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Upgrade st to 8.4

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This commit is contained in:
Hektor Misplon
2021-02-21 17:22:18 +01:00
parent ed63a55488
commit 015b0f4ab2
23 changed files with 7645 additions and 0 deletions
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152
.suckless/st/patches/st-anysize-0.8.1.diff Normal file
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@@ -0,0 +1,152 @@
diff --git a/x.c b/x.c
index 00cb6b1..8f87c0f 100644
--- a/x.c
+++ b/x.c
@@ -78,6 +78,7 @@ typedef XftGlyphFontSpec GlyphFontSpec;
typedef struct {
int tw, th; /* tty width and height */
int w, h; /* window width and height */
+ int hborderpx, vborderpx;
int ch; /* char height */
int cw; /* char width */
int mode; /* window state/mode flags */
@@ -311,7 +312,7 @@ zoomreset(const Arg *arg)
int
evcol(XEvent *e)
{
- int x = e->xbutton.x - borderpx;
+ int x = e->xbutton.x - win.hborderpx;
LIMIT(x, 0, win.tw - 1);
return x / win.cw;
}
@@ -319,7 +320,7 @@ evcol(XEvent *e)
int
evrow(XEvent *e)
{
- int y = e->xbutton.y - borderpx;
+ int y = e->xbutton.y - win.vborderpx;
LIMIT(y, 0, win.th - 1);
return y / win.ch;
}
@@ -675,6 +676,9 @@ cresize(int width, int height)
col = MAX(1, col);
row = MAX(1, row);
+ win.hborderpx = (win.w - col * win.cw) / 2;
+ win.vborderpx = (win.h - row * win.ch) / 2;
+
tresize(col, row);
xresize(col, row);
ttyresize(win.tw, win.th);
@@ -793,8 +797,8 @@ xhints(void)
sizeh->flags = PSize | PResizeInc | PBaseSize | PMinSize;
sizeh->height = win.h;
sizeh->width = win.w;
- sizeh->height_inc = win.ch;
- sizeh->width_inc = win.cw;
+ sizeh->height_inc = 1;
+ sizeh->width_inc = 1;
sizeh->base_height = 2 * borderpx;
sizeh->base_width = 2 * borderpx;
sizeh->min_height = win.ch + 2 * borderpx;
@@ -1022,8 +1026,8 @@ xinit(int cols, int rows)
xloadcols();
/* adjust fixed window geometry */
- win.w = 2 * borderpx + cols * win.cw;
- win.h = 2 * borderpx + rows * win.ch;
+ win.w = 2 * win.hborderpx + cols * win.cw;
+ win.h = 2 * win.vborderpx + rows * win.ch;
if (xw.gm & XNegative)
xw.l += DisplayWidth(xw.dpy, xw.scr) - win.w - 2;
if (xw.gm & YNegative)
@@ -1123,7 +1127,7 @@ xinit(int cols, int rows)
int
xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x, int y)
{
- float winx = borderpx + x * win.cw, winy = borderpx + y * win.ch, xp, yp;
+ float winx = win.hborderpx + x * win.cw, winy = win.vborderpx + y * win.ch, xp, yp;
ushort mode, prevmode = USHRT_MAX;
Font *font = &dc.font;
int frcflags = FRC_NORMAL;
@@ -1259,7 +1263,7 @@ void
xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y)
{
int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1);
- int winx = borderpx + x * win.cw, winy = borderpx + y * win.ch,
+ int winx = win.hborderpx + x * win.cw, winy = win.vborderpx + y * win.ch,
width = charlen * win.cw;
Color *fg, *bg, *temp, revfg, revbg, truefg, truebg;
