text.h

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//            Copyright (C) 2004-2007 by The Allacrost Project
//                         All Rights Reserved
//
// This code is licensed under the GNU GPL version 2. It is free software 
// and you may modify it and/or redistribute it under the terms of this license.
// See http://www.gnu.org/copyleft/gpl.html for details.

#ifndef __TEXT_HEADER__
#define __TEXT_HEADER__

#include "defs.h"
#include "utils.h"

typedef struct _TTF_Font TTF_Font;

namespace hoa_video {

enum TEXT_SHADOW_STYLE {
  VIDEO_TEXT_SHADOW_INVALID = -1,

  VIDEO_TEXT_SHADOW_NONE = 0,
  VIDEO_TEXT_SHADOW_DARK = 1,
  VIDEO_TEXT_SHADOW_LIGHT = 2,
  VIDEO_TEXT_SHADOW_BLACK = 3,
  VIDEO_TEXT_SHADOW_COLOR = 4,
  VIDEO_TEXT_SHADOW_INVCOLOR = 5,

  VIDEO_TEXT_SHADOW_TOTAL = 6
};

class FontGlyph {
public:
  GLuint texture;
  int32 width;
  int32 height;
  int min_x;
  int min_y;
  float max_x;
  float max_y;
  int32 advance;
  int top_y;
}; // class FontGlyph


class FontProperties {
public:
  int32 height;
  int32 line_skip;
  int32 ascent;
  int32 descent;
  int32 shadow_x;
  int32 shadow_y;
  TEXT_SHADOW_STYLE shadow_style;
  TTF_Font* ttf_font;
  std::map<uint16, FontGlyph*>* glyph_cache;
}; // class FontProperties

class RenderedLine {
private:
        RenderedLine(const RenderedLine &other);
        RenderedLine &operator=(const RenderedLine &other);
public:
  enum
  {
    MAIN_TEXTURE   = 0,
    SHADOW_TEXTURE = 1,
    NUM_TEXTURES   = 2,
  };
  int32 height;
  float v;
  int32 width;
  float u;
  GLuint texture[NUM_TEXTURES];
  int32 x_offset;
  int32 y_offset;
  RenderedLine(GLuint *tex, 
         int32 lineWidth,  int32 texWidth,
         int32 lineHeight, int32 texHeight, 
         int32 xOffset,    int32 yOffset);
  ~RenderedLine();
}; // class RenderedLine


class RenderedString {
private:
  int32 _width;
  int32 _line_skip;
  int32 _shadow_xoff;
  int32 _shadow_yoff;
public:
  std::vector<RenderedLine*> lines;
  RenderedString(int32 line_skip, int32 shadowX = 0, int32 shadowY = 0);
  ~RenderedString();
  bool Draw() const;
  bool Add(RenderedLine *line);
  int32 GetLineSkip() const { return _line_skip; };
  int32 GetWidth() const { return _width; };
  int32 GetShadowX() const { return _shadow_xoff; };
  int32 GetShadowY() const { return _shadow_yoff; };
  void SetShadowX(int32 xoff) { _shadow_xoff = xoff; };
  void SetShadowY(int32 yoff) { _shadow_yoff = yoff; };
}; // class RenderedString

}  // namespace hoa_video


#endif

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