/* See LICENSE file for copyright and license details. */ #include #include #include #include #include #include "drw.h" #include "util.h" #define UTF_INVALID 0xFFFD #define UTF_SIZ 4 static const unsigned char utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0}; static const unsigned char utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8}; static const long utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000}; static const long utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF}; static long utf8decodebyte(const char c, size_t *i) { for (*i = 0; *i < (UTF_SIZ + 1); ++(*i)) if (((unsigned char)c & utfmask[*i]) == utfbyte[*i]) return (unsigned char)c & ~utfmask[*i]; return 0; } static size_t utf8validate(long *u, size_t i) { if (!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF)) *u = UTF_INVALID; for (i = 1; *u > utfmax[i]; ++i) ; return i; } static size_t utf8decode(const char *c, long *u, size_t clen) { size_t i, j, len, type; long udecoded; *u = UTF_INVALID; if (!clen) return 0; udecoded = utf8decodebyte(c[0], &len); if (!BETWEEN(len, 1, UTF_SIZ)) return 1; for (i = 1, j = 1; i < clen && j < len; ++i, ++j) { udecoded = (udecoded << 6) | utf8decodebyte(c[i], &type); if (type) return j; } if (j < len) return 0; *u = udecoded; utf8validate(u, len); return len; } Drw * drw_create(Display *dpy, int screen, Window root, unsigned int w, unsigned int h) { Drw *drw = ecalloc(1, sizeof(Drw)); drw->dpy = dpy; drw->screen = screen; drw->root = root; drw->w = w; drw->h = h; drw->drawable = XCreatePixmap(dpy, root, w, h, DefaultDepth(dpy, screen)); drw->gc = XCreateGC(dpy, root, 0, NULL); XSetLineAttributes(dpy, drw->gc, 1, LineSolid, CapButt, JoinMiter); return drw; } void drw_resize(Drw *drw, unsigned int w, unsigned int h) { if (!drw) return; drw->w = w; drw->h = h; if (drw->drawable) XFreePixmap(drw->dpy, drw->drawable); drw->drawable = XCreatePixmap(drw->dpy, drw->root, w, h, DefaultDepth(drw->dpy, drw->screen)); } void drw_free(Drw *drw) { XFreePixmap(drw->dpy, drw->drawable); XFreeGC(drw->dpy, drw->gc); drw_fontset_free(drw->fonts); free(drw); } /* This function is an implementation detail. Library users should use * drw_fontset_create instead. */ static Fnt * xfont_create(Drw *drw, const char *fontname, FcPattern *fontpattern) { Fnt *font; XftFont *xfont = NULL; FcPattern *pattern = NULL; if (fontname) { /* Using the pattern found at font->xfont->pattern does not yield the * same substitution results as using the pattern returned by * FcNameParse; using the latter results in the desired fallback * behaviour whereas the former just results in missing-character * rectangles being drawn, at least with some fonts. */ if (!(xfont = XftFontOpenName(drw->dpy, drw->screen, fontname))) { fprintf(stderr, "error, cannot load font from name: '%s'\n", fontname); return NULL; } if (!(pattern = FcNameParse((FcChar8 *) fontname))) { fprintf(stderr, "error, cannot parse font name to pattern: '%s'\n", fontname); XftFontClose(drw->dpy, xfont); return NULL; } } else if (fontpattern) { if (!(xfont = XftFontOpenPattern(drw->dpy, fontpattern))) { fprintf(stderr, "error, cannot load font from pattern.\n"); return NULL; } } else { die("no font specified."); } font = ecalloc(1, sizeof(Fnt)); font->xfont = xfont; font->pattern = pattern; font->h = xfont->ascent + xfont->descent; font->dpy = drw->dpy; return font; } static void xfont_free(Fnt *font) { if (!font) return; if (font->pattern) FcPatternDestroy(font->pattern); XftFontClose(font->dpy, font->xfont); free(font); } Fnt* drw_fontset_create(Drw* drw, const char *fonts[], size_t fontcount) { Fnt *cur, *ret = NULL; size_t i; if (!drw || !fonts) return NULL; for (i = 1; i <= fontcount; i++) { if ((cur = xfont_create(drw, fonts[fontcount - i], NULL))) { cur->next = ret; ret = cur; } } return (drw->fonts = ret); } void drw_fontset_free(Fnt *font) { if (font) { drw_fontset_free(font->next); xfont_free(font); } } void drw_clr_create(Drw *drw, Clr *dest, const char *clrname) { if (!drw || !dest || !clrname) return; if (!XftColorAllocName(drw->dpy, DefaultVisual(drw->dpy, drw->screen), DefaultColormap(drw->d
// +build openbsd

package main

import (
	"os"

	"golang.org/x/sys/unix"
	"tildegit.org/andinus/lynx"
)

func main() {
	// We need less permissions on these conditions.
	if len(os.Args) == 1 ||
		os.Args[1]