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
|
#include <stdlib.h>
#include <string.h>
#include "eve.h"
#include "eve_text.h"
#define TEXT_ATTR 0x0A
#define TEXT_CRSR 0x02DB
#define LINE_IDX_ADD(l1,l2,s) (((((l1) + (l2)) % (s)) + (s)) % (s))
#define LINE_IDX_SUB(l1,l2,s) (((((l1) - (l2)) % (s)) + (s)) % (s))
#define LINE_IDX_LTE(l1,l2,s,h) (LINE_IDX_SUB(l2,l1,s) <= (s) - (h))
#define LINE_IDX_DIFF(l1,l2,s) ((l1) > (l2) ? (l1) - (l2) : (s) + (l1) - (l2))
static void scroll1(EVEText *box) {
box->line0 = (box->line0 + 1) % box->line_size;
eve_cmd(CMD_MEMSET, "www", box->mem_addr + box->ch_idx, 0x0, box->w * 2);
eve_cmd_exec(1);
eve_text_update(box);
box->dirty = 1;
}
void eve_text_init(EVEText *box, EVERect *g, uint16_t w, uint16_t h, uint16_t line_size, uint32_t mem_addr, uint32_t *mem_next) {
double scale_x, scale_y;
if (g->w == 0) {
g->w = w * 8;
}
if (g->h == 0) {
g->h = h * 16;
}
scale_x = (double)g->w / (w * 8);
scale_y = (double)g->h / (h * 16);
box->g = *g;
box->w = w;
box->h = h;
box->tag = EVE_NOTAG;
box->transform_a = 256 / scale_x;
box->transform_e = 256 / scale_y;
box->ch_w = scale_x * 8;
box->ch_h = scale_y * 16;
box->dl_size = 14;
box->mem_addr = mem_addr;
box->line_size = line_size;
box->line0 = 0;
box->line_top = -1;
box->line_top0 = -1;
box->ch_idx = 0;
if (box->transform_a != 256) {
box->dl_size += 1;
}
if (box->transform_e != 256) {
box->dl_size += 1;
}
eve_cmd(CMD_MEMSET, "www", mem_addr, 0x0, box->w * 2 * box->line_size);
eve_cmd_exec(1);
eve_text_update(box);
*mem_next = box->mem_addr + box->w * 2 * box->line_size + box->dl_size * 4;
}
void eve_text_update(EVEText *box) {
int text_h1;
int text_h2;
int line_top;
line_top = box->line_top >= 0 ? box->line_top : box->line0;
if (line_top + box->h > box->line_size) {
text_h1 = box->line_size - line_top;
text_h2 = box->h - text_h1;
} else {
text_h1 = box->h;
text_h2 = 0;
}
eve_dl_start(box->mem_addr + box->w * 2 * box->line_size, 1);
eve_dl_write(BEGIN(EVE_BITMAPS));
eve_dl_write(VERTEX_FORMAT(0));
eve_dl_write(BITMAP_HANDLE(15));
if (box->transform_a != 256) {
eve_dl_write(BITMAP_TRANSFORM_A(box->transform_a));
}
if (box->transform_e != 256) {
eve_dl_write(BITMAP_TRANSFORM_E(box->transform_e));
}
eve_dl_write(BITMAP_SOURCE(box->mem_addr + line_top * box->w * 2));
eve_dl_write(BITMAP_LAYOUT(EVE_TEXTVGA, box->w * 2, text_h1));
eve_dl_write(BITMAP_SIZE(EVE_NEAREST, EVE_BORDER, EVE_BORDER, box->w * box->ch_w, text_h1 * box->ch_h));
eve_dl_write(BITMAP_SIZE_H(box->w * box->ch_w, text_h1 * box->ch_h));
eve_dl_write(VERTEX2F(box->g.x, box->g.y));
if (text_h2) {
eve_dl_write(BITMAP_SOURCE(box->mem_addr));
eve_dl_write(BITMAP_LAYOUT(EVE_TEXTVGA, box->w * 2, text_h2));
eve_dl_write(BITMAP_SIZE(EVE_NEAREST, EVE_BORDER, EVE_BORDER, box->w * box->ch_w, text_h2 * box->ch_h));
eve_dl_write(BITMAP_SIZE_H(box->w * box->ch_w, text_h2 * box->ch_h));
eve_dl_write(VERTEX2F(box->g.x, box->g.y + text_h1 * box->ch_h));
} else {
eve_dl_write(NOP());
eve_dl_write(NOP());
eve_dl_write(NOP());
eve_dl_write(NOP());
eve_dl_write(NOP());
}
eve_dl_write(END());
eve_dl_end();
}
void eve_text_scroll0(EVEText *box) {
if (box->line_top >= 0) {
box->line_top = -1;
box->line_top0 = -1;
eve_text_update(box);
}
}
int eve_text_touch(EVEText *box, EVETouch *touch, uint16_t evt, uint8_t tag0) {
evt = eve_touch_evt(touch, evt, tag0, box->tag, 1);
if (touch && evt) {
if ((evt & EVE_TOUCH_ETYPE_TRACK_START) && (box->line_top < 0)) {
box->line_top = box->line0;
box->line_top0 = box->line0;
}
if ((evt & EVE_TOUCH_ETYPE_TRACK) && (box->line_top0 >=0)) {
int line = LINE_IDX_ADD(box->line_top0, (touch->y0 - touch->y) / box->ch_h, box->line_size);
if (LINE_IDX_LTE(line, box->line0, box->line_size, box->h)) {
box->line_top = line;
eve_text_update(box);
}
}
if (evt & EVE_TOUCH_ETYPE_TRACK_STOP) {
box->line_top0 = box->line_top;
}
return 1;
}
return 0;
}
uint8_t eve_text_draw(EVEText *box, uint8_t tag) {
eve_cmd_dl(SAVE_CONTEXT());
box->tag = tag;
if (tag != EVE_NOTAG) {
eve_cmd_dl(TAG(tag));
eve_touch_set_opt(tag, EVE_TOUCH_OPT_TRACK | EVE_TOUCH_OPT_TRACK_EXT_Y);
tag++;
}
eve_cmd(CMD_APPEND, "ww", box->mem_addr + box->w * 2 * box->line_size, box->dl_size * 4);
eve_cmd_dl(RESTORE_CONTEXT());
return tag;
}
void eve_text_putc(EVEText *box, int c) {
int line_c, line_n;
switch (c) {
case '\b':
eve_text_backspace(box);
break;
case '\r':
case '\n':
eve_text_newline(box);
break;
default:
line_c = box->ch_idx / 2 / box->w;
eve_write16(box->mem_addr + box->ch_idx, 0x0200 | (c & 0xff));
box->ch_idx = (box->ch_idx + 2) % (box->line_size * box->w * 2);
eve_write16(box->mem_addr + box->ch_idx, TEXT_CRSR);
line_n = box->ch_idx / 2 / box->w;
if ((line_c != line_n) && (LINE_IDX_DIFF(line_n, box->line0, box->line_size) == box->h)) scroll1(box);
break;
}
}
void eve_text_backspace(EVEText *box) {
uint16_t c;
eve_write16(box->mem_addr + box->ch_idx, 0);
box->ch_idx = (box->ch_idx - 2) % (box->line_size * box->w * 2);
if (eve_read16(box->mem_addr + box->ch_idx) == 0) {
box->ch_idx = (box->ch_idx + 2) % (box->line_size * box->w * 2);
}
eve_write16(box->mem_addr + box->ch_idx, TEXT_CRSR);
}
void eve_text_newline(EVEText *box) {
int line = (box->ch_idx / 2 / box->w + 1) % box->line_size;
eve_write16(box->mem_addr + box->ch_idx, 0);
box->ch_idx = line * box->w * 2;
if (LINE_IDX_DIFF(line, box->line0, box->line_size) == box->h) scroll1(box);
eve_write16(box->mem_addr + box->ch_idx, TEXT_CRSR);
}
void eve_text_puts(EVEText *box, char *s) {
while (*s) {
eve_text_putc(box, *s);
s++;
}
}
|
