netsurf/frontends/atari/plot/fontplot.h
2016-05-15 13:44:34 +01:00

87 lines
2.6 KiB
C

/*
* Copyright 2010 Ole Loots <ole@monochrom.net>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf 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; version 2 of the License.
*
* NetSurf 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef FONT_PLOT_H
#define FONT_PLOT_H
typedef struct s_font_plotter * FONT_PLOTTER;
struct s_font_driver_table_entry
{
const char * name;
int (*ctor)( FONT_PLOTTER self );
int flags;
};
/* declaration of font plotter member functions: (_fpmf_ prefix) */
typedef int (*_fpmf_str_width)( FONT_PLOTTER self, const plot_font_style_t *fstyle,
const char * str, size_t length, int * width);
typedef int (*_fpmf_str_split)( FONT_PLOTTER self, const plot_font_style_t *fstyle,
const char *string, size_t length,
int x, size_t *char_offset, int *actual_x);
typedef int (*_fpmf_pixel_pos)( FONT_PLOTTER self, const plot_font_style_t *fstyle,
const char *string, size_t length,
int x, size_t *char_offset, int *actual_x);
typedef int (*_fpmf_text)( FONT_PLOTTER self, int x, int y, const char *text,
size_t length, const plot_font_style_t *fstyle);
typedef void (*_fpmf_draw_glyph)(FONT_PLOTTER self, GRECT * clip, GRECT * loc,
uint8_t * pixdata, int pitch, uint32_t colour);
typedef int (*_fpmf_dtor)( FONT_PLOTTER self );
/* prototype of the font plotter "object" */
struct s_font_plotter
{
char * name;
int flags;
int vdi_handle;
void * priv_data;
_fpmf_str_width str_width;
_fpmf_str_split str_split;
_fpmf_pixel_pos pixel_pos;
_fpmf_text text;
_fpmf_draw_glyph draw_glyph;
_fpmf_dtor dtor;
};
FONT_PLOTTER plot_get_text_plotter(void);
/* Set the font plotting engine.
*/
void plot_set_text_plotter(FONT_PLOTTER font_plotter);
void dump_font_drivers(void);
FONT_PLOTTER new_font_plotter( int vdihandle, char * name, unsigned long flags,
int * error);
int delete_font_plotter( FONT_PLOTTER p );
#ifdef WITH_VDI_FONT_DRIVER
#include "atari/plot/font_vdi.h"
#endif
#ifdef WITH_INTERNAL_FONT_DRIVER
#include "atari/plot/font_internal.h"
#endif
#ifdef WITH_FREETYPE_FONT_DRIVER
#include "atari/plot/font_freetype.h"
#endif
#endif