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Diffstat (limited to 'src/sp-fespotlight.cpp')
| -rw-r--r-- | src/sp-fespotlight.cpp | 281 |
1 files changed, 281 insertions, 0 deletions
diff --git a/src/sp-fespotlight.cpp b/src/sp-fespotlight.cpp new file mode 100644 index 000000000..d5ae5306c --- /dev/null +++ b/src/sp-fespotlight.cpp @@ -0,0 +1,281 @@ +#define __SP_FESPOTLIGHT_CPP__ + +/** \file + * SVG <fespotlight> implementation. + */ +/* + * Authors: + * Hugo Rodrigues <haa.rodrigues@gmail.com> + * Niko Kiirala <niko@kiirala.com> + * Jean-Rene Reinhard <jr@komite.net> + * + * 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 "sp-fespotlight.h" +#include "sp-fediffuselighting-fns.h" +#include "sp-fespecularlighting-fns.h" +#include "xml/repr.h" + +#define SP_MACROS_SILENT +#include "macros.h" + +/* FeSpotLight class */ + +static void sp_fespotlight_class_init(SPFeSpotLightClass *klass); +static void sp_fespotlight_init(SPFeSpotLight *fespotlight); + +static void sp_fespotlight_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr); +static void sp_fespotlight_release(SPObject *object); +static void sp_fespotlight_set(SPObject *object, unsigned int key, gchar const *value); +static void sp_fespotlight_update(SPObject *object, SPCtx *ctx, guint flags); +static Inkscape::XML::Node *sp_fespotlight_write(SPObject *object, Inkscape::XML::Node *repr, guint flags); + +static SPObjectClass *feSpotLight_parent_class; + +GType +sp_fespotlight_get_type() +{ + static GType fespotlight_type = 0; + + if (!fespotlight_type) { + GTypeInfo fespotlight_info = { + sizeof(SPFeSpotLightClass), + NULL, NULL, + (GClassInitFunc) sp_fespotlight_class_init, + NULL, NULL, + sizeof(SPFeSpotLight), + 16, + (GInstanceInitFunc) sp_fespotlight_init, + NULL, /* value_table */ + }; + fespotlight_type = g_type_register_static(SP_TYPE_OBJECT, "SPFeSpotLight", &fespotlight_info, (GTypeFlags)0); + } + return fespotlight_type; +} + +static void +sp_fespotlight_class_init(SPFeSpotLightClass *klass) +{ + + SPObjectClass *sp_object_class = (SPObjectClass *)klass; + + feSpotLight_parent_class = (SPObjectClass*)g_type_class_peek_parent(klass); + + sp_object_class->build = sp_fespotlight_build; + sp_object_class->release = sp_fespotlight_release; + sp_object_class->write = sp_fespotlight_write; + sp_object_class->set = sp_fespotlight_set; + sp_object_class->update = sp_fespotlight_update; +} + +static void +sp_fespotlight_init(SPFeSpotLight *fespotlight) +{ + fespotlight->x = 0; + fespotlight->y = 0; + fespotlight->z = 0; + fespotlight->pointsAtX = 0; + fespotlight->pointsAtY = 0; + fespotlight->pointsAtZ = 0; + fespotlight->specularExponent = 1; + fespotlight->limitingConeAngle = 90; +} + +/** + * 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_fespotlight_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr) +{ + if (((SPObjectClass *) feSpotLight_parent_class)->build) { + ((SPObjectClass *) feSpotLight_parent_class)->build(object, document, repr); + } + + //Read values of key attributes from XML nodes into object. + sp_object_read_attr(object, "x"); + sp_object_read_attr(object, "y"); + sp_object_read_attr(object, "z"); + sp_object_read_attr(object, "pointsAtX"); + sp_object_read_attr(object, "pointsAtY"); + sp_object_read_attr(object, "pointsAtZ"); + sp_object_read_attr(object, "specularExponent"); + sp_object_read_attr(object, "limitingConeAngle"); + +//is this necessary? + sp_document_add_resource(document, "fespotlight", object); +} + +/** + * Drops any allocated