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1 changed files with 148 additions and 148 deletions
296
herbe.c
296
herbe.c
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@ -21,200 +21,200 @@ int exit_code = EXIT_DISMISS;
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static void die(const char *format, ...)
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static void die(const char *format, ...)
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{
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{
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va_list ap;
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va_list ap;
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va_start(ap, format);
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va_start(ap, format);
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vfprintf(stderr, format, ap);
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vfprintf(stderr, format, ap);
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fprintf(stderr, "\n");
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fprintf(stderr, "\n");
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va_end(ap);
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va_end(ap);
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exit(EXIT_FAIL);
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exit(EXIT_FAIL);
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}
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}
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int get_max_len(char *string, XftFont *font, int max_text_width)
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int get_max_len(char *string, XftFont *font, int max_text_width)
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{
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{
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int eol = strlen(string);
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int eol = strlen(string);
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XGlyphInfo info;
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XGlyphInfo info;
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XftTextExtentsUtf8(display, font, (FcChar8 *)string, eol, &info);
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XftTextExtentsUtf8(display, font, (FcChar8 *)string, eol, &info);
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if (info.width > max_text_width)
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if (info.width > max_text_width)
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{
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{
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eol = max_text_width / font->max_advance_width;
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eol = max_text_width / font->max_advance_width;
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info.width = 0;
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info.width = 0;
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while (info.width < max_text_width)
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while (info.width < max_text_width)
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{
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{
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eol++;
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eol++;
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XftTextExtentsUtf8(display, font, (FcChar8 *)string, eol, &info);
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XftTextExtentsUtf8(display, font, (FcChar8 *)string, eol, &info);
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}
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}
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eol--;
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eol--;
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}
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}
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for (int i = 0; i < eol; i++)
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for (int i = 0; i < eol; i++)
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if (string[i] == '\n')
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if (string[i] == '\n')
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{
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{
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string[i] = ' ';
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string[i] = ' ';
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return ++i;
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return ++i;
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}
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}
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if (info.width <= max_text_width)
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if (info.width <= max_text_width)
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return eol;
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return eol;
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int temp = eol;
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int temp = eol;
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while (string[eol] != ' ' && eol)
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while (string[eol] != ' ' && eol)
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--eol;
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--eol;
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if (eol == 0)
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if (eol == 0)
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return temp;
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return temp;
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else
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else
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return ++eol;
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return ++eol;
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}
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}
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void expire(int sig)
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void expire(int sig)
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{
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{
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XEvent event;
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XEvent event;
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event.type = ButtonPress;
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event.type = ButtonPress;
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event.xbutton.button = (sig == SIGUSR2) ? (ACTION_BUTTON) : (DISMISS_BUTTON);
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event.xbutton.button = (sig == SIGUSR2) ? (ACTION_BUTTON) : (DISMISS_BUTTON);
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XSendEvent(display, window, 0, 0, &event);
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XSendEvent(display, window, 0, 0, &event);
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XFlush(display);
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XFlush(display);
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}
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}
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int main(int argc, char *argv[])
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int main(int argc, char *argv[])
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{
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{
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if (argc == 1)
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if (argc == 1)
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{
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{
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sem_unlink("/herbe");
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sem_unlink("/herbe");
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die("Usage: %s body", argv[0]);
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die("Usage: %s body", argv[0]);
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}
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}
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struct sigaction act_expire, act_ignore;
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struct sigaction act_expire, act_ignore;
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act_expire.sa_handler = expire;
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act_expire.sa_handler = expire;
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act_expire.sa_flags = SA_RESTART;
