Bruce/ascii-table
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Bruce Hill 2019-01-05 22:26:00 -08:00
parent a9062812aa
commit b3264e954c
1 changed files with 32 additions and 21 deletions
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53
ascii.c
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@ -91,6 +91,7 @@ static inline void shift(int dy, int dx) {
move(y+dy, x+dx); move(y+dy, x+dx);
} }
// Same as printw, except it doesn't do text wrapping, and it sets attributes
#define printwattrs(_attrs, ...) \ #define printwattrs(_attrs, ...) \
{ char _buf[W+1];\ { char _buf[W+1];\
chtype _bufch[W+1];\ chtype _bufch[W+1];\
@ -132,7 +133,7 @@ static void redraw(int selected)
int selectedx = (selected / (H-2)) * COL_WIDTH; int selectedx = (selected / (H-2)) * COL_WIDTH;
int scrollx = (selectedx + COL_WIDTH < W) ? 0 : (((selectedx + COL_WIDTH) - W)/COL_WIDTH+1)*COL_WIDTH; int scrollx = (selectedx + COL_WIDTH < W) ? 0 : (((selectedx + COL_WIDTH) - W)/COL_WIDTH+1)*COL_WIDTH;
if (last_selected == -1 || last_scrollx != scrollx || last_W != W || last_H != H) { if (last_selected == -1 || last_scrollx != scrollx || last_W != W || last_H != H) {
// Redraw everything // Redraw all the entries
erase(); erase();
for (int i = 0; i < 128; i++) { for (int i = 0; i < 128; i++) {
draw_entry(i, scrollx, i == selected ? A_REVERSE : 0); draw_entry(i, scrollx, i == selected ? A_REVERSE : 0);
@ -141,12 +142,15 @@ static void redraw(int selected)
last_H = H; last_H = H;
last_W = W; last_W = W;
} else if (selected != last_selected) { } else if (selected != last_selected) {
// Otherwise, we can lazily just redraw 2 entries
draw_entry(selected, scrollx, A_REVERSE); draw_entry(selected, scrollx, A_REVERSE);
draw_entry(last_selected, scrollx, 0); draw_entry(last_selected, scrollx, 0);
} }
last_selected = selected; last_selected = selected;
} }
// Find the ascii character starting at `start`, going in `direction`, matching
// `searchbuff`, and return `fallback` if nothing matches.
static int find_ascii_match(int start, int fallback, int direction, char *searchbuf) static int find_ascii_match(int start, int fallback, int direction, char *searchbuf)
{ {
if (searchbuf[0] == '\0') return fallback; if (searchbuf[0] == '\0') return fallback;
@ -173,10 +177,10 @@ static int find_ascii_match(int start, int fallback, int direction, char *search
return fallback; return fallback;
} }
// To prevent wasted work, wait until 200ms has elapsed with no additional
// resizes before doing anything, then set the correct W/H values.
static void handle_resize() static void handle_resize()
{ {
// To prevent wasted work, wait until 200ms has elapsed
// with no additional resizes before doing anything
timeout(0); timeout(0);
do { do {
// Wait 200ms // Wait 200ms
@ -199,24 +203,30 @@ int main(int argc, char *argv[])
return 0; return 0;
} }
char* term_type = getenv("TERM"); // Instead of initscr(), set up the terminal this way to play nicely with
if (term_type == NULL || *term_type == '\0') { // the unix pipeline:
term_type = "unknown"; {
char* term_type = getenv("TERM");
if (term_type == NULL || *term_type == '\0') {
term_type = "unknown";
}
FILE* term_in = fopen("/dev/tty", "r");
if (term_in == NULL) {
perror("fopen(/dev/tty)");
exit(EXIT_FAILURE);
}
SCREEN *screen = newterm(term_type, stderr, term_in);
set_term(screen);
} }
FILE* term_in = fopen("/dev/tty", "r");
if (term_in == NULL) {
perror("fopen(/dev/tty)");
exit(EXIT_FAILURE);
}
SCREEN *screen = newterm(term_type, stderr, term_in);
set_term(screen);
set_escdelay(5);
W = getmaxx(stdscr); W = getmaxx(stdscr);
H = getmaxy(stdscr); H = getmaxy(stdscr);
noecho(); noecho();
set_escdelay(5);
keypad(stdscr, 1); keypad(stdscr, 1);
curs_set(2); curs_set(2);
start_color(); start_color();
DECIMAL_COLORS = new_colorpair(COLOR_YELLOW, COLOR_BLACK) | A_BOLD; DECIMAL_COLORS = new_colorpair(COLOR_YELLOW, COLOR_BLACK) | A_BOLD;
HEX_COLORS = new_colorpair(COLOR_GREEN, COLOR_BLACK) | A_BOLD; HEX_COLORS = new_colorpair(COLOR_GREEN, COLOR_BLACK) | A_BOLD;
CHAR_COLORS = new_colorpair(COLOR_MAGENTA, COLOR_BLACK) | A_BOLD; CHAR_COLORS = new_colorpair(COLOR_MAGENTA, COLOR_BLACK) | A_BOLD;
@ -231,8 +241,8 @@ int main(int argc, char *argv[])
INSERT_MODE_COLORS = new_colorpair(COLOR_WHITE, COLOR_RED) | A_BOLD; INSERT_MODE_COLORS = new_colorpair(COLOR_WHITE, COLOR_RED) | A_BOLD;
SEARCH_MODE_COLORS = new_colorpair(COLOR_BLACK, COLOR_BLUE); SEARCH_MODE_COLORS = new_colorpair(COLOR_BLACK, COLOR_BLUE);
size_t chunk = 256; size_t buf_chunk = 1024;
size_t buf_size = chunk, buf_i = 0; size_t buf_size = buf_chunk, buf_i = 0;
char *outbuf = calloc(buf_size, sizeof(char)); char *outbuf = calloc(buf_size, sizeof(char));
{ // Read stdin if anything was piped in { // Read stdin if anything was piped in
@ -241,11 +251,12 @@ int main(int argc, char *argv[])
desc.events = POLLIN; desc.events = POLLIN;
int ret = poll(&desc, 1, 50); int ret = poll(&desc, 1, 50);
if (ret > 0) { if (ret > 0) {
for (size_t consumed; (consumed = fread(&outbuf[buf_i], 1, chunk, stdin)); size_t consumed;
buf_i += consumed) { while ((consumed = fread(&outbuf[buf_i], 1, buf_chunk, stdin))) {
if (consumed == chunk) { buf_i += consumed;
chunk *= 2; if (consumed == buf_chunk) {
buf_size += chunk; buf_chunk *= 2;
buf_size += buf_chunk;
outbuf = realloc(outbuf, buf_size); outbuf = realloc(outbuf, buf_size);
} }
} }