2009-04-26 10:46:09 +02:00
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/*
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* button.c - button managing
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*
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* Copyright © 2007-2009 Julien Danjou <julien@danjou.info>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#include "button.h"
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#include "common/tokenize.h"
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DO_LUA_TOSTRING(button_t, button, "button")
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/** Create a new mouse button bindings.
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* \param L The Lua VM state.
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* \return The number of elements pushed on stack.
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* \luastack
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* \lparam A table with modifiers keys, or a button to clone.
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2009-04-26 12:34:30 +02:00
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* \lparam A mouse button number, or 0 to match any button.
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2009-04-26 10:46:09 +02:00
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* \lparam A function to execute on click events.
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* \lparam A function to execute on release events.
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* \lreturn A mouse button binding.
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*/
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static int
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luaA_button_new(lua_State *L)
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{
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2009-04-26 12:34:13 +02:00
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xcb_button_t xbutton;
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2009-05-08 14:00:43 +02:00
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button_t *button;
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2009-07-28 10:29:30 +02:00
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lua_settop(L, 5);
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2009-04-26 10:46:09 +02:00
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luaA_checktable(L, 2);
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/* arg 3 is mouse button */
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2009-04-26 12:34:13 +02:00
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xbutton = luaL_checknumber(L, 3);
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2009-04-26 10:46:09 +02:00
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/* arg 4 and 5 are callback functions, check they are functions... */
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if(!lua_isnil(L, 4))
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luaA_checkfunction(L, 4);
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2009-07-28 10:29:30 +02:00
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if(!lua_isnil(L, 5))
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2009-04-26 10:46:09 +02:00
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luaA_checkfunction(L, 5);
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button = button_new(L);
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2009-07-28 10:29:30 +02:00
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button->press = luaA_object_ref_item(L, -1, 4);
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button->release = luaA_object_ref_item(L, -1, 4);
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2009-04-26 12:34:13 +02:00
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button->button = xbutton;
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2009-06-17 17:05:47 +02:00
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button->mod = luaA_tomodifiers(L, 2);
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2009-04-26 10:46:09 +02:00
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return 1;
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}
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/** Button object.
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* \param L The Lua VM state.
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* \return The number of elements pushed on stack.
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* \luastack
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* \lfield press The function called when button press event is received.
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* \lfield release The function called when button release event is received.
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2009-04-26 19:43:23 +02:00
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* \lfield button The mouse button number, or 0 for any button.
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2009-04-26 19:44:25 +02:00
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* \lfield modifiers The modifier key table that should be pressed while the
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* button is pressed.
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2009-04-26 10:46:09 +02:00
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*/
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static int
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luaA_button_index(lua_State *L)
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{
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if(luaA_usemetatable(L, 1, 2))
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return 1;
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size_t len;
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button_t *button = luaL_checkudata(L, 1, "button");
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const char *attr = luaL_checklstring(L, 2, &len);
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switch(a_tokenize(attr, len))
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{
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case A_TK_PRESS:
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2009-07-28 10:29:30 +02:00
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return luaA_object_push_item(L, 1, button->press);
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2009-04-26 10:46:09 +02:00
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case A_TK_RELEASE:
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2009-07-28 10:29:30 +02:00
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return luaA_object_push_item(L, 1, button->release);
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2009-04-26 10:46:09 +02:00
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case A_TK_BUTTON:
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lua_pushnumber(L, button->button);
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break;
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2009-04-26 19:44:25 +02:00
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case A_TK_MODIFIERS:
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luaA_pushmodifiers(L, button->mod);
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break;
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2009-04-26 10:46:09 +02:00
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default:
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2009-04-26 19:43:54 +02:00
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return 0;
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2009-04-26 10:46:09 +02:00
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}
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return 1;
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}
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/** Button object.
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* \param L The Lua VM state.
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* \return The number of elements pushed on stack.
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* \luastack
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*/
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static int
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luaA_button_newindex(lua_State *L)
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{
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if(luaA_usemetatable(L, 1, 2))
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return 1;
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size_t len;
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button_t *button = luaL_checkudata(L, 1, "button");
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const char *attr = luaL_checklstring(L, 2, &len);
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switch(a_tokenize(attr, len))
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{
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case A_TK_PRESS:
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2009-07-28 10:29:30 +02:00
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luaA_checkfunction(L, 3);
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luaA_object_unref_item(L, 1, button->press);
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button->press = luaA_object_ref_item(L, 1, 3);
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2009-04-26 10:46:09 +02:00
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break;
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case A_TK_RELEASE:
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2009-07-28 10:29:30 +02:00
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luaA_checkfunction(L, 3);
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luaA_object_unref_item(L, 1, button->release);
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button->release = luaA_object_ref_item(L, 1, 3);
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2009-04-26 10:46:09 +02:00
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break;
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case A_TK_BUTTON:
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2009-04-26 12:34:13 +02:00
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button->button = luaL_checknumber(L, 3);
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2009-04-26 10:46:09 +02:00
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break;
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2009-04-27 14:32:39 +02:00
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case A_TK_MODIFIERS:
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2009-06-17 17:05:47 +02:00
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button->mod = luaA_tomodifiers(L, 3);
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break;
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2009-04-26 10:46:09 +02:00
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default:
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break;
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}
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return 0;
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}
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const struct luaL_reg awesome_button_methods[] =
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{
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2009-06-09 12:51:25 +02:00
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LUA_CLASS_METHODS(button)
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2009-04-26 10:46:09 +02:00
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{ "__call", luaA_button_new },
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{ NULL, NULL }
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};
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const struct luaL_reg awesome_button_meta[] =
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{
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2009-07-29 15:22:33 +02:00
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LUA_OBJECT_META
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2009-04-26 10:46:09 +02:00
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{ "__index", luaA_button_index },
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{ "__newindex", luaA_button_newindex },
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2009-07-28 10:29:30 +02:00
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{ "__gc", luaA_object_gc },
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2009-04-26 10:46:09 +02:00
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{ "__tostring", luaA_button_tostring },
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{ NULL, NULL }
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};
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// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80
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