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tasn's rtl pathes and improvements... continued! 

SVN revision: 40715
This commit is contained in:
Carsten Haitzler 2009-05-18 06:08:15 +00:00
parent 024dc3c51e
commit e999c88e80
14 changed files with 526 additions and 90 deletions
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12
legacy/edje/src/lib/edje_text.c
View File

@ -168,13 +168,13 @@ _edje_text_fit_x(Edje *ed, Edje_Real_Part *ep,
if (tw > sw)
{
if (params->text.elipsis != 0.0)
c1 = evas_object_text_char_coords_get(ep->object,
-p + l, th / 2,
NULL, NULL, NULL, NULL);
/* should be the last in text! not the rightmost */
c1 = evas_object_text_last_up_to_pos(ep->object,
-p + l, th / 2);
if (params->text.elipsis != 1.0)
c2 = evas_object_text_char_coords_get(ep->object,
-p + sw - r, th / 2,
NULL, NULL, NULL, NULL);
/* should be the last in text! not the rightmost */
c2 = evas_object_text_last_up_to_pos(ep->object,
-p + sw - r, th / 2);
if ((c1 < 0) && (c2 < 0))
{
c1 = 0;

1
legacy/evas/src/lib/Evas.h
View File

@ -648,6 +648,7 @@ extern "C" {
EAPI Evas_Coord evas_object_text_inset_get (const Evas_Object *obj) EINA_WARN_UNUSED_RESULT EINA_ARG_NONNULL(1) EINA_PURE;
EAPI int evas_object_text_char_pos_get (const Evas_Object *obj, int pos, Evas_Coord *cx, Evas_Coord *cy, Evas_Coord *cw, Evas_Coord *ch) EINA_ARG_NONNULL(1);
EAPI int evas_object_text_char_coords_get (const Evas_Object *obj, Evas_Coord x, Evas_Coord y, Evas_Coord *cx, Evas_Coord *cy, Evas_Coord *cw, Evas_Coord *ch) EINA_ARG_NONNULL(1);
EAPI int evas_object_text_last_up_to_pos(const Evas_Object *obj, Evas_Coord x, Evas_Coord y) EINA_ARG_NONNULL(1);
EAPI Evas_Text_Style_Type evas_object_text_style_get (const Evas_Object *obj) EINA_WARN_UNUSED_RESULT EINA_ARG_NONNULL(1) EINA_PURE;
EAPI void evas_object_text_style_set (Evas_Object *obj, Evas_Text_Style_Type type) EINA_ARG_NONNULL(1);
EAPI void evas_object_text_shadow_color_set (Evas_Object *obj, int r, int g, int b, int a) EINA_ARG_NONNULL(1);

34
legacy/evas/src/lib/canvas/evas_object_text.c
View File

@ -614,6 +614,40 @@ evas_object_text_char_pos_get(const Evas_Object *obj, int pos, Evas_Coord *cx, E
return ret;
}
/**
* Returns the logical position of the last char in the text
* up to the pos given. this is NOT the position of the last char
* because of the possibilty of RTL in the text.
* To be documented.
*
* FIXME: To be fixed.
*
*/
EAPI int
evas_object_text_last_up_to_pos(const Evas_Object *obj, Evas_Coord x, Evas_Coord y)
{
Evas_Object_Text *o;
int inset;
MAGIC_CHECK(obj, Evas_Object, MAGIC_OBJ);
return -1;
MAGIC_CHECK_END();
o = (Evas_Object_Text *)(obj->object_data);
MAGIC_CHECK(o, Evas_Object_Text, MAGIC_OBJ_TEXT);
return -1;
MAGIC_CHECK_END();
if (!o->engine_data) return -1;
if (!o->cur.text) return -1;
inset =
ENFN->font_inset_get(ENDT, o->engine_data, o->cur.text);
return ENFN->font_last_up_to_pos(ENDT,
o->engine_data,
o->cur.text,
x + inset,
y - o->max_ascent);
}
/**
* To be documented.
*

