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
|
// Resource.cc
// Copyright (c) 2002 - 2003 Henrik Kinnunen (fluxgen(at)users.sourceforge.net)
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
// $Id: Resource.cc,v 1.5 2004/01/19 18:26:04 fluxgen Exp $
#include "XrmDatabaseHelper.hh"
#include "Resource.hh"
#include <iostream>
#include <cassert>
using namespace std;
namespace FbTk {
ResourceManager::ResourceManager(const char *filename, bool lock_db) :
m_db_lock(0),
m_database(0),
m_filename(filename ? filename : "")
{
ensureXrmIsInitialize();
if (lock_db)
lock();
}
ResourceManager::~ResourceManager() {
if (m_database)
delete m_database;
}
bool ResourceManager::m_init = false;
/**
reloads all resources from resourcefile
@return true on success else false
*/
bool ResourceManager::load(const char *filename) {
m_filename = filename;
// force reload (lock will ensure it exists)
if (m_database) {
delete m_database;
m_database = 0;
}
lock();
if (!m_database) {
unlock();
return false;
}
XrmValue value;
char *value_type;
//get list and go throu all the resources and load them
ResourceList::iterator i = m_resourcelist.begin();
ResourceList::iterator i_end = m_resourcelist.end();
for (; i != i_end; ++i) {
Resource_base *resource = *i;
if (XrmGetResource(**m_database, resource->name().c_str(),
resource->altName().c_str(), &value_type, &value))
resource->setFromString(value.addr);
else
resource->setDefaultValue();
}
unlock();
return true;
}
/**
Saves all the resource to a file
@return 0 on success else negative value representing the error
*/
bool ResourceManager::save(const char *filename, const char *mergefilename) {
assert(filename);
// empty database
XrmDatabaseHelper database;
string rc_string;
ResourceList::iterator i = m_resourcelist.begin();
ResourceList::iterator i_end = m_resourcelist.end();
//write all resources to database
for (; i != i_end; ++i) {
Resource_base *resource = *i;
rc_string = resource->name() + string(": ") + resource->getString();
XrmPutLineResource(&*database, rc_string.c_str());
}
if (database==0)
return false;
//check if we want to merge a database
if (mergefilename) {
// force reload of file
m_filename = mergefilename;
if (m_database)
delete m_database;
m_database = 0;
lock();
if (!m_database) {
unlock();
return false;
}
XrmMergeDatabases(*database, &**m_database); // merge databases
XrmPutFileDatabase(**m_database, filename); // save database to file
// don't try to destroy the database (XrmMergeDatabases destroys it)
*database = 0;
unlock();
} else // save database to file
XrmPutFileDatabase(*database, filename);
m_filename = filename;
return true;
}
Resource_base *ResourceManager::findResource(const std::string &resname) {
// find resource name
ResourceList::iterator i = m_resourcelist.begin();
ResourceList::iterator i_end = m_resourcelist.end();
for (; i != i_end; ++i) {
if ((*i)->name() == resname ||
(*i)->altName() == resname)
return *i;
}
return 0;
}
string ResourceManager::resourceValue(const std::string &resname) {
Resource_base *res = findResource(resname);
if (res != 0)
return res->getString();
return "";
}
void ResourceManager::setResourceValue(const std::string &resname, const std::string &value) {
Resource_base *res = findResource(resname);
if (res != 0)
res->setFromString(value.c_str());
}
void ResourceManager::ensureXrmIsInitialize() {
if (!m_init) {
XrmInitialize();
m_init = true;
}
}
ResourceManager &ResourceManager::lock() {
++m_db_lock;
// if the lock was zero, then load the database
if ((m_db_lock == 1 || !m_database) &&
m_filename != "") {
m_database = new XrmDatabaseHelper(m_filename.c_str());
// check that the database loaded ok
if (m_database && *m_database == 0) {
// didn't work
delete m_database;
m_database = 0;
}
}
return *this;
}
void ResourceManager::unlock() {
if (--m_db_lock == 0 && m_database) {
delete m_database;
m_database = 0;
}
}
}; // end namespace FbTk
|