memory. + */ +static void +sp_fespotlight_release(SPObject *object) +{ + //SPFeSpotLight *fespotlight = SP_FESPOTLIGHT(object); + + if (SP_OBJECT_DOCUMENT(object)) { + /* Unregister ourselves */ + sp_document_remove_resource(SP_OBJECT_DOCUMENT(object), "fespotlight", SP_OBJECT(object)); + } + +//TODO: release resources here +} + +/** + * Sets a specific value in the SPFeSpotLight. + */ +static void +sp_fespotlight_set(SPObject *object, unsigned int key, gchar const *value) +{ + SPFeSpotLight *fespotlight = SP_FESPOTLIGHT(object); + + switch (key) { + case SP_ATTR_X: + fespotlight->x = g_ascii_strtod(value, NULL); + 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: + fespotlight->y = g_ascii_strtod(value, NULL); + 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: + fespotlight->z = g_ascii_strtod(value, NULL); + 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_POINTSATX: + fespotlight->pointsAtX = g_ascii_strtod(value, NULL); + 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_POINTSATY: + fespotlight->pointsAtY = g_ascii_strtod(value, NULL); + 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_POINTSATZ: + fespotlight->pointsAtZ = g_ascii_strtod(value, NULL); + 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_SPECULAREXPONENT: + fespotlight->specularExponent = g_ascii_strtod(value, NULL); + 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_LIMITINGCONEANGLE: + fespotlight->limitingConeAngle = g_ascii_strtod(value, NULL); + 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 *) feSpotLight_parent_class)->set) { + ((SPObjectClass *) feSpotLight_parent_class)->set(object, key, value); + } + break; + } +} + +/** + * * Receives update notifications. + * */ +static void +sp_fespotlight_update(SPObject *object, SPCtx *ctx, guint flags) +{ + SPFeSpotLight *feSpotLight = SP_FESPOTLIGHT(object); + + if (flags & SP_OBJECT_MODIFIED_FLAG) { + /* do something to trigger redisplay, updates? */ + sp_object_read_attr(object, "x"); + sp_object_read_attr(object, "y"); + sp_object_read_attr(object, "z"); + sp_object_read_attr(object, "pointsAtX"); + sp_object_read_attr(object, "pointsAtY"); + sp_object_read_attr(object, "pointsAtZ"); + sp_object_read_attr(object, "specularExponent"); + sp_object_read_attr(object, "limitingConeAngle"); + } + + if (((SPObjectClass *) feSpotLight_parent_class)->update) { + ((SPObjectClass *) feSpotLight_parent_class)->update(object, ctx, flags); + } +} + +/** + * Writes its settings to an incoming repr object, if any. + */ +static Inkscape::XML::Node * +sp_fespotlight_write(SPObject *object, Inkscape::XML::Node *repr, guint flags) +{ + SPFeSpotLight *fespotlight = SP_FESPOTLIGHT(object); + + if (!repr) { + repr = SP_OBJECT_REPR(object)->duplicate(NULL); // FIXME + } + + sp_repr_set_css_double(repr, "x", fespotlight->x); + sp_repr_set_css_double(repr, "y", fespotlight->y); + sp_repr_set_css_double(repr, "z", fespotlight->z); + sp_repr_set_css_double(repr, "pointsAtX", fespotlight->pointsAtX); + sp_repr_set_css_double(repr, "pointsAtY", fespotlight->pointsAtY); + sp_repr_set_css_double(repr, "pointsAtZ", fespotlight->pointsAtZ); + sp_repr_set_css_double(repr, "specularExponent", fespotlight->specularExponent); + sp_repr_set_css_double(repr, "limitingConeAngle", fespotlight->limitingConeAngle); + + if (((SPObjectClass *) feSpotLight_parent_class)->write) { + ((SPObjectClass *) feSpotLight_parent_class)->write(object, 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:encoding=utf-8:textwidth=99 : |