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flashx.undo 

UndoManager  - AS3

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附錄

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法律聲明
套件flashx.undo
類別public class UndoManager
繼承UndoManager Inheritance Object
實作 IUndoManager

語言版本: ActionScript 3.0
執行階段版本: Flash Player 10, AIR 1.5

UndoManager 類別管理文字流排中的編輯作業記錄,讓這些作業可以還原及重做。

還原管理員維護 IOperation 物件的兩個堆疊。執行還原作業時,會將該作業放置在還原堆疊上。如果還原該作業,則會從還原堆疊中將它移除、反轉,然後放置在重做堆疊上。相同地,如果接著重做該作業,則會從重做堆疊中將它移除、重新執行,然後再次放置在還原堆疊上。如果先執行另一個作業,則會清除重做堆疊。

如果直接修改 TextFlow (不是透過呼叫編輯管理員,而是直接呼叫受管理的 FlowElement 物件),則編輯管理員會清除還原堆疊以防止堆疊與目前狀態不同步。

相關 API 元素



公用屬性
 屬性定義自
 Inheritedconstructor : Object
類別物件的參照或是特定物件實體的建構函數。
Object
  undoAndRedoItemLimit : int
追踨可還原或可重做作業的數量上限。
UndoManager
公用方法
 方法定義自
  
建立 UndoManager 物件。
UndoManager
  
指示目前是否具有可重做的作業。
UndoManager
  
指示目前是否具有可還原的作業。
UndoManager
  
同時清除還原及重做步驟記錄。
UndoManager
  
清除重做堆疊。
UndoManager
 Inherited
指出物件是否有已定義的指定屬性。
Object
 Inherited
指出 Object 類別的實體是否位於指定為參數的物件原型鏈中。
Object
  
傳回下一個要重做的作業。
UndoManager
  
傳回下一個要還原的作業。
UndoManager
  
從重做堆疊中移除下一個要重做的作業,然後傳回該作業。
UndoManager
  
從還原堆疊中移除下一個要還原的作業,然後傳回該作業。
UndoManager
 Inherited
指出指定的屬性是否存在,以及是否可列舉。
Object
  
增加可重做的作業到重做堆疊。
UndoManager
  
增加可還原的作業到還原堆疊。
UndoManager
  
從重做堆疊中移除下一個 IOperation 物件,並呼叫該物件的 performRedo() 函數。
UndoManager
 Inherited
為迴圈作業設定動態屬性的可用性。
Object
 Inherited
傳回代表此物件的字串,根據地區特定慣例進行格式化。
Object
 Inherited
會傳回指定之物件的字串形式。
Object
  
從還原堆疊中移除下一個 IOperation 物件,並呼叫該物件的 performUndo() 函數。
UndoManager
 Inherited
會傳回指定之物件的基本值。
Object
屬性詳細資訊

undoAndRedoItemLimit

屬性
undoAndRedoItemLimit:int

語言版本: ActionScript 3.0
執行階段版本: Flash Player 10, AIR 1.5

追踨可還原或可重做作業的數量上限。

若要停用還原功能,請將此值設定為 0。



實作
    public function get undoAndRedoItemLimit():int
    public function set undoAndRedoItemLimit(value:int):void
建構函式詳細資料

UndoManager

()建構函式
public function UndoManager()

語言版本: ActionScript 3.0
執行階段版本: Flash Player 10, AIR 1.5

建立 UndoManager 物件。

方法詳細資訊

canRedo

()方法
public function canRedo():Boolean

語言版本: ActionScript 3.0
執行階段版本: Flash Player 10, AIR 1.5

指示目前是否具有可重做的作業。

傳回值
Boolean — 如果重做堆疊上具有可重做的作業,則布林值為 true。否則為 false

canUndo

()方法 
public function canUndo():Boolean

語言版本: ActionScript 3.0
執行階段版本: Flash Player 10, AIR 1.5

指示目前是否具有可還原的作業。

傳回值
Boolean — 如果還原堆疊上具有可反轉的作業,則布林值為 true。否則為 false

clearAll

()方法 
public function clearAll():void

語言版本: ActionScript 3.0
執行階段版本: Flash Player 10, AIR 1.5

同時清除還原及重做步驟記錄。

clearRedo

()方法 
public function clearRedo():void

語言版本: ActionScript 3.0
執行階段版本: Flash Player 10, AIR 1.5

清除重做堆疊。

peekRedo

()方法 
public function peekRedo():IOperation

語言版本: ActionScript 3.0
執行階段版本: Flash Player 10, AIR 1.5

傳回下一個要重做的作業。

傳回值
IOperation — 可重做的 IOperation 物件,或如果堆疊上沒有可重做的作業,則為 null

peekUndo

()方法 
public function peekUndo():IOperation

語言版本: ActionScript 3.0
執行階段版本: Flash Player 10, AIR 1.5

傳回下一個要還原的作業。

傳回值
IOperation — 可還原的 IOperation 物件,或如果堆疊上沒有可還原的作業,則為 null

popRedo

()方法 
public function popRedo():IOperation

語言版本: ActionScript 3.0
執行階段版本: Flash Player 10, AIR 1.5

從重做堆疊中移除下一個要重做的作業,然後傳回該作業。

傳回值
IOperation — 可重做的 IOperation 物件,或如果堆疊上沒有可重做的作業,則為 null

popUndo

()方法 
public function popUndo():IOperation

語言版本: ActionScript 3.0
執行階段版本: Flash Player 10, AIR 1.5

從還原堆疊中移除下一個要還原的作業,然後傳回該作業。

傳回值
IOperation — 可還原的 IOperation 物件,或如果堆疊上沒有可還原的作業,則為 null

pushRedo

()方法 
public function pushRedo(operation:IOperation):void

語言版本: ActionScript 3.0
執行階段版本: Flash Player 10, AIR 1.5

增加可重做的作業到重做堆疊。

參數

operation:IOperation

pushUndo

()方法 
public function pushUndo(operation:IOperation):void

語言版本: ActionScript 3.0
執行階段版本: Flash Player 10, AIR 1.5

增加可還原的作業到還原堆疊。

參數

operation:IOperation

redo

()方法 
public function redo():void

語言版本: ActionScript 3.0
執行階段版本: Flash Player 10, AIR 1.5

從重做堆疊中移除下一個 IOperation 物件,並呼叫該物件的 performRedo() 函數。

相關 API 元素

undo

()方法 
public function undo():void

語言版本: ActionScript 3.0
執行階段版本: Flash Player 10, AIR 1.5

從還原堆疊中移除下一個 IOperation 物件,並呼叫該物件的 performUndo() 函數。

相關 API 元素





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