efl/legacy/elementary/src/lib/elm_label.c

#include <Elementary.h>
#include "elm_priv.h"

/**
 * @defgroup Label Label
 *
 * Display text, with simple html-like markup. The theme of course
 * can invent new markup tags and style them any way it likes
 */

typedef struct _Widget_Data Widget_Data;

struct _Widget_Data
{
   Evas_Object *lbl;
   Evas_Object *bg;
   const char *label;
   Ecore_Job *deferred_recalc_job;
   double slide_duration;
   Evas_Coord lastw;
   Evas_Coord wrap_w;
   Evas_Coord wrap_h;
   Eina_Bool linewrap : 1;
   Eina_Bool changed : 1;
   Eina_Bool bgcolor : 1;
   Eina_Bool ellipsis : 1;
   Eina_Bool slidingmode : 1;
   Eina_Bool slidingellipsis : 1;
};

static const char *widtype = NULL;
static void _del_hook(Evas_Object *obj);
static void _mirrored_set(Evas_Object *obj, Eina_Bool rtl);
static void _theme_hook(Evas_Object *obj);
static void _sizing_eval(Evas_Object *obj);
static int _get_value_in_key_string(const char *oldstring, const char *key, char **value);
static int _strbuf_key_value_replace(Eina_Strbuf *srcbuf, const char *key, const char *value, int deleteflag);
static int _stringshare_key_value_replace(const char **srcstring, const char *key, const char *value, int deleteflag);
static int _is_width_over(Evas_Object *obj, Eina_Bool multiline);
static void _ellipsis_label_to_width(Evas_Object *obj, Eina_Bool multiline);
static void _label_sliding_change(Evas_Object *obj);

static void
_elm_win_recalc_job(void *data)
{
   Widget_Data *wd = elm_widget_data_get(data);
   Evas_Coord minw = -1, minh = -1, maxh = -1;
   Evas_Coord resw, resh, minminw;
   if (!wd) return;
   wd->deferred_recalc_job = NULL;
   evas_object_geometry_get(wd->lbl, NULL, NULL, &resw, &resh);
   resh = 0;
   edje_object_size_min_restricted_calc(wd->lbl, &minw, &minh, 0, 0);
   minminw = minw;
   if (wd->wrap_w >= resw)
     {
        resw = wd->wrap_w;
        edje_object_size_min_restricted_calc(wd->lbl, &minw, &minh, resw, 0);
        evas_object_size_hint_min_set(data, minw, minh);
     }
   else
     {
        if (wd->wrap_w > minminw) minminw = wd->wrap_w;
        edje_object_size_min_restricted_calc(wd->lbl, &minw, &minh, resw, 0);
        evas_object_size_hint_min_set(data, minminw, minh);
     }

   if ((wd->ellipsis) && (wd->linewrap) && (wd->wrap_h > 0) &&
       (_is_width_over(data, 1) == 1))
     _ellipsis_label_to_width(data, 1);

   maxh = minh;
   evas_object_size_hint_max_set(data, -1, maxh);
}

static void
_del_hook(Evas_Object *obj)
{
   Widget_Data *wd = elm_widget_data_get(obj);
   if (!wd) return;
   if (wd->deferred_recalc_job) ecore_job_del(wd->deferred_recalc_job);
   if (wd->label) eina_stringshare_del(wd->label);
   if (wd->bg) evas_object_del(wd->bg);
   free(wd);
}

static void
_theme_change(Evas_Object *obj)
{
   Widget_Data *wd = elm_widget_data_get(obj);
   if (!wd) return;

   if (wd->linewrap)
     {
        if (wd->ellipsis)
          _elm_theme_object_set(obj, wd->lbl, "label", "base_wrap_ellipsis",
                                elm_widget_style_get(obj));
        else
          _elm_theme_object_set(obj, wd->lbl, "label", "base_wrap",
                                elm_widget_style_get(obj));
     }
   else
     _elm_theme_object_set(obj, wd->lbl, "label", "base",
                           elm_widget_style_get(obj));
}

static void
_mirrored_set(Evas_Object *obj, Eina_Bool rtl)
{
   Widget_Data *wd = elm_widget_data_get(obj);
   if (!wd) return;
   edje_object_mirrored_set(wd->lbl, rtl);
}

static void
_theme_hook(Evas_Object *obj)
{
   Widget_Data *wd = elm_widget_data_get(obj);
   if (!wd) return;
   _elm_widget_mirrored_reload(obj);
   _mirrored_set(obj, elm_widget_mirrored_get(obj));
   _theme_change(obj);
   edje_object_part_text_set(wd->lbl, "elm.text", wd->label);
   edje_object_scale_set(wd->lbl, elm_widget_scale_get(obj) *
                         _elm_config->scale);
   _label_sliding_change(obj);
   _sizing_eval(obj);
}

static void
_sizing_eval(Evas_Object *obj)
{
   Widget_Data *wd = elm_widget_data_get(obj);
   Evas_Coord minw = -1, minh = -1, maxw = -1, maxh = -1;
   Evas_Coord resw, resh;
   if (!wd) return;
   if (wd->linewrap)
     {
        evas_object_geometry_get(wd->lbl, NULL, NULL, &resw, &resh);
        if ((resw == wd->lastw) && (!wd->changed)) return;
        wd->changed = EINA_FALSE;
        wd->lastw = resw;
        _elm_win_recalc_job(obj);
        // FIXME: works ok. but NOT for genlist. what should genlist do?
        //        if (wd->deferred_recalc_job) ecore_job_del(wd->deferred_recalc_job);
        //        wd->deferred_recalc_job = ecore_job_add(_elm_win_recalc_job, obj);
     }
   else
     {
        evas_object_geometry_get(wd->lbl, NULL, NULL, &resw, &resh);
        edje_object_size_min_calc(wd->lbl, &minw, &minh);
        if (wd->wrap_w > 0 && minw > wd->wrap_w) minw = wd->wrap_w;
        evas_object_size_hint_min_set(obj, minw, minh);
        maxh = minh;
        evas_object_size_hint_max_set(obj, maxw, maxh);
        if ((wd->ellipsis) && (_is_width_over(obj, 0) == 1))
          _ellipsis_label_to_width(obj, 0);
     }
}

static void
_resize(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
{
   Widget_Data *wd = elm_widget_data_get(data);
   if (!wd) return;
   if (wd->linewrap) _sizing_eval(data);
}

static int
_get_value_in_key_string(const char *oldstring, const char *key, char **value)
{
   char *curlocater, *starttag, *endtag;
   int firstindex = 0, foundflag = -1;

   curlocater = strstr(oldstring, key);
   if (curlocater)
     {
        int key_len = strlen(key);
        starttag = curlocater;
        endtag = curlocater + key_len;
        if ((!endtag) || (*endtag != '='))
          {
             foundflag = 0;
             return -1;
          }
        firstindex = abs(oldstring - curlocater);
        firstindex += key_len + 1; // strlen("key") + strlen("=")
        *value = (char *)oldstring + firstindex;

        while (oldstring != starttag)
          {
             if (*starttag == '>')
               {
                  foundflag = 0;
                  break;
               }
             if (*starttag == '<')
               break;
             else
               starttag--;
             if (!starttag) break;
          }

        while (endtag)
          {
             if (*endtag == '<')
               {
                  foundflag = 0;
                  break;
               }
             if (*endtag == '>')
               break;
             else
               endtag++;
             if (!endtag) break;
          }

        if ((foundflag) && (*starttag == '<') && (*endtag == '>'))
          foundflag = 1;
        else
          foundflag = 0;
     }
   else
     {
        foundflag = 0;
     }

   if (foundflag == 1) return 0;

   return -1;
}


static int
_strbuf_key_value_replace(Eina_Strbuf *srcbuf, const char *key, const char *value, int deleteflag)
{
   const char *srcstring = NULL;
   Eina_Strbuf *repbuf = NULL, *diffbuf = NULL;
   char *curlocater, *replocater;
   char *starttag, *endtag;
   int tagtxtlen = 0, insertflag = 0;

   srcstring = eina_strbuf_string_get(srcbuf);
   curlocater = strstr(srcstring, key);

   if (!curlocater)
     insertflag = 1;
   else
     {
        int key_len = strlen(key);
        do
          {
             starttag = strchr(srcstring, '<');
             endtag = strchr(srcstring, '>');
             tagtxtlen = endtag - starttag;
             if (tagtxtlen <= 0) tagtxtlen = 0;
             if ((starttag < curlocater) && (curlocater < endtag)) break;
             if ((endtag) && ((endtag + 1)))
               srcstring = endtag + 1;
             else
               break;
          } while (strlen(srcstring) > 1);

