1 #define __SP_FEPOINTLIGHT_CPP__
3 /** \file
4 * SVG <fepointlight> implementation.
5 */
6 /*
7 * Authors:
8 * Hugo Rodrigues <haa.rodrigues@gmail.com>
9 * Niko Kiirala <niko@kiirala.com>
10 * Jean-Rene Reinhard <jr@komite.net>
11 *
12 * Copyright (C) 2006,2007 Authors
13 *
14 * Released under GNU GPL, read the file 'COPYING' for more information
15 */
17 #ifdef HAVE_CONFIG_H
18 # include "config.h"
19 #endif
21 #include <glib.h>
23 #include "attributes.h"
24 #include "document.h"
25 #include "sp-fepointlight.h"
26 #include "sp-fediffuselighting-fns.h"
27 #include "sp-fespecularlighting-fns.h"
28 #include "xml/repr.h"
30 #define SP_MACROS_SILENT
31 #include "macros.h"
33 /* FePointLight class */
35 static void sp_fepointlight_class_init(SPFePointLightClass *klass);
36 static void sp_fepointlight_init(SPFePointLight *fepointlight);
38 static void sp_fepointlight_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
39 static void sp_fepointlight_release(SPObject *object);
40 static void sp_fepointlight_set(SPObject *object, unsigned int key, gchar const *value);
41 static void sp_fepointlight_update(SPObject *object, SPCtx *ctx, guint flags);
42 static Inkscape::XML::Node *sp_fepointlight_write(SPObject *object, Inkscape::XML::Node *repr, guint flags);
44 static SPObjectClass *fePointLight_parent_class;
46 GType
47 sp_fepointlight_get_type()
48 {
49 static GType fepointlight_type = 0;
51 if (!fepointlight_type) {
52 GTypeInfo fepointlight_info = {
53 sizeof(SPFePointLightClass),
54 NULL, NULL,
55 (GClassInitFunc) sp_fepointlight_class_init,
56 NULL, NULL,
57 sizeof(SPFePointLight),
58 16,
59 (GInstanceInitFunc) sp_fepointlight_init,
60 NULL, /* value_table */
61 };
62 fepointlight_type = g_type_register_static(SP_TYPE_OBJECT, "SPFePointLight", &fepointlight_info, (GTypeFlags)0);
63 }
64 return fepointlight_type;
65 }
67 static void
68 sp_fepointlight_class_init(SPFePointLightClass *klass)
69 {
71 SPObjectClass *sp_object_class = (SPObjectClass *)klass;
73 fePointLight_parent_class = (SPObjectClass*)g_type_class_peek_parent(klass);
75 sp_object_class->build = sp_fepointlight_build;
76 sp_object_class->release = sp_fepointlight_release;
77 sp_object_class->write = sp_fepointlight_write;
78 sp_object_class->set = sp_fepointlight_set;
79 sp_object_class->update = sp_fepointlight_update;
80 }
82 static void
83 sp_fepointlight_init(SPFePointLight *fepointlight)
84 {
85 fepointlight->x = 0;
86 fepointlight->y = 0;
87 fepointlight->z = 0;
89 fepointlight->x_set = FALSE;
90 fepointlight->y_set = FALSE;
91 fepointlight->z_set = FALSE;
92 }
94 /**
95 * Reads the Inkscape::XML::Node, and initializes SPPointLight variables. For this to get called,
96 * our name must be associated with a repr via "sp_object_type_register". Best done through
97 * sp-object-repr.cpp's repr_name_entries array.
98 */
99 static void
100 sp_fepointlight_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
101 {
102 if (((SPObjectClass *) fePointLight_parent_class)->build) {
103 ((SPObjectClass *) fePointLight_parent_class)->build(object, document, repr);
104 }
106 //Read values of key attributes from XML nodes into object.
107 sp_object_read_attr(object, "x");
108 sp_object_read_attr(object, "y");
109 sp_object_read_attr(object, "z");
111 //is this necessary?
112 sp_document_add_resource(document, "fepointlight", object);
113 }
115 /**
116 * Drops any allocated memory.
117 */
118 static void
119 sp_fepointlight_release(SPObject *object)
120 {
121 //SPFePointLight *fepointlight = SP_FEPOINTLIGHT(object);
123 if (SP_OBJECT_DOCUMENT(object)) {
124 /* Unregister ourselves */
125 sp_document_remove_resource(SP_OBJECT_DOCUMENT(object), "fepointlight", SP_OBJECT(object));
126 }
128 //TODO: release resources here
129 }
131 /**
132 * Sets a specific value in the SPFePointLight.
