gofmt-ify draw

R=rsc
http://go/go-review/1017055

4 files changed, 79 insertions, 81 deletions

diff --git a/src/pkg/exp/draw/arith.go b/src/pkg/exp/draw/arith.go
index 4c0996597..43aefbaad 100644
--- a/src/pkg/exp/draw/arith.go
+++ b/src/pkg/exp/draw/arith.go
@@ -22,147 +22,146 @@ var ZR Rectangle
 
 // Pt is shorthand for Point{X, Y}.
 func Pt(X, Y int) Point {
-	return Point{X, Y}
+	return Point{X, Y};
 }
 
 // Rect is shorthand for Rectangle{Pt(x0, y0), Pt(x1, y1)}.
 func Rect(x0, y0, x1, y1 int) Rectangle {
-	return Rectangle{Point{x0,y0}, Point{x1,y1}}
+	return Rectangle{Point{x0, y0}, Point{x1, y1}};
 }
 
 // Rpt is shorthand for Rectangle{min, max}.
 func Rpt(min, max Point) Rectangle {
-	return Rectangle{min, max}
+	return Rectangle{min, max};
 }
 
 // Add returns the sum of p and q: Pt(p.X+q.X, p.Y+q.Y).
 func (p Point) Add(q Point) Point {
-	return Point{p.X+q.X, p.Y+q.Y}
+	return Point{p.X + q.X, p.Y + q.Y};
 }
 
 // Sub returns the difference of p and q: Pt(p.X-q.X, p.Y-q.Y).
 func (p Point) Sub(q Point) Point {
-	return Point{p.X-q.X, p.Y-q.Y}
+	return Point{p.X - q.X, p.Y - q.Y};
 }
 
 // Mul returns p scaled by k: Pt(p.X*k p.Y*k).
 func (p Point) Mul(k int) Point {
-	return Point{p.X*k, p.Y*k}
+	return Point{p.X * k, p.Y * k};
 }
 
 // Div returns p divided by k: Pt(p.X/k, p.Y/k).
 func (p Point) Div(k int) Point {
-	return Point{p.X/k, p.Y/k}
+	return Point{p.X / k, p.Y / k};
 }
 
 // Eq returns true if p and q are equal.
 func (p Point) Eq(q Point) bool {
-	return p.X == q.X && p.Y == q.Y
+	return p.X == q.X && p.Y == q.Y;
 }
 
 // Inset returns the rectangle r inset by n: Rect(r.Min.X+n, r.Min.Y+n, r.Max.X-n, r.Max.Y-n).
 func (r Rectangle) Inset(n int) Rectangle {
-	return Rectangle{Point{r.Min.X+n, r.Min.Y+n}, Point{r.Max.X-n, r.Max.Y-n}}
+	return Rectangle{Point{r.Min.X + n, r.Min.Y + n}, Point{r.Max.X - n, r.Max.Y - n}};
 }
 
 // Add returns the rectangle r translated by p: Rpt(r.Min.Add(p), r.Max.Add(p)).
 func (r Rectangle) Add(p Point) Rectangle {
-	return Rectangle{r.Min.Add(p), r.Max.Add(p)}
+	return Rectangle{r.Min.Add(p), r.Max.Add(p)};
 }
 
 // Sub returns the rectangle r translated by -p: Rpt(r.Min.Sub(p), r.Max.Sub(p)).
 func (r Rectangle) Sub(p Point) Rectangle {
-	return Rectangle{r.Min.Sub(p), r.Max.Sub(p)}
+	return Rectangle{r.Min.Sub(p), r.Max.Sub(p)};
 }
 
 // Canon returns a canonical version of r: the returned rectangle
 // has Min.X <= Max.X and Min.Y <= Max.Y.
 func (r Rectangle) Canon() Rectangle {
 	if r.Max.X < r.Min.X {
-		r.Max.X = r.Min.X
+		r.Max.X = r.Min.X;
 	}
 	if r.Max.Y < r.Min.Y {
-		r.Max.Y = r.Min.Y
+		r.Max.Y = r.Min.Y;
 	}
 	return r;
 }
 