19
legacy/evas/src/lib/canvas/evas_object_textblock.c
View File

@ -1540,17 +1540,15 @@ _layout_item_new(Ctxt *c __UNUSED__, Evas_Object_Textblock_Format *fmt, char *st
static int
_layout_text_cutoff_get(Ctxt *c, Evas_Object_Textblock_Format *fmt, Evas_Object_Textblock_Item *it)
{
int cx, cy, cw, ch;
if (fmt->font.font)
return c->ENFN->font_char_at_coords_get(c->ENDT, fmt->font.font, it->text,
return c->ENFN->font_last_up_to_pos(c->ENDT, fmt->font.font, it->text,
c->w -
c->o->style_pad.l -
c->o->style_pad.r -
c->marginl -
c->marginr -
c->x,
0, &cx, &cy, &cw, &ch);
0);
return -1;
}
@ -1590,7 +1588,6 @@ _layout_word_start(char *str, int start)
if (_is_white(chr)) break;
tp = p;
}
p = tp;
if (p < 0) p = 0;
if ((p >= 0) && (_is_white(chr)))
evas_common_font_utf8_get_next((unsigned char *)(str), &p);
@ -1858,11 +1855,14 @@ _layout_text_append(Ctxt *c, Evas_Object_Textblock_Format *fmt, Evas_Object_Text
c->marginl - c->marginr)))
{
wrap = _layout_text_cutoff_get(c, fmt, it);
if (wrap == 0) wrap = 1;
/* next line is instead of that awful wrap = 1*/
if (wrap == 0)
evas_common_font_utf8_get_next((unsigned char *)str, &wrap);
if (wrap > 0)
{
if (fmt->wrap_word)
{
{
index = wrap;
ch = evas_common_font_utf8_get_next((unsigned char *)str, &index);
if (!_is_white(ch))
@ -1876,7 +1876,10 @@ _layout_text_append(Ctxt *c, Evas_Object_Textblock_Format *fmt, Evas_Object_Text
{
_layout_item_text_cutoff(c, it, wrap);
twrap = wrap;
ch = evas_common_font_utf8_get_next((unsigned char *)str, &twrap);
/*we don't want to move next, that's why it's
* commented out.
* ch = evas_common_font_utf8_get_next((unsigned char *)str, &twrap);
*/
str = str + twrap;
}
/* intersects a word */

29
legacy/evas/src/lib/engines/common/evas_font_draw.c
View File

@ -2,11 +2,6 @@
* vim:ts=8:sw=3:sts=8:noexpandtab:cino=>5n-3f0^-2{2
*/
/* Internationalization (RTL and Arabic contextualizing)
* was added by Tom Hacohen (tom@stosb.com)
*/
#include "evas_common.h"
#include "evas_blend_private.h"
@ -177,13 +172,14 @@ evas_common_font_glyph_search(RGBA_Font *fn, RGBA_Font_Int **fi_ret, int gl)
static void
evas_common_font_draw_internal(RGBA_Image *dst, RGBA_Draw_Context *dc, RGBA_Font *fn, int x, int y, const char *text,
evas_common_font_draw_internal(RGBA_Image *dst, RGBA_Draw_Context *dc, RGBA_Font *fn, int x, int y, const char *in_text,
RGBA_Gfx_Func func, int ext_x, int ext_y, int ext_w, int ext_h, RGBA_Font_Int *fi,
int im_w, int im_h __UNUSED__, int use_kerning
)
{
int pen_x, pen_y;
int chr;
const char *text = in_text;
FT_Face pface = NULL;
FT_UInt prev_index;
DATA32 *im;
@ -191,18 +187,17 @@ evas_common_font_draw_internal(RGBA_Image *dst, RGBA_Draw_Context *dc, RGBA_Font
int char_index = 0; /* the index of the current char */
#ifdef INTERNATIONAL_SUPPORT
int bidi_err = 0;
int len = 0;
/*FIXME: should get the direction by parmater */
FriBidiCharType direction = FRIBIDI_TYPE_ON;
FriBidiLevel *level_list;
EvasIntlParType direction = FRIBIDI_TYPE_ON;
EvasIntlLevel *level_list;
/* change the text to visual ordering and update the level list
* for as minimum impact on the code as possible just use text as an
* holder, will change in the future.*/
{
char *tmp = evas_intl_utf8_to_visual(text, &bidi_err, &direction, &level_list);
text = (tmp) ? tmp : text;
}
char *visual_text = evas_intl_utf8_to_visual(in_text, &len, &direction, NULL, NULL, &level_list);
text = (visual_text) ? visual_text : in_text;
#endif
pen_x = x;
@ -217,6 +212,7 @@ evas_common_font_draw_internal(RGBA_Image *dst, RGBA_Draw_Context *dc, RGBA_Font
int gl, kern;
gl = evas_common_font_utf8_get_next((unsigned char *)text, &chr);
if (gl == 0) break;
index = evas_common_font_glyph_search(fn, &fi, gl);
/* hmmm kerning means i can't sanely do my own cached metric tables! */
@ -390,11 +386,8 @@ evas_common_font_draw_internal(RGBA_Image *dst, RGBA_Draw_Context *dc, RGBA_Font
prev_index = index;
}
#ifdef INTERNATIONAL_SUPPORT
if (bidi_err >= 0)
{
free(level_list);
free(text);
}
if (level_list) free(level_list);
if (visual_text) free(visual_text);
#endif
}

