st/patches/st-focus-20230610-68d1ad9.diff

From e08d495aaa29c53273942985f40212ef72715604 Mon Sep 17 00:00:00 2001
From: Julius Huelsmann <juliusHuelsmann@gmail.com>
Date: Sat, 30 May 2020 01:11:42 +0200
Subject: [PATCH 1/7] chore: add alpha patch

---
 config.def.h | 11 +++++++----
 config.mk    |  2 +-
 st.h         |  1 +
 x.c          | 40 ++++++++++++++++++++++++++++++----------
 4 files changed, 39 insertions(+), 15 deletions(-)

diff --git a/config.def.h b/config.def.h
index 91ab8ca..6bd6e8d 100644
--- a/config.def.h
+++ b/config.def.h
@@ -93,6 +93,9 @@ char *termname = "st-256color";
  */
 unsigned int tabspaces = 8;
 
+/* bg opacity */
+float alpha = 0.8;
+
 /* Terminal colors (16 first used in escape sequence) */
 static const char *colorname[] = {
 	/* 8 normal colors */
@@ -120,8 +123,7 @@ static const char *colorname[] = {
 	/* more colors can be added after 255 to use with DefaultXX */
 	"#cccccc",
 	"#555555",
-	"gray90", /* default foreground colour */
-	"black", /* default background colour */
+	"black",
 };
 
 
@@ -129,8 +131,9 @@ static const char *colorname[] = {
  * Default colors (colorname index)
  * foreground, background, cursor, reverse cursor
  */
-unsigned int defaultfg = 258;
-unsigned int defaultbg = 259;
+unsigned int defaultfg = 7;
+unsigned int defaultbg = 258;
+//static 
 unsigned int defaultcs = 256;
 static unsigned int defaultrcs = 257;
 
diff --git a/config.mk b/config.mk
index 1e306f8..47c615e 100644
--- a/config.mk
+++ b/config.mk
@@ -16,7 +16,7 @@ PKG_CONFIG = pkg-config
 INCS = -I$(X11INC) \
        `$(PKG_CONFIG) --cflags fontconfig` \
        `$(PKG_CONFIG) --cflags freetype2`
-LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft \
+LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft -lXrender\
        `$(PKG_CONFIG) --libs fontconfig` \
        `$(PKG_CONFIG) --libs freetype2`
 
diff --git a/st.h b/st.h
index fd3b0d8..9f91e2a 100644
--- a/st.h
+++ b/st.h
@@ -124,3 +124,4 @@ extern unsigned int tabspaces;
 extern unsigned int defaultfg;
 extern unsigned int defaultbg;
 extern unsigned int defaultcs;
+extern float alpha;
diff --git a/x.c b/x.c
index 2a3bd38..27e81d1 100644
--- a/x.c
+++ b/x.c
@@ -105,6 +105,7 @@ typedef struct {
 	XSetWindowAttributes attrs;
 	int scr;
 	int isfixed; /* is fixed geometry? */
+	int depth; /* bit depth */
 	int l, t; /* left and top offset */
 	int gm; /* geometry mask */
 } XWindow;
@@ -243,6 +244,7 @@ static char *usedfont = NULL;
 static double usedfontsize = 0;
 static double defaultfontsize = 0;
 
+static char *opt_alpha = NULL;
 static char *opt_class = NULL;
 static char **opt_cmd  = NULL;
 static char *opt_embed = NULL;
@@ -752,7 +754,7 @@ xresize(int col, int row)
 
 	XFreePixmap(xw.dpy, xw.buf);
 	xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h,
-			DefaultDepth(xw.dpy, xw.scr));
+			xw.depth);
 	XftDrawChange(xw.draw, xw.buf);
 	xclear(0, 0, win.w, win.h);
 
@@ -812,6 +814,13 @@ xloadcols(void)
 			else
 				die("could not allocate color %d\n", i);
 		}
+
+	/* set alpha value of bg color */
+	if (opt_alpha)
+		alpha = strtof(opt_alpha, NULL);
+	dc.col[defaultbg].color.alpha = (unsigned short)(0xffff * alpha);
+	dc.col[defaultbg].pixel &= 0x00FFFFFF;
+	dc.col[defaultbg].pixel |= (unsigned char)(0xff * alpha) << 24;
 	loaded = 1;
 }
 
