diff options
Diffstat (limited to 'src/FbTk/LResource.cc')
-rw-r--r-- | src/FbTk/LResource.cc | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/src/FbTk/LResource.cc b/src/FbTk/LResource.cc new file mode 100644 index 0000000..fd8ef2f --- /dev/null +++ b/src/FbTk/LResource.cc | |||
@@ -0,0 +1,163 @@ | |||
1 | // LResource: Fluxbox Resource implementation in lua | ||
2 | // Copyright (C) 2010 - 2011 Pavel Labath | ||
3 | // | ||
4 | // Permission is hereby granted, free of charge, to any person obtaining a | ||
5 | // copy of this software and associated documentation files (the "Software"), | ||
6 | // to deal in the Software without restriction, including without limitation | ||
7 | // the rights to use, copy, modify, merge, publish, distribute, sublicense, | ||
8 | // and/or sell copies of the Software, and to permit persons to whom the | ||
9 | // Software is furnished to do so, subject to the following conditions: | ||
10 | // | ||
11 | // The above copyright notice and this permission notice shall be included in | ||
12 | // all copies or substantial portions of the Software. | ||
13 | // | ||
14 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
15 | // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
16 | // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | ||
17 | // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
18 | // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
19 | // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | ||
20 | // DEALINGS IN THE SOFTWARE. | ||
21 | |||
22 | |||
23 | #include <config.h> | ||
24 | |||
25 | #include "LResource.hh" | ||
26 | |||
27 | #include "Resource.hh" | ||
28 | #include "Luamm.hh" | ||
29 | |||
30 | extern const char LResourceHelper[]; | ||
31 | extern const unsigned int LResourceHelper_size; | ||
32 | |||
33 | namespace FbTk { | ||
34 | |||
35 | namespace { | ||
36 | const char make_root[] = "FbTk::make_root"; | ||
37 | const char register_resource[] = "FbTk::register_resource"; | ||
38 | const char dump_resources[] = "FbTk::dump_resources"; | ||
39 | const char resource_metatable[] = "FbTk::resource_metatable"; | ||
40 | |||
41 | int readResource(lua::state *l) { | ||
42 | Resource_base *r = *static_cast<Resource_base **>(l->touserdata(-1)); | ||
43 | l->pop(); | ||
44 | |||
45 | if(r != NULL) | ||
46 | r->pushToLua(*l); | ||
47 | else | ||
48 | l->pushnil(); | ||
49 | |||
50 | return 1; | ||
51 | } | ||
52 | |||
53 | int writeResource(lua::state *l) { | ||
54 | Resource_base *r = *static_cast<Resource_base **>(l->touserdata(-2)); | ||
55 | l->replace(-2); | ||
56 | |||
57 | if(r != NULL) | ||
58 | r->setFromLua(*l); | ||
59 | else | ||
60 | l->pop(); | ||
61 | |||
62 | return 0; | ||
63 | } | ||
64 | } | ||
65 | |||
66 | void LResourceManager::initState(lua::state &l) { | ||
67 | l.checkstack(6); | ||
68 | lua::stack_sentry s(l); | ||
69 | |||
70 | l.loadstring(LResourceHelper, LResourceHelper_size); | ||
71 | l.pushfunction(&readResource); | ||
72 | l.pushfunction(&writeResource); | ||
73 | l.newtable(); { | ||
74 | l.newtable(); { | ||
75 | l.pushvalue(-2); | ||
76 | l.setfield(-2, "__metatable"); | ||
77 | } l.setfield(lua::REGISTRYINDEX, resource_metatable); | ||
78 | } | ||
79 | l.call(3, 3); | ||
80 | l.setfield(lua::REGISTRYINDEX, dump_resources); | ||
81 | l.setfield(lua::REGISTRYINDEX, register_resource); | ||
82 | l.setfield(lua::REGISTRYINDEX, make_root); | ||
83 | } | ||
84 | |||
85 | LResourceManager::LResourceManager(lua::state &l, const std::string &root) | ||
86 | : m_l(&l), m_root(root) { | ||
87 | l.checkstack(2); | ||
88 | lua::stack_sentry s(l); | ||
89 | |||
90 | l.getfield(lua::REGISTRYINDEX, make_root); | ||
91 | l.pushstring(root); | ||
92 | l.call(1, 0); | ||
93 | } | ||
94 | |||
95 | bool LResourceManager::save(const char *filename, const char *) { | ||
96 | m_l->checkstack(3); | ||
97 | lua::stack_sentry s(*m_l); | ||
98 | |||
99 | m_l->getfield(lua::REGISTRYINDEX, dump_resources); | ||
100 | m_l->getfield(lua::GLOBALSINDEX, m_root.c_str()); | ||
101 | m_l->pushstring(filename); | ||
102 | m_l->call(2, 0); | ||
103 | |||
104 | return true; // FIXME | ||
105 | } | ||
106 | |||
107 | void LResourceManager::addResource(Resource_base &r) { | ||
108 | m_l->checkstack(5); | ||
109 | lua::stack_sentry s(*m_l); | ||
110 | |||
111 | m_resourcelist.push_back(&r); | ||
112 | m_resourcelist.unique(); | ||
113 | |||
114 | m_l->getfield(lua::REGISTRYINDEX, register_resource); | ||
115 | m_l->getfield(lua::GLOBALSINDEX, m_root.c_str()); | ||
116 | m_l->pushstring(r.name()); | ||
117 | m_l->createuserdata<Resource_base *>(&r); { | ||
118 | m_l->getfield(lua::REGISTRYINDEX, resource_metatable); | ||
119 | m_l->setmetatable(-2); | ||
120 | } | ||
121 | m_l->call(3, 0); | ||
122 | } | ||
123 | |||
124 | void LResourceManager::removeResource(Resource_base &r) { | ||
125 | m_l->checkstack(5); | ||
126 | lua::stack_sentry s(*m_l); | ||
127 | |||
128 | m_l->getfield(lua::REGISTRYINDEX, register_resource); | ||
129 | m_l->getfield(lua::GLOBALSINDEX, m_root.c_str()); | ||
130 | m_l->pushstring(r.name()); | ||
131 | r.pushToLua(*m_l); | ||
132 | m_l->call(3, 1); | ||
133 | *static_cast<Resource_base **>(m_l->touserdata(-1)) = NULL; | ||
134 | m_l->pop(); | ||
135 | |||
136 | m_resourcelist.remove(&r); | ||
137 | } | ||
138 | |||
139 | Resource_base *LResourceManager::findResource(const std::string &resname) { | ||
140 | // find resource name | ||
141 | ResourceList::const_iterator i = m_resourcelist.begin(); | ||
142 | ResourceList::const_iterator i_end = m_resourcelist.end(); | ||
143 | for (; i != i_end; ++i) { | ||
144 | if ((*i)->name() == resname || | ||
145 | (*i)->altName() == resname) | ||
146 | return *i; | ||
147 | } | ||
148 | return 0; | ||
149 | } | ||
150 | |||
151 | const Resource_base *LResourceManager::findResource(const std::string &resname) const { | ||
152 | // find resource name | ||
153 | ResourceList::const_iterator i = m_resourcelist.begin(); | ||
154 | ResourceList::const_iterator i_end = m_resourcelist.end(); | ||
155 | for (; i != i_end; ++i) { | ||
156 | if ((*i)->name() == resname || | ||
157 | (*i)->altName() == resname) | ||
158 | return *i; | ||
159 | } | ||
160 | return 0; | ||
161 | } | ||
162 | |||
163 | } // end namespace FbTk | ||