On Mac the first visible line needs to be recalculated after the Scroll because it...

[wxWidgets.git] / src / gtk / win_gtk.c

diff --git a/src/gtk/win_gtk.c b/src/gtk/win_gtk.c
index f700ab07cb294d82e37709d8f1968dd7c6c98c7c..4f396aafd1d6222b224a95ba33f3c4ec9846eb58 100644 (file)
--- a/src/gtk/win_gtk.c
+++ b/src/gtk/win_gtk.c
@@ -15,16 +15,31 @@
 
 #include "wx/platform.h"
 #include "wx/gtk/win_gtk.h"
 
 #include "wx/platform.h"
 #include "wx/gtk/win_gtk.h"

-#include "gtk/gtksignal.h"
-#include "gtk/gtkprivate.h"
-#include "gdk/gdkx.h"

 
 #ifdef __cplusplus
 extern "C" {
 #endif /* __cplusplus */
 
 
 #ifdef __cplusplus
 extern "C" {
 #endif /* __cplusplus */
 

+typedef struct _GtkPizzaChild GtkPizzaChild;
+typedef struct _GtkPizzaClass GtkPizzaClass;

 typedef struct _GtkPizzaAdjData  GtkPizzaAdjData;
 
 typedef struct _GtkPizzaAdjData  GtkPizzaAdjData;
 

+struct _GtkPizzaClass
+{
+  GtkContainerClass parent_class;
+
+  void  (*set_scroll_adjustments)   (GtkPizza     *pizza,
+                                     GtkAdjustment  *hadjustment,
+                                     GtkAdjustment  *vadjustment);
+};
+
+struct _GtkPizzaChild
+{
+    GtkWidget *widget;
+    gint x;
+    gint y;
+};
+

 struct _GtkPizzaAdjData
 {
     gint dx;
 struct _GtkPizzaAdjData
 {
     gint dx;


@@ -43,8 +58,6 @@ static void gtk_pizza_size_request  (GtkWidget        *widget,
                                      GtkRequisition   *requisition);
 static void gtk_pizza_size_allocate (GtkWidget        *widget,
                                      GtkAllocation    *allocation);
                                      GtkRequisition   *requisition);
 static void gtk_pizza_size_allocate (GtkWidget        *widget,
                                      GtkAllocation    *allocation);

-static gint gtk_pizza_expose        (GtkWidget        *widget,
-                                     GdkEventExpose   *event);

 static void gtk_pizza_style_set     (GtkWidget *widget,
                                      GtkStyle  *previous_style);
 static void gtk_pizza_add           (GtkContainer     *container,
 static void gtk_pizza_style_set     (GtkWidget *widget,
                                      GtkStyle  *previous_style);
 static void gtk_pizza_add           (GtkContainer     *container,


@@ -58,8 +71,6 @@ static void gtk_pizza_forall        (GtkContainer     *container,
 
 static void     gtk_pizza_allocate_child     (GtkPizza      *pizza,
                                               GtkPizzaChild *child);
 
 static void     gtk_pizza_allocate_child     (GtkPizza      *pizza,
                                               GtkPizzaChild *child);

-static void     gtk_pizza_adjust_allocations_recurse (GtkWidget *widget,
-                                                      gpointer   cb_data);

 
 static GtkType gtk_pizza_child_type (GtkContainer     *container);
 
 
 static GtkType gtk_pizza_child_type (GtkContainer     *container);
 


@@ -67,8 +78,7 @@ static void  gtk_pizza_scroll_set_adjustments (GtkPizza      *pizza,
                                                GtkAdjustment *hadj,
                                                GtkAdjustment *vadj);
 
                                                GtkAdjustment *hadj,
                                                GtkAdjustment *vadj);
 

-/* static */
-GtkContainerClass *pizza_parent_class = NULL;
+static GtkWidgetClass* pizza_parent_class;

 
 GtkType
 gtk_pizza_get_type ()
 
 GtkType
 gtk_pizza_get_type ()


@@ -77,7 +87,7 @@ gtk_pizza_get_type ()
 
     if (!pizza_type)
     {
 
     if (!pizza_type)
     {

-        static const GTypeInfo pizza_info =
+        const GTypeInfo pizza_info =

         {
             sizeof (GtkPizzaClass),
             NULL,           /* base_init */
         {
             sizeof (GtkPizzaClass),
             NULL,           /* base_init */


