Tizen Native API  5.5
Textblock Object Functions

Functions used to create and manipulate textblock objects. Unlike Text Object Functions, these handle complex text, doing multiple styles and multiline text based on HTML-like tags. Of these extra features will be heavier on memory and processing cost.

Textblock Object Tutorial

This part explains about the textblock object's API and proper usage. The main user of the textblock object is the edje entry object in Edje, so that's a good place to learn from, but I think this document is more than enough, if it's not, please contact me and I'll update it.

Introduction

The textblock objects is, as implied, an object that can show big chunks of text. Textblock supports many features including: Text formatting, automatic and manual text alignment, embedding items (for example icons) and more. Textblock has three important parts, the text paragraphs, the format nodes and the cursors.

You can use markup to format text, for example: "<font_size=50>Big!</font_size>". You can also put more than one style directive in one tag: "<font_size=50 color=#F00>Big and Red!</font_size>". Please notice that we used "</font_size>" although the format also included color, this is because the first format determines the matching closing tag's name. You can also use anonymous tags, like: "<font_size=30>Big</>" which just pop any type of format, but it's advised to use the named alternatives instead.

Textblock Object Cursors

A textblock Cursor is data type that represents a position in a textblock. Each cursor contains information about the paragraph it points to, the position in that paragraph and the object itself. Cursors register to textblock objects upon creation, this means that once you created a cursor, it belongs to a specific obj and you can't for example copy a cursor "into" a cursor of a different object. Registered cursors also have the added benefit of updating automatically upon textblock changes, this means that if you have a cursor pointing to a specific character, it'll still point to it even after you change the whole object completely (as long as the char was not deleted), this is not possible without updating, because as mentioned, each cursor holds a character position. There are many functions that handle cursors, just check out the evas_textblock_cursor* functions. For creation and deletion of cursors check out:

See also:
evas_object_textblock_cursor_new()
evas_textblock_cursor_free()
Note:
Cursors are generally the correct way to handle text in the textblock object, and there are enough functions to do everything you need with them (no need to get big chunks of text and processing them yourself).

Textblock Object Paragraphs

The textblock object is made out of text splitted to paragraphs (delimited by the paragraph separation character). Each paragraph has many (or none) format nodes associated with it which are responsible for the formatting of that paragraph.

Textblock Object Format Nodes

As explained in Textblock Object Paragraphs each one of the format nodes is associated with a paragraph. There are two types of format nodes, visible and invisible: Visible: formats that a cursor can point to, i.e formats that occupy space, for example: newlines, tabs, items and etc. Some visible items are made of two parts, in this case, only the opening tag is visible. A closing tag (i.e a </tag> tag) should NEVER be visible. Invisible: formats that don't occupy space, for example: bold and underline. Being able to access format nodes is very important for some uses. For example, edje uses the "<a>" format to create links in the text (and pop popups above them when clicked). For the textblock object a is just a formatting instruction (how to color the text), but edje utilizes the access to the format nodes to make it do more. For more information, take a look at all the evas_textblock_node_format_* functions. The translation of "<tag>" tags to actual format is done according to the tags defined in the style, see evas_textblock_style_set

Special Formats

Textblock supports various format directives that can be used in markup. In addition to the mentioned format directives, textblock allows creating additional format directives using "tags" that can be set in the style see evas_textblock_style_set .

For more details see evas_textblock_style_page

Textblock supports the following formats:

