issue23

issue23/issue23.go

@@ -0,0 +1,64 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"log"
+	"os"
+
+	"code.google.com/p/draw2d/draw2d"
+	"image"
+	"image/draw"
+	"image/png"
+	"math"
+)
+
+func saveToPngFile(filePath string, m image.Image) {
+	f, err := os.Create(filePath)
+	if err != nil {
+		log.Println(err)
+		os.Exit(1)
+	}
+	defer f.Close()
+	b := bufio.NewWriter(f)
+	err = png.Encode(b, m)
+	if err != nil {
+		log.Println(err)
+		os.Exit(1)
+	}
+	err = b.Flush()
+	if err != nil {
+		log.Println(err)
+		os.Exit(1)
+	}
+	fmt.Printf("Wrote %s OK.\n", filePath)
+}
+func main() {
+	file, err := os.Open("android.png")
+	if err != nil {
+	    log.Fatal(err)
+	}
+	defer file.Close()	
+	a, _, err := image.Decode(file)
+
+	//load go icon image
+	file2, err := os.Open("go.png")
+	if err != nil {
+	    log.Fatal(err)
+	}
+	defer file2.Close() 
+	g, _, err := image.Decode(file2)
+
+	if err != nil {
+	    log.Fatal(err)
+	}
+	
+	ar := a.Bounds()
+	w, h, x := ar.Dx(), ar.Dy(), 30.0
+	i := image.NewRGBA(image.Rect(0, 0, w, h))
+	draw.Draw(i, ar, a, ar.Min, draw.Src)
+	
+	tr := draw2d.NewRotationMatrix(x*(math.Pi / 180.0))
+	draw2d.DrawImage(g, i, tr, draw.Over, draw2d.LinearFilter)
+	saveToPngFile("Test2.png", i)
+}