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Add simple line wrapping

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2010-03-16 14:13:32 +01:00
parent cacd173d3e
commit f588f1c8b6
5 changed files with 113 additions and 78 deletions
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2
commands/help.c
View file

@ -77,7 +77,7 @@ grub_cmd_help (grub_extcmd_t ext __attribute__ ((unused)), int argc,
}
grub_print_ucs4 (unicode_command_help,
unicode_last_screen_position, term);
unicode_last_screen_position, 0, 0, term);
if (!(cnt % 2))
grub_print_spaces (term, grub_term_width (term) / 2
- stringwidth);

4
include/grub/normal.h
View file

@ -77,8 +77,10 @@ void grub_parse_color_name_pair (grub_uint8_t *ret, const char *name);
/* Defined in `menu_text.c'. */
void grub_wait_after_message (void);
void grub_print_ucs4 (const grub_uint32_t * str,
void
grub_print_ucs4 (const grub_uint32_t * str,
const grub_uint32_t * last_position,
int margin_left, int margin_right,
struct grub_term_output *term);
grub_ssize_t grub_getstringwidth (grub_uint32_t * str,
const grub_uint32_t * last_position,

78
normal/charset.c
View file

@ -544,7 +544,7 @@ grub_unicode_aglomerate_comb (const grub_uint32_t *in, grub_size_t inlen,
}
static grub_ssize_t
line_wrap (struct grub_unicode_glyph *visual_out,
bidi_line_wrap (struct grub_unicode_glyph *visual_out,
struct grub_unicode_glyph *visual,
grub_size_t visual_len, unsigned *levels,
grub_ssize_t (*getcharwidth) (const struct grub_unicode_glyph *visual),
@ -581,8 +581,6 @@ line_wrap (struct grub_unicode_glyph *visual_out,
line_width += last_width = getcharwidth (&visual[k]);
if (((grub_ssize_t) maxwidth > 0
&& line_width > (grub_ssize_t) maxwidth) || k == visual_len)
{
if (levels)
{
unsigned min_odd_level = 0xffffffff;
unsigned max_level = 0;
@ -613,7 +611,6 @@ line_wrap (struct grub_unicode_glyph *visual_out,
for (i = line_start; i < k; i++)
if (is_mirrored (visual[i].base) && levels[i])
visual[i].attributes |= GRUB_UNICODE_GLYPH_ATTRIBUTE_MIRROR;
}
outptr += k - line_start;
if (k != visual_len)
@ -927,7 +924,7 @@ grub_bidi_line_logical_to_visual (const grub_uint32_t *logical,
{
grub_ssize_t ret;
ret = line_wrap (visual_out, visual, visual_len, levels,
ret = bidi_line_wrap (visual_out, visual, visual_len, levels,
getcharwidth, maxwidth, startwidth);
grub_free (levels);
grub_free (visual);
@ -1056,7 +1053,11 @@ grub_putcode (grub_uint32_t code, struct grub_term_output *term)
.combining = 0
};
if (grub_unicode_get_comb_type (code) != GRUB_UNICODE_COMB_NONE)
if (grub_unicode_get_comb_type (code) != GRUB_UNICODE_COMB_NONE
&& ((term->flags & GRUB_TERM_CODE_TYPE_MASK)
!= GRUB_TERM_CODE_TYPE_UTF8_LOGICAL
&& (term->flags & GRUB_TERM_CODE_TYPE_MASK)
!= GRUB_TERM_CODE_TYPE_UTF8_VISUAL))
return;
if (code == '\t' && term->getxy)
@ -1095,12 +1096,33 @@ grub_putcode (grub_uint32_t code, struct grub_term_output *term)
grub_putcode ('\r', term);
}
void
grub_print_ucs4 (const grub_uint32_t * str,
const grub_uint32_t * last_position,
int margin_left, int margin_right,
struct grub_term_output *term)
{
grub_size_t line_len;
grub_ssize_t startwidth;
{
struct grub_unicode_glyph space_glyph = {
.base = ' ',
.variant = 0,
.attributes = 0,
.ncomb = 0,
.combining = 0
};
line_len = grub_term_width (term)
- grub_term_getcharwidth (term, &space_glyph)
* (margin_left + margin_right) - 1;
}
if (((term->getxy () >> 8) & 0xff) < margin_left)
grub_print_spaces (term, margin_left - ((term->getxy () >> 8) & 0xff));
startwidth = ((term->getxy () >> 8) & 0xff) - margin_left;
if ((term->flags & GRUB_TERM_CODE_TYPE_MASK)
== GRUB_TERM_CODE_TYPE_UCS4_VISUAL
|| (term->flags & GRUB_TERM_CODE_TYPE_MASK)
@ -1109,12 +1131,9 @@ grub_print_ucs4 (const grub_uint32_t * str,
grub_ssize_t visual_len;
struct grub_unicode_glyph *visual;
struct grub_unicode_glyph *visual_ptr;
visual_len = grub_bidi_logical_to_visual (str,
last_position - str,
&visual,
term->getcharwidth,
grub_term_width (term),
(term->getxy () >> 8) & 0xff);
visual_len = grub_bidi_logical_to_visual (str, last_position - str,
&visual, term->getcharwidth,
line_len, startwidth);
if (visual_len < 0)
{
grub_print_error ();
@ -1128,6 +1147,8 @@ grub_print_ucs4 (const grub_uint32_t * str,
.ncomb = 0,
.combining = 0
};
if (visual_ptr->base == '\n')
grub_print_spaces (term, margin_right);
if ((term->flags & GRUB_TERM_CODE_TYPE_MASK)
== GRUB_TERM_CODE_TYPE_UTF8_VISUAL)
{
@ -1155,6 +1176,7 @@ grub_print_ucs4 (const grub_uint32_t * str,
{
c.base = '\r';
term->putchar (&c);
grub_print_spaces (term, margin_left);
}
grub_free (visual_ptr->combining);
}
@ -1164,9 +1186,37 @@ grub_print_ucs4 (const grub_uint32_t * str,
{
const grub_uint32_t *ptr;
grub_ssize_t line_width = startwidth;
grub_ssize_t maxwidth = line_len;
for (ptr = str; ptr < last_position; ptr++)
{
struct grub_unicode_glyph c = {
.variant = 0,
.attributes = 0,
.ncomb = 0,
.combining = 0
};
grub_ssize_t last_width = 0;
if (grub_unicode_get_comb_type (*ptr) == GRUB_UNICODE_COMB_NONE)
{
c.base = *ptr;
line_width += last_width = term->getcharwidth (&c);
}
if (line_width > maxwidth || *ptr == '\n')
{
grub_print_spaces (term, margin_right);
grub_putcode ('\n', term);
grub_putcode ('\r', term);
line_width = last_width;
grub_print_spaces (term, margin_left);
}
if (*ptr != '\n')
grub_putcode (*ptr, term);
}
}
}
void
@ -1179,7 +1229,7 @@ grub_xputs_normal (const char *str)
grub_uint32_t *unicode_str, *unicode_last_position;
grub_utf8_to_ucs4_alloc (str, &unicode_str,
&unicode_last_position);
grub_print_ucs4 (unicode_str, unicode_last_position, term);
grub_print_ucs4 (unicode_str, unicode_last_position, 0, 0, term);
grub_free (unicode_str);
}
}