        if ((starttag) && (endtag) && (tagtxtlen > key_len))
          {
             char *eqchar = NULL;
             repbuf = eina_strbuf_new();
             diffbuf = eina_strbuf_new();
             eina_strbuf_append_n(repbuf, starttag, tagtxtlen);
             srcstring = eina_strbuf_string_get(repbuf);
             curlocater = strstr(srcstring, key);
             // key=value
             //    ^ : move to here
             eqchar = curlocater + key_len;
             if ((curlocater) && (eqchar))
               {
                  // some case at useless many whitespaces (key  =value)
                  // find the separator(=) position
                  eqchar = strchr(curlocater + key_len, '=');
                  if (eqchar)
                    {
                       // key=value
                       //     ^ : move to here
                       replocater = eqchar + 1;
                       while ((*replocater) &&
                              (*replocater != ' ') &&
                              (*replocater != '>'))
                         replocater++;

                       if ((replocater - curlocater) > key_len)
                         eina_strbuf_append_n(diffbuf, curlocater,
                                              replocater-curlocater);
                       else
                         insertflag = 1;
                    }
                  else
                    insertflag = 1;
               }
             else
               insertflag = 1;
             eina_strbuf_reset(repbuf);
          }
        else
          insertflag = 1;
     }

   if (!repbuf) repbuf = eina_strbuf_new();
   if (!diffbuf) diffbuf = eina_strbuf_new();

   if (insertflag)
     {
        eina_strbuf_append_printf(repbuf, "<%s=%s>", key, value);
        eina_strbuf_prepend(srcbuf, eina_strbuf_string_get(repbuf));
     }
   else
     {
        if (deleteflag)
          {
             eina_strbuf_prepend(diffbuf, "<");
             eina_strbuf_append(diffbuf, ">");
             eina_strbuf_replace_first(srcbuf, eina_strbuf_string_get(diffbuf), "");
          }
        else
          {
             eina_strbuf_append_printf(repbuf, "%s=%s", key, value);
             eina_strbuf_replace_first(srcbuf, eina_strbuf_string_get(diffbuf), eina_strbuf_string_get(repbuf));
          }
     }

   if (repbuf) eina_strbuf_free(repbuf);
   if (diffbuf) eina_strbuf_free(diffbuf);

   return 0;
}

static int
_stringshare_key_value_replace(const char **srcstring, const char *key, const char *value, int deleteflag)
{
   Eina_Strbuf *sharebuf = NULL;

   sharebuf = eina_strbuf_new();
   eina_strbuf_append(sharebuf, *srcstring);
   _strbuf_key_value_replace(sharebuf, key, value, deleteflag);
   eina_stringshare_del(*srcstring);
   *srcstring = eina_stringshare_add(eina_strbuf_string_get(sharebuf));
   eina_strbuf_free(sharebuf);

   return 0;
}

static int
_is_width_over(Evas_Object *obj, Eina_Bool multiline)
{
   Evas_Coord x, y, w, h;
   Evas_Coord vx, vy, vw, vh;
   Widget_Data *wd = elm_widget_data_get(obj);
   if (!wd) return 0;
   const char *ellipsis_string = "...";
   int mincount = sizeof(ellipsis_string) - 1;
   char *plaintxt;
   int plainlen = 0;

   plaintxt = _elm_util_mkup_to_text(edje_object_part_text_get(wd->lbl, "elm.text"));
   if (plaintxt)
     {
        plainlen = strlen(plaintxt);
        free(plaintxt);
     }
   // too short to ellipsis
   if (plainlen <= mincount) return 0;

   edje_object_part_geometry_get(wd->lbl, "elm.text", &x, &y, &w, &h);
   evas_object_geometry_get(obj, &vx, &vy, &vw, &vh);

   if (!multiline) // single line
     {
        // skip if too early to check widget size
        if ((w < 0) && (h < 0)) return 0;
        // if string fits at widget
        if ((x >= 0) && (y >= 0))
          {
             if ((wd->wrap_w > 0) && (wd->wrap_w < w))
               {
                  Evas_Coord minw, minh;

                  edje_object_size_min_calc(wd->lbl, &minw, &minh);
                  if (minw < wd->wrap_w) return 0; // min insufficient
                  else return 1;
               }
             else return 0;
          }
        if ((0 < wd->wrap_w) && (w > wd->wrap_w)) return 1;
     }
   else // multiline
     {
        if (((x >= 0) || (y >= 0)) && (h > wd->wrap_h)) return 1;
     }

   return 0;
}

static void
_ellipsis_fontsize_set(Evas_Object *obj, int fontsize)
{
   Widget_Data *wd = elm_widget_data_get(obj);
   if (!wd) return;

