#include <ncurses.h>
#include <stdlib.h>
+#include <string.h> // strchr
#include <unistd.h>
#include "include/parser.h"
int ncurses_display(deck_t *deck, int notrans, int nofade) {
int c = 0; // char
+ int l = 0; // line number
int colors = 0; // amount of colors supported
int fade = 0; // disable color fading by default
int trans = -1; // enable transparency if term supports it
int max_lines = 0; // max lines per slide
int max_cols = 0; // max columns per line
+ int offset; // text offset
// header line 1 is displayed at the top
int bar_top = (deck->headers > 0) ? 1 : 0;
// setup header
if(bar_top) {
- //TODO move cursor to calculated indentation
- wmove(stdscr, 0, 1);
- //TODO add text to header
- wprintw(stdscr, "header");
+ line = deck->header;
+ offset = next_blank(line->text, 0) + 1;
+ // add text to header
+ mvwprintw(stdscr,
+ 0, (COLS - line->length + offset) / 2,
+ "%s", &line->text->text[offset]);
}
// setup footer
if(bar_bottom) {
- //TODO move cursor to calculated indentation
- wmove(stdscr, LINES - 1, 1);
- //TODO add text to footer
- wprintw(stdscr, "footer");
+ line = deck->header->next;
+ offset = next_blank(line->text, 0) + 1;
+ // add text to left footer
+ mvwprintw(stdscr,
+ LINES - 1, 3,
+ "%s", &line->text->text[offset]);
+
+ if(deck->headers > 2) {
+ line = deck->header->next->next;
+ offset = next_blank(line->text, 0) + 1;
+ // add text to right footer
+ mvwprintw(stdscr,
+ LINES - 1, COLS - line->length + offset - 3,
+ "%s", &line->text->text[offset]);
+ }
}
// make header + fooder visible
// clear main window
werase(content);
- //TODO print lines
- wprintw(content, "content");
+ line = slide->line;
+ l = 0;
+
+ // print lines
+ while(line) {
+ add_line(content, l, (COLS - max_cols) / 2, line, max_cols);
+ line = line->next;
+ l++;
+ }
// make content visible
wrefresh(content);
if(fade)
fade_in(content, trans, colors);
+ // re-enable fading after any undefined key press
+ if(COLORS == 256 && !nofade) fade = 1;
+
// wait for user input
c = getch();
// show previous slide
case KEY_UP:
case KEY_LEFT:
- case KEY_BACKSPACE:
+ case 8: // BACKSPACE (ascii)
+ case 127: // BACKSPACE (xterm)
+ case 263: // BACKSPACE (getty)
case 'h':
case 'k':
if(slide->prev)
// show next slide
case KEY_DOWN:
case KEY_RIGHT:
- case KEY_ENTER:
+ case '\n': // ENTER
+ case ' ': // SPACE
case 'j':
case 'l':
if(slide->next)
fade = 0;
slide = (void*)0;
break;
+
+ default:
+ // disable fading on undefined key press
+ fade = 0;
+ break;
}
// fade out
return(0);
}
+void add_line(WINDOW *window, int y, int x, line_t *line, int max_cols) {
+ int i = 0; // increment
+ char *c; // char pointer for iteration
+ char *special = "\\*_"; // list of interpreted chars
+ cstack_t *stack = cstack_init();
+
+ if(line->text->text) {
+ int offset = 0; // text offset
+ offset = next_nonblank(line->text, 0);
+
+ // IS_CODE
+ if(CHECK_BIT(line->bits, IS_CODE)) {
+
+ // set static offset for code
+ offset = CODE_INDENT;
+
+ // reverse color for code blocks
+ wattron(window, A_REVERSE);
+
+ // print whole lines
+ mvwprintw(window,
+ y, x,
+ "%s", &line->text->text[offset]);
+
+ // IS_QUOTE
+ } else if(CHECK_BIT(line->bits, IS_QUOTE)) {
+ //TODO replace greater sign with color block
+
+ //FIXME remove dummy print code
+ mvwprintw(window,
+ y, x,
+ "%s", &line->text->text[offset]);
+
+ } else {
+
+ // IF_H1 || IF_H2
+ if(CHECK_BIT(line->bits, IS_H1) || CHECK_BIT(line->bits, IS_H2)) {
+
+ // set headline color
+ wattron(window, COLOR_PAIR(CP_BLUE));
+
+ // enable underline for H1
+ if(CHECK_BIT(line->bits, IS_H1))
+ wattron(window, A_UNDERLINE);
+
+ // skip hashes
+ while(line->text->text[offset] == '#')
+ offset = next_word(line->text, offset);
+
+ // print whole lines
+ mvwprintw(window,
+ y, x,
+ "%s", &line->text->text[offset]);
+
+ wattroff(window, A_UNDERLINE);
+
+ } else {
+ // move the cursor in position
+ wmove(window, y, x);
+
+ // for each char in line
+ c = line->text->text;
+ while(*c) {
+
+ // if char is in special char list
+ if(strchr(special, *c)) {
+
+ // closing special char (or second backslash)
+ if(is_attron(stack, *c)) {
+
+ switch(*c) {
+ // print escaped backslash
+ case '\\':
+ wprintw(window, "%c", *c);
+ break;
+ // disable highlight
+ case '*':
+ wattron(window, COLOR_PAIR(CP_WHITE));
+ break;
+ // disable underline
+ case '_':
+ wattroff(window, A_UNDERLINE);
+ break;
+ }
+
+ // remove top special char from stack
+ (stack->pop)(stack);
+
+ // treat special as regular char
+ } else if(is_attron(stack, '\\')) {
+ wprintw(window, "%c", *c);
+
+ // remove backslash from stack
+ (stack->pop)(stack);
+
+ // opening special char
+ } else {
+ switch(*c) {
+ // enable highlight
+ case '*':
+ wattron(window, COLOR_PAIR(CP_RED));
+ break;
+ // enable underline
+ case '_':
+ wattron(window, A_UNDERLINE);
+ break;
+ // do nothing for backslashes
+ }
+
+ // push special char to stack
+ (stack->push)(stack, *c);
+ }
+
+ } else {
+ // print regular char
+ wprintw(window, "%c", *c);
+ }
+
+ c++;
+ }
+
+ //TODO pop stack until empty
+ }
+ }
+
+ // fill rest off line with spaces
+ for(i = getcurx(window) - x; i < max_cols; i++)
+ wprintw(window, "%s", " ");
+
+ // reset to default color
+ wattron(window, COLOR_PAIR(CP_WHITE));
+ wattroff(window, A_UNDERLINE);
+ wattroff(window, A_REVERSE);
+ }
+
+ (stack->delete)(stack);
+}
+
+int is_attron(cstack_t *stack, char c) {
+ // test if char is on top of stack
+ if(stack->head >= 0) {
+ if((stack->top)(stack) == c) {
+ return 1;
+ }
+ }
+ return 0;
+}
+
void fade_out(WINDOW *window, int trans, int colors) {
int i; // increment
if(colors) {
