//构建Grid布局并返回布局大小
public static Vector2 UF_BuildLayoutGrid(RectTransform rectTransform, LayoutCorner alignement, Vector2 padding, Vector2 space, int constraint)
{
int curConstraint = 0;
int childNum = rectTransform.childCount;
float curWidth = padding.x;
float curHeight = 0;
float maxWidth = padding.x;
float maxHeight = padding.y;
bool rawH = false;
Vector2 anchor = UF_GetAnchor(alignement);
Vector2 side = UF_GetAnchorSide(alignement);
int ctVal = constraint - 1;
RectTransform rectTrans = null;
for (int k = 0; k < childNum;)
{
rectTrans = rectTransform.GetChild(k++) as RectTransform;
if (rectTrans != null && rectTrans.gameObject.activeSelf && rectTrans.tag != DefineTag.IngoreLayout)
{
rectTrans.anchorMax = anchor;
rectTrans.anchorMin = anchor;
rectTrans.pivot = anchor;
if (rectTrans.rect.height > curHeight)
{
curHeight = rectTrans.rect.height;
}
rectTrans.anchoredPosition = new Vector2(curWidth * side.x, -maxHeight * side.y);
curWidth += rectTrans.rect.width + space.x;
if (maxWidth < curWidth)
{
maxWidth = curWidth;
}
rawH = false;
curConstraint++;
if (curConstraint > ctVal)
{
rawH = true;
maxHeight += curHeight + space.y;
curConstraint = 0;
curWidth = padding.x;
curHeight = 0;
}
}
}
maxWidth += padding.x - space.x;
if (rawH)
{
maxHeight += padding.y - space.y;
}
else
{
maxHeight += padding.y + curHeight;
}
return(new Vector2(maxWidth, maxHeight));
}
static Vector2 UF_GetAnchor(LayoutCorner alignement)
{
switch (alignement)
{
case LayoutCorner.UpperLeft: return(new Vector2(0, 1));
case LayoutCorner.UpperRight: return(new Vector2(1, 1));
case LayoutCorner.LowerLeft: return(new Vector2(0, 0));
case LayoutCorner.LowerRight: return(new Vector2(1, 0));
}
return(new Vector2(0, 1));
}
protected virtual void DrawFields()
{
UIGrid grid = target as UIGrid;
int constraint = EditorGUILayout.IntField("Constraint", grid.constraint);
Vector2 padding = EditorGUILayout.Vector2Field("Padding", grid.padding);
Vector2 space = EditorGUILayout.Vector2Field("Space", grid.space);
Vector2 cellSize = EditorGUILayout.Vector2Field("CellSize", grid.cellSize);
LayoutCorner alignement = (LayoutCorner)EditorGUILayout.EnumPopup("Alignement", grid.alignement);
SizeFitterType fitterType = (SizeFitterType)EditorGUILayout.EnumPopup("SizeFitter", grid.fitterType);
bool fixedCellSize = EditorGUILayout.Toggle("FixedCellSize", grid.fixedCellSize);
GUILayout.BeginHorizontal();
string prefabUIName = EditorGUILayout.TextField("Prefab UI", grid.prefabUI, GUILayout.Height(20));
if (m_PrefabUI == null || m_PrefabUI.name != prefabUIName)
{
m_PrefabUI = GetTargetUIPrefab(prefabUIName);
}
Rect rectbox = GUILayoutUtility.GetRect(16, 16, GUI.skin.box);
if (m_PrefabUI != null)
{
GUI.Box(rectbox, EditorGUIUtility.IconContent("lightMeter/greenLight"));
EditorTools.ClickAndPingObject(rectbox, m_PrefabUI);
GUI.backgroundColor = Color.blue;
if (GUILayout.Button("G", GUILayout.Width(18), GUILayout.Height(18)))
{
var temp = AssetDatabase.LoadAssetAtPath <GameObject>(string.Format("Assets/AssetBases/PrefabAssets/ui/{0}.prefab", prefabUIName));
if (temp != null)
{
var item = Object.Instantiate(temp);
item.name = temp.name;
item.transform.parent = grid.transform;
item.transform.localScale = Vector3.one;
}
}
GUI.backgroundColor = Color.red;
if (GUILayout.Button("C", GUILayout.Width(18), GUILayout.Height(18)))
{
EditorTools.DestroyChild(grid.gameObject);
}
GUI.backgroundColor = Color.white;
}
GUILayout.EndHorizontal();
if (GUI.changed)
{
EditorTools.RegisterUndo("UIGrid", grid);
grid.prefabUI = prefabUIName;
grid.constraint = constraint;
grid.padding = padding;
grid.space = space;
grid.cellSize = cellSize;
grid.alignement = alignement;
grid.fixedCellSize = fixedCellSize;
grid.fitterType = fitterType;
EditorTools.SetDirty(grid);
}
}
