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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim: set sw=4 sts=4 ts=4 expandtab: */
/*
rsvg-filter.c: Provides filters
Copyright (C) 2004 Caleb Moore
This program 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 program 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 program; if not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
Author: Caleb Moore <calebmm@tpg.com.au>
*/
#include "rsvg-private.h"
#include "rsvg-mask.h"
#include "rsvg-styles.h"
#include "rsvg-css.h"
#include <string.h>
static void
rsvg_mask_set_atts (RsvgNode * self, RsvgHandle * ctx, RsvgPropertyBag * atts)
{
const char *id = NULL, *klazz = NULL, *value;
RsvgMask *mask;
mask = (RsvgMask *) self;
if (rsvg_property_bag_size (atts)) {
if ((value = rsvg_property_bag_lookup (atts, "maskUnits"))) {
if (!strcmp (value, "userSpaceOnUse"))
mask->maskunits = userSpaceOnUse;
else
mask->maskunits = objectBoundingBox;
}
if ((value = rsvg_property_bag_lookup (atts, "maskContentUnits"))) {
if (!strcmp (value, "objectBoundingBox"))
mask->contentunits = objectBoundingBox;
else
mask->contentunits = userSpaceOnUse;
}
if ((value = rsvg_property_bag_lookup (atts, "x")))
mask->x = _rsvg_css_parse_length (value);
if ((value = rsvg_property_bag_lookup (atts, "y")))
mask->y = _rsvg_css_parse_length (value);
if ((value = rsvg_property_bag_lookup (atts, "width")))
mask->width = _rsvg_css_parse_length (value);
if ((value = rsvg_property_bag_lookup (atts, "height")))
mask->height = _rsvg_css_parse_length (value);
if ((value = rsvg_property_bag_lookup (atts, "id"))) {
id = value;
rsvg_defs_register_name (ctx->priv->defs, id, &mask->super);
}
if ((value = rsvg_property_bag_lookup (atts, "class")))
klazz = value;
}
rsvg_parse_style_attrs (ctx, mask->super.state, "mask", klazz, id, atts);
}
RsvgNode *
rsvg_new_mask (void)
{
RsvgMask *mask;
mask = g_new (RsvgMask, 1);
_rsvg_node_init (&mask->super, RSVG_NODE_TYPE_MASK);
mask->maskunits = objectBoundingBox;
mask->contentunits = userSpaceOnUse;
mask->x = _rsvg_css_parse_length ("0");
mask->y = _rsvg_css_parse_length ("0");
mask->width = _rsvg_css_parse_length ("1");
mask->height = _rsvg_css_parse_length ("1");
mask->super.set_atts = rsvg_mask_set_atts;
return &mask->super;
}
char *
rsvg_get_url_string (const char *str)
{
if (!strncmp (str, "url(", 4)) {
const char *p = str + 4;
int ix;
while (g_ascii_isspace (*p))
p++;
for (ix = 0; p[ix]; ix++)
if (p[ix] == ')')
return g_strndup (p, ix);
}
return NULL;
}
RsvgNode *
rsvg_mask_parse (const RsvgDefs * defs, const char *str)
{
char *name;
name = rsvg_get_url_string (str);
if (name) {
RsvgNode *val;
val = rsvg_defs_lookup (defs, name);
g_free (name);
if (val && RSVG_NODE_TYPE (val) == RSVG_NODE_TYPE_MASK)
return val;
}
return NULL;
}
RsvgNode *
rsvg_clip_path_parse (const RsvgDefs * defs, const char *str)
{
char *name;
name = rsvg_get_url_string (str);
if (name) {
RsvgNode *val;
val = rsvg_defs_lookup (defs, name);
g_free (name);
if (val && RSVG_NODE_TYPE (val) == RSVG_NODE_TYPE_CLIP_PATH)
return val;
}
return NULL;
}
static void
rsvg_clip_path_set_atts (RsvgNode * self, RsvgHandle * ctx, RsvgPropertyBag * atts)
{
const char *id = NULL, *klazz = NULL, *value = NULL;
RsvgClipPath *clip_path;
clip_path = (RsvgClipPath *) self;
if (rsvg_property_bag_size (atts)) {
if ((value = rsvg_property_bag_lookup (atts, "clipPathUnits"))) {
if (!strcmp (value, "objectBoundingBox"))
clip_path->units = objectBoundingBox;
else
clip_path->units = userSpaceOnUse;
}
if ((value = rsvg_property_bag_lookup (atts, "id"))) {
id = value;
rsvg_defs_register_name (ctx->priv->defs, id, &clip_path->super);
}
if ((value = rsvg_property_bag_lookup (atts, "class")))
klazz = value;
}
rsvg_parse_style_attrs (ctx, clip_path->super.state, "clipPath", klazz, id, atts);
}
RsvgNode *
rsvg_new_clip_path (void)
{
RsvgClipPath *clip_path;
clip_path = g_new (RsvgClipPath, 1);
_rsvg_node_init (&clip_path->super, RSVG_NODE_TYPE_CLIP_PATH);
clip_path->units = userSpaceOnUse;
clip_path->super.set_atts = rsvg_clip_path_set_atts;
clip_path->super.free = _rsvg_node_free;
return &clip_path->super;
}
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