gtk2/gtk/gtkhbbox.c
Matthias Clasen 3612aee585 Add hidden aliases for exported symbols which are used internally in order
Mon Aug  9 12:48:04 2004  Matthias Clasen  <maclas@gmx.de>

	Add hidden aliases for exported symbols which are
	used internally in order to get rid of many PLT
	entries.  (#145519, Arjan van de Ven)

	* gtk/Makefile.am: Add rules to generate gtk.def and
	from gtk.symbols, and make make check check the abi
	with abicheck.sh.
	(gtk_private_h_sources): Add gtkinternals.h
	(gtk_built_private_headers): Add gtkalias.h
	(gtk_extra_sources): Add gtk.symbols
	(EXTRA_DIST): Add makegtkalias.pl and abicheck.sh

	* gtk/gtk.symbols: New file. Definition of the GTK+ ABI.
	The file can be processed by cpp to filter out certain
	subsets of symbols.

	* gtk/abicheck.sh: New file. Script to check the actually
	symbols exported from libgtk-x11.2.0.so against the symbols
	found in gtk.symbols.

	* gtk/makegtkalias.pl: New file. Perl script to generate the
	header containing the alias definitions for internally used
	exported symbols from a list of symbols.

	* gtk/gtkinternals.h: New file. An uninstalled header listing
	symbols which must be exported for some reason and do not appear
	in any other header.