5
legacy/evas/src/lib/engines/common/evas_font_main.c
View File

@ -196,12 +196,13 @@ evas_common_font_utf8_get_prev(const unsigned char *buf, int *iindex)
if (index <= 0)
return 0;
d = buf[index--];
index--;
while ((index > 0) && ((buf[index] & 0xc0) == 0x80))
index--;
len = *iindex - index;
d = buf[index];
if (len == 1)
r = d;
else if (len == 2)

368
legacy/evas/src/lib/engines/common/evas_font_query.c
View File

@ -1,5 +1,7 @@
#include "evas_common.h"
#include "evas_intl_utils.h" /*defines INTERNATIONAL_SUPPORT if possible */
EAPI int
evas_common_font_query_kerning(RGBA_Font_Int* fi,
FT_UInt prev, FT_UInt index,
@ -57,7 +59,10 @@ evas_common_font_query_kerning(RGBA_Font_Int* fi,
return error;
}
/* string extents */
/* string extents
* Note: no need for special rtl handling
* we can assume there's not between languages kerning
* and that spaces get the same wide anywhere. */
EAPI void
evas_common_font_query_size(RGBA_Font *fn, const char *text, int *w, int *h)
{
@ -126,6 +131,7 @@ evas_common_font_query_size(RGBA_Font *fn, const char *text, int *w, int *h)
if (h) *h = evas_common_font_max_ascent_get(fn) + evas_common_font_max_descent_get(fn);
}
/* text x inset */
EAPI int
evas_common_font_query_inset(RGBA_Font *fn, const char *text)
@ -163,7 +169,10 @@ evas_common_font_query_inset(RGBA_Font *fn, const char *text)
return fg->glyph_out->left;
}
/* h & v advance */
/* h & v advance
* Note: no need for special rtl handling
* we can assume there's not between languages kerning
* and that spaces get the same wide anywhere. */
EAPI void
evas_common_font_query_advance(RGBA_Font *fn, const char *text, int *h_adv, int *v_adv)
{
@ -216,19 +225,34 @@ evas_common_font_query_advance(RGBA_Font *fn, const char *text, int *h_adv, int
if (h_adv) *h_adv = pen_x - start_x;
}
/* x y w h for char at char pos */
EAPI int
evas_common_font_query_char_coords(RGBA_Font *fn, const char *text, int pos, int *cx, int *cy, int *cw, int *ch)
evas_common_font_query_char_coords(RGBA_Font *fn, const char *in_text, int pos, int *cx, int *cy, int *cw, int *ch)
{
int use_kerning;
int pen_x, pen_y;
int prev_chr_end;
int chr;
int asc, desc;
int char_index = 0; /* the index of the current char */
int position;
const char *text = in_text;
int ret_val = 0;
FT_UInt prev_index;
RGBA_Font_Int *fi;
FT_Face pface = NULL;
#ifdef INTERNATIONAL_SUPPORT
int len = 0;
EvasIntlParType direction = FRIBIDI_TYPE_ON;
EvasIntlLevel *level_list;
EvasIntlStrIndex *logical_to_visual;
char *visual_text = evas_intl_utf8_to_visual(in_text, &len, &direction, &logical_to_visual, NULL, &level_list);
text = (visual_text) ? visual_text : in_text;
#endif
fi = fn->fonts->data;
pen_x = 0;
@ -239,7 +263,27 @@ evas_common_font_query_char_coords(RGBA_Font *fn, const char *text, int pos, int
prev_chr_end = 0;
asc = evas_common_font_max_ascent_get(fn);
desc = evas_common_font_max_descent_get(fn);
for (chr = 0; text[chr];)
/* find the actual index, not the byte position */
position = 0;
chr = 0;
while (in_text[chr] && chr < pos) {
evas_common_font_utf8_get_next((unsigned char *)in_text, &chr);
position++;
}