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act_expire.sa_flags = SA_RESTART;
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sigemptyset(&act_expire.sa_mask);
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sigemptyset(&act_expire.sa_mask);
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act_ignore.sa_handler = SIG_IGN;
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act_ignore.sa_handler = SIG_IGN;
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act_ignore.sa_flags = 0;
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act_ignore.sa_flags = 0;
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sigemptyset(&act_ignore.sa_mask);
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sigemptyset(&act_ignore.sa_mask);
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sigaction(SIGALRM, &act_expire, 0);
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sigaction(SIGALRM, &act_expire, 0);
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sigaction(SIGTERM, &act_expire, 0);
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sigaction(SIGTERM, &act_expire, 0);
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sigaction(SIGINT, &act_expire, 0);
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sigaction(SIGINT, &act_expire, 0);
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sigaction(SIGUSR1, &act_ignore, 0);
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sigaction(SIGUSR1, &act_ignore, 0);
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sigaction(SIGUSR2, &act_ignore, 0);
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sigaction(SIGUSR2, &act_ignore, 0);
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if (!(display = XOpenDisplay(0)))
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if (!(display = XOpenDisplay(0)))
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die("Cannot open display");
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die("Cannot open display");
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int screen = DefaultScreen(display);
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int screen = DefaultScreen(display);
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Visual *visual = DefaultVisual(display, screen);
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Visual *visual = DefaultVisual(display, screen);
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Colormap colormap = DefaultColormap(display, screen);
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Colormap colormap = DefaultColormap(display, screen);
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int screen_width = DisplayWidth(display, screen);
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int screen_width = DisplayWidth(display, screen);
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int screen_height = DisplayHeight(display, screen);
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int screen_height = DisplayHeight(display, screen);
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XSetWindowAttributes attributes;
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XSetWindowAttributes attributes;
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attributes.override_redirect = True;
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attributes.override_redirect = True;
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XftColor color;
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XftColor color;
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XftColorAllocName(display, visual, colormap, background_color, &color);
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XftColorAllocName(display, visual, colormap, background_color, &color);
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attributes.background_pixel = color.pixel;
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attributes.background_pixel = color.pixel;
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XftColorAllocName(display, visual, colormap, border_color, &color);
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XftColorAllocName(display, visual, colormap, border_color, &color);
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attributes.border_pixel = color.pixel;
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attributes.border_pixel = color.pixel;
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int num_of_lines = 0;
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int num_of_lines = 0;
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int max_text_width = width - 2 * padding;
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int max_text_width = width - 2 * padding;
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int lines_size = 5;
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int lines_size = 5;
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char **lines = malloc(lines_size * sizeof(char *));
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char **lines = malloc(lines_size * sizeof(char *));
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if (!lines)
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if (!lines)
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die("malloc failed");
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die("malloc failed");
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XftFont *font = XftFontOpenName(display, screen, font_pattern);
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XftFont *font = XftFontOpenName(display, screen, font_pattern);
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for (int i = 1; i < argc; i++)
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for (int i = 1; i < argc; i++)
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{
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{
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for (unsigned int eol = get_max_len(argv[i], font, max_text_width); eol; argv[i] += eol, num_of_lines++, eol = get_max_len(argv[i], font, max_text_width))
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for (unsigned int eol = get_max_len(argv[i], font, max_text_width); eol; argv[i] += eol, num_of_lines++, eol = get_max_len(argv[i], font, max_text_width))
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{
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{
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if (lines_size <= num_of_lines)
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if (lines_size <= num_of_lines)
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{
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{
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lines = realloc(lines, (lines_size += 5) * sizeof(char *));
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lines = realloc(lines, (lines_size += 5) * sizeof(char *));
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if (!lines)
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if (!lines)
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die("realloc failed");
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die("realloc failed");
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}
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}
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lines[num_of_lines] = malloc((eol + 1) * sizeof(char));
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lines[num_of_lines] = malloc((eol + 1) * sizeof(char));
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if (!lines[num_of_lines])
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if (!lines[num_of_lines])
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die("malloc failed");
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die("malloc failed");
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strncpy(lines[num_of_lines], argv[i], eol);
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strncpy(lines[num_of_lines], argv[i], eol);
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lines[num_of_lines][eol] = '\0';
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lines[num_of_lines][eol] = '\0';
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}
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}
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}
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}
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unsigned int x = pos_x;
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unsigned int x = pos_x;
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unsigned int y = pos_y;
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unsigned int y = pos_y;
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unsigned int text_height = font->ascent - font->descent;
