draw2d/cmd/testandroid.go

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package main
import (
"fmt"
"log"
"os"
"bufio"
"time"
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"math"
"image"
"image/png"
"draw2d.googlecode.com/hg/draw2d"
)
const (
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width, height = 178, 224
)
var (
lastTime int64
folder = "../resource/result/"
)
func initGc(w, h int) (image.Image, draw2d.GraphicContext) {
i := image.NewRGBA(w, h)
gc := draw2d.NewImageGraphicContext(i)
lastTime = time.Nanoseconds()
gc.SetStrokeColor(image.Black)
gc.SetFillColor(image.White)
// fill the background
//gc.Clear()
return i, gc
}
func saveToPngFile(TestName string, m image.Image) {
dt := time.Nanoseconds() - lastTime
fmt.Printf("%s during: %f ms\n", TestName, float64(dt)*10e-6)
filePath := folder + TestName + ".png"
f, err := os.Open(filePath, os.O_CREAT|os.O_WRONLY, 0600)
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 android(gc draw2d.GraphicContext, x, y float64) {
gc.SetLineCap(draw2d.RoundCap)
gc.SetLineWidth(5)
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gc.ArcTo(x+80, y+70, 50, 50, 180*(math.Pi/180), 360*(math.Pi/180)) // head
gc.FillStroke()
gc.MoveTo(x+60, y+25)
gc.LineTo(x+50, y+10)
gc.MoveTo(x+100, y+25)
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gc.LineTo(x+110, y+10)
gc.Stroke()
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draw2d.Circle(gc, x+60, y+45, 5) // left eye
gc.FillStroke()
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draw2d.Circle(gc, x+100, y+45, 5) // right eye
gc.FillStroke()
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draw2d.RoundRect(gc, x+30, y+75, x+30+100, y+75+90, 10, 10) // body
gc.FillStroke()
draw2d.Rect(gc, x+30, y+75, x+30+100, y+75+80)
gc.FillStroke()
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draw2d.RoundRect(gc, x+5, y+80, x+5+20, y+80+70, 10, 10) // left arm
gc.FillStroke()
draw2d.RoundRect(gc, x+135, y+80, x+135+20, y+80+70, 10, 10) // right arm
gc.FillStroke()
draw2d.RoundRect(gc, x+50, y+150, x+50+20, y+150+50, 10, 10) // left leg
gc.FillStroke()
draw2d.RoundRect(gc, x+90, y+150, x+90+20, y+150+50, 10, 10) // right leg
gc.FillStroke()
}
func main() {
i, gc := initGc(width, height)
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gc.SetFillColor(image.RGBAColor{0xff, 0x44, 0x44, 0xff})
gc.SetStrokeColor(image.RGBAColor{0x44, 0x44, 0x44, 0xff})
android(gc, 10, 10)
saveToPngFile("TestAndroid", i)
}