 // Overlaps returns true if r and r1 cross; that is, it returns true if they share any point.
 func (r Rectangle) Overlaps(r1 Rectangle) bool {
-	return r.Min.X < r1.Max.X && r1.Min.X < r.Max.X
-		&& r.Min.Y < r1.Max.Y && r1.Min.Y < r.Max.Y
+	return r.Min.X < r1.Max.X && r1.Min.X < r.Max.X &&
+		r.Min.Y < r1.Max.Y && r1.Min.Y < r.Max.Y;
 }
 
 // Empty retruns true if r contains no points.
 func (r Rectangle) Empty() bool {
-	return r.Max.X <= r.Min.X || r.Max.Y <= r.Min.Y
+	return r.Max.X <= r.Min.X || r.Max.Y <= r.Min.Y;
 }
 
 // InRect returns true if all the points in r are also in r1.
 func (r Rectangle) In(r1 Rectangle) bool {
 	if r.Empty() {
-		return true
+		return true;
 	}
 	if r1.Empty() {
-		return false
+		return false;
 	}
-	return r1.Min.X <= r.Min.X && r.Max.X <= r1.Max.X
-		&& r1.Min.Y <= r.Min.Y && r.Max.Y <= r1.Max.Y
+	return r1.Min.X <= r.Min.X && r.Max.X <= r1.Max.X &&
+		r1.Min.Y <= r.Min.Y && r.Max.Y <= r1.Max.Y;
 }
 
 // Combine returns the smallest rectangle containing all points from r and from r1.
 func (r Rectangle) Combine(r1 Rectangle) Rectangle {
 	if r.Empty() {
-		return r1
+		return r1;
 	}
 	if r1.Empty() {
-		return r
+		return r;
 	}
 	if r.Min.X > r1.Min.X {
-		r.Min.X = r1.Min.X
+		r.Min.X = r1.Min.X;
 	}
 	if r.Min.Y > r1.Min.Y {
-		r.Min.Y = r1.Min.Y
+		r.Min.Y = r1.Min.Y;
 	}
 	if r.Max.X < r1.Max.X {
-		r.Max.X = r1.Max.X
+		r.Max.X = r1.Max.X;
 	}
 	if r.Max.Y < r1.Max.Y {
-		r.Max.Y = r1.Max.Y
+		r.Max.Y = r1.Max.Y;
 	}
-	return r
+	return r;
 }
 
 // Clip returns the largest rectangle containing only points shared by r and r1.
 func (r Rectangle) Clip(r1 Rectangle) Rectangle {
 	if r.Empty() {
-		return r
+		return r;
 	}
 	if r1.Empty() {
-		return r1
+		return r1;
 	}
 	if r.Min.X < r1.Min.X {
-		r.Min.X = r1.Min.X
+		r.Min.X = r1.Min.X;
 	}
 	if r.Min.Y < r1.Min.Y {
-		r.Min.Y = r1.Min.Y
+		r.Min.Y = r1.Min.Y;
 	}
 	if r.Max.X > r1.Max.X {
-		r.Max.X = r1.Max.X
+		r.Max.X = r1.Max.X;
 	}
 	if r.Max.Y > r1.Max.Y {
-		r.Max.Y = r1.Max.Y
+		r.Max.Y = r1.Max.Y;
 	}
 	return r;
 }
 
 // Dx returns the width of the rectangle r: r.Max.X - r.Min.X.
 func (r Rectangle) Dx() int {
-	return r.Max.X - r.Min.X
+	return r.Max.X - r.Min.X;
 }
 
 // Dy returns the width of the rectangle r: r.Max.Y - r.Min.Y.
 func (r Rectangle) Dy() int {
-	return r.Max.Y - r.Min.Y
+	return r.Max.Y - r.Min.Y;
 }
-
diff --git a/src/pkg/exp/draw/color.go b/src/pkg/exp/draw/color.go
index bae35eba5..db772c7ad 100644
--- a/src/pkg/exp/draw/color.go
+++ b/src/pkg/exp/draw/color.go
@@ -19,32 +19,32 @@ var _ image.Color = Black
 var _ image.Image = Black
 