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unsigned int text_height = font->ascent - font->descent;
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unsigned int height = (num_of_lines - 1) * line_spacing + num_of_lines * text_height + 2 * padding;
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unsigned int height = (num_of_lines - 1) * line_spacing + num_of_lines * text_height + 2 * padding;
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if (corner == TOP_RIGHT || corner == BOTTOM_RIGHT)
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if (corner == TOP_RIGHT || corner == BOTTOM_RIGHT)
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x = screen_width - width - border_size * 2 - pos_x;
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x = screen_width - width - border_size * 2 - pos_x;
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if (corner == BOTTOM_LEFT || corner == BOTTOM_RIGHT)
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if (corner == BOTTOM_LEFT || corner == BOTTOM_RIGHT)
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y = screen_height - height - border_size * 2 - pos_y;
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y = screen_height - height - border_size * 2 - pos_y;
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window = XCreateWindow(display, RootWindow(display, screen), x, y, width, height, border_size, DefaultDepth(display, screen),
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window = XCreateWindow(display, RootWindow(display, screen), x, y, width, height, border_size, DefaultDepth(display, screen),
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CopyFromParent, visual, CWOverrideRedirect | CWBackPixel | CWBorderPixel, &attributes);
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CopyFromParent, visual, CWOverrideRedirect | CWBackPixel | CWBorderPixel, &attributes);
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XftDraw *draw = XftDrawCreate(display, window, visual, colormap);
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XftDraw *draw = XftDrawCreate(display, window, visual, colormap);
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XftColorAllocName(display, visual, colormap, font_color, &color);
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XftColorAllocName(display, visual, colormap, font_color, &color);
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XSelectInput(display, window, ExposureMask | ButtonPress);
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XSelectInput(display, window, ExposureMask | ButtonPress);
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XMapWindow(display, window);
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XMapWindow(display, window);
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sem_t *mutex = sem_open("/herbe", O_CREAT, 0644, 1);
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sem_t *mutex = sem_open("/herbe", O_CREAT, 0644, 1);
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sem_wait(mutex);
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sem_wait(mutex);
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sigaction(SIGUSR1, &act_expire, 0);
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sigaction(SIGUSR1, &act_expire, 0);
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sigaction(SIGUSR2, &act_expire, 0);
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sigaction(SIGUSR2, &act_expire, 0);
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if (duration != 0)
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if (duration != 0)
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alarm(duration);
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alarm(duration);
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for (;;)
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for (;;)
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{
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{
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XEvent event;
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XEvent event;
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XNextEvent(display, &event);
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XNextEvent(display, &event);
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if (event.type == Expose)
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if (event.type == Expose)
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{
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{
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XClearWindow(display, window);
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XClearWindow(display, window);
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for (int i = 0; i < num_of_lines; i++)
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for (int i = 0; i < num_of_lines; i++)
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XftDrawStringUtf8(draw, &color, font, padding, line_spacing * i + text_height * (i + 1) + padding,
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XftDrawStringUtf8(draw, &color, font, padding, line_spacing * i + text_height * (i + 1) + padding,
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(FcChar8 *)lines[i], strlen(lines[i]));
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(FcChar8 *)lines[i], strlen(lines[i]));
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}
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}
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else if (event.type == ButtonPress)
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else if (event.type == ButtonPress)
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{
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{
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if (event.xbutton.button == DISMISS_BUTTON)
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if (event.xbutton.button == DISMISS_BUTTON)
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break;
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break;
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else if (event.xbutton.button == ACTION_BUTTON)
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else if (event.xbutton.button == ACTION_BUTTON)
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{
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{
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exit_code = EXIT_ACTION;
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exit_code = EXIT_ACTION;
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break;
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break;
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}
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}
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}
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}
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}
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}
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sem_post(mutex);
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sem_post(mutex);
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sem_close(mutex);
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sem_close(mutex);
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for (int i = 0; i < num_of_lines; i++)
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for (int i = 0; i < num_of_lines; i++)
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free(lines[i]);
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free(lines[i]);
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free(lines);
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free(lines);
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XftDrawDestroy(draw);
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XftDrawDestroy(draw);
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XftColorFree(display, visual, colormap, &color);
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XftColorFree(display, visual, colormap, &color);
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XftFontClose(display, font);
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XftFontClose(display, font);
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XCloseDisplay(display);
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XCloseDisplay(display);
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return exit_code;
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return exit_code;
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}
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}
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