abcfont.h

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/* xoreos - A reimplementation of BioWare's Aurora engine
 *
 * xoreos is the legal property of its developers, whose names
 * can be found in the AUTHORS file distributed with this source
 * distribution.
 *
 * xoreos 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.
 *
 * xoreos 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 xoreos. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef GRAPHICS_AURORA_ABCFONT_H
#define GRAPHICS_AURORA_ABCFONT_H

#include <map>

#include "src/common/types.h"

#include "src/graphics/font.h"

#include "src/graphics/aurora/texturehandle.h"

#include "src/graphics/mesh/meshfont.h"

#include "src/graphics/shader/shaderrenderable.h"

namespace Common {
    class UString;
    class SeekableReadStream;
}

namespace Graphics {

namespace Aurora {

class ABCFont : public Graphics::Font {
public:
    ABCFont(const Common::UString &name);
    ~ABCFont();

    float getWidth (uint32 c) const;
    float getHeight()         const;

    void draw(uint32 c) const;

    virtual void renderBind(const glm::mat4 &transform) const;

    virtual void render(uint32 c, float &x, float &y, float *rgba) const;
    virtual void renderUnbind() const;

private:
    struct Char {
        uint32 dataX;
        uint32 dataY;
        uint8  width;
        int8   spaceL;
        int8   spaceR;

        float tX[4], tY[4];
        float vX[4], vY[4];
    };

    TextureHandle _texture;
    Mesh::MeshFont *_mesh;
    Shader::ShaderMaterial *_material;
    Shader::ShaderRenderable *_renderable;

    uint8 _base;

    Char _invalid;
    Char _ascii[128];
    std::map<uint32, Char> _extended;

    void load(const Common::UString &name);

    void readCharDesc(Char &c, Common::SeekableReadStream &abc);
    void calcCharVertices(Char &c);

    const Char &findChar(uint32 c) const;
};

} // End of namespace Aurora

} // End of namespace Graphics

#endif // GRAPHICS_AURORA_ABCFONT_H