Adding undercurl patch ref. #20
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bakkeby
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ce05a34de1
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@ -15,7 +15,7 @@ Refer to [https://st.suckless.org/](https://st.suckless.org/) for details on the
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### Changelog:
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2021-05-08 - Added blinking cursor patch
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2021-05-08 - Added blinking cursor and undercurl patches
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2021-05-07 - Added xresources reload patch
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@ -169,6 +169,9 @@ Refer to [https://st.suckless.org/](https://st.suckless.org/) for details on the
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- [themed-cursor](https://st.suckless.org/patches/themed_cursor/)
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- instead of a default X cursor, use the xterm cursor from your cursor theme
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- [undercurl](https://st.suckless.org/patches/undercurl/)
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- adds support for special underlines, e.g. curly / wavy underlines
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- [vertcenter](https://st.suckless.org/patches/vertcenter/)
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- vertically center lines in the space available if you have set a larger chscale in config.h
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@ -258,6 +258,20 @@
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*/
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#define THEMED_CURSOR_PATCH 0
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/* Adds support for special underlines.
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*
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* Example test command:
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* $ echo -e "\e[4:3m\e[58:5:10munderline\e[0m"
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* ^ ^ ^ ^ ^- sets terminal color 10
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* | | | \- indicates that terminal colors should be used
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* | | \- indicates that underline color is being set
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* | \- sets underline style to curvy
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* \- set underline
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*
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* https://st.suckless.org/patches/undercurl/
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*/
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#define UNDERCURL_PATCH 0
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/* Vertically center lines in the space available if you have set a larger chscale in config.h
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* https://st.suckless.org/patches/vertcenter/
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*/
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67
st.c
67
st.c
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@ -42,6 +42,9 @@
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#define UTF_SIZ 4
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#define ESC_BUF_SIZ (128*UTF_SIZ)
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#define ESC_ARG_SIZ 16
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#if UNDERCURL_PATCH
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#define CAR_PER_ARG 4
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#endif // UNDERCURL_PATCH
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#define STR_BUF_SIZ ESC_BUF_SIZ
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#define STR_ARG_SIZ ESC_ARG_SIZ
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@ -126,6 +129,9 @@ typedef struct {
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int arg[ESC_ARG_SIZ];
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int narg; /* nb of args */
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char mode[2];
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#if UNDERCURL_PATCH
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int carg[ESC_ARG_SIZ][CAR_PER_ARG]; /* colon args */
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#endif // UNDERCURL_PATCH
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} CSIEscape;
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/* STR Escape sequence structs */
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@ -146,6 +152,9 @@ static void ttywriteraw(const char *, size_t);
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static void csidump(void);
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static void csihandle(void);
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#if UNDERCURL_PATCH
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static void readcolonargs(char **, int, int[][CAR_PER_ARG]);
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#endif // UNDERCURL_PATCH
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static void csiparse(void);
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static void csireset(void);
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static int eschandle(uchar);
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@ -1286,6 +1295,30 @@ tnewline(int first_col)
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tmoveto(first_col ? 0 : term.c.x, y);
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}
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#if UNDERCURL_PATCH
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void
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readcolonargs(char **p, int cursor, int params[][CAR_PER_ARG])
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{
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int i = 0;
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for (; i < CAR_PER_ARG; i++)
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params[cursor][i] = -1;
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if (**p != ':')
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return;
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char *np = NULL;
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i = 0;
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while (**p == ':' && i < CAR_PER_ARG) {
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while (**p == ':')
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(*p)++;
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params[cursor][i] = strtol(*p, &np, 10);
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*p = np;
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i++;
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}
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}
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#endif // UNDERCURL_PATCH
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void
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csiparse(void)
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{
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@ -1308,6 +1341,9 @@ csiparse(void)
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v = -1;
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csiescseq.arg[csiescseq.narg++] = v;
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p = np;
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#if UNDERCURL_PATCH
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readcolonargs(&p, csiescseq.narg-1, csiescseq.carg);
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#endif // UNDERCURL_PATCH
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if (*p != ';' || csiescseq.narg == ESC_ARG_SIZ)
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break;
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p++;
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@ -1537,6 +1573,12 @@ tsetattr(int *attr, int l)
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ATTR_STRUCK );
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term.c.attr.fg = defaultfg;
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term.c.attr.bg = defaultbg;
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#if UNDERCURL_PATCH
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term.c.attr.ustyle = -1;
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term.c.attr.ucolor[0] = -1;
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term.c.attr.ucolor[1] = -1;
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term.c.attr.ucolor[2] = -1;
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#endif // UNDERCURL_PATCH
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break;
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case 1:
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term.c.attr.mode |= ATTR_BOLD;
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@ -1548,7 +1590,18 @@ tsetattr(int *attr, int l)
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term.c.attr.mode |= ATTR_ITALIC;
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break;
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case 4:
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#if UNDERCURL_PATCH
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term.c.attr.ustyle = csiescseq.carg[i][0];
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if (term.c.attr.ustyle != 0)
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term.c.attr.mode |= ATTR_UNDERLINE;
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else
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term.c.attr.mode &= ~ATTR_UNDERLINE;
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term.c.attr.mode ^= ATTR_DIRTYUNDERLINE;
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#else
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term.c.attr.mode |= ATTR_UNDERLINE;
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#endif // UNDERCURL_PATCH
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break;
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case 5: /* slow blink */
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/* FALLTHROUGH */
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@ -1607,6 +1660,20 @@ tsetattr(int *attr, int l)
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case 49:
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term.c.attr.bg = defaultbg;
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break;
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#if UNDERCURL_PATCH
