135 lines
No EOL
2.9 KiB
C
135 lines
No EOL
2.9 KiB
C
#include <X11/Xlib.h>
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#include <X11/Xft/Xft.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <signal.h>
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#include <unistd.h>
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#include "config.h"
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Display *display;
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Window window;
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int get_eol(char *body, XftFont *font)
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{
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int body_len = strlen(body);
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XGlyphInfo info;
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XftTextExtentsUtf8(display, font, body, body_len, &info);
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int max_text_width = width - 2 * padding;
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if (info.width < max_text_width)
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return body_len;
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int eol = max_text_width / font->max_advance_width;
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info.width = 0;
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while (info.width < max_text_width)
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{
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eol++;
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XftTextExtentsUtf8(display, font, body, eol, &info);
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}
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return --eol;
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}
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void expire()
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{
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XEvent event;
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event.type = ButtonPress;
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XSendEvent(display, window, 0, 0, &event);
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XFlush(display);
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}
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int main(int argc, char *argv[])
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{
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if (argc != 2)
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{
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fprintf(stderr, "Usage: herbe message\n");
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exit(EXIT_FAILURE);
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}
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char *body = argv[1];
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signal(SIGALRM, expire);
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alarm(duration);
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display = XOpenDisplay(NULL);
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if (display == NULL)
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{
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fprintf(stderr, "Cannot open display\n");
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exit(EXIT_FAILURE);
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}
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int screen = DefaultScreen(display);
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Visual *visual = DefaultVisual(display, screen);
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Colormap colormap = DefaultColormap(display, screen);
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int window_width = DisplayWidth(display, screen);
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int window_height = DisplayHeight(display, screen);
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XftColor color;
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XSetWindowAttributes attributes;
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attributes.override_redirect = True;
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XftColorAllocName(display, visual, colormap, background_color, &color);
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attributes.background_pixel = color.pixel;
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XftColorAllocName(display, visual, colormap, border_color, &color);
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attributes.border_pixel = color.pixel;
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XftFont *font = XftFontOpenName(display, screen, font_pattern);
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unsigned int x = pos_x;
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unsigned int y = pos_y;
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unsigned int height = font->ascent - font->descent + padding * 2;
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switch (corner)
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{
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case BOTTOM_RIGHT:
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y = window_height - height - border_size * 2 - pos_y;
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case TOP_RIGHT:
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x = window_width - width - border_size * 2 - pos_x;
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break;
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case BOTTOM_LEFT:
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y = window_height - height - border_size * 2 - pos_y;
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}
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window = XCreateWindow(
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display, RootWindow(display, screen), x,
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y, width, height, border_size,
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DefaultDepth(display, screen), CopyFromParent,
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visual,
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CWOverrideRedirect | CWBackPixel | CWBorderPixel, &attributes);
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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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XSelectInput(display, window, ExposureMask | ButtonPress);
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XMapWindow(display, window);
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int eol = get_eol(body, font);
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XEvent event;
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while (1)
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{
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XNextEvent(display, &event);
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if (event.type == Expose)
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{
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XClearWindow(display, window);
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XftDrawStringUtf8(draw, &color, font, padding, height - padding, body, eol);
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}
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if (event.type == ButtonPress)
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break;
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}
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XftDrawDestroy(draw);
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XftColorFree(display, visual, colormap, &color);
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XftFontClose(display, font);
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XCloseDisplay(display);
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return EXIT_SUCCESS;
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} |