@@ -1134,11 +1143,23 @@ xinit(int cols, int rows)
 	Window parent;
 	pid_t thispid = getpid();
 	XColor xmousefg, xmousebg;
+	XWindowAttributes attr;
+	XVisualInfo vis;
 
 	if (!(xw.dpy = XOpenDisplay(NULL)))
 		die("can't open display\n");
 	xw.scr = XDefaultScreen(xw.dpy);
-	xw.vis = XDefaultVisual(xw.dpy, xw.scr);
+
+	if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0)))) {
+		parent = XRootWindow(xw.dpy, xw.scr);
+		xw.depth = 32;
+	} else {
+		XGetWindowAttributes(xw.dpy, parent, &attr);
+		xw.depth = attr.depth;
+	}
+
+	XMatchVisualInfo(xw.dpy, xw.scr, xw.depth, TrueColor, &vis);
+	xw.vis = vis.visual;
 
 	/* font */
 	if (!FcInit())
@@ -1148,7 +1169,7 @@ xinit(int cols, int rows)
 	xloadfonts(usedfont, 0);
 
 	/* colors */
-	xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
+	xw.cmap = XCreateColormap(xw.dpy, parent, xw.vis, None);
 	xloadcols();
 
 	/* adjust fixed window geometry */
@@ -1168,19 +1189,15 @@ xinit(int cols, int rows)
 		| ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
 	xw.attrs.colormap = xw.cmap;
 
-	if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0))))
-		parent = XRootWindow(xw.dpy, xw.scr);
 	xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t,
-			win.w, win.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
+			win.w, win.h, 0, xw.depth, InputOutput,
 			xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
 			| CWEventMask | CWColormap, &xw.attrs);
 
 	memset(&gcvalues, 0, sizeof(gcvalues));
 	gcvalues.graphics_exposures = False;
-	dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures,
-			&gcvalues);
-	xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h,
-			DefaultDepth(xw.dpy, xw.scr));
+	xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h, xw.depth);
+	dc.gc = XCreateGC(xw.dpy, xw.buf, GCGraphicsExposures, &gcvalues);
 	XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
 	XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, win.w, win.h);
 
@@ -2035,6 +2052,9 @@ main(int argc, char *argv[])
 	case 'a':
 		allowaltscreen = 0;
 		break;
+	case 'A':
+		opt_alpha = EARGF(usage());
+		break;
 	case 'c':
 		opt_class = EARGF(usage());
 		break;
-- 
2.34.1


From 292b70d7b9976e624931f8ec264a8875e29d2f3c Mon Sep 17 00:00:00 2001
From: Julius Huelsmann <juliusHuelsmann@gmail.com>
Date: Sat, 30 May 2020 01:13:35 +0200
Subject: [PATCH 2/7] [patch:focus] add initial patch

---
 config.def.h |  6 +++---
 st.h         |  2 +-
 x.c          | 33 +++++++++++++++++++--------------
 3 files changed, 23 insertions(+), 18 deletions(-)

diff --git a/config.def.h b/config.def.h
index 6bd6e8d..cdfbaf1 100644
--- a/config.def.h
+++ b/config.def.h
@@ -94,7 +94,7 @@ char *termname = "st-256color";
 unsigned int tabspaces = 8;
 
 /* bg opacity */
-float alpha = 0.8;
+float alpha = 0.8, alphaUnfocused = 0.6;
 
 /* Terminal colors (16 first used in escape sequence) */
 static const char *colorname[] = {
@@ -132,10 +132,10 @@ static const char *colorname[] = {
  * foreground, background, cursor, reverse cursor
  */
 unsigned int defaultfg = 7;
-unsigned int defaultbg = 258;
-//static 
+unsigned int defaultbg = 0;
 unsigned int defaultcs = 256;
 static unsigned int defaultrcs = 257;
+unsigned int bg = 17, bgUnfocused = 16;
 
 /*
  * Default shape of cursor
diff --git a/st.h b/st.h
index 9f91e2a..62e3486 100644
--- a/st.h
+++ b/st.h
@@ -124,4 +124,4 @@ extern unsigned int tabspaces;
 extern unsigned int defaultfg;
 extern unsigned int defaultbg;
 extern unsigned int defaultcs;
-extern float alpha;
+extern float alpha, alphaUnfocused;
diff --git a/x.c b/x.c
index 27e81d1..05d6e2e 100644
--- a/x.c
+++ b/x.c
@@ -255,6 +255,7 @@ static char *opt_name  = NULL;
 static char *opt_title = NULL;
 
 static uint buttons; /* bit field of pressed buttons */
+static int focused = 0;
 
 void
 clipcopy(const Arg *dummy)
@@ -792,35 +793,38 @@ xloadcolor(int i, const char *name, Color *ncolor)
 	return XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, ncolor);
 }
 
+void
+xloadalpha(void)
+{
+	float const usedAlpha = focused ? alpha : alphaUnfocused;
+	if (opt_alpha) alpha = strtof(opt_alpha, NULL);
+	dc.col[defaultbg].color.alpha = (unsigned short)(0xffff * usedAlpha);
+	dc.col[defaultbg].pixel &= 0x00FFFFFF;
+	dc.col[defaultbg].pixel |= (unsigned char)(0xff * usedAlpha) << 24;
+}
+
 void
 xloadcols(void)
 {
-	int i;
 	static int loaded;
 	Color *cp;
 