133 */
134 static void
135 sp_fepointlight_set(SPObject *object, unsigned int key, gchar const *value)
136 {
137 SPFePointLight *fepointlight = SP_FEPOINTLIGHT(object);
138 gchar *end_ptr;
139 switch (key) {
140 case SP_ATTR_X:
141 end_ptr = NULL;
142 if (value) {
143 fepointlight->x = g_ascii_strtod(value, &end_ptr);
144 if (end_ptr) {
145 fepointlight->x_set = TRUE;
146 }
147 }
148 if (!value || !end_ptr) {
149 fepointlight->x = 0;
150 fepointlight->x_set = FALSE;
151 }
152 if (object->parent &&
153 (SP_IS_FEDIFFUSELIGHTING(object->parent) ||
154 SP_IS_FESPECULARLIGHTING(object->parent))) {
155 object->parent->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
156 }
157 break;
158 case SP_ATTR_Y:
159 end_ptr = NULL;
160 if (value) {
161 fepointlight->y = g_ascii_strtod(value, &end_ptr);
162 if (end_ptr) {
163 fepointlight->y_set = TRUE;
164 }
165 }
166 if (!value || !end_ptr) {
167 fepointlight->y = 0;
168 fepointlight->y_set = FALSE;
169 }
170 if (object->parent &&
171 (SP_IS_FEDIFFUSELIGHTING(object->parent) ||
172 SP_IS_FESPECULARLIGHTING(object->parent))) {
173 object->parent->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
174 }
175 break;
176 case SP_ATTR_Z:
177 end_ptr = NULL;
178 if (value) {
179 fepointlight->z = g_ascii_strtod(value, &end_ptr);
180 if (end_ptr) {
181 fepointlight->z_set = TRUE;
182 }
183 }
184 if (!value || !end_ptr) {
185 fepointlight->z = 0;
186 fepointlight->z_set = FALSE;
187 }
188 if (object->parent &&
189 (SP_IS_FEDIFFUSELIGHTING(object->parent) ||
190 SP_IS_FESPECULARLIGHTING(object->parent))) {
191 object->parent->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
192 }
193 break;
194 default:
195 // See if any parents need this value.
196 if (((SPObjectClass *) fePointLight_parent_class)->set) {
197 ((SPObjectClass *) fePointLight_parent_class)->set(object, key, value);
198 }
199 break;
200 }
201 }
203 /**
204 * * Receives update notifications.
205 * */
206 static void
207 sp_fepointlight_update(SPObject *object, SPCtx *ctx, guint flags)
208 {
209 SPFePointLight *fePointLight = SP_FEPOINTLIGHT(object);
211 if (flags & SP_OBJECT_MODIFIED_FLAG) {
212 /* do something to trigger redisplay, updates? */
213 sp_object_read_attr(object, "x");
214 sp_object_read_attr(object, "y");
215 sp_object_read_attr(object, "z");
216 }
218 if (((SPObjectClass *) fePointLight_parent_class)->update) {
219 ((SPObjectClass *) fePointLight_parent_class)->update(object, ctx, flags);
220 }
221 }
223 /**
224 * Writes its settings to an incoming repr object, if any.
225 */
226 static Inkscape::XML::Node *
227 sp_fepointlight_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
228 {
229 SPFePointLight *fepointlight = SP_FEPOINTLIGHT(object);
231 if (!repr) {
232 repr = SP_OBJECT_REPR(object)->duplicate(NULL); // FIXME
233 }
235 if (fepointlight->x_set)
236 sp_repr_set_css_double(repr, "x", fepointlight->x);
237 if (fepointlight->y_set)
238 sp_repr_set_css_double(repr, "y", fepointlight->y);
239 if (fepointlight->z_set)
240 sp_repr_set_css_double(repr, "z", fepointlight->z);
242 if (((SPObjectClass *) fePointLight_parent_class)->write) {
243 ((SPObjectClass *) fePointLight_parent_class)->write(object, repr, flags);
244 }
246 return repr;
247 }
249 /*
250 Local Variables:
251 mode:c++
252 c-file-style:"stroustrup"
253 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
254 indent-tabs-mode:nil
255 fill-column:99
256 End:
257 */
258 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :