Exemple #1
0
// Draw the droid on a certain position.
func Draw(gc draw2d.GraphicContext, x, y float64) {
	// set the fill and stroke color of the droid
	gc.SetFillColor(color.RGBA{0x44, 0xff, 0x44, 0xff})
	gc.SetStrokeColor(color.RGBA{0x44, 0x44, 0x44, 0xff})

	// set line properties
	gc.SetLineCap(draw2d.RoundCap)
	gc.SetLineWidth(5)

	// head
	gc.MoveTo(x+30, y+70)
	gc.ArcTo(x+80, y+70, 50, 50, 180*(math.Pi/180), 180*(math.Pi/180))
	gc.Close()
	gc.FillStroke()
	gc.MoveTo(x+60, y+25)
	gc.LineTo(x+50, y+10)
	gc.MoveTo(x+100, y+25)
	gc.LineTo(x+110, y+10)
	gc.Stroke()

	// left eye
	draw2d.Circle(gc, x+60, y+45, 5)
	gc.FillStroke()

	// right eye
	draw2d.Circle(gc, x+100, y+45, 5)
	gc.FillStroke()

	// body
	draw2d.RoundRect(gc, x+30, y+75, x+30+100, y+75+90, 10, 10)
	gc.FillStroke()
	draw2d.Rect(gc, x+30, y+75, x+30+100, y+75+80)
	gc.FillStroke()

	// left arm
	draw2d.RoundRect(gc, x+5, y+80, x+5+20, y+80+70, 10, 10)
	gc.FillStroke()

	// right arm
	draw2d.RoundRect(gc, x+135, y+80, x+135+20, y+80+70, 10, 10)
	gc.FillStroke()

	// left leg
	draw2d.RoundRect(gc, x+50, y+150, x+50+20, y+150+50, 10, 10)
	gc.FillStroke()

	// right leg
	draw2d.RoundRect(gc, x+90, y+150, x+90+20, y+150+50, 10, 10)
	gc.FillStroke()
}
Exemple #2
0
// FillString draws a filled and stroked string.
func FillString(gc draw2d.GraphicContext, x, y, width, height float64) {
	sx, sy := width/100, height/100
	gc.Save()
	gc.SetStrokeColor(image.Black)
	gc.SetLineWidth(1)
	draw2d.RoundRect(gc, x+sx*5, y+sy*5, x+sx*95, y+sy*95, sx*10, sy*10)
	gc.FillStroke()
	gc.SetFillColor(image.Black)
	gc.SetFontSize(height / 6)
	gc.Translate(x+sx*6, y+sy*52)
	gc.SetFontData(draw2d.FontData{
		Name:   "luxi",
		Family: draw2d.FontFamilyMono,
		Style:  draw2d.FontStyleBold | draw2d.FontStyleItalic})
	w := gc.FillString("Hug")
	gc.Translate(w+sx, 0)
	left, top, right, bottom := gc.GetStringBounds("cou")
	gc.SetStrokeColor(color.NRGBA{255, 0x33, 0x33, 0x80})
	draw2d.Rect(gc, left, top, right, bottom)
	gc.SetLineWidth(height / 50)
	gc.Stroke()
	gc.SetFillColor(color.NRGBA{0x33, 0x33, 0xff, 0xff})
	gc.SetStrokeColor(color.NRGBA{0x33, 0x33, 0xff, 0xff})
	gc.SetLineWidth(height / 100)
	gc.StrokeString("Hug")
	gc.Restore()
}
Exemple #3
0
// Draw "Hello World"
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()

	// Set the font luximbi.ttf
	gc.SetFontData(draw2d.FontData{
		Name:   "luxi",
		Family: draw2d.FontFamilyMono,
		Style:  draw2d.FontStyleBold | draw2d.FontStyleItalic})
	// Set the fill text color to black
	gc.SetFillColor(image.Black)
	gc.SetDPI(72)
	gc.SetFontSize(14)
	// Display Hello World
	gc.SetStrokeColor(color.NRGBA{0x33, 0xFF, 0x33, 0xFF})
	gc.MoveTo(8, 0)
	gc.LineTo(8, 52)
	gc.LineTo(297, 52)
	gc.Stroke()
	gc.FillString(text)
	gc.FillStringAt(text, 8, 52)

