Avoid some more type checks for internal calls

12 files changed, 40 insertions, 41 deletions

diff --git a/gtk/gtkbox.c b/gtk/gtkbox.c
index af33b27ffb..2fbf2bf6f7 100644
--- a/gtk/gtkbox.c
+++ b/gtk/gtkbox.c
@@ -496,7 +496,7 @@ gtk_box_size_allocate_no_center (GtkWidget           *widget,
   if (nvis_children <= 0)
     return;
 
-  direction = gtk_widget_get_direction (widget);
+  direction = _gtk_widget_get_direction (widget);
   sizes = g_newa (GtkRequestedSize, nvis_children);
   spacing = get_spacing (box);
 
@@ -837,7 +837,7 @@ gtk_box_size_allocate_with_center (GtkWidget           *widget,
         }
     }
 
-  direction = gtk_widget_get_direction (widget);
+  direction = _gtk_widget_get_direction (widget);
   sizes[0] = g_newa (GtkRequestedSize, nvis[0]);
   sizes[1] = g_newa (GtkRequestedSize, nvis[1]);
 
@@ -1377,7 +1377,7 @@ gtk_box_get_path_for_child (GtkContainer *container,
       /* get_children works in visible order */
       children = gtk_container_get_children (container);
       if (private->orientation == GTK_ORIENTATION_HORIZONTAL &&
-          gtk_widget_get_direction (GTK_WIDGET (box)) == GTK_TEXT_DIR_RTL)
+          _gtk_widget_get_direction (GTK_WIDGET (box)) == GTK_TEXT_DIR_RTL)
         children = g_list_reverse (children);
 
       for (list = children; list; list = list->next)
@@ -1445,7 +1445,7 @@ gtk_box_update_child_css_position (GtkBox      *box,
 
   reverse = child_info->pack == GTK_PACK_END;
   if (box->priv->orientation == GTK_ORIENTATION_HORIZONTAL &&
-      gtk_widget_get_direction (GTK_WIDGET (box)) == GTK_TEXT_DIR_RTL)
+      _gtk_widget_get_direction (GTK_WIDGET (box)) == GTK_TEXT_DIR_RTL)
     reverse = !reverse;
 
   if (reverse)
diff --git a/gtk/gtkframe.c b/gtk/gtkframe.c
index 82eb46512d..85f61f8003 100644
--- a/gtk/gtkframe.c
+++ b/gtk/gtkframe.c
@@ -724,7 +724,7 @@ gtk_frame_allocate (GtkCssGadget        *gadget,
       gint nat_width, width, height;
       gfloat xalign;
 
-      if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
+      if (_gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
 	xalign = priv->label_xalign;
       else
 	xalign = 1 - priv->label_xalign;
diff --git a/gtk/gtkgrid.c b/gtk/gtkgrid.c
index 19a8ecf8be..4a9af16adb 100644
--- a/gtk/gtkgrid.c
+++ b/gtk/gtkgrid.c
@@ -1596,7 +1596,7 @@ gtk_grid_request_allocate_children (GtkGridRequest      *request,
       child_allocation.width = MAX (1, width);
       child_allocation.height = MAX (1, height);
 
-      if (gtk_widget_get_direction (GTK_WIDGET (request->grid)) == GTK_TEXT_DIR_RTL)
+      if (_gtk_widget_get_direction (GTK_WIDGET (request->grid)) == GTK_TEXT_DIR_RTL)
         child_allocation.x = allocation->x + allocation->width
                              - (child_allocation.x - allocation->x) - child_allocation.width;
 
diff --git a/gtk/gtklabel.c b/gtk/gtklabel.c
index 7a24f71f48..575621d27d 100644
--- a/gtk/gtklabel.c
+++ b/gtk/gtklabel.c
@@ -3518,7 +3518,7 @@ gtk_label_ensure_layout (GtkLabel *label)
 
   widget = GTK_WIDGET (label);
 