XRenderColor colfg, colbg;
@@ -1349,17 +1353,17 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
/* Intelligent cleaning up of the borders. */
if (x == 0) {
- xclear(0, (y == 0)? 0 : winy, borderpx,
+ xclear(0, (y == 0)? 0 : winy, win.vborderpx,
winy + win.ch +
- ((winy + win.ch >= borderpx + win.th)? win.h : 0));
+ ((winy + win.ch >= win.vborderpx + win.th)? win.h : 0));
}
- if (winx + width >= borderpx + win.tw) {
+ if (winx + width >= win.hborderpx + win.tw) {
xclear(winx + width, (y == 0)? 0 : winy, win.w,
- ((winy + win.ch >= borderpx + win.th)? win.h : (winy + win.ch)));
+ ((winy + win.ch >= win.vborderpx + win.th)? win.h : (winy + win.ch)));
}
if (y == 0)
- xclear(winx, 0, winx + width, borderpx);
- if (winy + win.ch >= borderpx + win.th)
+ xclear(winx, 0, winx + width, win.hborderpx);
+ if (winy + win.ch >= win.vborderpx + win.th)
xclear(winx, winy + win.ch, winx + width, win.h);
/* Clean up the region we want to draw to. */
@@ -1452,35 +1456,35 @@ xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
case 3: /* Blinking Underline */
case 4: /* Steady Underline */
XftDrawRect(xw.draw, &drawcol,
- borderpx + cx * win.cw,
- borderpx + (cy + 1) * win.ch - \
+ win.hborderpx + cx * win.cw,
+ win.vborderpx + (cy + 1) * win.ch - \
cursorthickness,
win.cw, cursorthickness);
break;
case 5: /* Blinking bar */
case 6: /* Steady bar */
XftDrawRect(xw.draw, &drawcol,
- borderpx + cx * win.cw,
- borderpx + cy * win.ch,
+ win.hborderpx + cx * win.cw,
+ win.vborderpx + cy * win.ch,
cursorthickness, win.ch);
break;
}
} else {
XftDrawRect(xw.draw, &drawcol,
- borderpx + cx * win.cw,
- borderpx + cy * win.ch,
+ win.hborderpx + cx * win.cw,
+ win.vborderpx + cy * win.ch,
win.cw - 1, 1);
XftDrawRect(xw.draw, &drawcol,
- borderpx + cx * win.cw,
- borderpx + cy * win.ch,
+ win.hborderpx + cx * win.cw,
+ win.vborderpx + cy * win.ch,
1, win.ch - 1);
XftDrawRect(xw.draw, &drawcol,
- borderpx + (cx + 1) * win.cw - 1,
- borderpx + cy * win.ch,
+ win.hborderpx + (cx + 1) * win.cw - 1,
+ win.vborderpx + cy * win.ch,
1, win.ch - 1);
XftDrawRect(xw.draw, &drawcol,
- borderpx + cx * win.cw,
- borderpx + (cy + 1) * win.ch - 1,
+ win.hborderpx + cx * win.cw,
+ win.vborderpx + (cy + 1) * win.ch - 1,
win.cw, 1);
}
}

12
.suckless/st/patches/st-clipboard-0.8.3.diff Normal file
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@@ -0,0 +1,12 @@
diff --git a/x.c b/x.c
index e5f1737..5cabd60 100644
--- a/x.c
+++ b/x.c
@@ -673,6 +673,7 @@ setsel(char *str, Time t)
XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, t);
if (XGetSelectionOwner(xw.dpy, XA_PRIMARY) != xw.win)
selclear();
+ clipcopy(NULL);
}
void

307
.suckless/st/patches/st-ligatures-scrollback-20200430-0.8.3.diff Normal file
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@@ -0,0 +1,307 @@
diff --git a/Makefile b/Makefile
index 470ac86..38240da 100644
--- a/Makefile
+++ b/Makefile
@@ -4,7 +4,7 @@
include config.mk
