/*
 * Copyright (C) 2003 Red Hat, Inc.
 *
 * This library 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 2.1 of the License, or (at your option) any later version.
 *
 * This library 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 this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

/* The interfaces in this file are subject to change at any time. */

#ifndef vte_vtedraw_h_included
#define vte_vtedraw_h_included

#include <glib.h>
#include <gtk/gtk.h>
#include <cairo.h>
#include "vteunistr.h"

G_BEGIN_DECLS

#define VTE_DRAW_SINGLE_WIDE_CHARACTERS	\
					" !\"#$%&'()*+,-./" \
					"0123456789" \
					":;<=>?@" \
					"ABCDEFGHIJKLMNOPQRSTUVWXYZ" \
					"[\\]^_`" \
					"abcdefghijklmnopqrstuvwxyz" \
					"{|}~" \
					""
#define VTE_DRAW_DOUBLE_WIDE_CHARACTERS 0x4e00, 0x4e8c, 0x4e09, 0x56db, 0x4e94,\
					0xac00, 0xac01, 0xac04, 0xac08, 0xac10
/* For Pango, we have to use CJK Ideographs alone. Otherwise, 'width'
   returned by pango_layout would be screwed up for Chinese and Japanese
   fonts without Hangul */
#define VTE_DRAW_DOUBLE_WIDE_IDEOGRAPHS 0x4e00, 0x4e8c, 0x4e09, 0x56db, 0x4e94
#define VTE_DRAW_OPAQUE 0xff
#define VTE_DRAW_MAX_LENGTH 1024

#define VTE_DRAW_NORMAL 0
#define VTE_DRAW_BOLD   1
#define VTE_DRAW_ITALIC 2

struct _vte_draw;

/* A request to draw a particular character spanning a given number of columns
   at the given location.  Unlike most APIs, (x,y) specifies the top-left
   corner of the cell into which the character will be drawn instead of the
   left end of the baseline. */
struct _vte_draw_text_request {
	vteunistr c;
	gshort x, y, columns;
};

guint _vte_draw_get_style(gboolean bold, gboolean italic);

/* Create and destroy a draw structure. */
struct _vte_draw *_vte_draw_new(void);
void _vte_draw_free(struct _vte_draw *draw);

cairo_t *_vte_draw_get_context (struct _vte_draw *draw);

void _vte_draw_set_cairo(struct _vte_draw *draw,
                         cairo_t *cr);

void _vte_draw_set_background_solid(struct _vte_draw *draw,
                                    const GdkRGBA *color);

void _vte_draw_clear(struct _vte_draw *draw,
		     gint x, gint y, gint width, gint height);

void _vte_draw_set_text_font(struct _vte_draw *draw,
                             GtkWidget *widget,
			     const PangoFontDescription *fontdesc);
void _vte_draw_get_text_metrics(struct _vte_draw *draw,
				gint *width, gint *height, gint *ascent);
int _vte_draw_get_char_width(struct _vte_draw *draw, vteunistr c, int columns,
			     guint style);
gboolean _vte_draw_has_bold (struct _vte_draw *draw, guint style);

void _vte_draw_text(struct _vte_draw *draw,
		    struct _vte_draw_text_request *requests, gsize n_requests,
		    const PangoColor *color, guchar alpha, guint style);
gboolean _vte_draw_char(struct _vte_draw *draw,
			struct _vte_draw_text_request *request,
			const PangoColor *color, guchar alpha, guint style);
gboolean _vte_draw_has_char(struct _vte_draw *draw, vteunistr c, guint style);

void _vte_draw_fill_rectangle(struct _vte_draw *draw,
			      gint x, gint y, gint width, gint height,
			      const PangoColor *color, guchar alpha);
void _vte_draw_draw_rectangle(struct _vte_draw *draw,
			      gint x, gint y, gint width, gint height,
			      const PangoColor *color, guchar alpha);
void _vte_draw_set_source_color_alpha (struct _vte_draw *draw,
                                       const PangoColor *color,
                                       guchar            alpha);

G_END_DECLS

#endif