-  rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
+  rtl = _gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
 
   if (!priv->layout)
     {
@@ -3900,7 +3900,7 @@ get_layout_location (GtkLabel  *label,
   xalign = priv->xalign;
   yalign = priv->yalign;
 
-  if (gtk_widget_get_direction (widget) != GTK_TEXT_DIR_LTR)
+  if (_gtk_widget_get_direction (widget) != GTK_TEXT_DIR_LTR)
     xalign = 1.0 - xalign;
 
   pango_layout_get_extents (priv->layout, NULL, &logical);
@@ -4200,13 +4200,13 @@ gtk_label_render (GtkCssGadget *gadget,
 
   gtk_label_ensure_layout (label);
 
-  context = gtk_widget_get_style_context (widget);
+  context = _gtk_widget_get_style_context (widget);
 
   if (GTK_IS_ACCEL_LABEL (widget))
     {
       guint ac_width = gtk_accel_label_get_accel_width (GTK_ACCEL_LABEL (widget));
       width -= ac_width;
-      if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
+      if (_gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
         x += ac_width;
     }
 
@@ -4514,7 +4514,7 @@ window_to_layout_coords (GtkLabel *label,
 
   /* get layout location in widget->window coords */
   get_layout_location (label, &lx, &ly);
-  gtk_widget_get_allocation (GTK_WIDGET (label), &allocation);
+  _gtk_widget_get_allocation (GTK_WIDGET (label), &allocation);
 
   *x += allocation.x; /* go to widget->window */
   *x -= lx;                   /* go to layout */
@@ -4533,7 +4533,7 @@ layout_to_window_coords (GtkLabel *label,
 
   /* get layout location in widget->window coords */
   get_layout_location (label, &lx, &ly);
-  gtk_widget_get_allocation (GTK_WIDGET (label), &allocation);
+  _gtk_widget_get_allocation (GTK_WIDGET (label), &allocation);
 
   *x += lx;           /* go to widget->window */
   *x -= allocation.x; /* go to selection window */
diff --git a/gtk/gtkoverlay.c b/gtk/gtkoverlay.c
index fb60952e50..5752a3ca56 100644
--- a/gtk/gtkoverlay.c
+++ b/gtk/gtkoverlay.c
@@ -23,6 +23,7 @@
 #include "gtkoverlay.h"
 #include "gtkbuildable.h"
 #include "gtkscrolledwindow.h"
+#include "gtkwidgetprivate.h"
 #include "gtkmarshalers.h"
 
 #include "gtkprivate.h"
@@ -342,7 +343,7 @@ gtk_overlay_get_child_position (GtkOverlay    *overlay,
   alloc->x = main_alloc.x;
   alloc->width = MAX (min.width, MIN (main_alloc.width, req.width));
 
-  direction = gtk_widget_get_direction (widget);
+  direction = _gtk_widget_get_direction (widget);
 
   halign = gtk_widget_get_halign (widget);
   switch (effective_align (halign, direction))
diff --git a/gtk/gtkpopover.c b/gtk/gtkpopover.c
index c848fdb425..3376ec027e 100644
--- a/gtk/gtkpopover.c
+++ b/gtk/gtkpopover.c
@@ -663,7 +663,7 @@ static GtkPositionType
 get_effective_position (GtkPopover      *popover,
                         GtkPositionType  pos)
 {
-  if (gtk_widget_get_direction (GTK_WIDGET (popover)) == GTK_TEXT_DIR_RTL)
+  if (_gtk_widget_get_direction (GTK_WIDGET (popover)) == GTK_TEXT_DIR_RTL)
     {
       if (pos == GTK_POS_LEFT)
         pos = GTK_POS_RIGHT;
@@ -730,7 +730,7 @@ gtk_popover_get_gap_coords (GtkPopover      *popover,
 
   get_margin (widget, &margin);
 
