/// <summary> 插入Item到指定位置 </summary>
        /// <param name="AItemNo">操作发生时的ItemNo</param>
        /// <param name="AOffset">操作发生时的Offset</param>
        protected void UndoAction_InsertItem(int aItemNo, int aOffset)
        {
            HCUndoList vUndoList = GetUndoList();

            if ((vUndoList != null) && vUndoList.Enable)
            {
                HCUndo vUndo = vUndoList.Last;
                if (vUndo != null)
                {
                    HCItemUndoAction vItemAction = vUndo.ActionAppend(UndoActionTag.uatInsertItem, aItemNo, aOffset,
                                                                      Items[aItemNo].ParaFirst) as HCItemUndoAction;
                    SaveItemToStreamAlone(Items[aItemNo], vItemAction.ItemStream);
                }
            }
        }
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        protected void UndoAction_ItemMirror(int aItemNo, int aOffset)
        {
            HCUndoList vUndoList = GetUndoList();

            if ((vUndoList != null) && vUndoList.Enable)
            {
                HCUndo vUndo = vUndoList.Last;
                if (vUndo != null)
                {
                    HCItemUndoAction vItemAction = vUndo.ActionAppend(HCAction.actItemMirror, aItemNo, aOffset,
                                                                      Items[aItemNo].ParaFirst) as HCItemUndoAction;
                    SaveItemToStreamAlone(vItemAction.ItemStream, Items[aItemNo]);
                }
            }
        }
Exemple #3
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        private void UndoRedoInsertItem(HCCustomUndo aUndo, HCCustomUndoAction aAction, bool aIsUndo, ref int aCaretItemNo, ref int aCaretOffset, ref int aCaretDrawItemNo)
        {
            HCItemUndoAction vAction = aAction as HCItemUndoAction;

            aCaretItemNo = vAction.ItemNo;

            if (aIsUndo)
            {
                Items.RemoveAt(vAction.ItemNo);
                FItemAddCount--;

                if (aCaretItemNo > 0)
                {
                    aCaretItemNo--;
                    if (Items[aCaretItemNo].StyleNo > HCStyle.Null)
                    {
                        aCaretOffset = Items[aCaretItemNo].Length;
                    }
                    else
                    {
                        aCaretOffset = HC.OffsetAfter;
                    }
                }
                else
                {
                    aCaretOffset = 0;
                }
            }
            else  // 重做
            {
                HCCustomItem vItem = null;
                LoadItemFromStreamAlone(vAction.ItemStream, ref vItem);
                Items.Insert(vAction.ItemNo, vItem);
                FItemAddCount++;

                aCaretItemNo = vAction.ItemNo;
                if (Items[aCaretItemNo].StyleNo > HCStyle.Null)
                {
                    aCaretOffset = Items[aCaretItemNo].Length;
                }
                else
                {
                    aCaretOffset = HC.OffsetAfter;
                }

                aCaretDrawItemNo = (aUndo as HCDataUndo).CaretDrawItemNo + 1;
            }
        }
Exemple #4
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        private void UndoRedoItemMirror(HCCustomUndoAction aAction, bool aIsUndo, ref int aCaretItemNo, ref int aCaretOffset)
        {
            HCItemUndoAction vAction = aAction as HCItemUndoAction;

            aCaretItemNo = vAction.ItemNo;
            aCaretOffset = vAction.Offset;
            HCCustomItem vItem = Items[aCaretItemNo];

            if (aIsUndo)
            {
                LoadItemFromStreamAlone(vAction.ItemStream, ref vItem);
            }
            else
            {
                LoadItemFromStreamAlone(vAction.ItemStream, ref vItem);
            }
        }
Exemple #5
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        public HCCustomUndoAction ActionAppend(HCAction aTag, int aItemNo, int aOffset, bool aParaFirst)
        {
            HCCustomUndoAction Result = null;

            switch (aTag)
            {
            case HCAction.actBackDeleteText:
            case HCAction.actDeleteText:
            case HCAction.actInsertText:
                Result = new HCTextUndoAction();
                break;

            case HCAction.actSetItemText:
                Result = new HCSetItemTextUndoAction();
                break;

            case HCAction.actDeleteItem:
            case HCAction.actInsertItem:
            case HCAction.actItemMirror:
                Result = new HCItemUndoAction();
                break;

