/* -*- 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 <ramiro@eazel.com> */ #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); }