454 lines
10 KiB
C
454 lines
10 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "gtkbox.h"
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static void gtk_box_class_init (GtkBoxClass *klass);
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static void gtk_box_init (GtkBox *box);
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static void gtk_box_destroy (GtkObject *object);
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static void gtk_box_map (GtkWidget *widget);
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static void gtk_box_unmap (GtkWidget *widget);
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static void gtk_box_draw (GtkWidget *widget,
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GdkRectangle *area);
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static gint gtk_box_expose (GtkWidget *widget,
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GdkEventExpose *event);
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static void gtk_box_add (GtkContainer *container,
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GtkWidget *widget);
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static void gtk_box_remove (GtkContainer *container,
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GtkWidget *widget);
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static void gtk_box_foreach (GtkContainer *container,
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GtkCallback callback,
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gpointer callback_data);
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static GtkContainerClass *parent_class = NULL;
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guint
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gtk_box_get_type ()
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{
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static guint box_type = 0;
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if (!box_type)
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{
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GtkTypeInfo box_info =
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{
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"GtkBox",
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sizeof (GtkBox),
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sizeof (GtkBoxClass),
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(GtkClassInitFunc) gtk_box_class_init,
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(GtkObjectInitFunc) gtk_box_init,
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(GtkArgFunc) NULL,
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};
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box_type = gtk_type_unique (gtk_container_get_type (), &box_info);
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}
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return box_type;
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}
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static void
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gtk_box_class_init (GtkBoxClass *class)
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{
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GtkObjectClass *object_class;
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GtkWidgetClass *widget_class;
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GtkContainerClass *container_class;
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object_class = (GtkObjectClass*) class;
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widget_class = (GtkWidgetClass*) class;
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container_class = (GtkContainerClass*) class;
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parent_class = gtk_type_class (gtk_container_get_type ());
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object_class->destroy = gtk_box_destroy;
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widget_class->map = gtk_box_map;
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widget_class->unmap = gtk_box_unmap;
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widget_class->draw = gtk_box_draw;
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widget_class->expose_event = gtk_box_expose;
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container_class->add = gtk_box_add;
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container_class->remove = gtk_box_remove;
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container_class->foreach = gtk_box_foreach;
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}
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static void
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gtk_box_init (GtkBox *box)
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{
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GTK_WIDGET_SET_FLAGS (box, GTK_NO_WINDOW | GTK_BASIC);
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box->children = NULL;
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box->spacing = 0;
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box->homogeneous = FALSE;
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}
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void
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gtk_box_pack_start (GtkBox *box,
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GtkWidget *child,
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gint expand,
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gint fill,
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gint padding)
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{
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GtkBoxChild *child_info;
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g_return_if_fail (box != NULL);
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g_return_if_fail (GTK_IS_BOX (box));
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g_return_if_fail (child != NULL);
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child_info = g_new (GtkBoxChild, 1);
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child_info->widget = child;
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child_info->padding = padding;
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child_info->expand = expand ? TRUE : FALSE;
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child_info->fill = fill ? TRUE : FALSE;
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child_info->pack = GTK_PACK_START;
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box->children = g_list_append (box->children, child_info);
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gtk_widget_set_parent (child, GTK_WIDGET (box));
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if (GTK_WIDGET_VISIBLE (GTK_WIDGET (box)))
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{
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if (GTK_WIDGET_REALIZED (GTK_WIDGET (box)) &&
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!GTK_WIDGET_REALIZED (child))
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gtk_widget_realize (child);
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if (GTK_WIDGET_MAPPED (GTK_WIDGET (box)) &&
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!GTK_WIDGET_MAPPED (child))
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gtk_widget_map (child);
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}
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if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (box))
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gtk_widget_queue_resize (child);
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}
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void
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gtk_box_pack_end (GtkBox *box,
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GtkWidget *child,
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gint expand,
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gint fill,
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gint padding)
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{
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GtkBoxChild *child_info;
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g_return_if_fail (box != NULL);
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g_return_if_fail (GTK_IS_BOX (box));
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g_return_if_fail (child != NULL);
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child_info = g_new (GtkBoxChild, 1);
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child_info->widget = child;
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child_info->padding = padding;
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child_info->expand = expand ? TRUE : FALSE;
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child_info->fill = fill ? TRUE : FALSE;
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child_info->pack = GTK_PACK_END;
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box->children = g_list_append (box->children, child_info);
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gtk_widget_set_parent (child, GTK_WIDGET (box));
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if (GTK_WIDGET_VISIBLE (GTK_WIDGET (box)))
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{
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if (GTK_WIDGET_REALIZED (GTK_WIDGET (box)) &&
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!GTK_WIDGET_REALIZED (child))
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gtk_widget_realize (child);
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if (GTK_WIDGET_MAPPED (GTK_WIDGET (box)) &&
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!GTK_WIDGET_MAPPED (child))
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gtk_widget_map (child);
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}
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if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (box))
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gtk_widget_queue_resize (child);
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}
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void
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gtk_box_pack_start_defaults (GtkBox *box,
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GtkWidget *child)
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{
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g_return_if_fail (box != NULL);
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g_return_if_fail (GTK_IS_BOX (box));
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g_return_if_fail (child != NULL);
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gtk_box_pack_start (box, child, TRUE, TRUE, 0);
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}
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void
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gtk_box_pack_end_defaults (GtkBox *box,
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GtkWidget *child)
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{
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g_return_if_fail (box != NULL);
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g_return_if_fail (GTK_IS_BOX (box));
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g_return_if_fail (child != NULL);
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gtk_box_pack_end (box, child, TRUE, TRUE, 0);
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}
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void
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gtk_box_set_homogeneous (GtkBox *box,
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gint homogeneous)
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{
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g_return_if_fail (box != NULL);
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g_return_if_fail (GTK_IS_BOX (box));
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if ((homogeneous ? TRUE : FALSE) != box->homogeneous)
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{
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box->homogeneous = homogeneous ? TRUE : FALSE;
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gtk_widget_queue_resize (GTK_WIDGET (box));
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}
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}
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void
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gtk_box_set_spacing (GtkBox *box,
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gint spacing)
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{
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g_return_if_fail (box != NULL);
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g_return_if_fail (GTK_IS_BOX (box));
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if (spacing != box->spacing)
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{
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box->spacing = spacing;
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gtk_widget_queue_resize (GTK_WIDGET (box));
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}