@@ -88,6 +98,7 @@ gtk_pizza_get_type ()
             sizeof (GtkPizza),
             16,             /* n_preallocs */
             (GInstanceInitFunc) gtk_pizza_init,
             sizeof (GtkPizza),
             16,             /* n_preallocs */
             (GInstanceInitFunc) gtk_pizza_init,

+            NULL

         };
         pizza_type = g_type_register_static (GTK_TYPE_CONTAINER, "GtkPizza", &pizza_info, (GTypeFlags)0);
     }
         };
         pizza_type = g_type_register_static (GTK_TYPE_CONTAINER, "GtkPizza", &pizza_info, (GTypeFlags)0);
     }


@@ -151,7 +162,6 @@ gtk_pizza_class_init (GtkPizzaClass *klass)
     widget_class->unrealize = gtk_pizza_unrealize;
     widget_class->size_request = gtk_pizza_size_request;
     widget_class->size_allocate = gtk_pizza_size_allocate;
     widget_class->unrealize = gtk_pizza_unrealize;
     widget_class->size_request = gtk_pizza_size_request;
     widget_class->size_allocate = gtk_pizza_size_allocate;

-    widget_class->expose_event = gtk_pizza_expose;

     widget_class->style_set = gtk_pizza_style_set;
 
     container_class->add = gtk_pizza_add;
     widget_class->style_set = gtk_pizza_style_set;
 
     container_class->add = gtk_pizza_add;


@@ -186,71 +196,96 @@ gtk_pizza_child_type (GtkContainer     *container)
 static void
 gtk_pizza_init (GtkPizza *pizza)
 {
 static void
 gtk_pizza_init (GtkPizza *pizza)
 {

+    GTK_WIDGET_SET_FLAGS (pizza, GTK_CAN_FOCUS);

     GTK_WIDGET_UNSET_FLAGS (pizza, GTK_NO_WINDOW);
 
     GTK_WIDGET_UNSET_FLAGS (pizza, GTK_NO_WINDOW);
 

-    pizza->shadow_type = GTK_MYSHADOW_NONE;
-

     pizza->children = NULL;
 
     pizza->children = NULL;
 

-    pizza->width = 20;
-    pizza->height = 20;
-

     pizza->bin_window = NULL;
 
     pizza->bin_window = NULL;
 

-    pizza->xoffset = 0;
-    pizza->yoffset = 0;
+    pizza->m_xoffset = 0;
+    pizza->m_yoffset = 0;
+}
+
+GtkWidget*
+gtk_pizza_new ()
+{
+    GtkPizza *pizza;

 
 

-    pizza->scroll_x = 0;
-    pizza->scroll_y = 0;
+    pizza = g_object_new (gtk_pizza_get_type (), NULL);
+    
+    pizza->m_noscroll = FALSE;

 
 

-    pizza->external_expose = FALSE;
+    return GTK_WIDGET (pizza);

 }
 
 GtkWidget*
 }
 
 GtkWidget*

-gtk_pizza_new ()
+gtk_pizza_new_no_scroll ()

 {
     GtkPizza *pizza;
 
 {
     GtkPizza *pizza;
 

-    pizza = gtk_type_new (gtk_pizza_get_type ());
+    pizza = g_object_new (gtk_pizza_get_type (), NULL);
+
+    pizza->m_noscroll = TRUE;

 
     return GTK_WIDGET (pizza);
 }
 
 
     return GTK_WIDGET (pizza);
 }
 

-static void
-gtk_pizza_scroll_set_adjustments (GtkPizza     *pizza,
-                                    GtkAdjustment  *hadj,
-                                    GtkAdjustment  *vadj)
+gint       gtk_pizza_get_xoffset     (GtkPizza          *pizza)

 {
 {

-   /* We handle scrolling in the wxScrolledWindow, not here. */
+    g_return_val_if_fail ( (pizza != NULL), -1 );
+    g_return_val_if_fail ( (GTK_IS_PIZZA (pizza)), -1 );
+
+    return pizza->m_xoffset;

 }
 
 }
 

-void
-gtk_pizza_set_shadow_type (GtkPizza        *pizza,
-                           GtkMyShadowType  type)
+gint       gtk_pizza_get_yoffset     (GtkPizza          *pizza)
+{
+    g_return_val_if_fail ( (pizza != NULL), -1 );
+    g_return_val_if_fail ( (GTK_IS_PIZZA (pizza)), -1 );
+
+    return pizza->m_yoffset;
+}
+
+void       gtk_pizza_set_xoffset     (GtkPizza          *pizza, gint xoffset)

