1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
/* -*- 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 .
*/
#include "txtcache.hxx"
#include <txtfrm.hxx>
#include "porlay.hxx"
#include <sfx2/viewsh.hxx>
#include <osl/diagnose.h>
#include <view.hxx>
SwTextLine::SwTextLine( SwTextFrame const *pFrame, std::unique_ptr<SwParaPortion> pNew ) :
SwCacheObj( static_cast<void const *>(pFrame) ),
m_pLine( std::move(pNew) )
{
}
SwTextLine::~SwTextLine()
{
}
void SwTextLine::UpdateCachePos()
{
// note: SwTextFrame lives longer than its SwTextLine, see ~SwTextFrame
assert(m_pOwner);
const_cast<SwTextFrame *>(static_cast<SwTextFrame const *>(m_pOwner))->SetCacheIdx(GetCachePos());
}
SwCacheObj *SwTextLineAccess::NewObj()
{
return new SwTextLine( static_cast<SwTextFrame const *>(m_pOwner) );
}
SwParaPortion *SwTextLineAccess::GetPara()
{
SwTextLine *pRet;
if ( m_pObj )
pRet = static_cast<SwTextLine*>(m_pObj);
else
{
pRet = static_cast<SwTextLine*>(Get(false));
const_cast<SwTextFrame *>(static_cast<SwTextFrame const *>(m_pOwner))->SetCacheIdx( pRet->GetCachePos() );
}
if ( !pRet->GetPara() )
pRet->SetPara( new SwParaPortion, true/*bDelete*/ );
return pRet->GetPara();
}
SwTextLineAccess::SwTextLineAccess( const SwTextFrame *pOwn ) :
SwCacheAccess( *SwTextFrame::GetTextCache(), pOwn, pOwn->GetCacheIdx() )
{
}
bool SwTextLineAccess::IsAvailable() const
{
return m_pObj && static_cast<SwTextLine*>(m_pObj)->GetPara();
}
bool SwTextFrame::HasPara_() const
{
SwTextLine *pTextLine = static_cast<SwTextLine*>(SwTextFrame::GetTextCache()->
Get( this, GetCacheIdx(), false ));
if ( pTextLine )
{
if ( pTextLine->GetPara() )
return true;
}
else
const_cast<SwTextFrame*>(this)->mnCacheIndex = USHRT_MAX;
return false;
}
SwParaPortion *SwTextFrame::GetPara()
{
if ( GetCacheIdx() != USHRT_MAX )
{
SwTextLine *pLine = static_cast<SwTextLine*>(SwTextFrame::GetTextCache()->
Get( this, GetCacheIdx(), false ));
if ( pLine )
return pLine->GetPara();
else
mnCacheIndex = USHRT_MAX;
}
return nullptr;
}
void SwTextFrame::ClearPara()
{
OSL_ENSURE( !IsLocked(), "+SwTextFrame::ClearPara: this is locked." );
if ( !IsLocked() && GetCacheIdx() != USHRT_MAX )
{
SwTextLine *pTextLine = static_cast<SwTextLine*>(SwTextFrame::GetTextCache()->
Get( this, GetCacheIdx(), false ));
if ( pTextLine )
{
pTextLine->SetPara( nullptr, true/*bDelete*/ );
}
else
mnCacheIndex = USHRT_MAX;
}
}
void SwTextFrame::RemoveFromCache()
{
if (GetCacheIdx() != USHRT_MAX)
{
s_pTextCache->Delete(this, GetCacheIdx());
SetCacheIdx(USHRT_MAX);
}
}
void SwTextFrame::SetPara( SwParaPortion *pNew, bool bDelete )
{
if ( GetCacheIdx() != USHRT_MAX )
{
// Only change the information, the CacheObj stays there
SwTextLine *pTextLine = static_cast<SwTextLine*>(SwTextFrame::GetTextCache()->
Get( this, GetCacheIdx(), false ));
if ( pTextLine )
{
pTextLine->SetPara( pNew, bDelete );
}
else
{
OSL_ENSURE( !pNew, "+SetPara: Losing SwParaPortion" );
mnCacheIndex = USHRT_MAX;
}
}
else if ( pNew )
{ // Insert a new one
SwTextLine *pTextLine = new SwTextLine( this, std::unique_ptr<SwParaPortion>(pNew) );
if (SwTextFrame::GetTextCache()->Insert(pTextLine, false))
mnCacheIndex = pTextLine->GetCachePos();
else
{
OSL_FAIL( "+SetPara: InsertCache failed." );
}
}
}
/** Prevent the SwParaPortions of the *visible* paragraphs from being deleted;
they would just be recreated on the next paint.
Heuristic: 100 per view are visible
If the cache is too small, enlarge it to ensure there are sufficient free
entries for the layout so it doesn't have to throw away a node's
SwParaPortion when it starts formatting the next node.
*/
SwSaveSetLRUOfst::SwSaveSetLRUOfst()
{
sal_uInt16 nVisibleShells(0);
for (auto pView = SfxViewShell::GetFirst(true, checkSfxViewShell<SwView>);
pView != nullptr;
pView = SfxViewShell::GetNext(*pView, true, checkSfxViewShell<SwView>))
{
// Apparently we are not interested here what document pView is for, but only in the
// total number of shells in the process?
++nVisibleShells;
}
sal_uInt16 const nPreserved(100 * nVisibleShells);
SwCache & rCache(*SwTextFrame::GetTextCache());
if (rCache.GetCurMax() < nPreserved + 250)
{
rCache.IncreaseMax(nPreserved + 250 - rCache.GetCurMax());
}
rCache.SetLRUOfst(nPreserved);
}
SwSaveSetLRUOfst::~SwSaveSetLRUOfst()
{
SwTextFrame::GetTextCache()->ResetLRUOfst();
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
