adding sourcecode.
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Enno Boland (tox)
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77aac73c1e
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317
tabbed.c
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317
tabbed.c
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/* See LICENSE file for copyright and license details.
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*
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* To understand tabbed, start reading main().
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*/
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#include <locale.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <X11/keysym.h>
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#include <X11/Xatom.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/Xproto.h>
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#include <X11/extensions/XTest.h>
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/* macros */
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#define MAX(a, b) ((a) > (b) ? (a) : (b))
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#define LENGTH(x) (sizeof x / sizeof x[0])
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#define CLEANMASK(mask) (mask & ~(numlockmask|LockMask))
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enum { ColFG, ColBG, ColLast }; /* color */
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typedef union {
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int i;
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unsigned int ui;
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float f;
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const void *v;
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} Arg;
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typedef struct {
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unsigned int mod;
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KeySym keysym;
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void (*func)(const Arg *);
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const Arg arg;
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} Key;
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typedef struct {
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int x, y, w, h;
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unsigned long norm[ColLast];
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unsigned long sel[ColLast];
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Drawable drawable;
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GC gc;
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struct {
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int ascent;
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int descent;
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int height;
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XFontSet set;
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XFontStruct *xfont;
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} font;
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} DC; /* draw context */
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typedef struct Client Client;
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struct Client {
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char name[256];
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struct Client *next;
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Window win;
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};
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/* function declarations */
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static void cleanup(void);
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static void configurenotify(XEvent *e);
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static void unmapnotify(XEvent *e);
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static void die(const char *errstr, ...);
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static void expose(XEvent *e);
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static unsigned long getcolor(const char *colstr);
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static void initfont(const char *fontstr);
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static void keypress(XEvent *e);
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static void move(const Arg *arg);
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static void newtab(const Arg *arg);
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static void rotate(const Arg *arg);
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static void run(void);
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static void setup(void);
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static int textnw(const char *text, unsigned int len);
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static void updatenumlockmask(void);
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/* variables */
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static int screen;
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static int wx, wy, ww, wh;
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static void (*handler[LASTEvent]) (XEvent *) = {
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[ConfigureNotify] = configurenotify,
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[UnmapNotify] = unmapnotify,
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[KeyPress] = keypress,
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[Expose] = expose,
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};
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static Display *dpy;
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static DC dc;
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static Window root, win;
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static Bool running = True;
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static unsigned int numlockmask = 0;
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/* configuration, allows nested code to access above variables */
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#define TABBED
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#include "config.h"
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void
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buttonrelease(XEvent *e) {
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//XButtonPressedEvent *ev = &e->xbutton;
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}
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void
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cleanup(void) {
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if(dc.font.set)
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XFreeFontSet(dpy, dc.font.set);
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else
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XFreeFont(dpy, dc.font.xfont);
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XFreePixmap(dpy, dc.drawable);
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XFreeGC(dpy, dc.gc);
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XDestroyWindow(dpy, win);
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XSync(dpy, False);
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XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
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}
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void
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configurenotify(XEvent *e) {
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XConfigureEvent *ev = &e->xconfigure;
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if(ev->window == win && (ev->width != ww || ev->height != wh)) {
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ww = ev->width;
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wh = ev->height;
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XFreePixmap(dpy, dc.drawable);
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dc.drawable = XCreatePixmap(dpy, root, ww, wh, DefaultDepth(dpy, screen));
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}
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}
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void
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die(const char *errstr, ...) {
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va_list ap;
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va_start(ap, errstr);
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vfprintf(stderr, errstr, ap);
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va_end(ap);
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exit(EXIT_FAILURE);
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}
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void
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unmapnotify(XEvent *e) {
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running = False;
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}
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void
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expose(XEvent *e) {
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/*XExposeEvent *ev = &e->xexpose;*/
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}
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unsigned long
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getcolor(const char *colstr) {
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Colormap cmap = DefaultColormap(dpy, screen);
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XColor color;
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if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
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die("error, cannot allocate color '%s'\n", colstr);
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return color.pixel;
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}
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void
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initfont(const char *fontstr) {
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char *def, **missing;
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int i, n;
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missing = NULL;
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if(dc.font.set)
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XFreeFontSet(dpy, dc.font.set);
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dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
