#include <stdlib.h>
#include <signal.h>
#include <unistd.h>
+#include <string.h>
+#include <stdarg.h>
+#include <fcntl.h>
+#include <semaphore.h>
#include "config.h"
+#define EXIT_ACTION 3
+
Display *display;
Window window;
+int exit_code = EXIT_SUCCESS;
+
+static void die(const char *format, ...)
+{
+ va_list ap;
+ va_start(ap, format);
+ vfprintf(stderr, format, ap);
+ fprintf(stderr, "\n");
+ va_end(ap);
+ exit(EXIT_FAILURE);
+}
+
+int get_max_len(char *body, XftFont *font, int max_text_width)
+{
+ int eol = strlen(body);
+ XGlyphInfo info;
+ XftTextExtentsUtf8(display, font, (FcChar8 *)body, eol, &info);
+
+ if (info.width > max_text_width)
+ {
+ eol = max_text_width / font->max_advance_width;
+ info.width = 0;
+
+ while (info.width < max_text_width)
+ {
+ eol++;
+ XftTextExtentsUtf8(display, font, (FcChar8 *)body, eol, &info);
+ }
+
+ eol--;
+ }
+
+ for (int i = 0; i < eol; i++)
+ if (body[i] == '\n')
+ {
+ body[i] = ' ';
+ return ++i;
+ }
+
+ if (info.width < max_text_width)
+ return eol;
+
+ int temp = eol;
+
+ while (body[eol] != ' ' && eol)
+ --eol;
+
+ if (eol == 0)
+ return temp;
+ else
+ return ++eol;
+}
void expire()
{
XEvent event;
event.type = ButtonPress;
+ event.xbutton.button = DISMISS_BUTTON;
XSendEvent(display, window, 0, 0, &event);
XFlush(display);
}
-int main(int argc, char *argv[])
+void action()
{
- if (argc != 2)
- {
- fprintf(stderr, "Usage: herbe message\n");
- exit(EXIT_FAILURE);
- }
+ exit_code = EXIT_ACTION;
+ expire();
+}
- char *body = argv[1];
+int main(int argc, char *argv[])
+{
+ if (argc == 1)
+ die("Usage: %s body", argv[0]);
signal(SIGALRM, expire);
- alarm(duration);
+ signal(SIGTERM, expire);
+ signal(SIGINT, expire);
+ signal(SIGUSR1, SIG_IGN);
+ signal(SIGUSR2, SIG_IGN);
- display = XOpenDisplay(NULL);
+ display = XOpenDisplay(0);
- if (display == NULL)
- {
- fprintf(stderr, "Cannot open display\n");
- exit(EXIT_FAILURE);
- }
+ if (display == 0)
+ die("Cannot open display");
int screen = DefaultScreen(display);
Visual *visual = DefaultVisual(display, screen);
XftFont *font = XftFontOpenName(display, screen, font_pattern);
+ int num_of_lines = 0;
int max_text_width = width - 2 * padding;
- int eols_size = 5;
- int *eols = malloc(eols_size * sizeof(int));
- eols[0] = 0;
- int remainder = strlen(body);
- int num_of_lines = 1;
+ int words_size = 5;
+ char **words = malloc(words_size * sizeof(char *));
+ if (!words)
+ die("malloc failed");
- while (1)
+ for (int i = 1; i < argc; i++)
{
- XGlyphInfo info;
- info.width = 0;
- int eol = max_text_width / font->max_advance_width;
- while (info.width < max_text_width)
- {
- eol++;
- XftTextExtentsUtf8(display, font, body + eols[num_of_lines - 1], eol, &info);
- }
+ char *body = argv[i];
- --eol;
-
- if (eol >= remainder)
+ for (unsigned int eol = get_max_len(body, font, max_text_width); eol <= strlen(body) && eol; body += eol, num_of_lines++, eol = get_max_len(body, font, max_text_width))
{
- if (eols_size < num_of_lines + 1)
+ if (words_size <= num_of_lines)
{
- eols_size += 5;
- eols = realloc(eols, eols_size * sizeof(int));
+ words = realloc(words, (words_size += 5) * sizeof(char *));
+ if (!words)
+ die("malloc failed");
}
- eols[num_of_lines] = eols[num_of_lines - 1] + remainder;
- num_of_lines++;
- break;
- }
-
- while (body[eols[num_of_lines - 1] + eol] != ' ')
- --eol;
-
- eol++;
-
- remainder -= eol;
- if (eols_size < num_of_lines + 1)
- {
- eols_size += 5;
- eols = realloc(eols, eols_size * sizeof(int));
+ words[num_of_lines] = malloc((eol + 1) * sizeof(char));
+ if (!words[num_of_lines])
+ die("malloc failed");
+ strncpy(words[num_of_lines], body, eol);
+ words[num_of_lines][eol] = '\0';
}
- eols[num_of_lines] = eols[num_of_lines - 1] + eol;
- num_of_lines++;
}
unsigned int x = pos_x;
unsigned int y = pos_y;
unsigned int text_height = font->ascent - font->descent;
- unsigned int height = (num_of_lines - 2) * line_spacing + (num_of_lines - 1) * text_height + 2 * padding;
+ unsigned int height = (num_of_lines - 1) * line_spacing + num_of_lines * text_height + 2 * padding;
- switch (corner)
- {
- case BOTTOM_RIGHT:
- y = screen_height - height - border_size * 2 - pos_y;
- case TOP_RIGHT:
+ if (corner == TOP_RIGHT || corner == BOTTOM_RIGHT)
x = screen_width - width - border_size * 2 - pos_x;
- break;
- case BOTTOM_LEFT:
+
+ if (corner == BOTTOM_LEFT || corner == BOTTOM_RIGHT)
y = screen_height - height - border_size * 2 - pos_y;
- }
window = XCreateWindow(display, RootWindow(display, screen), x, y, width, height, border_size, DefaultDepth(display, screen), CopyFromParent, visual,
CWOverrideRedirect | CWBackPixel | CWBorderPixel, &attributes);
XMapWindow(display, window);
- XEvent event;
+ sem_t *mutex = sem_open("/herbe", O_CREAT, 0644, 1);
+ sem_wait(mutex);
+
+ signal(SIGUSR1, expire);
+ signal(SIGUSR2, action);
+
+ if (duration != 0)
+ alarm(duration);
while (1)
{
+ XEvent event;
XNextEvent(display, &event);
if (event.type == Expose)
{
XClearWindow(display, window);
- for (int i = 1; i < num_of_lines; i++)
- XftDrawStringUtf8(draw, &color, font, padding, line_spacing * (i - 1) + text_height * i + padding, body + eols[i - 1], eols[i] - eols[i - 1]);
+ for (int i = 0; i < num_of_lines; i++)
+ XftDrawStringUtf8(draw, &color, font, padding, line_spacing * i + text_height * (i + 1) + padding, (FcChar8 *)words[i], strlen(words[i]));
}
if (event.type == ButtonPress)
- break;
+ {
+ if (event.xbutton.button == DISMISS_BUTTON)
+ break;
+ else if (event.xbutton.button == ACTION_BUTTON)
+ {
+ exit_code = EXIT_ACTION;
+ break;
+ }
+ }
}
- free(eols);
+ sem_post(mutex);
+ sem_close(mutex);
+
+ for (int i = 0; i < num_of_lines; i++)
+ free(words[i]);
+
+ free(words);
XftDrawDestroy(draw);
XftColorFree(display, visual, colormap, &color);
XftFontClose(display, font);
-
XCloseDisplay(display);
- return EXIT_SUCCESS;
-}
\ No newline at end of file
+
+ exit(exit_code);
+}
/ index / herbe.git / blobdiff