add geometry and gopher2 samples
This commit is contained in:
Stani
parent
6e1b43c32f
commit
a43544c31d
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@ -10,7 +10,9 @@ import (
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"github.com/llgcode/draw2d"
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"github.com/llgcode/draw2d/samples/android"
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"github.com/llgcode/draw2d/samples/frameimage"
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"github.com/llgcode/draw2d/samples/geometry"
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"github.com/llgcode/draw2d/samples/gopher"
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"github.com/llgcode/draw2d/samples/gopher2"
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"github.com/llgcode/draw2d/samples/helloworld"
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"github.com/llgcode/draw2d/samples/line"
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"github.com/llgcode/draw2d/samples/linecapjoin"
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@ -21,10 +23,23 @@ func TestSampleAndroid(t *testing.T) {
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test(t, android.Main)
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}
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// TODO: FillString: w (width) is incorrect
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func TestSampleGeometry(t *testing.T) {
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// Set the global folder for searching fonts
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// The pdf backend needs for every ttf file its corresponding
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// json/.z file which is generated by gofpdf/makefont.
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draw2d.SetFontFolder("../resource/font")
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test(t, geometry.Main)
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}
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func TestSampleGopher(t *testing.T) {
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test(t, gopher.Main)
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}
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func TestSampleGopher2(t *testing.T) {
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test(t, gopher2.Main)
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}
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func TestSampleHelloWorld(t *testing.T) {
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// Set the global folder for searching fonts
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// The pdf backend needs for every ttf file its corresponding
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@ -0,0 +1,317 @@
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// Copyright 2010 The draw2d Authors. All rights reserved.
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// created: 21/11/2010 by Laurent Le Goff
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// Package geometry draws some geometric tests.
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package geometry
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import (
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"image"
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"image/color"
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"math"
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"github.com/llgcode/draw2d"
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"github.com/llgcode/draw2d/samples"
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"github.com/llgcode/draw2d/samples/gopher2"
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)
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// Main draws geometry and returns the filename. This should only be
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// used during testing.
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func Main(gc draw2d.GraphicContext, ext string) (string, error) {
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// Draw the droid
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Draw(gc, 297, 210)
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// Return the output filename
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return samples.Output("geometry", ext), nil
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}
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// Bubble draws a text balloon
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func Bubble(gc draw2d.GraphicContext, x, y, width, height float64) {
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sx, sy := width/100, height/100
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gc.MoveTo(x+sx*50, y)
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gc.QuadCurveTo(x, y, x, y+sy*37.5)
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gc.QuadCurveTo(x, y+sy*75, x+sx*25, y+sy*75)
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gc.QuadCurveTo(x+sx*25, y+sy*95, x+sx*5, y+sy*100)
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gc.QuadCurveTo(x+sx*35, y+sy*95, x+sx*40, y+sy*75)
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gc.QuadCurveTo(x+sx*100, y+sy*75, x+sx*100, y+sy*37.5)
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gc.QuadCurveTo(x+sx*100, y, x+sx*50, y)
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gc.Stroke()
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}
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func CurveRectangle(gc draw2d.GraphicContext, x0, y0,
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rect_width, rect_height float64, stroke, fill color.Color) {
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radius := (rect_width + rect_height) / 4
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x1 := x0 + rect_width
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y1 := y0 + rect_height
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if rect_width/2 < radius {
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if rect_height/2 < radius {
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gc.MoveTo(x0, (y0+y1)/2)
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gc.CubicCurveTo(x0, y0, x0, y0, (x0+x1)/2, y0)
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gc.CubicCurveTo(x1, y0, x1, y0, x1, (y0+y1)/2)
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gc.CubicCurveTo(x1, y1, x1, y1, (x1+x0)/2, y1)
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gc.CubicCurveTo(x0, y1, x0, y1, x0, (y0+y1)/2)
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} else {
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gc.MoveTo(x0, y0+radius)
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gc.CubicCurveTo(x0, y0, x0, y0, (x0+x1)/2, y0)
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gc.CubicCurveTo(x1, y0, x1, y0, x1, y0+radius)
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gc.LineTo(x1, y1-radius)
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gc.CubicCurveTo(x1, y1, x1, y1, (x1+x0)/2, y1)
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gc.CubicCurveTo(x0, y1, x0, y1, x0, y1-radius)
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}
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} else {
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if rect_height/2 < radius {
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gc.MoveTo(x0, (y0+y1)/2)
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gc.CubicCurveTo(x0, y0, x0, y0, x0+radius, y0)
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gc.LineTo(x1-radius, y0)
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gc.CubicCurveTo(x1, y0, x1, y0, x1, (y0+y1)/2)
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gc.CubicCurveTo(x1, y1, x1, y1, x1-radius, y1)
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gc.LineTo(x0+radius, y1)
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gc.CubicCurveTo(x0, y1, x0, y1, x0, (y0+y1)/2)
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} else {
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gc.MoveTo(x0, y0+radius)
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gc.CubicCurveTo(x0, y0, x0, y0, x0+radius, y0)
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gc.LineTo(x1-radius, y0)
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gc.CubicCurveTo(x1, y0, x1, y0, x1, y0+radius)
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gc.LineTo(x1, y1-radius)
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gc.CubicCurveTo(x1, y1, x1, y1, x1-radius, y1)
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gc.LineTo(x0+radius, y1)
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gc.CubicCurveTo(x0, y1, x0, y1, x0, y1-radius)
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}
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}
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gc.Close()
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gc.SetStrokeColor(stroke)
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gc.SetFillColor(fill)
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gc.SetLineWidth(10.0)
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gc.FillStroke()
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}
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func Dash(gc draw2d.GraphicContext, x, y, width, height float64) {
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sx, sy := width/162, height/205
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gc.SetStrokeColor(image.Black)
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gc.SetLineDash([]float64{height / 10, height / 50, height / 50, height / 50}, -50.0)
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gc.SetLineCap(draw2d.ButtCap)
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gc.SetLineJoin(draw2d.RoundJoin)
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gc.SetLineWidth(height / 50)
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gc.MoveTo(x+sx*60.0, y)
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gc.LineTo(x+sx*60.0, y)
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gc.LineTo(x+sx*162, y+sy*205)
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gc.RLineTo(sx*-102.4, 0.0)
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gc.CubicCurveTo(x+sx*-17, y+sy*205, x+sx*-17, y+sy*103, x+sx*60.0, y+sy*103.0)
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gc.Stroke()
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gc.SetLineDash(nil, 0.0)
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}
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func Arc(gc draw2d.GraphicContext, xc, yc, width, height float64) {
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// draw an arc
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xc += width / 2
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yc += height / 2
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radiusX, radiusY := width/2, height/2
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startAngle := 45 * (math.Pi / 180.0) /* angles are specified */
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angle := 135 * (math.Pi / 180.0) /* clockwise in radians */
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gc.SetLineWidth(width / 10)
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gc.SetLineCap(draw2d.ButtCap)
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gc.SetStrokeColor(image.Black)
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gc.MoveTo(xc+math.Cos(startAngle)*radiusX, yc+math.Sin(startAngle)*radiusY)
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gc.ArcTo(xc, yc, radiusX, radiusY, startAngle, angle)
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gc.Stroke()
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// fill a circle
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gc.SetStrokeColor(color.NRGBA{255, 0x33, 0x33, 0x80})
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gc.SetFillColor(color.NRGBA{255, 0x33, 0x33, 0x80})
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gc.SetLineWidth(width / 20)
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gc.MoveTo(xc, yc)
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gc.LineTo(xc+math.Cos(startAngle)*radiusX, yc+math.Sin(startAngle)*radiusY)
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gc.MoveTo(xc, yc)
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gc.LineTo(xc-radiusX, yc)
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gc.Stroke()
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gc.MoveTo(xc, yc)
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gc.ArcTo(xc, yc, width/10.0, height/10.0, 0, 2*math.Pi)
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gc.Fill()
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}
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func ArcNegative(gc draw2d.GraphicContext, xc, yc, width, height float64) {
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xc += width / 2
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yc += height / 2
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radiusX, radiusY := width/2, height/2
