Added alpha patch v0.8.5

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 */
@@ -170,42 +173,6 @@ static unsigned int defaultattr = 11;
  */
 static uint forcemousemod = ShiftMask;
 
-/*
- * Xresources preferences to load at startup
- */
-ResourcePref resources[] = {
-		{ "font",         STRING,  &font },
-		{ "color0",       STRING,  &colorname[0] },
-		{ "color1",       STRING,  &colorname[1] },
-		{ "color2",       STRING,  &colorname[2] },
-		{ "color3",       STRING,  &colorname[3] },
-		{ "color4",       STRING,  &colorname[4] },
-		{ "color5",       STRING,  &colorname[5] },
-		{ "color6",       STRING,  &colorname[6] },
-		{ "color7",       STRING,  &colorname[7] },
-		{ "color8",       STRING,  &colorname[8] },
-		{ "color9",       STRING,  &colorname[9] },
-		{ "color10",      STRING,  &colorname[10] },
-		{ "color11",      STRING,  &colorname[11] },
-		{ "color12",      STRING,  &colorname[12] },
-		{ "color13",      STRING,  &colorname[13] },
-		{ "color14",      STRING,  &colorname[14] },
-		{ "color15",      STRING,  &colorname[15] },
-		{ "background",   STRING,  &colorname[256] },
-		{ "foreground",   STRING,  &colorname[257] },
-		{ "cursorColor",  STRING,  &colorname[258] },
-		{ "termname",     STRING,  &termname },
-		{ "shell",        STRING,  &shell },
-		{ "minlatency",   INTEGER, &minlatency },
-		{ "maxlatency",   INTEGER, &maxlatency },
-		{ "blinktimeout", INTEGER, &blinktimeout },
-		{ "bellvolume",   INTEGER, &bellvolume },
-		{ "tabspaces",    INTEGER, &tabspaces },
-		{ "borderpx",     INTEGER, &borderpx },
-		{ "cwscale",      FLOAT,   &cwscale },
-		{ "chscale",      FLOAT,   &chscale },
-};
-
 /*
  * Internal mouse shortcuts.
  * Beware that overloading Button1 will disable the selection.

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`
 

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;

x.c

@@ -14,7 +14,6 @@
 #include <X11/keysym.h>
 #include <X11/Xft/Xft.h>
 #include <X11/XKBlib.h>
-#include <X11/Xresource.h>
 
 char *argv0;
 #include "arg.h"
@@ -46,19 +45,6 @@ typedef struct {
 	signed char appcursor; /* application cursor */
 } Key;
 
-/* Xresources preferences */
-enum resource_type {
-	STRING = 0,
-	INTEGER = 1,
-	FLOAT = 2
-};
-
-typedef struct {
-	char *name;
-	enum resource_type type;
-	void *dst;
-} ResourcePref;
-
 /* X modifiers */
 #define XK_ANY_MOD    UINT_MAX
 #define XK_NO_MOD     0
@@ -119,6 +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;
@@ -257,6 +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;
@@ -766,7 +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);
 
@@ -826,6 +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;
 }
 
@@ -873,8 +868,8 @@ xclear(int x1, int y1, int x2, int y2)
 void
 xhints(void)
 {
-	XClassHint class = {opt_name ? opt_name : "st",
-	                    opt_class ? opt_class : "St"};
+	XClassHint class = {opt_name ? opt_name : termname,
+	                    opt_class ? opt_class : termname};
 	XWMHints wm = {.flags = InputHint, .input = 1};
 	XSizeHints *sizeh;
 
@@ -1148,9 +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())
@@ -1160,7 +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 */
@@ -1180,19 +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);
 
@@ -2026,59 +2031,6 @@ run(void)
 	}
 }
 
-int
-resource_load(XrmDatabase db, char *name, enum resource_type rtype, void *dst)
-{
-	char **sdst = dst;
-	int *idst = dst;
-	float *fdst = dst;
-
-	char fullname[256];
-	char fullclass[256];
-	char *type;
-	XrmValue ret;
-
-	snprintf(fullname, sizeof(fullname), "%s.%s",
-			opt_name ? opt_name : "st", name);
-	snprintf(fullclass, sizeof(fullclass), "%s.%s",
-			opt_class ? opt_class : "St", name);
-	fullname[sizeof(fullname) - 1] = fullclass[sizeof(fullclass) - 1] = '\0';
-
-	XrmGetResource(db, fullname, fullclass, &type, &ret);
-	if (ret.addr == NULL || strncmp("String", type, 64))
-		return 1;
-
-	switch (rtype) {
-	case STRING:
-		*sdst = ret.addr;
-		break;
-	case INTEGER:
-		*idst = strtoul(ret.addr, NULL, 10);
-		break;
-	case FLOAT:
-		*fdst = strtof(ret.addr, NULL);
-		break;
-	}
-	return 0;
-}
-
-void
-config_init(void)
-{
-	char *resm;
-	XrmDatabase db;
-	ResourcePref *p;
-
-	XrmInitialize();
-	resm = XResourceManagerString(xw.dpy);
-	if (!resm)
-		return;
-
-	db = XrmGetStringDatabase(resm);
-	for (p = resources; p < resources + LEN(resources); p++)
-		resource_load(db, p->name, p->type, p->dst);
-}
-
 void
 usage(void)
 {
@@ -2103,6 +2055,9 @@ main(int argc, char *argv[])
 	case 'a':
 		allowaltscreen = 0;
 		break;
+	case 'A':
+		opt_alpha = EARGF(usage());
+		break;
 	case 'c':
 		opt_class = EARGF(usage());
 		break;
@@ -2152,11 +2107,6 @@ run:
 
 	setlocale(LC_CTYPE, "");
 	XSetLocaleModifiers("");
-
-	if(!(xw.dpy = XOpenDisplay(NULL)))
-		die("Can't open display\n");
-
-	config_init();
 	cols = MAX(cols, 1);
 	rows = MAX(rows, 1);
 	tnew(cols, rows);