cursesf.h

ncurses-5.4 需要的就来下把 一定会有用的哦

    OnError (flag ? ::post_form(form) : ::unpost_form (form));
  }

  // Decorations
  inline void frame(const char *title=NULL, const char* btitle=NULL) {
    if (b_framed)
      NCursesPanel::frame(title,btitle);
    else
      OnError(E_SYSTEM_ERROR);
  }

  inline void boldframe(const char *title=NULL, const char* btitle=NULL) {
    if (b_framed)
      NCursesPanel::boldframe(title,btitle);
    else
      OnError(E_SYSTEM_ERROR);
  }

  inline void label(const char *topLabel, const char *bottomLabel) {
    if (b_framed)
      NCursesPanel::label(topLabel,bottomLabel);
    else
      OnError(E_SYSTEM_ERROR);
  }

  // -----
  // Hooks
  // -----

  // Called after the form gets repositioned in its window.
  // This is especially true if the form is posted.
  virtual void On_Form_Init();

  // Called before the form gets repositioned in its window.
  // This is especially true if the form is unposted.
  virtual void On_Form_Termination();

  // Called after the field became the current field
  virtual void On_Field_Init(NCursesFormField& field);

  // Called before this field is left as current field.
  virtual void On_Field_Termination(NCursesFormField& field);

  // Calculate required window size for the form.
  void scale(int& rows, int& cols) const {
    OnError(::scale_form(form,&rows,&cols));
  }

  // Retrieve number of fields in the form.
  int count() const {
    return ::field_count(form);
  }

  // Make the page the current page of the form.
  void set_page(int page) {
    OnError(::set_form_page(form,page));
  }

  // Retrieve current page number
  int page() const {
    return ::form_page(form);
  }

  // Switch on the forms options
  inline void options_on (Form_Options options) {
    OnError (::form_opts_on (form, options));
  }

  // Switch off the forms options
  inline void options_off (Form_Options options) {
    OnError (::form_opts_off (form, options));
  }

  // Retrieve the forms options
  inline Form_Options options () const {
    return ::form_opts (form);
  }

  // Set the forms options
  inline void set_options (Form_Options options) {
    OnError (::set_form_opts (form, options));
  }

  // Are there more data in the current field after the data shown
  inline bool data_ahead() const {
    return ::data_ahead(form);
  }

  // Are there more data in the current field before the data shown
  inline bool data_behind() const {
    return ::data_behind(form);
  }

  // Position the cursor to the current field
  inline void position_cursor () {
    OnError (::pos_form_cursor (form));
  }
  // Set the current field
  inline void set_current(NCursesFormField& F) {
    OnError (::set_current_field(form, F.field));
  }

  // Provide a default key virtualization. Translate the keyboard
  // code c into a form request code.
  // The default implementation provides a hopefully straightforward
  // mapping for the most common keystrokes and form requests.
  virtual int virtualize(int c);

  // Operators
  inline NCursesFormField* operator[](int i) const {
    if ( (i < 0) || (i >= ::field_count (form)) )
      OnError (E_BAD_ARGUMENT);
    return my_fields[i];
  }

  // Perform the menu's operation
  // Return the field where you left the form.
  virtual NCursesFormField* operator()(void);

  // Exception handlers. The default is a Beep.
  virtual void On_Request_Denied(int c) const;
  virtual void On_Invalid_Field(int c) const;
  virtual void On_Unknown_Command(int c) const;

};

