shithub: spread

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adds click to edit (RMB), don't save empty cells

--- a/engine.c

+++ b/engine.c

@@ -397,6 +397,8 @@

 		Bprint(b, "%s=%s\n", ptoa(c->p), c->value);

 		break;

 	case STRING:

+		if (!c->value || !c->value[0])

+			break;

 		Bprint(b, "%s;%s\n", ptoa(c->p), c->value);

 		break;

 	}

--- a/spread.c

+++ b/spread.c

@@ -340,6 +340,39 @@

 	return 0;

 }

+P clicktop(Point xy)

+{

+	P p;

+	p.x = 0;

+	p.y = 0;

+	

+	if (!ptinrect(xy, dstate.r)) {

+		return p;

+	}

+	

+	xy = subpt(xy, dstate.r.min);

+	

+	p.x = xy.x / dstate.dcolwidth;

+	p.y = xy.y / font->height;

+	

+	p.x += dstate.firstcell.x;

+	p.y += dstate.firstcell.y;

+	return p;

+}

+

+static void

+processclick(Event ev)

+{

+	P cell;

+	

+	if (ev.mouse.buttons & 4) {

+		/* right click to edit */

+		cell = clicktop(ev.mouse.xy);

+		edit(cell);

+		return;

+	}

+}

+

 void

 main(int argc, char **argv)

 {

@@ -391,6 +424,7 @@

 		switch (e) {

 		case Emouse:

+			processclick(ev);

 			break;

 		case Ekeyboard:

 			if (processkbd(ev))