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/** \file
* SVG <fepointlight> implementation.
*/
/*
* Authors:
* Hugo Rodrigues <haa.rodrigues@gmail.com>
* Niko Kiirala <niko@kiirala.com>
* Jean-Rene Reinhard <jr@komite.net>
* Abhishek Sharma
*
* Copyright (C) 2006,2007 Authors
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <glib.h>
#include "attributes.h"
#include "document.h"
#include "filters/pointlight.h"
#include "filters/diffuselighting.h"
#include "filters/specularlighting.h"
#include "xml/repr.h"
#define SP_MACROS_SILENT
#include "macros.h"
/* FePointLight class */
static void sp_fepointlight_class_init(SPFePointLightClass *klass);
static void sp_fepointlight_init(SPFePointLight *fepointlight);
static void sp_fepointlight_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
static void sp_fepointlight_release(SPObject *object);
static void sp_fepointlight_set(SPObject *object, unsigned int key, gchar const *value);
static void sp_fepointlight_update(SPObject *object, SPCtx *ctx, guint flags);
static Inkscape::XML::Node *sp_fepointlight_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags);
static SPObjectClass *fePointLight_parent_class;
GType
sp_fepointlight_get_type()
{
static GType fepointlight_type = 0;
if (!fepointlight_type) {
GTypeInfo fepointlight_info = {
sizeof(SPFePointLightClass),
NULL, NULL,
(GClassInitFunc) sp_fepointlight_class_init,
NULL, NULL,
sizeof(SPFePointLight),
16,
(GInstanceInitFunc) sp_fepointlight_init,
NULL, /* value_table */
};
fepointlight_type = g_type_register_static(SP_TYPE_OBJECT, "SPFePointLight", &fepointlight_info, (GTypeFlags)0);
}
return fepointlight_type;
}
static void
sp_fepointlight_class_init(SPFePointLightClass *klass)
{
SPObjectClass *sp_object_class = (SPObjectClass *)klass;
fePointLight_parent_class = (SPObjectClass*)g_type_class_peek_parent(klass);
sp_object_class->build = sp_fepointlight_build;
sp_object_class->release = sp_fepointlight_release;
sp_object_class->write = sp_fepointlight_write;
sp_object_class->set = sp_fepointlight_set;
sp_object_class->update = sp_fepointlight_update;
}
static void
sp_fepointlight_init(SPFePointLight *fepointlight)
{
fepointlight->x = 0;
fepointlight->y = 0;
fepointlight->z = 0;
fepointlight->x_set = FALSE;
fepointlight->y_set = FALSE;
fepointlight->z_set = FALSE;
}
/**
* Reads the Inkscape::XML::Node, and initializes SPPointLight variables. For this to get called,
* our name must be associated with a repr via "sp_object_type_register". Best done through
* sp-object-repr.cpp's repr_name_entries array.
*/
static void
sp_fepointlight_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
{
if (((SPObjectClass *) fePointLight_parent_class)->build) {
((SPObjectClass *) fePointLight_parent_class)->build(object, document, repr);
}
//Read values of key attributes from XML nodes into object.
object->readAttr( "x" );
object->readAttr( "y" );
object->readAttr( "z" );
//is this necessary?
document->addResource("fepointlight", object);
}
/**
* Drops any allocated memory.
*/
static void
sp_fepointlight_release(SPObject *object)
{
//SPFePointLight *fepointlight = SP_FEPOINTLIGHT(object);
if ( object->document ) {
// Unregister ourselves
object->document->removeResource("fepointlight", object);
}
//TODO: release resources here
}
/**
* Sets a specific value in the SPFePointLight.
*/
static void
sp_fepointlight_set(SPObject *object, unsigned int key, gchar const *value)
{
SPFePointLight *fepointlight = SP_FEPOINTLIGHT(object);
gchar *end_ptr;
switch (key) {
case SP_ATTR_X:
end_ptr = NULL;
if (value) {
fepointlight->x = g_ascii_strtod(value, &end_ptr);
if (end_ptr) {
fepointlight->x_set = TRUE;
}
}
if (!value || !end_ptr) {
fepointlight->x = 0;
fepointlight->x_set = FALSE;
}
if (object->parent &&
(SP_IS_FEDIFFUSELIGHTING(object->parent) ||
SP_IS_FESPECULARLIGHTING(object->parent))) {
object->parent->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
break;
case SP_ATTR_Y:
end_ptr = NULL;
if (value) {
fepointlight->y = g_ascii_strtod(value, &end_ptr);
if (end_ptr) {
fepointlight->y_set = TRUE;
}
}
if (!value || !end_ptr) {
fepointlight->y = 0;
fepointlight->y_set = FALSE;
}
if (object->parent &&
(SP_IS_FEDIFFUSELIGHTING(object->parent) ||
SP_IS_FESPECULARLIGHTING(object->parent))) {
object->parent->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
break;
case SP_ATTR_Z:
end_ptr = NULL;
if (value) {
fepointlight->z = g_ascii_strtod(value, &end_ptr);
if (end_ptr) {
fepointlight->z_set = TRUE;
}
}
if (!value || !end_ptr) {
fepointlight->z = 0;
fepointlight->z_set = FALSE;
}
if (object->parent &&
(SP_IS_FEDIFFUSELIGHTING(object->parent) ||
SP_IS_FESPECULARLIGHTING(object->parent))) {
object->parent->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
break;
default:
// See if any parents need this value.
if (((SPObjectClass *) fePointLight_parent_class)->set) {
((SPObjectClass *) fePointLight_parent_class)->set(object, key, value);
}
break;
}
}
/**
* * Receives update notifications.
* */
static void
sp_fepointlight_update(SPObject *object, SPCtx *ctx, guint flags)
{
SPFePointLight *fePointLight = SP_FEPOINTLIGHT(object);
(void)fePointLight;
if (flags & SP_OBJECT_MODIFIED_FLAG) {
/* do something to trigger redisplay, updates? */
object->readAttr( "x" );
object->readAttr( "y" );
object->readAttr( "z" );
}
if (((SPObjectClass *) fePointLight_parent_class)->update) {
((SPObjectClass *) fePointLight_parent_class)->update(object, ctx, flags);
}
}
/**
* Writes its settings to an incoming repr object, if any.
*/
static Inkscape::XML::Node *
sp_fepointlight_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags)
{
SPFePointLight *fepointlight = SP_FEPOINTLIGHT(object);
if (!repr) {
repr = object->getRepr()->duplicate(doc);
}
if (fepointlight->x_set)
sp_repr_set_css_double(repr, "x", fepointlight->x);
if (fepointlight->y_set)
sp_repr_set_css_double(repr, "y", fepointlight->y);
if (fepointlight->z_set)
sp_repr_set_css_double(repr, "z", fepointlight->z);
if (((SPObjectClass *) fePointLight_parent_class)->write) {
((SPObjectClass *) fePointLight_parent_class)->write(object, doc, repr, flags);
}
return repr;
}
/*
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:fileencoding=utf-8:textwidth=99 :
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