X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a7ac4461ab64212a536a8dabffc2ad65ef573a5f..63ced01b228ba426db163b75667a9b57d092f8db:/src/gtk/choice.cpp

diff --git a/src/gtk/choice.cpp b/src/gtk/choice.cpp
index 9bf71e04f5..759985b65b 100644
--- a/src/gtk/choice.cpp
+++ b/src/gtk/choice.cpp
@@ -1,378 +1,388 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        choice.cpp
+// Name:        src/gtk/choice.cpp
 // Purpose:
 // Author:      Robert Roebling
 // Id:          $Id$
 // Copyright:   (c) 1998 Robert Roebling
-// Licence:   	wxWindows licence
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
+#include "wx/wxprec.h"
 
-#ifdef __GNUG__
-#pragma implementation "choice.h"
-#endif
+#if wxUSE_CHOICE || wxUSE_COMBOBOX
 
 #include "wx/choice.h"
 
-#include "gdk/gdk.h"
-#include "gtk/gtk.h"
+#ifndef WX_PRECOMP
+    #include "wx/arrstr.h"
+#endif
 
-//-----------------------------------------------------------------------------
-// data
-//-----------------------------------------------------------------------------
+#include "wx/gtk/private.h"
 
-extern bool   g_blockEventsOnDrag;
 
-//-----------------------------------------------------------------------------
-// "activate"
-//-----------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
+// GTK callbacks
+// ----------------------------------------------------------------------------
 
-static void gtk_choice_clicked_callback( GtkWidget *WXUNUSED(widget), wxChoice *choice )
+extern "C" {
+
+static void
+gtk_choice_changed_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);
+    choice->SendSelectionChangedEvent(wxEVT_COMMAND_CHOICE_SELECTED);
+}
+
 }
 
 //-----------------------------------------------------------------------------
 // wxChoice
 //-----------------------------------------------------------------------------
 
-IMPLEMENT_DYNAMIC_CLASS(wxChoice,wxControl)
+IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControlWithItems)
+
+void wxChoice::Init()
+{
+    m_strings = NULL;
+    m_stringCellIndex = 0;
+}
 
-wxChoice::wxChoice()
+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 )
+                       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 = gtk_menu_new();
-  
-    for (int i = 0; i < n; i++)
+    if (!PreCreation( parent, pos, size ) ||
+        !CreateBase( parent, id, pos, size, style, validator, name ))
+    {
+        wxFAIL_MSG( wxT("wxChoice creation failed") );
+        return false;
+    }
+
+    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 );
-    
-        gtk_widget_realize( item );
-        gtk_widget_realize( GTK_BIN(item)->child );
-    
-        gtk_widget_show( item );
-    
-        gtk_signal_connect( GTK_OBJECT( item ), "activate", 
-          GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this );
+        // if our m_strings != NULL, Append() will check for it and insert
+        // items in the correct order
+        m_strings = new wxSortedArrayString;
     }
-    gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu );
-  
-    m_parent->AddChild( this );
-
-    (m_parent->m_insertCallback)( m_parent, this );
-  
-    PostCreation();
-  
-    SetBackgroundColour( parent->GetBackgroundColour() );
-    SetForegroundColour( parent->GetForegroundColour() );
-    SetFont( parent->GetFont() );
-
-    Show( TRUE );
-    
-    return TRUE;
+
+    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()
 {
-    Clear();
+    delete m_strings;
 }
 
-void wxChoice::AppendCommon( const wxString &item )
+void wxChoice::SendSelectionChangedEvent(wxEventType evt_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 );
-  
-    gtk_widget_realize( menu_item );
-    gtk_widget_realize( GTK_BIN(menu_item)->child );
-  
-    if (m_widgetStyle) ApplyWidgetStyle();
-  
-    gtk_signal_connect( GTK_OBJECT( menu_item ), "activate", 
-      GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this );
-    
-    gtk_widget_show( menu_item );
-}
+    if (!m_hasVMT)
+        return;
 
