efl/legacy/edje/src/lib/edje_text.c

704 lines
21 KiB
C

#include <string.h>
#include "edje_private.h"
/* returns with and height for this part.
*
* depending on the value of the use_alternate_font_metrics flag, it will
* either use evas_object_geometry_get() or the _advance_get() functions.
*
* The latter is useful if you want to make sure that width and height
* are the same value for the same number of characters in the text.
* This usually only makes sense for monospaced fonts.
*
* In future changes to this file, you probably should use this wrapper
* function everywhere instead of calling evas_object_geometry_get()
* directly.
*/
static inline void
part_get_geometry(Edje_Real_Part *rp, Evas_Coord *w, Evas_Coord *h)
{
if (!rp->part->use_alternate_font_metrics)
evas_object_geometry_get(rp->object, NULL, NULL, w, h);
else
{
if (w) *w = evas_object_text_horiz_advance_get(rp->object);
if (h) *h = evas_object_text_vert_advance_get(rp->object);
}
}
void
_edje_text_init(void)
{
}
void
_edje_text_part_on_add(Edje *ed, Edje_Real_Part *ep)
{
Edje_Part *pt = ep->part;
Edje_Part_Description_Text *desc;
unsigned int i;
if (ep->part->type != EDJE_PART_TYPE_TEXT) return;
/* if text class exists for this part, add the edje to the tc member list */
desc = (Edje_Part_Description_Text *) pt->default_desc;
if ((pt->default_desc) && (desc->text.text_class))
_edje_text_class_member_add(ed, desc->text.text_class);
/* If any other classes exist add them */
for (i = 0; i < pt->other.desc_count; ++i)
{
desc = (Edje_Part_Description_Text *) pt->other.desc[i];
if ((desc) && (desc->text.text_class))
_edje_text_class_member_add(ed, desc->text.text_class);
}
}
void
_edje_text_part_on_del(Edje *ed, Edje_Part *pt)
{
Edje_Part_Description_Text *desc;
unsigned int i;
if (pt->type != EDJE_PART_TYPE_TEXT
&& pt->type != EDJE_PART_TYPE_TEXTBLOCK)
return ;
desc = (Edje_Part_Description_Text *) pt->default_desc;
if ((pt->default_desc) && (desc->text.text_class))
_edje_text_class_member_del(ed, desc->text.text_class);
for (i = 0; i < pt->other.desc_count; ++i)
{
desc = (Edje_Part_Description_Text *) pt->other.desc[i];
if (desc->text.text_class)
_edje_text_class_member_del(ed, desc->text.text_class);
}
}
static void
_edje_text_fit_set(char *buf, const char *text, int c1, int c2)
{
/* helper function called from _edje_text_fit_x().
* note that we can use strcpy()/strcat() safely, the buffer lengths
* are checked in the caller.
*/
if (c1 >= 0)
{
strcpy(buf, "...");
if (c2 >= 0)
{
strncat(buf, text + c1, c2 - c1);
strcat(buf, "...");
}
else
strcat(buf, text + c1);
}
else
{
if (c2 >= 0)
{
strncpy(buf, text, c2);
buf[c2] = 0;
strcat(buf, "...");
}
else
strcpy(buf, text);
}
}
static const char *
_edje_text_fit_x(Edje *ed, Edje_Real_Part *ep,
Edje_Calc_Params *params,
const char *text, const char *font, int size,
Evas_Coord sw, int *free_text)
{
Evas_Coord tw = 0, th = 0, p;
int l, r;
char *buf;
int c1 = -1, c2 = -1, loop = 0, extra;
size_t orig_len;
FLOAT_T sc;
sc = ed->scale;
if (sc == ZERO) sc = _edje_scale;
*free_text = 0;
if (sw <= 1) return "";
if (ep->part->scale) evas_object_scale_set(ep->object, TO_DOUBLE(sc));
evas_object_text_font_set(ep->object, font, size);
evas_object_text_text_set(ep->object, text);
part_get_geometry(ep, &tw, &th);
evas_object_text_style_pad_get(ep->object, &l, &r, NULL, NULL);
p = ((sw - tw) * params->type.text.elipsis);
/* chop chop */
if (tw > sw)
{
if (params->type.text.elipsis != 0.0)
/* 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->type.text.elipsis != 1.0)
/* 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;
c2 = 0;
}
}
if (!(((c1 >= 0) || (c2 >= 0)) && (tw > sw)))
return text;
if ((c1 == 0) && (c2 == 0))
return text;
orig_len = strlen(text);
/* don't overflow orig_len by adding extra
* FIXME: we might want to set a max string length somewhere...
