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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #ifndef INCLUDED_SVTOOLS_SOURCE_GRAPHIC_GRFCACHE_HXX
21 : #define INCLUDED_SVTOOLS_SOURCE_GRAPHIC_GRFCACHE_HXX
22 :
23 : #include <vcl/graph.hxx>
24 : #include <vcl/timer.hxx>
25 : #include <list>
26 :
27 :
28 : // - GraphicManagerCache -
29 :
30 :
31 : class GraphicAttr;
32 : class GraphicCacheEntry;
33 : class GraphicDisplayCacheEntry;
34 : class GraphicObject;
35 :
36 : class GraphicCache
37 : {
38 : private:
39 : typedef std::list< GraphicCacheEntry* > GraphicCacheEntryList;
40 : typedef std::list< GraphicDisplayCacheEntry* > GraphicDisplayCacheEntryList;
41 :
42 : Timer maReleaseTimer;
43 : GraphicCacheEntryList maGraphicCache;
44 : GraphicDisplayCacheEntryList maDisplayCache;
45 : sal_uLong mnReleaseTimeoutSeconds;
46 : sal_uLong mnMaxDisplaySize;
47 : sal_uLong mnMaxObjDisplaySize;
48 : sal_uLong mnUsedDisplaySize;
49 :
50 : sal_Bool ImplFreeDisplayCacheSpace( sal_uLong nSizeToFree );
51 : GraphicCacheEntry* ImplGetCacheEntry( const GraphicObject& rObj );
52 :
53 :
54 : DECL_LINK( ReleaseTimeoutHdl, Timer* pTimer );
55 :
56 : public:
57 :
58 : GraphicCache(
59 : sal_uLong nDisplayCacheSize = 10000000UL,
60 : sal_uLong nMaxObjDisplayCacheSize = 2400000UL
61 : );
62 :
63 : ~GraphicCache();
64 :
65 : public:
66 :
67 : void AddGraphicObject(
68 : const GraphicObject& rObj,
69 : Graphic& rSubstitute,
70 : const OString* pID,
71 : const GraphicObject* pCopyObj
72 : );
73 :
74 : void ReleaseGraphicObject( const GraphicObject& rObj );
75 :
76 : void GraphicObjectWasSwappedOut( const GraphicObject& rObj );
77 : sal_Bool FillSwappedGraphicObject( const GraphicObject& rObj, Graphic& rSubstitute );
78 : void GraphicObjectWasSwappedIn( const GraphicObject& rObj );
79 :
80 : OString GetUniqueID( const GraphicObject& rObj ) const;
81 :
82 : public:
83 :
84 : void SetMaxDisplayCacheSize( sal_uLong nNewCacheSize );
85 0 : sal_uLong GetMaxDisplayCacheSize() const { return mnMaxDisplaySize; };
86 :
87 : void SetMaxObjDisplayCacheSize(
88 : sal_uLong nNewMaxObjSize,
89 : sal_Bool bDestroyGreaterCached = sal_False
90 : );
91 :
92 0 : sal_uLong GetMaxObjDisplayCacheSize() const { return mnMaxObjDisplaySize; }
93 :
94 0 : sal_uLong GetUsedDisplayCacheSize() const { return mnUsedDisplaySize; }
95 0 : sal_uLong GetFreeDisplayCacheSize() const { return( mnMaxDisplaySize - mnUsedDisplaySize ); }
96 :
97 : void SetCacheTimeout( sal_uLong nTimeoutSeconds );
98 0 : sal_uLong GetCacheTimeout() const { return mnReleaseTimeoutSeconds; }
99 :
100 : sal_Bool IsDisplayCacheable(
101 : OutputDevice* pOut,
102 : const Point& rPt,
103 : const Size& rSz,
104 : const GraphicObject& rObj,
105 : const GraphicAttr& rAttr
106 : ) const;
107 :
108 : sal_Bool IsInDisplayCache(
109 : OutputDevice* pOut,
110 : const Point& rPt,
111 : const Size& rSz,
112 : const GraphicObject& rObj,
113 : const GraphicAttr& rAttr
114 : ) const;
115 :
116 : sal_Bool CreateDisplayCacheObj(
117 : OutputDevice* pOut,
118 : const Point& rPt,
119 : const Size& rSz,
120 : const GraphicObject& rObj,
121 : const GraphicAttr& rAttr,
122 : const BitmapEx& rBmpEx
123 : );
124 :
125 : sal_Bool CreateDisplayCacheObj(
126 : OutputDevice* pOut,
127 : const Point& rPt,
128 : const Size& rSz,
129 : const GraphicObject& rObj,
130 : const GraphicAttr& rAttr,
131 : const GDIMetaFile& rMtf
132 : );
133 :
134 : sal_Bool DrawDisplayCacheObj(
135 : OutputDevice* pOut,
136 : const Point& rPt,
137 : const Size& rSz,
138 : const GraphicObject& rObj,
139 : const GraphicAttr& rAttr
140 : );
141 : };
142 :
143 : #endif // INCLUDED_SVTOOLS_SOURCE_GRAPHIC_GRFCACHE_HXX
144 :
145 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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