 {
     g_return_if_fail (pizza != NULL);
     g_return_if_fail (GTK_IS_PIZZA (pizza));
 
 {
     g_return_if_fail (pizza != NULL);
     g_return_if_fail (GTK_IS_PIZZA (pizza));
 

-    if ((GtkMyShadowType) pizza->shadow_type != type)
-    {
-        pizza->shadow_type = type;
-
-        if (GTK_WIDGET_VISIBLE (pizza))
-        {
-            gtk_widget_size_allocate (GTK_WIDGET (pizza), &(GTK_WIDGET (pizza)->allocation));
-            gtk_widget_queue_draw (GTK_WIDGET (pizza));
-        }
-    }
+    pizza->m_xoffset = xoffset;
+    // do something

 }
 
 }
 

-void
-gtk_pizza_set_external (GtkPizza  *pizza,
-                        gboolean   expose)
+void       gtk_pizza_set_yoffset     (GtkPizza          *pizza, gint yoffset)

 {
     g_return_if_fail (pizza != NULL);
     g_return_if_fail (GTK_IS_PIZZA (pizza));
 
 {
     g_return_if_fail (pizza != NULL);
     g_return_if_fail (GTK_IS_PIZZA (pizza));
 

-    pizza->external_expose = expose;
+    pizza->m_xoffset = yoffset;
+    // do something
+}
+
+gint       gtk_pizza_get_rtl_offset  (GtkPizza          *pizza)
+{
+    gint border;
+
+    g_return_val_if_fail ( (pizza != NULL), 0 );
+    g_return_val_if_fail ( (GTK_IS_PIZZA (pizza)), 0 );
+
+    if (!pizza->bin_window) return 0;
+
+    border = pizza->container.border_width;
+
+    return GTK_WIDGET(pizza)->allocation.width - border*2;
+}
+
+
+static void
+gtk_pizza_scroll_set_adjustments (GtkPizza     *pizza,
+                                    GtkAdjustment  *hadj,
+                                    GtkAdjustment  *vadj)
+{
+   /* We handle scrolling in the wxScrolledWindow, not here. */

 }
 
 void
 }
 
 void


@@ -272,17 +307,17 @@ gtk_pizza_put (GtkPizza   *pizza,
     child_info->widget = widget;
     child_info->x = x;
     child_info->y = y;
     child_info->widget = widget;
     child_info->x = x;
     child_info->y = y;

-    child_info->width = width;
-    child_info->height = height;

 
     pizza->children = g_list_append (pizza->children, child_info);
 
     if (GTK_WIDGET_REALIZED (pizza))
 
     pizza->children = g_list_append (pizza->children, child_info);
 
     if (GTK_WIDGET_REALIZED (pizza))

-      gtk_widget_set_parent_window (widget, pizza->bin_window);
+        gtk_widget_set_parent_window (widget, pizza->bin_window);

 
     gtk_widget_set_parent (widget, GTK_WIDGET (pizza));
 
 
     gtk_widget_set_parent (widget, GTK_WIDGET (pizza));
 

-    gtk_widget_set_size_request (widget, width, height);
+    gtk_widget_set_size_request( widget, width, height );
+    if (GTK_WIDGET_REALIZED (pizza))
+        gtk_pizza_allocate_child (pizza, child_info);

 }
 
 void
 }
 
 void


@@ -318,21 +353,15 @@ gtk_pizza_set_size (GtkPizza   *pizza,
 
         if (child->widget == widget)
         {
 
         if (child->widget == widget)
         {

-            if ((child->x == x) &&
-                (child->y == y) &&
-                (child->width == width) &&
-                (child->height == height)) return;
-
-            child->x = x;
-            child->y = y;
-            child->width = width;
-            child->height = height;
+            if (child->x != x || child->y != y)
+            {
+                child->x = x;
+                child->y = y;
+                gtk_widget_queue_resize(widget);
+            }

 
             gtk_widget_set_size_request (widget, width, height);
 
 
             gtk_widget_set_size_request (widget, width, height);
 

