summaryrefslogtreecommitdiff
path: root/sw/inc/fmtmeta.hxx
blob: b708fc8ef2fec99257303aad88f901a5fae669f0 (plain)
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
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

#ifndef SW_FMTMETA_HXX
#define SW_FMTMETA_HXX

#include <cppuhelper/weakref.hxx>

#include <svl/poolitem.hxx>
#include <sfx2/Metadatable.hxx>

#include <boost/shared_ptr.hpp>
#include <boost/weak_ptr.hpp>

#include <vector>


namespace com { namespace sun { namespace star {
    namespace text {
        class XTextField;
    }
}}}


/**
 * The classes that make up a meta entity are:
 * <dl>
 *   <dt>SwTxtMeta</dt><dd>the text hint</dd>
 *   <dt>SwFmtMeta</dt><dd>the pool item</dd>
 *   <dt>sw::Meta</dt><dd>the metadatable entity itself</dd>
 *   <dt>SwXMeta</dt><dd>the UNO wrapper object</dd>
 * </dl>
 *
 * The text hint contains the pool item (as usual) and has a pointer to the
 * text node at which it is attached.
 * The pool item has a shared pointer to the metadatable entity, and a reverse
 * pointer to the text attribute at which it is attached.
 * The pool item is non-poolable; it may only be attached to one text
 * attribute.
 * Of all the pool items that refer to a metadatable entity, only one may be
 * in the document content at any time. Others may be in the undo array, or in
 * undo objects.
 * The metadatable entity has a reverse pointer to the pool item that is
 * currently in the document. It also registers as a client at the text node
 * at which it is attached via this pool item and its text attribute.
 * The UNO wrapper object registers as a client at the metadatable entity.
 *
 * Copying the metadatable entity proceeds in the following way:
 * <ol>
 *   <li>The pool item is cloned (because it is non-poolable); the clone
 *       points to the same metadatable entity, but the metadatable entity's
 *       reverse pointer is unchanged.</li>
 *   <li>A new text hint is created, taking over the new pool item.
 *       Unfortunately, this also makes the metadatable entity point at the
 *       cloned pool item.</li>
 *   <li>The text hint is inserted into the hints array of some text node.</li>
 *   <li>The DoCopy() method must be called at the new pool item:
 *       it will clone the metadatable entity (using RegisterAsCopyOf),
 *       and fix the reverse pointer of the original to point at the
 *       original pool item.
 *       This is necessary, because first, a metadatable entity may
 *       only be inserted once into a document, and second, the copy may be
 *       inserted into a different document than the source document!</li>
 * </ol>
 */

class SwTxtMeta;
class SwXMeta;
class SwXMetaField;
namespace sw {
    class Meta;
}

class SwFmtMeta
    : public SfxPoolItem
{
private:
    friend class SwTxtMeta; // needs SetTxtAttr
    friend class ::sw::Meta; // needs m_pTxtAttr

    ::boost::shared_ptr< ::sw::Meta > m_pMeta;
    SwTxtMeta * m_pTxtAttr;

    SwTxtMeta * GetTxtAttr() { return m_pTxtAttr; }
    void SetTxtAttr(SwTxtMeta * const i_pTxtAttr);

    explicit SwFmtMeta( const USHORT i_nWhich );

public:
    // takes ownership
    explicit SwFmtMeta( ::boost::shared_ptr< ::sw::Meta > const & i_pMeta,
                        const USHORT i_nWhich );
    virtual ~SwFmtMeta();

    // SfxPoolItem
    virtual int              operator==( const SfxPoolItem & ) const;
    virtual SfxPoolItem *    Clone( SfxItemPool *pPool = 0 ) const;
//    TYPEINFO();