*/
extra = 1 + 3 + 3; /* terminator, leading and trailing ellipsis */
orig_len = MIN(orig_len, ((size_t) 8192 - extra));
if (!(buf = malloc(orig_len + extra)))
return text;
while (((c1 >= 0) || (c2 >= 0)) && (tw > sw))
{
loop++;
if (sw <= 0.0)
{
buf[0] = 0;
break;
}
if ((c1 >= 0) && (c2 >= 0))
{
if ((loop & 0x1))
{
if (c1 >= 0)
c1 = evas_string_char_next_get(text, c1, NULL);
}
else
{
if (c2 >= 0)
{
c2 = evas_string_char_prev_get(text, c2, NULL);
if (c2 < 0)
{
buf[0] = 0;
break;
}
}
}
}
else
{
if (c1 >= 0)
c1 = evas_string_char_next_get(text, c1, NULL);
else if (c2 >= 0)
{
c2 = evas_string_char_prev_get(text, c2, NULL);
if (c2 < 0)
{
buf[0] = 0;
break;
}
}
}
if ((c1 >= 0) && (c2 >= 0))
{
if (c1 >= c2)
{
buf[0] = 0;
break;
}
}
else if ((c1 > 0 && (size_t) c1 >= orig_len) || c2 == 0)
{
buf[0] = 0;
break;
}
buf[0] = 0;
_edje_text_fit_set(buf, text, c1, c2);
evas_object_text_text_set(ep->object, buf);
part_get_geometry(ep, &tw, &th);
}
*free_text = 1;
return buf;
}
static const char *
_edje_text_font_get(const char *base, const char *new, char **free_later)
{
const char *base_style, *new_style, *aux;
int font_len, style_len;
if (base && (!new))
return base;
else if (!base)
return new;
base_style = strstr(base, ":style=");
if (!base_style)
return new;
new_style = strstr(new, ":style=");
if (new_style)
return new;
font_len = strlen(new);
aux = strchr(base_style, ',');
style_len = (aux) ? (aux - base_style) : (int) strlen(base_style);
*free_later = malloc(font_len + style_len + 1);
memcpy(*free_later, new, font_len);
memcpy(*free_later + font_len, base_style, style_len);
(*free_later)[font_len + style_len] = '\0';
return *free_later;
}
const char *
_edje_text_class_font_get(Edje *ed, Edje_Part_Description_Text *chosen_desc, int *size, char **free_later)
{
Edje_Text_Class *tc;
const char *text_class_name, *font;
font = edje_string_get(&chosen_desc->text.font);
*size = chosen_desc->text.size;
text_class_name = chosen_desc->text.text_class;
if ((!text_class_name) || (!text_class_name[0]))
return font;
tc = _edje_text_class_find(ed, text_class_name);
if (!tc)
return font;
font = _edje_text_font_get(edje_string_get(&chosen_desc->text.font), tc->font, free_later);
*size = _edje_text_size_calc(*size, tc);
return font;
}
void
_edje_text_recalc_apply(Edje *ed, Edje_Real_Part *ep,
Edje_Calc_Params *params,
Edje_Part_Description_Text *chosen_desc)
{
const char *text;
const char *font;
char *font2 = NULL;
char *sfont = NULL;
int size;
Evas_Coord tw, th;
Evas_Coord sw, sh;
int inlined_font = 0, free_text = 0;
FLOAT_T sc;
sc = ed->scale;
if (sc == 0.0) sc = _edje_scale;
text = edje_string_get(&chosen_desc->text.text);
font = _edje_text_class_font_get(ed, chosen_desc, &size, &sfont);
if (ep->text.text) text = (char *) ep->text.text;
if (ep->text.font) font = ep->text.font;
if (ep->text.size > 0) size = ep->text.size;
if (ep->text.text_source)
{
text = edje_string_get(&(((Edje_Part_Description_Text *)ep->text.text_source->chosen_description)->text.text));
