static bool nsfont_split(const plot_font_style_t *fstyle,
const char *string, size_t length,
int x, size_t *char_offset, int *actual_x)
{
const struct fb_font_desc* fb_font = fb_get_font(fstyle);
int c_off = *char_offset = x / fb_font->width;
if (*char_offset > length) {
*char_offset = length;
} else {
while (*char_offset > 0) {
if (string[*char_offset] == ' ')
break;
(*char_offset)--;
}
if (*char_offset == 0) {
*char_offset = c_off;
while (*char_offset < length &&
string[*char_offset] != ' ') {
(*char_offset)++;
}
}
}
*actual_x = *char_offset * fb_font->width;
return true;
}
static bool nsfont_width(const plot_font_style_t *fstyle,
const char *string, size_t length,
int *width)
{
const struct fb_font_desc* fb_font = fb_get_font(fstyle);
*width = fb_font->width * utf8_bounded_length(string, length);
return true;
}
static bool nsfont_position_in_string(const plot_font_style_t *fstyle,
const char *string, size_t length,
int x, size_t *char_offset, int *actual_x)
{
const struct fb_font_desc* fb_font = fb_get_font(fstyle);
*char_offset = (x + fb_font->width / 2) / fb_font->width;
if (*char_offset > length)
*char_offset = length;
*actual_x = *char_offset * fb_font->width;
return true;
}
static bool fb_1bpp_text(int x, int y, const struct css_style *style,
const char *text, size_t length, colour bg, colour c)
{
const struct fb_font_desc* fb_font = fb_get_font(style);
u8_t *video_char_start;
const u8_t *font_data;
int yloop;
unsigned char row;
int chr;
LOG(("%s(%d, %d, %p, %.*s , %d, 0x%lx, 0x%lx)\n", __func__,
x,y,style,length,text,length,bg,c));
for (chr=0; chr < length; chr++) {
video_char_start = fb_plotters_get_xy_loc(x + (chr * (fb_font->width)), y, fbinfo);
/* move our font-data to the correct position */
font_data = fb_font->data + (text[chr] * fb_font->height);
for (yloop = 0; yloop < fb_font->height; yloop++) {
row = font_data[yloop];
*video_char_start = row;
video_char_start += fbinfo->line_len;
}
}
return true;
/* copied from css/css.h - need to open the correct font here
* font properties *
css_font_family font_family;
struct {
css_font_size_type size;
union {
struct css_length length;
float absolute;
float percent;
} value;
} font_size;
css_font_style font_style;
css_font_variant font_variant;
css_font_weight font_weight;
*/
return true;
}
static bool framebuffer_plot_text(int x, int y, const char *text, size_t length,
const plot_font_style_t *fstyle)
{
const struct fb_font_desc* fb_font = fb_get_font(fstyle);
const uint32_t *chrp;
char *buffer = NULL;
int chr;
int blen;
nsfb_bbox_t loc;
utf8_to_font_encoding(fb_font, text, length, &buffer);
if (buffer == NULL)
return true;
/* y is given as the baseline, at 3/4 from top.
* we need it to the top */
y -= ((fb_font->height * 3) / 4);
/* the coord is the bottom-left of the pixels offset by 1 to make
* it work since fb coords are the top-left of pixels
*/
y += 1;
blen = strlen(buffer);
for (chr = 0; chr < blen; chr++) {
loc.x0 = x;
loc.y0 = y;
loc.x1 = loc.x0 + fb_font->width;
loc.y1 = loc.y0 + fb_font->height;
chrp = fb_font->data + ((unsigned char)buffer[chr] * fb_font->height);
nsfb_plot_glyph1(nsfb, &loc, (uint8_t *)chrp, 32, fstyle->foreground);
x += fb_font->width;
}
free(buffer);
return true;
}
