X-Git-Url: https://git.danieliu.xyz/?a=blobdiff_plain;f=src%2Fviewer.c;h=56291dbc8adb7581bff953f128bd6d7240076c43;hb=94a28d11cee6db33d9c456b395ed59f2631b08e5;hp=43a0733df2a360f7cacd2902acf53be1662bc038;hpb=b17ed569c4a9c22ef75bd6ffaf4a50a9bb8ec379;p=smdp.git diff --git a/src/viewer.c b/src/viewer.c index 43a0733..56291db 100644 --- a/src/viewer.c +++ b/src/viewer.c @@ -2,7 +2,7 @@ * Functions necessary to display a deck of slides in different color modes * using ncurses. Only white, red, and blue are supported, as they can be * faded in 256 color mode. - * Copyright (C) 2015 Michael Goehler + * Copyright (C) 2016 Michael Goehler * * This file is part of mdp. * @@ -26,6 +26,7 @@ #include // iswalnum #include // strcpy #include // usleep +#include // getenv #include "viewer.h" // color ramp for fading from black to color @@ -229,12 +230,14 @@ int ncurses_display(deck_t *deck, int notrans, int nofade, int invert, int reloa colors = 1; } - // set background color of main window + // set background color for main window if(colors) - wbkgd(stdscr, COLOR_PAIR(CP_YELLOW)); + wbkgd(stdscr, COLOR_PAIR(CP_WHITE)); - // setup main window + // setup content window WINDOW *content = newwin(LINES - bar_top - bar_bottom, COLS, 0 + bar_top, 0); + + // set background color of content window if(colors) wbkgd(content, COLOR_PAIR(CP_WHITE)); @@ -261,6 +264,10 @@ int ncurses_display(deck_t *deck, int notrans, int nofade, int invert, int reloa // always resize window in case terminal geometry has changed wresize(content, LINES - bar_top - bar_bottom, COLS); + // set main window text color + if(colors) + wattron(stdscr, COLOR_PAIR(CP_YELLOW)); + // setup header if(bar_top) { line = deck->header; @@ -304,9 +311,8 @@ int ncurses_display(deck_t *deck, int notrans, int nofade, int invert, int reloa break; } - // make header + fooder visible - wrefresh(content); - wrefresh(stdscr); + // copy changed lines in main window to virtual screen + wnoutrefresh(stdscr); line = slide->line; l = stop = 0; @@ -339,8 +345,11 @@ int ncurses_display(deck_t *deck, int notrans, int nofade, int invert, int reloa } } - // make content visible - wrefresh(content); + // copy changed lines in content window to virtual screen + wnoutrefresh(content); + + // compare virtual screen to physical screen and does the actual updates + doupdate(); // fade in if(fade) @@ -508,6 +517,55 @@ int ncurses_display(deck_t *deck, int notrans, int nofade, int invert, int reloa return reload; } +static const char *list_open1 = " | "; +static const char *list_open2 = " | "; +static const char *list_open3 = " | "; +static const char *list_head1 = " +- "; +static const char *list_head2 = " +- "; +static const char *list_head3 = " +- "; +/* + +export MDP_LIST_OPEN3=" " +export MDP_LIST_OPEN2=" " +export MDP_LIST_OPEN3=" " +export MDP_LIST_HEAD1=" ■ " +export MDP_LIST_HEAD2=" ▫ " +export MDP_LIST_HEAD3=" ● " + +export MDP_LIST_OPEN2=" │ " +export MDP_LIST_OPEN2=" │ " +export MDP_LIST_OPEN3=" │ " +export MDP_LIST_HEAD1=" ▇─ " +export MDP_LIST_HEAD2=" ▓─ " +export MDP_LIST_HEAD3=" ▒─ " +* +*/ +void setup_list_strings(void) +{ + const char *str; + + if ((str = getenv("MDP_LIST_OPEN")) != NULL) { + list_open1 = list_open2 = list_open3 = str; + } else { + if ((str = getenv("MDP_LIST_OPEN1")) != NULL) + list_open1 = str; + if ((str = getenv("MDP_LIST_OPEN2")) != NULL) + list_open2 = str; + if ((str = getenv("MDP_LIST_OPEN3")) != NULL) + list_open3 = str; + } + if ((str = getenv("MDP_LIST_HEAD")) != NULL) { + list_head1 = list_head2 = list_head3 = str; + } else { + if ((str = getenv("MDP_LIST_HEAD1")) != NULL) + list_head1 = str; + if ((str = getenv("MDP_LIST_HEAD2")) != NULL) + list_head2 = str; + if ((str = getenv("MDP_LIST_HEAD3")) != NULL) + list_head3 = str; + } +} + void add_line(WINDOW *window, int y, int x, line_t *line, int max_cols, int colors) { int i; // increment @@ -520,7 +578,8 @@ void add_line(WINDOW *window, int y, int x, line_t *line, int max_cols, int colo // fill rest off line with spaces if we are in a code block if(CHECK_BIT(line->bits, IS_CODE) && colors) { - wattron(window, COLOR_PAIR(CP_BLACK)); + if(colors) + wattron(window, COLOR_PAIR(CP_BLACK)); for(i = getcurx(window) - x; i < max_cols; i++) wprintw(window, "%s", " "); } @@ -532,14 +591,20 @@ void add_line(WINDOW *window, int y, int x, line_t *line, int max_cols, int colo // IS_UNORDERED_LIST_3 if(CHECK_BIT(line->bits, IS_UNORDERED_LIST_3)) { offset = next_nonblank(line->text, 0); - char prompt[13]; - strcpy(&prompt[0], CHECK_BIT(line->bits, IS_UNORDERED_LIST_1)? " | " : " "); - strcpy(&prompt[4], CHECK_BIT(line->bits, IS_UNORDERED_LIST_2)? " | " : " "); + char prompt[13 * 6]; + int pos = 0, len, cnt; + len = sizeof(prompt) - pos; + cnt = snprintf(&prompt[pos], len, "%s", CHECK_BIT(line->bits, IS_UNORDERED_LIST_1)? list_open1 : " "); + pos += (cnt > len - 1 ? len - 1 : cnt); + len = sizeof(prompt) - pos; + cnt = snprintf(&prompt[pos], len, "%s", CHECK_BIT(line->bits, IS_UNORDERED_LIST_2)? list_open2 : " "); + pos += (cnt > len - 1 ? len - 1 : cnt); + len = sizeof(prompt) - pos; if(CHECK_BIT(line->bits, IS_UNORDERED_LIST_EXT)) { - strcpy(&prompt[8], line->next && CHECK_BIT(line->next->bits, IS_UNORDERED_LIST_3)? " | " : " "); + snprintf(&prompt[pos], len, "%s", line->next && CHECK_BIT(line->next->bits, IS_UNORDERED_LIST_3)? list_open3 : " "); } else { - strcpy(&prompt[8], " +- "); + snprintf(&prompt[pos], len, "%s", list_head3); offset += 2; } @@ -552,13 +617,17 @@ void add_line(WINDOW *window, int y, int x, line_t *line, int max_cols, int colo // IS_UNORDERED_LIST_2 } else if(CHECK_BIT(line->bits, IS_UNORDERED_LIST_2)) { offset = next_nonblank(line->text, 0); - char prompt[9]; - strcpy(&prompt[0], CHECK_BIT(line->bits, IS_UNORDERED_LIST_1)? " | " : " "); + char prompt[9 * 6]; + int pos = 0, len, cnt; + len = sizeof(prompt) - pos; + cnt = snprintf(&prompt[pos], len, "%s", CHECK_BIT(line->bits, IS_UNORDERED_LIST_1)? list_open1 : " "); + pos += (cnt > len - 1 ? len - 1 : cnt); + len = sizeof(prompt) - pos; if(CHECK_BIT(line->bits, IS_UNORDERED_LIST_EXT)) { - strcpy(&prompt[4], line->next && CHECK_BIT(line->next->bits, IS_UNORDERED_LIST_2)? " | " : " "); + snprintf(&prompt[pos], len, "%s", line->next && CHECK_BIT(line->next->bits, IS_UNORDERED_LIST_2)? list_open2 : " "); } else { - strcpy(&prompt[4], " +- "); + snprintf(&prompt[pos], len, "%s", list_head2); offset += 2; } @@ -571,12 +640,12 @@ void add_line(WINDOW *window, int y, int x, line_t *line, int max_cols, int colo // IS_UNORDERED_LIST_1 } else if(CHECK_BIT(line->bits, IS_UNORDERED_LIST_1)) { offset = next_nonblank(line->text, 0); - char prompt[5]; + char prompt[5 * 6]; if(CHECK_BIT(line->bits, IS_UNORDERED_LIST_EXT)) { - strcpy(&prompt[0], line->next && CHECK_BIT(line->next->bits, IS_UNORDERED_LIST_1)? " | " : " "); + strcpy(&prompt[0], line->next && CHECK_BIT(line->next->bits, IS_UNORDERED_LIST_1)? list_open1 : " "); } else { - strcpy(&prompt[0], " +- "); + strcpy(&prompt[0], list_head1); offset += 2; } @@ -862,8 +931,11 @@ void fade_out(WINDOW *window, int trans, int colors, int invert) { init_pair(CP_BLACK, 16, white_ramp[i]); } - // refresh window with new color - wrefresh(window); + // refresh virtual screen with new color + wnoutrefresh(window); + + // compare virtual screen to physical screen and does the actual updates + doupdate(); // delay for our eyes to recognize the change usleep(FADE_DELAY); @@ -889,8 +961,11 @@ void fade_in(WINDOW *window, int trans, int colors, int invert) { init_pair(CP_BLACK, 16, white_ramp[i]); } - // refresh window with new color - wrefresh(window); + // refresh virtual screen with new color + wnoutrefresh(window); + + // compare virtual screen to physical screen and does the actual updates + doupdate(); // delay for our eyes to recognize the change usleep(FADE_DELAY);