502 lines
14 KiB
C
502 lines
14 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 Lesser 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "config.h"
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#include "gtkfixed.h"
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#include "gtkprivate.h"
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#include "gtkintl.h"
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#include "gtkalias.h"
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enum {
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CHILD_PROP_0,
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CHILD_PROP_X,
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CHILD_PROP_Y
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};
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static void gtk_fixed_realize (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_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_forall (GtkContainer *container,
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gboolean include_internals,
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GtkCallback callback,
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gpointer callback_data);
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static GType gtk_fixed_child_type (GtkContainer *container);
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static void gtk_fixed_set_child_property (GtkContainer *container,
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GtkWidget *child,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_fixed_get_child_property (GtkContainer *container,
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GtkWidget *child,
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guint property_id,
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GValue *value,
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GParamSpec *pspec);
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G_DEFINE_TYPE (GtkFixed, gtk_fixed, GTK_TYPE_CONTAINER)
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static void
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gtk_fixed_class_init (GtkFixedClass *class)
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{
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GtkWidgetClass *widget_class;
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GtkContainerClass *container_class;
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widget_class = (GtkWidgetClass*) class;
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container_class = (GtkContainerClass*) class;
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widget_class->realize = gtk_fixed_realize;
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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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container_class->add = gtk_fixed_add;
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container_class->remove = gtk_fixed_remove;
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container_class->forall = gtk_fixed_forall;
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container_class->child_type = gtk_fixed_child_type;
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container_class->set_child_property = gtk_fixed_set_child_property;
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container_class->get_child_property = gtk_fixed_get_child_property;
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gtk_container_class_install_child_property (container_class,
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CHILD_PROP_X,
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g_param_spec_int ("x",
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P_("X position"),
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P_("X position of child widget"),
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G_MININT,
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G_MAXINT,
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0,
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GTK_PARAM_READWRITE));
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gtk_container_class_install_child_property (container_class,
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CHILD_PROP_Y,
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g_param_spec_int ("y",
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P_("Y position"),
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P_("Y position of child widget"),
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G_MININT,
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G_MAXINT,
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0,
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GTK_PARAM_READWRITE));
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}
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static GType
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gtk_fixed_child_type (GtkContainer *container)
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{
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return GTK_TYPE_WIDGET;
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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_SET_FLAGS (fixed, GTK_NO_WINDOW);
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fixed->children = NULL;
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}
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GtkWidget*
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gtk_fixed_new (void)
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{
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return g_object_new (GTK_TYPE_FIXED, NULL);
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}
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static GtkFixedChild*
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get_child (GtkFixed *fixed,
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GtkWidget *widget)
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{
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GList *children;
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children = fixed->children;
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while (children)
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{
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GtkFixedChild *child;
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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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return child;
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}
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return NULL;
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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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gint x,
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gint y)
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{
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GtkFixedChild *child_info;
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g_return_if_fail (GTK_IS_FIXED (fixed));
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g_return_if_fail (GTK_IS_WIDGET (widget));
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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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}
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static void
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gtk_fixed_move_internal (GtkFixed *fixed,
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GtkWidget *widget,
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gboolean change_x,
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gint x,
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gboolean change_y,
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gint y)
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{
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GtkFixedChild *child;
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g_return_if_fail (GTK_IS_FIXED (fixed));
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g_return_if_fail (GTK_IS_WIDGET (widget));
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g_return_if_fail (widget->parent == GTK_WIDGET (fixed));
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child = get_child (fixed, widget);
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g_assert (child);
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gtk_widget_freeze_child_notify (widget);
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if (change_x)
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{
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child->x = x;
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gtk_widget_child_notify (widget, "x");
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}
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if (change_y)
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{
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child->y = y;
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gtk_widget_child_notify (widget, "y");
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}
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gtk_widget_thaw_child_notify (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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gint x,
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gint y)
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{
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gtk_fixed_move_internal (fixed, widget, TRUE, x, TRUE, y);
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}
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static void
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gtk_fixed_set_child_property (GtkContainer *container,
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GtkWidget *child,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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switch (property_id)
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{
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case CHILD_PROP_X:
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gtk_fixed_move_internal (GTK_FIXED (container),
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child,
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TRUE, g_value_get_int (value),
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FALSE, 0);
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break;
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case CHILD_PROP_Y:
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gtk_fixed_move_internal (GTK_FIXED (container),
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child,
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FALSE, 0,
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TRUE, g_value_get_int (value));
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break;
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default:
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GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
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break;
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}
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}
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static void
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gtk_fixed_get_child_property (GtkContainer *container,
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GtkWidget *child,
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guint property_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GtkFixedChild *fixed_child;
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fixed_child = get_child (GTK_FIXED (container), child);
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switch (property_id)
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{
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case CHILD_PROP_X:
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g_value_set_int (value, fixed_child->x);
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break;
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case CHILD_PROP_Y:
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g_value_set_int (value, fixed_child->y);
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break;
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default:
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GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
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break;
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}
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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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if (GTK_WIDGET_NO_WINDOW (widget))
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GTK_WIDGET_CLASS (gtk_fixed_parent_class)->realize (widget);
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else
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{
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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 (gtk_widget_get_parent_window (widget), &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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}
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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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GtkRequisition child_requisition;
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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_requisition);
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requisition->height = MAX (requisition->height,
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child->y +
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child_requisition.height);
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requisition->width = MAX (requisition->width,
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child->x +
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child_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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GtkRequisition child_requisition;
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GList *children;
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guint16 border_width;
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fixed = GTK_FIXED (widget);
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widget->allocation = *allocation;
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if (!GTK_WIDGET_NO_WINDOW (widget))
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{
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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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}
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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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gtk_widget_get_child_requisition (child->widget, &child_requisition);
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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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if (GTK_WIDGET_NO_WINDOW (widget))
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{
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child_allocation.x += widget->allocation.x;
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child_allocation.y += widget->allocation.y;
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}
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child_allocation.width = child_requisition.width;
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child_allocation.height = child_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_add (GtkContainer *container,
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GtkWidget *widget)
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{
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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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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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gboolean was_visible = GTK_WIDGET_VISIBLE (widget);
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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 (was_visible && 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_forall (GtkContainer *container,
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gboolean include_internals,
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GtkCallback callback,
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gpointer callback_data)
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{
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GtkFixed *fixed = GTK_FIXED (container);
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GtkFixedChild *child;
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GList *children;
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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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/**
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* gtk_fixed_set_has_window:
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* @fixed: a #GtkFixed
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* @has_window: %TRUE if a separate window should be created
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*
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* Sets whether a #GtkFixed widget is created with a separate
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* #GdkWindow for @widget->window or not. (By default, it will be
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* created with no separate #GdkWindow). This function must be called
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* while the #GtkFixed is not realized, for instance, immediately after the
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* window is created.
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*
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* This function was added to provide an easy migration path for
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* older applications which may expect #GtkFixed to have a separate window.
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**/
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void
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gtk_fixed_set_has_window (GtkFixed *fixed,
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gboolean has_window)
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{
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g_return_if_fail (GTK_IS_FIXED (fixed));
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g_return_if_fail (!GTK_WIDGET_REALIZED (fixed));
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if (!has_window != GTK_WIDGET_NO_WINDOW (fixed))
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{
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if (has_window)
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GTK_WIDGET_UNSET_FLAGS (fixed, GTK_NO_WINDOW);
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else
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GTK_WIDGET_SET_FLAGS (fixed, GTK_NO_WINDOW);
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}
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}
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/**
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* gtk_fixed_get_has_window:
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* @fixed: a #GtkWidget
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*
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* Gets whether the #GtkFixed has its own #GdkWindow.
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* See gtk_fixed_set_has_window().
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*
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* Return value: %TRUE if @fixed has its own window.
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**/
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gboolean
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gtk_fixed_get_has_window (GtkFixed *fixed)
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{
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g_return_val_if_fail (GTK_IS_FIXED (fixed), FALSE);
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return !GTK_WIDGET_NO_WINDOW (fixed);
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}
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#define __GTK_FIXED_C__
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#include "gtkaliasdef.c"
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