   Eina_Strbuf *fontbuf = NULL;
   Eina_Strbuf *txtbuf = NULL;
   txtbuf = eina_strbuf_new();
   fontbuf = eina_strbuf_new();
   eina_strbuf_append(txtbuf, edje_object_part_text_get(wd->lbl, "elm.text"));
   eina_strbuf_append_printf(fontbuf, "%d", fontsize);
   _strbuf_key_value_replace(txtbuf, "font_size", eina_strbuf_string_get(fontbuf), 0);
   edje_object_part_text_set(wd->lbl, "elm.text", eina_strbuf_string_get(txtbuf));
   eina_strbuf_free(fontbuf);
   eina_strbuf_free(txtbuf);
}

static Eina_Bool
_ellipsis_cut_chars_to_widget(Evas_Object *obj)
{
   Widget_Data *wd = elm_widget_data_get(obj);
   if (!wd) return EINA_FALSE;
   const char *ellipsis_string = "...";
   int mincount = sizeof(ellipsis_string) - 1;
   Evas_Coord w, h;
   Evas_Textblock_Cursor *tc1, *tc2;
   char *cutstr, *elstr;
   int limitw = 0;
   int lencutstr = 0;
   int i = 0;

   edje_object_part_geometry_get(wd->lbl, "elm.text", NULL, NULL, &w, &h);
   if (w <= 0) return EINA_FALSE;
   tc1 = evas_object_textblock_cursor_new((Evas_Object *)edje_object_part_object_get(wd->lbl, "elm.text"));
   tc2 = evas_object_textblock_cursor_new((Evas_Object *)edje_object_part_object_get(wd->lbl, "elm.text"));

   if ((wd->wrap_w > 0) && (wd->wrap_w < w)) limitw = wd->wrap_w;
   else limitw = w;
   evas_textblock_cursor_pos_set(tc1, 0);
   evas_textblock_cursor_char_coord_set(tc2, limitw, 0);

   // if too small to cut,(is it bug? or any other reasons?)
   // then fallback to one step mode
   if (evas_textblock_cursor_pos_get(tc2) < mincount)
     {
        Evas_Coord cx, cy, cw, ch;
        int eolpos = evas_textblock_cursor_paragraph_text_length_get(tc1);

        for (i = eolpos; i > mincount; i--)
          {
             evas_textblock_cursor_pos_set(tc2, i);
             evas_textblock_cursor_char_geometry_get(tc2, &cx, &cy, &cw, &ch);
             if (cx <= limitw) break;
          }

        if (evas_textblock_cursor_pos_get(tc2) < mincount)
          {
             evas_textblock_cursor_free(tc1);
             evas_textblock_cursor_free(tc2);
             return EINA_FALSE;
          }
     }

   for (i = 0; i <= mincount; i++) evas_textblock_cursor_char_prev(tc2);
   cutstr = evas_textblock_cursor_range_text_get(tc1, tc2, EVAS_TEXTBLOCK_TEXT_PLAIN);
   if (!cutstr) return EINA_FALSE;

   lencutstr = strlen(cutstr);
   elstr = alloca(sizeof(char) * (lencutstr + mincount + 1));
   strcpy(elstr, cutstr);
   free(cutstr);
   strcat(elstr, ellipsis_string);
   edje_object_part_text_set(wd->lbl, "elm.text", elstr);

   evas_textblock_cursor_free(tc1);
   evas_textblock_cursor_free(tc2);

   return EINA_TRUE;
}

static Eina_Bool
_ellipsis_cut_lines_to_widget(Evas_Object *obj)
{
   Widget_Data *wd = elm_widget_data_get(obj);
   if (!wd) return EINA_FALSE;
   const char *ellipsis_string = "...";
   int mincount = sizeof(ellipsis_string) - 1;
   Evas_Coord w, h;
   Evas_Textblock_Cursor *tc1, *tc2;
   int linenum = 0, cutline = 0;
   double lineheight = 0.0;
   char *cutstr, *elstr;
   int lencutstr = 0;
   int limith = 0;
   int i;

   edje_object_part_geometry_get(wd->lbl, "elm.text", NULL, NULL, &w, &h);

   tc1 = evas_object_textblock_cursor_new((Evas_Object *)edje_object_part_object_get(wd->lbl, "elm.text"));
   tc2 = evas_object_textblock_cursor_new((Evas_Object *)edje_object_part_object_get(wd->lbl, "elm.text"));
   // goto last paragraph
   while (evas_textblock_cursor_paragraph_next(tc2) == EINA_TRUE);

   evas_textblock_cursor_paragraph_last(tc2);
   // get total linenumber
   linenum = evas_textblock_cursor_line_geometry_get(tc2, NULL, NULL, NULL, NULL);
   lineheight = (double)h / (double)linenum;
   if ((wd->wrap_h > 0) && (wd->wrap_h < h)) limith = wd->wrap_h;
   else limith = h;
   cutline = limith / lineheight;
   if (cutline < 1) cutline = 1;

   evas_textblock_cursor_pos_set(tc1, 0);
   evas_textblock_cursor_line_set(tc2, cutline - 1);
   evas_textblock_cursor_line_char_last(tc2);
   for (i = 0; i <= mincount; i++) evas_textblock_cursor_char_prev(tc2);
   cutstr = evas_textblock_cursor_range_text_get(tc1, tc2, EVAS_TEXTBLOCK_TEXT_PLAIN);
   if (!cutstr) return EINA_FALSE;

   lencutstr = strlen(cutstr);
   elstr = alloca(sizeof(char) * (lencutstr + mincount + 1));
   strcpy(elstr, cutstr);
   free(cutstr);
   strcat(elstr, ellipsis_string);
   edje_object_part_text_set(wd->lbl, "elm.text", elstr);

   evas_textblock_cursor_free(tc1);
   evas_textblock_cursor_free(tc2);

   return EINA_TRUE;
}

static void
_ellipsis_label_to_width(Evas_Object *obj, Eina_Bool multiline)
{
   Widget_Data *wd = elm_widget_data_get(obj);
   if (!wd) return;
   int cur_fontsize = 0;
   char *kvalue;
   const char *minfont, *deffont, *maxfont;
   int minfontsize, maxfontsize;

   minfont = edje_object_data_get(wd->lbl, "min_font_size");
   if (minfont) minfontsize = atoi(minfont);
   else minfontsize = 1;
   maxfont = edje_object_data_get(wd->lbl, "max_font_size");
   if (maxfont) maxfontsize = atoi(maxfont);
   else maxfontsize = 1;
   deffont = edje_object_data_get(wd->lbl, "default_font_size");
   if (deffont) cur_fontsize = atoi(deffont);
   else cur_fontsize = 1;
   if (minfontsize > maxfontsize || cur_fontsize == 1) return;  // theme is not ready for ellipsis
   if (eina_stringshare_strlen(wd->label) <= 0) return;

   if (_get_value_in_key_string(wd->label, "font_size", &kvalue) == 0)
     {
        if (kvalue != NULL) cur_fontsize = atoi(kvalue);
     }

   while (_is_width_over(obj, multiline))
     {
        if (cur_fontsize > minfontsize)
          {
             cur_fontsize -= 3;
             if (cur_fontsize < minfontsize) cur_fontsize = minfontsize;
             _ellipsis_fontsize_set(obj, cur_fontsize);
          }
        else
          {
             if (!multiline) // single line
               {
                  _ellipsis_cut_chars_to_widget(obj);
                  break;
               }
             else // multiline
               {
                  _ellipsis_cut_lines_to_widget(obj);
                  break;
               }
          }
     }
}

static void
_label_sliding_change(Evas_Object *obj)
{
   Widget_Data *wd = elm_widget_data_get(obj);
   if (!wd) return;
   char *plaintxt;
   int plainlen = 0;

   // dosen't support multiline sliding effect
   if (wd->linewrap)
     {
        wd->slidingmode = EINA_FALSE;
        return;
     }

   plaintxt = _elm_util_mkup_to_text(edje_object_part_text_get(wd->lbl, "elm.text"));
   if (plaintxt != NULL)
     {
        plainlen = strlen(plaintxt);
        free(plaintxt);
     }
   // too short to slide label
   if (plainlen < 1)
     {
        wd->slidingmode = EINA_TRUE;
        return;
     }

   if (wd->slidingmode)
     {
        Edje_Message_Float_Set *msg = alloca(sizeof(Edje_Message_Float_Set) + (sizeof(double)));

        if (wd->ellipsis)
          {
             wd->slidingellipsis = EINA_TRUE;
             elm_label_ellipsis_set(obj, EINA_FALSE);
          }

        msg->count = 1;
        msg->val[0] = wd->slide_duration;

        edje_object_message_send(wd->lbl, EDJE_MESSAGE_FLOAT_SET, 0, msg);
        edje_object_signal_emit(wd->lbl, "elm,state,slide,start", "elm");
     }
   else
     {
        edje_object_signal_emit(wd->lbl, "elm,state,slide,stop", "elm");
        if (wd->slidingellipsis)
          {
             wd->slidingellipsis = EINA_FALSE;
             elm_label_ellipsis_set(obj, EINA_TRUE);
          }
     }
}

/**
 * Add a new label to the parent
 *
 * @param parent The parent object
 * @return The new object or NULL if it cannot be created
 *
 * @ingroup Label
 */
EAPI Evas_Object *
elm_label_add(Evas_Object *parent)
{
   Evas_Object *obj;
   Evas *e;
   Widget_Data *wd;

   ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);

   ELM_SET_WIDTYPE(widtype, "label");
   elm_widget_type_set(obj, "label");
   elm_widget_sub_object_add(parent, obj);
   elm_widget_data_set(obj, wd);
   elm_widget_del_hook_set(obj, _del_hook);
   elm_widget_theme_hook_set(obj, _theme_hook);
   elm_widget_can_focus_set(obj, EINA_FALSE);

   wd->bgcolor = EINA_FALSE;
   wd->bg = evas_object_rectangle_add(e);
   evas_object_color_set(wd->bg, 0, 0, 0, 0);

   wd->linewrap = EINA_FALSE;
   wd->ellipsis = EINA_FALSE;
   wd->slidingmode = EINA_FALSE;
   wd->slidingellipsis = EINA_FALSE;
   wd->wrap_w = 0;
   wd->wrap_h = 0;
   wd->slide_duration = 10;

   wd->lbl = edje_object_add(e);
   _elm_theme_object_set(obj, wd->lbl, "label", "base", "default");
   wd->label = eina_stringshare_add("<br>");
   edje_object_part_text_set(wd->lbl, "elm.text", "<br>");
   elm_widget_resize_object_set(obj, wd->lbl);

   evas_object_event_callback_add(wd->lbl, EVAS_CALLBACK_RESIZE, _resize, obj);

   _mirrored_set(obj, elm_widget_mirrored_get(obj));
   wd->changed = 1;
   _sizing_eval(obj);
   return obj;
}

/**
 * Set the label on the label object
 *
 * @param obj The label object
 * @param label The label will be used on the label object
 *
 * @ingroup Label
 */
EAPI void
elm_label_label_set(Evas_Object *obj, const char *label)
{
   ELM_CHECK_WIDTYPE(obj, widtype);
   Widget_Data *wd = elm_widget_data_get(obj);
   if (!wd) return;
   if (!label) label = "";
   eina_stringshare_replace(&wd->label, label);
   edje_object_part_text_set(wd->lbl, "elm.text", label);
   wd->changed = 1;
   _sizing_eval(obj);
}

/**
 * Get the label used on the label object
 *
 * @param obj The label object
 * @return The string inside the label
 * @ingroup Label
 */
EAPI const char *
elm_label_label_get(const Evas_Object *obj)
{
   ELM_CHECK_WIDTYPE(obj, widtype) NULL;
   Widget_Data *wd = elm_widget_data_get(obj);
   if (!wd) return NULL;
   return wd->label;
}

/**
 * Set the wrapping behavior of the label
 *
 * @param obj The label object
 * @param wrap To wrap text or not
 * @ingroup Label
 */
EAPI void
elm_label_line_wrap_set(Evas_Object *obj, Eina_Bool wrap)
{
   ELM_CHECK_WIDTYPE(obj, widtype);
   Widget_Data *wd = elm_widget_data_get(obj);
   if (!wd) return;
   const char *t;
   if (wd->linewrap == wrap) return;
   wd->linewrap = wrap;
   t = eina_stringshare_add(elm_label_label_get(obj));
   _theme_change(obj);
   elm_label_label_set(obj, t);
   eina_stringshare_del(t);
   wd->changed = 1;
   _sizing_eval(obj);
}

/**
 * Get the wrapping behavior of the label
 *
 * @param obj The label object
 * @return To wrap text or not
 * @ingroup Label
 */
EAPI Eina_Bool
elm_label_line_wrap_get(const Evas_Object *obj)
{
   ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
   Widget_Data *wd = elm_widget_data_get(obj);
   if (!wd) return EINA_FALSE;
   return wd->linewrap;
}

/**
 * Set wrap width of the label
 *
 * @param obj The label object
 * @param w The wrap width in pixels at a minimum where words need to wrap
 * @ingroup Label
 */
EAPI void
elm_label_wrap_width_set(Evas_Object *obj, Evas_Coord w)
{
   ELM_CHECK_WIDTYPE(obj, widtype);
   Widget_Data *wd = elm_widget_data_get(obj);
   if (!wd) return;
   if (w < 0) w = 0;
   if (wd->wrap_w == w) return;
   if (wd->ellipsis) edje_object_part_text_set(wd->lbl, "elm.text", wd->label);
   wd->wrap_w = w;
   _sizing_eval(obj);
}

