526 lines
13 KiB
C
526 lines
13 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 "gtkfixed.h"
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static void gtk_fixed_class_init (GtkFixedClass *klass);
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static void gtk_fixed_init (GtkFixed *fixed);
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static void gtk_fixed_destroy (GtkObject *object);
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static void gtk_fixed_map (GtkWidget *widget);
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static void gtk_fixed_unmap (GtkWidget *widget);
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static void gtk_fixed_realize (GtkWidget *widget);
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static void gtk_fixed_unrealize (GtkWidget *widget);
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static void gtk_fixed_size_request (GtkWidget *widget,
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GtkRequisition *requisition);
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static void gtk_fixed_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation);
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static void gtk_fixed_paint (GtkWidget *widget,
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GdkRectangle *area);
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static void gtk_fixed_draw (GtkWidget *widget,
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GdkRectangle *area);
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static gint gtk_fixed_expose (GtkWidget *widget,
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GdkEventExpose *event);
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static void gtk_fixed_add (GtkContainer *container,
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GtkWidget *widget);
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static void gtk_fixed_remove (GtkContainer *container,
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GtkWidget *widget);
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static void gtk_fixed_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_fixed_get_type ()
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{
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static guint fixed_type = 0;
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if (!fixed_type)
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{
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GtkTypeInfo fixed_info =
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{
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"GtkFixed",
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sizeof (GtkFixed),
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sizeof (GtkFixedClass),
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(GtkClassInitFunc) gtk_fixed_class_init,
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(GtkObjectInitFunc) gtk_fixed_init,
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(GtkArgFunc) NULL,
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};
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fixed_type = gtk_type_unique (gtk_container_get_type (), &fixed_info);
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}
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return fixed_type;
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}
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static void
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gtk_fixed_class_init (GtkFixedClass *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_fixed_destroy;
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widget_class->map = gtk_fixed_map;
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widget_class->unmap = gtk_fixed_unmap;
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widget_class->realize = gtk_fixed_realize;
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widget_class->unrealize = gtk_fixed_unrealize;
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widget_class->size_request = gtk_fixed_size_request;
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widget_class->size_allocate = gtk_fixed_size_allocate;
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widget_class->draw = gtk_fixed_draw;
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widget_class->expose_event = gtk_fixed_expose;
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container_class->add = gtk_fixed_add;
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container_class->remove = gtk_fixed_remove;
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container_class->foreach = gtk_fixed_foreach;
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}
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static void
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gtk_fixed_init (GtkFixed *fixed)
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{
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GTK_WIDGET_UNSET_FLAGS (fixed, GTK_NO_WINDOW);
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GTK_WIDGET_SET_FLAGS (fixed, GTK_BASIC);
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fixed->children = NULL;
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}
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GtkWidget*
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gtk_fixed_new ()
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{
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GtkFixed *fixed;
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fixed = gtk_type_new (gtk_fixed_get_type ());
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return GTK_WIDGET (fixed);
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}
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void
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gtk_fixed_put (GtkFixed *fixed,
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GtkWidget *widget,
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gint16 x,
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gint16 y)
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{
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GtkFixedChild *child_info;
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g_return_if_fail (fixed != NULL);
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g_return_if_fail (GTK_IS_FIXED (fixed));
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g_return_if_fail (widget != NULL);
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child_info = g_new (GtkFixedChild, 1);
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child_info->widget = widget;
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child_info->x = x;
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child_info->y = y;
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gtk_widget_set_parent (widget, GTK_WIDGET (fixed));
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fixed->children = g_list_append (fixed->children, child_info);
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if (GTK_WIDGET_REALIZED (fixed) && !GTK_WIDGET_REALIZED (widget))
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gtk_widget_realize (widget);
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if (GTK_WIDGET_MAPPED (fixed) && !GTK_WIDGET_MAPPED (widget))
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gtk_widget_map (widget);
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if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (fixed))
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gtk_widget_queue_resize (GTK_WIDGET (fixed));
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}
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void
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gtk_fixed_move (GtkFixed *fixed,
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GtkWidget *widget,
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gint16 x,
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gint16 y)
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{
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GtkFixedChild *child;
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GList *children;
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g_return_if_fail (fixed != NULL);
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g_return_if_fail (GTK_IS_FIXED (fixed));
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g_return_if_fail (widget != NULL);
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children = fixed->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->widget == widget)
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{
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child->x = x;
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child->y = y;
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if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (fixed))
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gtk_widget_queue_resize (GTK_WIDGET (fixed));
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break;
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}
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}
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}
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static void
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gtk_fixed_destroy (GtkObject *object)
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{
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GtkFixed *fixed;
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GtkFixedChild *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_FIXED (object));
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fixed = GTK_FIXED (object);
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children = fixed->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 (fixed->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_fixed_map (GtkWidget *widget)
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{
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GtkFixed *fixed;
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GtkFixedChild *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_FIXED (widget));
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GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
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fixed = GTK_FIXED (widget);
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gdk_window_show (widget->window);
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children = fixed->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_fixed_unmap (GtkWidget *widget)
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{
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_FIXED (widget));
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GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
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}
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static void
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gtk_fixed_realize (GtkWidget *widget)
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{
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GdkWindowAttr attributes;
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gint attributes_mask;
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_FIXED (widget));
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GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
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attributes.window_type = GDK_WINDOW_CHILD;