-SRC = st.c x.c
+SRC = st.c x.c hb.c
OBJ = $(SRC:.c=.o)
all: options st
@@ -22,7 +22,8 @@ config.h:
$(CC) $(STCFLAGS) -c $<
st.o: config.h st.h win.h
-x.o: arg.h config.h st.h win.h
+x.o: arg.h config.h st.h win.h hb.h
+hb.o: st.h
$(OBJ): config.h config.mk
diff --git a/config.mk b/config.mk
index beafc35..3df5c83 100644
--- a/config.mk
+++ b/config.mk
@@ -15,10 +15,12 @@ PKG_CONFIG = pkg-config
# includes and libs
INCS = -I$(X11INC) \
`$(PKG_CONFIG) --cflags fontconfig` \
- `$(PKG_CONFIG) --cflags freetype2`
+ `$(PKG_CONFIG) --cflags freetype2` \
+ `$(PKG_CONFIG) --cflags harfbuzz`
LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft \
`$(PKG_CONFIG) --libs fontconfig` \
- `$(PKG_CONFIG) --libs freetype2`
+ `$(PKG_CONFIG) --libs freetype2` \
+ `$(PKG_CONFIG) --libs harfbuzz`
# flags
STCPPFLAGS = -DVERSION=\"$(VERSION)\" -D_XOPEN_SOURCE=600
diff --git a/hb.c b/hb.c
new file mode 100644
index 0000000..7df2828
--- /dev/null
+++ b/hb.c
@@ -0,0 +1,136 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <math.h>
+#include <X11/Xft/Xft.h>
+#include <hb.h>
+#include <hb-ft.h>
+
+#include "st.h"
+
+void hbtransformsegment(XftFont *xfont, const Glyph *string, hb_codepoint_t *codepoints, int start, int length);
+hb_font_t *hbfindfont(XftFont *match);
+
+typedef struct {
+ XftFont *match;
+ hb_font_t *font;
+} HbFontMatch;
+
+static int hbfontslen = 0;
+static HbFontMatch *hbfontcache = NULL;
+
+void
+hbunloadfonts()
+{
+ for (int i = 0; i < hbfontslen; i++) {
+ hb_font_destroy(hbfontcache[i].font);
+ XftUnlockFace(hbfontcache[i].match);
+ }
+
+ if (hbfontcache != NULL) {
+ free(hbfontcache);
+ hbfontcache = NULL;
+ }
+ hbfontslen = 0;
+}
+
+hb_font_t *
+hbfindfont(XftFont *match)
+{
+ for (int i = 0; i < hbfontslen; i++) {
+ if (hbfontcache[i].match == match)
+ return hbfontcache[i].font;
+ }
+
+ /* Font not found in cache, caching it now. */
+ hbfontcache = realloc(hbfontcache, sizeof(HbFontMatch) * (hbfontslen + 1));
+ FT_Face face = XftLockFace(match);
+ hb_font_t *font = hb_ft_font_create(face, NULL);
+ if (font == NULL)
+ die("Failed to load Harfbuzz font.");
+
+ hbfontcache[hbfontslen].match = match;
+ hbfontcache[hbfontslen].font = font;
+ hbfontslen += 1;
+
+ return font;
+}
+
+void
+hbtransform(XftGlyphFontSpec *specs, const Glyph *glyphs, size_t len, int x, int y)
+{
+ int start = 0, length = 1, gstart = 0;
+ hb_codepoint_t *codepoints = calloc(len, sizeof(hb_codepoint_t));
+
+ for (int idx = 1, specidx = 1; idx < len; idx++) {
+ if (glyphs[idx].mode & ATTR_WDUMMY) {
+ length += 1;
+ continue;
+ }
+
+ if (specs[specidx].font != specs[start].font || ATTRCMP(glyphs[gstart], glyphs[idx]) || selected(x + idx, y) != selected(x + gstart, y)) {
+ hbtransformsegment(specs[start].font, glyphs, codepoints, gstart, length);
+
+ /* Reset the sequence. */
+ length = 1;
+ start = specidx;
+ gstart = idx;
+ } else {
+ length += 1;
+ }
+
+ specidx++;