if (ep->text.text_source->text.text) text = ep->text.text_source->text.text;
}
if (ep->text.source)
{
font = edje_string_get(&(((Edje_Part_Description_Text *)ep->text.source->chosen_description)->text.font));
size = ((Edje_Part_Description_Text *)ep->text.source->chosen_description)->text.size;
if (ep->text.source->text.font) font = ep->text.source->text.font;
if (ep->text.source->text.size > 0) size = ep->text.source->text.size;
}
if (!text) text = "";
if (!font) font = "";
/* check if the font is embedded in the .eet */
if (ed->file->fonts)
{
Edje_Font_Directory_Entry *fnt = eina_hash_find(ed->file->fonts, font);
if (fnt)
{
int len = strlen(fnt->entry) + sizeof("edje/fonts/") + 1;
font = alloca(len);
sprintf((char *)font, "edje/fonts/%s", fnt->entry);
inlined_font = 1;
}
}
if ((_edje_fontset_append) && (font))
{
font2 = malloc(strlen(font) + 1 + strlen(_edje_fontset_append) + 1);
if (font2)
{
strcpy(font2, font);
strcat(font2, ",");
strcat(font2, _edje_fontset_append);
font = font2;
}
}
{
int l, r, t, b;
evas_object_text_style_pad_get(ep->object, &l, &r, &t, &b);
sw = params->w;
sh = params->h;
}
size = params->type.text.size;
if ((ep->text.cache.in_size == size) &&
(ep->text.cache.in_w == sw) &&
(ep->text.cache.in_h == sh) &&
(ep->text.cache.in_str) &&
(text) &&
(!strcmp(ep->text.cache.in_str, text)) &&
(ep->text.cache.align_x == params->type.text.align.x) &&
(ep->text.cache.align_y == params->type.text.align.y) &&
(ep->text.cache.elipsis == params->type.text.elipsis) &&
(ep->text.cache.fit_x == chosen_desc->text.fit_x) &&
(ep->text.cache.fit_y == chosen_desc->text.fit_y))
{
text = (char *)ep->text.cache.out_str;
size = ep->text.cache.out_size;
if (!text) text = "";
goto arrange_text;
}
if (ep->text.cache.in_str) eina_stringshare_del(ep->text.cache.in_str);
ep->text.cache.in_str = eina_stringshare_add(text);
ep->text.cache.in_size = size;
if (chosen_desc->text.fit_x && (ep->text.cache.in_str && eina_stringshare_strlen(ep->text.cache.in_str) > 0))
{
if (inlined_font) evas_object_text_font_source_set(ep->object, ed->path);
else evas_object_text_font_source_set(ep->object, NULL);
if (ep->part->scale) evas_object_scale_set(ep->object, TO_DOUBLE(sc));
evas_object_text_font_set(ep->object, font, size);
evas_object_text_text_set(ep->object, text);
part_get_geometry(ep, &tw, &th);
if (tw > sw)
{
while ((tw > sw) && (size > 0) && (tw != 0))
{
int psize = size;
size = (size * sw) / tw;
if ((psize - size) <= 0) size = psize - 1;
if (inlined_font) evas_object_text_font_source_set(ep->object, ed->path);
else evas_object_text_font_source_set(ep->object, NULL);
if (ep->part->scale) evas_object_scale_set(ep->object, TO_DOUBLE(sc));
evas_object_text_font_set(ep->object, font, size);
part_get_geometry(ep, &tw, &th);
if ((size > 0) && (tw == 0)) break;
}
}
else if (tw < sw)
{
while ((tw < sw) && (size > 0) && (tw != 0))
{
int psize = size;
size = (size * sw) / tw;
/* fprintf(stderr, "size = %i (%i, %i)\n", size, sw, tw); */
if ((psize - size) >= 0) size = psize + 1;
if (inlined_font) evas_object_text_font_source_set(ep->object, ed->path);
else evas_object_text_font_source_set(ep->object, NULL);
if (ep->part->scale) evas_object_scale_set(ep->object, TO_DOUBLE(sc));
evas_object_text_font_set(ep->object, font, size);
part_get_geometry(ep, &tw, &th);
if ((size > 0) && (tw == 0)) break;
}
}
}
if (chosen_desc->text.fit_y && (ep->text.cache.in_str && eina_stringshare_strlen(ep->text.cache.in_str) > 0))
{
/* if we fit in the x axis, too, size already has a somewhat
* meaningful value, so don't overwrite it with the starting
* value in that case
*/
if (!chosen_desc->text.fit_x) size = sh;
if (inlined_font) evas_object_text_font_source_set(ep->object, ed->path);
else evas_object_text_font_source_set(ep->object, NULL);
if (ep->part->scale) evas_object_scale_set(ep->object, TO_DOUBLE(sc));
evas_object_text_font_set(ep->object, font, size);
evas_object_text_text_set(ep->object, text);
part_get_geometry(ep, &tw, &th);
/* only grow the font size if we didn't already reach the max size
* for the x axis
*/
if (!chosen_desc->text.fit_x && th < sh)
{
int dif;
dif = (th - sh) / 4;
if (dif < 1) dif = 1;
while ((th < sh) && (sw > 0))
{
size += dif;
if (size <= 0) break;
if (inlined_font) evas_object_text_font_source_set(ep->object, ed->path);
else evas_object_text_font_source_set(ep->object, NULL);
if (ep->part->scale) evas_object_scale_set(ep->object, TO_DOUBLE(sc));
evas_object_text_font_set(ep->object, font, size);
part_get_geometry(ep, &tw, &th);
if ((size > 0) && (th == 0)) break;
}
size -= dif;
}
else if (th > sh)
{
int current;
if (ep->part->scale) evas_object_scale_set(ep->object, TO_DOUBLE(sc));
evas_object_text_font_set(ep->object, font, 10);
part_get_geometry(ep, &tw, &th);
if (th == sh)
current = 10;
else
{
int bottom, top;
if (th < sh) bottom = 10;
else if (th > sh) bottom = 1;
else bottom = 0; /* XXX shut up GCC, th == sh is handled before! */
top = size;
/* search one that fits (binary search) */
do
{
current = (top + bottom) / 2;
if (ep->part->scale) evas_object_scale_set(ep->object, TO_DOUBLE(sc));
evas_object_text_font_set(ep->object, font, current);
part_get_geometry(ep, &tw, &th);
if (th < sh) bottom = current + 1;
else if (th > sh) top = current - 1;
} while ((bottom < top) && (th != sh));
}
/* search the larger one that fits (linear search) */
do
{
current++;
if (ep->part->scale) evas_object_scale_set(ep->object, TO_DOUBLE(sc));
evas_object_text_font_set(ep->object, font, current);
part_get_geometry(ep, &tw, &th);
} while (th <= sh);
size = current - 1;
}
}
if (size < 1) size = 1;
if (!chosen_desc->text.fit_x)
{
if (inlined_font) evas_object_text_font_source_set(ep->object, ed->path);
else evas_object_text_font_source_set(ep->object, NULL);
text = _edje_text_fit_x(ed, ep, params, text, font, size, sw, &free_text);
}
if (ep->text.cache.out_str) eina_stringshare_del(ep->text.cache.out_str);
ep->text.cache.out_str = eina_stringshare_add(text);
ep->text.cache.in_w = sw;
ep->text.cache.in_h = sh;
ep->text.cache.out_size = size;
ep->text.cache.align_x = params->type.text.align.x;
ep->text.cache.align_y = params->type.text.align.y;
ep->text.cache.elipsis = params->type.text.elipsis;
ep->text.cache.fit_x = chosen_desc->text.fit_x;
ep->text.cache.fit_y = chosen_desc->text.fit_y;
arrange_text:
if (inlined_font) evas_object_text_font_source_set(ep->object, ed->path);
else evas_object_text_font_source_set(ep->object, NULL);
if (ep->part->scale) evas_object_scale_set(ep->object, TO_DOUBLE(sc));
evas_object_text_font_set(ep->object, font, size);
evas_object_text_text_set(ep->object, text);
part_get_geometry(ep, &tw, &th);
ep->text.offset.x = TO_INT(SCALE(params->type.text.align.x, (sw - tw)));
ep->text.offset.y = TO_INT(SCALE(params->type.text.align.y, (sh - th)));
evas_object_move(ep->object,
ed->x + params->x + ep->text.offset.x,
ed->y + params->y + ep->text.offset.y);
if (params->visible) evas_object_show(ep->object);
else evas_object_hide(ep->object);
{
Evas_Text_Style_Type style;
style = EVAS_TEXT_STYLE_PLAIN;
evas_object_color_set(ep->object,
(params->color.r * params->color.a) / 255,
(params->color.g * params->color.a) / 255,
(params->color.b * params->color.a) / 255,
params->color.a);
if ((ep->part->effect == EDJE_TEXT_EFFECT_NONE) ||
(ep->part->effect == EDJE_TEXT_EFFECT_PLAIN))
{
style = EVAS_TEXT_STYLE_PLAIN;
}
else if (ep->part->effect == EDJE_TEXT_EFFECT_OUTLINE)
{
style = EVAS_TEXT_STYLE_OUTLINE;
evas_object_text_outline_color_set(ep->object,
(params->type.text.color2.r * params->type.text.color2.a) / 255,
(params->type.text.color2.g * params->type.text.color2.a) / 255,
(params->type.text.color2.b * params->type.text.color2.a) / 255,
params->type.text.color2.a);
}
else if (ep->part->effect == EDJE_TEXT_EFFECT_SOFT_OUTLINE)
{
style = EVAS_TEXT_STYLE_SOFT_OUTLINE;
evas_object_text_outline_color_set(ep->object,
(params->type.text.color2.r * params->type.text.color2.a) / 255,
(params->type.text.color2.g * params->type.text.color2.a) / 255,
(params->type.text.color2.b * params->type.text.color2.a) / 255,
params->type.text.color2.a);
}
else if (ep->part->effect == EDJE_TEXT_EFFECT_SHADOW)
{
style = EVAS_TEXT_STYLE_SHADOW;
evas_object_text_shadow_color_set(ep->object,
(params->type.text.color3.r * params->type.text.color3.a) / 255,
(params->type.text.color3.g * params->type.text.color3.a) / 255,
(params->type.text.color3.b * params->type.text.color3.a) / 255,
params->type.text.color3.a);
}
else if (ep->part->effect == EDJE_TEXT_EFFECT_SOFT_SHADOW)
{
style = EVAS_TEXT_STYLE_SOFT_SHADOW;
evas_object_text_shadow_color_set(ep->object,
(params->type.text.color3.r * params->type.text.color3.a) / 255,
(params->type.text.color3.g * params->type.text.color3.a) / 255,
(params->type.text.color3.b * params->type.text.color3.a) / 255,
params->type.text.color3.a);
}
else if (ep->part->effect == EDJE_TEXT_EFFECT_OUTLINE_SHADOW)
{
style = EVAS_TEXT_STYLE_OUTLINE_SHADOW;
evas_object_text_outline_color_set(ep->object,
(params->type.text.color2.r * params->type.text.color2.a) / 255,
(params->type.text.color2.g * params->type.text.color2.a) / 255,
(params->type.text.color2.b * params->type.text.color2.a) / 255,
params->type.text.color2.a);
evas_object_text_shadow_color_set(ep->object,
(params->type.text.color3.r * params->type.text.color3.a) / 255,
(params->type.text.color3.g * params->type.text.color3.a) / 255,
(params->type.text.color3.b * params->type.text.color3.a) / 255,
params->type.text.color3.a);
}
else if (ep->part->effect == EDJE_TEXT_EFFECT_OUTLINE_SOFT_SHADOW)
{
style = EVAS_TEXT_STYLE_OUTLINE_SOFT_SHADOW;
evas_object_text_outline_color_set(ep->object,
(params->type.text.color2.r * params->type.text.color2.a) / 255,
(params->type.text.color2.g * params->type.text.color2.a) / 255,
(params->type.text.color2.b * params->type.text.color2.a) / 255,
params->type.text.color2.a);
evas_object_text_shadow_color_set(ep->object,
(params->type.text.color3.r * params->type.text.color3.a) / 255,
(params->type.text.color3.g * params->type.text.color3.a) / 255,
(params->type.text.color3.b * params->type.text.color3.a) / 255,
params->type.text.color3.a);
}
else if (ep->part->effect == EDJE_TEXT_EFFECT_FAR_SHADOW)
{
style = EVAS_TEXT_STYLE_FAR_SHADOW;
evas_object_text_shadow_color_set(ep->object,
(params->type.text.color3.r * params->type.text.color3.a) / 255,
(params->type.text.color3.g * params->type.text.color3.a) / 255,
(params->type.text.color3.b * params->type.text.color3.a) / 255,
params->type.text.color3.a);
}
else if (ep->part->effect == EDJE_TEXT_EFFECT_FAR_SOFT_SHADOW)
{
style = EVAS_TEXT_STYLE_FAR_SOFT_SHADOW;
evas_object_text_shadow_color_set(ep->object,
(params->type.text.color3.r * params->type.text.color3.a) / 255,
(params->type.text.color3.g * params->type.text.color3.a) / 255,
(params->type.text.color3.b * params->type.text.color3.a) / 255,
params->type.text.color3.a);
}
else if (ep->part->effect == EDJE_TEXT_EFFECT_GLOW)
{
style = EVAS_TEXT_STYLE_GLOW;
evas_object_text_glow_color_set(ep->object,
(params->type.text.color2.r * params->type.text.color2.a) / 255,
(params->type.text.color2.g * params->type.text.color2.a) / 255,
(params->type.text.color2.b * params->type.text.color2.a) / 255,
params->type.text.color2.a);
evas_object_text_glow2_color_set(ep->object,
(params->type.text.color3.r * params->type.text.color3.a) / 255,
(params->type.text.color3.g * params->type.text.color3.a) / 255,
(params->type.text.color3.b * params->type.text.color3.a) / 255,
params->type.text.color3.a);
}
evas_object_text_style_set(ep->object, style);
}
if (free_text)
free((char *)text);
if (font2)
free(font2);
if (sfont)
free(sfont);
}
Evas_Font_Size
_edje_text_size_calc(Evas_Font_Size size, Edje_Text_Class *tc)
{
int val;
if (tc->size == 0)
{
val = size;
}
else if (tc->size > 0.0)
{
val = tc->size;
}
else
{
val = (size * -tc->size) / 100;
}
return val;
}