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https://github.com/Tha14/toxic.git
synced 2024-11-14 17:33:02 +01:00
Fix line wrapping/padding issues
It should now parse messages with newlines properly as well as messages that contain long sequences of characters with no spaces
This commit is contained in:
parent
f0c4906fdc
commit
d35a38735b
100
src/line_info.c
100
src/line_info.c
@ -71,7 +71,7 @@ void line_info_reset_start(ToxWindow *self, struct history *hst)
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do {
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curlines += line->format_lines;
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line = line->prev;
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} while (line->prev && curlines + line->format_lines < max_y);
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} while (line->prev && curlines + line->format_lines <= max_y);
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hst->line_start = line;
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}
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@ -165,6 +165,36 @@ static int rspace_index(const char *s, int limit)
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return -1;
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}
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/* Returns the first index in `s` containing a newline byte found before `limit`.
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* Returns -1 if no newline is found.
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*/
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static int newline_index(const char *s, int limit)
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{
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char ch;
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for (int i = 0; i < limit && (ch = s[i]); ++i) {
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if (ch == '\n') {
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return i;
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}
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}
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return -1;
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}
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/* Returns the number of newline bytes in `s` */
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static unsigned int newline_count(const char *s)
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{
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char ch;
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unsigned int count = 0;
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for (size_t i = 0; (ch = s[i]); ++i) {
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if (ch == '\n') {
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++count;
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}
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}
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return count;
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}
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/* Prints `line` message to window, wrapping at the last word that fits on the current line.
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* This function updates the `format_lines` field of `line` according to current window dimensions.
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@ -176,49 +206,61 @@ static void print_wrap(WINDOW *win, struct line_info *line, int max_x)
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{
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const char *msg = line->msg;
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uint16_t length = line->msg_len;
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uint16_t lines = line->newlines;
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uint16_t lines = 0;
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const int x_start = line->len - line->msg_len - 1; // manually keep track of x position because ncurses sucks
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while (msg) {
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++lines;
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int x_limit = max_x - x_start;
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if (length < x_limit || x_limit <= 0) {
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if (win) {
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wprintw(win, "%s", msg);
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if (x_limit <= 0) {
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fprintf(stderr, "Warning: x_limit <= 0 in print_wrap(): %d\n", x_limit);
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return;
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}
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while (msg) {
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if (length < x_limit) {
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if (print_n_chars(win, msg, length)) {
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lines += newline_count(msg);
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}
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++lines;
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break;
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}
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int newline_idx = newline_index(msg, x_limit - 1);
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if (newline_idx >= 0) {
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print_n_chars(win, msg, newline_idx + 1);
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msg += newline_idx + 1;
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length -= (newline_idx + 1);
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x_limit = max_x; // if we find a newline we stop adding column padding for rest of message
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++lines;
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continue;
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}
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int space_idx = rspace_index(msg, x_limit - 1);
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if (space_idx >= 1) {
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bool newline = print_n_chars(win, msg, space_idx);
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msg += space_idx;
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length -= space_idx;
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x_limit -= space_idx;
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print_n_chars(win, msg, space_idx);
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msg += space_idx + 1;
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length -= (space_idx + 1);
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// replace last space on current line with newline if we intend to split it
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if (length >= x_limit && !newline) {
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--length;
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++msg;
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if (win) {
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if (win && length >= x_limit - space_idx) {
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waddch(win, '\n');
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for (size_t i = 0; i < x_start; ++i) {
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waddch(win, ' '); // Add padding to the start of the next line
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}
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}
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}
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} else {
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print_n_chars(win, msg, x_limit);
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msg += x_limit;
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length -= x_limit;
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}
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// Add padding to the start of the next line
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if (win && x_limit < max_x) {
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for (size_t i = 0; i < x_start; ++i) {
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waddch(win, ' ');
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}
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}
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++lines;
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}
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line->format_lines = lines;
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@ -259,7 +301,8 @@ int line_info_add(ToxWindow *self, const char *timestr, const char *name1, const
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exit_toxic_err("failed in line_info_add", FATALERR_MEMORY);
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}
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char frmt_msg[MAX_LINE_INFO_MSG_SIZE] = {0};
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char frmt_msg[MAX_LINE_INFO_MSG_SIZE];
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frmt_msg[0] = 0;
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va_list args;
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va_start(args, msg);
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@ -314,12 +357,6 @@ int line_info_add(ToxWindow *self, const char *timestr, const char *name1, const
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snprintf(new_line->msg, sizeof(new_line->msg), "%s", frmt_msg);
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msg_len = strlen(new_line->msg);
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len += msg_len;
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for (size_t i = 0; frmt_msg[i]; ++i) {
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if (frmt_msg[i] == '\n') {
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++new_line->newlines;
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}
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}
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}
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if (timestr) {
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@ -523,6 +560,7 @@ void line_info_print(ToxWindow *self)
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if (line->noread_flag == false) {
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line->noread_flag = true;
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line->len += 2;
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line->msg_len += 2;
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}
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}
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@ -58,7 +58,6 @@ struct line_info {
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uint32_t id;
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uint16_t len; /* combined length of entire line */
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uint16_t msg_len; /* length of the message */
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uint8_t newlines;
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uint16_t format_lines; /* number of lines the combined string takes up (dynamically set) */
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struct line_info *prev;
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@ -88,6 +88,7 @@ static void cqueue_mark_read(ToxWindow *self, struct cqueue_msg *msg)
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if (line->noread_flag == true) {
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line->len -= 2;
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line->msg_len -= 2;
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line->noread_flag = false;
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}
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