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if(missing) {
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while(n--)
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fprintf(stderr, "tabbed: missing fontset: %s\n", missing[n]);
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XFreeStringList(missing);
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}
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if(dc.font.set) {
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XFontSetExtents *font_extents;
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XFontStruct **xfonts;
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char **font_names;
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dc.font.ascent = dc.font.descent = 0;
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font_extents = XExtentsOfFontSet(dc.font.set);
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n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
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for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
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dc.font.ascent = MAX(dc.font.ascent, (*xfonts)->ascent);
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dc.font.descent = MAX(dc.font.descent,(*xfonts)->descent);
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xfonts++;
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}
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}
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else {
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if(dc.font.xfont)
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XFreeFont(dpy, dc.font.xfont);
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dc.font.xfont = NULL;
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if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
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&& !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
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die("error, cannot load font: '%s'\n", fontstr);
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dc.font.ascent = dc.font.xfont->ascent;
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dc.font.descent = dc.font.xfont->descent;
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}
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dc.font.height = dc.font.ascent + dc.font.descent;
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}
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void
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keypress(XEvent *e) {
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unsigned int i;
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KeySym keysym;
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XKeyEvent *ev;
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ev = &e->xkey;
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keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
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for(i = 0; i < LENGTH(keys); i++)
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if(keysym == keys[i].keysym
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&& CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
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&& keys[i].func)
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keys[i].func(&(keys[i].arg));
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}
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void
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move(const Arg *arg) {
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}
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void
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newtab(const Arg *arg) {
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}
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void
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rotate(const Arg *arg) {
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}
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void
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run(void) {
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XEvent ev;
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/* main event loop, also reads status text from stdin */
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XSync(dpy, False);
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while(running) {
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XNextEvent(dpy, &ev);
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if(handler[ev.type])
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(handler[ev.type])(&ev); /* call handler */
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}
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}
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void
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setup(void) {
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XWMHints *wmh;
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/* init screen */
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screen = DefaultScreen(dpy);
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root = RootWindow(dpy, screen);
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initfont(font);
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/* init appearance */
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wx = 0;
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wy = 0;
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ww = 800;
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wh = 600;
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dc.norm[ColBG] = getcolor(normbgcolor);
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dc.norm[ColFG] = getcolor(normfgcolor);
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dc.sel[ColBG] = getcolor(selbgcolor);
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dc.sel[ColFG] = getcolor(selfgcolor);
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dc.drawable = XCreatePixmap(dpy, root, ww, wh, DefaultDepth(dpy, screen));
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dc.gc = XCreateGC(dpy, root, 0, 0);
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if(!dc.font.set)
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XSetFont(dpy, dc.gc, dc.font.xfont->fid);
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win = XCreateSimpleWindow(dpy, root, wx, wy, ww, wh, 0, dc.norm[ColFG], dc.norm[ColBG]);
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XSelectInput(dpy, win, StructureNotifyMask|PointerMotionMask|
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ButtonReleaseMask|ButtonPressMask|ExposureMask|
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LeaveWindowMask);
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wmh = XAllocWMHints();
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wmh->input = False;
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wmh->flags = InputHint;
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XSetWMHints(dpy, win, wmh);
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XFree(wmh);
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XMapRaised(dpy, win);
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}
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int
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textnw(const char *text, unsigned int len) {
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XRectangle r;
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if(dc.font.set) {
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XmbTextExtents(dc.font.set, text, len, NULL, &r);
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return r.width;
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}
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return XTextWidth(dc.font.xfont, text, len);
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}
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void
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updatenumlockmask(void) {
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unsigned int i, j;
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XModifierKeymap *modmap;
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numlockmask = 0;
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modmap = XGetModifierMapping(dpy);
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for(i = 0; i < 8; i++)
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for(j = 0; j < modmap->max_keypermod; j++)
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if(modmap->modifiermap[i * modmap->max_keypermod + j]
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== XKeysymToKeycode(dpy, XK_Num_Lock))
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numlockmask = (1 << i);
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XFreeModifiermap(modmap);
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}
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int
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main(int argc, char *argv[]) {
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if(argc == 2 && !strcmp("-v", argv[1]))
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die("tabbed-"VERSION", © 2006-2008 surf engineers, see LICENSE for details\n");
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else if(argc != 1)
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die("usage: tabbed [surf-options]\n");
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if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
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fprintf(stderr, "warning: no locale support\n");
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if(!(dpy = XOpenDisplay(0)))
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die("tabbed: cannot open display\n");
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setup();
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run();
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/*dummys*/
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cleanup();
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XCloseDisplay(dpy);
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return 0;
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textnw(surfexec[0], strlen(surfexec[0]));
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updatenumlockmask();
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}
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