Files
gio/internal/rendertest/clip_test.go
T
Sebastien Binet 7054ba622a op/clip: implement arc path
Signed-off-by: Sebastien Binet <s@sbinet.org>
2020-08-27 14:46:02 +02:00

104 lines
2.6 KiB
Go

package rendertest
import (
"math"
"testing"
"gioui.org/f32"
"gioui.org/op"
"gioui.org/op/clip"
"gioui.org/op/paint"
"golang.org/x/image/colornames"
)
func TestPaintRect(t *testing.T) {
run(t, func(o *op.Ops) {
paint.ColorOp{Color: colornames.Red}.Add(o)
paint.PaintOp{Rect: f32.Rect(0, 0, 50, 50)}.Add(o)
}, func(r result) {
r.expect(0, 0, colornames.Red)
r.expect(49, 0, colornames.Red)
r.expect(50, 0, colornames.White)
r.expect(10, 50, colornames.White)
})
}
func TestPaintClippedRect(t *testing.T) {
run(t, func(o *op.Ops) {
paint.ColorOp{Color: colornames.Red}.Add(o)
clip.RRect{Rect: f32.Rect(25, 25, 60, 60)}.Add(o)
paint.PaintOp{Rect: f32.Rect(0, 0, 50, 50)}.Add(o)
}, func(r result) {
r.expect(0, 0, colornames.White)
r.expect(24, 35, colornames.White)
r.expect(25, 35, colornames.Red)
r.expect(50, 0, colornames.White)
r.expect(10, 50, colornames.White)
})
}
func TestPaintClippedCirle(t *testing.T) {
run(t, func(o *op.Ops) {
paint.ColorOp{Color: colornames.Red}.Add(o)
r := float32(10)
clip.RRect{Rect: f32.Rect(20, 20, 40, 40), SE: r, SW: r, NW: r, NE: r}.Add(o)
paint.PaintOp{Rect: f32.Rect(0, 0, 30, 50)}.Add(o)
}, func(r result) {
r.expect(21, 21, colornames.White)
r.expect(25, 30, colornames.Red)
r.expect(31, 30, colornames.White)
})
}
func TestPaintArc(t *testing.T) {
run(t, func(o *op.Ops) {
p := new(clip.Path)
p.Begin(o)
p.Move(f32.Pt(0, 20))
p.Line(f32.Pt(10, 0))
p.Arc(f32.Pt(10, 0), f32.Pt(40, 0), math.Pi)
p.Line(f32.Pt(30, 0))
p.Line(f32.Pt(0, 25))
p.Arc(f32.Pt(-10, 5), f32.Pt(10, 15), -math.Pi)
p.Line(f32.Pt(0, 25))
p.Line(f32.Pt(-10, 0))
p.Arc(f32.Pt(-10, 0), f32.Pt(-40, 0), -math.Pi)
p.Line(f32.Pt(-10, 0))
p.Line(f32.Pt(0, -10))
p.Arc(f32.Pt(-10, -20), f32.Pt(10, -5), math.Pi)
p.Line(f32.Pt(0, -10))
p.Line(f32.Pt(-50, 0))
p.End().Add(o)
paint.ColorOp{Color: colornames.Red}.Add(o)
paint.PaintOp{Rect: f32.Rect(0, 0, 128, 128)}.Add(o)
}, func(r result) {
r.expect(0, 0, colornames.White)
r.expect(0, 25, colornames.Red)
r.expect(0, 15, colornames.White)
})
}
func TestPaintTexture(t *testing.T) {
run(t, func(o *op.Ops) {
squares.Add(o)
paint.PaintOp{Rect: f32.Rect(0, 0, 80, 80)}.Add(o)
}, func(r result) {
r.expect(0, 0, colornames.Blue)
r.expect(79, 10, colornames.Green)
r.expect(80, 0, colornames.White)
r.expect(10, 80, colornames.White)
})
}
func TestPaintClippedTexture(t *testing.T) {
run(t, func(o *op.Ops) {
squares.Add(o)
clip.RRect{Rect: f32.Rect(0, 0, 40, 40)}.Add(o)
paint.PaintOp{Rect: f32.Rect(0, 0, 80, 80)}.Add(o)
}, func(r result) {
r.expect(40, 40, colornames.White)
r.expect(25, 35, colornames.Blue)
})
}