private static void DrawUIDummyGizmo(UIDummy component, GizmoType gizmoType)
{
var gameObject = component?.gameObject;
if (gameObject == null)
{
return;
}
if (!(CanvasUtil.TryGetRootCanvas(gameObject, out var canvas) && CanvasUtil.TryGetRectTransform(gameObject, out var rect)))
{
return;
}
var canvasRect = CanvasUtil.GetCanvasRect(rect);
var center = canvasRect.Center;
var mat4x4 = canvas.transform.localToWorldMatrix;
foreach (var dummy in component.Dummys)
{
if (dummy == null)
{
continue;
}
Vector3 offset = dummy.Offset;
DrawDummyCross(mat4x4, center + offset, dummy.AliasName, Color.red);
}
}
/// <summary>
/// 画当前UI单元的辅助线
/// </summary>
private static void DrawElementGuideline()
{
if (!(HelperSettings.GridVisible && HelperSettings.GuideVisible && SnapHelper.SelectedUIElement != null))
{
return;
}
var color = HelperSettings.GuideColor;
var canvasRect = CanvasUtil.GetCanvasRect(SnapHelper.SelectedUIElement);
const float MAX = 100000f;
const float MIN = -100000f;
var oldMatrix = Gizmos.matrix;
Gizmos.color = color;
Gizmos.matrix = SnapHelper.SelectedRootCanvas.transform.localToWorldMatrix;
var rect = canvasRect.Rect;
Gizmos.DrawLine(new Vector3(rect.xMin, MIN, 0f), new Vector3(rect.xMin, MAX, 0f));
Gizmos.DrawLine(new Vector3(rect.xMax, MIN, 0f), new Vector3(rect.xMax, MAX, 0f));
Gizmos.DrawLine(new Vector3(MIN, rect.yMin, 0f), new Vector3(MAX, rect.yMin, 0f));
Gizmos.DrawLine(new Vector3(MIN, rect.yMax, 0f), new Vector3(MAX, rect.yMax, 0f));
Gizmos.matrix = oldMatrix;
}
private bool GetCorrectElementPosition(out CanvasRect canvasRect, out Vector3 position)
{
canvasRect = new CanvasRect();
position = Vector3.zero;
if (!HelperSettings.GridSnap)
{
return(false);
}
canvasRect = CanvasUtil.GetCanvasRect(SelectedUIElement);
var rect = canvasRect.Rect;
var topLeft = new Vector3(rect.xMin, rect.yMax, 0);
var gridSizeX = HelperSettings.GridSize.x;
var gridSizeY = HelperSettings.GridSize.y;
var canvasHalfSize = SelectedRootCanvas.pixelRect.size * 0.5f;
var tx = Mathf.Clamp(Convert.ToInt32(Mathf.Round(topLeft.x / gridSizeX) * gridSizeX), -canvasHalfSize.x, canvasHalfSize.x);
var ty = Mathf.Clamp(Convert.ToInt32(Mathf.Round(topLeft.y / gridSizeY) * gridSizeY), -canvasHalfSize.y, canvasHalfSize.y);
position = new Vector3(tx, ty, 0);
return(true);
}