GuiTextUndoRedo.h

/*********************************************************************** Vczh Library++ 3.0 Developer: Zihan Chen(vczh) GacUI::Control System Interfaces: ***********************************************************************/

#ifndef VCZH_PRESENTATION_CONTROLS_GUITEXTUNDOREDO

#define VCZH_PRESENTATION_CONTROLS_GUITEXTUNDOREDO

#include "GuiTextGeneralOperations.h"

#include "../../../GraphicsElement/GuiGraphicsDocumentElement.h"

namespace

{

namespace

presentation

{

namespace

controls

{

class

GuiTextBoxCommonInterface

;

/*********************************************************************** Undo Redo ***********************************************************************/

class

GuiGeneralUndoRedoProcessor

public

Object

{

protected

class

IEditStep

public

Interface

{

public

virtual

void

Undo

()=

;

virtual

void

Redo

()=

; };

friend

class

collections

ArrayBase

Ptr

IEditStep

>>;

protected

collections

List

Ptr

IEditStep

steps

;

vint

firstFutureStep

;

vint

savedStep

;

bool

performingUndoRedo

;

void

PushStep

(

Ptr

IEditStep

step

);

public

GuiGeneralUndoRedoProcessor

();

GuiGeneralUndoRedoProcessor

();

Event

void

()>

UndoRedoChanged

;

Event

void

()>

ModifiedChanged

;

bool

CanUndo

();

bool

CanRedo

();

void

ClearUndoRedo

();

bool

GetModified

();

void

NotifyModificationSaved

();

bool

Undo

();

bool

Redo

(); };

/*********************************************************************** Undo Redo (Text) ***********************************************************************/

class

GuiTextBoxUndoRedoProcessor

public

GuiGeneralUndoRedoProcessor

public

ICommonTextEditCallback

{

protected

class

EditStep

public

Object

public

IEditStep

{

public

GuiTextBoxUndoRedoProcessor

processor

;

TextEditNotifyStruct

arguments

;

void

Undo

();

void

Redo

(); };

compositions

GuiGraphicsComposition

ownerComposition

;

public

GuiTextBoxUndoRedoProcessor

();

GuiTextBoxUndoRedoProcessor

();

void

Attach

(

elements

GuiColorizedTextElement

element

SpinLock

elementModifyLock

compositions

GuiGraphicsComposition

_ownerComposition

vuint

editVersion

)

override

;

void

Detach

()

override

;

void

TextEditPreview

(

TextEditPreviewStruct

arguments

)

override

;

void

TextEditNotify

(

const

TextEditNotifyStruct

arguments

)

override

;

void

TextCaretChanged

(

const

TextCaretChangedStruct

arguments

)

override

;

void

TextEditFinished

(

vuint

editVersion

)

override

; };

/*********************************************************************** Undo Redo (Document) ***********************************************************************/

class

GuiDocumentUndoRedoProcessor

public

GuiGeneralUndoRedoProcessor

{

public

struct

ReplaceModelStruct

{

TextPos

originalStart

;

TextPos

originalEnd

;

Ptr

DocumentModel

originalModel

;

TextPos

inputStart

;

TextPos

inputEnd

;

Ptr

DocumentModel

inputModel

;

ReplaceModelStruct

() { } };

struct

RenameStyleStruct

{

WString

oldStyleName

;

WString

newStyleName

;

RenameStyleStruct

() { } };

struct

SetAlignmentStruct

{

vint

start

;

vint

end

;

collections

Array

Nullable

Alignment

originalAlignments

;

collections

Array

Nullable

Alignment

inputAlignments

; };

protected

elements

GuiDocumentElement

element

;

compositions

GuiGraphicsComposition

ownerComposition

;

class

ReplaceModelStep

public

Object

public

IEditStep

{

public

GuiDocumentUndoRedoProcessor

processor

;

ReplaceModelStruct

arguments

;

void

Undo

();

void

Redo

(); };

class

RenameStyleStep

public

Object

public

IEditStep

{

public

GuiDocumentUndoRedoProcessor

processor

;

RenameStyleStruct

arguments

;

void

Undo

();

void

Redo

(); };

class

SetAlignmentStep

public

Object

public

IEditStep

{

public

GuiDocumentUndoRedoProcessor

processor

;

Ptr

SetAlignmentStruct

arguments

;

void

Undo

();

void

Redo

(); };

public

GuiDocumentUndoRedoProcessor

();

GuiDocumentUndoRedoProcessor

();

void

Setup

(

elements

GuiDocumentElement

_element

compositions

GuiGraphicsComposition

_ownerComposition

);

void

OnReplaceModel

(

const

ReplaceModelStruct

arguments

);

void

OnRenameStyle

(

const

RenameStyleStruct

arguments

);

void

OnSetAlignment

(

Ptr

SetAlignmentStruct

arguments

); }; } } }

#endif