mirror of
https://github.com/eRgo35/dwm.git
synced 2025-12-16 13:46:11 +01:00
BREAKING-CHANGE: fresh start; all mods removed; synced to master
This commit is contained in:
198
drw.c
198
drw.c
@@ -35,12 +35,6 @@ apply_fribidi(const char *str)
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#if !BAR_PANGO_PATCH
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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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#endif // BAR_PANGO_PATCH
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#if BAR_POWERLINE_TAGS_PATCH || BAR_POWERLINE_STATUS_PATCH
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@@ -48,47 +42,39 @@ Clr transcheme[3];
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#endif // BAR_POWERLINE_TAGS_PATCH | BAR_POWERLINE_STATUS_PATCH
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#if !BAR_PANGO_PATCH
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static long
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utf8decodebyte(const char c, size_t *i)
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static int
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utf8decode(const char *s_in, long *u, int *err)
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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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static const unsigned char lens[] = {
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/* 0XXXX */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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/* 10XXX */ 0, 0, 0, 0, 0, 0, 0, 0, /* invalid */
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/* 110XX */ 2, 2, 2, 2,
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/* 1110X */ 3, 3,
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/* 11110 */ 4,
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/* 11111 */ 0, /* invalid */
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};
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static const unsigned char leading_mask[] = { 0x7F, 0x1F, 0x0F, 0x07 };
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static const unsigned int overlong[] = { 0x0, 0x80, 0x0800, 0x10000 };
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const unsigned char *s = (const unsigned char *)s_in;
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int len = lens[*s >> 3];
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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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*err = 1;
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if (len == 0)
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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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long cp = s[0] & leading_mask[len - 1];
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for (int i = 1; i < len; ++i) {
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if (s[i] == '\0' || (s[i] & 0xC0) != 0x80)
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return i;
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cp = (cp << 6) | (s[i] & 0x3F);
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}
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/* out of range, surrogate, overlong encoding */
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if (cp > 0x10FFFF || (cp >> 11) == 0x1B || cp < overlong[len - 1])
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return len;
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*err = 0;
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*u = cp;
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return len;
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}
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#endif // BAR_PANGO_PATCH
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@@ -337,14 +323,22 @@ drw_clr_create(
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#if BAR_ALPHA_PATCH
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if (!XftColorAllocName(drw->dpy, drw->visual, drw->cmap,
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clrname, dest))
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#if DO_NOT_DIE_ON_COLOR_ALLOCATION_FAILURE_PATCH
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fprintf(stderr, "warning, cannot allocate color '%s'", clrname);
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#else
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die("error, cannot allocate color '%s'", clrname);
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#endif // DO_NOT_DIE_ON_COLOR_ALLOCATION_FAILURE_PATCH
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dest->pixel = (dest->pixel & 0x00ffffffU) | (alpha << 24);
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#else
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if (!XftColorAllocName(drw->dpy, DefaultVisual(drw->dpy, drw->screen),
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DefaultColormap(drw->dpy, drw->screen),
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clrname, dest))
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#if DO_NOT_DIE_ON_COLOR_ALLOCATION_FAILURE_PATCH
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fprintf(stderr, "warning, cannot allocate color '%s'", clrname);
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#else
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die("error, cannot allocate color '%s'", clrname);
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#endif // DO_NOT_DIE_ON_COLOR_ALLOCATION_FAILURE_PATCH
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#if NO_TRANSPARENT_BORDERS_PATCH
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dest->pixel |= 0xff << 24;
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@@ -428,10 +422,10 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
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{
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#if BAR_PANGO_PATCH
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char buf[1024];
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int ty;
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unsigned int ew;
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int i, ty, th;
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unsigned int ew, eh;
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XftDraw *d = NULL;
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size_t i, len;
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size_t len;
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int render = x || y || w || h;
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if (!drw || (render && !drw->scheme) || !text || !drw->fonts)
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@@ -442,6 +436,8 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
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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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if (w < lpad)
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return x + w;
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#if BAR_ALPHA_PATCH
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d = XftDrawCreate(drw->dpy, drw->drawable, drw->visual, drw->cmap);
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#else
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@@ -456,10 +452,14 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
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len = strlen(text);
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if (len) {
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drw_font_getexts(drw->fonts, text, len, &ew, NULL, markup);
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drw_font_getexts(drw->fonts, text, len, &ew, &eh, markup);
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th = eh;
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/* shorten text if necessary */
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for (len = MIN(len, sizeof(buf) - 1); len && ew > w; len--)
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drw_font_getexts(drw->fonts, text, len, &ew, NULL, markup);
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for (len = MIN(len, sizeof(buf) - 1); len && ew > w; len--) {
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drw_font_getexts(drw->fonts, text, len, &ew, &eh, markup);
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if (eh > th)
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th = eh;
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}
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if (len) {
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memcpy(buf, text, len);
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@@ -469,7 +469,7 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
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; /* NOP */
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if (render) {
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ty = y + (h - drw->fonts->h) / 2;
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ty = y + (h - th) / 2;
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if (markup)
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pango_layout_set_markup(drw->fonts->layout, buf, len);
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else
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@@ -488,29 +488,32 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
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return x + (render ? w : 0);
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#else
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char buf[1024];
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int ty;
