Palettes

Based on patch for version 0.8.1
https://st.suckless.org/patches/palettes/

config.def.h

@@ -87,45 +87,30 @@ 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 */
-	"black",
-	"red3",
-	"green3",
-	"yellow3",
-	"blue2",
-	"magenta3",
-	"cyan3",
-	"gray90",
-
-	/* 8 bright colors */
-	"gray50",
-	"red",
-	"green",
-	"yellow",
-	"#5c5cff",
-	"magenta",
-	"cyan",
-	"white",
-
-	[255] = 0,
-
-	/* more colors can be added after 255 to use with DefaultXX */
-	"#cccccc",
-	"#555555",
+/* Terminal colors (16 used in escape sequence) */
+static const char *palettes[][16] = {
+    {"black", "red3", "green3", "yellow3", "blue2", "magenta3", "cyan3", "gray90",
+    "gray50", "red", "green", "yellow", "#5c5cff", "magenta", "cyan", "white"},
+    {"#223", "#900", "#080", "#fe7", "#35e", "#fc5", "#18e", "#aaa",
+    "#666", "#f25", "#0b0", "#ff6", "#46f", "#d6a", "#6bf", "#ddd"},
+    {"#eaeaea", "#b7141f", "#457b24", "#fc7b08", "#134eb2", "#560088", "#0e717c", "#777777",
+    "#424242", "#e83b3f", "#7aba3a", "#fd8e09", "#54a4f3", "#aa4dbc", "#26bbd1", "#aaaaaa"},
+    {"#20242d", "#b04b57", "#87b379", "#e5c179", "#7d8fa4", "#a47996", "#85a7a5", "#b3b8c3",
+    "#000000", "#b04b57", "#87b379", "#e5c179", "#7d8fa4", "#a47996", "#85a7a5", "#ffffff"},
 	"black",
 };
 
+static const char **colorname;
+
 
 /*
  * Default colors (colorname index)
  * foreground, background, cursor, reverse cursor
  */
-unsigned int defaultfg = 7;
+unsigned int defaultfg = 5;
 unsigned int defaultbg = 258;
-static unsigned int defaultcs = 256;
-static unsigned int defaultrcs = 257;
+static unsigned int defaultcs = 5;
+static unsigned int defaultrcs = 5;
 
 /*
  * Default shape of cursor
@@ -194,6 +179,15 @@ static Shortcut shortcuts[] = {
 	{ ShiftMask,            XK_Page_Down,   kscrolldown,    {.i = -1} },
 	{ ShiftMask,            XK_Insert,      selpaste,       {.i =  0} },
 	{ TERMMOD,              XK_Num_Lock,    numlock,        {.i =  0} },
+    { MODKEY|ShiftMask,     XK_F1,          setpalette,     {.i =  0} },
+    { MODKEY|ShiftMask,     XK_F2,          setpalette,     {.i =  1} },
+    { MODKEY|ShiftMask,     XK_F3,          setpalette,     {.i =  2} },
+    { MODKEY|ShiftMask,     XK_F4,          setpalette,     {.i =  3} },
+    { MODKEY|ShiftMask,     XK_F5,          setpalette,     {.i =  4} },
+    { MODKEY|ShiftMask,     XK_F6,          setpalette,     {.i =  5} },
+    { MODKEY|ShiftMask,     XK_F7,          setpalette,     {.i =  6} },
+    { MODKEY|ShiftMask,     XK_F8,          setpalette,     {.i =  7} },
+    { MODKEY|ShiftMask,     XK_F9,          setpalette,     {.i =  8} },
 };
 
 /*

config.h

@@ -87,44 +87,28 @@ unsigned int tabspaces = 8;
 /* bg opacity */
 float alpha = 0.7;
 
-/* Terminal colors (16 first used in escape sequence) */
-static const char *colorname[] = {
-	/* 8 normal colors */
-	"black",
-	"red3",
-	"green3",
-	"yellow3",
-	"blue2",
-	"magenta3",
-	"cyan3",
-	"gray90",
-
-	/* 8 bright colors */
-	"gray50",
-	"red",
-	"green",
-	"yellow",
-	"#5c5cff",
-	"magenta",
-	"cyan",
-	"white",
-
-	[255] = 0,
-
-	/* more colors can be added after 255 to use with DefaultXX */
-	"#cccccc",
-	"#555555",
+/* Terminal colors (16 used in escape sequence) */
+static const char *palettes[][16] = {
+        {"black", "red3", "green3", "yellow3", "blue2", "magenta3", "cyan3", "gray90",
+         "gray50", "red", "green", "yellow", "#5c5cff", "magenta", "cyan", "white"},
+        {"#223", "#900", "#080", "#fe7", "#35e", "#fc5", "#18e", "#aaa",
+         "#666", "#f25", "#0b0", "#ff6", "#46f", "#d6a", "#6bf", "#ddd"},
+        {"#eaeaea", "#b7141f", "#457b24", "#fc7b08", "#134eb2", "#560088", "#0e717c", "#777777",
+         "#424242", "#e83b3f", "#7aba3a", "#fd8e09", "#54a4f3", "#aa4dbc", "#26bbd1", "#aaaaaa"},
+        {"#20242d", "#b04b57", "#87b379", "#e5c179", "#7d8fa4", "#a47996", "#85a7a5", "#b3b8c3",
+         "#000000", "#b04b57", "#87b379", "#e5c179", "#7d8fa4", "#a47996", "#85a7a5", "#ffffff"},
 };
 
