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https://github.com/Tha14/toxic.git
synced 2025-07-17 15:06:42 +02:00
refactor chat history to allow scrolling
This commit is contained in:
Jfreegman
321
src/line_info.c
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321
src/line_info.c
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/* line_info.c
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*
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*
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* Copyright (C) 2014 Toxic All Rights Reserved.
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*
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* This file is part of Toxic.
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*
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* Toxic is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Toxic is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Toxic. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdlib.h>
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#include <string.h>
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#include <stdbool.h>
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#include "toxic_windows.h"
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#include "line_info.h"
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void line_info_init(struct history *hst)
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{
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hst->line_root = malloc(sizeof(struct line_info));
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memset(hst->line_root, 0, sizeof(struct line_info));
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if (hst->line_root == NULL) {
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endwin();
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fprintf(stderr, "malloc() failed. Aborting...\n");
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exit(EXIT_FAILURE);
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}
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hst->line_start = hst->line_root;
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hst->line_end = hst->line_start;
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}
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/* resets line_start when scroll mode is disabled */
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static void line_info_reset_start(struct history *hst)
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{
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struct line_info *line = hst->line_end;
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uint32_t start_id = hst->start_id;
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while (line) {
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if (line->id == start_id) {
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hst->line_start = line;
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break;
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}
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line = line->prev;
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}
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}
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void line_info_toggle_scroll(ToxWindow *self, bool scroll)
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{
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ChatContext *ctx = self->chatwin;
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struct history *hst = self->chatwin->hst;
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if (scroll) {
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hst->scroll_mode = true;
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scrollok(ctx->history, 0);
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curs_set(0);
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} else {
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hst->scroll_mode = false;
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scrollok(ctx->history, 1);
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line_info_reset_start(hst);
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curs_set(1);
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}
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}
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void line_info_cleanup(struct history *hst)
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{
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struct line_info *tmp1 = hst->line_root;
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while (tmp1) {
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struct line_info *tmp2 = tmp1->next;
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free(tmp1);
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tmp1 = tmp2;
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}
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}
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void line_info_add(ToxWindow *self, uint8_t *tmstmp, uint8_t *name1, uint8_t *name2, uint8_t *msg,
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uint8_t msgtype, uint8_t bold, uint8_t colour)
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{
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ChatContext *ctx = self->chatwin;
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struct history *hst = self->chatwin->hst;
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struct line_info *new_line = malloc(sizeof(struct line_info));
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memset(new_line, 0, sizeof(struct line_info));
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if (new_line == NULL) {
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endwin();
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fprintf(stderr, "malloc() failed. Aborting...\n");
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exit(EXIT_FAILURE);
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}
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int len = 1; /* there will always be a newline */
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/* for type-specific formatting in print function */
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switch (msgtype) {
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case OUT_MSG:
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case IN_MSG:
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len += 2;
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break;
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case ACTION:
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len += 3;
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break;
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}
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if (msg) {
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memcpy(new_line->msg, msg, MAX_STR_SIZE);
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len += strlen(msg);
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} if (tmstmp) {
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memcpy(new_line->timestamp, tmstmp, TIME_STR_SIZE);
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len += strlen(tmstmp);
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} if (name1) {
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memcpy(new_line->name1, name1, TOXIC_MAX_NAME_LENGTH);
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len += strlen(name1);
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} if (name2) {
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memcpy(new_line->name2, name2, TOXIC_MAX_NAME_LENGTH);
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len += strlen(name2);
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}
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new_line->len = len;
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new_line->msgtype = msgtype;
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new_line->bold = bold;
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new_line->colour = colour;
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new_line->id = hst->line_end->id + 1;
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new_line->prev = hst->line_end;
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hst->line_end->next = new_line;
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hst->line_end = new_line;
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/* If chat history exceeds limit move root forward and free old root */
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if (++(hst->line_items) >= MAX_HISTORY) {
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--hst->line_items;
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struct line_info *tmp = hst->line_root->next;
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tmp->prev = NULL;
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if (hst->line_start->prev == NULL) { /* if line_start is root move it forward as well */
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hst->line_start = hst->line_start->next;
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hst->line_start->prev = NULL;
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}
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free(hst->line_root);
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hst->line_root = tmp;
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}
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int y, y2, x, x2;
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getmaxyx(self->window, y2, x2);
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getyx(ctx->history, y, x);
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/* move line_start forward proportionate to the number of new rows */
