Initial revision

1 files changed, 286 insertions, 0 deletions

diff --git a/gtk/gtkbin.c b/gtk/gtkbin.c
new file mode 100644
index 000000000..4cb7efcc1
--- /dev/null
+++ b/gtk/gtkbin.c
@@ -0,0 +1,286 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include "gtkbin.h"
+
+
+static void gtk_bin_class_init (GtkBinClass    *klass);
+static void gtk_bin_init       (GtkBin         *bin);
+static void gtk_bin_destroy    (GtkObject      *object);
+static void gtk_bin_map        (GtkWidget      *widget);
+static void gtk_bin_unmap      (GtkWidget      *widget);
+static void gtk_bin_draw       (GtkWidget      *widget,
+			        GdkRectangle   *area);
+static gint gtk_bin_expose     (GtkWidget      *widget,
+			        GdkEventExpose *event);
+static void gtk_bin_add        (GtkContainer   *container,
+			        GtkWidget      *widget);
+static void gtk_bin_remove     (GtkContainer   *container,
+			        GtkWidget      *widget);
+static void gtk_bin_foreach    (GtkContainer   *container,
+			        GtkCallback     callback,
+			        gpointer        callback_data);
+
+
+static GtkContainerClass *parent_class = NULL;
+
+
+guint
+gtk_bin_get_type ()
+{
+  static guint bin_type = 0;
+
+  if (!bin_type)
+    {
+      GtkTypeInfo bin_info =
+      {
+	"GtkBin",
+	sizeof (GtkBin),
+	sizeof (GtkBinClass),
+	(GtkClassInitFunc) gtk_bin_class_init,
+	(GtkObjectInitFunc) gtk_bin_init,
+	(GtkArgFunc) NULL,
+      };
+
+      bin_type = gtk_type_unique (gtk_container_get_type (), &bin_info);
+    }
+
+  return bin_type;
+}
+
+static void
+gtk_bin_class_init (GtkBinClass *class)
+{
+  GtkObjectClass *object_class;
+  GtkWidgetClass *widget_class;
+  GtkContainerClass *container_class;
+
+  object_class = (GtkObjectClass*) class;
+  widget_class = (GtkWidgetClass*) class;
+  container_class = (GtkContainerClass*) class;
+
+  parent_class = gtk_type_class (gtk_container_get_type ());
+
+  object_class->destroy = gtk_bin_destroy;
+
+  widget_class->map = gtk_bin_map;
+  widget_class->unmap = gtk_bin_unmap;
+  widget_class->draw = gtk_bin_draw;
+  widget_class->expose_event = gtk_bin_expose;
+
+  container_class->add = gtk_bin_add;
+  container_class->remove = gtk_bin_remove;
+  container_class->foreach = gtk_bin_foreach;
+}
+
+static void
+gtk_bin_init (GtkBin *bin)
+{
+  GTK_WIDGET_SET_FLAGS (bin, GTK_NO_WINDOW);
+
+  bin->child = NULL;
+}
+
+
+static void
+gtk_bin_destroy (GtkObject *object)
+{
+  GtkBin *bin;
+
+  g_return_if_fail (object != NULL);
+  g_return_if_fail (GTK_IS_BIN (object));
+
+  bin = GTK_BIN (object);
+
+  if (bin->child)
+    {
+      bin->child->parent = NULL;
+      gtk_object_unref (GTK_OBJECT (bin->child));
+      gtk_widget_destroy (bin->child);
+    }
+
+  if (GTK_OBJECT_CLASS (parent_class)->destroy)
+    (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
+}
+
+static void
+gtk_bin_map (GtkWidget *widget)
+{
+  GtkBin *bin;
+
+  g_return_if_fail (widget != NULL);
+  g_return_if_fail (GTK_IS_BIN (widget));
+
+  GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
+  bin = GTK_BIN (widget);
+
+  if (!GTK_WIDGET_NO_WINDOW (widget))
+    gdk_window_show (widget->window);
+  else
+    gtk_widget_queue_draw (widget);
+
+  if (bin->child &&
+      GTK_WIDGET_VISIBLE (bin->child) &&
+      !GTK_WIDGET_MAPPED (bin->child))
+    gtk_widget_map (bin->child);
+}
+
+static void
+gtk_bin_unmap (GtkWidget *widget)
