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112 行
3.1 KiB
112 行
3.1 KiB
using System;
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using UnityEngine;
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namespace UnityEditor.Experimental.Rendering.Universal.Path2D.GUIFramework
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{
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internal abstract class GUIAction
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{
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private int m_ID = -1;
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public Func<IGUIState, GUIAction, bool> enable;
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public Func<IGUIState, GUIAction, bool> enableRepaint;
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public Func<IGUIState, GUIAction, bool> repaintOnMouseMove;
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public Action<IGUIState, GUIAction> onPreRepaint;
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public Action<IGUIState, GUIAction> onRepaint;
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public int ID
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{
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get { return m_ID; }
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}
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public void OnGUI(IGUIState guiState)
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{
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m_ID = guiState.GetControlID(GetType().GetHashCode(), FocusType.Passive);
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if (guiState.hotControl == 0 && IsEnabled(guiState) && CanTrigger(guiState) && GetTriggerContidtion(guiState))
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{
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guiState.hotControl = ID;
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OnTrigger(guiState);
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}
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if (guiState.hotControl == ID)
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{
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if (GetFinishContidtion(guiState))
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{
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OnFinish(guiState);
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guiState.hotControl = 0;
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}
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else
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{
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OnPerform(guiState);
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}
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}
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if (guiState.eventType == EventType.Repaint && IsRepaintEnabled(guiState))
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Repaint(guiState);
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}
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public bool IsEnabled(IGUIState guiState)
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{
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if (enable != null)
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return enable(guiState, this);
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return true;
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}
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public bool IsRepaintEnabled(IGUIState guiState)
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{
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if (!IsEnabled(guiState))
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return false;
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if (enableRepaint != null)
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return enableRepaint(guiState, this);
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return true;
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}
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public void PreRepaint(IGUIState guiState)
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{
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Debug.Assert(guiState.eventType == EventType.Repaint);
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if (IsEnabled(guiState) && onPreRepaint != null)
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onPreRepaint(guiState, this);
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}
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private void Repaint(IGUIState guiState)
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{
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Debug.Assert(guiState.eventType == EventType.Repaint);
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if (onRepaint != null)
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onRepaint(guiState, this);
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}
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internal bool IsRepaintOnMouseMoveEnabled(IGUIState guiState)
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{
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if (!IsEnabled(guiState) || !IsRepaintEnabled(guiState))
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return false;
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if (repaintOnMouseMove != null)
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return repaintOnMouseMove(guiState, this);
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return false;
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}
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protected abstract bool GetFinishContidtion(IGUIState guiState);
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protected abstract bool GetTriggerContidtion(IGUIState guiState);
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protected virtual bool CanTrigger(IGUIState guiState) { return true; }
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protected virtual void OnTrigger(IGUIState guiState)
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{
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}
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protected virtual void OnPerform(IGUIState guiState)
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{
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}
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protected virtual void OnFinish(IGUIState guiState)
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{
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}
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}
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}
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