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startAngle := 45.0 * (math.Pi / 180.0) /* angles are specified */
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angle := -225 * (math.Pi / 180.0) /* clockwise in radians */
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gc.SetLineWidth(width / 10)
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gc.SetLineCap(draw2d.ButtCap)
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gc.SetStrokeColor(image.Black)
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gc.ArcTo(xc, yc, radiusX, radiusY, startAngle, angle)
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gc.Stroke()
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// fill a circle
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gc.SetStrokeColor(color.NRGBA{255, 0x33, 0x33, 0x80})
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gc.SetFillColor(color.NRGBA{255, 0x33, 0x33, 0x80})
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gc.SetLineWidth(width / 20)
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gc.MoveTo(xc, yc)
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gc.LineTo(xc+math.Cos(startAngle)*radiusX, yc+math.Sin(startAngle)*radiusY)
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gc.MoveTo(xc, yc)
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gc.LineTo(xc-radiusX, yc)
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gc.Stroke()
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gc.ArcTo(xc, yc, width/10.0, height/10.0, 0, 2*math.Pi)
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gc.Fill()
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}
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func CubicCurve(gc draw2d.GraphicContext, x, y, width, height float64) {
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sx, sy := width/162, height/205
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x0, y0 := x, y+sy*100.0
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x1, y1 := x+sx*75, y+sy*205
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x2, y2 := x+sx*125, y
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x3, y3 := x+sx*205, y+sy*100
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gc.SetStrokeColor(image.Black)
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gc.SetFillColor(color.NRGBA{0xAA, 0xAA, 0xAA, 0xFF})
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gc.SetLineWidth(width / 10)
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gc.MoveTo(x0, y0)
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gc.CubicCurveTo(x1, y1, x2, y2, x3, y3)
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gc.Stroke()
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gc.SetStrokeColor(color.NRGBA{0xFF, 0x33, 0x33, 0x88})
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gc.SetLineWidth(width / 20)
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// draw segment of curve
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gc.MoveTo(x0, y0)
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gc.LineTo(x1, y1)
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gc.LineTo(x2, y2)
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gc.LineTo(x3, y3)
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gc.Stroke()
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}
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func FillString(gc draw2d.GraphicContext, x, y, width, height float64) {
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sx, sy := width/100, height/100
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gc.Save()
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gc.SetStrokeColor(image.Black)
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gc.SetLineWidth(1)
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draw2d.RoundRect(gc, x+sx*5, y+sy*5, x+sx*95, y+sy*95, sx*10, sy*10)
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gc.FillStroke()
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gc.SetFillColor(image.Black)
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gc.SetFontSize(height / 6)
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gc.Translate(x+sx*6, y+sy*52)
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gc.SetFontData(draw2d.FontData{"luxi", draw2d.FontFamilyMono, draw2d.FontStyleBold | draw2d.FontStyleItalic})
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w := gc.FillString("cou")
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gc.Translate(w+sx, 0)
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left, top, right, bottom := gc.GetStringBounds("cou")
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gc.SetStrokeColor(color.NRGBA{255, 0x33, 0x33, 0x80})
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draw2d.Rect(gc, left, top, right, bottom)
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gc.SetLineWidth(height / 20)
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gc.Stroke()
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gc.SetStrokeColor(color.NRGBA{0x33, 0x33, 0xff, 0xff})
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gc.SetLineWidth(height / 100)
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gc.StrokeString("cou")
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gc.Restore()
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}
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func FillStroke(gc draw2d.GraphicContext, x, y, width, height float64) {
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sx, sy := width/210, height/215
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gc.MoveTo(x+sx*113.0, y)
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gc.LineTo(x+sx*215.0, y+sy*215)
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gc.RLineTo(sx*-100, 0)
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gc.CubicCurveTo(x+sx*35, y+sy*215, x+sx*35, y+sy*113, x+sx*113.0, y+sy*113)
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gc.Close()
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gc.MoveTo(x+sx*50.0, y)
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gc.RLineTo(sx*51.2, sy*51.2)
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gc.RLineTo(sx*-51.2, sy*51.2)
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gc.RLineTo(sx*-51.2, sy*-51.2)
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gc.Close()
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gc.SetLineWidth(width / 20.0)
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gc.SetFillColor(color.NRGBA{0, 0, 0xFF, 0xFF})