-            if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (pizza))
-                gtk_widget_queue_resize (widget);
-

             return;
         }
     }
             return;
         }
     }


@@ -358,8 +387,7 @@ gtk_pizza_map (GtkWidget *widget)
         children = children->next;
 
         if ( GTK_WIDGET_VISIBLE (child->widget) &&
         children = children->next;
 
         if ( GTK_WIDGET_VISIBLE (child->widget) &&

-            !GTK_WIDGET_MAPPED (child->widget) &&
-            TRUE)
+            !GTK_WIDGET_MAPPED (child->widget) )

         {
             gtk_widget_map (child->widget);
         }
         {
             gtk_widget_map (child->widget);
         }


@@ -377,6 +405,8 @@ gtk_pizza_realize (GtkWidget *widget)
     gint attributes_mask;
     GtkPizzaChild *child;
     GList *children;
     gint attributes_mask;
     GtkPizzaChild *child;
     GList *children;

+    int border;
+    int w, h;

 
     g_return_if_fail (widget != NULL);
     g_return_if_fail (GTK_IS_PIZZA (widget));
 
     g_return_if_fail (widget != NULL);
     g_return_if_fail (GTK_IS_PIZZA (widget));


@@ -391,34 +421,24 @@ gtk_pizza_realize (GtkWidget *widget)
     attributes.width = widget->allocation.width;
     attributes.height = widget->allocation.height;
 
     attributes.width = widget->allocation.width;
     attributes.height = widget->allocation.height;
 

-#ifndef __WXUNIVERSAL__
-    if (pizza->shadow_type == GTK_MYSHADOW_NONE)
-    {
-        /* no border, no changes to sizes */
-    }
-    else if (pizza->shadow_type == GTK_MYSHADOW_THIN)
-    {
-        /* GTK_MYSHADOW_THIN == wxSIMPLE_BORDER */
-        attributes.x += 1;
-        attributes.y += 1;
-        attributes.width -= 2;
-        attributes.height -= 2;
-    }
-    else
-    {
-        /* GTK_MYSHADOW_IN == wxSUNKEN_BORDER */
-        /* GTK_MYSHADOW_OUT == wxRAISED_BORDER */
-        attributes.x += 2;
-        attributes.y += 2;
-        attributes.width -= 4;
-        attributes.height -= 4;
-    }
-#endif /* __WXUNIVERSAL__ */
-

     /* minimal size */
     if (attributes.width < 2) attributes.width = 2;
     if (attributes.height < 2) attributes.height = 2;
 
     /* minimal size */
     if (attributes.width < 2) attributes.width = 2;
     if (attributes.height < 2) attributes.height = 2;
 

+    border = pizza->container.border_width;
+    w = attributes.width  - 2 * border;
+    h = attributes.height - 2 * border;
+    if (w < 2) w = 2;
+    if (h < 2) h = 2;
+
+    if (!pizza->m_noscroll)
+    {
+        attributes.x += border;
+        attributes.y += border;
+        attributes.width  = w;
+        attributes.height = h;
+    }
+

     attributes.wclass = GDK_INPUT_OUTPUT;
     attributes.visual = gtk_widget_get_visual (widget);
     attributes.colormap = gtk_widget_get_colormap (widget);
     attributes.wclass = GDK_INPUT_OUTPUT;
     attributes.visual = gtk_widget_get_visual (widget);
     attributes.colormap = gtk_widget_get_colormap (widget);


@@ -431,6 +451,13 @@ gtk_pizza_realize (GtkWidget *widget)
 
     attributes.x = 0;
     attributes.y = 0;
 
     attributes.x = 0;
     attributes.y = 0;

+    if (pizza->m_noscroll)
+    {
+        attributes.x = border;
+        attributes.y = border;
+        attributes.width  = w;
+        attributes.height = h;
+    }

 
     attributes.event_mask = gtk_widget_get_events (widget);
     attributes.event_mask |= GDK_EXPOSURE_MASK              |
 
     attributes.event_mask = gtk_widget_get_events (widget);
     attributes.event_mask |= GDK_EXPOSURE_MASK              |


@@ -487,8 +514,8 @@ gtk_pizza_unrealize (GtkWidget *widget)
     gdk_window_destroy (pizza->bin_window);
     pizza->bin_window = NULL;
 
     gdk_window_destroy (pizza->bin_window);
     pizza->bin_window = NULL;
 

