/* Dia -- an diagram creation/manipulation program
 * Copyright (C) 1998 Alexander Larsson
 *
 * 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; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */
#ifndef TEXT_H
#define TEXT_H

typedef enum {
  TEXT_EDIT_START,
  TEXT_EDIT_CHANGE,
  TEXT_EDIT_END
} TextEditState;

#include <glib.h>
#include "diatypes.h"
#include "textattr.h"
#include "focus.h"
#include "properties.h"

#define USE_TEXTLINE_FOR_LINES

struct _Text {
  /** The object that owns this text. */
  DiaObject *parent_object;
  /* don't change these values directly, use the text_set* functions */
  
  /* Text data: */
  int numlines;
  TextLine **lines;

  /* Attributes: */
  DiaFont *font;
  real height;
  Point position;
  Color color;
  Alignment alignment;

  /* Cursor pos: */
  int cursor_pos;
  int cursor_row;
  Focus focus;
  
  /* Computed values:  */
  real ascent; /* **average** ascent */
  real descent; /* **average** descent */
  real max_width;
};


/* makes an internal copy of the string */
Text *new_text(const char *string, DiaFont *font, real height,
	       Point *pos, Color *color, Alignment align);
void text_destroy(Text *text);
Text *text_copy(Text *text);
gchar *text_get_line(Text *text, int line);
char *text_get_string_copy(Text *text);
void text_set_string(Text *text, const char *string);
void text_set_height(Text *text, real height);
void text_set_font(Text *text, DiaFont *font);
void text_set_position(Text *text, Point *pos);
void text_set_color(Text *text, Color *col);
void text_set_alignment(Text *text, Alignment align);
real text_distance_from(Text *text, Point *point);
void text_calc_boundingbox(Text *text, Rectangle *box);
void text_draw(Text *text, DiaRenderer *renderer);
void text_set_cursor(Text *text, Point *clicked_point,
		     DiaRenderer *interactive_renderer);
void text_set_cursor_at_end( Text* text );
void text_grab_focus(Text *text, DiaObject *object);
int text_is_empty(Text *text);
int text_delete_all(Text *text, ObjectChange **change);
void text_get_attributes(Text *text, TextAttributes *attr);
void text_set_attributes(Text *text, TextAttributes *attr);

real text_get_line_width(Text *text, int line_no);
int text_get_line_strlen(Text *text, int line_no);
real text_get_max_width(Text *text);
real text_get_ascent(Text *text);
real text_get_descent(Text *text);

void data_add_text(AttributeNode attr, Text *text);
Text *data_text(AttributeNode attr);

gboolean apply_textattr_properties(GPtrArray *props,
                                   Text *text, const gchar *textname,
                                   TextAttributes *attrs);
gboolean apply_textstr_properties(GPtrArray *props,
                                  Text *text, const gchar *textname,
                                  const gchar *str);
#endif /* TEXT_H */