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Add help dialog to Blinkenlights emulator

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This commit is contained in:
Justine Tunney 2021-02-19 16:56:06 -08:00
parent 02b4a5c824
commit 5f1415af3a
9 changed files with 248 additions and 147 deletions
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45
tool/build/lib/message.c
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@ -17,30 +17,51 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/log/check.h"
#include "libc/macros.h"
#include "libc/math.h"
#include "libc/mem/mem.h"
#include "libc/str/str.h"
#include "libc/unicode/unicode.h"
#include "tool/build/lib/buffer.h"
#include "tool/build/lib/lines.h"
#include "tool/build/lib/panel.h"
static int GetWidthOfLongestLine(struct Lines *lines) {
int i, w, m;
for (m = i = 0; i < lines->n; ++i) {
w = strwidth(lines->p[i], 0);
m = MAX(m, w);
}
return m;
}
void PrintMessageBox(int fd, const char *msg, long tyn, long txn) {
char buf[1];
struct Buffer b;
int i, w, h, x, y;
h = 2 + 1 + 2;
w = 3 + strlen(msg) + 3;
struct Lines *lines;
lines = NewLines();
AppendLines(lines, msg);
h = 3 + lines->n + 3;
w = 4 + GetWidthOfLongestLine(lines) + 4;
x = lrint(txn / 2. - w / 2.);
y = lrint(tyn / 2. - h / 2.);
memset(&b, 0, sizeof(b));
AppendFmt(&b, "\e[%d;%dH╔", y++, x);
for (i = 0; i < w - 2; ++i) AppendStr(&b, "═");
AppendStr(&b, "╗");
AppendFmt(&b, "\e[%d;%dH║ %-*s ║", y++, x, w - 6, "");
AppendFmt(&b, "\e[%d;%dH║ %-*s ║", y++, x, w - 6, msg);
AppendFmt(&b, "\e[%d;%dH║ %-*s ║", y++, x, w - 6, "");
AppendFmt(&b, "\e[%d;%dH╚", y++, x);
for (i = 0; i < w - 2; ++i) AppendStr(&b, "═");
AppendStr(&b, "╝");
AppendFmt(&b, "\e[%d;%dH", y++, x);
for (i = 0; i < w; ++i) AppendStr(&b, " ");
AppendFmt(&b, "\e[%d;%dH ╔", y++, x);
for (i = 0; i < w - 4; ++i) AppendStr(&b, "═");
AppendStr(&b, "╗ ");
AppendFmt(&b, "\e[%d;%dH ║ %-*s ║ ", y++, x, w - 8, "");
for (i = 0; i < lines->n; ++i) {
AppendFmt(&b, "\e[%d;%dH ║ %-*s ║ ", y++, x, w - 8, lines->p[i]);
}
FreeLines(lines);
AppendFmt(&b, "\e[%d;%dH ║ %-*s ║ ", y++, x, w - 8, "");
AppendFmt(&b, "\e[%d;%dH ╚", y++, x);
for (i = 0; i < w - 4; ++i) AppendStr(&b, "═");
AppendStr(&b, "╝ ");
AppendFmt(&b, "\e[%d;%dH", y++, x);
for (i = 0; i < w; ++i) AppendStr(&b, " ");
CHECK_NE(-1, WriteBuffer(&b, fd));
free(b.p);
}