forked from joejulian/gio
Walter Werner SCHNEIDER
0c145b3815
After moving the pen, the next action should update the bounds for the start position. References: https://todo.sr.ht/~eliasnaur/gio/451 Signed-off-by: Walter Werner SCHNEIDER <contact@schnwalter.eu>
107 lines
2.8 KiB
Go
107 lines
2.8 KiB
Go
// SPDX-License-Identifier: Unlicense OR MIT
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package clip
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import (
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"gioui.org/f32"
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"gioui.org/op"
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"math"
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"testing"
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)
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func TestPath_MoveTo_LineTo(t *testing.T) {
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var ops op.Ops
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p := Path{}
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p.Begin(&ops)
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startPoint := f32.Pt(32, 32)
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endPoint := f32.Pt(64, 64)
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p.MoveTo(startPoint)
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p.LineTo(endPoint)
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pathSpec := p.End()
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minPoint := f32.Pt(32, 32)
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maxPoint := f32.Pt(64, 64)
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if pathSpec.bounds.Min == pathSpec.bounds.Max {
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t.Errorf("zero path")
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}
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if pathSpec.bounds.Min != minPoint.Round() {
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t.Errorf("pathSpec.bounds.Min = %v, want %v", pathSpec.bounds.Min, minPoint)
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}
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if pathSpec.bounds.Max != maxPoint.Round() {
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t.Errorf("pathSpec.bounds.Max = %v, want %v", pathSpec.bounds.Max, maxPoint)
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}
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}
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func TestPath_MoveTo_QuadTo(t *testing.T) {
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var ops op.Ops
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p := Path{}
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p.Begin(&ops)
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startPoint := f32.Pt(32, 32)
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midPoint := f32.Pt(60, 60)
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p.MoveTo(startPoint)
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p.QuadTo(midPoint.Sub(f32.Pt(-4, 0)), midPoint.Sub(f32.Pt(0, -4)))
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pathSpec := p.End()
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minPoint := f32.Pt(32, 32)
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maxPoint := f32.Pt(64, 64)
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if pathSpec.bounds.Min == pathSpec.bounds.Max {
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t.Errorf("zero path")
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}
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if pathSpec.bounds.Min != minPoint.Round() {
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t.Errorf("pathSpec.bounds.Min = %v, want %v", pathSpec.bounds.Min, minPoint)
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}
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if pathSpec.bounds.Max != maxPoint.Round() {
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t.Errorf("pathSpec.bounds.Max = %v, want %v", pathSpec.bounds.Max, maxPoint)
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}
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}
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func TestPath_MoveTo_ArcTo(t *testing.T) {
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// We need a tolerance here because of rounding errors.
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tolerance := f32.Pt(1, 1)
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var ops op.Ops
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p := Path{}
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p.Begin(&ops)
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arcStartPoint := f32.Pt(48, 32)
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arcCenterPoint := f32.Pt(48, 48)
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p.MoveTo(arcStartPoint)
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p.ArcTo(arcCenterPoint, arcCenterPoint, math.Pi*2)
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pathSpec := p.End()
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minPoint := f32.Pt(32, 32).Sub(tolerance).Round()
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maxPoint := f32.Pt(64, 64).Add(tolerance).Round()
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if pathSpec.bounds.Min == pathSpec.bounds.Max {
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t.Errorf("zero path")
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}
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if pathSpec.bounds.Min.X < minPoint.X || pathSpec.bounds.Min.Y < minPoint.Y {
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t.Errorf("pathSpec.bounds.Min = %v, want %v", pathSpec.bounds.Min, minPoint)
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}
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if pathSpec.bounds.Max.X > maxPoint.X || pathSpec.bounds.Max.Y > maxPoint.Y {
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t.Errorf("pathSpec.bounds.Max = %v, want %v", pathSpec.bounds.Max, maxPoint)
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}
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}
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func TestPath_MoveTo_CubeTo(t *testing.T) {
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var ops op.Ops
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p := Path{}
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p.Begin(&ops)
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startPoint := f32.Pt(32, 32)
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midPoint := f32.Pt(48, 48)
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endPoint := f32.Pt(64, 64)
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p.MoveTo(startPoint)
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p.CubeTo(midPoint.Sub(f32.Pt(-4, 0)), midPoint.Sub(f32.Pt(0, -4)), endPoint)
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pathSpec := p.End()
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minPoint := f32.Pt(32, 32)
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maxPoint := f32.Pt(64, 64)
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if pathSpec.bounds.Min == pathSpec.bounds.Max {
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t.Errorf("zero path")
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}
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if pathSpec.bounds.Min != minPoint.Round() {
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t.Errorf("pathSpec.bounds.Min = %v, want %v", pathSpec.bounds.Min, minPoint)
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}
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if pathSpec.bounds.Max != maxPoint.Round() {
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t.Errorf("pathSpec.bounds.Max = %v, want %v", pathSpec.bounds.Max, maxPoint)
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}
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}
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