gim: draw the text of the edge

gim/line.go

@@ -42,6 +42,7 @@ var arrows = map[geo.XY]string{
 type line struct {
 	from, to   *box
 	fromI, toI int
+	body       string
 }
 
 // given the "primary" direction the line should be headed, picks a possible
@@ -68,6 +69,7 @@ func (l line) draw(term *terminal.Terminal, flowDir, secFlowDir geo.XY) {
 		return xy[1]
 	}
 
+	// collect the points along the line into an array
 	var pts []geo.XY
 	midPrim := along(mid, flowDir)
 	endSec := along(end, dirSec)
@@ -82,6 +84,7 @@ func (l line) draw(term *terminal.Terminal, flowDir, secFlowDir geo.XY) {
 		curr = curr.Add(flowDir)
 	}
 
+	// draw each point
 	for i, pt := range pts {
 		var str string
 		switch {
@@ -100,4 +103,11 @@ func (l line) draw(term *terminal.Terminal, flowDir, secFlowDir geo.XY) {
 		term.MoveCursorTo(pt)
 		term.Printf(str)
 	}
+
+	// draw the body
+	if l.body != "" {
+		bodyPos := mid.Add(geo.Left.Scale(len(l.body) / 2))
+		term.MoveCursorTo(bodyPos)
+		term.Printf(l.body)
+	}
 }

gim/main.go

@@ -63,6 +63,12 @@ func mkGraph() (*gg.Graph, gg.Value) {
 		gg.ValueOut(b3, empty),
 	}, gg.NewValue("jE"))
 	g = g.AddValueIn(jE, c)
+
+	// TODO this really fucks it up
+	//d := gg.NewValue("d")
+	//deE := gg.ValueOut(d, gg.NewValue("deE"))
+	//g = g.AddValueIn(deE, gg.NewValue("e"))
+
 	return g, c
 }
 

gim/view.go

@@ -181,6 +181,7 @@ func (view *view) draw(term *terminal.Terminal) {
 				fromI: fromI,
 				to:    b,
 				toI:   i,
+				body:  e.Value.V.(string),
 			})
 		}
 	}