/* if it's a bad position, break */
if (chr != pos) goto end;
/* if it's the end, the correct position is one after */
if (!in_text[chr]) position++;
#ifdef INTERNATIONAL_SUPPORT
/* if it's an in string position (not end), get logical position */
if (position < len)
position = evas_intl_position_logical_to_visual(logical_to_visual, position);
#endif
for (char_index = 0, chr = 0; text[chr]; char_index++)
{
int pchr;
FT_UInt index;
@ -249,16 +293,33 @@ evas_common_font_query_char_coords(RGBA_Font *fn, const char *text, int pos, int
pchr = chr;
gl = evas_common_font_utf8_get_next((unsigned char *)text, &chr);
if (gl == 0) break;
index = evas_common_font_glyph_search(fn, &fi, gl);
kern = 0;
/* hmmm kerning means i can't sanely do my own cached metric tables! */
/* grrr - this means font face sharing is kinda... not an option if */
/* you want performance */
if ((use_kerning) && (prev_index) && (index) &&
(pface == fi->src->ft.face))
if (evas_common_font_query_kerning(fi, prev_index, index, &kern))
pen_x += kern;
(pface == fi->src->ft.face))
{
#ifdef INTERNATIONAL_SUPPORT
/* if it's rtl, the kerning matching should be reversed, i.e prev
* index is now the index and the other way around. */
if (evas_intl_is_rtl_char(level_list, char_index))
{
if (evas_common_font_query_kerning(fi, index, prev_index, &kern))
pen_x += kern;
}
else
#endif
{
if (evas_common_font_query_kerning(fi, prev_index, index, &kern))
pen_x += kern;
}
}
pface = fi->src->ft.face;
fg = evas_common_font_int_cache_glyph_get(fi, index);
@ -280,24 +341,171 @@ evas_common_font_query_char_coords(RGBA_Font *fn, const char *text, int pos, int
chr_w += (chr_x - prev_chr_end);
chr_x = prev_chr_end;
}
if (pchr == pos)
/* we need to see if the char at the visual position is the char wanted */
if (char_index == position)
{
if (cx) *cx = chr_x;
if (cy) *cy = -asc;
if (cw) *cw = chr_w;
if (ch) *ch = asc + desc;
return 1;
ret_val = 1;
goto end;
}
prev_chr_end = chr_x + chr_w;
pen_x += fg->glyph->advance.x >> 16;
prev_index = index;
}
return 0;
end:
#ifdef INTERNATIONAL_SUPPORT
if (level_list) free(level_list);
if (logical_to_visual) free(logical_to_visual);
if (visual_text) free(visual_text);
#endif
return ret_val;
}
/* char pos of text at xy pos */
EAPI int
evas_common_font_query_text_at_pos(RGBA_Font *fn, const char *text, int x, int y, int *cx, int *cy, int *cw, int *ch)
evas_common_font_query_text_at_pos(RGBA_Font *fn, const char *in_text, int x, int y, int *cx, int *cy, int *cw, int *ch)
{
int use_kerning;
int pen_x, pen_y;
int prev_chr_end;
int chr;
int asc, desc;
int char_index = 0; /* the index of the current char */
const char *text = in_text;
int ret_val = -1;
FT_UInt prev_index;
RGBA_Font_Int *fi;
FT_Face pface = NULL;
#ifdef INTERNATIONAL_SUPPORT
int len = 0;
EvasIntlParType direction = FRIBIDI_TYPE_ON;
EvasIntlLevel *level_list;
EvasIntlStrIndex *visual_to_logical;
char *visual_text = evas_intl_utf8_to_visual(in_text, &len, &direction, NULL, &visual_to_logical, &level_list);
text = (visual_text) ? visual_text : in_text;
#endif
fi = fn->fonts->data;
pen_x = 0;
pen_y = 0;
evas_common_font_size_use(fn);
use_kerning = FT_HAS_KERNING(fi->src->ft.face);
prev_index = 0;
prev_chr_end = 0;
asc = evas_common_font_max_ascent_get(fn);
desc = evas_common_font_max_descent_get(fn);
for (char_index = 0, chr = 0; text[chr]; char_index++)
{
int pchr;
FT_UInt index;
RGBA_Font_Glyph *fg;
int chr_x, chr_y, chr_w;
int gl, kern;
gl = evas_common_font_utf8_get_next((unsigned char *)text, &chr);
if (gl == 0) break;
index = evas_common_font_glyph_search(fn, &fi, gl);
kern = 0;
/* hmmm kerning means i can't sanely do my own cached metric tables! */
/* grrr - this means font face sharing is kinda... not an option if */
/* you want performance */
if ((use_kerning) && (prev_index) && (index) &&
(pface == fi->src->ft.face))
{
#ifdef INTERNATIONAL_SUPPORT
/* if it's rtl, the kerning matching should be reversed, i.e prev
* index is now the index and the other way around. */
if (evas_intl_is_rtl_char(level_list, char_index))
{
if (evas_common_font_query_kerning(fi, index, prev_index, &kern))
pen_x += kern;
}
else
#endif
{
if (evas_common_font_query_kerning(fi, prev_index, index, &kern))
pen_x += kern;
}
}
pface = fi->src->ft.face;
fg = evas_common_font_int_cache_glyph_get(fi, index);
if (!fg) continue;
if (kern < 0) kern = 0;
chr_x = ((pen_x - kern) + (fg->glyph_out->left));
chr_y = (pen_y + (fg->glyph_out->top));
chr_w = fg->glyph_out->bitmap.width + kern;
/* if (text[chr]) */
{
int advw;
advw = ((fg->glyph->advance.x + (kern << 16)) >> 16);
if (chr_w < advw) chr_w = advw;
}
if (chr_x > prev_chr_end)
{
chr_w += (chr_x - prev_chr_end);
chr_x = prev_chr_end;
}
if ((x >= chr_x) && (x <= (chr_x + chr_w)) &&
(y >= -asc) && (y <= desc))
{
if (cx) *cx = chr_x;
if (cy) *cy = -asc;
if (cw) *cw = chr_w;
if (ch) *ch = asc + desc;
#ifdef INTERNATIONAL_SUPPORT
{
int i;
int logical_chr;
int position = evas_intl_position_visual_to_logical(visual_to_logical, char_index);
/* ensure even if the list won't run */
pchr = 0;
for (logical_chr = 0, i = 0; i <= position; i++) {
pchr = logical_chr;
evas_common_font_utf8_get_next((unsigned char *)in_text, &logical_chr);
}
}
#endif
ret_val = pchr;
goto end;
}
prev_chr_end = chr_x + chr_w;
pen_x += fg->glyph->advance.x >> 16;
prev_index = index;
}
end:
#ifdef INTERNATIONAL_SUPPORT
if (level_list) free(level_list);
if (visual_to_logical) free(visual_to_logical);
if (visual_text) free(visual_text);
#endif
return ret_val;
}
/* last char pos of text at xy pos
* Note: no need for special rtl handling
* because the string is in logical order, which is correct */
EAPI int
evas_common_font_query_last_up_to_pos(RGBA_Font *fn, const char *text, int x, int y)
{
int use_kerning;
int pen_x, pen_y;
@ -362,10 +570,6 @@ evas_common_font_query_text_at_pos(RGBA_Font *fn, const char *text, int x, int y
if ((x >= chr_x) && (x <= (chr_x + chr_w)) &&
(y >= -asc) && (y <= desc))
{
if (cx) *cx = chr_x;
if (cy) *cy = -asc;
if (cw) *cw = chr_w;
if (ch) *ch = asc + desc;
return pchr;
}
prev_chr_end = chr_x + chr_w;
@ -374,3 +578,137 @@ evas_common_font_query_text_at_pos(RGBA_Font *fn, const char *text, int x, int y
}
return -1;
}
#if 0