    /// notify clients registered at m_pMeta that this meta is being (re-)moved
    void NotifyChangeTxtNode(SwTxtNode *const pTxtNode);
    static SwFmtMeta * CreatePoolDefault( const USHORT i_nWhich );
    ::sw::Meta * GetMeta() { return m_pMeta.get(); }
    /// this method <em>must</em> be called when the hint is actually copied
    void DoCopy( SwFmtMeta & rOriginalMeta );
};


namespace sw {

class MetaFieldManager;

class Meta
    : public ::sfx2::Metadatable
    , public SwModify
{
protected:
    friend class ::SwFmtMeta; // SetFmtMeta, NotifyChangeTxtNode
    friend class ::SwXMeta; // GetTxtNode, GetTxtAttr, Get/SetXMeta

    ::com::sun::star::uno::WeakReference<
        ::com::sun::star::rdf::XMetadatable> m_wXMeta;

    SwFmtMeta * m_pFmt;

    SwTxtMeta * GetTxtAttr() const;
    SwTxtNode * GetTxtNode() const; // returns 0 if not in document (undo)

    SwFmtMeta * GetFmtMeta() const { return m_pFmt; }
    void SetFmtMeta( SwFmtMeta * const i_pFmt ) { m_pFmt = i_pFmt; };

    void NotifyChangeTxtNode();

    ::com::sun::star::uno::WeakReference<
        ::com::sun::star::rdf::XMetadatable> const& GetXMeta() const
            { return m_wXMeta; }
    void SetXMeta(::com::sun::star::uno::Reference<
                    ::com::sun::star::rdf::XMetadatable> const& xMeta)
            { m_wXMeta = xMeta; }

public:
    explicit Meta(SwFmtMeta * const i_pFmt = 0);
    virtual ~Meta();

    // SwClient
    virtual void Modify( SfxPoolItem *pOld, SfxPoolItem *pNew );

    // sfx2::Metadatable
    virtual ::sfx2::IXmlIdRegistry& GetRegistry();
    virtual bool IsInClipboard() const;
    virtual bool IsInUndo() const;
    virtual bool IsInContent() const;
    virtual ::com::sun::star::uno::Reference<
        ::com::sun::star::rdf::XMetadatable > MakeUnoObject();
};

class MetaField
    : public Meta
{
private:
    friend class ::SwFmtMeta;
    friend class ::SwXMetaField;
    friend class ::sw::MetaFieldManager;

    sal_uInt32 m_nNumberFormat;
    bool       m_bIsFixedLanguage;

    sal_uInt32 GetNumberFormat(::rtl::OUString const & rContent) const;
    void SetNumberFormat(sal_uInt32 nNumberFormat);
    bool IsFixedLanguage() const    { return m_bIsFixedLanguage; }
    void SetIsFixedLanguage(bool b) { m_bIsFixedLanguage = b; }

    explicit MetaField(SwFmtMeta * const i_pFmt = 0,
            const sal_uInt32 nNumberFormat = SAL_MAX_UINT32,
            const bool bIsFixedLanguage = false );

public:
    /// get prefix/suffix from the RDF repository. @throws RuntimeException
    void GetPrefixAndSuffix(
        ::rtl::OUString *const o_pPrefix, ::rtl::OUString *const o_pSuffix);
};

/** knows all meta-fields in the document. */
class MetaFieldManager
    : private ::boost::noncopyable
{
private:
    typedef ::std::vector< ::boost::weak_ptr<MetaField> > MetaFieldList_t;
    MetaFieldList_t m_MetaFields;

public:
    MetaFieldManager();
    ::boost::shared_ptr<MetaField> makeMetaField(
                SwFmtMeta * const i_pFmt = 0,
                const sal_uInt32 nNumberFormat = SAL_MAX_UINT32,
                const bool bIsFixedLanguage = false );
    /// get all meta fields
    ::std::vector< ::com::sun::star::uno::Reference<
        ::com::sun::star::text::XTextField> > getMetaFields();
};

} // namespace sw

#endif // SW_FMTMETA_HXX

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */