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
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247#ifndef NK_CONSOLE_RADIO_H__
#define NK_CONSOLE_RADIO_H__
/**
* Data for the radio button.
*
* @see nk_console_radio()
*/
typedef struct nk_console_radio_data {
int* selected; // The selected index for the radio button within the radio group.
} nk_console_radio_data;
#if defined(__cplusplus)
extern "C" {
#endif
/**
* Creates a radio button. Use the same selected pointer to indicate the same radio buttons within the radio group.
*
* @param parent The parent widget.
* @param label The label for the radio button.
* @param selected The selected index for the radio button. Provide the same selected index for all radio buttons in the group.
* @return The radio button widget.
*/
NK_API nk_console* nk_console_radio(nk_console* parent, const char* label, int* selected);
/**
* Renders the radio button.
*
* @param widget The radio button widget.
* @return The bounds of the radio button.
*/
NK_API struct nk_rect nk_console_radio_render(nk_console* widget);
/**
* Returns true if the radio button is the selected radio in the group.
*
* @param widget The radio button widget.
* @return True if the radio button is selected.
*/
NK_API nk_bool nk_console_radio_is_selected(nk_console* widget);
/**
* Returns the index of the radio button in the group.
*
* @param widget The radio button widget.
* @return The index of the radio button.
*/
NK_API int nk_console_radio_index(nk_console* widget);
#if defined(__cplusplus)
}
#endif
#endif // NK_CONSOLE_RADIO_H__
#if defined(NK_CONSOLE_IMPLEMENTATION) && !defined(NK_CONSOLE_HEADER_ONLY)
#ifndef NK_CONSOLE_RADIO_IMPLEMENTATION_ONCE
#define NK_CONSOLE_RADIO_IMPLEMENTATION_ONCE
#if defined(__cplusplus)
extern "C" {
#endif
NK_API int nk_console_radio_index(nk_console* widget) {
if (widget == NULL || widget->data == NULL || widget->parent == NULL || widget->parent->children == NULL) {
return -1;
}
nk_console_radio_data* data = (nk_console_radio_data*)widget->data;
if (data->selected == NULL) {
return -1;
}
int index = 0;
for (size_t i = 0; i < cvector_size(widget->parent->children); i++) {
nk_console* child = widget->parent->children[i];
if (child->type == NK_CONSOLE_RADIO && child->data != NULL) {
nk_console_radio_data* child_data = (nk_console_radio_data*)child->data;
if (data->selected == child_data->selected) {
if (widget == child) {
return index;
}
index++;
}
}
}
return -1;
}
NK_API nk_bool nk_console_radio_is_selected(nk_console* widget) {
if (widget == NULL || widget->data == NULL) {
return nk_false;
}
int index = nk_console_radio_index(widget);
if (index < 0) {
return nk_false;
}
nk_console_radio_data* data = (nk_console_radio_data*)widget->data;
if (data->selected == NULL) {
return nk_false;
}
return *data->selected == index;
}
NK_API struct nk_rect nk_console_radio_render(nk_console* widget) {
if (widget == NULL || widget->label == NULL || widget->data == NULL) {
return nk_recti(0, 0, 0, 0);
}
nk_console* top = nk_console_get_top(widget);
nk_console_top_data* top_data = (nk_console_top_data*)top->data;
nk_console_radio_data* data = (nk_console_radio_data*)widget->data;
if (data->selected == NULL) {
return nk_recti(0, 0, 0, 0);
}
// Set up the layout
nk_console_layout_widget(widget);
// Grab some initial contexts for the radio button
int current_value = *data->selected;
nk_bool active = nk_console_selectable(widget) && nk_console_is_active_widget(widget);
int index = nk_console_radio_index(widget);
nk_bool selected = nk_console_radio_is_selected(widget);
// Allow changing the radio value.
if (active && !selected && !top_data->input_processed) {
if (nk_console_button_pushed(top, NK_GAMEPAD_BUTTON_A)) {
*data->selected = index;
selected = nk_true;
top_data->input_processed = nk_true;
nk_console_trigger_event(widget, NK_CONSOLE_EVENT_CLICKED);
}
}
// Release the disabled state if needed.
if (widget->disabled) {
nk_widget_disable_begin(widget->ctx);
}
// Style
struct nk_style_item style = widget->ctx->style.option.normal;
if (active) {
if (selected) {
widget->ctx->style.option.normal = widget->ctx->style.option.active;
}
else {
widget->ctx->style.option.normal = widget->ctx->style.option.hover;
}
}
// Display the ratio button
nk_bool radio_active = selected;
if (widget->alignment != 0) {
nk_flags text_alignment = 0;
nk_flags widget_alignment = 0;
switch (widget->alignment) {
case NK_TEXT_LEFT:
text_alignment = NK_TEXT_ALIGN_LEFT;
widget_alignment = NK_WIDGET_ALIGN_RIGHT;
break;
case NK_TEXT_RIGHT:
text_alignment = NK_TEXT_ALIGN_RIGHT;
widget_alignment = NK_WIDGET_ALIGN_LEFT;
break;
case NK_TEXT_CENTERED:
text_alignment = NK_TEXT_ALIGN_CENTERED;
widget_alignment = NK_WIDGET_ALIGN_CENTERED;
break;
}
if (widget->label_length > 0) {
nk_radio_text_align(widget->ctx, widget->label, widget->label_length, &radio_active, widget_alignment, text_alignment);
}
else {
nk_radio_label_align(widget->ctx, widget->label, &radio_active, widget_alignment, text_alignment);
}
}
else {
if (widget->label_length > 0) {
nk_radio_text(widget->ctx, widget->label, widget->label_length, &radio_active);
}
else {
nk_radio_label(widget->ctx, widget->label, &radio_active);
}
}
if (radio_active == nk_true && radio_active != selected) {
*data->selected = index;
nk_console_trigger_event(widget, NK_CONSOLE_EVENT_CLICKED);
top_data->input_processed = nk_true;
}
// Restore styles
widget->ctx->style.option.normal = style;
// Release the disabled state if needed.
if (widget->disabled) {
nk_widget_disable_end(widget->ctx);
}
// Trigger the value changed event
if (current_value != *data->selected) {
nk_console_trigger_event(widget, NK_CONSOLE_EVENT_CHANGED);
}
// Since labels don't really have widget bounds, we get the bounds after the label is displayed as a work-around.
struct nk_rect widget_bounds = nk_layout_widget_bounds(widget->ctx);
// Allow switching up/down in widgets
if (active) {
nk_console_check_up_down(widget, widget_bounds);
nk_console_check_tooltip(widget);
}
return widget_bounds;
}
NK_API nk_console* nk_console_radio(nk_console* parent, const char* label, int* selected) {
if (parent == NULL || selected == NULL) {
return NULL;
}
nk_console_radio_data* data = (nk_console_radio_data*)NK_CONSOLE_MALLOC(nk_handle_id(0), NULL, sizeof(nk_console_radio_data));
nk_zero(data, sizeof(nk_console_radio_data));
data->selected = selected;
nk_console* widget = nk_console_label(parent, label);
widget->type = NK_CONSOLE_RADIO;
widget->selectable = nk_true;
widget->columns = 1;
widget->data = data;
widget->render = nk_console_radio_render;
widget->alignment = 0;
return widget;
}
#if defined(__cplusplus)
}
#endif
#endif // NK_CONSOLE_RADIO_IMPLEMENTATION_ONCE
#endif // NK_CONSOLE_IMPLEMENTATION