feat: primitive styling

2026-03-07 17:01:22 +02:00
parent 477e656008
commit e4b956232f
18 changed files with 1264 additions and 175 deletions
@@ -0,0 +1,110 @@
+package world
+
+import (
+	"image/color"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestAddPoint_DefaultsPriorityAndStyle(t *testing.T) {
+	t.Parallel()
+
+	w := NewWorld(10, 10)
+	id, err := w.AddPoint(1, 1)
+	require.NoError(t, err)
+
+	obj := w.objects[id].(Point)
+	require.Equal(t, DefaultPriorityPoint, obj.Priority)
+	require.Equal(t, StyleIDDefaultPoint, obj.StyleID)
+}
+
+func TestAddCircle_DefaultsPriorityAndStyle(t *testing.T) {
+	t.Parallel()
+
+	w := NewWorld(10, 10)
+	id, err := w.AddCircle(1, 1, 1)
+	require.NoError(t, err)
+
+	obj := w.objects[id].(Circle)
+	require.Equal(t, DefaultPriorityCircle, obj.Priority)
+	require.Equal(t, StyleIDDefaultCircle, obj.StyleID)
+}
+
+func TestAddLine_DefaultsPriorityAndStyle(t *testing.T) {
+	t.Parallel()
+
+	w := NewWorld(10, 10)
+	id, err := w.AddLine(1, 1, 2, 2)
+	require.NoError(t, err)
+
+	obj := w.objects[id].(Line)
+	require.Equal(t, DefaultPriorityLine, obj.Priority)
+	require.Equal(t, StyleIDDefaultLine, obj.StyleID)
+}
+
+func TestAddStyleLine_ThenUseStyleID(t *testing.T) {
+	t.Parallel()
+
+	w := NewWorld(10, 10)
+
+	width := 5.0
+	ov := StyleOverride{StrokeWidthPx: &width}
+	styleID := w.AddStyleLine(ov)
+
+	id, err := w.AddLine(1, 1, 2, 2, LineWithStyleID(styleID), LineWithPriority(777))
+	require.NoError(t, err)
+
+	obj := w.objects[id].(Line)
+	require.Equal(t, 777, obj.Priority)
+	require.Equal(t, styleID, obj.StyleID)
+
+	s, ok := w.styles.Get(styleID)
+	require.True(t, ok)
+	require.Equal(t, 5.0, s.StrokeWidthPx)
+}
+
+func TestAddPoint_WithOverride_CreatesDerivedStyle(t *testing.T) {
+	t.Parallel()
+
+	w := NewWorld(10, 10)
+
+	newRadius := 9.0
+	ov := StyleOverride{PointRadiusPx: &newRadius}
+
+	id, err := w.AddPoint(1, 1, PointWithStyleOverride(ov))
+	require.NoError(t, err)
+
+	obj := w.objects[id].(Point)
+	require.NotEqual(t, StyleIDDefaultPoint, obj.StyleID)
+
+	s, ok := w.styles.Get(obj.StyleID)
+	require.True(t, ok)
+	require.Equal(t, 9.0, s.PointRadiusPx)
+}
+
+func TestExplicitStyleID_WinsOverOverride(t *testing.T) {
+	t.Parallel()
+
+	w := NewWorld(10, 10)
+
+	red := color.RGBA{R: 255, A: 255}
+	styleID := w.AddStyleCircle(StyleOverride{FillColor: red})
+
+	// Try to override radius in options too; StyleID must win, override must be ignored.
+	width := 123.0
+	id, err := w.AddCircle(2, 2, 1,
+		CircleWithStyleID(styleID),
+		CircleWithStyleOverride(StyleOverride{StrokeWidthPx: &width}),
+	)
+	require.NoError(t, err)
+
+	obj := w.objects[id].(Circle)
+	require.Equal(t, styleID, obj.StyleID)
+
+	s, ok := w.styles.Get(styleID)
+	require.True(t, ok)
+	require.Equal(t, red, s.FillColor)
+	// width override must not affect styleID.
+	require.NotEqual(t, 123.0, s.StrokeWidthPx)
+}