diff options
author | Robin Gareus <robin@gareus.org> | 2017-02-17 18:56:18 +0100 |
---|---|---|
committer | Robin Gareus <robin@gareus.org> | 2017-02-17 18:58:11 +0100 |
commit | 472f14c80350455cd492c867104941e884f74034 (patch) | |
tree | 0c220e93db24a0e972960252f80c8f59acea4b9b /gtk2_ardour/luainstance.cc | |
parent | 149634c2cf61a4ecaef4b86b84f8531ce0ce51a0 (diff) |
Allow Lua action scripts to provide a button icon
Diffstat (limited to 'gtk2_ardour/luainstance.cc')
-rw-r--r-- | gtk2_ardour/luainstance.cc | 75 |
1 files changed, 66 insertions, 9 deletions
diff --git a/gtk2_ardour/luainstance.cc b/gtk2_ardour/luainstance.cc index 01b311e91d..966715edc0 100644 --- a/gtk2_ardour/luainstance.cc +++ b/gtk2_ardour/luainstance.cc @@ -851,6 +851,7 @@ LuaInstance::LuaInstance () LuaInstance::~LuaInstance () { delete _lua_call_action; + delete _lua_render_icon; delete _lua_add_action; delete _lua_del_action; delete _lua_get_action; @@ -866,22 +867,28 @@ LuaInstance::init () { lua.do_command ( "function ScriptManager ()" - " local self = { scripts = {}, instances = {} }" + " local self = { scripts = {}, instances = {}, icons = {} }" "" " local remove = function (id)" " self.scripts[id] = nil" " self.instances[id] = nil" + " self.icons[id] = nil" " end" "" - " local addinternal = function (i, n, s, f, a)" + " local addinternal = function (i, n, s, f, c, a)" " assert(type(i) == 'number', 'id must be numeric')" " assert(type(n) == 'string', 'Name must be string')" " assert(type(s) == 'string', 'Script must be string')" " assert(type(f) == 'function', 'Factory is a not a function')" " assert(type(a) == 'table' or type(a) == 'nil', 'Given argument is invalid')" - " self.scripts[i] = { ['n'] = n, ['s'] = s, ['f'] = f, ['a'] = a }" + " self.scripts[i] = { ['n'] = n, ['s'] = s, ['f'] = f, ['a'] = a, ['c'] = c }" " local env = _ENV; env.f = nil env.debug = nil os.exit = nil require = nil dofile = nil loadfile = nil package = nil" " self.instances[i] = load (string.dump(f, true), nil, nil, env)(a)" + " if type(c) == 'function' then" + " self.icons[i] = load (string.dump(c, true), nil, nil, env)(a)" + " else" + " self.icons[i] = nil" + " end" " end" "" " local call = function (id)" @@ -895,17 +902,26 @@ LuaInstance::init () " collectgarbage()" " end" "" - " local add = function (i, n, s, b, a)" + " local icon = function (id, ...)" + " if type(self.icons[id]) == 'function' then" + " pcall (self.icons[id], ...)" + " end" + " collectgarbage()" + " end" + "" + " local add = function (i, n, s, b, c, a)" " assert(type(b) == 'string', 'ByteCode must be string')" - " load (b)()" // assigns f + " f = nil load (b)()" // assigns f + " icn = nil load (c)()" // may assign "icn" " assert(type(f) == 'string', 'Assigned ByteCode must be string')" - " addinternal (i, n, s, load(f), a)" + " addinternal (i, n, s, load(f), type(icn) ~= \"string\" or icn == '' or load(icn), a)" " end" "" " local get = function (id)" " if type(self.scripts[id]) == 'table' then" " return { ['name'] = self.scripts[id]['n']," " ['script'] = self.scripts[id]['s']," + " ['icon'] = type(self.scripts[id]['c']) == 'function'," " ['args'] = self.scripts[id]['a'] }" " end" " return nil" @@ -934,6 +950,8 @@ LuaInstance::init () " return rv;" " elseif type(value) == \"function\" then" " return rv .. string.format(\"%q\", string.dump(value, true))" + " elseif type(value) == \"boolean\" then" + " return rv .. tostring (value)" " else" " error('cannot save a ' .. type(value))" " end" @@ -947,6 +965,7 @@ LuaInstance::init () " local clear = function ()" " self.scripts = {}" " self.instances = {}" + " self.icons = {}" " collectgarbage()" " end" "" @@ -954,13 +973,13 @@ LuaInstance::init () " clear()" " load (state)()" " for i, s in pairs (scripts) do" - " addinternal (i, s['n'], s['s'], load(s['f']), s['a'])" + " addinternal (i, s['n'], s['s'], load(s['f']), type (s['c']) ~= \"string\" or s['c'] == '' or load (s['c']), s['a'])" " end" " collectgarbage()" " end" "" " return { call = call, add = add, remove = remove, get = get," - " restore = restore, save = save, clear = clear}" + " restore = restore, save = save, clear = clear, icon = icon}" " end" " " " manager = ScriptManager ()" @@ -978,6 +997,7 @@ LuaInstance::init () _lua_del_action = new luabridge::LuaRef(lua_mgr["remove"]); _lua_get_action = new luabridge::LuaRef(lua_mgr["get"]); _lua_call_action = new luabridge::LuaRef(lua_mgr["call"]); + _lua_render_icon = new luabridge::LuaRef(lua_mgr["icon"]); _lua_save = new luabridge::LuaRef(lua_mgr["save"]); _lua_load = new luabridge::LuaRef(lua_mgr["restore"]); _lua_clear = new luabridge::LuaRef(lua_mgr["clear"]); @@ -1184,6 +1204,23 @@ LuaInstance::call_action (const int id) } } +void +LuaInstance::render_action_icon (cairo_t* cr, int w, int h, uint32_t c, void* i) { + int ii = reinterpret_cast<uintptr_t> (i); + instance()->render_icon (ii, cr, w, h, c); +} + +void +LuaInstance::render_icon (int i, cairo_t* cr, int w, int h, uint32_t clr) +{ + Cairo::Context ctx (cr); + try { + (*_lua_render_icon)(i + 1, (Cairo::Context *)&ctx, w, h, clr); + } catch (luabridge::LuaException const& e) { + cerr << "LuaException:" << e.what () << endl; + } +} + bool LuaInstance::set_lua_action ( const int id, @@ -1196,12 +1233,13 @@ LuaInstance::set_lua_action ( // get bytcode of factory-function in a sandbox // (don't allow scripts to interfere) const std::string& bytecode = LuaScripting::get_factory_bytecode (script); + const std::string& iconfunc = LuaScripting::get_factory_bytecode (script, "icon", "icn"); luabridge::LuaRef tbl_arg (luabridge::newTable(L)); for (LuaScriptParamList::const_iterator i = args.begin(); i != args.end(); ++i) { if ((*i)->optional && !(*i)->is_set) { continue; } tbl_arg[(*i)->name] = (*i)->value; } - (*_lua_add_action)(id + 1, name, script, bytecode, tbl_arg); + (*_lua_add_action)(id + 1, name, script, bytecode, iconfunc, tbl_arg); ActionChanged (id, name); /* EMIT SIGNAL */ } catch (luabridge::LuaException const& e) { cerr << "LuaException:" << e.what () << endl; @@ -1259,6 +1297,23 @@ LuaInstance::lua_action_names () } bool +LuaInstance::lua_action_has_icon (const int id) +{ + try { + luabridge::LuaRef ref ((*_lua_get_action)(id + 1)); + if (ref.isNil()) { + return false; + } + if (ref["icon"].isBoolean()) { + return ref["icon"].cast<bool>(); + } + } catch (luabridge::LuaException const& e) { + cerr << "LuaException:" << e.what () << endl; + } + return false; +} + +bool LuaInstance::lua_action (const int id, std::string& name, std::string& script, LuaScriptParamList& args) { try { @@ -1570,6 +1625,8 @@ LuaCallback::init (void) " return rv;" " elseif type(value) == \"function\" then" " return rv .. string.format(\"%q\", string.dump(value, true))" + " elseif type(value) == \"boolean\" then" + " return rv .. tostring (value)" " else" " error('cannot save a ' .. type(value))" " end" |