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gc.SetStrokeColor(image.Black)
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gc.FillStroke()
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}
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func FillStyle(gc draw2d.GraphicContext, x, y, width, height float64) {
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sx, sy := width/232, height/220
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gc.SetLineWidth(width / 40)
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draw2d.Rect(gc, x+sx*0, y+sy*12, x+sx*232, y+sy*70)
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wheel1 := new(draw2d.PathStorage)
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wheel1.ArcTo(x+sx*52, y+sy*70, sx*40, sy*40, 0, 2*math.Pi)
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wheel2 := new(draw2d.PathStorage)
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wheel2.ArcTo(x+sx*180, y+sy*70, sx*40, sy*40, 0, -2*math.Pi)
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gc.SetFillRule(draw2d.FillRuleEvenOdd)
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gc.SetFillColor(color.NRGBA{0, 0xB2, 0, 0xFF})
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gc.SetStrokeColor(image.Black)
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gc.FillStroke(wheel1, wheel2)
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draw2d.Rect(gc, x, y+sy*140, x+sx*232, y+sy*198)
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wheel1 = new(draw2d.PathStorage)
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wheel1.ArcTo(x+sx*52, y+sy*198, sx*40, sy*40, 0, 2*math.Pi)
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wheel2 = new(draw2d.PathStorage)
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wheel2.ArcTo(x+sx*180, y+sy*198, sx*40, sy*40, 0, -2*math.Pi)
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gc.SetFillRule(draw2d.FillRuleWinding)
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gc.SetFillColor(color.NRGBA{0, 0, 0xE5, 0xFF})
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gc.FillStroke(wheel1, wheel2)
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}
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func PathTransform(gc draw2d.GraphicContext, x, y, width, height float64) {
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gc.Save()
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gc.SetLineWidth(width / 10)
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gc.Translate(x+width/2, y+height/2)
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gc.Scale(1, 4)
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gc.ArcTo(0, 0, width/8, height/8, 0, math.Pi*2)
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gc.Close()
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gc.Stroke()
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gc.Restore()
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}
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func Star(gc draw2d.GraphicContext, x, y, width, height float64) {
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gc.Save()
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gc.Translate(x+width/2, y+height/2)
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gc.SetLineWidth(width / 40)
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for i := 0.0; i < 360; i = i + 10 { // Go from 0 to 360 degrees in 10 degree steps
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gc.Save() // Keep rotations temporary
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gc.Rotate(i * (math.Pi / 180.0)) // Rotate by degrees on stack from 'for'
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gc.MoveTo(0, 0)
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gc.LineTo(width/2, 0)
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gc.Stroke()
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gc.Restore()
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}
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gc.Restore()
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}
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func Draw(gc draw2d.GraphicContext, width, height float64) {
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mx, my := width*0.025, height*0.025 // margin
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dx, dy := (width-2*mx)/4, (height-2*my)/3
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w, h := dx-2*mx, dy-2*my
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x0, y := 2*mx, 2*my
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x := x0
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Bubble(gc, x, y, w, h)
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x += dx
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CurveRectangle(gc, x, y, w, h, color.NRGBA{0x80, 0, 0, 0x80}, color.NRGBA{0x80, 0x80, 0xFF, 0xFF})
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x += dx
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Dash(gc, x, y, w, h)
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x += dx
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Arc(gc, x, y, w, h)
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x = x0
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y += dy
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ArcNegative(gc, x, y, w, h)
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x += dx
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CubicCurve(gc, x, y, w, h)
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x += dx
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FillString(gc, x, y, w, h)
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x += dx
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FillStroke(gc, x, y, w, h)
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x = x0
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y += dy
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FillStyle(gc, x, y, w, h)
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x += dx
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PathTransform(gc, x, y, w, h)
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x += dx
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Star(gc, x, y, w, h)
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x += dx
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gopher2.Draw(gc, x, y, w, h/2)
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}
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@ -0,0 +1,106 @@
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// Copyright 2010 The draw2d Authors. All rights reserved.
