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authorterminaldweller <thabogre@gmail.com>2022-04-28 07:04:59 +0000
committerterminaldweller <thabogre@gmail.com>2022-04-28 07:04:59 +0000
commit0dd9f506f15143b08f8fc540fbe9bca3180ae5b2 (patch)
treee3f0f16d83f8f13f86c8dce31ad535cf961df9da
parentinitial commit (diff)
downloadst-0dd9f506f15143b08f8fc540fbe9bca3180ae5b2.tar.gz
st-0dd9f506f15143b08f8fc540fbe9bca3180ae5b2.zip
wide glyph patch
-rw-r--r--st-glyph-wide-support-20220411-ef05519.diff67
1 files changed, 67 insertions, 0 deletions
diff --git a/st-glyph-wide-support-20220411-ef05519.diff b/st-glyph-wide-support-20220411-ef05519.diff
new file mode 100644
index 0000000..671922e
--- /dev/null
+++ b/st-glyph-wide-support-20220411-ef05519.diff
@@ -0,0 +1,67 @@
+diff --git a/x.c b/x.c
+@@ -1648,32 +1641,39 @@ xstartdraw(void)
+ void
+ xdrawline(Line line, int x1, int y1, int x2)
+ {
+- int i, x, ox, numspecs;
++ int i, x, ox, numspecs, numspecs_cached;
+ Glyph base, new;
+- XftGlyphFontSpec *specs = xw.specbuf;
+-
+- numspecs = xmakeglyphfontspecs(specs, &line[x1], x2 - x1, x1, y1);
+- i = ox = 0;
+- for (x = x1; x < x2 && i < numspecs; x++) {
+- new = line[x];
+- if (new.mode == ATTR_WDUMMY)
+- continue;
+- if (selected(x, y1))
+- new.mode ^= ATTR_REVERSE;
+- if (i > 0 && ATTRCMP(base, new)) {
+- xdrawglyphfontspecs(specs, base, i, ox, y1);
+- specs += i;
+- numspecs -= i;
+- i = 0;
+- }
+- if (i == 0) {
+- ox = x;
+- base = new;
++ XftGlyphFontSpec *specs;
++
++ numspecs_cached = xmakeglyphfontspecs(xw.specbuf, &line[x1], x2 - x1, x1, y1);
++
++ /* Draw line in 2 passes: background and foreground. This way wide glyphs
++ won't get truncated (#223) */
++ for (int dmode = DRAW_BG; dmode <= DRAW_FG; dmode <<= 1) {
++ specs = xw.specbuf;
++ numspecs = numspecs_cached;
++ i = ox = 0;
++ for (x = x1; x < x2 && i < numspecs; x++) {
++ new = line[x];
++ if (new.mode == ATTR_WDUMMY)
++ continue;
++ if (selected(x, y1))
++ new.mode ^= ATTR_REVERSE;
++ if (i > 0 && ATTRCMP(base, new)) {
++ xdrawglyphfontspecs(specs, base, i, ox, y1, dmode);
++ specs += i;
++ numspecs -= i;
++ i = 0;
++ }
++ if (i == 0) {
++ ox = x;
++ base = new;
++ }
++ i++;
+ }
+- i++;
++ if (i > 0)
++ xdrawglyphfontspecs(specs, base, i, ox, y1, dmode);
+ }
+- if (i > 0)
+- xdrawglyphfontspecs(specs, base, i, ox, y1);
+ }
+
+ void
+--
+2.35.1
+