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-rw-r--r--gtk/gtkbin.c286
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);
+}