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case 58:
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term.c.attr.ucolor[0] = csiescseq.carg[i][1];
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term.c.attr.ucolor[1] = csiescseq.carg[i][2];
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term.c.attr.ucolor[2] = csiescseq.carg[i][3];
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term.c.attr.mode ^= ATTR_DIRTYUNDERLINE;
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break;
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case 59:
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term.c.attr.ucolor[0] = -1;
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term.c.attr.ucolor[1] = -1;
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term.c.attr.ucolor[2] = -1;
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term.c.attr.mode ^= ATTR_DIRTYUNDERLINE;
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break;
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#endif // UNDERCURL_PATCH
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default:
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if (BETWEEN(attr[i], 30, 37)) {
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#if MONOCHROME_PATCH
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7
st.h
7
st.h
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@ -59,6 +59,9 @@ enum glyph_attribute {
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ATTR_SIXEL = 1 << 13,
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#endif // SIXEL_PATCH
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ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
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#if UNDERCURL_PATCH
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ATTR_DIRTYUNDERLINE = 1 << 15,
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#endif // UNDERCURL_PATCH
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};
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#if SIXEL_PATCH
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@ -115,6 +118,10 @@ typedef struct {
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ushort mode; /* attribute flags */
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uint32_t fg; /* foreground */
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uint32_t bg; /* background */
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#if UNDERCURL_PATCH
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int ustyle; /* underline style */
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int ucolor[3]; /* underline color */
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#endif // UNDERCURL_PATCH
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} Glyph;
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typedef Glyph *Line;
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1
st.info
1
st.info
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@ -1,4 +1,5 @@
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st-mono| simpleterm monocolor,
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Su,
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acsc=+C\,D-A.B0E``aaffgghFiGjjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~,
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am,
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bce,
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95
x.c
95
x.c
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@ -1713,7 +1713,100 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
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/* Render underline and strikethrough. */
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if (base.mode & ATTR_UNDERLINE) {
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#if VERTCENTER_PATCH
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#if UNDERCURL_PATCH
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// Underline Color
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int wlw = 1; // Wave Line Width
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int linecolor;
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if ((base.ucolor[0] >= 0) &&
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!(base.mode & ATTR_BLINK && win.mode & MODE_BLINK) &&
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!(base.mode & ATTR_INVISIBLE)
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) {
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// Special color for underline
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// Index
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if (base.ucolor[1] < 0) {
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linecolor = dc.col[base.ucolor[0]].pixel;
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}
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// RGB
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else {
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XColor lcolor;
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lcolor.red = base.ucolor[0] * 257;
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lcolor.green = base.ucolor[1] * 257;
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lcolor.blue = base.ucolor[2] * 257;
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lcolor.flags = DoRed | DoGreen | DoBlue;
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XAllocColor(xw.dpy, xw.cmap, &lcolor);
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linecolor = lcolor.pixel;
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}
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} else {
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// Foreground color for underline
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linecolor = fg->pixel;
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}
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XGCValues ugcv = {
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.foreground = linecolor,
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.line_width = wlw,
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.line_style = LineSolid,
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.cap_style = CapNotLast
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};
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GC ugc = XCreateGC(xw.dpy, XftDrawDrawable(xw.draw),
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GCForeground | GCLineWidth | GCLineStyle | GCCapStyle,
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&ugcv);
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// Underline Style
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if (base.ustyle != 3) {
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//XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1, width, 1);
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XFillRectangle(xw.dpy, XftDrawDrawable(xw.draw), ugc, winx,
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winy + dc.font.ascent + 1, width, wlw);
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} else if (base.ustyle == 3) {
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int ww = win.cw;//width;
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int wh = dc.font.descent - wlw/2 - 1;//r.height/7;
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int wx = winx;
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int wy = winy + win.ch - dc.font.descent;
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#if VERTCENTER_PATCH
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wy += win.cyo;
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#endif // VERTCENTER_PATCH
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// Draw waves
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int narcs = charlen * 2 + 1;
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XArc *arcs = xmalloc(sizeof(XArc) * narcs);
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int i = 0;
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for (i = 0; i < charlen-1; i++) {
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arcs[i*2] = (XArc) {
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.x = wx + win.cw * i + ww / 4,
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.y = wy,
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.width = win.cw / 2,
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.height = wh,
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.angle1 = 0,
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.angle2 = 180 * 64
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};
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arcs[i*2+1] = (XArc) {
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.x = wx + win.cw * i + ww * 0.75,
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.y = wy,
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.width = win.cw/2,
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.height = wh,
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.angle1 = 180 * 64,
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.angle2 = 180 * 64
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};
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}
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// Last wave
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arcs[i*2] = (XArc) {wx + ww * i + ww / 4, wy, ww / 2, wh,
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0, 180 * 64 };
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// Last wave tail
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arcs[i*2+1] = (XArc) {wx + ww * i + ww * 0.75, wy, ceil(ww / 2.),
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wh, 180 * 64, 90 * 64};
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// First wave tail
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i++;
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arcs[i*2] = (XArc) {wx - ww/4 - 1, wy, ceil(ww / 2.), wh, 270 * 64,
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90 * 64 };
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XDrawArcs(xw.dpy, XftDrawDrawable(xw.draw), ugc, arcs, narcs);
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free(arcs);
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}
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XFreeGC(xw.dpy, ugc);
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#elif VERTCENTER_PATCH
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XftDrawRect(xw.draw, fg, winx, winy + win.cyo + dc.font.ascent + 1,
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width, 1);
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#else
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