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Adding undercurl patch ref. #20

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This commit is contained in:
bakkeby 2021-05-08 10:53:46 +02:00
parent ce05a34de1
commit 79278e3d32
6 changed files with 187 additions and 2 deletions
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95
x.c
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@ -1713,7 +1713,100 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
/* Render underline and strikethrough. */
if (base.mode & ATTR_UNDERLINE) {
#if VERTCENTER_PATCH
#if UNDERCURL_PATCH
// Underline Color
int wlw = 1; // Wave Line Width
int linecolor;
if ((base.ucolor[0] >= 0) &&
!(base.mode & ATTR_BLINK && win.mode & MODE_BLINK) &&
!(base.mode & ATTR_INVISIBLE)
) {
// Special color for underline
// Index
if (base.ucolor[1] < 0) {
linecolor = dc.col[base.ucolor[0]].pixel;
}
// RGB
else {
XColor lcolor;
lcolor.red = base.ucolor[0] * 257;
lcolor.green = base.ucolor[1] * 257;
lcolor.blue = base.ucolor[2] * 257;
lcolor.flags = DoRed | DoGreen | DoBlue;
XAllocColor(xw.dpy, xw.cmap, &lcolor);
linecolor = lcolor.pixel;
}
} else {
// Foreground color for underline
linecolor = fg->pixel;
}
XGCValues ugcv = {
.foreground = linecolor,
.line_width = wlw,
.line_style = LineSolid,
.cap_style = CapNotLast
};
GC ugc = XCreateGC(xw.dpy, XftDrawDrawable(xw.draw),
GCForeground | GCLineWidth | GCLineStyle | GCCapStyle,
&ugcv);
// Underline Style
if (base.ustyle != 3) {
//XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1, width, 1);
XFillRectangle(xw.dpy, XftDrawDrawable(xw.draw), ugc, winx,
winy + dc.font.ascent + 1, width, wlw);
} else if (base.ustyle == 3) {
int ww = win.cw;//width;
int wh = dc.font.descent - wlw/2 - 1;//r.height/7;
int wx = winx;
int wy = winy + win.ch - dc.font.descent;
#if VERTCENTER_PATCH
wy += win.cyo;
#endif // VERTCENTER_PATCH
// Draw waves
int narcs = charlen * 2 + 1;
XArc *arcs = xmalloc(sizeof(XArc) * narcs);
int i = 0;
for (i = 0; i < charlen-1; i++) {
arcs[i*2] = (XArc) {
.x = wx + win.cw * i + ww / 4,
.y = wy,
.width = win.cw / 2,
.height = wh,
.angle1 = 0,
.angle2 = 180 * 64
};
arcs[i*2+1] = (XArc) {
.x = wx + win.cw * i + ww * 0.75,
.y = wy,
.width = win.cw/2,
.height = wh,
.angle1 = 180 * 64,
.angle2 = 180 * 64
};
}
// Last wave
arcs[i*2] = (XArc) {wx + ww * i + ww / 4, wy, ww / 2, wh,
0, 180 * 64 };
// Last wave tail
arcs[i*2+1] = (XArc) {wx + ww * i + ww * 0.75, wy, ceil(ww / 2.),
wh, 180 * 64, 90 * 64};
// First wave tail
i++;
arcs[i*2] = (XArc) {wx - ww/4 - 1, wy, ceil(ww / 2.), wh, 270 * 64,
90 * 64 };
XDrawArcs(xw.dpy, XftDrawDrawable(xw.draw), ugc, arcs, narcs);
free(arcs);
}
XFreeGC(xw.dpy, ugc);
#elif VERTCENTER_PATCH
XftDrawRect(xw.draw, fg, winx, winy + win.cyo + dc.font.ascent + 1,
width, 1);
#else