 var (
-	Opaque Color = 0xFFFFFFFF;
-	Transparent Color = 0x00000000;
-	Black Color = 0x000000FF;
-	White Color = 0xFFFFFFFF;
-	Red Color = 0xFF0000FF;
-	Green Color = 0x00FF00FF;
-	Blue Color = 0x0000FFFF;
-	Cyan Color = 0x00FFFFFF;
-	Magenta Color = 0xFF00FFFF;
-	Yellow Color = 0xFFFF00FF;
-	PaleYellow Color = 0xFFFFAAFF;
-	DarkYellow Color = 0xEEEE9EFF;
-	DarkGreen Color = 0x448844FF;
-	PaleGreen Color = 0xAAFFAAFF;
-	MedGreen Color = 0x88CC88FF;
-	DarkBlue Color = 0x000055FF;
-	PaleBlueGreen Color = 0xAAFFFFFF;
-	PaleBlue Color = 0x0000BBFF;
-	BlueGreen Color = 0x008888FF;
-	GreyGreen Color = 0x55AAAAFF;
-	PaleGreyGreen Color = 0x9EEEEEFF;
-	YellowGreen Color = 0x99994CFF;
-	MedBlue Color = 0x000099FF;
-	GreyBlue Color = 0x005DBBFF;
-	PaleGreyBlue Color = 0x4993DDFF;
-	PurpleBlue Color = 0x8888CCFF;
+	Opaque		Color	= 0xFFFFFFFF;
+	Transparent	Color	= 0x00000000;
+	Black		Color	= 0x000000FF;
+	White		Color	= 0xFFFFFFFF;
+	Red		Color	= 0xFF0000FF;
+	Green		Color	= 0x00FF00FF;
+	Blue		Color	= 0x0000FFFF;
+	Cyan		Color	= 0x00FFFFFF;
+	Magenta		Color	= 0xFF00FFFF;
+	Yellow		Color	= 0xFFFF00FF;
+	PaleYellow	Color	= 0xFFFFAAFF;
+	DarkYellow	Color	= 0xEEEE9EFF;
+	DarkGreen	Color	= 0x448844FF;
+	PaleGreen	Color	= 0xAAFFAAFF;
+	MedGreen	Color	= 0x88CC88FF;
+	DarkBlue	Color	= 0x000055FF;
+	PaleBlueGreen	Color	= 0xAAFFFFFF;
+	PaleBlue	Color	= 0x0000BBFF;
+	BlueGreen	Color	= 0x008888FF;
+	GreyGreen	Color	= 0x55AAAAFF;
+	PaleGreyGreen	Color	= 0x9EEEEEFF;
+	YellowGreen	Color	= 0x99994CFF;
+	MedBlue		Color	= 0x000099FF;
+	GreyBlue	Color	= 0x005DBBFF;
+	PaleGreyBlue	Color	= 0x4993DDFF;
+	PurpleBlue	Color	= 0x8888CCFF;
 )
 
 func (c Color) RGBA() (r, g, b, a uint32) {
@@ -66,7 +66,7 @@ func (c Color) RGBA() (r, g, b, a uint32) {
 func (c Color) SetAlpha(a uint8) Color {
 	r, g, b, oa := c>>24, (c>>16)&0xFF, (c>>8)&0xFF, c&0xFF;
 	if oa == 0 {
-		return 0
+		return 0;
 	}
 	r = r*Color(a)/oa;
 	if r < 0 {
diff --git a/src/pkg/exp/draw/draw.go b/src/pkg/exp/draw/draw.go
index 4fc6a94ca..0f5f9bb46 100644
--- a/src/pkg/exp/draw/draw.go
+++ b/src/pkg/exp/draw/draw.go
@@ -56,8 +56,8 @@ func Draw(dst Image, r Rectangle, src, mask image.Image, pt Point) {
 	}
 
