moving from https://github.com/perberos/mate-desktop-environment

1 files changed, 225 insertions, 0 deletions

diff --git a/eel/eel-gtk-container.c b/eel/eel-gtk-container.c
new file mode 100644
index 00000000..033579c5
--- /dev/null
+++ b/eel/eel-gtk-container.c
@@ -0,0 +1,225 @@
+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
+
+/* eel-gtk-container.c - Functions to simplify the implementations of
+  			 GtkContainer widgets.
+
+   Copyright (C) 2001 Ramiro Estrugo.
+
+   The Mate 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.
+
+   The Mate 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 the Mate Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.
+
+   Authors: Ramiro Estrugo <[email protected]>
+*/
+
+#include <config.h>
+#include "eel-gtk-container.h"
+#include "eel-art-extensions.h"
+
+/**
+ * eel_gtk_container_child_expose_event:
+ *
+ * @container: A GtkContainer widget.
+ * @child: A child of @container or NULL;
+ * @event: The expose event.
+ *
+ * Forward an expose event to a child if needed.  It is valid to give a NULL @child.
+ * In that case this function is a noop.  Proper clipping is done to ensure that the @child
+ * does indeed need to be forwarded the exposure event.  Finally, the forwarding
+ * only occurs if the child is a NO_WINDOW widget.  Of course, it is valid to feed
+ * non NO_WINDOW widgets to this function, in which case this function is a noop.
+ */
+void
+eel_gtk_container_child_expose_event (GtkContainer *container,
+                                      GtkWidget *child,
+                                      GdkEventExpose *event)
+{
+    g_return_if_fail (GTK_IS_CONTAINER (container));
+
+    if (child == NULL)
+    {
+        return;
+    }
+
+    g_return_if_fail (GTK_IS_WIDGET (child));
+
+    gtk_container_propagate_expose (container, child, event);
+}
+
+/**
+ * eel_gtk_container_child_map:
+ *
+ * @container: A GtkContainer widget.
+ * @child: A child of @container or NULL;
+ *
+ * Map a child if needed.  This is usually called from the "GtkWidget::map"
+ * method of the @container widget.  If @child is NULL, then this function is a noop.
+ */
+void
+eel_gtk_container_child_map (GtkContainer *container,
+                             GtkWidget *child)
+{
+    g_return_if_fail (GTK_IS_CONTAINER (container));
+
+    if (child == NULL)
+    {
+        return;
+    }
+
+    g_return_if_fail (gtk_widget_get_parent (child) == GTK_WIDGET (container));
+
+    if (gtk_widget_get_visible (child) && !gtk_widget_get_mapped (child))
+    {
+        gtk_widget_map (child);
+    }
+}
+
+/**
+ * eel_gtk_container_child_unmap:
+ *
+ * @container: A GtkContainer widget.
+ * @child: A child of @container or NULL;
+ *
+ * Unmap a child if needed.  This is usually called from the "GtkWidget::unmap"
+ * method of the @container widget.  If @child is NULL, then this function is a noop.
+ */
+void
+eel_gtk_container_child_unmap (GtkContainer *container,
+                               GtkWidget *child)
+{
+    g_return_if_fail (GTK_IS_CONTAINER (container));
+
+    if (child == NULL)
+    {
+        return;
+    }
+
+    g_return_if_fail (gtk_widget_get_parent (child) == GTK_WIDGET (container));
+
+    if (gtk_widget_get_visible (child) && gtk_widget_get_mapped (child))
+    {
+        gtk_widget_unmap (child);
+    }
+}
+
+/**
+ * eel_gtk_container_child_add:
+ *
+ * @container: A GtkContainer widget.
+ * @child: A non NULL unparented child.
+ *
+ * Add a @child to a @container.  The @child is realized, mapped
+ * and resized if needed.  This is usually called from the "GtkContainer::add"
+ * method of the @container.  The @child cannot be NULL.
+ */
+void
+eel_gtk_container_child_add (GtkContainer *container,
+                             GtkWidget *child)
+{
+    GtkWidget *widget;
+
+    g_return_if_fail (GTK_IS_CONTAINER (container));
+    g_return_if_fail (GTK_IS_WIDGET (child));
+
+    widget = GTK_WIDGET (container);
+
+    gtk_widget_set_parent (child, widget);
+
+    if (gtk_widget_get_realized (widget))
+    {
+        gtk_widget_realize (child);
+    }
+
+    if (gtk_widget_get_mapped (widget)
+            && gtk_widget_get_visible (child))
+    {
+        if (gtk_widget_get_mapped (widget))
+        {
+            gtk_widget_map (child);
+        }
+
+        gtk_widget_queue_resize (child);
+    }
+}
+
+/**
+ * eel_gtk_container_child_remove:
+ *
+ * @container: A GtkContainer widget.
+ * @child: A non NULL child of @container.
+ *
+ * Remove @child from @container.  The @container is resized if needed.
+ * This is usually called from the "GtkContainer::remove" method of the
+ * @container.  The child cannot be NULL.
+ */
+void
+eel_gtk_container_child_remove (GtkContainer *container,
+                                GtkWidget *child)
+{
+    gboolean child_was_visible;
+
+    g_return_if_fail (GTK_IS_CONTAINER (container));
+    g_return_if_fail (GTK_IS_WIDGET (child));
+    g_return_if_fail (gtk_widget_get_parent (child) == GTK_WIDGET (container));
+
+    child_was_visible = gtk_widget_get_visible (child);
+
+    gtk_widget_unparent (child);
+
+    if (child_was_visible)
+    {
+        gtk_widget_queue_resize (GTK_WIDGET (container));
+    }
+}
+
+/**
+ * eel_gtk_container_child_size_allocate:
+ *
+ * @container: A GtkContainer widget.
+ * @child: A child of @container or NULL;
+ *
+ * Invoke the "GtkWidget::size_allocate" method of @child.
+ * This function is usually called from the "GtkWidget::size_allocate"
+ * method of @container.  The child can be NULL, in which case this
+ * function is a noop.
+ */
+void
+eel_gtk_container_child_size_allocate (GtkContainer *container,
+                                       GtkWidget *child,
+                                       EelIRect child_geometry)
+{
+    GtkAllocation child_allocation;
+
+    g_return_if_fail (GTK_IS_CONTAINER (container));
+
+    if (child == NULL)
+    {
+        return;
+    }
+
+    g_return_if_fail (GTK_IS_WIDGET (child));
+    g_return_if_fail (gtk_widget_get_parent (child) == GTK_WIDGET (container));
+
+    if (eel_irect_is_empty (&child_geometry))
+    {
+        return;
+    }
+
+    child_allocation.x = child_geometry.x0;
+    child_allocation.y = child_geometry.y0;
+    child_allocation.width = eel_irect_get_width (child_geometry);
+    child_allocation.height = eel_irect_get_height (child_geometry);
+
+    gtk_widget_size_allocate (child, &child_allocation);
+}