//
// -------------------------------------------------------------------------
// This is the typical C++ typesafe way to allow to attach
// user data to a field of a form. Its assumed that the user
// data belongs to some class T. Use T as template argument
// to create a UserField.
// -------------------------------------------------------------------------
template<class T> class NCURSES_IMPEXP NCursesUserField : public NCursesFormField
{
public:
  NCursesUserField (int rows,
		    int cols,
		    int first_row = 0,
		    int first_col = 0,
		    const T* p_UserData = (T*)0,
		    int offscreen_rows = 0,
		    int additional_buffers = 0)
    : NCursesFormField (rows, cols,
			first_row, first_col,
			offscreen_rows, additional_buffers) {
      if (field)
	OnError(::set_field_userptr(field,(void *)p_UserData));
  }

  virtual ~NCursesUserField() {};

  inline const T* UserData (void) const {
    return (const T*)::field_userptr (field);
  }

  inline virtual void setUserData(const T* p_UserData) {
    if (field)
      OnError (::set_field_userptr (field, (void *)p_UserData));
  }
};
//
// -------------------------------------------------------------------------
// The same mechanism is used to attach user data to a form
// -------------------------------------------------------------------------
//
template<class T> class NCURSES_IMPEXP NCursesUserForm : public NCursesForm
{
protected:
  // 'Internal' constructor, builds an object without association to a
  // field array.
  NCursesUserForm( int  lines,
		   int  cols,
		   int  begin_y = 0,
		   int  begin_x = 0,
		   const T* p_UserData = (T*)0)
    : NCursesForm(lines,cols,begin_y,begin_x) {
      if (form)
	set_user ((void *)p_UserData);
  }

public:
  NCursesUserForm (NCursesFormField Fields[],
		   const T* p_UserData = (T*)0,
		   bool with_frame=FALSE,
		   bool autoDelete_Fields=FALSE)
    : NCursesForm (Fields, with_frame, autoDelete_Fields) {
      if (form)
	set_user ((void *)p_UserData);
  };

  NCursesUserForm (NCursesFormField Fields[],
		   int lines,
		   int cols,
		   int begin_y = 0,
		   int begin_x = 0,
		   const T* p_UserData = (T*)0,
		   bool with_frame=FALSE,
		   bool autoDelete_Fields=FALSE)
    : NCursesForm (Fields, lines, cols, begin_y, begin_x,
		   with_frame, autoDelete_Fields) {
      if (form)
	set_user ((void *)p_UserData);
  };

  virtual ~NCursesUserForm() {
  };

  inline T* UserData (void) const {
    return (T*)get_user ();
  };

  inline virtual void setUserData (const T* p_UserData) {
    if (form)
      set_user ((void *)p_UserData);
  }

};
//
// -------------------------------------------------------------------------
// Builtin Fieldtypes
// -------------------------------------------------------------------------
//
class NCURSES_IMPEXP Alpha_Field : public NCursesFieldType {
private:
  int min_field_width;

  void set(NCursesFormField& f) {
    OnError(::set_field_type(f.get_field(),fieldtype,min_field_width));
  }

public:
  Alpha_Field(int width)
    : NCursesFieldType(TYPE_ALPHA),
      min_field_width(width) {
  }
};

class NCURSES_IMPEXP Alphanumeric_Field : public NCursesFieldType {
private:
  int min_field_width;

  void set(NCursesFormField& f) {
    OnError(::set_field_type(f.get_field(),fieldtype,min_field_width));
  }

public:
  Alphanumeric_Field(int width)
    : NCursesFieldType(TYPE_ALNUM),
      min_field_width(width) {
  }
};

class NCURSES_IMPEXP Integer_Field : public NCursesFieldType {
private:
  int precision;
  long lower_limit, upper_limit;

  void set(NCursesFormField& f) {
    OnError(::set_field_type(f.get_field(),fieldtype,
			     precision,lower_limit,upper_limit));
  }

public:
  Integer_Field(int prec, long low=0L, long high=0L)
    : NCursesFieldType(TYPE_INTEGER),
      precision(prec), lower_limit(low), upper_limit(high) {
  }
};

class NCURSES_IMPEXP Numeric_Field : public NCursesFieldType {
private:
  int precision;
  double lower_limit, upper_limit;

  void set(NCursesFormField& f) {
    OnError(::set_field_type(f.get_field(),fieldtype,
			     precision,lower_limit,upper_limit));
  }

public:
  Numeric_Field(int prec, double low=0.0, double high=0.0)
    : NCursesFieldType(TYPE_NUMERIC),
      precision(prec), lower_limit(low), upper_limit(high) {
  }
};

class NCURSES_IMPEXP Regular_Expression_Field : public NCursesFieldType {
private:
  char* regex;

  void set(NCursesFormField& f) {
    OnError(::set_field_type(f.get_field(),fieldtype,regex));
  }

public:
  Regular_Expression_Field(const char *expr)
    : NCursesFieldType(TYPE_REGEXP) {
      regex = new char[1 + ::strlen(expr)];
      (::strcpy)(regex,expr);
  }

