/*
 * MathPlanner 3.0 - Mathematical design tool.
 * Copyright(C) 2002  Jarmo Nikkanen
 *
 * This program 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.
 *
 * You should have received a copy of the GNU General Public License with this program.
 *
 */


// ************************************************************************************
// Symbol Object
// ************************************************************************************

#include "AppControl.h"
#include "MathHeaders.h"
#include "AppControl.h"
#include "Header.h"
#include "Datasymbol.h"
#include "Object_string.h"
#include "Function_object.h"
#include "Datastore.h"



void symbol_object::KeyReceived(key_code key)
{
key.insert_mode=MODE_AUTO;
KeyOutput(key);
}


symbol_object::symbol_object(DataStorage *msg)
:m_base_object(msg)
{
  Reset();
  letter=msg->ReadQString("sy:Letter");
}


DataStorage *symbol_object::BuildStorage()
{ 
  DataStorage *msg=m_base_object::BuildStorage();
  msg->AddQString("sy:Letter",letter);
  return(msg);
}


symbol_object::symbol_object(QString s,int ty,ApplicationControl *a,m_function_object *o,class string_object *str)
:m_base_object(a,o,str)
{
Reset();
letter=s;
Type=ty;
Priority=PRIORITY_NONE;
SubObject=SUB_NONE;
MainType=OMT_STRING_OPERATOR;
}   



void symbol_object::SetSymbol(QString s)
{
letter=s;
}


QFont symbol_object::GetFont(int id)
{
return(string->GetFont(FONT_TYPE_NORMAL));
}


QColor symbol_object::GetColor(int id)
{
return(AppControl->GetColor(FONT_TYPE_OPERATOR));
}


void symbol_object::CalculateBounds()
{
   old_bounds=bounds; 

   QFontMetrics met(GetFont());

   bounds.width=met.width(letter);
   bounds.ascent=met.ascent();
   bounds.descent=met.descent();

   if (letter.contains("_PLOT")) {
         bounds.width=(bounds.ascent+bounds.descent)/4;
   }

}


void symbol_object::MoveTo(QPoint p)
{
   bounds.SetPosition(p);
}


void symbol_object::Draw(QPainter *paint)
{
  int radi,cl;

  QColor co=GetColor();
  QFont font=GetFont();

  paint->setPen(co);
  paint->setBrush(co);
  paint->setFont(font);

  radi=bounds.width/2;

  if (radi<2) radi=2;

  cl=AppControl->CenterLine(string);

  QPoint p=bounds.Position()-QPoint(-(bounds.width*2/5),cl);

  if (letter.contains("_PLOT")) paint->drawEllipse(p.x(),p.y(),radi,radi);
  else paint->drawText(bounds.Position(),letter);

  paint->setBrush(QBrush::NoBrush);

  if (HasFocus() && function->HasFocus()) {
     paint->setPen(focus_pen);
     paint->drawRect(bounds.Rect());
  }
  
  if (Error_flag && (!HasFocus() || !function->HasFocus())) {
     paint->setPen(error_pen);
     paint->drawRect(bounds.Rect());
  }
}