#include <ncurses.h>
#include <stdlib.h>
+#include <unistd.h>
#include "include/parser.h"
#include "include/viewer.h"
+static short white_ramp[24] = { 16, 232, 233, 234, 235, 236,
+ 237, 238, 239, 240, 241, 242,
+ 244, 245, 246, 247, 248, 249,
+ 250, 251, 252, 253, 254, 255 };
+
+static short blue_ramp[24] = { 16, 17, 17, 18, 18, 19,
+ 19, 20, 20, 21, 27, 32,
+ 33, 38, 39, 44, 45, 45,
+ 81, 81, 51, 51, 123, 123 };
+
+static short red_ramp[24] = { 16, 52, 52, 53, 53, 89,
+ 89, 90, 90, 126, 127, 127,
+ 163, 163, 164, 164, 200, 200,
+ 201, 201, 207, 207, 213, 213 };
+
int ncurses_display(deck_t *deck, int notrans, int nofade) {
int c = 0; // char
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;
slide = slide->next;
}
+ // replace stdin with current tty if markdown input was piped
+ freopen("/dev/tty", "rw", stdin);
+
+ // init ncurses
+ initscr();
+
if((max_cols > COLS) ||
(max_lines + bar_top + bar_bottom + 2 > LINES)) {
fprintf(stderr, "Error: Terminal size %ix%i to small. Need at least %ix%i.\n",
COLS, LINES, max_cols, max_lines + bar_top + bar_bottom + 2);
+ endwin();
return(1);
}
// replace stdin with current tty if markdown input was piped
freopen("/dev/tty", "rw", stdin);
- // init ncurses
- initscr();
-
// disable cursor
curs_set(0);
start_color();
use_default_colors();
- if(!notrans) trans = 0; // 0 is black
+ if(notrans) trans = 0; // 0 is black
if(COLORS == 256) {
// 256 color mode
// 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, 0,
+ "%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,
+ "%s", &line->text->text[offset]);
+ }
}
+ // make header + fooder visible
+ wrefresh(stdscr);
+
// setup main window
- WINDOW *content = newwin(LINES - bar_top - bar_bottom, COLS, 0, 0 + bar_top);
+ WINDOW *content = newwin(LINES - bar_top - bar_bottom, COLS, 0 + bar_top, 0);
if(colors)
wbkgd(content, COLOR_PAIR(CP_WHITE));
slide = deck->slide;
while(slide) {
- // fade out
- // print header / footer
- // print lines
+ // clear main window
+ werase(content);
+
+ //TODO print lines
+ wprintw(content, "%s", "content");
+
+ // make content visible
+ wrefresh(content);
+
// fade in
+ if(fade)
+ fade_in(content, trans, colors);
// wait for user input
c = getch();
// quit
case 'q':
+ // do not fade out on exit
+ fade = 0;
slide = (void*)0;
break;
}
+
+ // fade out
+ if(fade)
+ fade_out(content, trans, colors);
}
endwin();
return(0);
}
+void fade_out(WINDOW *window, int trans, int colors) {
+ int i; // increment
+ if(colors) {
+ for(i = 22; i >= 0; i--) {
+ // darken color pairs
+ init_pair(CP_WHITE, white_ramp[i], trans);
+ init_pair(CP_BLUE, blue_ramp[i], trans);
+ init_pair(CP_RED, red_ramp[i], trans);
+ // refresh window with new color
+ wrefresh(window);
+ // delay for our eyes to recognize the change
+ usleep(FADE_DELAY);
+ }
+ }
+}
+
+void fade_in(WINDOW *window, int trans, int colors) {
+ int i; // increment
+ if(colors) {
+ for(i = 0; i <= 23; i++) {
+ // lighten color pairs
+ init_pair(CP_WHITE, white_ramp[i], trans);
+ init_pair(CP_BLUE, blue_ramp[i], trans);
+ init_pair(CP_RED, red_ramp[i], trans);
+ // refresh window with new color
+ wrefresh(window);
+ // delay for our eyes to recognize the change
+ usleep(FADE_DELAY);
+ }
+ }
+}
+
