// Created on: 2008-01-20
// Created by: Alexander A. BORODIN
// Copyright (c) 2008-2012 OPEN CASCADE SAS
//
// The content of this file is subject to the Open CASCADE Technology Public
// License Version 6.5 (the "License"). You may not use the content of this file
// except in compliance with the License. Please obtain a copy of the License
// at http://www.opencascade.org and read it completely before using this file.
//
// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
//
// The Original Code and all software distributed under the License is
// distributed on an "AS IS" basis, without warranty of any kind, and the
// Initial Developer hereby disclaims all such warranties, including without
// limitation, any warranties of merchantability, fitness for a particular
// purpose or non-infringement. Please see the License for the specific terms
// and conditions governing the rights and limitations under the License.


// Updated:

#include <Font_SystemFont.ixx>
#include <OSD_Path.hxx>
#include <TCollection_HAsciiString.hxx>


Font_SystemFont::Font_SystemFont():
MyFontName(),
MyFontAspect(Font_FA_Undefined),
MyFaceSize(-1),
MyVerification(Standard_False)
{
}

Font_SystemFont::Font_SystemFont( const Handle(TCollection_HAsciiString)& FontName,
                                const Font_FontAspect FontAspect,
                                const Handle(TCollection_HAsciiString)& FilePath ):
MyFontName(FontName),
MyFontAspect(FontAspect),
MyFilePath(FilePath),
MyFaceSize(-1),
MyVerification(Standard_True)
{

}

Font_SystemFont::Font_SystemFont (const Handle(TCollection_HAsciiString)& theXLFD,
                                  const Handle(TCollection_HAsciiString)& theFilePath) :
MyFilePath(theFilePath),
MyFontAspect(Font_FA_Regular)
{
  MyVerification = Standard_True;
  if (theXLFD.IsNull())
  {
    MyVerification = Standard_False; // empty font description handler
  }
  if (theXLFD->IsEmpty())
  {
    MyVerification = Standard_False; // empty font description
  }

  if (MyVerification)
  {
    MyFontName = theXLFD->Token ("-", 2);
    TCollection_AsciiString aXLFD (theXLFD->ToCString());

    // Getting font size for fixed size fonts
    if (aXLFD.Search ("-0-0-0-0-") >= 0)
      MyFaceSize = -1; // Scalable font
    else
      //TODO catch exeption
      MyFaceSize = aXLFD.Token ("-", 7).IntegerValue();

    // Detect font aspect
    if (aXLFD.Token ("-", 3).IsEqual ("bold") && 
       (aXLFD.Token ("-", 4).IsEqual ("i") || aXLFD.Token ("-", 4).IsEqual ("o")))
    {
      MyFontAspect = Font_FA_BoldItalic;
    }
    else if (aXLFD.Token ("-", 3).IsEqual ("bold"))
    {
      MyFontAspect = Font_FA_Bold;
    }
    else if (aXLFD.Token ("-", 4).IsEqual ("i") || aXLFD.Token ("-", 4).IsEqual ("o"))
    {
      MyFontAspect = Font_FA_Italic;
    }
  }
}

Standard_Boolean Font_SystemFont::IsValid() const{
  if ( !MyVerification)
    return Standard_False;

  if ( MyFontAspect == Font_FA_Undefined )
    return Standard_False;

  if ( MyFontName->IsEmpty() || !MyFontName->IsAscii() )
    return Standard_False;

  OSD_Path path;  
  return path.IsValid( MyFilePath->String() );
}

Handle(TCollection_HAsciiString) Font_SystemFont::FontPath() const{
  return MyFilePath;
}

Handle(TCollection_HAsciiString) Font_SystemFont::FontName() const{
  return MyFontName;
}

Font_FontAspect Font_SystemFont::FontAspect() const{
  return MyFontAspect;
}

Standard_Integer Font_SystemFont::FontHeight() const {
  return MyFaceSize;
}

Standard_Boolean Font_SystemFont::IsEqual(const Handle(Font_SystemFont)& theOtherFont) const
{
  if (!MyFontName->IsSameString (theOtherFont->FontName(), Standard_False))
  {
    return Standard_False;
  }

  if (MyFontAspect != theOtherFont->FontAspect())
  {
    return Standard_False;
  }

  if (MyFaceSize != theOtherFont->FontHeight())
  {
    return Standard_False;
  }

  return Standard_True;
}