	* gtk/*.c: Include gtkalias.h
2004-08-09 16:59:53 +00:00

308 lines
7.9 KiB
C

/* 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 <config.h>
#include "gtkalias.h"
#include "gtkhbbox.h"
static void gtk_hbutton_box_class_init (GtkHButtonBoxClass *klass);
static void gtk_hbutton_box_init (GtkHButtonBox *box);
static void gtk_hbutton_box_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_hbutton_box_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static gint default_spacing = 30;
static gint default_layout_style = GTK_BUTTONBOX_EDGE;
GType
gtk_hbutton_box_get_type (void)
{
static GType hbutton_box_type = 0;
if (!hbutton_box_type)
{
static const GTypeInfo hbutton_box_info =
{
sizeof (GtkHButtonBoxClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_hbutton_box_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkHButtonBox),
0, /* n_preallocs */
(GInstanceInitFunc) gtk_hbutton_box_init,
};
hbutton_box_type =
g_type_register_static (GTK_TYPE_BUTTON_BOX, "GtkHButtonBox",
&hbutton_box_info, 0);
}
return hbutton_box_type;
}
static void
gtk_hbutton_box_class_init (GtkHButtonBoxClass *class)
{
GtkWidgetClass *widget_class;
widget_class = (GtkWidgetClass*) class;
widget_class->size_request = gtk_hbutton_box_size_request;
widget_class->size_allocate = gtk_hbutton_box_size_allocate;
}
static void
gtk_hbutton_box_init (GtkHButtonBox *hbutton_box)
{
/* button_box_init has done everything allready */
}
GtkWidget*
gtk_hbutton_box_new (void)
{
GtkHButtonBox *hbutton_box;
hbutton_box = g_object_new (GTK_TYPE_HBUTTON_BOX, NULL);
return GTK_WIDGET (hbutton_box);
}
/* set default value for spacing */
void
gtk_hbutton_box_set_spacing_default (gint spacing)
{
default_spacing = spacing;
}
/* set default value for layout style */
void
gtk_hbutton_box_set_layout_default (GtkButtonBoxStyle layout)
{
g_return_if_fail (layout >= GTK_BUTTONBOX_DEFAULT_STYLE &&
layout <= GTK_BUTTONBOX_END);
default_layout_style = layout;
}
/* get default value for spacing */
gint
gtk_hbutton_box_get_spacing_default (void)
{
return default_spacing;
}
/* get default value for layout style */
GtkButtonBoxStyle
gtk_hbutton_box_get_layout_default (void)
{
return default_layout_style;
}
static void
gtk_hbutton_box_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkBox *box;
GtkButtonBox *bbox;
gint nvis_children;
gint child_width;
gint child_height;
gint spacing;
GtkButtonBoxStyle layout;
box = GTK_BOX (widget);
bbox = GTK_BUTTON_BOX (widget);
spacing = box->spacing;
layout = bbox->layout_style != GTK_BUTTONBOX_DEFAULT_STYLE
? bbox->layout_style : default_layout_style;
_gtk_button_box_child_requisition (widget,
&nvis_children,
NULL,
&child_width,
&child_height);
if (nvis_children == 0)
{
requisition->width = 0;
requisition->height = 0;
}
else
{
switch (layout)
{
case GTK_BUTTONBOX_SPREAD:
requisition->width =
nvis_children*child_width + ((nvis_children+1)*spacing);
break;
case GTK_BUTTONBOX_EDGE:
case GTK_BUTTONBOX_START:
case GTK_BUTTONBOX_END:
requisition->width = nvis_children*child_width + ((nvis_children-1)*spacing);
break;
default:
g_assert_not_reached();
break;
}
requisition->height = child_height;
}
requisition->width += GTK_CONTAINER (box)->border_width * 2;
requisition->height += GTK_CONTAINER (box)->border_width * 2;
}
static void
gtk_hbutton_box_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkBox *base_box;
GtkButtonBox *box;
GtkHButtonBox *hbox;
GtkBoxChild *child;
GList *children;
GtkAllocation child_allocation;
gint nvis_children;
gint n_secondaries;
gint child_width;
gint child_height;
gint x = 0;
gint secondary_x = 0;
gint y = 0;
gint width;
gint childspace;
gint childspacing = 0;
GtkButtonBoxStyle layout;
gint spacing;
base_box = GTK_BOX (widget);
box = GTK_BUTTON_BOX (widget);
hbox = GTK_HBUTTON_BOX (widget);
spacing = base_box->spacing;
layout = box->layout_style != GTK_BUTTONBOX_DEFAULT_STYLE
? box->layout_style : default_layout_style;
_gtk_button_box_child_requisition (widget,
&nvis_children,
&n_secondaries,
&child_width,
&child_height);
widget->allocation = *allocation;
width = allocation->width - GTK_CONTAINER (box)->border_width*2;
switch (layout)
{
case GTK_BUTTONBOX_SPREAD:
childspacing = (width - (nvis_children * child_width)) / (nvis_children + 1);
x = allocation->x + GTK_CONTAINER (box)->border_width + childspacing;
secondary_x = x + ((nvis_children - n_secondaries) * (child_width + childspacing));
break;
case GTK_BUTTONBOX_EDGE:
if (nvis_children >= 2)
{
childspacing = (width - (nvis_children * child_width)) / (nvis_children - 1);
x = allocation->x + GTK_CONTAINER (box)->border_width;
secondary_x = x + ((nvis_children - n_secondaries) * (child_width + childspacing));
}
else
{
/* one or zero children, just center */
childspacing = width;
x = secondary_x = allocation->x + (allocation->width - child_width) / 2;
}
break;
case GTK_BUTTONBOX_START:
childspacing = spacing;
x = allocation->x + GTK_CONTAINER (box)->border_width;
secondary_x = allocation->x + allocation->width
- child_width * n_secondaries
- spacing * (n_secondaries - 1)
- GTK_CONTAINER (box)->border_width;
break;
case GTK_BUTTONBOX_END:
childspacing = spacing;
x = allocation->x + allocation->width
- child_width * (nvis_children - n_secondaries)
- spacing * (nvis_children - n_secondaries - 1)
- GTK_CONTAINER (box)->border_width;
secondary_x = allocation->x + GTK_CONTAINER (box)->border_width;
break;
default:
g_assert_not_reached();
break;
}
y = allocation->y + (allocation->height - child_height) / 2;
childspace = child_width + childspacing;
children = GTK_BOX (box)->children;
while (children)
{
child = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (child->widget))
{
child_allocation.width = child_width;
child_allocation.height = child_height;
child_allocation.y = y;
if (child->is_secondary)
{
child_allocation.x = secondary_x;
secondary_x += childspace;
}
else
{
child_allocation.x = x;
x += childspace;
}
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
child_allocation.x = (allocation->x + allocation->width) - (child_allocation.x + child_width - allocation->x);
gtk_widget_size_allocate (child->widget, &child_allocation);
}
}
}