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https://github.com/netsurf-browser/netsurf
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Added plot_get/set_text_plotter and comments
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Ole Loots
parent
569b748172
commit
2c0bcc39bd
@ -1,106 +1,121 @@
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/*
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* Copyright 2010 Ole Loots <ole@monochrom.net>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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/*
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* Copyright 2010 Ole Loots <ole@monochrom.net>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "atari/plot/fontplot.h"
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const struct s_font_driver_table_entry font_driver_table[] =
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const struct s_font_driver_table_entry font_driver_table[] =
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{
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#ifdef WITH_VDI_FONT_DRIVER
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{"vdi", ctor_font_plotter_vdi, 0},
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#ifdef WITH_VDI_FONT_DRIVER
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{"vdi", ctor_font_plotter_vdi, 0},
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#endif
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#ifdef WITH_FREETYPE_FONT_DRIVER
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{"freetype", ctor_font_plotter_freetype, 0},
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#endif
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#ifdef WITH_INTERNAL_FONT_DRIVER
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#ifdef WITH_INTERNAL_FONT_DRIVER
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{"internal", ctor_font_plotter_internal, 0},
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#endif
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{(char*)NULL, NULL, 0}
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#endif
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{(char*)NULL, NULL, 0}
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};
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void dump_font_drivers(void)
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{
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int i = 0;
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while( font_driver_table[i].name != NULL ) {
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printf("%s -> flags: %d\n",
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font_driver_table[i].name,
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font_driver_table[i].flags
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);
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i++;
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}
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}
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/*
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Create an new text plotter object
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*/
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FONT_PLOTTER new_font_plotter( int vdihandle, char * name, unsigned long flags,
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int * error)
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{
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int i=0;
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int res = 0-ERR_PLOTTER_NOT_AVAILABLE;
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FONT_PLOTTER fplotter = (FONT_PLOTTER)malloc( sizeof(struct s_font_plotter) );
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if( fplotter == NULL ) {
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*error = 0-ERR_NO_MEM;
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return( NULL );
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void dump_font_drivers(void)
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{
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int i = 0;
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while( font_driver_table[i].name != NULL ) {
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printf("%s -> flags: %d\n",
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font_driver_table[i].name,
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font_driver_table[i].flags
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);
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i++;
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}
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memset( fplotter, 0, sizeof(FONT_PLOTTER));
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fplotter->vdi_handle = vdihandle;
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}
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/*
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* Create an new text plotter object
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* Available: "vdi", "freetype"
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* @param vdihandle the vdi handle to act upon,
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* @param name selector ID (string) of the font plotter.
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* @flags flags configration flags of the plotter,
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* available flags:
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* FONTPLOT_FLAG_MONOGLYPH - Enable 1 bit font plotting
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* @param error set to != 0 when errors occur
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*/
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FONT_PLOTTER new_font_plotter( int vdihandle, char * name, unsigned long flags,
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int * error)
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{
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int i=0;
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int res = 0-ERR_PLOTTER_NOT_AVAILABLE;
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FONT_PLOTTER fplotter;
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/* allocate the font plotter instance: */
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fplotter = (FONT_PLOTTER)malloc( sizeof(struct s_font_plotter) );
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if( fplotter == NULL ) {
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*error = 0-ERR_NO_MEM;
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return( NULL );
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}
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/* Initialize the font plotter with the requested settings: */
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memset( fplotter, 0, sizeof(FONT_PLOTTER));
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fplotter->vdi_handle = vdihandle;
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fplotter->name = name;
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fplotter->flags = 0;
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fplotter->flags = 0;
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fplotter->flags |= flags;
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for( i = 0; ; i++) {
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if( font_driver_table[i].name == NULL ) {
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res = 0-ERR_PLOTTER_NOT_AVAILABLE;
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break;
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} else {
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if( strcmp(name, font_driver_table[i].name) == 0 ) {
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if( font_driver_table[i].ctor ) {
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res = font_driver_table[i].ctor( fplotter );
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*error = 0;
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} else {
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res = 0-ERR_PLOTTER_NOT_AVAILABLE;
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*error = res;
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return (NULL);
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}
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break;
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}
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}
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}
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if( res < 0 ) {
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free( fplotter );
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*error = res;
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return( NULL );
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}
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return( fplotter );
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/* Find the selector string in the font plotter table: */
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/* And bail out when the font plotter is not available: */
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for( i = 0; ; i++) {
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if( font_driver_table[i].name == NULL ) {
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res = 0-ERR_PLOTTER_NOT_AVAILABLE;
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break;
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} else {
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if( strcmp(name, font_driver_table[i].name) == 0 ) {
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if( font_driver_table[i].ctor ) {
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res = font_driver_table[i].ctor( fplotter );
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*error = 0;
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} else {
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res = 0-ERR_PLOTTER_NOT_AVAILABLE;
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*error = res;
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return (NULL);
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}
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break;
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}
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}
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}
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if( res < 0 ) {
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free( fplotter );
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*error = res;
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return( NULL );
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}
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return( fplotter );
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}
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/*
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Free an font plotter
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*/
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int delete_font_plotter(FONT_PLOTTER p)
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{
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if( p ) {
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p->dtor(p);
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free( p );
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p = NULL;
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}
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else
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return( -1 );
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return( 0 );
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/*
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Free an font plotter
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*/
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int delete_font_plotter(FONT_PLOTTER p)
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{
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if( p ) {
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p->dtor(p);
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free( p );
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p = NULL;
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}
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else
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return( -1 );
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return( 0 );
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}
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@ -1,79 +1,84 @@
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#ifndef FONT_PLOT_H
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#define FONT_PLOT_H
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#include <stdlib.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <math.h>
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#include <assert.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <math.h>
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#include <assert.h>
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#include <string.h>
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#include "desktop/plot_style.h"
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#include "desktop/plot_style.h"
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#include "image/bitmap.h"
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#include "utils/log.h"
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#include "atari/bitmap.h"
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#include "atari/bitmap.h"
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#include "atari/plot/eddi.h"
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#include "atari/gui.h"
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#include "atari/misc.h"
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#include "atari/gui.h"
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#include "atari/misc.h"
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#include "atari/osspec.h"
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typedef struct s_font_plotter * FONT_PLOTTER;
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typedef struct s_font_plotter * FONT_PLOTTER;
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struct s_font_driver_table_entry
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{
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const char * name;
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int (*ctor)( FONT_PLOTTER self );
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int flags;
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struct s_font_driver_table_entry
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{
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const char * name;
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int (*ctor)( FONT_PLOTTER self );
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int flags;
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};
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/* declaration of font plotter member functions: (_fpmf_ prefix) */
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typedef int (*_fpmf_str_width)( FONT_PLOTTER self, const plot_font_style_t *fstyle,
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const char * str, size_t length, int * width);
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typedef int (*_fpmf_str_split)( FONT_PLOTTER self, const plot_font_style_t *fstyle,
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const char *string, size_t length,
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int x, size_t *char_offset, int *actual_x);
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typedef int (*_fpmf_pixel_pos)( FONT_PLOTTER self, const plot_font_style_t *fstyle,
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const char *string, size_t length,
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int x, size_t *char_offset, int *actual_x);
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typedef int (*_fpmf_text)( FONT_PLOTTER self, int x, int y, const char *text,
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size_t length, const plot_font_style_t *fstyle);
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/* declaration of font plotter member functions: (_fpmf_ prefix) */
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typedef int (*_fpmf_str_width)( FONT_PLOTTER self, const plot_font_style_t *fstyle,
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const char * str, size_t length, int * width);
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typedef int (*_fpmf_str_split)( FONT_PLOTTER self, const plot_font_style_t *fstyle,
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const char *string, size_t length,
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int x, size_t *char_offset, int *actual_x);
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typedef int (*_fpmf_pixel_pos)( FONT_PLOTTER self, const plot_font_style_t *fstyle,
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const char *string, size_t length,
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int x, size_t *char_offset, int *actual_x);
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typedef int (*_fpmf_text)( FONT_PLOTTER self, int x, int y, const char *text,
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size_t length, const plot_font_style_t *fstyle);
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typedef void (*_fpmf_draw_glyph)(FONT_PLOTTER self, GRECT * clip, GRECT * loc,
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uint8_t * pixdata, int pitch, uint32_t colour);
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typedef int (*_fpmf_dtor)( FONT_PLOTTER self );
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typedef int (*_fpmf_dtor)( FONT_PLOTTER self );
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/* prototype of the font plotter "object" */
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struct s_font_plotter
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{
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char * name;
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int flags;
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int vdi_handle;
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void * priv_data;
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_fpmf_str_width str_width;
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_fpmf_str_split str_split;
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_fpmf_pixel_pos pixel_pos;
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/* prototype of the font plotter "object" */
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struct s_font_plotter
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{
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char * name;
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int flags;
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int vdi_handle;
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void * priv_data;
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_fpmf_str_width str_width;
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_fpmf_str_split str_split;
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_fpmf_pixel_pos pixel_pos;
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_fpmf_text text;
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_fpmf_draw_glyph draw_glyph;
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_fpmf_dtor dtor;
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_fpmf_draw_glyph draw_glyph;
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_fpmf_dtor dtor;
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};
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FONT_PLOTTER plot_get_text_plotter(void);
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/* Set the font plotting engine.
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*/
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void plot_set_text_plotter(FONT_PLOTTER font_plotter);
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void dump_font_drivers(void);
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FONT_PLOTTER new_font_plotter( int vdihandle, char * name, unsigned long flags,
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int * error);
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int delete_font_plotter( FONT_PLOTTER p );
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#ifdef WITH_VDI_FONT_DRIVER
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#include "atari/plot/font_vdi.h"
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#endif
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#ifdef WITH_INTERNAL_FONT_DRIVER
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#include "atari/plot/font_internal.h"
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#endif
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#ifdef WITH_FREETYPE_FONT_DRIVER
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#include "atari/plot/font_freetype.h"
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#ifdef WITH_VDI_FONT_DRIVER
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#include "atari/plot/font_vdi.h"
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#endif
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#ifdef WITH_INTERNAL_FONT_DRIVER
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#include "atari/plot/font_internal.h"
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#endif
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#ifdef WITH_FREETYPE_FONT_DRIVER
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#include "atari/plot/font_freetype.h"
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#endif
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#endif
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#endif
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@ -1974,6 +1974,16 @@ void plot_get_clip_grect(GRECT * out)
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out->g_h = clip.y1 - clip.y0;
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}
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FONT_PLOTTER plot_get_text_plotter()
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{
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return(fplotter);
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}
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void plot_set_text_plotter(FONT_PLOTTER font_plotter)
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{
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fplotter = font_plotter;
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}
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static bool plot_text(int x, int y, const char *text, size_t length, const plot_font_style_t *fstyle )
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{
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fplotter->text(fplotter, x, y, text, length, fstyle);
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