+static const char **colorname;
 
 /*
  * Default colors (colorname index)
  * foreground, background, cursor, reverse cursor
  */
-unsigned int defaultfg = 7;
+unsigned int defaultfg = 1;
 unsigned int defaultbg = 0;
-static unsigned int defaultcs = 256;
-static unsigned int defaultrcs = 257;
+static unsigned int defaultcs = 1;
+static unsigned int defaultrcs = 1;
 
 /*
  * Default shape of cursor
@@ -195,6 +179,15 @@ static Shortcut shortcuts[] = {
         {ShiftMask,   XK_Page_Down, kscrolldown,   {.i = -1}},
         {ShiftMask,   XK_Insert,    selpaste,      {.i =  0}},
         {TERMMOD,     XK_Num_Lock,  numlock,       {.i =  0}},
+        {MODKEY | ShiftMask, XK_F1, setpalette, {.i =  0}},
+        {MODKEY | ShiftMask, XK_F2, setpalette, {.i =  1}},
+        {MODKEY | ShiftMask, XK_F3, setpalette, {.i =  2}},
+        {MODKEY | ShiftMask, XK_F4, setpalette, {.i =  3}},
+        {MODKEY | ShiftMask, XK_F5, setpalette, {.i =  4}},
+        {MODKEY | ShiftMask, XK_F6, setpalette, {.i =  5}},
+        {MODKEY | ShiftMask, XK_F7, setpalette, {.i =  6}},
+        {MODKEY | ShiftMask, XK_F8, setpalette, {.i =  7}},
+        {MODKEY | ShiftMask, XK_F9, setpalette, {.i =  8}},
 };
 
 /*

config.mk

@@ -22,7 +22,7 @@ LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft -lXrender\
 
 # flags
 STCPPFLAGS = -DVERSION=\"$(VERSION)\" -D_XOPEN_SOURCE=600
-STCFLAGS = $(INCS) $(STCPPFLAGS) $(CPPFLAGS) $(CFLAGS)
+STCFLAGS = $(INCS) $(STCPPFLAGS) $(CPPFLAGS) $(CFLAGS) -ggdb
 STLDFLAGS = $(LIBS) $(LDFLAGS)
 
 # OpenBSD:

x.c

@@ -58,6 +58,7 @@ static void selpaste(const Arg *);
 static void zoom(const Arg *);
 static void zoomabs(const Arg *);
 static void zoomreset(const Arg *);
+static void setpalette(const Arg *);
 static void ttysend(const Arg *);
 
 /* config.h for applying patches and the configuration. */
@@ -753,24 +754,7 @@ sixd_to_16bit(int x)
 int
 xloadcolor(int i, const char *name, Color *ncolor)
 {
-	XRenderColor color = { .alpha = 0xffff };
-
-	if (!name) {
-		if (BETWEEN(i, 16, 255)) { /* 256 color */
-			if (i < 6*6*6+16) { /* same colors as xterm */
-				color.red   = sixd_to_16bit( ((i-16)/36)%6 );
-				color.green = sixd_to_16bit( ((i-16)/6) %6 );
-				color.blue  = sixd_to_16bit( ((i-16)/1) %6 );
-			} else { /* greyscale */
-				color.red = 0x0808 + 0x0a0a * (i - (6*6*6+16));
-				color.green = color.blue = color.red;
-			}
-			return XftColorAllocValue(xw.dpy, xw.vis,
-			                          xw.cmap, &color, ncolor);
-		} else
-			name = colorname[i];
-	}
-
+	if (!name)  name = colorname[i];
 	return XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, ncolor);
 }
 
@@ -781,11 +765,11 @@ xloadcols(void)
 	static int loaded;
 	Color *cp;
 
+    dc.collen = 16;
 	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));
 	}
 
@@ -2000,6 +1984,14 @@ usage(void)
 	    " [stty_args ...]\n", argv0, argv0);
 }
 
+void setpalette(const Arg *arg) {
+    if ( arg->i < LEN(palettes) )   {
+        colorname = palettes[arg->i];
+        xloadcols();
+        cresize(win.w, win.h);
+    }
+}
+
 int
 main(int argc, char *argv[])
 {
@@ -2055,6 +2047,8 @@ main(int argc, char *argv[])
 	} ARGEND;
 
 run:
+    colorname = palettes[0];
+
 	if (argc > 0) /* eat all remaining arguments */
 		opt_cmd = argv;