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1 | /////////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/palmos/prefconf.cpp | |
3 | // Purpose: wxPrefConfig implementation | |
4 | // Author: Wlodzimierz ABX Skiba | |
5 | // Modified by: | |
6 | // Created: 28.12.2004 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Wlodzimierz Skiba | |
9 | // License: wxWindows licence | |
10 | /////////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // For compilers that support precompilation, includes "wx.h". | |
13 | #include "wx/wxprec.h" | |
14 | ||
15 | #ifdef __BORLANDC__ | |
16 | #pragma hdrstop | |
17 | #endif | |
18 | ||
19 | #ifndef WX_PRECOMP | |
20 | #include "wx/string.h" | |
21 | #endif //WX_PRECOMP | |
22 | ||
23 | #if wxUSE_CONFIG && wxUSE_CONFIG_NATIVE | |
24 | ||
25 | #include "wx/config.h" | |
26 | ||
27 | // ============================================================================ | |
28 | // implementation | |
29 | // ============================================================================ | |
30 | ||
31 | /* | |
32 | ||
33 | http://www.palmos.com/dev/support/docs/protein_books/System_Management/PreferenceConcepts.html | |
34 | ||
35 | This wxPrefConfig class is a wxConfig wrapper around PalmOS Preferences | |
36 | functionality. Preferences allow to write any structure into its database so | |
37 | wxPrefConfig writes there all entries of single group into one Preference. | |
38 | To optimize read/write operations value of preference is cached. Cache is filled | |
39 | after each change of the path (including using path to group names in all | |
40 | operations) and it is flushed on destructor, any path change on or purpose | |
41 | with Flush(). | |
42 | ||
43 | Meaning of styles: | |
44 | ||
45 | wxCONFIG_USE_LOCAL_FILE => store config in "saved" preferences database | |
46 | (not to be backed up during a HotSync operation) | |
47 | wxCONFIG_USE_GLOBAL_FILE => store config in "unsaved" preferences database | |
48 | (backed up during a HotSync operation) | |
49 | ||
50 | ||
51 | Each Preference is an array of chars. First unsigned char describes | |
52 | number N of chars used for Preference size. Next N chars (string) contains | |
53 | length of rest of Preference. Preference consists in serie of entries which | |
54 | should be read in loop until in reaches end of Preference. | |
55 | ||
56 | Each entry is an set of chars with following structure: | |
57 | 1. name (null terminated) | |
58 | 2. type (single char): b,s,g,l,d (see value) | |
59 | 3. value | |
60 | - for type="b" (bool) it os "0" or "1" | |
61 | - for type="s" (string) it is null terminated set of chars | |
62 | - for type="g" (subgroup) as for "s" but string is converted to | |
63 | uint16_t for id parameter of ::PrefGetAppPreferences() | |
64 | - for type="l" (long) as for "s" but string is converted to long | |
65 | - for type="d" (double) as for "s" but string is converted to double | |
66 | - otherwise it is "" | |
67 | ||
68 | So all together first Read in group needs 3 reading from Preference: | |
69 | 1. take the length N of length | |
70 | 2. take the length M of the group content | |
71 | 3. take the group content | |
72 | and all it is in single Preference to not overload Preferences database. | |
73 | As long as each next Read/Write is performed in the same group then none | |
74 | access to Preferences is performed. Flushing needs only single writing to | |
75 | databease because all 3 parts of Preference can be prepared in memory. | |
76 | ||
77 | NOTE: wxPrefConfig can read/write only its own entries. It is impossible to | |
78 | know structures of Preferences of other non wxW applications. | |
79 | ||
80 | */ | |
81 | ||
82 | // ---------------------------------------------------------------------------- | |
83 | // ctor/dtor | |
84 | // ---------------------------------------------------------------------------- | |
85 | IMPLEMENT_ABSTRACT_CLASS(wxPrefConfig, wxConfigBase) | |
86 | ||
87 | wxPrefConfig::wxPrefConfig(const wxString& appName, const wxString& vendorName, | |
88 | const wxString& strLocal, const wxString& strGlobal, | |
89 | long style) | |
90 | : wxConfigBase(appName, vendorName, strLocal, strGlobal, style) | |
91 | { | |
92 | } | |
93 | ||
94 | // ---------------------------------------------------------------------------- | |
95 | // path management | |
96 | // ---------------------------------------------------------------------------- | |
97 | ||