-void wxChoice::Append( const wxString &item )
-{
-    m_clientDataList.Append( (wxObject*) NULL );
-    m_clientObjectList.Append( (wxObject*) NULL );
-  
-    AppendCommon( item );
-}
+    if (GetSelection() == -1)
+        return;
 
-void wxChoice::Append( const wxString &item, void *clientData )
-{
-    m_clientDataList.Append( (wxObject*) clientData );
-    m_clientObjectList.Append( (wxObject*) NULL );
-  
-    AppendCommon( item );
-}
+    wxCommandEvent event( evt_type, GetId() );
 
-void wxChoice::Append( const wxString &item, wxClientData *clientData )
-{
-    m_clientObjectList.Append( (wxObject*) clientData );
-    m_clientDataList.Append( (wxObject*) NULL );
-  
-    AppendCommon( item );
+    int n = GetSelection();
+    event.SetInt( n );
+    event.SetString( GetStringSelection() );
+    event.SetEventObject( this );
+    InitCommandEventWithItems( event, n );
+
+    HandleWindowEvent( event );
 }
 
-void wxChoice::SetClientData( int n, void* clientData )
+void wxChoice::GTKInsertComboBoxTextItem( unsigned int n, const wxString& text )
 {
-    wxCHECK_RET( m_widget != NULL, "invalid combobox" );
-  
-    wxNode *node = m_clientDataList.Nth( n );
-    if (!node) return;
-  
-    node->SetData( (wxObject*) clientData );
+    gtk_combo_box_insert_text( GTK_COMBO_BOX( m_widget ), n, wxGTK_CONV( text ) );
 }
 
-void* wxChoice::GetClientData( int n )
+int wxChoice::DoInsertItems(const wxArrayStringsAdapter & items,
+                            unsigned int pos,
+                            void **clientData, wxClientDataType type)
 {
-    wxCHECK_MSG( m_widget != NULL, NULL, "invalid combobox" );
-  
-    wxNode *node = m_clientDataList.Nth( n );
-    if (!node) return NULL;
-    
-    return node->Data();
+    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::SetClientObject( int n, wxClientData* clientData )
+void wxChoice::DoSetItemClientData(unsigned int n, void* clientData)
 {
-    wxCHECK_RET( m_widget != NULL, "invalid combobox" );
-    
-    wxNode *node = m_clientObjectList.Nth( n );
-    if (!node) return;
-  
-    wxClientData *cd = (wxClientData*) node->Data();
-    if (cd) delete cd;
-    
-    node->SetData( (wxObject*) clientData );
+    m_clientData[n] = clientData;
 }
 
-wxClientData* wxChoice::GetClientObject( int n )
+void* wxChoice::DoGetItemClientData(unsigned int n) const
 {
-    wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, "invalid combobox" );
-  
-    wxNode *node = m_clientObjectList.Nth( n );
-    if (!node) return (wxClientData*) NULL;
-    
-    return (wxClientData*) node->Data();
+    return m_clientData[n];
 }
- 
-void wxChoice::Clear()
+
+void wxChoice::DoClear()
 {
-    wxCHECK_RET( m_widget != NULL, "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 );
-    
-    wxNode *node = m_clientObjectList.First();
-    while (node)
-    {
-        wxClientData *cd = (wxClientData*)node->Data();
-        if (cd) delete cd;
-        node = node->Next();
-    }
-    m_clientObjectList.Clear();
-    
-    m_clientDataList.Clear();
+    wxCHECK_RET( m_widget != NULL, wxT("invalid control") );
+
+    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::Delete( int WXUNUSED(n) )
+void wxChoice::DoDeleteOneItem(unsigned int n)
 {
-    wxFAIL_MSG( "wxChoice:Delete not implemented" );
+    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 &string ) const
+int wxChoice::FindString( const wxString &item, bool bCase ) const
 {
-    wxCHECK_MSG( m_widget != NULL, -1, "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) ) );
+    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;
-    GList *child = menu_shell->children;
-    while (child)
+    do
     {
-        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 );
-    
-        wxASSERT_MSG( label != NULL , "wxChoice: invalid label" );
-    
-       if (string == label->label) return count;
-       child = child->next;
-       count++;
+        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++;
     }
-  
-    wxFAIL_MSG( "wxChoice: string not found" );
-  
-    return -1;
+    while ( gtk_tree_model_iter_next(model, &iter) );
+
+    return wxNOT_FOUND;
 }
 
