Remove DRW (src/drw.h) code
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582e97a759
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553C0EBBEB5D5F08
2 changed files with 2 additions and 270 deletions
256
src/drw.c
256
src/drw.c
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@ -10,57 +10,8 @@
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// TODO: Include necessary headers in this header.
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#include "drw.h"
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#define UTF_INVALID 0xFFFD
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#define UTF_SIZ 4
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static const unsigned char utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0};
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static const unsigned char utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
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static const long utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000};
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static const long utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
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static long
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utf8decodebyte(const char c, size_t *i)
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{
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for (*i = 0; *i < (UTF_SIZ + 1); ++(*i))
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if (((unsigned char)c & utfmask[*i]) == utfbyte[*i])
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return (unsigned char)c & ~utfmask[*i];
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return 0;
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}
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static size_t
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utf8validate(long *u, size_t i)
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{
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if (!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF))
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*u = UTF_INVALID;
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for (i = 1; *u > utfmax[i]; ++i)
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;
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return i;
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}
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static size_t
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utf8decode(const char *c, long *u, size_t clen)
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{
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size_t i, j, len, type;
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long udecoded;
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*u = UTF_INVALID;
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if (!clen)
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return 0;
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udecoded = utf8decodebyte(c[0], &len);
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if (!BETWEEN(len, 1, UTF_SIZ))
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return 1;
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for (i = 1, j = 1; i < clen && j < len; ++i, ++j) {
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udecoded = (udecoded << 6) | utf8decodebyte(c[i], &type);
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if (type)
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return j;
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}
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if (j < len)
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return 0;
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*u = udecoded;
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utf8validate(u, len);
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return len;
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}
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static void drw_fontset_free(Fnt* set);
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static void drw_clr_create(Drw *drw, Clr *dest, const char *clrname);
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Drw *
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drw_create(Display *dpy, int screen, Window root, unsigned int w, unsigned int h)
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@ -79,19 +30,6 @@ drw_create(Display *dpy, int screen, Window root, unsigned int w, unsigned int h
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return drw;
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}
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void
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drw_resize(Drw *drw, unsigned int w, unsigned int h)
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{
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if (!drw)
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return;
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drw->w = w;
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drw->h = h;
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if (drw->drawable)
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XFreePixmap(drw->dpy, drw->drawable);
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drw->drawable = XCreatePixmap(drw->dpy, drw->root, w, h, DefaultDepth(drw->dpy, drw->screen));
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}
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void
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drw_free(Drw *drw)
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{
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@ -224,196 +162,6 @@ drw_scm_create(Drw *drw, const char *clrnames[], size_t clrcount)
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return ret;
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}
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void
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drw_setfontset(Drw *drw, Fnt *set)
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{
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if (drw)
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drw->fonts = set;
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}
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void
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drw_setscheme(Drw *drw, Clr *scm)
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{
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if (drw)
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drw->scheme = scm;
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}
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void
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drw_rect(Drw *drw, int x, int y, unsigned int w, unsigned int h, int filled, int invert)
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{
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if (!drw || !drw->scheme)
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return;
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XSetForeground(drw->dpy, drw->gc, invert ? drw->scheme[ColBg].pixel : drw->scheme[ColFg].pixel);
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if (filled)
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XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h);
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else
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XDrawRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w - 1, h - 1);
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}
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int
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drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lpad, const char *text, int invert)
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{
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char buf[1024];
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int ty;
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unsigned int ew;
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XftDraw *d = NULL;
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Fnt *usedfont, *curfont, *nextfont;
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size_t i, len;
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int utf8strlen, utf8charlen, render = x || y || w || h;
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long utf8codepoint = 0;
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const char *utf8str;
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FcCharSet *fccharset;
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FcPattern *fcpattern;
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FcPattern *match;
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XftResult result;
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int charexists = 0;
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if (!drw || (render && !drw->scheme) || !text || !drw->fonts)
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return 0;
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if (!render) {
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w = ~w;
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} else {
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XSetForeground(drw->dpy, drw->gc, drw->scheme[invert ? ColFg : ColBg].pixel);
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XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h);
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d = XftDrawCreate(drw->dpy, drw->drawable,
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DefaultVisual(drw->dpy, drw->screen),
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DefaultColormap(drw->dpy, drw->screen));
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x += lpad;
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w -= lpad;
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}
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usedfont = drw->fonts;
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while (1) {
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utf8strlen = 0;
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utf8str = text;
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nextfont = NULL;
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while (*text) {
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utf8charlen = utf8decode(text, &utf8codepoint, UTF_SIZ);
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for (curfont = drw->fonts; curfont; curfont = curfont->next) {
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charexists = charexists || XftCharExists(drw->dpy, curfont->xfont, utf8codepoint);
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if (charexists) {
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if (curfont == usedfont) {
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utf8strlen += utf8charlen;
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text += utf8charlen;
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} else {
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nextfont = curfont;
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}
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break;
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}
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}
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if (!charexists || nextfont)
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break;
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else
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charexists = 0;
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}
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if (utf8strlen) {
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drw_font_getexts(usedfont, utf8str, utf8strlen, &ew, NULL);
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/* shorten text if necessary */
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for (len = MIN(utf8strlen, sizeof(buf) - 1); len && ew > w; len--)
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drw_font_getexts(usedfont, utf8str, len, &ew, NULL);
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if (len) {
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memcpy(buf, utf8str, len);
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buf[len] = '\0';
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if (len < utf8strlen)
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for (i = len; i && i > len - 3; buf[--i] = '.')
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; /* NOP */
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if (render) {
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ty = y + (h - usedfont->h) / 2 + usedfont->xfont->ascent;
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XftDrawStringUtf8(d, &drw->scheme[invert ? ColBg : ColFg],
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usedfont->xfont, x, ty, (XftChar8 *)buf, len);
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}
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x += ew;
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w -= ew;
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}
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}
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if (!*text) {
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break;
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} else if (nextfont) {
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charexists = 0;
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usedfont = nextfont;
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} else {
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/* Regardless of whether or not a fallback font is found, the
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* character must be drawn. */
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charexists = 1;
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fccharset = FcCharSetCreate();
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FcCharSetAddChar(fccharset, utf8codepoint);
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if (!drw->fonts->pattern) {
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/* Refer to the comment in xfont_create for more information. */
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fatal("the first font in the cache must be loaded from a font string.");
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}
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fcpattern = FcPatternDuplicate(drw->fonts->pattern);
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FcPatternAddCharSet(fcpattern, FC_CHARSET, fccharset);
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FcPatternAddBool(fcpattern, FC_SCALABLE, FcTrue);
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FcPatternAddBool(fcpattern, FC_COLOR, FcFalse);
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FcConfigSubstitute(NULL, fcpattern, FcMatchPattern);
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FcDefaultSubstitute(fcpattern);
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match = XftFontMatch(drw->dpy, drw->screen, fcpattern, &result);
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FcCharSetDestroy(fccharset);
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FcPatternDestroy(fcpattern);
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if (match) {
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usedfont = xfont_create(drw, NULL, match);
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if (usedfont && XftCharExists(drw->dpy, usedfont->xfont, utf8codepoint)) {
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for (curfont = drw->fonts; curfont->next; curfont = curfont->next)
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; /* NOP */
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curfont->next = usedfont;
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} else {
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xfont_free(usedfont);
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usedfont = drw->fonts;
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}
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}
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}
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}
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if (d)
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XftDrawDestroy(d);
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return x + (render ? w : 0);
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}
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void
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drw_map(Drw *drw, Window win, int x, int y, unsigned int w, unsigned int h)
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{
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if (!drw)
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return;
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XCopyArea(drw->dpy, drw->drawable, win, drw->gc, x, y, w, h, x, y);
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XSync(drw->dpy, False);
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}
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unsigned int
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drw_fontset_getwidth(Drw *drw, const char *text)
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{
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if (!drw || !drw->fonts || !text)
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return 0;
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return drw_text(drw, 0, 0, 0, 0, 0, text, 0);
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}
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void
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drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned int *w, unsigned int *h)
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{
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XGlyphInfo ext;
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if (!font || !text)
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return;
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XftTextExtentsUtf8(font->dpy, font->xfont, (XftChar8 *)text, len, &ext);
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if (w)
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*w = ext.xOff;
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if (h)
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*h = font->h;
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}
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Cur *
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drw_cur_create(Drw *drw, int shape)
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{
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16
src/drw.h
16
src/drw.h
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@ -29,32 +29,16 @@ typedef struct {
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/* Drawable abstraction */
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Drw *drw_create(Display *dpy, int screen, Window win, unsigned int w, unsigned int h);
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void drw_resize(Drw *drw, unsigned int w, unsigned int h);
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void drw_free(Drw *drw);
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/* Fnt abstraction */
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Fnt *drw_fontset_create(Drw* drw, const char *fonts[], size_t fontcount);
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void drw_fontset_free(Fnt* set);
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unsigned int drw_fontset_getwidth(Drw *drw, const char *text);
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void drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned int *w, unsigned int *h);
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/* Colorscheme abstraction */
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void drw_clr_create(Drw *drw, Clr *dest, const char *clrname);
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Clr *drw_scm_create(Drw *drw, const char *clrnames[], size_t clrcount);
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/* Cursor abstraction */
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Cur *drw_cur_create(Drw *drw, int shape);
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void drw_cur_free(Drw *drw, Cur *cursor);
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/* Drawing context manipulation */
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void drw_setfontset(Drw *drw, Fnt *set);
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void drw_setscheme(Drw *drw, Clr *scm);
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/* Drawing functions */
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void drw_rect(Drw *drw, int x, int y, unsigned int w, unsigned int h, int filled, int invert);
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int drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lpad, const char *text, int invert);
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/* Map functions */
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void drw_map(Drw *drw, Window win, int x, int y, unsigned int w, unsigned int h);
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#endif // _DRW_H
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