            //case HCAction.actItemProperty:
            //    Result = new HCItemParaFirstUndoAction();
            //    break;

            case HCAction.actItemSelf:
                Result = new HCItemSelfUndoAction();
                break;

            default:
                Result = new HCCustomUndoAction();
                break;
            }

            Result.Tag       = aTag;
            Result.ItemNo    = aItemNo;
            Result.Offset    = aOffset;
            Result.ParaFirst = aParaFirst;

            this.Actions.Add(Result);

            return(Result);
        }
Exemple #6
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        public HCCustomUndoAction ActionAppend(UndoActionTag ATag, int AItemNo, int AOffset)
        {
            HCCustomUndoAction Result = null;

            switch (ATag)
            {
            case UndoActionTag.uatDeleteText:
            case UndoActionTag.uatInsertText:
                Result = new HCTextUndoAction();
                break;

            case UndoActionTag.uatDeleteItem:
            case UndoActionTag.uatInsertItem:
                Result = new HCItemUndoAction();
                break;

            case UndoActionTag.uatItemProperty:
                Result = new HCItemParaFirstUndoAction();
                break;

            case UndoActionTag.uatItemSelf:
                Result = new HCItemSelfUndoAction();
                break;

            default:
                Result = new HCCustomUndoAction();
                break;
            }

            Result.Tag    = ATag;
            Result.ItemNo = AItemNo;
            Result.Offset = AOffset;

            this.Actions.Add(Result);

            return(Result);
        }
Exemple #7
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        private void UndoRedoInsertItem(HCCustomUndo aUndo, HCCustomUndoAction aAction, bool aIsUndo, ref int aCaretItemNo, ref int aCaretOffset, ref int aCaretDrawItemNo)
        {
            HCItemUndoAction vAction = aAction as HCItemUndoAction;

            aCaretItemNo = vAction.ItemNo;

            if (aIsUndo)
            {
                if (aCaretItemNo < Items.Count - 1)    // 不是最后一个
                {
                    if (Items[aCaretItemNo].ParaFirst) // 段首删除了,光标为下一个开始
                    {
                        aCaretOffset     = 0;
                        aCaretDrawItemNo = Items[aCaretItemNo + 1].FirstDItemNo;
                    }
                    else  // 删除的不是段首
                    //if (Items[aCaretItemNo + 1].ParaFirst)  // 下一个是段首,光标保持在同段最后
                    {
                        aCaretItemNo--;
                        if (Items[aCaretItemNo].StyleNo > HCStyle.Null)
                        {
                            aCaretOffset = Items[aCaretItemNo].Length;
                        }
                        else
                        {
                            aCaretOffset = HC.OffsetAfter;
                        }

                        aCaretDrawItemNo = (aUndo as HCDataUndo).CaretDrawItemNo;// - 1;
                    }
                }
                else
                if (aCaretItemNo > 0)  // 不是第一个
                {
                    aCaretItemNo--;
                    if (Items[aCaretItemNo].StyleNo > HCStyle.Null)
                    {
                        aCaretOffset = Items[aCaretItemNo].Length;
                    }
                    else
                    {
                        aCaretOffset = HC.OffsetAfter;
                    }

                    aCaretDrawItemNo = (aUndo as HCDataUndo).CaretDrawItemNo - 1;
                }
                else
                {
                    aCaretOffset = 0;
                }

                Items.RemoveAt(vAction.ItemNo);
                FItemAddCount--;
            }
            else  // 重做
            {
                HCCustomItem vItem = null;
                LoadItemFromStreamAlone(vAction.ItemStream, ref vItem);
                Items.Insert(vAction.ItemNo, vItem);
                FItemAddCount++;

                aCaretItemNo = vAction.ItemNo;
                if (Items[aCaretItemNo].StyleNo > HCStyle.Null)
                {
                    aCaretOffset = Items[aCaretItemNo].Length;
                }
                else
                {
                    aCaretOffset = HC.OffsetAfter;
                }

                aCaretDrawItemNo = (aUndo as HCDataUndo).CaretDrawItemNo + 1;
            }
        }