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/* 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 Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "gtkhpaned.h"
static void gtk_hpaned_class_init (GtkHPanedClass *klass);
static void gtk_hpaned_init (GtkHPaned *hpaned);
static void gtk_hpaned_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_hpaned_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static gpointer parent_class;
GType
gtk_hpaned_get_type (void)
{
static GType hpaned_type = 0;
if (!hpaned_type)
{
static const GTypeInfo hpaned_info =
{
sizeof (GtkHPanedClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_hpaned_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkHPaned),
0, /* n_preallocs */
(GInstanceInitFunc) gtk_hpaned_init,
};
hpaned_type = g_type_register_static (GTK_TYPE_PANED, "GtkHPaned",
&hpaned_info, 0);
}
return hpaned_type;
}
static void
gtk_hpaned_class_init (GtkHPanedClass *class)
{
GtkWidgetClass *widget_class;
parent_class = g_type_class_peek_parent (class);
widget_class = (GtkWidgetClass *) class;
widget_class->size_request = gtk_hpaned_size_request;
widget_class->size_allocate = gtk_hpaned_size_allocate;
}
static void
gtk_hpaned_init (GtkHPaned *hpaned)
{
GtkPaned *paned;
g_return_if_fail (GTK_IS_PANED (hpaned));
paned = GTK_PANED (hpaned);
paned->cursor_type = GDK_SB_H_DOUBLE_ARROW;
paned->orientation = GTK_ORIENTATION_VERTICAL;
}
GtkWidget *
gtk_hpaned_new (void)
{
GtkHPaned *hpaned;
hpaned = g_object_new (GTK_TYPE_HPANED, NULL);
return GTK_WIDGET (hpaned);
}
static void
gtk_hpaned_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkPaned *paned = GTK_PANED (widget);
GtkRequisition child_requisition;
requisition->width = 0;
requisition->height = 0;
if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1))
{
gtk_widget_size_request (paned->child1, &child_requisition);
requisition->height = child_requisition.height;
requisition->width = child_requisition.width;
}
if (paned->child2 && GTK_WIDGET_VISIBLE (paned->child2))
{
gtk_widget_size_request (paned->child2, &child_requisition);
requisition->height = MAX(requisition->height, child_requisition.height);
requisition->width += child_requisition.width;
}
requisition->width += GTK_CONTAINER (paned)->border_width * 2;
requisition->height += GTK_CONTAINER (paned)->border_width * 2;
if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1) &&
paned->child2 && GTK_WIDGET_VISIBLE (paned->child2))
{
gint handle_size;
gtk_widget_style_get (widget, "handle_size", &handle_size, NULL);
requisition->width += handle_size;
}
}
static void
gtk_hpaned_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkPaned *paned = GTK_PANED (widget);
gint border_width = GTK_CONTAINER (paned)->border_width;
widget->allocation = *allocation;
if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1) &&
paned->child2 && GTK_WIDGET_VISIBLE (paned->child2))
{
GtkAllocation child1_allocation;
GtkAllocation child2_allocation;
GtkRequisition child1_requisition;
GtkRequisition child2_requisition;
gint handle_size;
gtk_widget_style_get (widget, "handle_size", &handle_size, NULL);
gtk_widget_get_child_requisition (paned->child1, &child1_requisition);
gtk_widget_get_child_requisition (paned->child2, &child2_requisition);
gtk_paned_compute_position (paned,
MAX (1, widget->allocation.width
- handle_size
- 2 * border_width),
child1_requisition.width,
child2_requisition.width);
paned->handle_pos.x = widget->allocation.x + paned->child1_size + border_width;
paned->handle_pos.y = widget->allocation.y + border_width;
paned->handle_pos.width = handle_size;
paned->handle_pos.height = MAX (1, widget->allocation.height - 2 * border_width);
if (GTK_WIDGET_REALIZED (widget))
{
if (GTK_WIDGET_MAPPED (widget))
gdk_window_show (paned->handle);
gdk_window_move_resize (paned->handle,
paned->handle_pos.x,
paned->handle_pos.y,
handle_size,
paned->handle_pos.height);
}
child1_allocation.height = child2_allocation.height = MAX (1, (gint) allocation->height - border_width * 2);
child1_allocation.width = MAX (1, paned->child1_size);
child1_allocation.x = widget->allocation.x + border_width;
child1_allocation.y = child2_allocation.y = widget->allocation.y + border_width;
child2_allocation.x = child1_allocation.x + paned->child1_size + paned->handle_pos.width;
child2_allocation.width = MAX (1, widget->allocation.x + widget->allocation.width - child2_allocation.x - border_width);
/* Now allocate the childen, making sure, when resizing not to
* overlap the windows
*/
if (GTK_WIDGET_MAPPED (widget) &&
paned->child1->allocation.width < child1_allocation.width)
{
gtk_widget_size_allocate (paned->child2, &child2_allocation);
gtk_widget_size_allocate (paned->child1, &child1_allocation);
}
else
{
gtk_widget_size_allocate (paned->child1, &child1_allocation);
gtk_widget_size_allocate (paned->child2, &child2_allocation);
}
}
else
{
GtkAllocation child_allocation;
if (GTK_WIDGET_REALIZED (widget))
gdk_window_hide (paned->handle);
gtk_widget_set_child_visible (paned->child1, TRUE);
gtk_widget_set_child_visible (paned->child2, TRUE);
child_allocation.x = widget->allocation.x + border_width;
child_allocation.y = widget->allocation.y + border_width;
child_allocation.width = MAX (1, allocation->width - 2 * border_width);
child_allocation.height = MAX (1, allocation->height - 2 * border_width);
if (paned->child1 && GTK_WIDGET_VISIBLE (paned->child1))
gtk_widget_size_allocate (paned->child1, &child_allocation);
else if (paned->child2 && GTK_WIDGET_VISIBLE (paned->child2))
gtk_widget_size_allocate (paned->child2, &child_allocation);
}
}
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