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/* -*- 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 INCLUDED_SW_SOURCE_CORE_TEXT_ATRHNDL_HXX
#define INCLUDED_SW_SOURCE_CORE_TEXT_ATRHNDL_HXX
#define INITIAL_NUM_ATTR 3
#define NUM_ATTRIBUTE_STACKS 43
#include <txatbase.hxx>
#include <swfntcch.hxx>
class SwAttrSet;
class IDocumentSettingAccess;
class SwViewShell;
class SfxPoolItem;
extern const sal_uInt8 StackPos[];
/*************************************************************************
* class SwAttrHandler
*
* Used by Attribute Iterators to organize attributes on stacks to
* find the valid attribute in each category
*************************************************************************/
class SwAttrHandler
{
private:
/*************************************************************************
* class SwAttrStack
*
* Container for SwTxtAttr Objects
*************************************************************************/
class SwAttrStack
{
private:
SwTxtAttr* pInitialArray[ INITIAL_NUM_ATTR ];
SwTxtAttr** pArray;
sal_uInt16 nCount; // number of elements on stack
sal_uInt16 nSize; // number of positions in Array
public:
// Ctor, Dtor
inline SwAttrStack();
inline ~SwAttrStack() {
if ( nSize > INITIAL_NUM_ATTR ) delete [] pArray; }
// reset stack
inline void Reset() { nCount = 0; };
// insert on top
inline void Push( const SwTxtAttr& rAttr ) { Insert( rAttr, nCount ); };
// insert at specified position, take care for not inserting behind
// the value returned by Count()
void Insert( const SwTxtAttr& rAttr, const sal_uInt16 nPos );
// remove specified attribute
void Remove( const SwTxtAttr& rAttr );
// get attribute from top if exists, otherwise 0
const SwTxtAttr* Top() const;
// number of elements on stack
inline sal_uInt16 Count() const { return nCount; };
// returns position of rAttr on Stack if found, otherwise USHRT_MAX
// can be used for Remove of an attribute
sal_uInt16 Pos( const SwTxtAttr& rAttr ) const;
};
SwAttrStack aAttrStack[ NUM_ATTRIBUTE_STACKS ]; // stack collection
const SfxPoolItem* pDefaultArray[ NUM_DEFAULT_VALUES ];
const IDocumentSettingAccess* mpIDocumentSettingAccess;
const SwViewShell* mpShell;
// This is the base font for the paragraph. It is stored in order to have
// a template, if we have to restart the attribute evaluation
SwFont* pFnt;
sal_Bool bVertLayout;
// change font according to pool item
void FontChg(const SfxPoolItem& rItem, SwFont& rFnt, sal_Bool bPush );
// push attribute to specified stack, returns true, if attribute has
// been pushed on top of stack (important for stacks containing different
// attributes with different priority and redlining)
sal_Bool Push( const SwTxtAttr& rAttr, const SfxPoolItem& rItem );
// apply top attribute on stack to font
void ActivateTop( SwFont& rFnt, sal_uInt16 nStackPos );
public:
// Ctor
SwAttrHandler();
~SwAttrHandler();
// set default attributes to values in rAttrSet or from cache
void Init( const SwAttrSet& rAttrSet,
const IDocumentSettingAccess& rIDocumentSettingAccess,
const SwViewShell* pShell );
void Init( const SfxPoolItem** pPoolItem, const SwAttrSet* pAttrSet,
const IDocumentSettingAccess& rIDocumentSettingAccess,
const SwViewShell* pShell, SwFont& rFnt,
sal_Bool bVertLayout );
// remove everything from internal stacks, keep default data
void Reset( );
// insert specified attribute and change font
void PushAndChg( const SwTxtAttr& rAttr, SwFont& rFnt );
// remove specified attribute and reset font
void PopAndChg( const SwTxtAttr& rAttr, SwFont& rFnt );
void Pop( const SwTxtAttr& rAttr );
// apply script dependent attributes
// void ChangeScript( SwFont& rFnt, const sal_uInt8 nScr );
// returns the default value for stack nStack
inline const SfxPoolItem& GetDefault( const sal_uInt16 nAttribID ) const;
// do not call these if you only used the small init function
inline void ResetFont( SwFont& rFnt ) const;
inline const SwFont* GetFont() const;
void GetDefaultAscentAndHeight(SwViewShell* pShell,
OutputDevice& rOut,
sal_uInt16& nAscent,
sal_uInt16& nHeight) const;
};
inline const SfxPoolItem& SwAttrHandler::GetDefault( const sal_uInt16 nAttribID ) const
{
OSL_ENSURE( nAttribID < RES_TXTATR_END,
"this attrib does not ex."
);
OSL_ENSURE( pDefaultArray[ StackPos[ nAttribID ] ], "array not initialized" );
return *pDefaultArray[ StackPos[ nAttribID ] ];
}
inline void SwAttrHandler::ResetFont( SwFont& rFnt ) const
{
OSL_ENSURE( pFnt, "ResetFont without a font" );
if ( pFnt )
rFnt = *pFnt;
};
inline const SwFont* SwAttrHandler::GetFont() const
{
return pFnt;
};
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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