2
normal/main.c
View file

@ -429,7 +429,7 @@ grub_normal_init_page (struct grub_term_output *term)
posx = (grub_term_width (term) - posx) / 2;
grub_term_gotoxy (term, posx, 1);
grub_print_ucs4 (unicode_msg, last_position, term);
grub_print_ucs4 (unicode_msg, last_position, 0, 0, term);
grub_printf("\n\n");
grub_free (unicode_msg);
}

35
normal/menu_text.c
View file

@ -38,14 +38,6 @@ struct menu_viewer_data
struct grub_term_output *term;
};
static void
print_spaces (int number_spaces, struct grub_term_output *term)
{
int i;
for (i = 0; i < number_spaces; i++)
grub_putcode (' ', term);
}
grub_ssize_t
grub_getstringwidth (grub_uint32_t * str, const grub_uint32_t * last_position,
struct grub_term_output *term)
@ -65,26 +57,11 @@ void
grub_print_message_indented (const char *msg, int margin_left, int margin_right,
struct grub_term_output *term)
{
int line_len;
grub_uint32_t *unicode_msg;
grub_uint32_t *last_position;
int msg_len;
{
struct grub_unicode_glyph pseudo_glyph = {
.base = ' ',
.variant = 0,
.attributes = 0,
.ncomb = 0,
.combining = 0
};
line_len = grub_term_width (term)
- grub_term_getcharwidth (term, &pseudo_glyph)
* (margin_left + margin_right);
}
msg_len = grub_utf8_to_ucs4_alloc (msg, &unicode_msg, &last_position);
if (msg_len < 0)
@ -92,6 +69,11 @@ grub_print_message_indented (const char *msg, int margin_left, int margin_right,
return;
}
grub_print_ucs4 (unicode_msg, last_position, margin_left, margin_right, term);
#if 0
int line_len;
grub_uint32_t *current_position = unicode_msg;
grub_uint32_t *next_new_line = unicode_msg;
@ -126,6 +108,7 @@ grub_print_message_indented (const char *msg, int margin_left, int margin_right,
current_position = next_new_line;
first_loop = 0;
}
#endif
grub_free (unicode_msg);
}
@ -280,7 +263,7 @@ print_entry (int y, int highlight, grub_menu_entry_t entry,
}
grub_print_ucs4 (unicode_title,
unicode_title + last_printed, term);
unicode_title + last_printed, 0, 0, term);
if (last_printed != len)
{
@ -397,7 +380,7 @@ menu_text_print_timeout (int timeout, void *dataptr)
grub_print_message_indented (msg_translated, 3, 0, data->term);
posx = grub_term_getxy (data->term) >> 8;
print_spaces (grub_term_width (data->term) - posx - 1, data->term);
grub_print_spaces (data->term, grub_term_width (data->term) - posx - 1);
grub_term_gotoxy (data->term,
grub_term_cursor_x (data->term),
@ -455,7 +438,7 @@ menu_text_clear_timeout (void *dataptr)
struct menu_viewer_data *data = dataptr;
grub_term_gotoxy (data->term, 0, grub_term_height (data->term) - 3);
print_spaces (grub_term_width (data->term) - 1, data->term);
grub_print_spaces (data->term, grub_term_width (data->term) - 1);
grub_term_gotoxy (data->term, grub_term_cursor_x (data->term),
GRUB_TERM_FIRST_ENTRY_Y + data->offset);
grub_term_refresh (data->term);