3 Copyright (C) 2017-8 rubenwardy <rw@rubenwardy.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as published by
7 the Free Software Foundation; either version 2.1 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21 #include "itemstackmetadata.h"
22 #include "util/serialize.h"
23 #include "util/strfnd.h"
25 #define DESERIALIZE_START '\x01'
26 #define DESERIALIZE_KV_DELIM '\x02'
27 #define DESERIALIZE_PAIR_DELIM '\x03'
28 #define DESERIALIZE_START_STR "\x01"
29 #define DESERIALIZE_KV_DELIM_STR "\x02"
30 #define DESERIALIZE_PAIR_DELIM_STR "\x03"
32 #define TOOLCAP_KEY "tool_capabilities"
34 void ItemStackMetadata::clear()
37 updateToolCapabilities();
40 bool ItemStackMetadata::setString(const std::string
&name
, const std::string
&var
)
42 bool result
= Metadata::setString(name
, var
);
43 if (name
== TOOLCAP_KEY
)
44 updateToolCapabilities();
48 void ItemStackMetadata::serialize(std::ostream
&os
) const
50 std::ostringstream os2
;
51 os2
<< DESERIALIZE_START
;
52 for (const auto &stringvar
: m_stringvars
) {
53 if (!stringvar
.first
.empty() || !stringvar
.second
.empty())
54 os2
<< stringvar
.first
<< DESERIALIZE_KV_DELIM
55 << stringvar
.second
<< DESERIALIZE_PAIR_DELIM
;
57 os
<< serializeJsonStringIfNeeded(os2
.str());
60 void ItemStackMetadata::deSerialize(std::istream
&is
)
62 std::string in
= deSerializeJsonStringIfNeeded(is
);
67 if (in
[0] == DESERIALIZE_START
) {
70 while (!fnd
.at_end()) {
71 std::string name
= fnd
.next(DESERIALIZE_KV_DELIM_STR
);
72 std::string var
= fnd
.next(DESERIALIZE_PAIR_DELIM_STR
);
73 m_stringvars
[name
] = var
;
76 // BACKWARDS COMPATIBILITY
77 m_stringvars
[""] = in
;
80 updateToolCapabilities();
83 void ItemStackMetadata::updateToolCapabilities()
85 if (contains(TOOLCAP_KEY
)) {
86 toolcaps_overridden
= true;
87 toolcaps_override
= ToolCapabilities();
88 std::istringstream
is(getString(TOOLCAP_KEY
));
89 toolcaps_override
.deserializeJson(is
);
91 toolcaps_overridden
= false;
95 void ItemStackMetadata::setToolCapabilities(const ToolCapabilities
&caps
)
97 std::ostringstream os
;
98 caps
.serializeJson(os
);
99 setString(TOOLCAP_KEY
, os
.str());
102 void ItemStackMetadata::clearToolCapabilities()
104 setString(TOOLCAP_KEY
, "");