love / src / modules / font / freetype / wrap_Font.cpp

/**
 * Copyright (c) 2006-2013 LOVE Development Team
 *
 * This software is provided 'as-is', without any express or implied
 * warranty.  In no event will the authors be held liable for any damages
 * arising from the use of this software.
 *
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 *
 * 1. The origin of this software must not be misrepresented; you must not
 *    claim that you wrote the original software. If you use this software
 *    in a product, an acknowledgment in the product documentation would be
 *    appreciated but is not required.
 * 2. Altered source versions must be plainly marked as such, and must not be
 *    misrepresented as being the original software.
 * 3. This notice may not be removed or altered from any source distribution.
 **/

#include "wrap_Font.h"

#include "Font.h"

#include "font/wrap_GlyphData.h"
#include "font/wrap_Rasterizer.h"

#include "TrueTypeRasterizer.h"

namespace love
{
namespace font
{
namespace freetype
{

static Font *instance = 0;

int w_newRasterizer(lua_State *L)
{
	Rasterizer *t = NULL;
	try
	{
		if (luax_istype(L, 1, IMAGE_IMAGE_DATA_T))
		{
			love::image::ImageData *d = luax_checktype<love::image::ImageData>(L, 1, "ImageData", IMAGE_IMAGE_DATA_T);
			const char *g = luaL_checkstring(L, 2);
			std::string glyphs(g);
			t = instance->newRasterizer(d, glyphs);
		}
		else if (luax_istype(L, 1, DATA_T))
		{
			Data *d = luax_checkdata(L, 1);
			int size = luaL_checkint(L, 2);
			t = instance->newRasterizer(d, size);
		}
	}
	catch (love::Exception &e)
	{
		return luaL_error(L, "%s", e.what());
	}

	luax_newtype(L, "Rasterizer", FONT_RASTERIZER_T, t);
	return 1;
}

int w_newGlyphData(lua_State *L)
{
	Rasterizer *r = luax_checkrasterizer(L, 1);
	unsigned int g = (unsigned int)luaL_checknumber(L, 2);

	GlyphData *t = instance->newGlyphData(r, g);
	luax_newtype(L, "GlyphData", FONT_GLYPH_DATA_T, t);
	return 1;
}

// List of functions to wrap.
static const luaL_Reg functions[] =
{
	{ "newRasterizer",  w_newRasterizer },
	{ "newGlyphData",  w_newGlyphData },
	{ 0, 0 }
};

static const lua_CFunction types[] =
{
	luaopen_glyphdata,
	luaopen_rasterizer,
	0
};

extern "C" int luaopen_love_font(lua_State *L)
{
	if (instance == 0)
	{
		try
		{
			instance = new Font();
		}
		catch(Exception &e)
		{
			return luaL_error(L, e.what());
		}
	}
	else
		instance->retain();

	WrappedModule w;
	w.module = instance;
	w.name = "font";
	w.flags = MODULE_T;
	w.functions = functions;
	w.types = types;

	return luax_register_module(L, w);
}

} // freetype
} // font
} // love
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