原型2

__test__/FileSystem/FileSystem.test.ts

@@ -29,65 +29,55 @@ import * as THREE from 'three';
 创建对象如何撤销和重做?
 db.AppendEntity(ent);
 
+当我们删除对象时,尝试只对对象进行标记删除.
+当历史记录被优化时,我们尝试对删除的对象进行彻底删除
 
 */
 
 
 
-/**
- * 所有cad对象的基类
- * 
- * @class CADObject
- */
+//所有cad对象的基类
 class CADObject
 {
-    /**
-     * 
-     * 局部撤销
-     * 
-     * @param {number} type 
-     * @param {*} data 
-     * @memberof CADObject
-     */
-    ApplyPartialUndo(type: number, data: any)
+
+    //对象是否已经被删除
+    private isErase: boolean = false;
+
+    get IsErase(): boolean
     {
+        return this.isErase;
     }
 
-    DataIn(data)
-    {
+    //-----------------------------File-----------------------------
+    //对象应该实现dataIn和DataOut的方法,为了对象的序列化和反序列化
 
+    //对象从文件中读取数据,初始化自身
+    FileIn(file: CADFile)
+    {
     }
-    DataOut()
+    //对象将自身数据写入到文件.
+    FileOut(file: CADFile)
+    {
+    }
+    //局部撤销
+    ApplyPartialUndo(file: CADFile)
     {
-
     }
 }
 
 
-/**
- * cad文件数据
- * 
- * @class CADFile
- */
+//cad文件数据
 class CADFile
 {
-    databaseData;                           //图纸数据
-    objectDataCol: any[];                   //对象集合
-}
-
-class HistoricManage
-{
-    curIndex: number;                       //当前执行位置
-    historicRecord: CommandHistoricRecord[];//历史记录
 }
 
 //命令历史记录集合
-class CommandHistoricRecord
+class CommandHistoricRecord extends CADObject
 {
     //命令名称
     commandName: string;
     //历史记录表
-    historicCol: CommandHistoricRecord[];
+    historicCol: HistoricRecord[];
 }
 
 //历史记录
@@ -98,102 +88,114 @@ class HistoricRecord
     redoData: any;
 }
 
-/**
- * 
- * 
- * @class HistoryManager
- */
-class HistoryManager extends CADObject
-{
-
-    private curUndoIndex = -1;
-    //命令撤销数据列表
-    commandUndoData: { cmdName: string, undoData: Map<CADObject, UndoFile> }[] = [];
 
-    get UndoData(): Map<CADObject, UndoFile>
+class HistoricManage
+{
+    m_Db: Database;
+    curIndex: number = -1;                       //当前执行位置
+    historicRecord: CommandHistoricRecord[] = [];//历史记录
+    get UndoData(): CommandHistoricRecord
     {
-        if (this.commandUndoData.length == 0)
+        if (this.historicRecord.length == 0)
         {
             this.startCmd("");
         }
-        return this.commandUndoData[this.commandUndoData.length - 1].undoData;
+        return this.historicRecord[this.historicRecord.length - 1];
     }
 
     startCmd(cmdName: string)
     {
-        this.commandUndoData.splice(this.curUndoIndex, this.commandUndoData.length - this.curUndoIndex);
-        this.commandUndoData.push({ cmdName: "", undoData: new Map<CADObject, UndoFile>() });
-        this.curUndoIndex = this.commandUndoData.length - 1;
+        this.historicRecord.splice(this.curIndex, this.historicRecord.length - this.curIndex);
+        this.historicRecord.push(new CommandHistoricRecord());
+        this.curIndex = this.historicRecord.length - 1;
     }
 
-    Undo(cout: number)
+    Undo()
     {
-        let undoFile = this.commandUndoData[this.curUndoIndex];
-        if (!undoFile)
+        let historicRec = this.historicRecord[this.curIndex];
+        if (!historicRec)
         {
             return;
         }
 
-        for (let [obj, data] of undoFile.undoData)
+        let recList = historicRec.historicCol;
+        for (let i = recList.length; i--;)
         {
-            for (let i = data.m_UndoDataList.length; i--;)
-            {
-                let d = data.m_UndoDataList[i];
-                obj.ApplyPartialUndo(d.type, d.undoData);
-            }
+            let data = recList[i];
+            let obj = this.m_Db.getObject(data.objectId);
+            obj.ApplyPartialUndo(data.undoData);
         }
-        this.curUndoIndex--;
+        this.curIndex--;
     }
     Redo(cout: number)
     {
-        let undoFile = this.commandUndoData[this.curUndoIndex + 1];
-        if (!undoFile)
+        let undoData = this.historicRecord[this.curIndex + 1];
+        if (!undoData)
         {
             return;
         }
-        for (let [obj, data] of undoFile.undoData)
+        for (let rec of undoData.historicCol)
         {
-            for (let d of data.m_UndoDataList)
-            {
-                obj.ApplyPartialUndo(d.type, d.redoData);
-            }
+            let obj = this.m_Db.getObject(rec.objectId);
+            obj.ApplyPartialUndo(rec.redoData);
         }
-        this.curUndoIndex++;
+        this.curIndex++;
     }
 }
 
