetNext(); - } - } - m_clientList.Clear(); + m_clientData.Clear(); if ( m_strings ) m_strings->Clear(); + + // begin with no selection + m_selection_hack = wxNOT_FOUND; } -void wxChoice::Delete( int n ) +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 - int i, - count = GetCount(); - - wxCHECK_RET( n >= 0 && n < count, _T("invalid index in wxChoice::Delete") ); - - const bool hasClientData = m_clientDataItemsType != wxClientData_None; - const bool hasObjectData = m_clientDataItemsType == wxClientData_Object; - - wxList::compatibility_iterator node = m_clientList.GetFirst(); + const unsigned int count = GetCount(); wxArrayString items; wxArrayPtrVoid itemsData; - items.Alloc(count); - for ( i = 0; i < count; i++ ) + items.Alloc(count - 1); + itemsData.Alloc(count - 1); + for ( unsigned i = 0; i < count; i++ ) { if ( i != n ) { items.Add(GetString(i)); - if ( hasClientData ) - { - // also save the client data - itemsData.Add(node->GetData()); - } - } - else // need to delete the client object too - { - if ( hasObjectData ) - { - delete (wxClientData *)node->GetData(); - } - } - - if ( hasClientData ) - { - node = node->GetNext(); + itemsData.Add(m_clientData[i]); } } - if ( hasObjectData ) - { - // prevent Clear() from destroying all client data - m_clientDataItemsType = wxClientData_None; - } - - Clear(); + wxChoice::DoClear(); - for ( i = 0; i < count - 1; i++ ) + if ( count > 1 ) { - Append(items[i]); - - if ( hasObjectData ) - SetClientObject(i, (wxClientData *)itemsData[i]); - else if ( hasClientData ) - SetClientData(i, itemsData[i]); + 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, wxT("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. @@ -302,63 +270,66 @@ int wxChoice::FindString( const wxString &string ) const if (bin->child) label = GTK_LABEL(bin->child); if (!label) - label = GTK_LABEL( BUTTON_CHILD(m_widget) ); + label = GTK_LABEL(GTK_BIN(m_widget)->child); wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") ); -#ifdef __WXGTK20__ wxString tmp( wxGTK_CONV_BACK( gtk_label_get_text( label) ) ); -#else - wxString tmp( label->label ); -#endif - if (string == tmp) + if (string.IsSameAs( tmp, bCase )) return count; child = child->next; count++; } - return -1; + return wxNOT_FOUND; } int wxChoice::GetSelection() const { - wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice") ); + wxCHECK_MSG( m_widget != NULL, wxNOT_FOUND, wxT("invalid choice") ); -#ifdef __WXGTK20__ + return m_selection_hack; - return gtk_option_menu_get_history( GTK_OPTION_MENU(m_widget) ); +} -#else - GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); - int count = 0; +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 (!bin->child) return count; - child = child->next; - 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); - return -1; -#endif -} + wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") ); -void wxChoice::SetString( int WXUNUSED(n), const wxString& WXUNUSED(string) ) -{ - wxCHECK_RET( m_widget != NULL, wxT("invalid choice") ); + gtk_label_set_text( label, wxGTK_CONV( str ) ); + + InvalidateBestSize(); - wxFAIL_MSG(wxT("not implemented")); + return; + } + child = child->next; + count++; + } } -wxString wxChoice::GetString( int n ) const +wxString wxChoice::GetString(unsigned int n) const { - wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("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) { @@ -369,15 +340,11 @@ wxString wxChoice::GetString( int n ) const if (bin->child) label = GTK_LABEL(bin->child); if (!label) - label = GTK_LABEL( BUTTON_CHILD(m_widget) ); + label = GTK_LABEL(GTK_BIN(m_widget)->child); wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") ); -#ifdef __WXGTK20__ return wxString( wxGTK_CONV_BACK( gtk_label_get_text( label) ) ); -#else - return wxString( label->label ); -#endif } child = child->next; count++; @@ -385,15 +352,15 @@ wxString wxChoice::GetString( int n ) const wxFAIL_MSG( wxT("wxChoice: invalid index in GetString()") ); - return wxT(""); + return wxEmptyString; } -int wxChoice::GetCount() const +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) ) ); - int count = 0; + unsigned int count = 0; GList *child = menu_shell->children; while (child) { @@ -409,94 +376,94 @@ void wxChoice::SetSelection( int n ) 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::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 = BUTTON_CHILD(m_widget); + 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, int pos, const wxString& item) +int wxChoice::GtkAddHelper(GtkWidget *menu, unsigned int pos, const wxString& item) { - wxCHECK_MSG((pos>=0) && (pos<=(int)m_clientList.GetCount()), -1, wxT("invalid index")); + wxCHECK_MSG(pos<=m_clientData.GetCount(), -1, wxT("invalid index")); GtkWidget *menu_item = gtk_menu_item_new_with_label( wxGTK_CONV( item ) ); - size_t index; if ( m_strings ) { // sorted control, need to insert at the correct index - index = m_strings->Add(item); - - gtk_menu_insert( GTK_MENU(menu), menu_item, index ); - - if ( index ) - { - m_clientList.Insert( m_clientList.Item(index - 1), - (wxObject*) NULL ); - } - else - { - m_clientList.Insert( (wxObject*) NULL ); - } + 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 - { - // don't call wxChoice::GetCount() from here because it doesn't work - // if we're called from ctor (and GtkMenuShell is still NULL) + gtk_menu_shell_insert( GTK_MENU_SHELL(menu), menu_item, pos ); - // normal control, just append - if (pos == (int)m_clientList.GetCount()) - { - gtk_menu_append( GTK_MENU(menu), menu_item ); - m_clientList.Append( (wxObject*) NULL ); - index = m_clientList.GetCount() - 1; - } - else - { - gtk_menu_insert( GTK_MENU(menu), menu_item, pos ); - m_clientList.Insert( pos, (wxObject*) NULL ); - index = 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 ); - if (m_widgetStyle) ApplyWidgetStyle(); + ApplyWidgetStyle(); } - gtk_signal_connect( GTK_OBJECT( menu_item ), "activate", - GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this ); + // 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 index; + return pos; } wxSize wxChoice::DoGetBestSize() const @@ -509,10 +476,10 @@ wxSize wxChoice::DoGetBestSize() const if ( m_widget ) { int width; - size_t count = GetCount(); - for ( size_t n = 0; n < count; n++ ) + unsigned int count = GetCount(); + for ( unsigned int n = 0; n < count; n++ ) { - GetTextExtent( GetString(n), &width, NULL, NULL, NULL, &m_font ); + GetTextExtent( GetString(n), &width, NULL, NULL, NULL ); if ( width > ret.x ) ret.x = width; } @@ -534,20 +501,27 @@ wxSize wxChoice::DoGetBestSize() const if ( ret.x < 80 ) ret.x = 80; - ret.y = 16 + GetCharHeight(); + // 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; } -bool wxChoice::IsOwnGtkWindow( GdkWindow *window ) +GdkWindow *wxChoice::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const { -#ifdef __WXGTK20__ return GTK_BUTTON(m_widget)->event_window; -#else - return (window == m_widget->window); -#endif } +// static +wxVisualAttributes +wxChoice::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant)) +{ + return GetDefaultAttributesFromGTKWidget(gtk_option_menu_new); +} -#endif // wxUSE_CHOICE +#endif // wxUSE_CHOICE