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path: root/src/lua/modules/graphics/je_lua_texture_font.cpp
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#include "lua/modules/luax.h"
#include "lua/modules/types.h"
#include "lua/common/je_lua_common.h"
#include "libjin/jin.h"

using namespace JinEngine::Graphics;
using namespace JinEngine::Graphics::Fonts;

namespace JinEngine
{
    namespace Lua
    {

	    LUA_IMPLEMENT int l_gc(lua_State* L)
	    {
		    Proxy* proxy = (Proxy*)luax_checktype(L, 1, JIN_GRAPHICS_TEXTUREFONT);
		    proxy->release();
		    return 0;
	    }

	    /* typeset(Text | string, lineheight, spacing) */
	    LUA_IMPLEMENT int l_typeset(lua_State* L)
	    {
		    Proxy* p = (Proxy*)luax_checktype(L, 1, JIN_GRAPHICS_TEXTUREFONT);
		    TextureFont* tf = p->getObject<TextureFont>();
		    int lineheight = luax_checkinteger(L, 3);
		    int spacing = luax_optnumber(L, 4, 0);
		    Page* page = nullptr;
		    if (luax_isstring(L, 2))
		    {
			    unsigned length;
			    const char* str = luax_checklstring(L, 2, &length);
			    Text text(Encode::UTF8, str, length);
			    page = tf->typeset(text, lineheight, spacing);
		    }
		    else if (luax_istype(L, 2, JIN_GRAPHICS_TEXT))
		    {
			    Proxy* p2 = (Proxy*)luax_checktype(L, 2, JIN_GRAPHICS_TEXT);
			    Text* text = p2->getObject<Text>();
			    page = tf->typeset(*text, lineheight, spacing);
		    }
		    Proxy* proxy = luax_newinstance(L, JIN_GRAPHICS_PAGE);
		    Shared<Page>* refPage = new Shared<Page>(page, JIN_GRAPHICS_PAGE);
		    {
			    /* retain related ttf */
			    Shared<TextureFont>& refTF = p->getShared<TextureFont>();
			    refTF.retain();
			    refPage->setUserdata(&refTF);
		    }
		    proxy->bind(refPage);
		    return 1;
	    }

	    LUA_IMPLEMENT const luaL_Reg f[] = {
		    { "__gc",    l_gc      },
		    { "typeset", l_typeset },
		    { 0,         0         }
	    };

	    LUA_EXPORT int luaopen_TextureFont(lua_State* L)
	    {
		    luax_newtype(L, JIN_GRAPHICS_TEXTUREFONT, f);

		    return 0;
	    }

    } // namespace Lua
} // namespace JinEngine