/* last char pos of text at xy pos */
EAPI int
evas_common_font_query_last_up_to_pos(RGBA_Font *fn, const char *in_text, int x, int y)
{
int use_kerning;
int pen_x, pen_y;
int prev_chr_end;
int chr;
int asc, desc;
int char_index = 0; /* the index of the current char */
const char *text = in_text;
int ret_val = -1;
FT_UInt prev_index;
RGBA_Font_Int *fi;
FT_Face pface = NULL;
#ifdef INTERNATIONAL_SUPPORT
int len = 0;
EvasIntlParType direction = FRIBIDI_TYPE_ON;
EvasIntlLevel *level_list;
EvasIntlStrIndex *visual_to_logical;
char *visual_text = evas_intl_utf8_to_visual(in_text, &len, &direction, NULL, &visual_to_logical, &level_list);
text = (visual_text) ? visual_text : in_text;
#endif
fi = fn->fonts->data;
pen_x = 0;
pen_y = 0;
evas_common_font_size_use(fn);
use_kerning = FT_HAS_KERNING(fi->src->ft.face);
prev_index = 0;
prev_chr_end = 0;
asc = evas_common_font_max_ascent_get(fn);
desc = evas_common_font_max_descent_get(fn);
for (char_index = 0, chr = 0; text[chr]; char_index++)
{
int pchr;
FT_UInt index;
RGBA_Font_Glyph *fg;
int chr_x, chr_y, chr_w;
int gl, kern;
gl = evas_common_font_utf8_get_next((unsigned char *)text, &chr);
if (gl == 0) break;
index = evas_common_font_glyph_search(fn, &fi, gl);
kern = 0;
/* hmmm kerning means i can't sanely do my own cached metric tables! */
/* grrr - this means font face sharing is kinda... not an option if */
/* you want performance */
if ((use_kerning) && (prev_index) && (index) &&
(pface == fi->src->ft.face))
{
#ifdef INTERNATIONAL_SUPPORT
/* if it's rtl, the kerning matching should be reversed, i.e prev
* index is now the index and the other way around. */
if (evas_intl_is_rtl_char(level_list, char_index))
{
if (evas_common_font_query_kerning(fi, index, prev_index, &kern))
pen_x += kern;
}
else
#endif
{
if (evas_common_font_query_kerning(fi, prev_index, index, &kern))
pen_x += kern;
}
}
pface = fi->src->ft.face;
fg = evas_common_font_int_cache_glyph_get(fi, index);
if (!fg) continue;
if (kern < 0) kern = 0;
chr_x = ((pen_x - kern) + (fg->glyph_out->left));
chr_y = (pen_y + (fg->glyph_out->top));
chr_w = fg->glyph_out->bitmap.width + kern;
/* if (text[chr]) */
{
int advw;
advw = ((fg->glyph->advance.x + (kern << 16)) >> 16);
if (chr_w < advw) chr_w = advw;
}
if (chr_x > prev_chr_end)
{
chr_w += (chr_x - prev_chr_end);
chr_x = prev_chr_end;
}
if ((x >= chr_x) && (x <= (chr_x + chr_w)) &&
(y >= -asc) && (y <= desc))
{
#ifdef INTERNATIONAL_SUPPORT
{
/* returs the char at the same position as the char found,
* though in the logical string which ensures it's the last
*/
int i;
int logical_chr;
/* ensure even if the list won't run */
pchr = 0;
for (logical_chr = 0, i = 0; i <= char_index; i++) {
pchr = logical_chr;
evas_common_font_utf8_get_next((unsigned char *)in_text, &logical_chr);
}
}
#endif
ret_val = pchr;
goto end;
}
prev_chr_end = chr_x + chr_w;
pen_x += fg->glyph->advance.x >> 16;
prev_index = index;
}
end:
#ifdef INTERNATIONAL_SUPPORT
if (level_list) free(level_list);
if (visual_to_logical) free(visual_to_logical);
if (visual_text) free(visual_text);
#endif
return ret_val;
}
#endif

