mirror of
https://github.com/koreader/koreader
synced 2024-11-16 06:12:56 +00:00
8869c52c31
luaL_reg is now renamed to luaL_Reg. Lua 5.2 does not know about the old name anymore, Lua 5.1.x had backward compatibility.
118 lines
3.2 KiB
C
118 lines
3.2 KiB
C
/*
|
|
KindlePDFViewer: a DC abstraction
|
|
Copyright (C) 2012 Hans-Werner Hilse <hilse@web.de>
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "drawcontext.h"
|
|
|
|
static int newDrawContext(lua_State *L) {
|
|
int rotate = luaL_optint(L, 1, 0);
|
|
double zoom = luaL_optnumber(L, 2, (double) 1.0);
|
|
int offset_x = luaL_optint(L, 3, 0);
|
|
int offset_y = luaL_optint(L, 4, 0);
|
|
double gamma = luaL_optnumber(L, 5, (double) -1.0);
|
|
|
|
DrawContext *dc = (DrawContext*) lua_newuserdata(L, sizeof(DrawContext));
|
|
dc->rotate = rotate;
|
|
dc->zoom = zoom;
|
|
dc->offset_x = offset_x;
|
|
dc->offset_y = offset_y;
|
|
dc->gamma = gamma;
|
|
|
|
luaL_getmetatable(L, "drawcontext");
|
|
lua_setmetatable(L, -2);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int dcSetOffset(lua_State *L) {
|
|
DrawContext *dc = (DrawContext*) luaL_checkudata(L, 1, "drawcontext");
|
|
dc->offset_x = luaL_checkint(L, 2);
|
|
dc->offset_y = luaL_checkint(L, 3);
|
|
return 0;
|
|
}
|
|
|
|
static int dcGetOffset(lua_State *L) {
|
|
DrawContext *dc = (DrawContext*) luaL_checkudata(L, 1, "drawcontext");
|
|
lua_pushinteger(L, dc->offset_x);
|
|
lua_pushinteger(L, dc->offset_y);
|
|
return 2;
|
|
}
|
|
|
|
static int dcSetRotate(lua_State *L) {
|
|
DrawContext *dc = (DrawContext*) luaL_checkudata(L, 1, "drawcontext");
|
|
dc->rotate = luaL_checkint(L, 2);
|
|
return 0;
|
|
}
|
|
|
|
static int dcSetZoom(lua_State *L) {
|
|
DrawContext *dc = (DrawContext*) luaL_checkudata(L, 1, "drawcontext");
|
|
dc->zoom = luaL_checknumber(L, 2);
|
|
return 0;
|
|
}
|
|
|
|
static int dcGetRotate(lua_State *L) {
|
|
DrawContext *dc = (DrawContext*) luaL_checkudata(L, 1, "drawcontext");
|
|
lua_pushinteger(L, dc->rotate);
|
|
return 1;
|
|
}
|
|
|
|
static int dcGetZoom(lua_State *L) {
|
|
DrawContext *dc = (DrawContext*) luaL_checkudata(L, 1, "drawcontext");
|
|
lua_pushnumber(L, dc->zoom);
|
|
return 1;
|
|
}
|
|
|
|
static int dcSetGamma(lua_State *L) {
|
|
DrawContext *dc = (DrawContext*) luaL_checkudata(L, 1, "drawcontext");
|
|
dc->gamma = luaL_checknumber(L, 2);
|
|
return 0;
|
|
}
|
|
|
|
static int dcGetGamma(lua_State *L) {
|
|
DrawContext *dc = (DrawContext*) luaL_checkudata(L, 1, "drawcontext");
|
|
lua_pushnumber(L, dc->gamma);
|
|
return 1;
|
|
}
|
|
|
|
static const struct luaL_Reg drawcontext_meth[] = {
|
|
{"setRotate", dcSetRotate},
|
|
{"getRotate", dcGetRotate},
|
|
{"setZoom", dcSetZoom},
|
|
{"getZoom", dcGetZoom},
|
|
{"setOffset", dcSetOffset},
|
|
{"getOffset", dcGetOffset},
|
|
{"setGamma", dcSetGamma},
|
|
{"getGamma", dcGetGamma},
|
|
{NULL, NULL}
|
|
};
|
|
|
|
static const struct luaL_Reg drawcontext_func[] = {
|
|
{"new", newDrawContext},
|
|
{NULL, NULL}
|
|
};
|
|
|
|
int luaopen_drawcontext(lua_State *L) {
|
|
luaL_newmetatable(L, "drawcontext");
|
|
lua_pushstring(L, "__index");
|
|
lua_pushvalue(L, -2);
|
|
lua_settable(L, -3);
|
|
luaL_register(L, NULL, drawcontext_meth);
|
|
lua_pop(L, 1);
|
|
luaL_register(L, "DrawContext", drawcontext_func);
|
|
return 1;
|
|
}
|