-  if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
+  if (_gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
     {
       widget_margin.left = gtk_widget_get_margin_start (widget);
       widget_margin.right = gtk_widget_get_margin_end (widget);
diff --git a/gtk/gtkscrolledwindow.c b/gtk/gtkscrolledwindow.c
index 4fb1f2ab60..b4e5c8c956 100644
--- a/gtk/gtkscrolledwindow.c
+++ b/gtk/gtkscrolledwindow.c
@@ -485,7 +485,7 @@ update_scrollbar_positions (GtkScrolledWindow *scrolled_window)
   if (priv->vscrollbar != NULL)
     {
       context = gtk_widget_get_style_context (priv->vscrollbar);
-      is_rtl = gtk_widget_get_direction (GTK_WIDGET (scrolled_window)) == GTK_TEXT_DIR_RTL;
+      is_rtl = _gtk_widget_get_direction (GTK_WIDGET (scrolled_window)) == GTK_TEXT_DIR_RTL;
       if ((is_rtl &&
           (priv->window_placement == GTK_CORNER_TOP_RIGHT ||
            priv->window_placement == GTK_CORNER_BOTTOM_RIGHT)) ||
@@ -3062,7 +3062,7 @@ gtk_scrolled_window_relative_allocation (GtkWidget     *widget,
     {
       gboolean is_rtl;
 
-      is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
+      is_rtl = _gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
 
       if ((!is_rtl &&
 	   (priv->window_placement == GTK_CORNER_TOP_RIGHT ||
@@ -3192,10 +3192,10 @@ gtk_scrolled_window_allocate_scrollbar (GtkScrolledWindow *scrolled_window,
     }
   else if (scrollbar == priv->vscrollbar)
     {
-      if ((gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL &&
+      if ((_gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL &&
 	   (priv->window_placement == GTK_CORNER_TOP_RIGHT ||
 	    priv->window_placement == GTK_CORNER_BOTTOM_RIGHT)) ||
-	  (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR &&
+	  (_gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR &&
 	   (priv->window_placement == GTK_CORNER_TOP_LEFT ||
 	    priv->window_placement == GTK_CORNER_BOTTOM_LEFT)))
         {
@@ -3496,7 +3496,7 @@ _gtk_scrolled_window_set_adjustment_value (GtkScrolledWindow *scrolled_window,
 
   /* Invert horizontal edge position on RTL */
   if (!vertical &&
-      gtk_widget_get_direction (GTK_WIDGET (scrolled_window)) == GTK_TEXT_DIR_RTL)
+      _gtk_widget_get_direction (GTK_WIDGET (scrolled_window)) == GTK_TEXT_DIR_RTL)
     edge_pos = (edge_pos == GTK_POS_LEFT) ? GTK_POS_RIGHT : GTK_POS_LEFT;
 
   g_signal_emit (scrolled_window, signals[EDGE_OVERSHOT], 0, edge_pos);
@@ -3743,7 +3743,7 @@ maybe_emit_edge_reached (GtkScrolledWindow *scrolled_window,
     return;
 
   if (!vertical &&
-      gtk_widget_get_direction (GTK_WIDGET (scrolled_window)) == GTK_TEXT_DIR_RTL)
+      _gtk_widget_get_direction (GTK_WIDGET (scrolled_window)) == GTK_TEXT_DIR_RTL)
     edge_pos = (edge_pos == GTK_POS_LEFT) ? GTK_POS_RIGHT : GTK_POS_LEFT;
 
   g_signal_emit (scrolled_window, signals[EDGE_REACHED], 0, edge_pos);
diff --git a/gtk/gtkspinbutton.c b/gtk/gtkspinbutton.c
index 815abe3324..6eb7eb1e15 100644
--- a/gtk/gtkspinbutton.c
+++ b/gtk/gtkspinbutton.c
@@ -675,7 +675,7 @@ update_node_ordering (GtkSpinButton *spin_button)
 
