1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
|
/*
* ld-symbol.c
*
* This file is a part of logdiag.
* Copyright Přemysl Janouch 2010, 2011
*
* See the file LICENSE for licensing information.
*
*/
#include "liblogdiag.h"
#include "config.h"
/**
* SECTION:ld-symbol
* @short_description: A symbol
* @see_also: #LdDiagramSymbol, #LdDiagramView
*
* #LdSymbol represents a symbol to be drawn by #LdDiagramView.
*
* All implementations of this abstract class are required to use
* cairo_save() and cairo_restore() when drawing to store the state.
*/
enum
{
PROP_0,
PROP_NAME,
PROP_HUMAN_NAME,
PROP_AREA,
PROP_TERMINALS
};
static void ld_symbol_get_property (GObject *object, guint property_id,
GValue *value, GParamSpec *pspec);
static void ld_symbol_set_property (GObject *object, guint property_id,
const GValue *value, GParamSpec *pspec);
G_DEFINE_ABSTRACT_TYPE (LdSymbol, ld_symbol, G_TYPE_OBJECT);
static void
ld_symbol_class_init (LdSymbolClass *klass)
{
GObjectClass *object_class;
GParamSpec *pspec;
object_class = G_OBJECT_CLASS (klass);
object_class->get_property = ld_symbol_get_property;
object_class->set_property = ld_symbol_set_property;
/**
* LdSymbol:name:
*
* The name of this symbol.
*/
pspec = g_param_spec_string ("name", "Name",
"The name of this symbol.",
"", G_PARAM_READABLE);
g_object_class_install_property (object_class, PROP_NAME, pspec);
/**
* LdSymbol:human-name:
*
* The localized human name of this symbol.
*/
pspec = g_param_spec_string ("human-name", "Human name",
"The localized human name of this symbol.",
"", G_PARAM_READABLE);
g_object_class_install_property (object_class, PROP_HUMAN_NAME, pspec);
/**
* LdSymbol:area:
*
* The area of this symbol.
*/
pspec = g_param_spec_boxed ("area", "Area",
"The area of this symbol.",
LD_TYPE_RECTANGLE, G_PARAM_READABLE);
g_object_class_install_property (object_class, PROP_AREA, pspec);
/**
* LdSymbol:terminals:
*
* A point array that specifies terminals of this symbol.
*/
pspec = g_param_spec_boxed ("terminals", "Terminals",
"A point array that specifies terminals of this symbol.",
LD_TYPE_POINT_ARRAY, G_PARAM_READABLE);
g_object_class_install_property (object_class, PROP_TERMINALS, pspec);
}
static void
ld_symbol_init (LdSymbol *self)
{
}
static void
ld_symbol_get_property (GObject *object, guint property_id,
GValue *value, GParamSpec *pspec)
{
LdSymbol *self;
self = LD_SYMBOL (object);
switch (property_id)
{
case PROP_NAME:
g_value_set_string (value, ld_symbol_get_name (self));
break;
case PROP_HUMAN_NAME:
g_value_set_string (value, ld_symbol_get_human_name (self));
break;
case PROP_AREA:
{
LdRectangle area;
ld_symbol_get_area (self, &area);
g_value_set_boxed (value, &area);
}
break;
case PROP_TERMINALS:
g_value_set_boxed (value, ld_symbol_get_terminals (self));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
ld_symbol_set_property (GObject *object, guint property_id,
const GValue *value, GParamSpec *pspec)
{
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
/**
* ld_symbol_get_name:
* @self: an #LdSymbol object.
*
* Return value: the name of the symbol.
*/
const gchar *
ld_symbol_get_name (LdSymbol *self)
{
LdSymbolClass *klass;
g_return_val_if_fail (LD_IS_SYMBOL (self), NULL);
klass = LD_SYMBOL_GET_CLASS (self);
g_return_val_if_fail (klass->get_name != NULL, NULL);
return klass->get_name (self);
}
/**
* ld_symbol_get_human_name:
* @self: an #LdSymbol object.
*
* Return value: the localised human name of the symbol.
*/
const gchar *
ld_symbol_get_human_name (LdSymbol *self)
{
LdSymbolClass *klass;
g_return_val_if_fail (LD_IS_SYMBOL (self), NULL);
klass = LD_SYMBOL_GET_CLASS (self);
g_return_val_if_fail (klass->get_human_name != NULL, NULL);
return klass->get_human_name (self);
}
/**
* ld_symbol_get_area:
* @self: an #LdSymbol object.
* @area: where the area of the symbol will be returned.
*
* Get the area of the symbol.
*/
void
ld_symbol_get_area (LdSymbol *self, LdRectangle *area)
{
LdSymbolClass *klass;
g_return_if_fail (LD_IS_SYMBOL (self));
g_return_if_fail (area != NULL);
klass = LD_SYMBOL_GET_CLASS (self);
g_return_if_fail (klass->get_area != NULL);
klass->get_area (self, area);
}
/**
* ld_symbol_get_terminals:
* @self: an #LdSymbol object.
*
* Get a list of symbol terminals.
*
* Return value: an #LdPointArray structure.
*/
const LdPointArray *
ld_symbol_get_terminals (LdSymbol *self)
{
LdSymbolClass *klass;
g_return_val_if_fail (LD_IS_SYMBOL (self), NULL);
klass = LD_SYMBOL_GET_CLASS (self);
g_return_val_if_fail (klass->get_terminals != NULL, NULL);
return klass->get_terminals (self);
}
/**
* ld_symbol_draw:
* @self: an #LdSymbol object.
* @cr: a cairo surface to be drawn on.
*
* Draw the symbol onto a Cairo surface.
*/
void
ld_symbol_draw (LdSymbol *self, cairo_t *cr)
{
LdSymbolClass *klass;
g_return_if_fail (LD_IS_SYMBOL (self));
g_return_if_fail (cr != NULL);
klass = LD_SYMBOL_GET_CLASS (self);
g_return_if_fail (klass->draw != NULL);
klass->draw (self, cr);
}
|
