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/*
* Copyright (C) 2003 Red Hat, Inc.
*
* This is free software; you can redistribute it and/or modify it under
* the terms of the GNU Library 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 Library General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, 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 "vtebg.h"
#include "vte.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
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;
};
struct _vte_draw_impl {
const char *name;
gboolean (*check)(struct _vte_draw *draw, GtkWidget *widget);
void (*create)(struct _vte_draw *draw, GtkWidget *widget);
void (*destroy)(struct _vte_draw *draw);
GdkVisual* (*get_visual)(struct _vte_draw *draw);
GdkColormap* (*get_colormap)(struct _vte_draw *draw);
void (*start)(struct _vte_draw *draw);
void (*end)(struct _vte_draw *draw);
void (*set_background_solid)(struct _vte_draw *,
GdkColor *color,
guint16 opacity);
void (*set_background_image)(struct _vte_draw *,
enum VteBgSourceType type,
GdkPixbuf *pixbuf,
const char *file,
const GdkColor *color,
double saturation);
void (*set_background_scroll)(struct _vte_draw *,
gint, gint);
void (*clip)(struct _vte_draw *, GdkRegion *);
gboolean always_requires_clear;
void (*clear)(struct _vte_draw *, gint, gint, gint, gint);
void (*set_text_font)(struct _vte_draw *,
const PangoFontDescription *,
VteTerminalAntiAlias);
void (*get_text_metrics)(struct _vte_draw *, gint *, gint *, gint *);
int (*get_char_width)(struct _vte_draw *, vteunistr c, int columns,
gboolean);
gboolean (*has_bold)(struct _vte_draw *);
void (*draw_text)(struct _vte_draw *,
struct _vte_draw_text_request *, gsize,
GdkColor *, guchar, gboolean);
gboolean (*has_char)(struct _vte_draw *, vteunistr, gboolean);
void (*draw_rectangle)(struct _vte_draw *,
gint, gint, gint, gint,
GdkColor *, guchar);
void (*fill_rectangle)(struct _vte_draw *,
gint, gint, gint, gint,
GdkColor *, guchar);
};
struct _vte_draw {
GtkWidget *widget;
gboolean started;
gboolean requires_clear;
const struct _vte_draw_impl *impl;
/* for use by impl */
gpointer impl_data;
};
/* Create and destroy a draw structure. */
struct _vte_draw *_vte_draw_new(GtkWidget *widget);
void _vte_draw_free(struct _vte_draw *draw);
/* Get the visual and colormap the draw structure desires. Certain draw
implementations may require that this visual/colormap pair be used when
creating a window, and may fail otherwise. */
GdkVisual *_vte_draw_get_visual(struct _vte_draw *draw);
GdkColormap *_vte_draw_get_colormap(struct _vte_draw *draw,
gboolean maybe_use_default);
/* Begin and end a drawing operation. If anything is buffered locally, it is
flushed to the window system when _end() is called. */
void _vte_draw_start(struct _vte_draw *draw);
void _vte_draw_end(struct _vte_draw *draw);
void _vte_draw_set_background_solid(struct _vte_draw *draw,
GdkColor *color,
guint16 opacity);
void _vte_draw_set_background_image(struct _vte_draw *draw,
enum VteBgSourceType type,
GdkPixbuf *pixbuf,
const char *file,
const GdkColor *color,
double saturation);
void _vte_draw_set_background_scroll(struct _vte_draw *draw,
gint x, gint y);
gboolean _vte_draw_clip(struct _vte_draw *draw, GdkRegion *region);
gboolean _vte_draw_requires_clear (struct _vte_draw *draw);
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,
const PangoFontDescription *fontdesc,
VteTerminalAntiAlias anti_alias);
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,
gboolean bold);
void _vte_draw_text(struct _vte_draw *draw,
struct _vte_draw_text_request *requests, gsize n_requests,
GdkColor *color, guchar alpha, gboolean);
gboolean _vte_draw_char(struct _vte_draw *draw,
struct _vte_draw_text_request *request,
GdkColor *color, guchar alpha, gboolean bold);
gboolean _vte_draw_has_char(struct _vte_draw *draw, vteunistr c, gboolean bold);
void _vte_draw_fill_rectangle(struct _vte_draw *draw,
gint x, gint y, gint width, gint height,
GdkColor *color, guchar alpha);
void _vte_draw_draw_rectangle(struct _vte_draw *draw,
gint x, gint y, gint width, gint height,
GdkColor *color, guchar alpha);
G_END_DECLS
#endif
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