base_text

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// Copyright (C) 2010, Guy Barrand. All rights reserved.
// See the file tools.license for terms.
 
#ifndef tools_sg_base_text
#define tools_sg_base_text
 
#include "node"
 
#include "sf_enum"
#include "mf"
#include "enums" //hjust,vjust
//#include "../lina/box3f"
 
namespace tools {
namespace sg {
 
class base_text : public node {
  typedef node parent;
public:
  virtual float ascent(float) const = 0;
  virtual float descent(float) const = 0;
  virtual float y_advance(float) const = 0;
  virtual void get_bounds(float,
                          float&,float&,float&,
                          float&,float&,float&) const = 0;
 
  virtual bool truncate(const std::string&,float,float,std::string&) const = 0;
public:
  mf_string strings;
  sf<float> height;
  sf_enum<sg::hjust> hjust;
  sf_enum<sg::vjust> vjust;
public:
  virtual const desc_fields& node_desc_fields() const {
    TOOLS_FIELD_DESC_NODE_CLASS(tools::sg::base_text)
    static const desc_fields s_v(parent::node_desc_fields(),4, //WARNING : take care of count.
      TOOLS_ARG_FIELD_DESC(strings),
      TOOLS_ARG_FIELD_DESC(height),
      TOOLS_ARG_FIELD_DESC(hjust),
      TOOLS_ARG_FIELD_DESC(vjust)
    );
    return s_v;
  }
private:
  void add_fields(){
    add_field(&strings);
    add_field(&height);
    add_field(&hjust);
    add_field(&vjust);
  }
public:
  base_text()
  :parent()
  ,height(1.0f)
  ,hjust(left)
  ,vjust(bottom)
  {
    add_fields();
  }
  virtual ~base_text(){}
protected:
  base_text(const base_text& a_from)
  :parent(a_from)
  ,strings(a_from.strings)
  ,height(a_from.height)
  ,hjust(a_from.hjust)
  ,vjust(a_from.vjust)
  {
    add_fields();
  }
  base_text& operator=(const base_text& a_from){
    parent::operator=(a_from);
    height = a_from.height;
    strings = a_from.strings;
    hjust = a_from.hjust;
    vjust = a_from.vjust;
    return *this;
  }
public:
 
//  void get_bounds(float a_height,box3f& a_box) {
//    //for backward compatibility.
//    float mn_x,mn_y,mn_z;
//    float mx_x,mx_y,mx_z;
//    get_bounds(a_height,mn_x,mn_y,mn_z,mx_x,mx_y,mx_z);
//    a_box.set_bounds(mn_x,mn_y,mn_z,mx_x,mx_y,mx_z);
//  }
 
};
 
}}
 
#endif