-class Database 
-{
 
+class Database extends CADObject
+{
+    className: "Database";
+    hm: HistoricManage;
     //块表记录
     blockTableCol: BlockTableRecord[];
     //材质字典
-}
 
+    objectCol = new Map<number, CADObject>();
+    constructor()
+    {
+        super();
+        this.objectCol.set(0, this);
+    }
 
+    getObject(id: number): CADObject
+    {
+        return this.objectCol.get(id);
+    }
 
-class BlockTableRecord extends CADObject
-{
-    //对象池. 管理所有的对象
-    objectMap = new Map<number, CADObject>();
-}
+    appendObject(obj: CADObject)
+    {
+        let id = this.objectCol.size;
+        this.objectCol.set(id, obj);
 
-/**
- * 
- * 
- * @class UndoFile
- */
-class UndoFile
-{
-    m_UndoDataList: UndoData[] = [];
+        this.hm.UndoData.historicCol.push(
+            {
+                objectId: 0,
+                undoData: { type: 1, i: id },//remove
+                redoData: { type: 2, i: id },//add
+            }
+        )
+    }
+    ApplyPartialUndo(data)
+    {
+        switch (data)
+        {
+            case 1:
+                // this.objectCol.get(data.i).IsErase = true;
+                break;
+            case 2:
+                // this.objectCol.get(data.i).isErase = false;
+                break;
+        }
+    }
 }
 
-interface UndoData
+
+
+class BlockTableRecord extends CADObject
 {
-    type: number;
-    undoData: any;
-    redoData: any;
-    userData?: any;
+    objectMap = new Map<number, CADObject>();
 }
 
 
@@ -218,38 +220,10 @@ interface EntityData
  */
 class Entity extends CADObject
 {
-    protected m_Data: EntityData;
-    m_Db: HistoryManager;
+    m_Db: Database;
     constructor()
     {
         super();
-        this.m_Data = {
-            id: -1,
-            isErase: false
-        };
-    }
-
-
-    get UndoFile(): UndoFile
-    {
-        if (this.m_Db)
-        {
-            let undoData = this.m_Db.UndoData;
-            if (!undoData.has(this))
-            {
-                undoData.set(this, new UndoFile());
-            }
-            return undoData.get(this);
-        }
-    }
-
-    WriteUndoData(data: UndoData)
-    {
-        let undoFile = this.UndoFile;
-        if (undoFile)
-        {
-            undoFile.m_UndoDataList.push(data);
-        }
     }
 }
 
@@ -280,35 +254,17 @@ interface LineData extends EntityData
  */
 class Line extends Entity
 {
-    protected m_Data: LineData;
     constructor()
     {
         super();
-        this.m_Data.startPoint = [0, 0, 0];
-        this.m_Data.endPoint = [0, 0, 0];
-    }
-    get StartPoint(): number[]
-    {
-        return this.m_Data.startPoint;
-    }
-    set StartPoint(value: number[])
-    {
-        this.WriteUndoData({
-            type: LineUndoType.StartPoint,
-            undoData: { startPoint: this.m_Data.startPoint },
-            redoData: { startPoint: value }
-        });
-        this.m_Data.startPoint = value;
     }
-
-    ApplyPartialUndo(type, data)
+    ApplyPartialUndo(data)
     {
-        switch (type)
+        switch (data.type)
         {
             case LineUndoType.Full:
                 break;
             case LineUndoType.StartPoint:
-                this.m_Data.startPoint = data.startPoint;
                 break;
             default:
                 break;
@@ -358,87 +314,3 @@ class LineAdapter extends EentiyDrawAdapter
         }
     }
 }
-
-
-let line = new Line();
-
-console.log(line);
-
-line.StartPoint = [1, 2, 3];
-
-console.log(line);
-
-
-let db = new HistoryManager();
-
-line.m_Db = db;
-
-
-line.StartPoint = [3, 3, 3];
-
-line.StartPoint = [3, 3, 5];
-
-line.StartPoint = [12, 3, 5];
-
-db.Undo(1);
-
-console.log(line.StartPoint);
-
-db.Redo(1);
-
-db.startCmd("");
-
-console.log(line.StartPoint);
-
-
-
-
-function per()
-{
-    for (let i = 0; i < 5000; i++)
-    {
-        new Line();
-    }
-}
-
-function per2()
-{
-    for (let i = 0; i < 5000; i++)
-    {
-
-        line.StartPoint = [3, 3, 3];
-
-        // console.log(line);
-        // line.StartPoint = [3, 3, 5];
-
-        line.StartPoint = [12, 3, 5];
-        // console.log(line);
-
-        // console.log(db.commandUndoData);
-
-        db.Undo(1);
-
-        // console.log(line);
-
-        db.Redo(1);
-
-        db.startCmd("");
-
-        // console.log(line.StartPoint);
-    }
-}
-
-// per();/*?.*/
-// per2();/*?.*/
-// per2();/*?.*/
-// per2();/*?.*/
-// per2();/*?.*/
-
-// // console.log(3);
-
-let undoManage = new HistoricManage();
-
-let l = new Line();
-
-let ms = new BlockTableRecord();
-