-	if (loaded) {
-		for (cp = dc.col; cp < &dc.col[dc.collen]; ++cp)
-			XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
-	} else {
-		dc.collen = MAX(LEN(colorname), 256);
-		dc.col = xmalloc(dc.collen * sizeof(Color));
+	if (!loaded) {
+		dc.collen = 1 + (defaultbg = MAX(LEN(colorname), 256));
+		dc.col = xmalloc((dc.collen) * sizeof(Color));
 	}
 
-	for (i = 0; i < dc.collen; i++)
+	for (int i = 0; i+1 < dc.collen; ++i)
 		if (!xloadcolor(i, NULL, &dc.col[i])) {
 			if (colorname[i])
 				die("could not allocate color '%s'\n", colorname[i]);
 			else
 				die("could not allocate color %d\n", i);
 		}
+	if (dc.collen) // cannot die, as the color is already loaded.
+		xloadcolor(focused ?bg :bgUnfocused, NULL, &dc.col[defaultbg]);
 
-	/* set alpha value of bg color */
-	if (opt_alpha)
-		alpha = strtof(opt_alpha, NULL);
-	dc.col[defaultbg].color.alpha = (unsigned short)(0xffff * alpha);
-	dc.col[defaultbg].pixel &= 0x00FFFFFF;
-	dc.col[defaultbg].pixel |= (unsigned char)(0xff * alpha) << 24;
+	xloadalpha();
 	loaded = 1;
 }
 
@@ -2106,6 +2110,7 @@ run:
 	XSetLocaleModifiers("");
 	cols = MAX(cols, 1);
 	rows = MAX(rows, 1);
+	defaultbg = MAX(LEN(colorname), 256);
 	tnew(cols, rows);
 	xinit(cols, rows);
 	xsetenv();
-- 
2.34.1


From 9bb6788325306d9ec2bead559dacd031287a2b8c Mon Sep 17 00:00:00 2001
From: Julius Huelsmann <juliusHuelsmann@gmail.com>
Date: Fri, 5 Jun 2020 20:48:06 +0200
Subject: [PATCH 3/7] [patch:focus]: fix

---
 x.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/x.c b/x.c
index 05d6e2e..97481ba 100644
--- a/x.c
+++ b/x.c
@@ -1798,12 +1798,22 @@ focus(XEvent *ev)
 		xseturgency(0);
 		if (IS_SET(MODE_FOCUS))
 			ttywrite("\033[I", 3, 0);
+		if (!focused) {
+			xloadcols();
+			redraw();
+		}
+		focused = 1;
 	} else {
 		if (xw.ime.xic)
 			XUnsetICFocus(xw.ime.xic);
 		win.mode &= ~MODE_FOCUSED;
 		if (IS_SET(MODE_FOCUS))
 			ttywrite("\033[O", 3, 0);
+		if (focused) {
+			xloadcols();
+			redraw();
+		}
+		focused = 0;
 	}
 }
 
-- 
2.34.1


From 62b6683ddf40aff222b59d5e074770d8d7336342 Mon Sep 17 00:00:00 2001
From: Julius Huelsmann <juliusHuelsmann@gmail.com>
Date: Sat, 6 Jun 2020 12:57:43 +0200
Subject: [PATCH 4/7] [patch:focus]: fix

---
 x.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/x.c b/x.c
index 97481ba..c4a4b00 100644
--- a/x.c
+++ b/x.c
@@ -1799,10 +1799,10 @@ focus(XEvent *ev)
 		if (IS_SET(MODE_FOCUS))
 			ttywrite("\033[I", 3, 0);
 		if (!focused) {
+			focused = 1;
 			xloadcols();
 			redraw();
 		}
-		focused = 1;
 	} else {
 		if (xw.ime.xic)
 			XUnsetICFocus(xw.ime.xic);
@@ -1810,10 +1810,10 @@ focus(XEvent *ev)
 		if (IS_SET(MODE_FOCUS))
 			ttywrite("\033[O", 3, 0);
 		if (focused) {
+			focused = 0;
 			xloadcols();
 			redraw();
 		}
-		focused = 0;
 	}
 }
 
-- 
2.34.1


From dc6c039192e887e70a2e6f07ac55c317e6b1c3be Mon Sep 17 00:00:00 2001
From: Julius Huelsmann <juliusHuelsmann@gmail.com>
Date: Thu, 23 Jul 2020 18:17:50 +0200
Subject: [PATCH 5/7] potential fix: exchange redraw with tfulldirt