-int wxChoice::GetColumns() const
+int wxChoice::GetSelection() const
 {
-    return 1;
+    return gtk_combo_box_get_active( GTK_COMBO_BOX( m_widget ) );
 }
 
-int wxChoice::GetSelection()
+void wxChoice::SetString(unsigned int n, const wxString &text)
 {
-    wxCHECK_MSG( m_widget != NULL, -1, "invalid choice" );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid control") );
 
-    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)
+    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))
     {
-        GtkBin *bin = GTK_BIN( child->data );
-        if (!bin->child) return count;
-        child = child->next;
-        count++;
+        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 );
     }
-  
-    wxFAIL_MSG( "wxChoice: no selection" );
-  
-    return -1;
+
+    InvalidateBestSize();
 }
 
-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 control") );
 
-    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)
+    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))
     {
-        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_BUTTON(m_widget)->child );
-      
-            wxASSERT_MSG( label != NULL , "wxChoice: invalid label" );
-      
-            return label->label;
-        }
-        child = child->next;
-        count++;
+        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;
     }
-  
-    wxFAIL_MSG( "wxChoice: string not found" );
-  
-    return "";
+
+    return str;
 }
 
-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;
+    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;
 }
 
-int wxChoice::Number() const
+void wxChoice::SetSelection( int n )
 {
-    wxCHECK_MSG( m_widget != NULL, 0, "invalid choice" );
+    wxCHECK_RET( m_widget != NULL, wxT("invalid control") );
 
-    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;
+    DisableEvents();
+
+    GtkComboBox* combobox = GTK_COMBO_BOX( m_widget );
+    gtk_combo_box_set_active( combobox, n );
+
+    EnableEvents();
 }
 
-void wxChoice::SetColumns( int WXUNUSED(n) )
+void wxChoice::SetColumns(int n)
 {
+    gtk_combo_box_set_wrap_width(GTK_COMBO_BOX(m_widget), n);
 }
 
-void wxChoice::SetSelection( int n )
+int wxChoice::GetColumns() const
 {
-    wxCHECK_RET( m_widget != NULL, "invalid choice" );
+    // 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 tmp = n;
-    gtk_option_menu_set_history( GTK_OPTION_MENU(m_widget), (gint)tmp );
-  
-    gtk_choice_clicked_callback( (GtkWidget *) NULL, this );
+
+void wxChoice::DisableEvents()
+{
+    g_signal_handlers_block_by_func(m_widget,
+                                (gpointer) gtk_choice_changed_callback, this);
 }
 
-void wxChoice::SetStringSelection( const wxString &string )
+void wxChoice::EnableEvents()
 {
-    wxCHECK_RET( m_widget != NULL, "invalid choice" );
+    g_signal_handlers_unblock_by_func(m_widget,
+                                (gpointer) gtk_choice_changed_callback, this);
+}
 
-    int n = FindString( string );
-    if (n != -1) SetSelection( n );
+
+GdkWindow *wxChoice::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
+{
+    return m_widget->window;
 }
 
-void wxChoice::ApplyWidgetStyle()
+// 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
 {
-    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 );
-  
-    GList *child = menu_shell->children;
-    while (child)
+    // 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 )
     {
-        gtk_widget_set_style( GTK_WIDGET( child->data ), m_widgetStyle );
-    
-        GtkBin *bin = GTK_BIN( child->data );
-        GtkWidget *label = (GtkWidget *) NULL;
-        if (bin->child) label = bin->child;
-        if (!label) label = GTK_BUTTON(m_widget)->child;
-    
-        gtk_widget_set_style( label, m_widgetStyle );
-    
-        child = child->next;
+        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