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Made some progress on the option drawing program

diff: cannot open b/src/ime//null: file does not exist: 'b/src/ime//null'

--- /dev/null

+++ b/src/ime/options

@@ -1,0 +1,4 @@

+Option 1

+Option 2

+Option 3

+Option 4

--- a/src/optshow.c

+++ b/src/optshow.c

@@ -21,7 +21,7 @@

 void clockproc(void*);

 void optdraw(Image*, Image*, Point, Rune*);

 void readinproc(void*);

-void relocate(Rune*);

+void resize(Point);

 void usage(void);

 enum

@@ -30,7 +30,6 @@

 };

 Channel *timer;

-int top = 0;

 Biobuf bin, bout;

@@ -57,16 +56,18 @@

 	textco = 0x000000FF;

 	ARGBEGIN{

-	case 't':

-		top = 1;

-		break;

-	case 'b':

-		top = 0;

-		break;

 	case 's':

 		Binit(&bin, 0, OREAD);

 		Binit(&bout, 1, OWRITE);

 		break;

+	case 'f':

+		if (open(argv[1], OREAD) == -1){

+			sysfatal("File \"%s\" does not exist", argv[1]);

+		}

+		bin = *Bopen(argv[1], OREAD);

+		//Binit(&bin, 0, OREAD);

+		Binit(&bout, 1, OWRITE);

+		break;

 	default:

 		usage();

 		exits("usage");

@@ -73,7 +74,7 @@

 	}ARGEND;

 	if(initdraw(nil, nil, argv0) < 0)

-		sysfatal("%s: %r", argv0);

+		sysfatal("%r");

 	bg = allocimage(display, Rect(0,0,1,1), RGB24, 1, bgco);

 	text = allocimage(display, Rect(0,0,screen->r.max.x,font->height), RGB24, 0, textco);

 	if(bg == nil || text == nil)

@@ -85,7 +86,7 @@

 	buf = L"No input recieved";

 	optdraw(bg, text, textpos, buf);

-	if((mctl = initmouse(nil, screen)) == nil)

+	if((mctl = initmouse(nil, display->image)) == nil)

 		sysfatal("%s: %r", argv0);

 	enum{INPUT, MOUSE, CLOCK, NONE};

@@ -108,11 +109,9 @@

 	while(disp){

 		switch(alt(alts)){

 		case CLOCK:

-			relocate(buf);

 			optdraw(bg, text, textpos, buf);

 			break;

 		case INPUT:

-			relocate(buf);

 			if(!(recv(alts[0].c, input))){

 				sysfatal("%s: Unsuccessful retrieval of input\n%r", argv0);

 			}

@@ -120,7 +119,6 @@

 			optdraw(bg, text, textpos, buf);

 			break;

 		case MOUSE:

-			relocate(buf);

 			if(getwindow(display, Refnone) < 0)

 				sysfatal("%s: %r", argv0);

 			textpos.x = screen->r.min.x;

@@ -157,9 +155,45 @@

 void

 optdraw(Image *bg, Image *text, Point textpos, Rune *opt)

 {

+	Point p;

+	int ht, textht, row, col, textwid;

+	ulong textco;

+	Rune items[5][64];

+	

+	textco = text->chan;

+	

 	draw(screen, screen->r, bg, nil, ZP);

-	runestring(screen, textpos, text, ZP, font, opt);

+	freeimage(text);

+	

+	ht = 0;

+	col = 0;

+	for(int i=col; opt[i] != 0; i++){

+		if (opt[i] == '\n'){

+			//items[ht][col] = 0;

+			items[ht+1][0] = 0;

+			ht ++;

+			col = 0;

+		}else{

+			items[ht][col] = opt[i];

+			items[ht][col+1] = 0;

+			col++;

+		}

+	}

+	ht ++;

+	textht = ht * font->height;

+	text = allocimage(display, Rect(0,0,screen->r.max.x,textht), RGB24, 0, textco);

+	

+	row = 0;

+	textwid = 0;

+	while(ht - row > 0){

+		p = runestring(screen, textpos, text, ZP, font, items[row]);

+		if (p.x > textwid)

+			textwid = p.x;

+		row ++;

+		textpos.y = textpos.y + font->height + 2;

+	}

 	flushimage(display, Refnone);

+	resize(Pt(textwid + 20, screen->r.min.y + textht));

 }

 void

@@ -184,29 +218,23 @@

 }

 void

-relocate(Rune *buf)

+resize(Point p)

 {

 	Point min, max;

-	int wp, wid, ht, strlen;

+	int wp;

-	wid = 0;

+	if ((p.x < screen->r.min.x) || (p.y < screen->r.min.y))

+		sysfatal("%s: resize given invalid dimensions\n%r", argv0);

-	for(strlen=0; buf[strlen] != 0; strlen++)

-	if((wid = strlen * (font->width + 4)) < 100)

-		wid = 100;

-	

-	ht = font->height * 2;

-	

 	if((wp = open("/dev/wctl", ORDWR)) < 0)

 		sysfatal("%s: Couldn't open wctl\n %r", argv0);

-	if(top){

-		min = Pt(0,0);

-		max = Pt(wid, ht);

-	}else{

-		min = Pt(0, display->image->r.max.y - ht);

-		max = Pt(wid, display->image->r.max.y);

-	}

+	min = screen->r.min;

+	min = Pt(min.x - 4, min.y - 4);

+	max = p;

+	

+	if((max.x - min.x) < 100)

+		max.x = min.x + 100;

 	fprint(wp, "resize -r %d %d %d %d", min.x, min.y, max.x, max.y);

 	close(wp);