/**
 * get wrap width of the label
 *
 * @param obj The label object
 * @return The wrap width in pixels at a minimum where words need to wrap
 * @ingroup Label
 */
EAPI Evas_Coord
elm_label_wrap_width_get(const Evas_Object *obj)
{
   ELM_CHECK_WIDTYPE(obj, widtype) 0;
   Widget_Data *wd = elm_widget_data_get(obj);
   if (!wd) return 0;
   return wd->wrap_w;
}

/**
 * Set wrap height of the label
 *
 * @param obj The label object
 * @param w The wrap width in pixels at a minimum where words need to wrap
 * @ingroup Label
 */
EAPI void
elm_label_wrap_height_set(Evas_Object *obj,
                          Evas_Coord   h)
{
   ELM_CHECK_WIDTYPE(obj, widtype);
   Widget_Data *wd = elm_widget_data_get(obj);
   if (!wd) return;
   if (h < 0) h = 0;
   if (wd->wrap_h == h) return;
   if (wd->ellipsis) edje_object_part_text_set(wd->lbl, "elm.text", wd->label);
   wd->wrap_h = h;
   _sizing_eval(obj);
}

/**
 * get wrap width of the label
 *
 * @param obj The label object
 * @return The wrap height in pixels at a minimum where words need to wrap
 * @ingroup Label
 */
EAPI Evas_Coord
elm_label_wrap_height_get(const Evas_Object *obj)
{
   ELM_CHECK_WIDTYPE(obj, widtype) 0;
   Widget_Data *wd = elm_widget_data_get(obj);
   if (!wd) return 0;
   return wd->wrap_h;
}

/**
 * Set the font size on the label object.
 *
 * NEVER use this. It is for hyper-special cases only. use styles instead. e.g.
 * "big", "medium", "small" - or better name them by use:
 * "title", "footnote", "quote" etc.
 *
 * @param obj The label object
 * @param size font size
 *
 * @ingroup Label
 */
EAPI void
elm_label_fontsize_set(Evas_Object *obj, int fontsize)
{
   ELM_CHECK_WIDTYPE(obj, widtype);
   Widget_Data *wd = elm_widget_data_get(obj);
   Eina_Strbuf *fontbuf = NULL;
   int len, removeflag = 0;

   if (!wd) return;
   _elm_dangerous_call_check(__FUNCTION__);
   len = strlen(wd->label);
   if (len <= 0) return;
   fontbuf = eina_strbuf_new();
   eina_strbuf_append_printf(fontbuf, "%d", fontsize);

   if (fontsize == 0) removeflag = 1;  // remove fontsize tag

   if (_stringshare_key_value_replace(&wd->label, "font_size", eina_strbuf_string_get(fontbuf), removeflag) == 0)
     {
        edje_object_part_text_set(wd->lbl, "elm.text", wd->label);
        wd->changed = 1;
        _sizing_eval(obj);
     }
   eina_strbuf_free(fontbuf);
}

/**
 * Set the text align on the label object
 *
 * NEVER use this. It is for hyper-special cases only. use styles instead. e.g.
 * "big", "medium", "small" - or better name them by use:
 * "title", "footnote", "quote" etc.
 *
 * @param obj The label object
 * @param align align mode ("left", "center", "right")
 *
 * @ingroup Label
 */
EAPI void
elm_label_text_align_set(Evas_Object *obj, const char *alignmode)
{
   ELM_CHECK_WIDTYPE(obj, widtype);
   Widget_Data *wd = elm_widget_data_get(obj);
   int len;

   if (!wd) return;
   _elm_dangerous_call_check(__FUNCTION__);
   len = strlen(wd->label);
   if (len <= 0) return;

   if (_stringshare_key_value_replace(&wd->label, "align", alignmode, 0) == 0)
     edje_object_part_text_set(wd->lbl, "elm.text", wd->label);

   wd->changed = 1;
   _sizing_eval(obj);
}

/**
 * Set the text color on the label object
 *
 * @param obj The label object
 * @param r Red property background color of The label object
 * @param g Green property background color of The label object
 * @param b Blue property background color of The label object
 * @param a Alpha property background color of The label object
 *
 * @ingroup Label
 */
EAPI void
elm_label_text_color_set(Evas_Object *obj,
                         unsigned int r,
                         unsigned int g,
                         unsigned int b,
                         unsigned int a)
{
   ELM_CHECK_WIDTYPE(obj, widtype);
   Widget_Data *wd = elm_widget_data_get(obj);
   Eina_Strbuf *colorbuf = NULL;
   int len;

   if (!wd) return;
   _elm_dangerous_call_check(__FUNCTION__);
   len = strlen(wd->label);
   if (len <= 0) return;
   colorbuf = eina_strbuf_new();
   eina_strbuf_append_printf(colorbuf, "#%02X%02X%02X%02X", r, g, b, a);

   if (_stringshare_key_value_replace(&wd->label, "color", eina_strbuf_string_get(colorbuf), 0) == 0)
     {
        edje_object_part_text_set(wd->lbl, "elm.text", wd->label);
        wd->changed = 1;
        _sizing_eval(obj);
     }
   eina_strbuf_free(colorbuf);
}

