From f879ad32a7d9538777cb59573b335c0043153ba0 Mon Sep 17 00:00:00 2001
From: Stani <spe.stani.be@gmail.com>
Date: Fri, 10 Jul 2015 21:50:07 +0200
Subject: [PATCH] get 100% test coverage for draw2dpdf

---
 draw2dpdf/gc.go                  |  3 ++-
 draw2dpdf/path_converter.go      |  3 +--
 samples/helloworld/helloworld.go | 18 +++++++++++-------
 samples/line/line.go             |  8 ++++++++
 4 files changed, 22 insertions(+), 10 deletions(-)

diff --git a/draw2dpdf/gc.go b/draw2dpdf/gc.go
index e1844fb..50a7137 100644
--- a/draw2dpdf/gc.go
+++ b/draw2dpdf/gc.go
@@ -105,7 +105,8 @@ func (gc *GraphicContext) Clear() {
 	clearRect(gc, 0, 0, width, height)
 }
 
-// ClearRect draws a white rectangle over the specified area
+// ClearRect draws a white rectangle over the specified area.
+// Samples: line.
 func (gc *GraphicContext) ClearRect(x1, y1, x2, y2 int) {
 	clearRect(gc, float64(x1), float64(y1), float64(x2), float64(y2))
 }
diff --git a/draw2dpdf/path_converter.go b/draw2dpdf/path_converter.go
index c58d53e..77bbfb6 100644
--- a/draw2dpdf/path_converter.go
+++ b/draw2dpdf/path_converter.go
@@ -52,9 +52,8 @@ func (c *PathConverter) ConvertCommand(cmd draw2d.PathCmd, vertices ...float64)
 			vertices[4]*deg,               // degStart = startAngle
 			(vertices[4]-vertices[5])*deg) // degEnd = startAngle-angle
 		return 6
-	case draw2d.Close:
+	default: // case draw2d.Close:
 		c.pdf.ClosePath()
 		return 0
 	}
-	return 0
 }
diff --git a/samples/helloworld/helloworld.go b/samples/helloworld/helloworld.go
index 8d7f330..301edcd 100644
--- a/samples/helloworld/helloworld.go
+++ b/samples/helloworld/helloworld.go
@@ -1,11 +1,12 @@
 // Copyright 2010 The draw2d Authors. All rights reserved.
 // created: 21/11/2010 by Laurent Le Goff, Stani Michiels
 
-// Package helloworld displays "Hello World" twice (one rotated) in a
-// rounded rectangle.
+// Package helloworld displays multiple "Hello World" (one rotated)
+// in a rounded rectangle.
 package helloworld
 
 import (
+	"fmt"
 	"image"
 	"image/color"
 	"math"
@@ -18,14 +19,14 @@ import (
 // used during testing.
 func Main(gc draw2d.GraphicContext, ext string) (string, error) {
 	// Draw hello world
-	Draw(gc)
+	Draw(gc, fmt.Sprintf("Hello World %d dpi", gc.GetDPI()))
 
 	// Return the output filename
 	return samples.Output("helloworld", ext), nil
 }
 
 // Draw "Hello World"
-func Draw(gc draw2d.GraphicContext) {
+func Draw(gc draw2d.GraphicContext, text string) {
 	// Draw a rounded rectangle using default colors
 	draw2d.RoundRect(gc, 5, 5, 292, 205, 10, 10)
 	gc.FillStroke()
@@ -40,12 +41,15 @@ func Draw(gc draw2d.GraphicContext) {
 	gc.SetDPI(72)
 	gc.SetFontSize(14)
 	// Display Hello World
-	gc.FillStringAt("Hello World", 8, 52)
+	gc.FillString(text)
+	gc.FillStringAt(text, 8, 52)
 
 	gc.Save()
 	gc.SetFillColor(color.NRGBA{0xFF, 0x33, 0x33, 0xFF})
-	gc.Translate(145, 105)
+	gc.Translate(145, 85)
+	gc.StrokeStringAt(text, -50, 0)
 	gc.Rotate(math.Pi / 4)
-	gc.FillStringAt("Hello World", 0, 0)
+	gc.SetFillColor(color.NRGBA{0x33, 0x33, 0xFF, 0xFF})
+	gc.StrokeString(text)
 	gc.Restore()
 }
diff --git a/samples/line/line.go b/samples/line/line.go
index 7331cd5..2899d94 100644
--- a/samples/line/line.go
+++ b/samples/line/line.go
@@ -5,6 +5,8 @@
 package line
 
 import (
+	"image/color"
+
 	"github.com/llgcode/draw2d"
 	"github.com/llgcode/draw2d/samples"
 )
@@ -12,10 +14,16 @@ import (
 // Main draws vertically spaced lines and returns the filename.
 // This should only be used during testing.
 func Main(gc draw2d.GraphicContext, ext string) (string, error) {
+	gc.SetFillRule(draw2d.FillRuleWinding)
+	gc.Clear()
 	// Draw the line
 	for x := 5.0; x < 297; x += 10 {
 		Draw(gc, x, 0, x, 210)
 	}
+	gc.ClearRect(100, 75, 197, 135)
+	draw2d.Ellipse(gc, 148.5, 105, 35, 25)
+	gc.SetFillColor(color.RGBA{0xff, 0xff, 0x44, 0xff})
+	gc.FillStroke()
 
 	// Return the output filename
 	return samples.Output("line", ext), nil