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
|
// SPDX-License-Identifier: LGPL-2.1-or-later
/* SPDX-FileCopyrightText: 2006-2015 Simon Wunderlich <sw@simonwunderlich.de>
*/
#include <s3d.h>
#include <s3dw.h>
#include <s3dw_int.h>
#include <s3dlib.h>
#include <stdlib.h> /* malloc() */
#include <string.h> /* strdup() */
/* draw and setup the button */
void s3dw_button_draw(s3dw_widget *widget)
{
s3dw_button *button = (s3dw_button *)widget;
float length;
float vertices[8*3];
uint32_t polygons[10*4] = {
0, 4, 5, 0,
0, 5, 1, 0,
1, 5, 6, 0,
1, 6, 2, 0,
2, 6, 7, 0,
2, 7, 3, 0,
3, 7, 4, 0,
3, 4, 0, 0,
4, 7, 6, 0,
4, 6, 5, 0
};
button->oid_text = s3d_draw_string(button->text, &length);
s3d_pep_materials_a(button->oid_text, widget->style->text_mat, 1);
/* width of the button depends on the length of the text */
vertices[0*3+0] = 0.0;
vertices[0*3+1] = 0.0;
vertices[0*3+2] = 0.0;
vertices[1*3+0] = 0.0;
vertices[1*3+1] = -2.0;
vertices[1*3+2] = 0.0;
vertices[2*3+0] = length + 1;
vertices[2*3+1] = -2.0;
vertices[2*3+2] = 0.0;
vertices[3*3+0] = length + 1;
vertices[3*3+1] = 0.0;
vertices[3*3+2] = 0.0;
vertices[4*3+0] = 0.25;
vertices[4*3+1] = -0.25;
vertices[4*3+2] = 0.25;
vertices[5*3+0] = 0.25;
vertices[5*3+1] = -1.75;
vertices[5*3+2] = 0.25;
vertices[6*3+0] = length + 0.75;
vertices[6*3+1] = -1.75;
vertices[6*3+2] = 0.25;
vertices[7*3+0] = length + 0.75;
vertices[7*3+1] = -0.25;
vertices[7*3+2] = 0.25;
widget->oid = s3d_new_object();
s3d_push_materials_a(widget->oid, widget->style->input_mat, 1);
s3d_push_vertices(widget->oid, vertices, 8);
s3d_push_polygons(widget->oid, polygons, 10);
s3d_link(widget->oid, widget->parent->oid);
s3d_link(button->oid_text, widget->oid);
s3d_translate(button->oid_text, 0.5, -1.5, 0.30);
s3d_translate(widget->oid, widget->x, -widget->y, 0);
widget->width = length + 1;
widget->height = 2;
}
/** \brief create a new button in the surface
*
* Creates a new button on the surface, with "text" written on it and the upper
* left corner at (posx,posy) on the surface.
*
* See s3dw_button for information about callbacks which may be defined.
*/
s3dw_button *s3dw_button_new(const s3dw_surface *surface, const char *text, float posx, float posy)
{
s3dw_button *button;
s3dw_widget *widget;
button = (s3dw_button *)malloc(sizeof(s3dw_button));
button->text = strdup(text);
button->onclick = s3dw_nothing;
widget = s3dw_widget_new((s3dw_widget *)button);
widget->type = S3DW_TBUTTON;
widget->x = posx;
widget->y = posy;
widget->style = ((s3dw_widget *)surface)->style;
s3dw_widget_append((s3dw_widget *)surface, widget);
s3dw_button_draw(widget);
return button;
}
/* show, make visible */
void s3dw_button_show(s3dw_widget *widget)
{
s3dw_button *button = (s3dw_button *)widget;
s3d_flags_on(widget->oid, S3D_OF_VISIBLE | S3D_OF_SELECTABLE);
s3d_flags_on(button->oid_text, S3D_OF_VISIBLE | S3D_OF_SELECTABLE);
}
/* hide */
void s3dw_button_hide(s3dw_widget *widget)
{
s3dw_button *button = (s3dw_button *)widget;
s3d_flags_off(widget->oid, S3D_OF_VISIBLE | S3D_OF_SELECTABLE);
s3d_flags_off(button->oid_text, S3D_OF_VISIBLE | S3D_OF_SELECTABLE);
}
/* destroy s3d structures of the button */
void s3dw_button_erase(s3dw_widget *widget)
{
s3dw_button *button = (s3dw_button *)widget;
s3d_del_object(button->oid_text);
s3d_del_object(widget->oid);
}
/* destroy the button */
void s3dw_button_destroy(s3dw_widget *widget)
{
s3dw_button *button = (s3dw_button *)widget;
s3dw_button_erase(widget);
free(button->text);
free(button);
}
/* handle key events */
int s3dw_button_event_key(s3dw_widget *S3DUNUSED(widget), struct s3d_key_event *S3DUNUSED(keys))
{
return 0;
}
/* handle click on a button */
int s3dw_button_event_click(s3dw_widget *widget, uint32_t oid)
{
s3dw_button *button = (s3dw_button *)widget;
if ((button->oid_text == oid) || (widget->oid == oid)) {
button->onclick(widget);
return 1;
}
return 0;
}
|
