tabbed

commit aa5f91e0d54333e4da247528f5eacb721710d16d
parent 77aac73c1e88d840dc9a8b07f2c02b5cb8553835
Author: Enno Boland (tox) <tox@s01.de>
Date:   Mon,  7 Sep 2009 13:32:58 +0200

adding sourcecode.
Diffstat:
A
tabbed.c
 | 
317
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

1 file changed, 317 insertions(+), 0 deletions(-)
diff --git a/tabbed.c b/tabbed.c
@@ -0,0 +1,317 @@
+/* See LICENSE file for copyright and license details.
+ *
+ * To understand tabbed, start reading main().
+ */
+#include <locale.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <X11/keysym.h>
+#include <X11/Xatom.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/Xproto.h>
+#include <X11/extensions/XTest.h>
+
+/* macros */
+#define MAX(a, b)       ((a) > (b) ? (a) : (b))
+#define LENGTH(x)       (sizeof x / sizeof x[0])
+#define CLEANMASK(mask)         (mask & ~(numlockmask|LockMask))
+
+enum { ColFG, ColBG, ColLast };              /* color */
+
+typedef union {
+	int i;
+	unsigned int ui;
+	float f;
+	const void *v;
+} Arg;
+
+typedef struct {
+	unsigned int mod;
+	KeySym keysym;
+	void (*func)(const Arg *);
+	const Arg arg;
+} Key;
+
+typedef struct {
+	int x, y, w, h;
+	unsigned long norm[ColLast];
+	unsigned long sel[ColLast];
+	Drawable drawable;
+	GC gc;
+	struct {
+		int ascent;
+		int descent;
+		int height;
+		XFontSet set;
+		XFontStruct *xfont;
+	} font;
+} DC; /* draw context */
+
+typedef struct Client Client;
+struct Client {
+	char name[256];
+	struct Client *next;
+	Window win;
+};
+
+/* function declarations */
+static void cleanup(void);
+static void configurenotify(XEvent *e);
+static void unmapnotify(XEvent *e);
+static void die(const char *errstr, ...);
+static void expose(XEvent *e);
+static unsigned long getcolor(const char *colstr);
+static void initfont(const char *fontstr);
+static void keypress(XEvent *e);
+static void move(const Arg *arg);
+static void newtab(const Arg *arg);
+static void rotate(const Arg *arg);
+static void run(void);
+static void setup(void);
+static int textnw(const char *text, unsigned int len);
+static void updatenumlockmask(void);
+
+/* variables */
+static int screen;
+static int wx, wy, ww, wh;
+static void (*handler[LASTEvent]) (XEvent *) = {
+	[ConfigureNotify] = configurenotify,
+	[UnmapNotify] = unmapnotify,
+	[KeyPress] = keypress,
+	[Expose] = expose,
+};
+static Display *dpy;
+static DC dc;
+static Window root, win;
+static Bool running = True;
+static unsigned int numlockmask = 0;
+/* configuration, allows nested code to access above variables */
+#define TABBED
+#include "config.h"
+
+void
+buttonrelease(XEvent *e) {
+	//XButtonPressedEvent *ev = &e->xbutton;
+}
+
+void
+cleanup(void) {
+	if(dc.font.set)
+		XFreeFontSet(dpy, dc.font.set);
+	else
+		XFreeFont(dpy, dc.font.xfont);
+	XFreePixmap(dpy, dc.drawable);
+	XFreeGC(dpy, dc.gc);
+	XDestroyWindow(dpy, win);
+	XSync(dpy, False);
+	XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
+}
+
+void
+configurenotify(XEvent *e) {
+	XConfigureEvent *ev = &e->xconfigure;
+
+	if(ev->window == win && (ev->width != ww || ev->height != wh)) {
+		ww = ev->width;
+		wh = ev->height;
+		XFreePixmap(dpy, dc.drawable);
+		dc.drawable = XCreatePixmap(dpy, root, ww, wh, DefaultDepth(dpy, screen));
+	}
+}
+
+void
+die(const char *errstr, ...) {
+	va_list ap;
+
+	va_start(ap, errstr);
+	vfprintf(stderr, errstr, ap);
+	va_end(ap);
+	exit(EXIT_FAILURE);
+}
+
+void
+unmapnotify(XEvent *e) {
+	running = False;
+}
+
+void
+expose(XEvent *e) {
+	/*XExposeEvent *ev = &e->xexpose;*/
+}
+
+unsigned long
+getcolor(const char *colstr) {
+	Colormap cmap = DefaultColormap(dpy, screen);
+	XColor color;
+
+	if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
+		die("error, cannot allocate color '%s'\n", colstr);
+	return color.pixel;
+}
+
+void
+initfont(const char *fontstr) {
+	char *def, **missing;
+	int i, n;
+
+	missing = NULL;