---
 st.c | 1 -
 st.h | 1 +
 x.c  | 4 ++--
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/st.c b/st.c
index 62def59..8ee76a3 100644
--- a/st.c
+++ b/st.c
@@ -194,7 +194,6 @@ static void tsetscroll(int, int);
 static void tswapscreen(void);
 static void tsetmode(int, int, const int *, int);
 static int twrite(const char *, int, int);
-static void tfulldirt(void);
 static void tcontrolcode(uchar );
 static void tdectest(char );
 static void tdefutf8(char);
diff --git a/st.h b/st.h
index 62e3486..13be339 100644
--- a/st.h
+++ b/st.h
@@ -79,6 +79,7 @@ typedef union {
 
 void die(const char *, ...);
 void redraw(void);
+void tfulldirt(void);
 void draw(void);
 
 void printscreen(const Arg *);
diff --git a/x.c b/x.c
index c4a4b00..92c87b4 100644
--- a/x.c
+++ b/x.c
@@ -1801,7 +1801,7 @@ focus(XEvent *ev)
 		if (!focused) {
 			focused = 1;
 			xloadcols();
-			redraw();
+			tfulldirt();
 		}
 	} else {
 		if (xw.ime.xic)
@@ -1812,7 +1812,7 @@ focus(XEvent *ev)
 		if (focused) {
 			focused = 0;
 			xloadcols();
-			redraw();
+			tfulldirt();
 		}
 	}
 }
-- 
2.34.1


From 4da97936d57e3528ef7cf36c254c0985f6640132 Mon Sep 17 00:00:00 2001
From: Wim Stockman <wim@yasendfile.org>
Date: Sat, 4 Feb 2023 13:46:02 +0100
Subject: [PATCH 6/7] Performs upgrade avoid reloading all the colors again and
 again also avoids problem when colors are set dynamically when focus in and
 out that the colourpallette is not reset each time.

---
 x.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/x.c b/x.c
index 92c87b4..879bf0e 100644
--- a/x.c
+++ b/x.c
@@ -796,6 +796,7 @@ xloadcolor(int i, const char *name, Color *ncolor)
 void
 xloadalpha(void)
 {
+	xloadcolor(focused ?bg :bgUnfocused, NULL, &dc.col[defaultbg]);
 	float const usedAlpha = focused ? alpha : alphaUnfocused;
 	if (opt_alpha) alpha = strtof(opt_alpha, NULL);
 	dc.col[defaultbg].color.alpha = (unsigned short)(0xffff * usedAlpha);
@@ -821,8 +822,6 @@ xloadcols(void)
 			else
 				die("could not allocate color %d\n", i);
 		}
-	if (dc.collen) // cannot die, as the color is already loaded.
-		xloadcolor(focused ?bg :bgUnfocused, NULL, &dc.col[defaultbg]);
 
 	xloadalpha();
 	loaded = 1;
@@ -1800,7 +1799,7 @@ focus(XEvent *ev)
 			ttywrite("\033[I", 3, 0);
 		if (!focused) {
 			focused = 1;
-			xloadcols();
+			xloadalpha();
 			tfulldirt();
 		}
 	} else {
@@ -1811,7 +1810,7 @@ focus(XEvent *ev)
 			ttywrite("\033[O", 3, 0);
 		if (focused) {
 			focused = 0;
-			xloadcols();
+			xloadalpha();
 			tfulldirt();
 		}
 	}
-- 
2.34.1


From ec16984d95e0ff9ac33b2b3d30f292c3a327c473 Mon Sep 17 00:00:00 2001
From: Julius Huelsmann <juliusHuelsmann@gmail.com>
Date: Sat, 10 Jun 2023 13:16:11 +0200
Subject: [PATCH 7/7] changed default config a bit

---
 config.def.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/config.def.h b/config.def.h
index cdfbaf1..779178f 100644
--- a/config.def.h
+++ b/config.def.h
@@ -94,7 +94,7 @@ char *termname = "st-256color";
 unsigned int tabspaces = 8;
 
 /* bg opacity */
-float alpha = 0.8, alphaUnfocused = 0.6;
+float alpha = 0.93, alphaUnfocused = 0.6;
 
 /* Terminal colors (16 first used in escape sequence) */
 static const char *colorname[] = {
@@ -135,7 +135,7 @@ unsigned int defaultfg = 7;
 unsigned int defaultbg = 0;
 unsigned int defaultcs = 256;
 static unsigned int defaultrcs = 257;
-unsigned int bg = 17, bgUnfocused = 16;
+unsigned int bg = 0, bgUnfocused = 16;
 
 /*
  * Default shape of cursor
-- 
2.34.1