-    if (GTK_WIDGET_CLASS (pizza_parent_class)->unrealize)
-       (* GTK_WIDGET_CLASS (pizza_parent_class)->unrealize) (widget);
+    if (pizza_parent_class->unrealize)
+        pizza_parent_class->unrealize(widget);

 }
 
 static void
 }
 
 static void


@@ -533,6 +560,7 @@ gtk_pizza_size_allocate (GtkWidget     *widget,
     gint x,y,w,h;
     GtkPizzaChild *child;
     GList *children;
     gint x,y,w,h;
     GtkPizzaChild *child;
     GList *children;

+    gboolean only_resize;

 
     g_return_if_fail (widget != NULL);
     g_return_if_fail (GTK_IS_PIZZA(widget));
 
     g_return_if_fail (widget != NULL);
     g_return_if_fail (GTK_IS_PIZZA(widget));


@@ -540,25 +568,42 @@ gtk_pizza_size_allocate (GtkWidget     *widget,
 
     pizza = GTK_PIZZA (widget);
 
 
     pizza = GTK_PIZZA (widget);
 

+    only_resize = ((widget->allocation.x == allocation->x) &&
+                   (widget->allocation.y == allocation->y));

     widget->allocation = *allocation;
 
     widget->allocation = *allocation;
 

-    if (pizza->shadow_type == GTK_MYSHADOW_NONE)
-        border = 0;
-    else
-    if (pizza->shadow_type == GTK_MYSHADOW_THIN)
-        border = 1;
-    else
-        border = 2;
+    if (GTK_WIDGET_REALIZED(widget))
+    {
+        border = pizza->container.border_width;
+
+        x = allocation->x + border;
+        y = allocation->y + border;
+        w = allocation->width - border*2;
+        h = allocation->height - border*2;
+        if (w < 0)
+            w = 0;
+        if (h < 0)
+            h = 0;
+
+        if (pizza->m_noscroll)
+        {
+            if (only_resize)
+                gdk_window_resize( widget->window, allocation->width, allocation->height );
+            else
+                gdk_window_move_resize( widget->window, allocation->x, allocation->y, 
+                                                        allocation->width, allocation->height );

 
 

-    x = allocation->x + border;
-    y = allocation->y + border;
-    w = allocation->width - border*2;
-    h = allocation->height - border*2;
+            gdk_window_move_resize( pizza->bin_window, border, border, w, h );
+        }
+        else
+        {
+            if (only_resize)
+                gdk_window_resize( widget->window, w, h );
+            else
+                gdk_window_move_resize( widget->window, x, y, w, h );

 
 

-    if (GTK_WIDGET_REALIZED (widget))
-    {
-        gdk_window_move_resize( widget->window, x, y, w, h );
-        gdk_window_move_resize( pizza->bin_window, 0, 0, w, h );
+            gdk_window_resize( pizza->bin_window, w, h );
+        }

     }
 
     children = pizza->children;
     }
 
     children = pizza->children;


@@ -571,30 +616,6 @@ gtk_pizza_size_allocate (GtkWidget     *widget,
     }
 }
 
     }
 }
 

-static gint
-gtk_pizza_expose (GtkWidget      *widget,
-                  GdkEventExpose *event)
-{
-    GtkPizza *pizza;
-
-    g_return_val_if_fail (widget != NULL, FALSE);
-    g_return_val_if_fail (GTK_IS_PIZZA (widget), FALSE);
-    g_return_val_if_fail (event != NULL, FALSE);
-
-    pizza = GTK_PIZZA (widget);
-
-    if (event->window != pizza->bin_window)
-        return FALSE;
-
-    /* We handle all expose events in window.cpp now. */
-    if (pizza->external_expose)
-        return FALSE;
-
-    (* GTK_WIDGET_CLASS (pizza_parent_class)->expose_event) (widget, event);
-
-    return FALSE;
-}
-

 static void
 gtk_pizza_style_set(GtkWidget *widget, GtkStyle  *previous_style)
 {
 static void
 gtk_pizza_style_set(GtkWidget *widget, GtkStyle  *previous_style)
 {


@@ -604,7 +625,7 @@ gtk_pizza_style_set(GtkWidget *widget, GtkStyle  *previous_style)
         gtk_style_set_background(widget->style, GTK_PIZZA(widget)->bin_window, GTK_STATE_NORMAL );
     }
 
         gtk_style_set_background(widget->style, GTK_PIZZA(widget)->bin_window, GTK_STATE_NORMAL );
     }
 