+ }
+
+ /* EOL. */
+ hbtransformsegment(specs[start].font, glyphs, codepoints, gstart, length);
+
+ /* Apply the transformation to glyph specs. */
+ for (int i = 0, specidx = 0; i < len; i++) {
+ if (glyphs[i].mode & ATTR_WDUMMY)
+ continue;
+
+ if (codepoints[i] != specs[specidx].glyph)
+ ((Glyph *)glyphs)[i].mode |= ATTR_LIGA;
+
+ specs[specidx++].glyph = codepoints[i];
+ }
+
+ free(codepoints);
+}
+
+void
+hbtransformsegment(XftFont *xfont, const Glyph *string, hb_codepoint_t *codepoints, int start, int length)
+{
+ hb_font_t *font = hbfindfont(xfont);
+ if (font == NULL)
+ return;
+
+ Rune rune;
+ ushort mode = USHRT_MAX;
+ hb_buffer_t *buffer = hb_buffer_create();
+ hb_buffer_set_direction(buffer, HB_DIRECTION_LTR);
+
+ /* Fill buffer with codepoints. */
+ for (int i = start; i < (start+length); i++) {
+ rune = string[i].u;
+ mode = string[i].mode;
+ if (mode & ATTR_WDUMMY)
+ rune = 0x0020;
+ hb_buffer_add_codepoints(buffer, &rune, 1, 0, 1);
+ }
+
+ /* Shape the segment. */
+ hb_shape(font, buffer, NULL, 0);
+
+ /* Get new glyph info. */
+ hb_glyph_info_t *info = hb_buffer_get_glyph_infos(buffer, NULL);
+
+ /* Write new codepoints. */
+ for (int i = 0; i < length; i++) {
+ hb_codepoint_t gid = info[i].codepoint;
+ codepoints[start+i] = gid;
+ }
+
+ /* Cleanup. */
+ hb_buffer_destroy(buffer);
+}
diff --git a/hb.h b/hb.h
new file mode 100644
index 0000000..b3e02d0
--- /dev/null
+++ b/hb.h
@@ -0,0 +1,7 @@
+#include <X11/Xft/Xft.h>
+#include <hb.h>
+#include <hb-ft.h>
+
+void hbunloadfonts();
+void hbtransform(XftGlyphFontSpec *, const Glyph *, size_t, int, int);
+
diff --git a/st.c b/st.c
index 641edc0..14a0b66 100644
--- a/st.c
+++ b/st.c
@@ -2670,7 +2670,8 @@ draw(void)
drawregion(0, 0, term.col, term.row);
if (term.scr == 0)
xdrawcursor(cx, term.c.y, term.line[term.c.y][cx],
- term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
+ term.ocx, term.ocy, term.line[term.ocy][term.ocx],
+ term.line[term.ocy], term.col);
term.ocx = cx;
term.ocy = term.c.y;
xfinishdraw();
diff --git a/st.h b/st.h
index b9a4eeb..b49b84a 100644
--- a/st.h
+++ b/st.h
@@ -11,7 +11,8 @@
#define DIVCEIL(n, d) (((n) + ((d) - 1)) / (d))
#define DEFAULT(a, b) (a) = (a) ? (a) : (b)
#define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
-#define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || \
+#define ATTRCMP(a, b) (((a).mode & (~ATTR_WRAP) & (~ATTR_LIGA)) != ((b).mode & (~ATTR_WRAP) & (~ATTR_LIGA)) || \
+ (a).fg != (b).fg || \
(a).bg != (b).bg)
#define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + \
(t1.tv_nsec-t2.tv_nsec)/1E6)
@@ -33,6 +34,7 @@ enum glyph_attribute {
ATTR_WRAP = 1 << 8,
ATTR_WIDE = 1 << 9,
ATTR_WDUMMY = 1 << 10,
+ ATTR_LIGA = 1 << 11,
ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
};
diff --git a/win.h b/win.h
index a6ef1b9..bc0d180 100644
--- a/win.h
+++ b/win.h
@@ -25,7 +25,7 @@ enum win_mode {
void xbell(void);