   if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
     {
-      if (gtk_widget_get_direction (GTK_WIDGET (spin_button)) == GTK_TEXT_DIR_LTR)
+      if (_gtk_widget_get_direction (GTK_WIDGET (spin_button)) == GTK_TEXT_DIR_LTR)
         {
           down_button_pos = 1;
           up_button_pos = -1;
diff --git a/gtk/gtkstack.c b/gtk/gtkstack.c
index 1021e50525..d1f4767ed8 100644
--- a/gtk/gtkstack.c
+++ b/gtk/gtkstack.c
@@ -945,7 +945,7 @@ static GtkStackTransitionType
 effective_transition_type (GtkStack               *stack,
                            GtkStackTransitionType  transition_type)
 {
-  if (gtk_widget_get_direction (GTK_WIDGET (stack)) == GTK_TEXT_DIR_RTL)
+  if (_gtk_widget_get_direction (GTK_WIDGET (stack)) == GTK_TEXT_DIR_RTL)
     {
       switch (transition_type)
         {
diff --git a/gtk/gtktreeview.c b/gtk/gtktreeview.c
index f1dc8a9002..e289d0b256 100644
--- a/gtk/gtktreeview.c
+++ b/gtk/gtktreeview.c
@@ -2466,7 +2466,7 @@ gtk_tree_view_calculate_width_before_expander (GtkTreeView *tree_view)
   GList *list;
   gboolean rtl;
 
-  rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
+  rtl = (_gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
        list->data != tree_view->priv->expander_column;
        list = (rtl ? list->prev : list->next))
@@ -2513,7 +2513,7 @@ gtk_tree_view_size_allocate_columns (GtkWidget *widget,
   if (first_column == NULL)
     return;
 
-  rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
+  rtl = (_gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
 
   /* find out how many extra space and expandable columns we have */
   for (list = tree_view->priv->columns; list != last_column->next; list = list->next)
@@ -2678,7 +2678,7 @@ gtk_tree_view_size_allocate (GtkWidget     *widget,
                                  tree_view->priv->width));
   g_object_thaw_notify (G_OBJECT (tree_view->priv->hadjustment));
 
-  if (gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL)   
+  if (_gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL)
     {
       if (allocation->width < tree_view->priv->width)
         {
@@ -2774,7 +2774,7 @@ gtk_tree_view_size_allocate (GtkWidget     *widget,
       int size;
       GtkTextDirection direction;
 
-      direction = gtk_widget_get_direction (child->widget);
+      direction = _gtk_widget_get_direction (child->widget);
       path = _gtk_tree_path_new_from_rbtree (child->tree, child->node);
       gtk_tree_view_get_cell_area (tree_view, path, child->column, &child_rect);
       child_rect.x += child->border.left;
@@ -2929,7 +2929,7 @@ gtk_tree_view_multipress_gesture_pressed (GtkGestureMultiPress *gesture,
   GList *list;
   gboolean rtl;
 
-  rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
+  rtl = (_gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
   gtk_tree_view_stop_editing (tree_view, FALSE);
   button = gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (gesture));
 
@@ -3004,7 +3004,7 @@ gtk_tree_view_multipress_gesture_pressed (GtkGestureMultiPress *gesture,
   background_area.x = 0;
 
   /* Let the column have a chance at selecting it. */
-  rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
+  rtl = (_gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
        list; list = (rtl ? list->prev : list->next))
     {
@@ -4751,7 +4751,7 @@ gtk_tree_view_snapshot_grid_lines (GtkTreeView *tree_view,
       && tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_BOTH)
     return;
 
-  rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
+  rtl = (_gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
 
   first = g_list_first (tree_view->priv->columns);
   last = g_list_last (tree_view->priv->columns);
@@ -4816,7 +4816,7 @@ gtk_tree_view_bin_snapshot (GtkWidget   *widget,
   GtkStyleContext *context;
   gboolean parity;
 
