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/*
* Base class for gradients and patterns
*
* Author:
* Lauris Kaplinski <lauris@kaplinski.com>
* Jon A. Cruz <jon@joncruz.org>
*
* Copyright (C) 1999-2002 Lauris Kaplinski
* Copyright (C) 2000-2001 Ximian, Inc.
* Copyright (C) 2000-2001 Ximian, Inc.
* Copyright (C) 2010 Authors
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#include <string.h>
#include "libnr/nr-pixblock-pattern.h"
#include "sp-paint-server.h"
#include "sp-gradient.h"
#include "xml/node.h"
static void sp_paint_server_class_init(SPPaintServerClass *psc);
static void sp_paint_server_init(SPPaintServer *ps);
static void sp_paint_server_release(SPObject *object);
static void sp_painter_stale_fill(SPPainter *painter, NRPixBlock *pb);
static SPObjectClass *parent_class;
static GSList *stale_painters = NULL;
GType sp_paint_server_get_type (void)
{
static GType type = 0;
if (!type) {
GTypeInfo info = {
sizeof(SPPaintServerClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) sp_paint_server_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof(SPPaintServer),
16, /* n_preallocs */
(GInstanceInitFunc) sp_paint_server_init,
NULL, /* value_table */
};
type = g_type_register_static(SP_TYPE_OBJECT, "SPPaintServer", &info, (GTypeFlags) 0);
}
return type;
}
static void sp_paint_server_class_init(SPPaintServerClass *psc)
{
SPObjectClass *sp_object_class = (SPObjectClass *) psc;
sp_object_class->release = sp_paint_server_release;
parent_class = (SPObjectClass *) g_type_class_ref(SP_TYPE_OBJECT);
}
static void sp_paint_server_init(SPPaintServer *ps)
{
ps->painters = NULL;
}
static void sp_paint_server_release(SPObject *object)
{
SPPaintServer *ps = SP_PAINT_SERVER(object);
while (ps->painters) {
SPPainter *painter = ps->painters;
ps->painters = painter->next;
stale_painters = g_slist_prepend(stale_painters, painter);
painter->next = NULL;
painter->server = NULL;
painter->fill = sp_painter_stale_fill;
}
if (((SPObjectClass *) parent_class)->release) {
((SPObjectClass *) parent_class)->release(object);
}
}
SPPainter *sp_paint_server_painter_new(SPPaintServer *ps,
Geom::Matrix const &full_transform,
Geom::Matrix const &parent_transform,
const NRRect *bbox)
{
g_return_val_if_fail(ps != NULL, NULL);
g_return_val_if_fail(SP_IS_PAINT_SERVER(ps), NULL);
g_return_val_if_fail(bbox != NULL, NULL);
SPPainter *painter = NULL;
SPPaintServerClass *psc = (SPPaintServerClass *) G_OBJECT_GET_CLASS(ps);
if ( psc->painter_new ) {
painter = (*psc->painter_new)(ps, full_transform, parent_transform, bbox);
}
if (painter) {
painter->next = ps->painters;
painter->server = ps;
painter->type = (SPPainterType) G_OBJECT_TYPE(ps);
ps->painters = painter;
}
return painter;
}
static void sp_paint_server_painter_free(SPPaintServer *ps, SPPainter *painter)
{
g_return_if_fail(ps != NULL);
g_return_if_fail(SP_IS_PAINT_SERVER(ps));
g_return_if_fail(painter != NULL);
SPPaintServerClass *psc = (SPPaintServerClass *) G_OBJECT_GET_CLASS(ps);
SPPainter *r = NULL;
for (SPPainter *p = ps->painters; p != NULL; p = p->next) {
if (p == painter) {
if (r) {
r->next = p->next;
} else {
ps->painters = p->next;
}
p->next = NULL;
if (psc->painter_free) {
(*psc->painter_free) (ps, painter);
}
return;
}
r = p;
}
g_assert_not_reached();
}
SPPainter *sp_painter_free(SPPainter *painter)
{
g_return_val_if_fail(painter != NULL, NULL);
if (painter->server) {
sp_paint_server_painter_free(painter->server, painter);
} else {
SPPaintServerClass *psc = (SPPaintServerClass *) g_type_class_ref(painter->type);
if (psc->painter_free)
(*psc->painter_free)(NULL, painter);
stale_painters = g_slist_remove(stale_painters, painter);
}
return NULL;
}
static void sp_painter_stale_fill(SPPainter */*painter*/, NRPixBlock *pb)
{
nr_pixblock_render_gray_noise(pb, NULL);
}
bool SPPaintServer::isSwatch() const
{
bool swatch = false;
if (SP_IS_GRADIENT(this)) {
SPGradient *grad = SP_GRADIENT(this);
//XML Tree being used directly here while it shouldn't be.
swatch = grad->hasStops() && getRepr()->attribute("osb:paint");
}
return swatch;
}
bool SPPaintServer::isSolid() const
{
bool solid = false;
if (SP_IS_GRADIENT(this)) {
SPGradient *grad = SP_GRADIENT(this);
if ( grad->hasStops() && (grad->getStopCount() == 0) ) {
//XML Tree being used directly here while it shouldn't be.
gchar const * attr = getRepr()->attribute("osb:paint");
if (attr && !strcmp(attr, "solid")) {
solid = true;
}
}
}
return solid;
}
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :
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