#define __SP_FEDISTANTLIGHT_CPP__ /** \file * SVG <fedistantlight> 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-fedistantlight.h" #include "sp-fediffuselighting-fns.h" #include "sp-fespecularlighting-fns.h" #include "xml/repr.h" #define SP_MACROS_SILENT #include "macros.h" /* FeDistantLight class */ static void sp_fedistantlight_class_init(SPFeDistantLightClass *klass); static void sp_fedistantlight_init(SPFeDistantLight *fedistantlight); static void sp_fedistantlight_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr); static void sp_fedistantlight_release(SPObject *object); static void sp_fedistantlight_set(SPObject *object, unsigned int key, gchar const *value); static void sp_fedistantlight_update(SPObject *object, SPCtx *ctx, guint flags); static Inkscape::XML::Node *sp_fedistantlight_write(SPObject *object, Inkscape::XML::Node *repr, guint flags); static SPObjectClass *feDistantLight_parent_class; GType sp_fedistantlight_get_type() { static GType fedistantlight_type = 0; if (!fedistantlight_type) { GTypeInfo fedistantlight_info = { sizeof(SPFeDistantLightClass), NULL, NULL, (GClassInitFunc) sp_fedistantlight_class_init, NULL, NULL, sizeof(SPFeDistantLight), 16, (GInstanceInitFunc) sp_fedistantlight_init, NULL, /* value_table */ }; fedistantlight_type = g_type_register_static(SP_TYPE_OBJECT, "SPFeDistantLight", &fedistantlight_info, (GTypeFlags)0); } return fedistantlight_type; } static void sp_fedistantlight_class_init(SPFeDistantLightClass *klass) { SPObjectClass *sp_object_class = (SPObjectClass *)klass; feDistantLight_parent_class = (SPObjectClass*)g_type_class_peek_parent(klass); sp_object_class->build = sp_fedistantlight_build; sp_object_class->release = sp_fedistantlight_release; sp_object_class->write = sp_fedistantlight_write; sp_object_class->set = sp_fedistantlight_set; sp_object_class->update = sp_fedistantlight_update; } static void sp_fedistantlight_init(SPFeDistantLight *fedistantlight) { fedistantlight->azimuth = 0; fedistantlight->elevation = 0; fedistantlight->azimuth_set = FALSE; fedistantlight->elevation_set = FALSE; } /** * Reads the Inkscape::XML::Node, and initializes SPDistantLight 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 00097 sp_fedistantlight_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr) { if (((SPObjectClass *) feDistantLight_parent_class)->build) { ((SPObjectClass *) feDistantLight_parent_class)->build(object, document, repr); } //Read values of key attributes from XML nodes into object. sp_object_read_attr(object, "azimuth"); sp_object_read_attr(object, "elevation"); //is this necessary? sp_document_add_resource(document, "fedistantlight", object); } /** * Drops any allocated memory. */ static void 00115 sp_fedistantlight_release(SPObject *object) { //SPFeDistantLight *fedistantlight = SP_FEDISTANTLIGHT(object); if (SP_OBJECT_DOCUMENT(object)) { /* Unregister ourselves */ sp_document_remove_resource(SP_OBJECT_DOCUMENT(object), "fedistantlight", SP_OBJECT(object)); } //TODO: release resources here } /** * Sets a specific value in the SPFeDistantLight. */ static void 00131 sp_fedistantlight_set(SPObject *object, unsigned int key, gchar const *value) { SPFeDistantLight *fedistantlight = SP_FEDISTANTLIGHT(object); gchar *end_ptr; switch (key) { case SP_ATTR_AZIMUTH: end_ptr =NULL; if (value) { fedistantlight->azimuth = g_ascii_strtod(value, &end_ptr); if (end_ptr) { fedistantlight->azimuth_set = TRUE; } } if (!value || !end_ptr) { fedistantlight->azimuth_set = FALSE; fedistantlight->azimuth = 0; } 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_ELEVATION: end_ptr =NULL; if (value) { fedistantlight->elevation = g_ascii_strtod(value, &end_ptr); if (end_ptr) { fedistantlight->elevation_set = TRUE; } } if (!value || !end_ptr) { fedistantlight->elevation_set = FALSE; fedistantlight->elevation = 0; } 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 *) feDistantLight_parent_class)->set) { ((SPObjectClass *) feDistantLight_parent_class)->set(object, key, value); } break; } } /** * * Receives update notifications. * */ static void 00185 sp_fedistantlight_update(SPObject *object, SPCtx *ctx, guint flags) { SPFeDistantLight *feDistantLight = SP_FEDISTANTLIGHT(object); (void)feDistantLight; if (flags & SP_OBJECT_MODIFIED_FLAG) { /* do something to trigger redisplay, updates? */ sp_object_read_attr(object, "azimuth"); sp_object_read_attr(object, "elevation"); } if (((SPObjectClass *) feDistantLight_parent_class)->update) { ((SPObjectClass *) feDistantLight_parent_class)->update(object, ctx, flags); } } /** * Writes its settings to an incoming repr object, if any. */ static Inkscape::XML::Node * 00205 sp_fedistantlight_write(SPObject *object, Inkscape::XML::Node *repr, guint flags) { SPFeDistantLight *fedistantlight = SP_FEDISTANTLIGHT(object); if (!repr) { repr = SP_OBJECT_REPR(object)->duplicate(NULL); // FIXME } if (fedistantlight->azimuth_set) sp_repr_set_css_double(repr, "azimuth", fedistantlight->azimuth); if (fedistantlight->elevation_set) sp_repr_set_css_double(repr, "elevation", fedistantlight->elevation); if (((SPObjectClass *) feDistantLight_parent_class)->write) { ((SPObjectClass *) feDistantLight_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 :