+	if(dc.font.set)
+		XFreeFontSet(dpy, dc.font.set);
+	dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
+	if(missing) {
+		while(n--)
+			fprintf(stderr, "tabbed: missing fontset: %s\n", missing[n]);
+		XFreeStringList(missing);
+	}
+	if(dc.font.set) {
+		XFontSetExtents *font_extents;
+		XFontStruct **xfonts;
+		char **font_names;
+		dc.font.ascent = dc.font.descent = 0;
+		font_extents = XExtentsOfFontSet(dc.font.set);
+		n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
+		for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
+			dc.font.ascent = MAX(dc.font.ascent, (*xfonts)->ascent);
+			dc.font.descent = MAX(dc.font.descent,(*xfonts)->descent);
+			xfonts++;
+		}
+	}
+	else {
+		if(dc.font.xfont)
+			XFreeFont(dpy, dc.font.xfont);
+		dc.font.xfont = NULL;
+		if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
+		&& !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
+			die("error, cannot load font: '%s'\n", fontstr);
+		dc.font.ascent = dc.font.xfont->ascent;
+		dc.font.descent = dc.font.xfont->descent;
+	}
+	dc.font.height = dc.font.ascent + dc.font.descent;
+}
+
+void
+keypress(XEvent *e) {
+	unsigned int i;
+	KeySym keysym;
+	XKeyEvent *ev;
+
+	ev = &e->xkey;
+	keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
+	for(i = 0; i < LENGTH(keys); i++)
+		if(keysym == keys[i].keysym
+		&& CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
+		&& keys[i].func)
+			keys[i].func(&(keys[i].arg));
+}
+
+void
+move(const Arg *arg) {
+
+}
+
+void
+newtab(const Arg *arg) {
+
+}
+
+void
+rotate(const Arg *arg) {
+
+}
+
+void
+run(void) {
+	XEvent ev;
+
+	/* main event loop, also reads status text from stdin */
+	XSync(dpy, False);
+	while(running) {
+		XNextEvent(dpy, &ev);
+		if(handler[ev.type])
+			(handler[ev.type])(&ev); /* call handler */
+	}
+}
+
+void
+setup(void) {
+	XWMHints *wmh;
+
+	/* init screen */
+	screen = DefaultScreen(dpy);
+	root = RootWindow(dpy, screen);
+	initfont(font);
+
+	/* init appearance */
+	wx = 0;
+	wy = 0;
+	ww = 800;
+	wh = 600;
+	dc.norm[ColBG] = getcolor(normbgcolor);
+	dc.norm[ColFG] = getcolor(normfgcolor);
+	dc.sel[ColBG] = getcolor(selbgcolor);
+	dc.sel[ColFG] = getcolor(selfgcolor);
+	dc.drawable = XCreatePixmap(dpy, root, ww, wh, DefaultDepth(dpy, screen));
+	dc.gc = XCreateGC(dpy, root, 0, 0);
+	if(!dc.font.set)
+		XSetFont(dpy, dc.gc, dc.font.xfont->fid);
+
+	win = XCreateSimpleWindow(dpy, root, wx, wy, ww, wh, 0, dc.norm[ColFG], dc.norm[ColBG]);
+	XSelectInput(dpy, win, StructureNotifyMask|PointerMotionMask|
+			ButtonReleaseMask|ButtonPressMask|ExposureMask|
+			LeaveWindowMask);
+	wmh = XAllocWMHints();
+	wmh->input = False;
+	wmh->flags = InputHint;
+	XSetWMHints(dpy, win, wmh);
+	XFree(wmh);
+	XMapRaised(dpy, win);
+}
+
+int
+textnw(const char *text, unsigned int len) {
+	XRectangle r;
+
+	if(dc.font.set) {
+		XmbTextExtents(dc.font.set, text, len, NULL, &r);
+		return r.width;
+	}
+	return XTextWidth(dc.font.xfont, text, len);
+}
+
+void
+updatenumlockmask(void) {
+	unsigned int i, j;
+	XModifierKeymap *modmap;
+
+	numlockmask = 0;
+	modmap = XGetModifierMapping(dpy);
+	for(i = 0; i < 8; i++)
+		for(j = 0; j < modmap->max_keypermod; j++)
+			if(modmap->modifiermap[i * modmap->max_keypermod + j]
+			   == XKeysymToKeycode(dpy, XK_Num_Lock))
+				numlockmask = (1 << i);
+	XFreeModifiermap(modmap);
+}
+
+int
+main(int argc, char *argv[]) {
+	if(argc == 2 && !strcmp("-v", argv[1]))
+		die("tabbed-"VERSION", © 2006-2008 surf engineers, see LICENSE for details\n");
+	else if(argc != 1)
+		die("usage: tabbed [surf-options]\n");
+	if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
+		fprintf(stderr, "warning: no locale support\n");
+	if(!(dpy = XOpenDisplay(0)))
+		die("tabbed: cannot open display\n");
+	setup();
+	run();
+	/*dummys*/
+	cleanup();
+	XCloseDisplay(dpy);
+	return 0;
+	textnw(surfexec[0], strlen(surfexec[0]));
+	updatenumlockmask();
+}