#define ZGL_IMPORT

#include <memory.h>
#include "zglHeader.h"

zglPFont fntMain;

char resource[256];

char* GetResource( char* FileName )
{
#ifndef __MACOSX__
  sprintf_s( resource, "../data/%s", FileName );
  return resource;
#else
  return FileName;
#endif
}

void Init()
{
  // RU: Загружаем данные о шрифте.
  // EN: Load the font.
  fntMain = font_LoadFromFile( GetResource( "font.zfi" ) );
  // RU: Если же текстуры именуются без использования маски вида "$(имя_шрифта)FontName-page$(номер).$(расширение)", то загрузку можно произвести следующим образом(для png):
  // EN: If textures were named without special mask - "$(font_name)-page$(number).$(extension)", then use this method to load them(for png):
  //for ( int i = 0; i < fntMain.Count.Pages; i++ )
  //{
  //  char texture[32];
  //  sprintf_s( texture, "font-page%i.png", i );
  //  fntMain->Pages[ i ] = tex_LoadFromFile( GetResource( texture ), TEX_NO_COLORKEY, TEX_DEFAULT_2D );
  //}
}

void Draw()
{
  zglTRect r;
  char str[256];

  batch2d_Begin();

  // RU: ZenGL работает исключительно с кодировкой UTF-8, поэтому весь текст должен быть в UTF-8.
  // EN: ZenGL works only with UTF-8 encoding, so all text should be encoded with UTF-8.

  text_Draw( fntMain, 400, 25, "String with center alignment", TEXT_HALIGN_CENTER );

  text_DrawEx( fntMain, 400, 65, 2, 0, "Scaling", 255, 0xFFFFFF, TEXT_HALIGN_CENTER );

  fx2d_SetVCA( 0xFF0000, 0x00FF00, 0x0000FF, 0xFFFFFF, 255, 255, 255, 255 );
  text_Draw( fntMain, 400, 125, "Gradient color for every symbol", TEXT_FX_VCA | TEXT_HALIGN_CENTER );

  r.X = 0;
  r.Y = 300 - 128;
  r.W = 192;
  r.H = 256;
  text_DrawInRect( fntMain, r, "Simple text rendering in rectangle", 0 );
  pr2d_Rect( r.X, r.Y, r.W, r.H, 0xFF0000, 255, 0 );

  r.X = 800 - 192;
  r.Y = 300 - 128;
  r.W = 192;
  r.H = 256;
  text_DrawInRect( fntMain, r, "Text rendering using horizontal right alignment and vertical bottom alignment", TEXT_HALIGN_RIGHT | TEXT_VALIGN_BOTTOM );
  pr2d_Rect( r.X, r.Y, r.W, r.H, 0xFF0000, 255, 0 );

  r.X = 400 - 192;
  r.Y = 300 - 128;
  r.W = 384;
  r.H = 256;
  text_DrawInRect( fntMain, r, "This text uses justify alignment and centered vertically. Text which doesn't fit inside the rectangle will be cropped.", TEXT_HALIGN_JUSTIFY | TEXT_VALIGN_CENTER );
  pr2d_Rect( r.X, r.Y, r.W, r.H, 0xFF0000, 255, 0 );

  r.X = 400 - 320;
  r.Y = 300 + 160;
  r.W = 640;
  r.H = 128;
  text_DrawInRect( fntMain, r, "For starting new line LF symbol can be used\ncode of which is equal to 10 and named in Unicode as \"Line Feed\"", TEXT_HALIGN_CENTER | TEXT_VALIGN_CENTER );
  pr2d_Rect( r.X, r.Y, r.W, r.H, 0xFF0000, 255, 0 );

  // RU: Выводим количество FPS в правом углу, используя text_GetWidth.
  // EN: Render frames per second in the top right corner using text_GetWidth.
  sprintf_s( str, "FPS: %i", (int)zgl_Get( RENDER_FPS ) );
  text_Draw( fntMain, 800 - text_GetWidth( fntMain, str, 0 ), 0, str, 0 );
  batch2d_End();
}

void Timer()
{
  if ( key_Press( K_ESCAPE ) ) zgl_Exit();

  key_ClearState();
}

int main()
{
  if ( !zglLoad( libZenGL ) ) return 0;

  timer_Add( (void*)&Timer, 16, FALSE, NULL );

  zgl_Reg( SYS_LOAD, (void*)&Init );
  zgl_Reg( SYS_DRAW, (void*)&Draw );

  wnd_SetCaption( "06 - Text" );

  wnd_ShowCursor( TRUE );

  scr_SetOptions( 800, 600, REFRESH_MAXIMUM, FALSE, FALSE );

  zgl_Init( 0, 0 );

  zglFree();
  return 0;
}