+{
+  GtkBin *bin;
+
+  g_return_if_fail (widget != NULL);
+  g_return_if_fail (GTK_IS_BIN (widget));
+
+  GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
+  bin = GTK_BIN (widget);
+
+  if (GTK_WIDGET_NO_WINDOW (widget))
+    gdk_window_clear_area (widget->window,
+			   widget->allocation.x,
+			   widget->allocation.y,
+			   widget->allocation.width,
+			   widget->allocation.height);
+  else
+    gdk_window_hide (widget->window);
+
+  if (bin->child &&
+      GTK_WIDGET_VISIBLE (bin->child) &&
+      GTK_WIDGET_MAPPED (bin->child))
+    gtk_widget_unmap (bin->child);
+}
+
+static void
+gtk_bin_draw (GtkWidget    *widget,
+	      GdkRectangle *area)
+{
+  GtkBin *bin;
+  GdkRectangle child_area;
+
+  g_return_if_fail (widget != NULL);
+  g_return_if_fail (GTK_IS_BIN (widget));
+
+  if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_MAPPED (widget))
+    {
+      bin = GTK_BIN (widget);
+
+      if (bin->child &&
+	  gtk_widget_intersect (bin->child, area, &child_area))
+        gtk_widget_draw (bin->child, &child_area);
+    }
+}
+
+static gint
+gtk_bin_expose (GtkWidget      *widget,
+		GdkEventExpose *event)
+{
+  GtkBin *bin;
+  GdkEventExpose child_event;
+
+  g_return_val_if_fail (widget != NULL, FALSE);
+  g_return_val_if_fail (GTK_IS_BIN (widget), FALSE);
+  g_return_val_if_fail (event != NULL, FALSE);
+
+  if (GTK_WIDGET_DRAWABLE (widget))
+    {
+      bin = GTK_BIN (widget);
+
+      child_event = *event;
+      if (bin->child &&
+	  GTK_WIDGET_NO_WINDOW (bin->child) &&
+	  gtk_widget_intersect (bin->child, &event->area, &child_event.area))
+	gtk_widget_event (bin->child, (GdkEvent*) &child_event);
+    }
+
+  return FALSE;
+}
+
+
+static void
+gtk_bin_add (GtkContainer *container,
+	     GtkWidget    *widget)
+{
+  GtkBin *bin;
+
+  g_return_if_fail (container != NULL);
+  g_return_if_fail (GTK_IS_BIN (container));
+  g_return_if_fail (widget != NULL);
+
+  bin = GTK_BIN (container);
+
+  if (!bin->child)
+    {
+      gtk_widget_set_parent (widget, GTK_WIDGET (container));
+
+      if (GTK_WIDGET_VISIBLE (widget->parent))
+	{
+	  if (GTK_WIDGET_REALIZED (widget->parent) &&
+	      !GTK_WIDGET_REALIZED (widget))
+	    gtk_widget_realize (widget);
+	  
+	  if (GTK_WIDGET_MAPPED (widget->parent) &&
+	      !GTK_WIDGET_MAPPED (widget))
+	    gtk_widget_map (widget);
+	}
+
+      bin->child = widget;
+
+      if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (container))
+        gtk_widget_queue_resize (widget);
+    }
+}
+
+static void
+gtk_bin_remove (GtkContainer *container,
+		GtkWidget    *widget)
+{
+  GtkBin *bin;
+
+  g_return_if_fail (container != NULL);
+  g_return_if_fail (GTK_IS_BIN (container));
+  g_return_if_fail (widget != NULL);
+
+  bin = GTK_BIN (container);
+
+  if (bin->child == widget)
+    {
+      gtk_widget_unparent (widget);
+
+      bin->child = NULL;
+
+      if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (container))
+        gtk_widget_queue_resize (GTK_WIDGET (container));
+    }
+}
+
+static void
+gtk_bin_foreach (GtkContainer *container,
+		 GtkCallback   callback,
+		 gpointer      callback_data)
+{
+  GtkBin *bin;
+
+  g_return_if_fail (container != NULL);
+  g_return_if_fail (GTK_IS_BIN (container));
+  g_return_if_fail (callback != NULL);
+
+  bin = GTK_BIN (container);
+
+  if (bin->child)
+    (* callback) (bin->child, callback_data);
+}