-    (* GTK_WIDGET_CLASS (pizza_parent_class)->style_set) (widget, previous_style);
+    pizza_parent_class->style_set(widget, previous_style);

 }
 
 static void
 }
 
 static void


@@ -691,74 +712,51 @@ gtk_pizza_allocate_child (GtkPizza      *pizza,
     GtkAllocation allocation;
     GtkRequisition requisition;
 
     GtkAllocation allocation;
     GtkRequisition requisition;
 

-    allocation.x = child->x - pizza->xoffset;
-    allocation.y = child->y - pizza->yoffset;
+    allocation.x = child->x - pizza->m_xoffset;
+    allocation.y = child->y - pizza->m_yoffset;

     gtk_widget_get_child_requisition (child->widget, &requisition);
     allocation.width = requisition.width;
     allocation.height = requisition.height;
 
     gtk_widget_get_child_requisition (child->widget, &requisition);
     allocation.width = requisition.width;
     allocation.height = requisition.height;
 

-    gtk_widget_size_allocate (child->widget, &allocation);
-}
-
-static void
-gtk_pizza_adjust_allocations_recurse (GtkWidget *widget,
-                                       gpointer   cb_data)
-{
-    GtkPizzaAdjData *data = cb_data;
+    if (gtk_widget_get_direction( GTK_WIDGET(pizza) ) == GTK_TEXT_DIR_RTL)
+    {
+        /* reverse horizontal placement */
+        gint offset,border;

 
 

-    widget->allocation.x += data->dx;
-    widget->allocation.y += data->dy;
+        offset = GTK_WIDGET(pizza)->allocation.width;
+        border = pizza->container.border_width;
+        offset -= border*2;

 
 

-    if (GTK_WIDGET_NO_WINDOW (widget) && GTK_IS_CONTAINER (widget))
-    {
-        gtk_container_forall (GTK_CONTAINER (widget),
-                          gtk_pizza_adjust_allocations_recurse,
-                          cb_data);
+        allocation.x = offset - child->x - allocation.width + pizza->m_xoffset;

     }
     }

+
+    gtk_widget_size_allocate (child->widget, &allocation);

 }
 
 }
 

-static void
-gtk_pizza_adjust_allocations (GtkPizza *pizza,
-                               gint       dx,
-                               gint       dy)
+void
+gtk_pizza_scroll (GtkPizza *pizza, gint dx, gint dy)

 {
     GList *tmp_list;
 {
     GList *tmp_list;

-    GtkPizzaAdjData data;
-
-    data.dx = dx;
-    data.dy = dy;
+    
+    pizza->m_xoffset += dx;
+    pizza->m_yoffset += dy;

 
 

+    if (pizza->bin_window)
+        gdk_window_scroll( pizza->bin_window, -dx, -dy );
+        

     tmp_list = pizza->children;
     while (tmp_list)
     {
         GtkPizzaChild *child = tmp_list->data;
         tmp_list = tmp_list->next;
 
     tmp_list = pizza->children;
     while (tmp_list)
     {
         GtkPizzaChild *child = tmp_list->data;
         tmp_list = tmp_list->next;
 

-        child->widget->allocation.x += dx;
-        child->widget->allocation.y += dy;
-
-        if (GTK_WIDGET_NO_WINDOW (child->widget) &&
-            GTK_IS_CONTAINER (child->widget))
-        {
-            gtk_container_forall (GTK_CONTAINER (child->widget),
-                                  gtk_pizza_adjust_allocations_recurse,
-                                  &data);
-        }
+        GtkAllocation alloc = child->widget->allocation;
+        alloc.x -= dx;
+        alloc.y -= dy;
+        gtk_widget_size_allocate( child->widget, &alloc );

     }
 }
 
     }
 }
 

-void
-gtk_pizza_scroll (GtkPizza *pizza, gint dx, gint dy)
-{
-    pizza->xoffset += dx;
-    pizza->yoffset += dy;
-
-    gtk_pizza_adjust_allocations (pizza, -dx, -dy);
-
-    if (pizza->bin_window)
-        gdk_window_scroll( pizza->bin_window, -dx, -dy );
-}
-

 #ifdef __cplusplus
 }
 #endif /* __cplusplus */
 #ifdef __cplusplus
 }
 #endif /* __cplusplus */