#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; fespotlight->x_set = FALSE; fespotlight->y_set = FALSE; fespotlight->z_set = FALSE; fespotlight->pointsAtX_set = FALSE; fespotlight->pointsAtY_set = FALSE; fespotlight->pointsAtZ_set = FALSE; fespotlight->specularExponent_set = FALSE; fespotlight->limitingConeAngle_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 00110 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 00134 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 00150 sp_fespotlight_set(SPObject *object, unsigned int key, gchar const *value) { SPFeSpotLight *fespotlight = SP_FESPOTLIGHT(object); gchar *end_ptr; switch (key) { case SP_ATTR_X: end_ptr = NULL; if (value) { fespotlight->x = g_ascii_strtod(value, &end_ptr); if (end_ptr) fespotlight->x_set = TRUE; } if(!value || !end_ptr) { fespotlight->x = 0; fespotlight->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) { fespotlight->y = g_ascii_strtod(value, &end_ptr); if (end_ptr) fespotlight->y_set = TRUE; } if(!value || !end_ptr) { fespotlight->y = 0; fespotlight->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) { fespotlight->z = g_ascii_strtod(value, &end_ptr); if (end_ptr) fespotlight->z_set = TRUE; } if(!value || !end_ptr) { fespotlight->z = 0; fespotlight->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; case SP_ATTR_POINTSATX: end_ptr = NULL; if (value) { fespotlight->pointsAtX = g_ascii_strtod(value, &end_ptr); if (end_ptr) fespotlight->pointsAtX_set = TRUE; } if(!value || !end_ptr) { fespotlight->pointsAtX = 0; fespotlight->pointsAtX_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_POINTSATY: end_ptr = NULL; if (value) { fespotlight->pointsAtY = g_ascii_strtod(value, &end_ptr); if (end_ptr) fespotlight->pointsAtY_set = TRUE; } if(!value || !end_ptr) { fespotlight->pointsAtY = 0; fespotlight->pointsAtY_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_POINTSATZ: end_ptr = NULL; if (value) { fespotlight->pointsAtZ = g_ascii_strtod(value, &end_ptr); if (end_ptr) fespotlight->pointsAtZ_set = TRUE; } if(!value || !end_ptr) { fespotlight->pointsAtZ = 0; fespotlight->pointsAtZ_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_SPECULAREXPONENT: end_ptr = NULL; if (value) { fespotlight->specularExponent = g_ascii_strtod(value, &end_ptr); if (end_ptr) fespotlight->specularExponent_set = TRUE; } if(!value || !end_ptr) { fespotlight->specularExponent = 1; fespotlight->specularExponent_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_LIMITINGCONEANGLE: end_ptr = NULL; if (value) { fespotlight->limitingConeAngle = g_ascii_strtod(value, &end_ptr); if (end_ptr) fespotlight->limitingConeAngle_set = TRUE; } if(!value || !end_ptr) { fespotlight->limitingConeAngle = 90; fespotlight->limitingConeAngle_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 *) feSpotLight_parent_class)->set) { ((SPObjectClass *) feSpotLight_parent_class)->set(object, key, value); } break; } } /** * * Receives update notifications. * */ static void 00305 sp_fespotlight_update(SPObject *object, SPCtx *ctx, guint flags) { SPFeSpotLight *feSpotLight = SP_FESPOTLIGHT(object); (void)feSpotLight; 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 * 00331 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 } if (fespotlight->x_set) sp_repr_set_css_double(repr, "x", fespotlight->x); if (fespotlight->y_set) sp_repr_set_css_double(repr, "y", fespotlight->y); if (fespotlight->z_set) sp_repr_set_css_double(repr, "z", fespotlight->z); if (fespotlight->pointsAtX_set) sp_repr_set_css_double(repr, "pointsAtX", fespotlight->pointsAtX); if (fespotlight->pointsAtY_set) sp_repr_set_css_double(repr, "pointsAtY", fespotlight->pointsAtY); if (fespotlight->pointsAtZ_set) sp_repr_set_css_double(repr, "pointsAtZ", fespotlight->pointsAtZ); if (fespotlight->specularExponent_set) sp_repr_set_css_double(repr, "specularExponent", fespotlight->specularExponent); if (fespotlight->limitingConeAngle_set) 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 :