public static void DrawGUI(ReorderableList reorderableList, GUIToggleTween toggleTween, string title)
{
using (new GUILayoutToggleAreaScope(toggleTween, title))
{
reorderableList.DoLayoutList();
}
}
public GUILayoutToggleAreaScope(GUIToggleTween tween, string text, Action action, GUIStyle style)
{
//计算要显示的大小
Rect lastRect = tween.lastRect;
lastRect.height = lastRect.height < 29 ? 29 : lastRect.height;
lastRect.height -= 29;
// t 时间
// b 开始值
// c 增量值 （结束值= 开始值 + 增量值）所以该值应该是（增量值 = 结束值 - 开始值）
// d 总时长
float pct = EaseCat.Quad.EaseOut2(0, 1, tween.value);
lastRect.height *= pct;
lastRect.height += 29;
lastRect.height = Mathf.Round(lastRect.height);
//显示区域布局、开始Area、BeginVertical计算真实大小
Rect gotLastRect = GUILayoutUtility.GetRect(new GUIContent(), style, GUILayout.Height(lastRect.height));
GUILayout.BeginArea(lastRect, style);
Rect newRect = EditorGUILayout.BeginVertical();
if (Event.current.type == EventType.Repaint || Event.current.type == EventType.ScrollWheel)
{
//计算真实大小
newRect.x = gotLastRect.x;
newRect.y = gotLastRect.y;
newRect.width = gotLastRect.width;
newRect.height += style.padding.top + style.padding.bottom;
tween.lastRect = newRect;
//计算插值
if (Event.current.type == EventType.Repaint)
{
float deltaTime = Time.realtimeSinceStartup - tween.lastUpdateTime;
tween.lastUpdateTime = Time.realtimeSinceStartup;
tween.value = Mathf.Clamp01(tween.isOpened
? tween.value + deltaTime / GUILayoutToggleAreaScopeConst.Tween_Duration
: tween.value - deltaTime / GUILayoutToggleAreaScopeConst.Tween_Duration);
}
}
using (new GUILayoutBeginHorizontalScope())
{
using (new GUIBackgroundColorScope(Color.gray.SetA(0.5f)))
{
if (GUILayout.Button(
string.Format("{0}{1}", tween.isOpened ? "▼" : "►", text),
GUIStyleConst.LabelBoldMiddleLeftStyle))
{
tween.isOpened = !tween.isOpened;
}
}
action?.Invoke();
}
GUILayout.Space(11);
}
public GUILayoutToggleAreaScope(GUIToggleTween tween, string text, Action action = null) : this(tween, text,
action,
EditorStyles.helpBox)
{
}
public static void DrawGUI(this ReorderableList self, GUIToggleTween toggleTween, string title)
{
ReorderableListUtil.DrawGUI(self, toggleTween, title);
}