-  rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
+  rtl = (_gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
   context = gtk_widget_get_style_context (widget);
 
   if (tree_view->priv->tree == NULL)
@@ -9193,7 +9193,7 @@ gtk_tree_view_get_background_xrange (GtkTreeView       *tree_view,
   if (x2)
     *x2 = 0;
 
-  rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
+  rtl = (_gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
 
   total_width = 0;
   for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
@@ -9240,7 +9240,7 @@ gtk_tree_view_get_arrow_xrange (GtkTreeView *tree_view,
   gint expander_size, expander_render_size;
   gboolean rtl;
 
-  rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
+  rtl = (_gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
   expander_size = gtk_tree_view_get_expander_size (tree_view);
   expander_render_size = expander_size - (_TREE_VIEW_HORIZONTAL_SEPARATOR / 2);
 
@@ -10013,7 +10013,7 @@ gtk_tree_view_snapshot_arrow (GtkTreeView *tree_view,
 
   widget = GTK_WIDGET (tree_view);
   context = gtk_widget_get_style_context (widget);
-  rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
+  rtl = (_gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
 
   if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
     return;
@@ -10133,7 +10133,7 @@ gtk_tree_view_focus_to_cursor (GtkTreeView *tree_view)
                     {
                       gboolean rtl;
 
-                      rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
+                      rtl = (_gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
                       gtk_cell_area_focus (cell_area,
                                            rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT);
                     }
@@ -13088,7 +13088,7 @@ gtk_tree_view_get_path_at_pos (GtkTreeView        *tree_view,
       gboolean rtl;
       gint width;
 
-      rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
+      rtl = (_gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
       for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
 	   list;
 	   list = (rtl ? list->prev : list->next))
@@ -13257,7 +13257,7 @@ gtk_tree_view_get_cell_area (GtkTreeView        *tree_view,
 	  gint depth = gtk_tree_path_get_depth (path);
 	  gboolean rtl;
 
-	  rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
+	  rtl = _gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
 
 	  if (!rtl)
 	    rect->x += (depth - 1) * tree_view->priv->level_indentation;
diff --git a/gtk/gtkviewport.c b/gtk/gtkviewport.c
index 2e0ec507bb..d439c456e3 100644
--- a/gtk/gtkviewport.c
+++ b/gtk/gtkviewport.c
@@ -215,7 +215,7 @@ viewport_set_adjustment_values (GtkViewport    *viewport,
 
   /* We clamp to the left in RTL mode */
   if (orientation == GTK_ORIENTATION_HORIZONTAL &&
-      gtk_widget_get_direction (GTK_WIDGET (viewport)) == GTK_TEXT_DIR_RTL)
+      _gtk_widget_get_direction (GTK_WIDGET (viewport)) == GTK_TEXT_DIR_RTL)
     {
       gdouble dist = gtk_adjustment_get_upper (adjustment)
                      - value
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index 14b2d6d7e1..99bb345ddf 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -15617,7 +15617,7 @@ gtk_widget_snapshot (GtkWidget   *widget,
   if (GTK_DEBUG_CHECK (SNAPSHOT))
     gtk_snapshot_push (snapshot, TRUE, "%s<%p>", gtk_widget_get_name (widget), widget);
 
-  filter_value = _gtk_style_context_peek_property (gtk_widget_get_style_context (widget), GTK_CSS_PROPERTY_FILTER);
+  filter_value = _gtk_style_context_peek_property (_gtk_widget_get_style_context (widget), GTK_CSS_PROPERTY_FILTER);
   gtk_css_filter_value_push_snapshot (filter_value, snapshot);
 
   if (mode == RENDER_DRAW)
@@ -15869,8 +15869,6 @@ gtk_widget_snapshot_child (GtkWidget   *widget,
 {
   int x, y;
 
-  g_return_if_fail (GTK_IS_WIDGET (widget));
-  g_return_if_fail (GTK_IS_WIDGET (child));
   g_return_if_fail (_gtk_widget_get_parent (child) == widget);
   g_return_if_fail (snapshot != NULL);