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attributes.x = widget->allocation.x;
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attributes.y = widget->allocation.y;
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attributes.width = widget->allocation.width;
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attributes.height = widget->allocation.height;
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attributes.wclass = GDK_INPUT_OUTPUT;
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attributes.visual = gtk_widget_get_visual (widget);
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attributes.colormap = gtk_widget_get_colormap (widget);
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attributes.event_mask = gtk_widget_get_events (widget);
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attributes.event_mask |= GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK;
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attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
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widget->window = gdk_window_new (widget->parent->window, &attributes,
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attributes_mask);
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gdk_window_set_user_data (widget->window, widget);
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widget->style = gtk_style_attach (widget->style, widget->window);
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gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
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}
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static void
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gtk_fixed_unrealize (GtkWidget *widget)
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{
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_FIXED (widget));
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GTK_WIDGET_UNSET_FLAGS (widget, GTK_REALIZED | GTK_MAPPED);
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gtk_style_detach (widget->style);
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gdk_window_destroy (widget->window);
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widget->window = NULL;
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}
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static void
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gtk_fixed_size_request (GtkWidget *widget,
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GtkRequisition *requisition)
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{
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GtkFixed *fixed;
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GtkFixedChild *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_FIXED (widget));
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g_return_if_fail (requisition != NULL);
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fixed = GTK_FIXED (widget);
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requisition->width = 0;
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requisition->height = 0;
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children = fixed->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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{
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gtk_widget_size_request (child->widget, &child->widget->requisition);
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requisition->height = MAX (requisition->height,
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child->y +
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child->widget->requisition.height);
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requisition->width = MAX (requisition->width,
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child->x +
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child->widget->requisition.width);
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}
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}
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requisition->height += GTK_CONTAINER (fixed)->border_width * 2;
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requisition->width += GTK_CONTAINER (fixed)->border_width * 2;
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}
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static void
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gtk_fixed_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation)
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{
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GtkFixed *fixed;
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GtkFixedChild *child;
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GtkAllocation child_allocation;
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GList *children;
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guint16 border_width;
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_FIXED(widget));
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g_return_if_fail (allocation != NULL);
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fixed = GTK_FIXED (widget);
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widget->allocation = *allocation;
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if (GTK_WIDGET_REALIZED (widget))
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gdk_window_move_resize (widget->window,
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allocation->x,
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allocation->y,
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allocation->width,
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allocation->height);
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border_width = GTK_CONTAINER (fixed)->border_width;
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children = fixed->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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{
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child_allocation.x = child->x + border_width;
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child_allocation.y = child->y + border_width;
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child_allocation.width = child->widget->requisition.width;
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child_allocation.height = child->widget->requisition.height;
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gtk_widget_size_allocate (child->widget, &child_allocation);
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}
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}
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}
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static void
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gtk_fixed_paint (GtkWidget *widget,
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GdkRectangle *area)
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{
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_FIXED (widget));
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g_return_if_fail (area != NULL);
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if (GTK_WIDGET_DRAWABLE (widget))
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gdk_window_clear_area (widget->window,
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area->x, area->y,
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area->width, area->height);
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}
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static void
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gtk_fixed_draw (GtkWidget *widget,
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GdkRectangle *area)
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{
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GtkFixed *fixed;
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GtkFixedChild *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_FIXED (widget));
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if (GTK_WIDGET_DRAWABLE (widget))
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{
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fixed = GTK_FIXED (widget);
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gtk_fixed_paint (widget, area);
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children = fixed->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_fixed_expose (GtkWidget *widget,
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GdkEventExpose *event)
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{
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GtkFixed *fixed;
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GtkFixedChild *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_FIXED (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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fixed = GTK_FIXED (widget);
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child_event = *event;
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children = fixed->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,
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&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_fixed_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_FIXED (container));
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g_return_if_fail (widget != NULL);
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gtk_fixed_put (GTK_FIXED (container), widget, 0, 0);
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}
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static void
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gtk_fixed_remove (GtkContainer *container,
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GtkWidget *widget)
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{
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GtkFixed *fixed;
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GtkFixedChild *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_FIXED (container));
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g_return_if_fail (widget != NULL);
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fixed = GTK_FIXED (container);
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children = fixed->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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fixed->children = g_list_remove_link (fixed->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_fixed_foreach (GtkContainer *container,
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GtkCallback callback,
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gpointer callback_data)
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{
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GtkFixed *fixed;
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GtkFixedChild *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_FIXED (container));
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g_return_if_fail (callback != NULL);
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fixed = GTK_FIXED (container);
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children = fixed->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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(* callback) (child->widget, callback_data);
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}
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}
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