shithub: vdir

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highlight rows when hovering

	add some visual cues by adding a mouse hover effect which
	changes the currently hovered line background color.

--- a/vdir.c

+++ b/vdir.c

@@ -60,6 +60,7 @@

 int plumbfd;

 int scrolling;

 int oldbuttons;

+int lastn;

 void

 showerrstr(void)

@@ -267,11 +268,19 @@

 }

 void

-drawdir(Point p, Dir d)

+drawdir(int n, int selected)

 {

 	char buf[255], *t;

+	Dir d;

 	Image *img;

+	Point p;

+	Rectangle r;

+	d = dirs[offset+n];

+	p = addpt(viewr.min, Pt(Toolpadding, Toolpadding));

+	p.y += n*lineh;

+	r = Rpt(p, addpt(p, Pt(Dx(viewr)-2*Toolpadding, lineh)));

+	draw(screen, r, selected?toolbg:viewbg, nil, ZP);

 	t = mdate(d);

 	snprint(buf, sizeof buf, "%12lld  %s", d.length, t);

 	free(t);

@@ -315,11 +324,8 @@

 	}else

 		scrposr = Rect(scrollr.min.x, scrollr.min.y, scrollr.max.x-1, scrollr.max.y);

 	draw(screen, scrposr, display->white, nil, ZP);

-	p = addpt(viewr.min, Pt(Toolpadding, Toolpadding));

 	for(i = 0; i<nlines && offset+i<ndirs; i++){

-		drawdir(p, dirs[offset+i]);

-		p.x = viewr.min.x+Toolpadding;

-		p.y += lineh;

+		drawdir(i, 0);

 	}

 	flushimage(display, 1);

 	unlockdisplay(display);

@@ -419,6 +425,19 @@

 	return p;

 }

+int

+indexat(Point p)

+{

+	int n;

+

+	if(!ptinrect(p, viewr))

+		return -1;

+	n = (p.y-viewr.min.y)/lineh;

+	if(offset+n>=ndirs)

+		return -1;

+	return n;

+}

+

 void

 evtmouse(Mouse m)

 {

@@ -488,6 +507,22 @@

 		scrollup(Slowscroll);

 	else if(m.buttons&16)

 		scrolldown(Slowscroll);

+	else{

+		n = indexat(m.xy);

+		if(n==-1){

+			if(lastn!=-1){

+				drawdir(lastn, 0);

+				lastn = -1;

+				flushimage(display, 1);

+			}

+		}else if(n!=lastn){

+			if(lastn!=-1)

+				drawdir(lastn, 0);

+			drawdir(n, 1);

+			lastn = n;

+			flushimage(display, 1);

+		}

+	}

 	oldbuttons = m.buttons;

 }

@@ -507,6 +542,7 @@

 	offset = 0;

 	scrolling = 0;

 	oldbuttons = 0;

+	lastn = -1;

 	getwd(path, sizeof path);	

 	if(argc==2)

 		snprint(path, sizeof path, abspath(path, argv[1]));

@@ -518,7 +554,6 @@

 	if(initdraw(nil, nil, "vdir")<0)

 		sysfatal("initdraw: %r");

 	unlockdisplay(display);

-	display->locking = 1;

 	mctl = initmouse(nil, screen);

 	if(mctl==nil)

 		sysfatal("initmouse: %r");