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// created: 21/11/2010 by Laurent Le Goff
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// Package gopher2 draws a gopher avatar based on a svg of:
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// https://github.com/golang-samples/gopher-vector/
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package gopher2
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import (
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"image"
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"image/color"
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"math"
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"github.com/llgcode/draw2d"
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"github.com/llgcode/draw2d/samples"
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)
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// Main draws a rotated face of the gopher. Afterwards it returns
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// the filename. This should only be used during testing.
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func Main(gc draw2d.GraphicContext, ext string) (string, error) {
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gc.SetStrokeColor(image.Black)
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gc.SetFillColor(image.White)
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gc.Save()
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// Draw a (partial) gopher
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gc.Translate(-65, 65)
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gc.Rotate(-30 * (math.Pi / 180.0))
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Draw(gc, 48, 48, 240, 72)
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gc.Restore()
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// Return the output filename
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return samples.Output("gopher2", ext), nil
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}
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// Draw a gopher head (not rotated)
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func Draw(gc draw2d.GraphicContext, x, y, w, h float64) {
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h23 := (h * 2) / 3
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blf := color.RGBA{0, 0, 0, 0xff} // black
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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)
|
||||
gc.CubicCurveTo(x, y+h*1.05, x+w/2, y-h, x+w, y+h*1.05)
|
||||
gc.Close()
|
||||
gc.SetFillColor(brb)
|
||||
gc.Fill()
|
||||
// rectangle head bottom
|
||||
draw2d.RoundRect(gc, x, y+h, x+w, y+h+h, w/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()
|
||||
}
|
||||
|
|
@ -8,7 +8,9 @@ import (
|
|||
"github.com/llgcode/draw2d"
|
||||
"github.com/llgcode/draw2d/samples/android"
|
||||
"github.com/llgcode/draw2d/samples/frameimage"
|
||||
"github.com/llgcode/draw2d/samples/geometry"
|
||||
"github.com/llgcode/draw2d/samples/gopher"
|
||||
"github.com/llgcode/draw2d/samples/gopher2"
|
||||
"github.com/llgcode/draw2d/samples/helloworld"
|
||||
"github.com/llgcode/draw2d/samples/line"
|
||||
"github.com/llgcode/draw2d/samples/linecapjoin"
|
||||
|
|
@ -19,10 +21,22 @@ func TestSampleAndroid(t *testing.T) {
|
|||
test(t, android.Main)
|
||||
}
|
||||
|
||||
func TestSampleGeometry(t *testing.T) {
|
||||
// Set the global folder for searching fonts
|
||||
// The pdf backend needs for every ttf file its corresponding
|
||||
// json/.z file which is generated by gofpdf/makefont.
|
||||
draw2d.SetFontFolder("resource/font")
|
||||
test(t, geometry.Main)
|
||||
}
|
||||
|
||||
func TestSampleGopher(t *testing.T) {
|
||||
test(t, gopher.Main)
|
||||
}
|
||||
|
||||
func TestSampleGopher2(t *testing.T) {
|
||||
test(t, gopher2.Main)
|
||||
}
|
||||
|
||||
func TestSampleHelloWorld(t *testing.T) {
|
||||
// Set the global folder for searching fonts
|
||||
draw2d.SetFontFolder("resource/font")
|
||||
|
|
|
|||
Loading…
Reference in New Issue