6
legacy/evas/src/lib/engines/common/evas_intl/evas_intl_arabic.c
View File

@ -1,7 +1,3 @@
/* Authors:
* Tom Hacohen (tom@stsob.com)
*/
#include "../evas_intl_utils.h"
#ifdef ARABIC_SUPPORT
@ -118,7 +114,7 @@ evas_intl_arabic_to_context(FriBidiChar *text)
/* check for empty string */
if (!*text)
return;
return 0;
len = _evas_intl_arabic_text_to_isolated(text);
/*FIXME: make it skip vowels */

4
legacy/evas/src/lib/engines/common/evas_intl/evas_intl_arabic.h
View File

@ -1,7 +1,9 @@
#ifndef _EVAS_INTL_ARABIC
#define _EVAS_INTL_ARABIC
#include "evas_intl_utils.h"
int
evas_intl_arabic_to_context(FriBidiChar *text);
evas_intl_arabic_to_context(EvasIntlChar *text);
#endif

86
legacy/evas/src/lib/engines/common/evas_intl_utils.c
View File

@ -1,23 +1,27 @@
/* Authors:
* Tom Hacohen (tom@stsob.com)
*/
#include <string.h>
#include <stdlib.h>
#include "evas_common.h"
#include "evas_intl_utils.h"
#ifdef USE_FRIBIDI
#ifdef INTERNATIONAL_SUPPORT
#include <fribidi/fribidi.h>
#define UTF8_BYTES_PER_CHAR 4
/* FIXME: fribidi_utf8_to_unicode should use char len and not byte len!*/
char *
evas_intl_utf8_to_visual(const char *text, int *ret_len, FriBidiCharType *direction, FriBidiLevel **embedding_level_list)
evas_intl_utf8_to_visual(const char *text,
int *ret_len,
EvasIntlParType *direction,
EvasIntlStrIndex **position_L_to_V_list,
EvasIntlStrIndex **position_V_to_L_list,
EvasIntlLevel **embedding_level_list)
{
FriBidiChar *unicode_in, *unicode_out;
EvasIntlStrIndex *tmp_L_to_V_list = NULL;
EvasIntlStrIndex *tmp_V_to_L_list = NULL;
EvasIntlLevel *tmp_level_list = NULL;
char *text_out;
size_t len;
size_t byte_len;
@ -27,15 +31,6 @@ evas_intl_utf8_to_visual(const char *text, int *ret_len, FriBidiCharType *direct
len = evas_string_char_len_get(text);
/* if there's nothing to do, return text
* one char draws are quite common */
if (len <= 1)
{
*ret_len = len;
*embedding_level_list = NULL;
return strdup(text);
}
byte_len = strlen(text); /* we need the actual number of bytes, not number of chars */
unicode_in = (FriBidiChar *)malloc(sizeof(FriBidiChar) * (len + 1));
@ -50,33 +45,59 @@ evas_intl_utf8_to_visual(const char *text, int *ret_len, FriBidiCharType *direct
unicode_out = (FriBidiChar *)malloc(sizeof(FriBidiChar) * (len + 1));
if (!unicode_out)
{
len = -2;
len = -1;
goto error2;
}
*embedding_level_list = (FriBidiLevel *)malloc(sizeof(FriBidiLevel) * len);
if (!*embedding_level_list)
{
len = -3;
goto error3;
}
if (embedding_level_list)
{
*embedding_level_list = (EvasIntlLevel *)malloc(sizeof(EvasIntlLevel) * len);
if (!*embedding_level_list)
{
len = -1;
goto error3;
}
tmp_level_list = *embedding_level_list;
}
if (position_L_to_V_list)
{
*position_L_to_V_list = (EvasIntlStrIndex *)malloc(sizeof(EvasIntlStrIndex) * len);
if (!*position_L_to_V_list)
{
len = -1;
goto error4;
}
tmp_L_to_V_list = *position_L_to_V_list;
}
if (position_V_to_L_list)
{
*position_V_to_L_list = (EvasIntlStrIndex *)malloc(sizeof(EvasIntlStrIndex) * len);
if (!*position_V_to_L_list)
{
len = -1;
goto error5;
}
tmp_V_to_L_list = *position_V_to_L_list;
}
#ifdef ARABIC_SUPPORT
/* fix arabic context */
evas_intl_arabic_to_context(unicode_in);
#endif
if (!fribidi_log2vis(unicode_in, len, direction,
unicode_out, NULL, NULL, *embedding_level_list))
unicode_out, tmp_L_to_V_list, tmp_V_to_L_list, tmp_level_list))
{
len = -4;
goto error3;
len = -2;
goto error5;
}
text_out = malloc(UTF8_BYTES_PER_CHAR * len + 1);
if (!text_out)
{
len = -5;
goto error4;
len = -1;
goto error6;
}
fribidi_unicode_to_utf8(unicode_out, len, text_out);
@ -88,10 +109,17 @@ evas_intl_utf8_to_visual(const char *text, int *ret_len, FriBidiCharType *direct
return text_out;
/* ERROR HANDLING */
error4:
error6:
free(unicode_out);
error5:
free(*position_V_to_L_list);
*position_V_to_L_list = NULL;
error4:
free(*position_L_to_V_list);
*position_L_to_V_list = NULL;
error3:
free(*embedding_level_list);
*embedding_level_list = NULL;
error2:
free(unicode_in);
error1:
@ -101,7 +129,7 @@ error1:
}
int
evas_intl_is_rtl_char(FriBidiLevel *embedded_level_list, FriBidiStrIndex i)
evas_intl_is_rtl_char(EvasIntlLevel *embedded_level_list, EvasIntlStrIndex i)
{
if(embedded_level_list || i < 0)
return 0;