98 | void wxPrefConfig::SetPath(const wxString& strPath) | |
99 | { | |
100 | } | |
101 | ||
102 | // ---------------------------------------------------------------------------- | |
103 | // enumeration (works only with current group) | |
104 | // ---------------------------------------------------------------------------- | |
105 | ||
106 | bool wxPrefConfig::GetFirstGroup(wxString& str, long& lIndex) const | |
107 | { | |
108 | } | |
109 | ||
110 | bool wxPrefConfig::GetNextGroup(wxString& str, long& lIndex) const | |
111 | { | |
112 | /* TODO */ | |
113 | return false; | |
114 | } | |
115 | ||
116 | bool wxPrefConfig::GetFirstEntry(wxString& str, long& lIndex) const | |
117 | { | |
118 | /* TODO */ | |
119 | return false; | |
120 | } | |
121 | ||
122 | bool wxPrefConfig::GetNextEntry(wxString& str, long& lIndex) const | |
123 | { | |
124 | /* TODO */ | |
125 | return false; | |
126 | } | |
127 | ||
128 | size_t wxPrefConfig::GetNumberOfEntries(bool WXUNUSED(bRecursive)) const | |
129 | { | |
130 | /* TODO */ | |
131 | return 0; | |
132 | } | |
133 | ||
134 | size_t wxPrefConfig::GetNumberOfGroups(bool WXUNUSED(bRecursive)) const | |
135 | { | |
136 | /* TODO */ | |
137 | return 0; | |
138 | } | |
139 | ||
140 | // ---------------------------------------------------------------------------- | |
141 | // tests for existence | |
142 | // ---------------------------------------------------------------------------- | |
143 | ||
144 | bool wxPrefConfig::HasGroup(const wxString& key) const | |
145 | { | |
146 | /* TODO */ | |
147 | return false; | |
148 | } | |
149 | ||
150 | bool wxPrefConfig::HasEntry(const wxString& key) const | |
151 | { | |
152 | /* TODO */ | |
153 | return false; | |
154 | } | |
155 | ||
156 | wxConfigBase::EntryType wxPrefConfig::GetEntryType(const wxString& key) const | |
157 | { | |
158 | /* TODO */ | |
159 | return wxConfigBase::Type_Unknown; | |
160 | } | |
161 | ||
162 | // ---------------------------------------------------------------------------- | |
163 | // reading/writing | |
164 | // ---------------------------------------------------------------------------- | |
165 | ||
166 | bool wxPrefConfig::DoReadString(const wxString& key, wxString *pStr) const | |
167 | { | |
168 | /* TODO */ | |
169 | return false; | |
170 | } | |
171 | ||
172 | // this exactly reproduces the string version above except for ExpandEnvVars(), | |
173 | // we really should avoid this code duplication somehow... | |
174 | ||
175 | bool wxPrefConfig::DoReadLong(const wxString& key, long *plResult) const | |
176 | { | |
177 | /* TODO */ | |
178 | return false; | |
179 | } | |
180 | ||
181 | bool DoReadBinary(const wxString& key, wxMemoryBuffer *buf) const | |
182 | { | |
183 | /* TODO */ | |
184 | return false; | |
185 | } | |
186 | ||
187 | bool wxPrefConfig::DoWriteString(const wxString& key, const wxString& szValue) | |
188 | { | |
189 | /* TODO */ | |
190 | return false; | |
191 | } | |
192 | ||
193 | bool wxPrefConfig::DoWriteLong(const wxString& key, long lValue) | |
194 | { | |
195 | /* TODO */ | |
196 | return false; | |
197 | } | |
198 | ||
199 | bool DoWriteBinary(const wxString& key, const wxMemoryBuffer& buf) | |
200 | { | |
201 | /* TODO */ | |
202 | return false; | |
203 | } | |
204 | ||
205 | // ---------------------------------------------------------------------------- | |
206 | // renaming | |
207 | // ---------------------------------------------------------------------------- | |
208 | ||
209 | bool wxPrefConfig::RenameEntry(const wxString& oldName, const wxString& newName) | |
210 | { | |
211 | /* TODO */ | |
212 | return false; | |
213 | } | |
214 | ||
215 | bool wxPrefConfig::RenameGroup(const wxString& oldName, const wxString& newName) | |
216 | { | |
217 | /* TODO */ | |
218 | return false; | |
219 | } | |
220 | ||
221 | // ---------------------------------------------------------------------------- | |
222 | // deleting | |
223 | // ---------------------------------------------------------------------------- | |
224 | ||
225 | bool wxPrefConfig::DeleteEntry(const wxString& value, bool bGroupIfEmptyAlso) | |
226 | { | |
227 | /* TODO */ | |
228 | return false; | |
229 | } | |
230 | ||
231 | bool wxPrefConfig::DeleteGroup(const wxString& key) | |
232 | { | |
233 | /* TODO */ | |
234 | return false; | |
235 | } | |
236 | ||
237 | bool wxPrefConfig::DeleteAll() | |
238 | { | |
239 | /* TODO */ | |
240 | return false; | |
241 | } | |
242 | ||
243 | #endif // wxUSE_CONFIG && wxUSE_CONFIG_NATIVE |