void xclipcopy(void);
-void xdrawcursor(int, int, Glyph, int, int, Glyph);
+void xdrawcursor(int, int, Glyph, int, int, Glyph, Line, int);
void xdrawline(Line, int, int, int);
void xfinishdraw(void);
void xloadcols(void);
diff --git a/x.c b/x.c
index e5f1737..3334a83 100644
--- a/x.c
+++ b/x.c
@@ -19,6 +19,7 @@ char *argv0;
#include "arg.h"
#include "st.h"
#include "win.h"
+#include "hb.h"
/* types used in config.h */
typedef struct {
@@ -1031,6 +1032,9 @@ xunloadfont(Font *f)
void
xunloadfonts(void)
{
+ /* Clear Harfbuzz font cache. */
+ hbunloadfonts();
+
/* Free the loaded fonts in the font cache. */
while (frclen > 0)
XftFontClose(xw.dpy, frc[--frclen].font);
@@ -1229,7 +1233,7 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
mode = glyphs[i].mode;
/* Skip dummy wide-character spacing. */
- if (mode == ATTR_WDUMMY)
+ if (mode & ATTR_WDUMMY)
continue;
/* Determine font for glyph if different from previous glyph. */
@@ -1336,6 +1340,9 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
numspecs++;
}
+ /* Harfbuzz transformation for ligatures. */
+ hbtransform(specs, glyphs, len, x, y);
+
return numspecs;
}
@@ -1485,14 +1492,17 @@ xdrawglyph(Glyph g, int x, int y)
}
void
-xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
+xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og, Line line, int len)
{
Color drawcol;
/* remove the old cursor */
if (selected(ox, oy))
og.mode ^= ATTR_REVERSE;
- xdrawglyph(og, ox, oy);
+
+ /* Redraw the line where cursor was previously.
+ * It will restore the ligatures broken by the cursor. */
+ xdrawline(line, 0, oy, len);
if (IS_SET(MODE_HIDE))
return;

79
.suckless/st/patches/st-newterm-0.8.2.diff Normal file
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@@ -0,0 +1,79 @@
From a7eedc85e0609177cdb1ed3f6203fa37e6420012 Mon Sep 17 00:00:00 2001
From: Matias Lang <yo@matiaslang.me>
Date: Wed, 17 Jul 2019 01:10:44 -0300
Subject: [PATCH] Add shortcut to spawn new terminal in the current dir
Ctrl-Shift-Return now creates a new ST terminal, whose CWD is the same
as the parent st's CWD
---
config.h | 1 +
st.c | 21 +++++++++++++++++++++
st.h | 1 +
3 files changed, 23 insertions(+)
diff --git a/config.h b/config.h
index 0e01717..31f26d8 100644
--- a/config.h
+++ b/config.h
@@ -178,6 +178,7 @@ static Shortcut shortcuts[] = {
{ TERMMOD, XK_Y, selpaste, {.i = 0} },
{ ShiftMask, XK_Insert, selpaste, {.i = 0} },
{ TERMMOD, XK_Num_Lock, numlock, {.i = 0} },
+ { TERMMOD, XK_Return, newterm, {.i = 0} },
};
/*
diff --git a/st.c b/st.c
index b8e6077..044e29b 100644
--- a/st.c
+++ b/st.c
@@ -153,6 +153,7 @@ typedef struct {
} STREscape;
static void execsh(char *, char **);
+static char *getcwd_by_pid(pid_t pid);
static void stty(char **);
static void sigchld(int);
static void ttywriteraw(const char *, size_t);
@@ -1059,6 +1060,26 @@ tswapscreen(void)
tfulldirt();
}
+void
+newterm(const Arg* a)
+{
+ switch (fork()) {
+ case -1:
+ die("fork failed: %s\n", strerror(errno));
+ break;
+ case 0:
+ chdir(getcwd_by_pid(pid));
+ execlp("st", "./st", NULL);
+ break;
+ }
+}
+
+static char *getcwd_by_pid(pid_t pid) {
+ char buf[32];
+ snprintf(buf, sizeof buf, "/proc/%d/cwd", pid);
+ return realpath(buf, NULL);
+}
+
void
tscrolldown(int orig, int n)
{
diff --git a/st.h b/st.h
index 38c61c4..54d4a43 100644
--- a/st.h
+++ b/st.h
@@ -80,6 +80,7 @@ void die(const char *, ...);
void redraw(void);
void draw(void);
+void newterm(const Arg *);
void printscreen(const Arg *);
void printsel(const Arg *);
void sendbreak(const Arg *);
--
2.19.2

351
.suckless/st/patches/st-scrollback-20200419-72e3f6c.diff Normal file
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@@ -0,0 +1,351 @@
diff --git a/config.def.h b/config.def.h
index 0895a1f..eef24df 100644
--- a/config.def.h
+++ b/config.def.h
@@ -188,6 +188,8 @@ static Shortcut shortcuts[] = {
{ TERMMOD, XK_Y, selpaste, {.i = 0} },
{ ShiftMask, XK_Insert, selpaste, {.i = 0} },
{ TERMMOD, XK_Num_Lock, numlock, {.i = 0} },
+ { ShiftMask, XK_Page_Up, kscrollup, {.i = -1} },
+ { ShiftMask, XK_Page_Down, kscrolldown, {.i = -1} },
};
/*
diff --git a/st.c b/st.c
index 0ce6ac2..641edc0 100644
--- a/st.c
+++ b/st.c
@@ -35,6 +35,7 @@
#define ESC_ARG_SIZ 16
#define STR_BUF_SIZ ESC_BUF_SIZ
#define STR_ARG_SIZ ESC_ARG_SIZ
+#define HISTSIZE 2000
/* macros */
#define IS_SET(flag) ((term.mode & (flag)) != 0)
@@ -42,6 +43,9 @@
#define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f))
#define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c))
#define ISDELIM(u) (u && wcschr(worddelimiters, u))
+#define TLINE(y) ((y) < term.scr ? term.hist[((y) + term.histi - \
+ term.scr + HISTSIZE + 1) % HISTSIZE] : \
+ term.line[(y) - term.scr])
enum term_mode {
MODE_WRAP = 1 << 0,
@@ -117,6 +121,9 @@ typedef struct {
int col; /* nb col */
Line *line; /* screen */
Line *alt; /* alternate screen */
+ Line hist[HISTSIZE]; /* history buffer */
+ int histi; /* history index */
+ int scr; /* scroll back */
int *dirty; /* dirtyness of lines */
TCursor c; /* cursor */
int ocx; /* old cursor col */
@@ -185,8 +192,8 @@ static void tnewline(int);
static void tputtab(int);
static void tputc(Rune);
static void treset(void);
-static void tscrollup(int, int);
-static void tscrolldown(int, int);
+static void tscrollup(int, int, int);
+static void tscrolldown(int, int, int);
static void tsetattr(int *, int);
static void tsetchar(Rune, Glyph *, int, int);
static void tsetdirt(int, int);
@@ -415,10 +422,10 @@ tlinelen(int y)
{
int i = term.col;
- if (term.line[y][i - 1].mode & ATTR_WRAP)
+ if (TLINE(y)[i - 1].mode & ATTR_WRAP)
return i;
- while (i > 0 && term.line[y][i - 1].u == ' ')
+ while (i > 0 && TLINE(y)[i - 1].u == ' ')
--i;
return i;
@@ -527,7 +534,7 @@ selsnap(int *x, int *y, int direction)
* Snap around if the word wraps around at the end or
* beginning of a line.
*/
- prevgp = &term.line[*y][*x];
+ prevgp = &TLINE(*y)[*x];
prevdelim = ISDELIM(prevgp->u);
for (;;) {
newx = *x + direction;
@@ -542,14 +549,14 @@ selsnap(int *x, int *y, int direction)
yt = *y, xt = *x;
else
yt = newy, xt = newx;
- if (!(term.line[yt][xt].mode & ATTR_WRAP))
+ if (!(TLINE(yt)[xt].mode & ATTR_WRAP))
break;
}
if (newx >= tlinelen(newy))
break;
- gp = &term.line[newy][newx];
+ gp = &TLINE(newy)[newx];
delim = ISDELIM(gp->u);
if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim
|| (delim && gp->u != prevgp->u)))
@@ -570,14 +577,14 @@ selsnap(int *x, int *y, int direction)
*x = (direction < 0) ? 0 : term.col - 1;
if (direction < 0) {
for (; *y > 0; *y += direction) {
- if (!(term.line[*y-1][term.col-1].mode
+ if (!(TLINE(*y-1)[term.col-1].mode
& ATTR_WRAP)) {
break;
}
}
} else if (direction > 0) {
for (; *y < term.row-1; *y += direction) {
- if (!(term.line[*y][term.col-1].mode
+ if (!(TLINE(*y)[term.col-1].mode
& ATTR_WRAP)) {
break;
}
@@ -608,13 +615,13 @@ getsel(void)
}
if (sel.type == SEL_RECTANGULAR) {
- gp = &term.line[y][sel.nb.x];
+ gp = &TLINE(y)[sel.nb.x];
lastx = sel.ne.x;
} else {
- gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0];
+ gp = &TLINE(y)[sel.nb.y == y ? sel.nb.x : 0];
lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1;
}
- last = &term.line[y][MIN(lastx, linelen-1)];
+ last = &TLINE(y)[MIN(lastx, linelen-1)];
while (last >= gp && last->u == ' ')
--last;
@@ -849,6 +856,9 @@ void
ttywrite(const char *s, size_t n, int may_echo)
{
const char *next;
+ Arg arg = (Arg) { .i = term.scr };
+
+ kscrolldown(&arg);
if (may_echo && IS_SET(MODE_ECHO))
twrite(s, n, 1);
@@ -1060,13 +1070,53 @@ tswapscreen(void)
}
void
-tscrolldown(int orig, int n)
+kscrolldown(const Arg* a)
+{
+ int n = a->i;
+
+ if (n < 0)
+ n = term.row + n;
+
+ if (n > term.scr)
+ n = term.scr;
+
+ if (term.scr > 0) {
+ term.scr -= n;
+ selscroll(0, -n);
+ tfulldirt();
+ }
+}
+
+void
+kscrollup(const Arg* a)
+{
+ int n = a->i;
+
+ if (n < 0)
+ n = term.row + n;
+
+ if (term.scr <= HISTSIZE-n) {
+ term.scr += n;
+ selscroll(0, n);
+ tfulldirt();
+ }
+}
+
+void
+tscrolldown(int orig, int n, int copyhist)
{
int i;
Line temp;
LIMIT(n, 0, term.bot-orig+1);
+ if (copyhist) {
+ term.histi = (term.histi - 1 + HISTSIZE) % HISTSIZE;
+ temp = term.hist[term.histi];
+ term.hist[term.histi] = term.line[term.bot];
+ term.line[term.bot] = temp;
+ }
+
tsetdirt(orig, term.bot-n);
tclearregion(0, term.bot-n+1, term.col-1, term.bot);
@@ -1076,17 +1126,28 @@ tscrolldown(int orig, int n)
term.line[i-n] = temp;
}
- selscroll(orig, n);
+ if (term.scr == 0)
+ selscroll(orig, n);
}
void
-tscrollup(int orig, int n)
+tscrollup(int orig, int n, int copyhist)
{
int i;
Line temp;
LIMIT(n, 0, term.bot-orig+1);
+ if (copyhist) {
+ term.histi = (term.histi + 1) % HISTSIZE;
+ temp = term.hist[term.histi];
+ term.hist[term.histi] = term.line[orig];
+ term.line[orig] = temp;
+ }
+
+ if (term.scr > 0 && term.scr < HISTSIZE)
+ term.scr = MIN(term.scr + n, HISTSIZE-1);
+
tclearregion(0, orig, term.col-1, orig+n-1);
tsetdirt(orig+n, term.bot);
@@ -1096,7 +1157,8 @@ tscrollup(int orig, int n)
term.line[i+n] = temp;
}
- selscroll(orig, -n);
+ if (term.scr == 0)
+ selscroll(orig, -n);
}
void
@@ -1135,7 +1197,7 @@ tnewline(int first_col)
int y = term.c.y;
if (y == term.bot) {
- tscrollup(term.top, 1);
+ tscrollup(term.top, 1, 1);
} else {
y++;
}
@@ -1300,14 +1362,14 @@ void
tinsertblankline(int n)
{
if (BETWEEN(term.c.y, term.top, term.bot))
- tscrolldown(term.c.y, n);
+ tscrolldown(term.c.y, n, 0);
}
void
tdeleteline(int n)
{
if (BETWEEN(term.c.y, term.top, term.bot))
- tscrollup(term.c.y, n);
+ tscrollup(term.c.y, n, 0);
}
int32_t
@@ -1738,11 +1800,11 @@ csihandle(void)
break;
case 'S': /* SU -- Scroll <n> line up */
DEFAULT(csiescseq.arg[0], 1);
- tscrollup(term.top, csiescseq.arg[0]);
+ tscrollup(term.top, csiescseq.arg[0], 0);
break;
case 'T': /* SD -- Scroll <n> line down */
DEFAULT(csiescseq.arg[0], 1);
- tscrolldown(term.top, csiescseq.arg[0]);
+ tscrolldown(term.top, csiescseq.arg[0], 0);
break;
case 'L': /* IL -- Insert <n> blank lines */
DEFAULT(csiescseq.arg[0], 1);
@@ -2248,7 +2310,7 @@ eschandle(uchar ascii)
return 0;
case 'D': /* IND -- Linefeed */
if (term.c.y == term.bot) {
- tscrollup(term.top, 1);
+ tscrollup(term.top, 1, 1);
} else {
tmoveto(term.c.x, term.c.y+1);
}
@@ -2261,7 +2323,7 @@ eschandle(uchar ascii)
break;
case 'M': /* RI -- Reverse index */
if (term.c.y == term.top) {
- tscrolldown(term.top, 1);
+ tscrolldown(term.top, 1, 1);
} else {
tmoveto(term.c.x, term.c.y-1);
}
@@ -2482,7 +2544,7 @@ twrite(const char *buf, int buflen, int show_ctrl)
void
tresize(int col, int row)
{
- int i;
+ int i, j;
int minrow = MIN(row, term.row);
int mincol = MIN(col, term.col);
int *bp;
@@ -2519,6 +2581,14 @@ tresize(int col, int row)
term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
+ for (i = 0; i < HISTSIZE; i++) {
+ term.hist[i] = xrealloc(term.hist[i], col * sizeof(Glyph));
+ for (j = mincol; j < col; j++) {
+ term.hist[i][j] = term.c.attr;
+ term.hist[i][j].u = ' ';
+ }
+ }
+
/* resize each row to new width, zero-pad if needed */
for (i = 0; i < minrow; i++) {
term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
@@ -2577,7 +2647,7 @@ drawregion(int x1, int y1, int x2, int y2)
continue;
term.dirty[y] = 0;
- xdrawline(term.line[y], x1, y, x2);
+ xdrawline(TLINE(y), x1, y, x2);
}
}
@@ -2598,8 +2668,9 @@ draw(void)
cx--;
drawregion(0, 0, term.col, term.row);
- xdrawcursor(cx, term.c.y, term.line[term.c.y][cx],
- term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
+ if (term.scr == 0)
+ xdrawcursor(cx, term.c.y, term.line[term.c.y][cx],
+ term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
term.ocx = cx;
term.ocy = term.c.y;
xfinishdraw();
diff --git a/st.h b/st.h
index d978458..b9a4eeb 100644
--- a/st.h
+++ b/st.h
@@ -81,6 +81,8 @@ void die(const char *, ...);
void redraw(void);
void draw(void);
+void kscrolldown(const Arg *);
+void kscrollup(const Arg *);
void printscreen(const Arg *);
void printsel(const Arg *);
void sendbreak(const Arg *);