27
legacy/evas/src/lib/engines/common/evas_intl_utils.h
View File

@ -4,25 +4,44 @@
#include "config.h"
#ifdef HAVE_FRIBIDI_FRIBIDI_H
#define USE_FRIBIDI 1
#define USE_FRIBIDI
#define INTERNATIONAL_SUPPORT
#endif
#ifdef USE_FRIBIDI
#include <fribidi/fribidi.h>
/* abstract fribidi */
typedef FriBidiChar EvasIntlChar;
typedef FriBidiCharType EvasIntlParType;
typedef FriBidiStrIndex EvasIntlStrIndex;
typedef FriBidiLevel EvasIntlLevel;
/* whether should fix arabic specifix issues */
#define ARABIC_SUPPORT 1
#define ARABIC_SUPPORT
#ifdef ARABIC_SUPPORT
#include "evas_intl/evas_intl_arabic.h"
#endif
#define evas_intl_position_logical_to_visual(list, position) \
(list) ? list[position] : position;
#define evas_intl_position_visual_to_logical(list, position) \
(list) ? list[position] : position;
int
evas_intl_is_rtl_char(FriBidiLevel *embedded_level_list, FriBidiStrIndex i);
evas_intl_is_rtl_char(EvasIntlLevel *embedded_level_list, EvasIntlStrIndex i);
char *
evas_intl_utf8_to_visual(const char *text, int *ret_len, FriBidiCharType *direction, FriBidiLevel **embedding_level_list);
evas_intl_utf8_to_visual(const char *text,
int *ret_len,
EvasIntlParType *direction,
EvasIntlStrIndex **position_L_to_V_list,
EvasIntlStrIndex **position_V_to_L_list,
EvasIntlLevel **embedding_level_list);
#endif
#endif

1
legacy/evas/src/lib/include/evas_private.h
View File

@ -684,6 +684,7 @@ struct _Evas_Func
void (*image_scale_hint_set) (void *data, void *image, int hint);
int (*image_scale_hint_get) (void *data, void *image);
int (*font_last_up_to_pos) (void *data, void *font, const char *text, int x, int y);
};
struct _Evas_Image_Load_Func

13
legacy/evas/src/modules/engines/cairo_x11/evas_engine.c
View File

@ -121,6 +121,8 @@ static int eng_font_cache_get(void *data);
static void eng_font_hinting_set(void *data, void *font, int hinting);
static int eng_font_hinting_can_hint(void *data, int hinting);
static int eng_font_last_up_to_pos(void *data __UNUSED__, void *font, const char *text, int x, int y);
typedef struct _Render_Engine Render_Engine;
struct _Render_Engine
@ -244,7 +246,9 @@ static Evas_Func eng_func =
eng_font_hinting_can_hint,
eng_image_scale_hint_set,
eng_image_scale_hint_get
eng_image_scale_hint_get,
/* more font draw functions */
eng_font_last_up_to_pos
};
static void *
@ -1478,6 +1482,12 @@ eng_font_hinting_can_hint(void *data, int hinting)
re = (Render_Engine *)data;
}
static int
eng_font_last_up_to_pos(void *data __UNUSED__, void *font, const char *text, int x, int y)
{
return evas_common_font_query_last_up_to_pos(font, text, x, y);
}
EAPI int
module_open(Evas_Module *em)
{
@ -1499,3 +1509,4 @@ EAPI Evas_Module_Api evas_modapi =
"cairo_x11",
"none"
};

11
legacy/evas/src/modules/engines/software_generic/evas_engine.c
View File

@ -917,6 +917,12 @@ eng_font_char_at_coords_get(void *data __UNUSED__, void *font, const char *text,
return evas_common_font_query_text_at_pos(font, text, x, y, cx, cy, cw, ch);
}
static int
eng_font_last_up_to_pos(void *data __UNUSED__, void *font, const char *text, int x, int y)
{
return evas_common_font_query_last_up_to_pos(font, text, x, y);
}
static void
eng_font_draw(void *data __UNUSED__, void *context, void *surface, void *font, int x, int y, int w __UNUSED__, int h __UNUSED__, int ow __UNUSED__, int oh __UNUSED__, const char *text)
{
@ -1109,8 +1115,11 @@ static Evas_Func func =
eng_font_hinting_set,
eng_font_hinting_can_hint,
eng_image_scale_hint_set,
eng_image_scale_hint_get
eng_image_scale_hint_get,
/* more font draw functions */
eng_font_last_up_to_pos
/* FUTURE software generic calls go here */
};
/*