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}
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static void
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gtk_box_destroy (GtkObject *object)
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{
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GtkBox *box;
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GtkBoxChild *child;
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GList *children;
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g_return_if_fail (object != NULL);
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g_return_if_fail (GTK_IS_BOX (object));
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box = GTK_BOX (object);
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children = box->children;
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while (children)
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{
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child = children->data;
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children = children->next;
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child->widget->parent = NULL;
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gtk_object_unref (GTK_OBJECT (child->widget));
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gtk_widget_destroy (child->widget);
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g_free (child);
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}
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g_list_free (box->children);
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if (GTK_OBJECT_CLASS (parent_class)->destroy)
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(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
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}
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static void
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gtk_box_map (GtkWidget *widget)
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{
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GtkBox *box;
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GtkBoxChild *child;
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GList *children;
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_BOX (widget));
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box = GTK_BOX (widget);
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GTK_WIDGET_SET_FLAGS (box, GTK_MAPPED);
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children = box->children;
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while (children)
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{
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child = children->data;
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children = children->next;
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if (GTK_WIDGET_VISIBLE (child->widget) &&
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!GTK_WIDGET_MAPPED (child->widget))
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gtk_widget_map (child->widget);
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}
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}
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static void
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gtk_box_unmap (GtkWidget *widget)
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{
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GtkBox *box;
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GtkBoxChild *child;
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GList *children;
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_BOX (widget));
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box = GTK_BOX (widget);
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GTK_WIDGET_UNSET_FLAGS (box, GTK_MAPPED);
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children = box->children;
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while (children)
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{
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child = children->data;
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children = children->next;
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if (GTK_WIDGET_VISIBLE (child->widget) &&
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GTK_WIDGET_MAPPED (child->widget))
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gtk_widget_unmap (child->widget);
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}
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}
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static void
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gtk_box_draw (GtkWidget *widget,
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GdkRectangle *area)
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{
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GtkBox *box;
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GtkBoxChild *child;
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GdkRectangle child_area;
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GList *children;
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_BOX (widget));
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if (GTK_WIDGET_DRAWABLE (widget))
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{
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box = GTK_BOX (widget);
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children = box->children;
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while (children)
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{
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child = children->data;
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children = children->next;
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if (gtk_widget_intersect (child->widget, area, &child_area))
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gtk_widget_draw (child->widget, &child_area);
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}
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}
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}
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static gint
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gtk_box_expose (GtkWidget *widget,
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GdkEventExpose *event)
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{
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GtkBox *box;
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GtkBoxChild *child;
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GdkEventExpose child_event;
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GList *children;
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g_return_val_if_fail (widget != NULL, FALSE);
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g_return_val_if_fail (GTK_IS_BOX (widget), FALSE);
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g_return_val_if_fail (event != NULL, FALSE);
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if (GTK_WIDGET_DRAWABLE (widget))
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{
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box = GTK_BOX (widget);
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child_event = *event;
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children = box->children;
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while (children)
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{
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child = children->data;
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children = children->next;
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if (GTK_WIDGET_NO_WINDOW (child->widget) &&
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gtk_widget_intersect (child->widget, &event->area, &child_event.area))
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gtk_widget_event (child->widget, (GdkEvent*) &child_event);
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}
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}
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return FALSE;
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}
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static void
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gtk_box_add (GtkContainer *container,
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GtkWidget *widget)
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{
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g_return_if_fail (container != NULL);
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g_return_if_fail (GTK_IS_BOX (container));
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g_return_if_fail (widget != NULL);
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gtk_box_pack_start_defaults (GTK_BOX (container), widget);
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}
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static void
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gtk_box_remove (GtkContainer *container,
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GtkWidget *widget)
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{
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GtkBox *box;
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GtkBoxChild *child;
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GList *children;
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g_return_if_fail (container != NULL);
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g_return_if_fail (GTK_IS_BOX (container));
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g_return_if_fail (widget != NULL);
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box = GTK_BOX (container);
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children = box->children;
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while (children)
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{
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child = children->data;
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if (child->widget == widget)
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{
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gtk_widget_unparent (widget);
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box->children = g_list_remove_link (box->children, children);
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g_list_free (children);
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g_free (child);
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if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (container))
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gtk_widget_queue_resize (GTK_WIDGET (container));
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break;
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}
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children = children->next;
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}
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}
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static void
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gtk_box_foreach (GtkContainer *container,
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GtkCallback callback,
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gpointer callback_data)
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{
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GtkBox *box;
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GtkBoxChild *child;
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GList *children;
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g_return_if_fail (container != NULL);
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g_return_if_fail (GTK_IS_BOX (container));
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g_return_if_fail (callback != NULL);
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box = GTK_BOX (container);
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children = box->children;
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while (children)
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{
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child = children->data;
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children = children->next;
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if (child->pack == GTK_PACK_START)
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(* callback) (child->widget, callback_data);
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}
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children = g_list_last (box->children);
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while (children)
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{
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child = children->data;
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children = children->prev;
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if (child->pack == GTK_PACK_END)
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(* callback) (child->widget, callback_data);
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}
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}
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