/**
 * Set background color of the label
 *
 * NEVER use this. It is for hyper-special cases only. use styles instead. e.g.
 * "big", "medium", "small" - or better name them by use:
 * "title", "footnote", "quote" etc.
 *
 * @param obj The label object
 * @param r Red property background color of The label object
 * @param g Green property background color of The label object
 * @param b Blue property background color of The label object
 * @param a Alpha property background alpha of The label object
 *
 * @ingroup Label
 */
EAPI void
elm_label_background_color_set(Evas_Object *obj,
                               unsigned int r,
                               unsigned int g,
                               unsigned int b,
                               unsigned int a)
{
   ELM_CHECK_WIDTYPE(obj, widtype);
   Widget_Data *wd = elm_widget_data_get(obj);
   if (!wd) return;
   evas_object_color_set(wd->bg, r, g, b, a);

   if (!wd) return;
   _elm_dangerous_call_check(__FUNCTION__);
   if (wd->bgcolor == EINA_FALSE)
     {
        wd->bgcolor = 1;
        edje_object_part_swallow(wd->lbl, "label.swallow.background", wd->bg);
     }
}

/**
 * Set the ellipsis behavior of the label
 *
 * @param obj The label object
 * @param ellipsis To ellipsis text or not
 * @ingroup Label
 */
EAPI void
elm_label_ellipsis_set(Evas_Object *obj, Eina_Bool ellipsis)
{
   ELM_CHECK_WIDTYPE(obj, widtype);
   Widget_Data *wd = elm_widget_data_get(obj);
   if (!wd) return;
   if (wd->ellipsis == ellipsis) return;
   wd->ellipsis = ellipsis;
   if (wd->linewrap) _theme_change(obj);
   edje_object_part_text_set(wd->lbl, "elm.text", wd->label);
   wd->changed = 1;
   _sizing_eval(obj);
}

/**
 * Set the text slide of the label
 *
 * @param obj The label object
 * @param slide To start slide or stop
 * @ingroup Label
 */
EAPI void
elm_label_slide_set(Evas_Object *obj,
                    Eina_Bool    slide)
{
   ELM_CHECK_WIDTYPE(obj, widtype);
   Widget_Data *wd = elm_widget_data_get(obj);
   if (!wd) return;

   if (wd->slidingmode == slide) return;
   wd->slidingmode = slide;
   _label_sliding_change(obj);
   wd->changed = 1;
   _sizing_eval(obj);
}

/**
 * get the text slide mode of the label
 *
 * @param obj The label object
 * @return slide slide mode value
 * @ingroup Label
 */
EAPI Eina_Bool
elm_label_slide_get(Evas_Object *obj)
{
   ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
   Widget_Data *wd = elm_widget_data_get(obj);
   if (!wd) return EINA_FALSE;
   return wd->slidingmode;
}

/**
 * set the slide duration(speed) of the label
 *
 * @param obj The label object
 * @return The duration time in moving text from slide begin position to slide end position
 * @ingroup Label
 */
EAPI void
elm_label_slide_duration_set(Evas_Object *obj, double duration)
{
   ELM_CHECK_WIDTYPE(obj, widtype);
   Widget_Data *wd = elm_widget_data_get(obj);
   Edje_Message_Float_Set *msg = alloca(sizeof(Edje_Message_Float_Set) + (sizeof(double)));

   if (!wd) return;
   wd->slide_duration = duration;
   msg->count = 1;
   msg->val[0] = wd->slide_duration;
   edje_object_message_send(wd->lbl, EDJE_MESSAGE_FLOAT_SET, 0, msg);
}

/**
 * get the slide duration(speed) of the label
 *
 * @param obj The label object
 * @return The duration time in moving text from slide begin position to slide end position
 * @ingroup Label
 */
EAPI double
elm_label_slide_duration_get(Evas_Object *obj)
{
   ELM_CHECK_WIDTYPE(obj, widtype) 0.0;
   Widget_Data *wd = elm_widget_data_get(obj);
   if (!wd) return 0;
   return wd->slide_duration;
}