 	var out *image.RGBA64Color;
-	for y := y0; y != y1; y+=dy {
-		for x := x0; x != x1; x+=dx {
+	for y := y0; y != y1; y += dy {
+		for x := x0; x != x1; x += dx {
 			sx := pt.X + x - r.Min.X;
 			sy := pt.Y + y - r.Min.Y;
 			if mask == nil {
@@ -84,10 +84,10 @@ func Draw(dst Image, r Rectangle, src, mask image.Image, pt Point) {
 				ma >>= 16;
 				const M = 1<<16 - 1;
 				a := sa*ma/M;
-				dr = (dr*(M-a) + sr*ma) / M;
-				dg = (dg*(M-a) + sg*ma) / M;
-				db = (db*(M-a) + sb*ma) / M;
-				da = (da*(M-a) + sa*ma) / M;
+				dr = (dr*(M-a) + sr*ma)/M;
+				dg = (dg*(M-a) + sg*ma)/M;
+				db = (db*(M-a) + sb*ma)/M;
+				da = (da*(M-a) + sa*ma)/M;
 				if out == nil {
 					out = new(image.RGBA64Color);
 				}
@@ -109,17 +109,17 @@ func Border(dst Image, r Rectangle, w int, src image.Image, sp Point) {
 	i := w;
 	if i > 0 {
 		// inside r
-		Draw(dst, Rect(r.Min.X, r.Min.Y, r.Max.X, r.Min.Y+i), src, nil, sp);	// top
-		Draw(dst, Rect(r.Min.X, r.Min.Y+i, r.Min.X+i, r.Max.Y-i), src, nil, sp.Add(Pt(0, i)));	// left
-		Draw(dst, Rect(r.Max.X-i, r.Min.Y+i, r.Max.X, r.Max.Y-i), src, nil, sp.Add(Pt(r.Dx()-i, i)));	// right
-		Draw(dst, Rect(r.Min.X, r.Max.Y-i, r.Max.X, r.Max.Y), src, nil, sp.Add(Pt(0, r.Dy()-i)));	// bottom
+		Draw(dst, Rect(r.Min.X, r.Min.Y, r.Max.X, r.Min.Y + i), src, nil, sp);					// top
+		Draw(dst, Rect(r.Min.X, r.Min.Y + i, r.Min.X + i, r.Max.Y - i), src, nil, sp.Add(Pt(0, i)));		// left
+		Draw(dst, Rect(r.Max.X - i, r.Min.Y + i, r.Max.X, r.Max.Y - i), src, nil, sp.Add(Pt(r.Dx() - i, i)));	// right
+		Draw(dst, Rect(r.Min.X, r.Max.Y - i, r.Max.X, r.Max.Y), src, nil, sp.Add(Pt(0, r.Dy() - i)));		// bottom
 		return;
 	}
 
 	// outside r;
 	i = -i;
-	Draw(dst, Rect(r.Min.X-i, r.Min.Y-i, r.Max.X+i, r.Min.Y), src, nil, sp.Add(Pt(-i, -i)));	// top
-	Draw(dst, Rect(r.Min.X-i, r.Min.Y, r.Min.X, r.Max.Y), src, nil, sp.Add(Pt(-i, 0)));	// left
-	Draw(dst, Rect(r.Max.X, r.Min.Y, r.Max.X+i, r.Max.Y), src, nil, sp.Add(Pt(r.Dx(), 0)));	// right
-	Draw(dst, Rect(r.Min.X-i, r.Max.Y, r.Max.X+i, r.Max.Y+i), src, nil, sp.Add(Pt(-i, 0)));	// bottom
+	Draw(dst, Rect(r.Min.X - i, r.Min.Y - i, r.Max.X + i, r.Min.Y), src, nil, sp.Add(Pt(-i, -i)));	// top
+	Draw(dst, Rect(r.Min.X - i, r.Min.Y, r.Min.X, r.Max.Y), src, nil, sp.Add(Pt(-i, 0)));		// left
+	Draw(dst, Rect(r.Max.X, r.Min.Y, r.Max.X + i, r.Max.Y), src, nil, sp.Add(Pt(r.Dx(), 0)));	// right
+	Draw(dst, Rect(r.Min.X - i, r.Max.Y, r.Max.X + i, r.Max.Y + i), src, nil, sp.Add(Pt(-i, 0)));	// bottom
 }
diff --git a/src/pkg/exp/draw/event.go b/src/pkg/exp/draw/event.go
index b5bce5078..8a148bd48 100644
--- a/src/pkg/exp/draw/event.go
+++ b/src/pkg/exp/draw/event.go
@@ -40,8 +40,7 @@ type Context interface {
 
 // A Mouse represents the state of the mouse.
 type Mouse struct {
-	Buttons int;	// bit mask of buttons: 1<<0 is left, 1<<1 middle, 1<<2 right
-	Point;	// location of cursor
-	Nsec int64;	// time stamp
+	Buttons	int;	// bit mask of buttons: 1<<0 is left, 1<<1 middle, 1<<2 right
+	Point;		// location of cursor
+	Nsec	int64;	// time stamp
 }
-