1 /* Fo
2 * fo-property-character.c: 'character' property
3 *
4 * Copyright (C) 2001 Sun Microsystems
5 * Copyright (C) 2007 Menteith Consulting Ltd
6 *
7 * See COPYING for the status of this software.
8 */
9
10 #include <string.h>
11 #include "fo-utils.h"
12 #include "fo-context.h"
13 #include "datatype/fo-datatype.h"
14 #include "property/fo-property-private.h"
15 #include "property/fo-property-font-size.h"
16 #include "property/fo-property-character.h"
17 #include "property/fo-property-util.h"
18
19 /* character */
20 /* Inherited: FALSE */
21 /* Shorthand: FALSE */
22 /* <character> */
23 /* Initial value: N/A, value is required */
24
25 struct _FoPropertyCharacter
26 {
27 FoProperty parent_instance;
28 };
29
30 struct _FoPropertyCharacterClass
31 {
32 FoPropertyClass parent_class;
33 };
34
35 static void fo_property_character_init (FoPropertyCharacter *property_character);
36 static void fo_property_character_class_init (FoPropertyCharacterClass *klass);
37 static void fo_property_character_finalize (GObject *object);
38
39 static FoDatatype* fo_property_character_validate (FoDatatype *datatype,
40 FoContext *context,
41 GError **error);
42
43 static const gchar class_name[] = "character";
44 static gpointer parent_class;
45
46 /**
47 * fo_property_character_get_type:
48 *
49 * Register the #FoPropertyCharacter type if not already registered and
50 * return its #GType value.
51 *
52 * Return value: #GType of #FoPropertyCharacter.
53 **/
54 GType
fo_property_character_get_type(void)55 fo_property_character_get_type (void)
56 {
57 static GType object_type = 0;
58
59 if (!object_type)
60 {
61 static const GTypeInfo object_info =
62 {
63 sizeof (FoPropertyCharacterClass),
64 NULL, /* base_init */
65 NULL, /* base_finalize */
66 (GClassInitFunc) fo_property_character_class_init,
67 NULL, /* class_finalize */
68 NULL, /* class_data */
69 sizeof (FoPropertyCharacter),
70 0, /* n_preallocs */
71 (GInstanceInitFunc) fo_property_character_init,
72 NULL /* value_table */
73 };
74
75 object_type = g_type_register_static (FO_TYPE_PROPERTY,
76 class_name,
77 &object_info, 0);
78 }
79
80 return object_type;
81 }
82
83 /**
84 * fo_property_character_init:
85 * @character: #FoPropertyCharacter object to initialise.
86 *
87 * Implements #GInstanceInitFunc for #FoPropertyCharacter.
88 **/
89 void
fo_property_character_init(FoPropertyCharacter * character)90 fo_property_character_init (FoPropertyCharacter *character)
91 {
92 FO_PROPERTY (character)->value =
93 NULL;
94 }
95
96 /**
97 * fo_property_character_class_init:
98 * @klass: #FoPropertyCharacterClass object to initialise.
99 *
100 * Implements #GClassInitFunc for #FoPropertyCharacterClass.
101 **/
102 void
fo_property_character_class_init(FoPropertyCharacterClass * klass)103 fo_property_character_class_init (FoPropertyCharacterClass *klass)
104 {
105 GObjectClass *object_class = G_OBJECT_CLASS (klass);
106 FoPropertyClass *property_class = FO_PROPERTY_CLASS (klass);
107
108 parent_class = g_type_class_peek_parent (klass);
109
110 object_class->finalize = fo_property_character_finalize;
111
112 property_class->is_inherited = FALSE;
113 property_class->is_shorthand = FALSE;
114 property_class->resolve_enum =
115 fo_property_util_resolve_no_enum;
116 property_class->validate =
117 fo_property_character_validate;
118 property_class->get_initial =
119 fo_property_character_get_initial;
120 }
121
122 /**
123 * fo_property_character_finalize:
124 * @object: #FoPropertyCharacter object to finalize.
125 *
126 * Implements #GObjectFinalizeFunc for #FoPropertyCharacter.
127 **/
128 void
fo_property_character_finalize(GObject * object)129 fo_property_character_finalize (GObject *object)
130 {
131 FoPropertyCharacter *character;
132
133 character = FO_PROPERTY_CHARACTER (object);
134
135 G_OBJECT_CLASS (parent_class)->finalize (object);
136 }
137
138
139 /**
140 * fo_property_character_new:
141 *
142 * Creates a new #FoPropertyCharacter initialized to default value.
143 *
144 * Return value: the new #FoPropertyCharacter.
145 **/
146 FoProperty*
fo_property_character_new(void)147 fo_property_character_new (void)
148 {
149 FoProperty* character;
150
151 character =
152 FO_PROPERTY (g_object_new (fo_property_character_get_type (),
153 NULL));
154
155 return character;
156 }
157
158 /**
159 * fo_property_character_validate:
160 * @datatype: #FoDatatype to be validated against allowed datatypes and
161 * values for current property.
162 * @context: #FoContext object from which to possibly inherit values.
163 * @error: Information about any error that has occurred.
164 *
165 * Validates @datatype against allowed values. Returns @datatype, a
166 * replacement datatype value, or NULL if validation failed.
167 *
168 * Return value: Valid datatype value or NULL.
169 **/
170 FoDatatype*
fo_property_character_validate(FoDatatype * datatype,FoContext * context,GError ** error)171 fo_property_character_validate (FoDatatype *datatype,
172 FoContext *context,
173 GError **error)
174 {
175 FoDatatype *new_datatype;
176
177 g_return_val_if_fail (datatype != NULL, NULL);
178 g_return_val_if_fail (FO_IS_DATATYPE (datatype), NULL);
179 g_return_val_if_fail (context != NULL, NULL);
180 g_return_val_if_fail (FO_IS_CONTEXT (context), NULL);
181 g_return_val_if_fail (error == NULL || *error == NULL, NULL);
182
183 if (FO_IS_CHAR (datatype))
184 {
185 return datatype;
186 }
187 else if (FO_IS_NAME (datatype))
188 {
189 new_datatype = fo_char_new_with_value (fo_name_get_value (datatype));
190
191 g_object_unref (datatype);
192
193 return (new_datatype);
194 }
195 else if (FO_IS_STRING (datatype))
196 {
197 new_datatype = fo_char_new_with_value (fo_string_get_value (datatype));
198
199 g_object_unref (datatype);
200
201 return (new_datatype);
202 }
203 else
204 {
205 gchar *datatype_sprintf = fo_object_sprintf (datatype);
206
207 g_set_error (error,
208 FO_FO_ERROR,
209 FO_FO_ERROR_DATATYPE,
210 _(fo_fo_error_messages[FO_FO_ERROR_DATATYPE]),
211 class_name,
212 datatype_sprintf,
213 g_type_name (G_TYPE_FROM_INSTANCE (datatype)));
214
215 g_object_unref (datatype);
216
217 g_free (datatype_sprintf);
218
219 return NULL;
220 }
221 }
222
223 /**
224 * fo_property_character_get_initial:
225 *
226 * Get an instance of the property with the correct initial value.
227 *
228 * Return value: An instance of the property.
229 **/
230 FoProperty*
fo_property_character_get_initial(void)231 fo_property_character_get_initial (void)
232 {
233 static FoProperty *character = NULL;
234
235 if (character == NULL)
236 {
237 character =
238 fo_property_character_new ();
239 }
240
241 return character;
242 }
243