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unsigned int ew;
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int ty, ellipsis_x = 0;
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unsigned int tmpw, ew, ellipsis_w = 0, ellipsis_len, hash, h0, h1;
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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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int utf8strlen, utf8charlen, utf8err, 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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int charexists = 0, overflow = 0;
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/* keep track of a couple codepoints for which we have no match. */
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static unsigned int nomatches[128], ellipsis_width, invalid_width;
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static const char invalid[] = "<EFBFBD>";
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if (!drw || (render && !drw->scheme) || !text || !drw->fonts)
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if (!drw || (render && (!drw->scheme || !w)) || !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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w = invert ? invert : ~invert;
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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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if (w < lpad)
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return x + w;
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#if BAR_ALPHA_PATCH
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d = XftDrawCreate(drw->dpy, drw->drawable, drw->visual, drw->cmap);
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#else
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@@ -523,18 +526,40 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
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}
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usedfont = drw->fonts;
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if (!ellipsis_width && render)
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ellipsis_width = drw_fontset_getwidth(drw, "...", markup);
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if (!invalid_width && render)
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invalid_width = drw_fontset_getwidth(drw, invalid, markup);
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while (1) {
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utf8strlen = 0;
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ew = ellipsis_len = utf8err = utf8charlen = 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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utf8charlen = utf8decode(text, &utf8codepoint, &utf8err);
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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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drw_font_getexts(curfont, text, utf8charlen, &tmpw, NULL);
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if (ew + ellipsis_width <= w) {
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/* keep track where the ellipsis still fits */
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ellipsis_x = x + ew;
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ellipsis_w = w - ew;
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ellipsis_len = utf8strlen;
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}
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if (ew + tmpw > w) {
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overflow = 1;
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/* called from drw_fontset_getwidth_clamp():
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* it wants the width AFTER the overflow
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*/
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if (!render)
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x += tmpw;
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else
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utf8strlen = ellipsis_len;
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} else if (curfont == usedfont) {
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text += utf8charlen;
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utf8strlen += utf8err ? 0 : utf8charlen;
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ew += utf8err ? 0 : tmpw;
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} else {
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nextfont = curfont;
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}
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@@ -542,36 +567,31 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
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}
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}
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if (!charexists || nextfont)
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if (overflow || !charexists || nextfont || utf8err)
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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; drw_font_getexts(usedfont, utf8str, len, &ew, NULL))
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len--;
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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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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 *)utf8str, utf8strlen);
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}
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x += ew;
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w -= ew;
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}
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if (utf8err && (!render || invalid_width < w)) {
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if (render)
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drw_text(drw, x, y, w, h, 0, invalid, invert, markup);
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x += invalid_width;
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w -= invalid_width;
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}
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if (render && overflow)
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drw_text(drw, ellipsis_x, y, ellipsis_w, h, 0, "...", invert, markup);
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if (!*text) {
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if (!*text || overflow) {
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break;
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} else if (nextfont) {
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charexists = 0;
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@@ -581,6 +601,15 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
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* character must be drawn. */
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charexists = 1;
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hash = (unsigned int)utf8codepoint;
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hash = ((hash >> 16) ^ hash) * 0x21F0AAAD;
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hash = ((hash >> 15) ^ hash) * 0xD35A2D97;
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h0 = ((hash >> 15) ^ hash) % LENGTH(nomatches);
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h1 = (hash >> 17) % LENGTH(nomatches);
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/* avoid expensive XftFontMatch call when we know we won't find a match */
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if (nomatches[h0] == utf8codepoint || nomatches[h1] == utf8codepoint)
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goto no_match;
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fccharset = FcCharSetCreate();
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FcCharSetAddChar(fccharset, utf8codepoint);
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@@ -611,6 +640,8 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
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curfont->next = usedfont;
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} else {
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xfont_free(usedfont);
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nomatches[nomatches[h0] ? h1 : h0] = utf8codepoint;
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no_match:
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usedfont = drw->fonts;
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}
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}
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@@ -701,7 +732,7 @@ drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned int *w,
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if (w)
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*w = r.width / PANGO_SCALE;
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if (h)
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*h = font->h;
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*h = r.height / PANGO_SCALE;
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}
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#else
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void
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@@ -742,4 +773,3 @@ drw_cur_free(Drw *drw, Cur *cursor)
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XFreeCursor(drw->dpy, cursor->cursor);
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free(cursor);
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}
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