  ~Regular_Expression_Field() {
    delete[] regex;
  }
};

class NCURSES_IMPEXP Enumeration_Field : public NCursesFieldType {
private:
  const char** list;
  int case_sensitive;
  int non_unique_matches;

  void set(NCursesFormField& f) {
    OnError(::set_field_type(f.get_field(),fieldtype,
			     list,case_sensitive,non_unique_matches));
  }
public:
  Enumeration_Field(const char* enums[],
		    bool case_sens=FALSE,
		    bool non_unique=FALSE)
    : NCursesFieldType(TYPE_ENUM),
      list(enums),
      case_sensitive(case_sens?-1:0),
      non_unique_matches(non_unique?-1:0) {
  }
};

class NCURSES_IMPEXP IPV4_Address_Field : public NCursesFieldType {
private:
  void set(NCursesFormField& f) {
    OnError(::set_field_type(f.get_field(),fieldtype));
  }

public:
  IPV4_Address_Field() : NCursesFieldType(TYPE_IPV4) {
  }
};
//
// -------------------------------------------------------------------------
// Abstract base class for User-Defined Fieldtypes
// -------------------------------------------------------------------------
//
class NCURSES_IMPEXP UserDefinedFieldType : public NCursesFieldType {
  friend class UDF_Init; // Internal helper to set up statics
private:
  // For all C++ defined fieldtypes we need only one generic lowlevel
  // FIELDTYPE* element.
  static FIELDTYPE* generic_fieldtype;

protected:
  // This are the functions required by the low level libforms functions
  // to construct a fieldtype.
  static bool fcheck(FIELD *, const void*);
  static bool ccheck(int c, const void *);
  static void* makearg(va_list*);

  void set(NCursesFormField& f) {
    OnError(::set_field_type(f.get_field(),fieldtype,&f));
  }

protected:
  // Redefine this function to do a field validation. The argument
  // is a reference to the field you should validate.
  virtual bool field_check(NCursesFormField& f) = 0;

  // Redefine this function to do a character validation. The argument
  // is the character to be validated.
  virtual bool char_check (int c) = 0;

public:
  UserDefinedFieldType() : NCursesFieldType(generic_fieldtype) {
  }
};
//
// -------------------------------------------------------------------------
// Abstract base class for User-Defined Fieldtypes with Choice functions
// -------------------------------------------------------------------------
//
class NCURSES_IMPEXP UserDefinedFieldType_With_Choice : public UserDefinedFieldType {
  friend class UDF_Init; // Internal helper to set up statics
private:
  // For all C++ defined fieldtypes with choice functions we need only one
  // generic lowlevel FIELDTYPE* element.
  static FIELDTYPE* generic_fieldtype_with_choice;

  // This are the functions required by the low level libforms functions
  // to construct a fieldtype with choice functions.
  static bool next_choice(FIELD*, const void *);
  static bool prev_choice(FIELD*, const void *);

protected:
  // Redefine this function to do the retrieval of the next choice value.
  // The argument is a reference to the field tobe examined.
  virtual bool next    (NCursesFormField& f) = 0;

  // Redefine this function to do the retrieval of the previous choice value.
  // The argument is a reference to the field tobe examined.
  virtual bool previous(NCursesFormField& f) = 0;

public:
  UserDefinedFieldType_With_Choice() {
    fieldtype = generic_fieldtype_with_choice;
  }
};

#endif // NCURSES_CURSESF_H_incl