private void DrawStairPreview(Rect rect)
{
// Calculate an appropriate world space to UI scale for the diagram
float depthTotal = stepDepthProp.floatValue * 2 + stepDepthSpacingProp.floatValue;
float heightTotal = stepHeightProp.floatValue * 2 + stepHeightSpacingProp.floatValue;
float uiScale = Mathf.Min(150 / depthTotal, 60 / heightTotal);
// Offset the center of the diagram to fit better
Vector2 centerOffset = rect.center + new Vector2(0, 10);
// Draw white background
//Graphics.DrawTexture(rect, EditorGUIUtility.whiteTexture);
// Step size and spacing in UI space
Vector2 stepUISize = new Vector2(stepDepthProp.floatValue * uiScale, stepHeightProp.floatValue * uiScale);
Vector2 stepUISpacing = new Vector2(stepDepthSpacingProp.floatValue * uiScale, stepHeightSpacingProp.floatValue * uiScale);
// Tint boxes blue
GUI.color = new Color(0, 0.7f, 1f);
// Draw bottom left step
Rect stepRect1 = new Rect(centerOffset.x, centerOffset.y, stepUISize.x, stepUISize.y);
stepRect1.center += new Vector2(-stepUISize.x - stepUISpacing.x / 2f, stepUISpacing.y / 2f);
GUI.Box(stepRect1, new GUIContent());
// Draw top right step
Rect stepRect2 = new Rect(centerOffset.x, centerOffset.y, stepUISize.x, stepUISize.y);
stepRect2.center += new Vector2(stepUISpacing.x / 2f, -stepUISize.y - stepUISpacing.y / 2f);
GUI.Box(stepRect2, new GUIContent());
// Draw depth spacing lines
GUI.color = Color.grey;
Rect drawRect = new Rect(stepRect1.xMax, stepRect2.yMin - 20, 1, 18);
GUI.DrawTexture(drawRect, EditorGUIUtility.whiteTexture);
drawRect = new Rect(stepRect2.xMin, stepRect2.yMin - 20, 1, 18);
GUI.DrawTexture(drawRect, EditorGUIUtility.whiteTexture);
// Draw height spacing lines
drawRect = new Rect(stepRect1.xMin - 20, stepRect1.yMin, 18, 1);
GUI.DrawTexture(drawRect, EditorGUIUtility.whiteTexture);
drawRect = new Rect(stepRect1.xMin - 20, stepRect2.yMax, 18, 1);
GUI.DrawTexture(drawRect, EditorGUIUtility.whiteTexture);
// Draw text annotations
SabreGUILayout.DrawAnchoredLabel(stepDepthProp.floatValue.ToString(), new Vector2(stepRect1.center.x, stepRect1.yMax), new Vector2(30, 20), TextAnchor.UpperCenter);
SabreGUILayout.DrawAnchoredLabel(stepHeightProp.floatValue.ToString(), new Vector2(stepRect1.xMax, stepRect1.center.y), new Vector2(30, 20), TextAnchor.MiddleLeft);
SabreGUILayout.DrawAnchoredLabel(stepDepthSpacingProp.floatValue.ToString(), new Vector2((stepRect1.xMax + stepRect2.xMin) / 2f, stepRect2.yMin - 20), new Vector2(30, 20), TextAnchor.LowerCenter);
SabreGUILayout.DrawAnchoredLabel(stepHeightSpacingProp.floatValue.ToString(), new Vector2(stepRect1.xMin - 20, (stepRect1.yMin + stepRect2.yMax) / 2f), new Vector2(30, 20), TextAnchor.MiddleRight);
// Reset GUI tints for rest of UI
GUI.color = Color.white;
}