	gc.Save()
	gc.SetFillColor(color.NRGBA{0xFF, 0x33, 0x33, 0xFF})
	gc.SetStrokeColor(color.NRGBA{0xFF, 0x33, 0x33, 0xFF})
	gc.Translate(145, 85)
	gc.StrokeStringAt(text, -50, 0)
	gc.Rotate(math.Pi / 4)
	gc.SetFillColor(color.NRGBA{0x33, 0x33, 0xFF, 0xFF})
	gc.SetStrokeColor(color.NRGBA{0x33, 0x33, 0xFF, 0xFF})
	gc.StrokeString(text)
	gc.Restore()
}
Exemple #4
0
// Draw the image frame with certain parameters.
func Draw(gc draw2d.GraphicContext, png string,
	dw, dh, margin, lineWidth float64) error {
	// Draw frame
	draw2d.RoundRect(gc, lineWidth, lineWidth,
		dw-lineWidth, dh-lineWidth, 100, 100)
	gc.SetLineWidth(lineWidth)
	gc.FillStroke()

	// load the source image
	source, err := draw2d.LoadFromPngFile(png)
	if err != nil {
		return err
	}
	// Size of source image
	sw, sh := float64(source.Bounds().Dx()), float64(source.Bounds().Dy())
	// Draw image to fit in the frame
	// TODO Seems to have a transform bug here on draw image
	scale := math.Min((dw-margin*2)/sw, (dh-margin*2)/sh)
	gc.Save()
	gc.Translate((dw-sw*scale)/2, (dh-sh*scale)/2)
	gc.Scale(scale, scale)
	gc.Rotate(0.2)

	gc.DrawImage(source)
	gc.Restore()
	return nil
}
Exemple #5
0
func display() {
	gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)

	gl.LineWidth(1)
	gc := draw2dgl.NewGraphicContext(width, height)
	gc.SetFontData(draw2d.FontData{
		Name:   "luxi",
		Family: draw2d.FontFamilyMono,
		Style:  draw2d.FontStyleBold | draw2d.FontStyleItalic})

	gc.BeginPath()
	draw2d.RoundRect(gc, 200, 200, 600, 600, 100, 100)

	gc.SetFillColor(color.RGBA{0, 0, 0, 0xff})
	gc.Fill()

	gl.Flush() /* Single buffered, so needs a flush. */
}
Exemple #6
0
// 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
	draw2d.RoundRect(gc, x, y+h, x+w, y+h+h, h/5, h/5)
	gc.Fill()
	// left ear outside
	draw2d.Circle(gc, x, y+h, w/12)
	gc.SetFillColor(brf)
	gc.Fill()
	// left ear inside
	draw2d.Circle(gc, x, y+h, 0.5*w/12)
	gc.SetFillColor(nf)
	gc.Fill()
	// right ear outside
	draw2d.Circle(gc, x+w, y+h, w/12)
	gc.SetFillColor(brf)
	gc.Fill()
	// right ear inside
	draw2d.Circle(gc, x+w, y+h, 0.5*w/12)
	gc.SetFillColor(nf)
	gc.Fill()
	// left eye outside white
	draw2d.Circle(gc, x+w/3, y+h23, w/9)
	gc.SetFillColor(wf)
	gc.Fill()
	// left eye black
	draw2d.Circle(gc, x+w/3+w/24, y+h23, 0.5*w/9)
	gc.SetFillColor(blf)
	gc.Fill()
	// left eye inside white
	draw2d.Circle(gc, x+w/3+w/24+w/48, y+h23, 0.2*w/9)
	gc.SetFillColor(wf)
	gc.Fill()
	// right eye outside white
	draw2d.Circle(gc, x+w-w/3, y+h23, w/9)
	gc.Fill()
	// right eye black
	draw2d.Circle(gc, x+w-w/3+w/24, y+h23, 0.5*w/9)
	gc.SetFillColor(blf)
	gc.Fill()
	// right eye inside white
	draw2d.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)
	draw2d.RoundRect(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
	draw2d.RoundRect(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
	draw2d.Ellipse(gc, x+(w/2), y+h+h/2.5, w/6, w/12)
	gc.SetFillColor(nf)
	gc.Fill()
	// nose
	draw2d.Ellipse(gc, x+(w/2), y+h+h/7, w/10, w/12)
	gc.SetFillColor(blf)
	gc.Fill()
}