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if (y >= y2 - CHATBOX_HEIGHT) {
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int i;
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int lines = 1 + (len / x2);
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while (lines > 0 && hst->line_start->next) {
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lines -= (1 + hst->line_start->len / x2);
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hst->line_start = hst->line_start->next;
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++hst->start_id;
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}
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}
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}
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void line_info_print(ToxWindow *self)
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{
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ChatContext *ctx = self->chatwin;
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wclear(ctx->history);
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wmove(ctx->history, 1, 0);
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int y2, x2;
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getmaxyx(self->window, y2, x2);
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struct line_info *line = ctx->hst->line_start;
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int numlines = 0;
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while(line && numlines <= x2) {
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uint8_t type = line->msgtype;
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numlines += line->len / x2;
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switch (type) {
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case OUT_MSG:
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case IN_MSG:
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wattron(ctx->history, COLOR_PAIR(BLUE));
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wprintw(ctx->history, "%s", line->timestamp);
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wattroff(ctx->history, COLOR_PAIR(BLUE));
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int nameclr = GREEN;
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if (type == IN_MSG)
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nameclr = CYAN;
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if (line->colour)
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nameclr = line->colour;
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wattron(ctx->history, COLOR_PAIR(nameclr));
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wprintw(ctx->history, "%s: ", line->name1);
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wattroff(ctx->history, COLOR_PAIR(nameclr));
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if (line->msg[0] == '>')
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wattron(ctx->history, COLOR_PAIR(GREEN));
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wprintw(ctx->history, "%s\n", line->msg);
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if (line->msg[0] == '>')
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wattroff(ctx->history, COLOR_PAIR(GREEN));
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break;
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case ACTION:
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wattron(ctx->history, COLOR_PAIR(BLUE));
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wprintw(ctx->history, "%s", line->timestamp);
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wattroff(ctx->history, COLOR_PAIR(BLUE));
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wattron(ctx->history, COLOR_PAIR(YELLOW));
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wprintw(ctx->history, "* %s %s\n", line->name1, line->msg);
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wattroff(ctx->history, COLOR_PAIR(YELLOW));
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break;
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case SYS_MSG:
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if (line->timestamp[0]) {
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wattron(ctx->history, COLOR_PAIR(BLUE));
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wprintw(ctx->history, "%s", line->timestamp);
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wattroff(ctx->history, COLOR_PAIR(BLUE));
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}
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if (line->bold)
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wattron(ctx->history, A_BOLD);
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if (line->colour)
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wattron(ctx->history, COLOR_PAIR(line->colour));
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wprintw(ctx->history, "%s\n", line->msg);
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if (line->bold)
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wattroff(ctx->history, A_BOLD);
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if (line->colour)
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wattroff(ctx->history, COLOR_PAIR(line->colour));
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break;
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}
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line = line->next;
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}
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}
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static void line_info_goto_root(struct history *hst)
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{
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hst->line_start = hst->line_root;
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}
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static void line_info_scroll_up(struct history *hst)
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{
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if (hst->line_start->prev)
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hst->line_start = hst->line_start->prev;
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else beep();
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}
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static void line_info_scroll_down(struct history *hst)
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{
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if (hst->line_start->next)
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hst->line_start = hst->line_start->next;
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else beep();
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}
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static void line_info_page_up(ToxWindow *self, struct history *hst)
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{
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int x2, y2;
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getmaxyx(self->window, y2, x2);
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int jump_dist = y2 / 2;
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int i;
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for (i = 0; i < jump_dist && hst->line_start->prev; ++i)
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hst->line_start = hst->line_start->prev;
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}
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static void line_info_page_down(ToxWindow *self, struct history *hst)
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{
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int x2, y2;
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getmaxyx(self->window, y2, x2);
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int jump_dist = y2 / 2;
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int i;
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for (i = 0; i < jump_dist && hst->line_start->next; ++i)
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hst->line_start = hst->line_start->next;
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}
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void line_info_onKey(ToxWindow *self, wint_t key)
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{
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struct history *hst = self->chatwin->hst;
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switch (key) {
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case KEY_PPAGE:
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line_info_page_up(self, hst);
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break;
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case KEY_NPAGE:
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line_info_page_down(self, hst);
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break;
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case KEY_UP:
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line_info_scroll_up(hst);
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break;
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case KEY_DOWN:
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line_info_scroll_down(hst);
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break;
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case KEY_HOME:
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line_info_goto_root(hst);
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break;
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case KEY_END:
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line_info_reset_start(hst);
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break;
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}
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}
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