diff options
Diffstat (limited to 'gtk/gtkbox.c')
| -rw-r--r-- | gtk/gtkbox.c | 453 |
1 files changed, 453 insertions, 0 deletions
diff --git a/gtk/gtkbox.c b/gtk/gtkbox.c new file mode 100644 index 0000000000..dfb2fed087 --- /dev/null +++ b/gtk/gtkbox.c @@ -0,0 +1,453 @@ +/* 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 "gtkbox.h" + + +static void gtk_box_class_init (GtkBoxClass *klass); +static void gtk_box_init (GtkBox *box); +static void gtk_box_destroy (GtkObject *object); +static void gtk_box_map (GtkWidget *widget); +static void gtk_box_unmap (GtkWidget *widget); +static void gtk_box_draw (GtkWidget *widget, + GdkRectangle *area); +static gint gtk_box_expose (GtkWidget *widget, + GdkEventExpose *event); +static void gtk_box_add (GtkContainer *container, + GtkWidget *widget); +static void gtk_box_remove (GtkContainer *container, + GtkWidget *widget); +static void gtk_box_foreach (GtkContainer *container, + GtkCallback callback, + gpointer callback_data); + + +static GtkContainerClass *parent_class = NULL; + + +guint +gtk_box_get_type () +{ + static guint box_type = 0; + + if (!box_type) + { + GtkTypeInfo box_info = + { + "GtkBox", + sizeof (GtkBox), + sizeof (GtkBoxClass), + (GtkClassInitFunc) gtk_box_class_init, + (GtkObjectInitFunc) gtk_box_init, + (GtkArgFunc) NULL, + }; + + box_type = gtk_type_unique (gtk_container_get_type (), &box_info); + } + + return box_type; +} + +static void +gtk_box_class_init (GtkBoxClass *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_box_destroy; + + widget_class->map = gtk_box_map; + widget_class->unmap = gtk_box_unmap; + widget_class->draw = gtk_box_draw; + widget_class->expose_event = gtk_box_expose; + + container_class->add = gtk_box_add; + container_class->remove = gtk_box_remove; + container_class->foreach = gtk_box_foreach; +} + +static void +gtk_box_init (GtkBox *box) +{ + GTK_WIDGET_SET_FLAGS (box, GTK_NO_WINDOW | GTK_BASIC); + + box->children = NULL; + box->spacing = 0; + box->homogeneous = FALSE; +} + +void +gtk_box_pack_start (GtkBox *box, + GtkWidget *child, + gint expand, + gint fill, + gint padding) +{ + GtkBoxChild *child_info; + + g_return_if_fail (box != NULL); + g_return_if_fail (GTK_IS_BOX (box)); + g_return_if_fail (child != NULL); + + child_info = g_new (GtkBoxChild, 1); + child_info->widget = child; + child_info->padding = padding; + child_info->expand = expand ? TRUE : FALSE; + child_info->fill = fill ? TRUE : FALSE; + child_info->pack = GTK_PACK_START; + + box->children = g_list_append (box->children, child_info); + + gtk_widget_set_parent (child, GTK_WIDGET (box)); + + if (GTK_WIDGET_VISIBLE (GTK_WIDGET (box))) + { + if (GTK_WIDGET_REALIZED (GTK_WIDGET (box)) && + !GTK_WIDGET_REALIZED (child)) + gtk_widget_realize (child); + + if (GTK_WIDGET_MAPPED (GTK_WIDGET (box)) && + !GTK_WIDGET_MAPPED (child)) + gtk_widget_map (child); + } + + if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (box)) + gtk_widget_queue_resize (child); +} + +void +gtk_box_pack_end (GtkBox *box, + GtkWidget *child, + gint expand, + gint fill, + gint padding) +{ + GtkBoxChild *child_info; + + g_return_if_fail (box != NULL); + g_return_if_fail (GTK_IS_BOX (box)); + g_return_if_fail (child != NULL); + + child_info = g_new (GtkBoxChild, 1); + child_info->widget = child; + child_info->padding = padding; + child_info->expand = expand ? TRUE : FALSE; + child_info->fill = fill ? TRUE : FALSE; + child_info->pack = GTK_PACK_END; + + box->children = g_list_append (box->children, child_info); + + gtk_widget_set_parent (child, GTK_WIDGET (box)); + + if (GTK_WIDGET_VISIBLE (GTK_WIDGET (box))) + { + if (GTK_WIDGET_REALIZED (GTK_WIDGET (box)) && + !GTK_WIDGET_REALIZED (child)) + gtk_widget_realize (child); + + if (GTK_WIDGET_MAPPED (GTK_WIDGET (box)) && + !GTK_WIDGET_MAPPED (child)) + gtk_widget_map (child); + } + + if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (box)) + gtk_widget_queue_resize (child); +} + +void +gtk_box_pack_start_defaults (GtkBox *box, + GtkWidget *child) +{ + g_return_if_fail (box != NULL); + g_return_if_fail (GTK_IS_BOX (box)); + g_return_if_fail (child != NULL); + + gtk_box_pack_start (box, child, TRUE, TRUE, 0); +} + +void +gtk_box_pack_end_defaults (GtkBox *box, + GtkWidget *child) +{ + g_return_if_fail (box != NULL); + g_return_if_fail (GTK_IS_BOX (box)); + g_return_if_fail (child != NULL); + + gtk_box_pack_end (box, child, TRUE, TRUE, 0); +} + +void +gtk_box_set_homogeneous (GtkBox *box, + gint homogeneous) +{ + g_return_if_fail (box != NULL); + g_return_if_fail (GTK_IS_BOX (box)); + + if ((homogeneous ? TRUE : FALSE) != box->homogeneous) + { + box->homogeneous = homogeneous ? TRUE : FALSE; + gtk_widget_queue_resize (GTK_WIDGET (box)); + } +} + +void +gtk_box_set_spacing (GtkBox *box, + gint spacing) +{ + g_return_if_fail (box != NULL); + g_return_if_fail (GTK_IS_BOX (box)); + + if (spacing != box->spacing) + { + box->spacing = spacing; + gtk_widget_queue_resize (GTK_WIDGET (box)); + } +} + + +static void +gtk_box_destroy (GtkObject *object) +{ + GtkBox *box; + GtkBoxChild *child; + GList *children; + + g_return_if_fail (object != NULL); + g_return_if_fail (GTK_IS_BOX (object)); + + box = GTK_BOX (object); + + children = box->children; + while (children) + { + child = children->data; + children = children->next; + + child->widget->parent = NULL; + gtk_object_unref (GTK_OBJECT (child->widget)); + gtk_widget_destroy (child->widget); + g_free (child); + } + + g_list_free (box->children); + + if (GTK_OBJECT_CLASS (parent_class)->destroy) + (* GTK_OBJECT_CLASS (parent_class)->destroy) (object); +} + +static void +gtk_box_map (GtkWidget *widget) +{ + GtkBox *box; + GtkBoxChild *child; + GList *children; + + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_BOX (widget)); + + box = GTK_BOX (widget); + GTK_WIDGET_SET_FLAGS (box, GTK_MAPPED); + + children = box->children; + while (children) + { + child = children->data; + children = children->next; + + if (GTK_WIDGET_VISIBLE (child->widget) && + !GTK_WIDGET_MAPPED (child->widget)) + gtk_widget_map (child->widget); + } +} + +static void +gtk_box_unmap (GtkWidget *widget) +{ + GtkBox *box; + GtkBoxChild *child; + GList *children; + + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_BOX (widget)); + + box = GTK_BOX (widget); + GTK_WIDGET_UNSET_FLAGS (box, GTK_MAPPED); + + children = box->children; + while (children) + { + child = children->data; + children = children->next; + + if (GTK_WIDGET_VISIBLE (child->widget) && + GTK_WIDGET_MAPPED (child->widget)) + gtk_widget_unmap (child->widget); + } +} + +static void +gtk_box_draw (GtkWidget *widget, + GdkRectangle *area) +{ + GtkBox *box; + GtkBoxChild *child; + GdkRectangle child_area; + GList *children; + + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_BOX (widget)); + + if (GTK_WIDGET_DRAWABLE (widget)) + { + box = GTK_BOX (widget); + + children = box->children; + while (children) + { + child = children->data; + children = children->next; + + if (gtk_widget_intersect (child->widget, area, &child_area)) + gtk_widget_draw (child->widget, &child_area); + } + } +} + +static gint +gtk_box_expose (GtkWidget *widget, + GdkEventExpose *event) +{ + GtkBox *box; + GtkBoxChild *child; + GdkEventExpose child_event; + GList *children; + + g_return_val_if_fail (widget != NULL, FALSE); + g_return_val_if_fail (GTK_IS_BOX (widget), FALSE); + g_return_val_if_fail (event != NULL, FALSE); + + if (GTK_WIDGET_DRAWABLE (widget)) + { + box = GTK_BOX (widget); + + child_event = *event; + + children = box->children; + while (children) + { + child = children->data; + children = children->next; + + if (GTK_WIDGET_NO_WINDOW (child->widget) && + gtk_widget_intersect (child->widget, &event->area, &child_event.area)) + gtk_widget_event (child->widget, (GdkEvent*) &child_event); + } + } + + return FALSE; +} + +static void +gtk_box_add (GtkContainer *container, + GtkWidget *widget) +{ + g_return_if_fail (container != NULL); + g_return_if_fail (GTK_IS_BOX (container)); + g_return_if_fail (widget != NULL); + + gtk_box_pack_start_defaults (GTK_BOX (container), widget); +} + +static void +gtk_box_remove (GtkContainer *container, + GtkWidget *widget) +{ + GtkBox *box; + GtkBoxChild *child; + GList *children; + + g_return_if_fail (container != NULL); + g_return_if_fail (GTK_IS_BOX (container)); + g_return_if_fail (widget != NULL); + + box = GTK_BOX (container); + + children = box->children; + while (children) + { + child = children->data; + + if (child->widget == widget) + { + gtk_widget_unparent (widget); + + box->children = g_list_remove_link (box->children, children); + g_list_free (children); + g_free (child); + + if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (container)) + gtk_widget_queue_resize (GTK_WIDGET (container)); + + break; + } + + children = children->next; + } +} + +static void +gtk_box_foreach (GtkContainer *container, + GtkCallback callback, + gpointer callback_data) +{ + GtkBox *box; + GtkBoxChild *child; + GList *children; + + g_return_if_fail (container != NULL); + g_return_if_fail (GTK_IS_BOX (container)); + g_return_if_fail (callback != NULL); + + box = GTK_BOX (container); + + children = box->children; + while (children) + { + child = children->data; + children = children->next; + + if (child->pack == GTK_PACK_START) + (* callback) (child->widget, callback_data); + } + + children = g_list_last (box->children); + while (children) + { + child = children->data; + children = children->prev; + + if (child->pack == GTK_PACK_END) + (* callback) (child->widget, callback_data); + } +} |