mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-12-19 02:32:44 +03:00
157 lines
4.4 KiB
C
157 lines
4.4 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/>.
|
|
*/
|
|
|
|
#include <inttypes.h>
|
|
#include <assert.h>
|
|
#include <stdbool.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "utils/utf8.h"
|
|
#include "utils/log.h"
|
|
#include "utils/nsoption.h"
|
|
#include "desktop/gui_layout.h"
|
|
#include "desktop/mouse.h"
|
|
#include "desktop/plotters.h"
|
|
|
|
#include "atari/gui.h"
|
|
#include "atari/plot/fontplot.h"
|
|
#include "atari/plot/plot.h"
|
|
#include "atari/findfile.h"
|
|
#include "atari/font.h"
|
|
|
|
extern FONT_PLOTTER fplotter;
|
|
|
|
|
|
/**
|
|
* Find the position in a string where an x coordinate falls.
|
|
*
|
|
* \param[in] fstyle style for this text
|
|
* \param[in] string UTF-8 string to measure
|
|
* \param[in] length length of string, in bytes
|
|
* \param[in] x coordinate to search for
|
|
* \param[out] char_offset updated to offset in string of actual_x, [0..length]
|
|
* \param[out] actual_x updated to x coordinate of character closest to x
|
|
* \return NSERROR_OK and char_offset and actual_x updated or appropriate error code on faliure
|
|
*/
|
|
static nserror
|
|
atari_font_position(const plot_font_style_t *fstyle,
|
|
const char *string,
|
|
size_t length,
|
|
int x,
|
|
size_t *char_offset,
|
|
int *actual_x)
|
|
{
|
|
float scale = plot_get_scale();
|
|
|
|
if (scale != 1.0) {
|
|
plot_font_style_t newstyle = *fstyle;
|
|
newstyle.size = (int)((float)fstyle->size*scale);
|
|
fplotter->pixel_pos(fplotter, &newstyle, string, length, x,
|
|
char_offset, actual_x);
|
|
} else {
|
|
fplotter->pixel_pos(fplotter, fstyle, string, length, x,
|
|
char_offset, actual_x);
|
|
}
|
|
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Find where to split a string to make it fit a width.
|
|
*
|
|
* \param[in] fstyle style for this text
|
|
* \param[in] string UTF-8 string to measure
|
|
* \param[in] length length of string, in bytes
|
|
* \param[in] x width available
|
|
* \param[out] char_offset updated to offset in string of actual_x, [1..length]
|
|
* \param[out] actual_x updated to x coordinate of character closest to x
|
|
* \return NSERROR_OK or appropriate error code on faliure
|
|
*
|
|
* On exit, char_offset indicates first character after split point.
|
|
*
|
|
* \note char_offset of 0 must never be returned.
|
|
*
|
|
* Returns:
|
|
* char_offset giving split point closest to x, where actual_x <= x
|
|
* else
|
|
* char_offset giving split point closest to x, where actual_x > x
|
|
*
|
|
* Returning char_offset == length means no split possible
|
|
*/
|
|
static nserror
|
|
atari_font_split(const plot_font_style_t *fstyle,
|
|
const char *string,
|
|
size_t length,
|
|
int x,
|
|
size_t *char_offset,
|
|
int *actual_x)
|
|
{
|
|
float scale = plot_get_scale();
|
|
|
|
if (scale != 1.0) {
|
|
plot_font_style_t newstyle = *fstyle;
|
|
newstyle.size = (int)((float)fstyle->size*scale);
|
|
fplotter->str_split(fplotter, &newstyle, string, length, x,
|
|
char_offset, actual_x);
|
|
} else {
|
|
fplotter->str_split(fplotter, fstyle, string, length, x,
|
|
char_offset, actual_x);
|
|
}
|
|
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Measure the width of a string.
|
|
*
|
|
* \param[in] fstyle plot style for this text
|
|
* \param[in] string UTF-8 string to measure
|
|
* \param[in] length length of string, in bytes
|
|
* \param[out] width updated to width of string[0..length)
|
|
* \return NSERROR_OK and width updated or appropriate error code on faliure
|
|
*/
|
|
static nserror
|
|
atari_font_width(const plot_font_style_t *fstyle,
|
|
const char *str,
|
|
size_t length,
|
|
int * width)
|
|
{
|
|
float scale = plot_get_scale();
|
|
|
|
if (scale != 1.0) {
|
|
plot_font_style_t newstyle = *fstyle;
|
|
newstyle.size = (int)((float)fstyle->size*scale);
|
|
fplotter->str_width(fplotter, &newstyle, str, length, width);
|
|
} else {
|
|
fplotter->str_width(fplotter, fstyle, str, length, width);
|
|
}
|
|
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
|
|
static struct gui_layout_table layout_table = {
|
|
.width = atari_font_width,
|
|
.position = atari_font_position,
|
|
.split = atari_font_split,
|
|
};
|
|
|
|
struct gui_layout_table *atari_layout_table = &layout_table;
|