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Diffstat (limited to 'inc/bf_svtools/undo.hxx')
| -rw-r--r-- | inc/bf_svtools/undo.hxx | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/inc/bf_svtools/undo.hxx b/inc/bf_svtools/undo.hxx new file mode 100644 index 000000000..e66861dc4 --- /dev/null +++ b/inc/bf_svtools/undo.hxx @@ -0,0 +1,223 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ +#ifndef _UNDO_HXX +#define _UNDO_HXX + +#include <bf_svtools/bf_solar.h> + + +#include <tools/rtti.hxx> + +#include <bf_tools/string.hxx> + +#include <bf_svtools/svarray.hxx> + +namespace binfilter +{ + +//==================================================================== + +class SfxRepeatTarget +{ +public: + TYPEINFO(); + virtual ~SfxRepeatTarget() = 0; +}; + +//==================================================================== + +class SfxUndoAction +{ + BOOL bLinked; +public: + TYPEINFO(); + SfxUndoAction(); + virtual ~SfxUndoAction(); + + virtual BOOL IsLinked(); + virtual void SetLinked( BOOL bIsLinked = TRUE ); + virtual void Undo(); + virtual void Redo(); + virtual void Repeat(SfxRepeatTarget&); + virtual BOOL CanRepeat(SfxRepeatTarget&) const; + + virtual BOOL Merge( SfxUndoAction *pNextAction ); + + virtual UniString GetComment() const; + virtual UniString GetRepeatComment(SfxRepeatTarget&) const; + virtual USHORT GetId() const; + +private: + SfxUndoAction& operator=( const SfxUndoAction& ); // n.i.!! +}; + +//======================================================================== + +SV_DECL_PTRARR( SfxUndoActions, SfxUndoAction*, 20, 8 ) + +//==================================================================== + +/** do not make use of this implementation details, unless you + really really have to! */ +struct SfxUndoArray +{ + SfxUndoActions aUndoActions; + USHORT nMaxUndoActions; + USHORT nCurUndoAction; + SfxUndoArray *pFatherUndoArray; + SfxUndoArray(USHORT nMax=0): + nMaxUndoActions(nMax), nCurUndoAction(0), + pFatherUndoArray(0) {} + ~SfxUndoArray(); +}; + +//========================================================================= + +/** do not make use of this implementation details, unless you + really really have to! */ +class SfxListUndoAction : public SfxUndoAction, public SfxUndoArray + +/* [Beschreibung] + + UndoAction zur Klammerung mehrerer Undos in einer UndoAction. + Diese Actions werden vom SfxUndoManager verwendet. Dort + wird mit < SfxUndoManager::EnterListAction > eine Klammerebene + geoeffnet und mit <SfxUndoManager::LeaveListAction > wieder + geschlossen. Redo und Undo auf SfxListUndoActions wirken + Elementweise. + +*/ +{ + public: + TYPEINFO(); + + SfxListUndoAction( const UniString &rComment, + const UniString rRepeatComment, USHORT Id, SfxUndoArray *pFather); + virtual void Undo(); + virtual void Redo(); + virtual void Repeat(SfxRepeatTarget&); + virtual BOOL CanRepeat(SfxRepeatTarget&) const; + + virtual BOOL Merge( SfxUndoAction *pNextAction ); + + virtual UniString GetComment() const; + virtual UniString GetRepeatComment(SfxRepeatTarget&) const; + virtual USHORT GetId() const; + + void SetComment( const UniString& rComment ); + + private: + + USHORT nId; + UniString aComment, aRepeatComment; + +}; + +//========================================================================= + +class SfxUndoManager +{ + friend class SfxLinkUndoAction; + + SfxUndoArray *pUndoArray; + SfxUndoArray *pActUndoArray; + SfxUndoArray *pFatherUndoArray; + +public: + SfxUndoManager( USHORT nMaxUndoActionCount = 20 ); + virtual ~SfxUndoManager(); + + virtual void SetMaxUndoActionCount( USHORT nMaxUndoActionCount ); + virtual USHORT GetMaxUndoActionCount() const; + virtual void Clear(); + + virtual void AddUndoAction( SfxUndoAction *pAction, BOOL bTryMerg=FALSE ); + + virtual USHORT GetUndoActionCount() const; + virtual USHORT GetUndoActionId(USHORT nNo=0) const; + virtual UniString GetUndoActionComment( USHORT nNo=0 ) const; + + virtual BOOL Undo( USHORT nCount=1 ); + virtual void Undo( SfxUndoAction &rAction ); + + virtual USHORT GetRedoActionCount() const; + virtual USHORT GetRedoActionId(USHORT nNo=0) const; + virtual UniString GetRedoActionComment( USHORT nNo=0 ) const; + + virtual BOOL Redo( USHORT nCount=1 ); + virtual void Redo( SfxUndoAction &rAction ); + virtual void ClearRedo(); + + virtual USHORT GetRepeatActionCount() const; + virtual UniString GetRepeatActionComment( SfxRepeatTarget &rTarget, USHORT nNo = 0) const; + virtual BOOL Repeat( SfxRepeatTarget &rTarget, USHORT nFrom=0, USHORT nCount=1 ); + virtual void Repeat( SfxRepeatTarget &rTarget, SfxUndoAction &rAction ); + virtual BOOL CanRepeat( SfxRepeatTarget &rTarget, USHORT nNo = 0 ) const; + virtual BOOL CanRepeat( SfxRepeatTarget &rTarget, SfxUndoAction &rAction ) const; + + virtual void EnterListAction(const UniString &rComment, const UniString& rRepeatComment, USHORT nId=0); + virtual void LeaveListAction(); +}; + +//========================================================================= + +class SfxLinkUndoAction : public SfxUndoAction + +/* [Beschreibung] + + Die SfxLinkUndoAction dient zur Verbindung zweier SfxUndoManager. Die + im ersten SfxUndoManager eingefuegten SfxUndoAction leiten ihr Undo und Redo + an den zweiten weiter, so dass ein Undo und Redo am ersten + SfxUndoManager wie eine am zweiten wirkt. + + Die SfxLinkUndoAction ist nach dem Einfuegen der SfxUndoAction am + zweiten SfxUndoManager einzufuegen. Waehrend der zweite SfxUndoManager + vom ersten ferngesteuert wird, duerfen an ihm weder Actions eingefuegt werden, + noch darf Undo/Redo aufgerufen werden. + +*/ + +{ +public: + TYPEINFO(); + ~SfxLinkUndoAction(); + + virtual void Undo(); + virtual void Redo(); + virtual BOOL CanRepeat(SfxRepeatTarget& r) const; + + virtual void Repeat(SfxRepeatTarget&r); + + virtual UniString GetComment() const; + virtual UniString GetRepeatComment(SfxRepeatTarget&r) const; + virtual USHORT GetId() const; + + SfxUndoAction* GetAction() const { return pAction; } + +protected: + SfxUndoManager *pUndoManager; + SfxUndoAction *pAction; + +}; + +} + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |