Import sources from 2011-03-30 iso image

1 files changed, 256 insertions, 0 deletions

diff --git a/sys/src/cmd/kbmap.c b/sys/src/cmd/kbmap.c
new file mode 100755
index 000000000..d5cc99387
--- /dev/null
+++ b/sys/src/cmd/kbmap.c
@@ -0,0 +1,256 @@
+#include <u.h>
+#include <libc.h>
+#include <draw.h>
+#include <event.h>
+
+typedef struct KbMap KbMap;
+struct KbMap {
+	char *name;
+	char *file;
+	Rectangle r;
+	int current;
+};
+
+KbMap *map;
+int nmap;
+Image *lightblue;
+Image *justblue;
+
+enum {
+	PAD = 3,
+	MARGIN = 5
+};
+
+char *dir = "/sys/lib/kbmap";
+
+void*
+erealloc(void *v, ulong n)
+{
+	v = realloc(v, n);
+	if(v == nil)
+		sysfatal("out of memory reallocating %lud", n);
+	return v;
+}
+
+void*
+emalloc(ulong n)
+{
+	void *v;
+
+	v = malloc(n);
+	if(v == nil)
+		sysfatal("out of memory allocating %lud", n);
+	memset(v, 0, n);
+	return v;
+}
+
+char*
+estrdup(char *s)
+{
+	int l;
+	char *t;
+
+	if (s == nil)
+		return nil;
+	l = strlen(s)+1;
+	t = emalloc(l);
+	memcpy(t, s, l);
+
+	return t;
+}
+
+void
+init(void)
+{
+	int i, fd, nr;
+	Dir *pd;
+	char buf[128];
+
+	if((fd = open(dir, OREAD)) < 0)
+		return;
+
+	nmap = nr = dirreadall(fd, &pd);
+	map = emalloc(nr * sizeof(KbMap));
+	for(i=0; i<nr; i++){
+		sprint(buf, "%s/%s", dir, pd[i].name);
+		map[i].file = estrdup(buf);
+		map[i].name = estrdup(pd[i].name);
+		map[i].current = 0;
+	}
+	free(pd);
+
+	close(fd);
+}
+
+void
+drawmap(int i)
+{
+	if(map[i].current)
+		draw(screen, map[i].r, justblue, nil, ZP);
+	else
+		draw(screen, map[i].r, lightblue, nil, ZP);
+
+	_string(screen, addpt(map[i].r.min, Pt(2,0)), display->black, ZP,
+		font, map[i].name, nil, strlen(map[i].name), 
+		map[i].r, nil, ZP, SoverD);
+	border(screen, map[i].r, 1, display->black, ZP);	
+}
+
+void
+geometry(void)
+{
+	int i, rows;
+	Rectangle r;
+
+	rows = (Dy(screen->r)-2*MARGIN+PAD)/(font->height+PAD);
+
+	r = Rect(0,0,(Dx(screen->r)-2*MARGIN), font->height);
+	for(i=0; i<nmap; i++)
+		map[i].r = rectaddpt(rectaddpt(r, Pt(MARGIN+(PAD+Dx(r))*(i/rows),
+					MARGIN+(PAD+Dy(r))*(i%rows))), screen->r.min);
+
+}
+
+void
+redraw(Image *screen)
+{
+	int i;
+
+	draw(screen, screen->r, lightblue, nil, ZP);
+	for(i=0; i<nmap; i++)
+		drawmap(i);
+	flushimage(display, 1);
+}
+
+void
+eresized(int new)
+{
+	if(new && getwindow(display, Refmesg) < 0)
+		fprint(2,"can't reattach to window");
+	geometry();
+	redraw(screen);
+}
+
+int
+writemap(char *file)
+{
+	int i, fd, ofd;
+	char buf[8192];
+
+	if((fd = open(file, OREAD)) < 0){
+		fprint(2, "cannot open %s: %r", file);
+		return -1;
+	}
+	if((ofd = open("/dev/kbmap", OWRITE)) < 0) {
+		fprint(2, "cannot open /dev/kbmap: %r");
+		close(fd);
+		return -1;
+	}
+	while((i = read(fd, buf, sizeof buf)) > 0)
+		if(write(ofd, buf, i) != i){
+			fprint(2, "writing /dev/kbmap: %r");
+			break;
+		}
+
+	close(fd);
+	close(ofd);
+	return 0;
+}
+
+void
+click(Mouse m)
+{
+	int i, j;
+	char buf[128];
+
+	if(m.buttons == 0 || (m.buttons & ~4))
+		return;
+
+	for(i=0; i<nmap; i++)
+		if(ptinrect(m.xy, map[i].r))
+			break;
+	if(i == nmap)
+		return;
+
+	do
+		m = emouse();
+	while(m.buttons == 4);
+
+	if(m.buttons != 0){
+		do
+			m = emouse();
+		while(m.buttons);
+		return;
+	}
+
+	for(j=0; j<nmap; j++)
+		if(ptinrect(m.xy, map[j].r))
+			break;
+	if(j != i)
+		return;
+
+	/* since maps are often just a delta of the distributed map... */
+	snprint(buf, sizeof buf, "%s/ascii", dir);
+	writemap(buf);
+	writemap(map[i].file);
+
+	/* clean the previous current map */
+	for(j=0; j<nmap; j++)
+		map[j].current = 0;
+
+	map[i].current = 1;
+
+	redraw(screen);
+}
+
+void
+usage(void)
+{
+	fprint(2, "usage: kbmap [file...]\n");
+	exits("usage");
+}
+
+void
+main(int argc, char **argv)
+{
+	Event e;
+	char *c;
+
+	if(argc > 1) {
+		argv++; argc--;
+		map = emalloc((argc)*sizeof(KbMap));
+		while(argc--) {
+			map[argc].file = estrdup(argv[argc]);
+			c = strrchr(map[argc].file, '/');
+			map[argc].name = (c == nil ? map[argc].file : c+1);
+			map[argc].current = 0;
+			nmap++;
+		}
+	} else 
+		init();
+
+	initdraw(0, 0, "kbmap");
+	lightblue = allocimagemix(display, DPalebluegreen, DWhite);
+	if(lightblue == nil)
+		sysfatal("allocimagemix: %r");
+	justblue = allocimagemix(display, DBlue, DWhite);
+	if(justblue == nil)
+		sysfatal("allocimagemix: %r");
+
+	eresized(0);
+	einit(Emouse|Ekeyboard);
+
+	for(;;){
+		switch(eread(Emouse|Ekeyboard, &e)){
+		case Ekeyboard:
+			if(e.kbdc==0x7F || e.kbdc=='q')
+				exits(0);
+			break;
+		case Emouse:
+			if(e.mouse.buttons)
+				click(e.mouse);
+			break;
+		}
+	}
+}
+