set default fill color to white for NewPdf

pdf2d/graphiccontext.go

@@ -33,11 +33,12 @@ var (
 	white      color.Color = color.RGBA{255, 255, 255, 255}
 )
 
-// NewPdf creates a new pdf document with the draw2d fontfolder and
-// already a page added.
+// NewPdf creates a new pdf document with the draw2d fontfolder, adds
+// a page and set fill color to white.
 func NewPdf(orientationStr, unitStr, sizeStr string) *gofpdf.Fpdf {
 	pdf := gofpdf.New(orientationStr, unitStr, sizeStr, draw2d.GetFontFolder())
 	pdf.AddPage()
+	pdf.SetFillColor(255, 255, 255) // to be compatible with draw2d
 	return pdf
 }
 

pdf2d/samples/frame-image/frame-image.go

@@ -5,7 +5,6 @@
 package main
 
 import (
-	"image/color"
 	"math"
 
 	"github.com/stanim/draw2d"
@@ -24,7 +23,6 @@ func main() {
 	// Size of destination image
 	dw, dh := dest.GetPageSize()
 	// Draw frame
-	gc.SetFillColor(color.RGBA{0xff, 0xff, 0xff, 0xff})
 	draw2d.RoundRect(gc, lineWidth, lineWidth, dw-lineWidth, dh-lineWidth, 100, 100)
 	gc.SetLineWidth(lineWidth)
 	gc.FillStroke()