/*
 * Text cell renderer.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>  
 *
 *
 * Authors:
 *		Miguel de Icaza <miguel@ximian.com>
 *		Chris Lahey <clahey@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 * A lot of code taken from:
 *
 * Text item type for GnomeCanvas widget
 *
 * GnomeCanvas is basically a port of the Tk toolkit's most excellent
 * canvas widget.  Tk is copyrighted by the Regents of the University
 * of California, Sun Microsystems, and other parties.
 *
 * Copyright (C) 1998 The Free Software Foundation
 *
 * Author: Federico Mena <federico@nuclecu.unam.mx>
 *
 */

#ifndef _E_CELL_TEXT_H_
#define _E_CELL_TEXT_H_

#include <gtk/gtk.h>
#include <libgnomecanvas/gnome-canvas.h>
#include <table/e-cell.h>

G_BEGIN_DECLS

#define E_CELL_TEXT_TYPE        (e_cell_text_get_type ())
#define E_CELL_TEXT(o)          (G_TYPE_CHECK_INSTANCE_CAST ((o), E_CELL_TEXT_TYPE, ECellText))
#define E_CELL_TEXT_CLASS(k)    (G_TYPE_CHECK_CLASS_CAST((k), E_CELL_TEXT_TYPE, ECellTextClass))
#define E_IS_CELL_TEXT(o)       (G_TYPE_CHECK_INSTANCE_TYPE ((o), E_CELL_TEXT_TYPE))
#define E_IS_CELL_TEXT_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), E_CELL_TEXT_TYPE))

typedef struct {
	ECell parent;

	GtkJustification  justify;
	char             *font_name;

	double x, y;			/* Position at anchor */

	gulong pixel;			/* Fill color */

	/* Clip handling */
	char *ellipsis;                 /* The ellipsis characters.  NULL = "...". */

	guint use_ellipsis : 1;         /* Whether to use the ellipsis. */
	guint editable : 1;		/* Whether the text can be edited. */

	int strikeout_column;
	int underline_column;
	int bold_column;

	/* This column in the ETable should return a string specifying a color,
	   either a color name like "red" or a color spec like "rgb:F/0/0".
	   See the XParseColor man page for the formats available. */
	int color_column;
	int bg_color_column;

	/* This stores the colors we have allocated. */
	GHashTable *colors;
} ECellText;

typedef struct {
	ECellClass parent_class;

	char *(*get_text)  (ECellText *cell, ETableModel *model, int col, int row);
	void  (*free_text) (ECellText *cell, char *text);
	void  (*set_value) (ECellText *cell, ETableModel *model, int col, int row, const char *text);
	/* signal handlers */
	void (*text_inserted) (ECellText *cell, ECellView *cell_view, int pos, int len, int row, int model_col);
	void (*text_deleted)  (ECellText *cell, ECellView *cell_view, int pos, int len, int row, int model_col);
} ECellTextClass;

GType      e_cell_text_get_type (void);
ECell     *e_cell_text_new      (const char *fontname, GtkJustification justify);
ECell     *e_cell_text_construct(ECellText *cell, const char *fontname, GtkJustification justify);

/* Gets the value from the model and converts it into a string. In ECellText
   itself, the value is assumed to be a char* and so needs no conversion.
   In subclasses the ETableModel value may be a more complicated datatype. */
char	  *e_cell_text_get_text (ECellText *cell, ETableModel *model, int col, int row);

/* Frees the value returned by e_cell_text_get_text(). */
void	   e_cell_text_free_text (ECellText *cell, char *text);

/* Sets the ETableModel value, based on the given string. */
void	   e_cell_text_set_value (ECellText *cell, ETableModel *model, int col, int row, const char *text);

/* Sets the selection of given text cell */
gboolean e_cell_text_set_selection (ECellView *cell_view, gint col, gint row, gint start, gint end);

/* Gets the selection of given text cell */
gboolean e_cell_text_get_selection (ECellView *cell_view, gint col, gint row, gint *start, gint *end);

/* Copys the selected text to the clipboard */
void e_cell_text_copy_clipboard (ECellView *cell_view, gint col, gint row);

/* Pastes the text from the clipboard */
void e_cell_text_paste_clipboard (ECellView *cell_view, gint col, gint row);

/* Deletes selected text */
void e_cell_text_delete_selection (ECellView *cell_view, gint col, gint row);

/* get text directly from view, both col and row are model format */
char *e_cell_text_get_text_by_view (ECellView *cell_view, gint col, gint row);

G_END_DECLS

#endif /* _E_CELL_TEXT_H_ */