Merge pull request #197 from mum4k/lint

Fixing lint issues found on Go report card.

CHANGELOG.md

@@ -11,6 +11,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - The `Donut` widget now guarantees spacing between the donut and its label.
 
+### Fixed
+
+- Lint issues found on the Go report card.
+
 ## [0.9.0] - 28-Apr-2019
 
 ### Added

internal/area/area.go

@@ -186,16 +186,16 @@ func Shrink(area image.Rectangle, topCells, rightCells, bottomCells, leftCells i
 		}
 	}
 
-	shrinked := area
-	shrinked.Min.X, _ = numbers.MinMaxInts([]int{shrinked.Min.X + leftCells, shrinked.Max.X})
-	_, shrinked.Max.X = numbers.MinMaxInts([]int{shrinked.Max.X - rightCells, shrinked.Min.X})
-	shrinked.Min.Y, _ = numbers.MinMaxInts([]int{shrinked.Min.Y + topCells, shrinked.Max.Y})
-	_, shrinked.Max.Y = numbers.MinMaxInts([]int{shrinked.Max.Y - bottomCells, shrinked.Min.Y})
+	shrunk := area
+	shrunk.Min.X, _ = numbers.MinMaxInts([]int{shrunk.Min.X + leftCells, shrunk.Max.X})
+	_, shrunk.Max.X = numbers.MinMaxInts([]int{shrunk.Max.X - rightCells, shrunk.Min.X})
+	shrunk.Min.Y, _ = numbers.MinMaxInts([]int{shrunk.Min.Y + topCells, shrunk.Max.Y})
+	_, shrunk.Max.Y = numbers.MinMaxInts([]int{shrunk.Max.Y - bottomCells, shrunk.Min.Y})
 
-	if shrinked.Dx() == 0 || shrinked.Dy() == 0 {
+	if shrunk.Dx() == 0 || shrunk.Dy() == 0 {
 		return image.ZR, nil
 	}
-	return shrinked, nil
+	return shrunk, nil
 }
 
 // ShrinkPercent returns a new area whose size is reduced by percentage of its

widgets/donut/donut.go

@@ -192,15 +192,12 @@ func (d *Donut) drawLabel(cvs *canvas.Canvas, labelAr image.Rectangle) error {
 	if err != nil {
 		return err
 	}
-	if err := draw.Text(
+	return draw.Text(
 		cvs, d.opts.label, start,
 		draw.TextOverrunMode(draw.OverrunModeThreeDot),
 		draw.TextMaxX(labelAr.Max.X),
 		draw.TextCellOpts(d.opts.labelCellOpts...),
-	); err != nil {
-		return err
-	}
-	return nil
+	)
 }
 
 // Draw draws the Donut widget onto the canvas.

widgets/textinput/textinput.go

@@ -110,15 +110,12 @@ func (ti *TextInput) drawLabel(cvs *canvas.Canvas, labelAr image.Rectangle) erro
 	if err != nil {
 		return err
 	}
-	if err := draw.Text(
+	return draw.Text(
 		cvs, ti.opts.label, start,
 		draw.TextOverrunMode(draw.OverrunModeThreeDot),
 		draw.TextMaxX(labelAr.Max.X),
 		draw.TextCellOpts(ti.opts.labelCellOpts...),
-	); err != nil {
-		return err
-	}
-	return nil
+	)
 }
 
 // drawField draws the text input field.
@@ -131,14 +128,11 @@ func (ti *TextInput) drawField(cvs *canvas.Canvas, text string) error {
 		text = hideText(text, ti.opts.hideTextWith)
 	}
 
-	if err := draw.Text(
+	return draw.Text(
 		cvs, text, ti.forField.Min,
 		draw.TextMaxX(ti.forField.Max.X),
 		draw.TextCellOpts(cell.FgColor(ti.opts.textColor)),
-	); err != nil {
-		return err
-	}
-	return nil
+	)
 }
 
 // drawCursor draws the cursor within the text input field.

widgets/textinput/textinputdemo/textinputdemo.go

@@ -143,6 +143,9 @@ func main() {
 		button.GlobalKey(keyboard.KeyEnter),
 		button.FillColor(cell.ColorNumber(220)),
 	)
+	if err != nil {
+		panic(err)
+	}
 	clearB, err := button.New("Clear", func() error {
 		input.ReadAndClear()
 		updateText <- ""
@@ -151,6 +154,9 @@ func main() {
 		button.WidthFor("Submit"),
 		button.FillColor(cell.ColorNumber(220)),
 	)
+	if err != nil {
+		panic(err)
+	}
 	quitB, err := button.New("Quit", func() error {
 		cancel()
 		return nil
@@ -158,6 +164,9 @@ func main() {
 		button.WidthFor("Submit"),
 		button.FillColor(cell.ColorNumber(196)),
 	)
+	if err != nil {
+		panic(err)
+	}
 
 	builder := grid.New()
 	builder.Add(