// Copyright 2010 The draw2d Authors. All rights reserved. // created: 21/11/2010 by Laurent Le Goff // Package gopher2 draws a gopher avatar based on a svg of: // https://github.com/golang-samples/gopher-vector/ package gopher2 import ( "image" "image/color" "math" "git.fromouter.space/crunchy-rocks/draw2d" "git.fromouter.space/crunchy-rocks/draw2d/draw2dkit" "git.fromouter.space/crunchy-rocks/draw2d/samples" ) // Main draws a rotated face of the gopher. Afterwards it returns // the filename. This should only be used during testing. func Main(gc draw2d.GraphicContext, ext string) (string, error) { gc.SetStrokeColor(image.Black) gc.SetFillColor(image.White) gc.Save() // Draw a (partial) gopher gc.Translate(-60, 65) gc.Rotate(-30 * (math.Pi / 180.0)) Draw(gc, 48, 48, 240, 72) gc.Restore() // Return the output filename return samples.Output("gopher2", ext), nil } // Draw a gopher head (not rotated) func Draw(gc draw2d.GraphicContext, x, y, w, h float64) { h23 := (h * 2) / 3 blf := color.RGBA{0, 0, 0, 0xff} // black wf := color.RGBA{0xff, 0xff, 0xff, 0xff} // white nf := color.RGBA{0x8B, 0x45, 0x13, 0xff} // brown opaque brf := color.RGBA{0x8B, 0x45, 0x13, 0x99} // brown transparant brb := color.RGBA{0x8B, 0x45, 0x13, 0xBB} // brown transparant // round head top gc.MoveTo(x, y+h*1.002) gc.CubicCurveTo(x+w/4, y-h/3, x+3*w/4, y-h/3, x+w, y+h*1.002) gc.Close() gc.SetFillColor(brb) gc.Fill() // rectangle head bottom draw2dkit.RoundedRectangle(gc, x, y+h, x+w, y+h+h, h/5, h/5) gc.Fill() // left ear outside draw2dkit.Circle(gc, x, y+h, w/12) gc.SetFillColor(brf) gc.Fill() // left ear inside draw2dkit.Circle(gc, x, y+h, 0.5*w/12) gc.SetFillColor(nf) gc.Fill() // right ear outside draw2dkit.Circle(gc, x+w, y+h, w/12) gc.SetFillColor(brf) gc.Fill() // right ear inside draw2dkit.Circle(gc, x+w, y+h, 0.5*w/12) gc.SetFillColor(nf) gc.Fill() // left eye outside white draw2dkit.Circle(gc, x+w/3, y+h23, w/9) gc.SetFillColor(wf) gc.Fill() // left eye black draw2dkit.Circle(gc, x+w/3+w/24, y+h23, 0.5*w/9) gc.SetFillColor(blf) gc.Fill() // left eye inside white draw2dkit.Circle(gc, x+w/3+w/24+w/48, y+h23, 0.2*w/9) gc.SetFillColor(wf) gc.Fill() // right eye outside white draw2dkit.Circle(gc, x+w-w/3, y+h23, w/9) gc.Fill() // right eye black draw2dkit.Circle(gc, x+w-w/3+w/24, y+h23, 0.5*w/9) gc.SetFillColor(blf) gc.Fill() // right eye inside white draw2dkit.Circle(gc, x+w-(w/3)+w/24+w/48, y+h23, 0.2*w/9) gc.SetFillColor(wf) gc.Fill() // left tooth gc.SetFillColor(wf) draw2dkit.RoundedRectangle(gc, x+w/2-w/8, y+h+h/2.5, x+w/2-w/8+w/8, y+h+h/2.5+w/6, w/10, w/10) gc.Fill() // right tooth draw2dkit.RoundedRectangle(gc, x+w/2, y+h+h/2.5, x+w/2+w/8, y+h+h/2.5+w/6, w/10, w/10) gc.Fill() // snout draw2dkit.Ellipse(gc, x+(w/2), y+h+h/2.5, w/6, w/12) gc.SetFillColor(nf) gc.Fill() // nose draw2dkit.Ellipse(gc, x+(w/2), y+h+h/7, w/10, w/12) gc.SetFillColor(blf) gc.Fill() }