  • font - Font description in fontconfig like format, e.g: "Sans:style=Italic:lang=hi". or "Serif:style=Bold".
  • font_weight - Overrides the weight defined in "font". E.g: "font_weight=Bold" is the same as "font=:style=Bold". Supported weights: "normal", "thin", "ultralight", "light", "book", "medium", "semibold", "bold", "ultrabold", "black", and "extrablack".
  • font_style - Overrides the style defined in "font". E.g: "font_style=Italic" is the same as "font=:style=Italic". Supported styles: "normal", "oblique", and "italic".
  • font_width - Overrides the width defined in "font". E.g: "font_width=Condensed" is the same as "font=:style=Condensed". Supported widths: "normal", "ultracondensed", "extracondensed", "condensed", "semicondensed", "semiexpanded", "expanded", "extraexpanded", and "ultraexpanded".
  • lang - Overrides the language defined in "font". E.g: "lang=he" is the same as "font=:lang=he".
  • font_fallbacks - A comma delimited list of fonts to try if finding the main font fails.
  • font_size - The font size in points.
  • font_source - The source of the font, e.g an eet file.
  • color - Text color in one of the following formats: "#RRGGBB", "#RRGGBBAA", "#RGB", and "#RGBA".
  • underline_color - color in one of the following formats: "#RRGGBB", "#RRGGBBAA", "#RGB", and "#RGBA".
  • underline2_color - color in one of the following formats: "#RRGGBB", "#RRGGBBAA", "#RGB", and "#RGBA".
  • outline_color - color in one of the following formats: "#RRGGBB", "#RRGGBBAA", "#RGB", and "#RGBA".
  • shadow_color - color in one of the following formats: "#RRGGBB", "#RRGGBBAA", "#RGB", and "#RGBA".
  • glow_color - color in one of the following formats: "#RRGGBB", "#RRGGBBAA", "#RGB", and "#RGBA".
  • glow2_color - color in one of the following formats: "#RRGGBB", "#RRGGBBAA", "#RGB", and "#RGBA".
  • strikethrough_color - color in one of the following formats: "#RRGGBB", "#RRGGBBAA", "#RGB", and "#RGBA".
  • align - Either "auto" (meaning according to text direction), "left", "right", "center", "middle", a value between 0.0 and 1.0, or a value between 0% to 100%.
  • valign - Either "top", "bottom", "middle", "center", "baseline", "base", a value between 0.0 and 1.0, or a value between 0% to 100%.
  • wrap - "word", "char", "mixed", or "none".
  • left_margin - Either "reset", or a pixel value indicating the margin.
  • right_margin - Either "reset", or a pixel value indicating the margin.
  • underline - "on", "off", "single", or "double".
  • strikethrough - "on" or "off"
  • backing_color - Background color in one of the following formats: "#RRGGBB", "#RRGGBBAA", "#RGB", and "#RGBA".
  • backing - Enable/disable background color. ex) "on" or "off"
  • style - Either "off", "none", "plain", "shadow", "outline", "soft_outline", "outline_shadow", "outline_soft_shadow", "glow", "far_shadow", "soft_shadow", or "far_soft_shadow". Direction can be selected by adding "bottom_right", "bottom", "bottom_left", "left", "top_left", "top", "top_right", or "right". E.g: "style=shadow,bottom_right".
  • tabstops - Pixel value for tab width.
  • linesize - Force a line size in pixels.
  • linerelsize - Either a floating point value or a percentage indicating the wanted size of the line relative to the calculated size.
  • linegap - Force a line gap in pixels.
  • linerelgap - Either a floating point value or a percentage indicating the wanted size of the line relative to the calculated size.
  • item - Creates an empty space that should be filled by an upper layer. Use "size", "abssize", or "relsize". To define the items size, and an optional: vsize=full/ascent to define the item's position in the line.
  • linefill - Either a float value or percentage indicating how much to fill the line.
  • ellipsis - Value between 0.0-1.0 to indicate the type of ellipsis, or -1.0 to indicate ellipsis isn't wanted.
  • password - "on" or "off". This is used to specifically turn replacing chars with the replacement char (i.e password mode) on and off.
Warning:
We don't guarantee any proper results if you create a Textblock object without setting the evas engine.

Functions

void evas_object_textblock_style_insets_get (const Efl_Canvas_Textblock *obj, int *left, int *right, int *top, int *bottom)
 Returns the currently visible range.
void evas_object_textblock_bidi_delimiters_set (Efl_Canvas_Textblock *obj, const char *delim)
 BiDi delimiters are used for in-paragraph separation of bidi segments. This is useful, for example, in the recipient fields of e-mail clients where bidi oddities can occur when mixing RTL and LTR.
const char * evas_object_textblock_bidi_delimiters_get (const Efl_Canvas_Textblock *obj)
 BiDi delimiters are used for in-paragraph separation of bidi segments. This is useful, for example, in the recipient fields of e-mail clients where bidi oddities can occur when mixing RTL and LTR.
void evas_object_textblock_legacy_newline_set (Efl_Canvas_Textblock *obj, Eina_Bool mode)
 When true, newline character will behave as a paragraph separator.
Eina_Bool evas_object_textblock_legacy_newline_get (const Efl_Canvas_Textblock *obj)
 When true, newline character will behave as a paragraph separator.
void evas_object_textblock_size_formatted_get (const Efl_Canvas_Textblock *obj, int *width, int *height)
 The formatted width and height.
void evas_object_textblock_size_native_get (const Efl_Canvas_Textblock *obj, int *width, int *height)
 The native width and height.
Eina_Bool evas_object_textblock_obstacle_add (Efl_Canvas_Textblock *obj, Efl_Canvas_Object *eo_obs)
 Add obstacle evas object eo_obs to be observed during layout of text.
Eina_Bool evas_object_textblock_obstacle_del (Efl_Canvas_Textblock *obj, Efl_Canvas_Object *eo_obs)
 Removes eo_obs from observation during text layout.
void evas_object_textblock_obstacles_update (Efl_Canvas_Textblock *obj)
 Triggers for relayout due to obstacles' state change.
const char * evas_textblock_escape_string_get (const char *escape)
const char * evas_textblock_string_escape_get (const char *string, int *len_ret)
const char * evas_textblock_escape_string_range_get (const char *escape_start, const char *escape_end)
Evas_Textblock_Styleevas_textblock_style_new (void)
void evas_textblock_style_free (Evas_Textblock_Style *ts)
void evas_textblock_style_set (Evas_Textblock_Style *ts, const char *text)
const char * evas_textblock_style_get (const Evas_Textblock_Style *ts)
const
Evas_Object_Textblock_Node_Format
evas_textblock_node_format_next_get (const Evas_Object_Textblock_Node_Format *n)
const
Evas_Object_Textblock_Node_Format
evas_textblock_node_format_prev_get (const Evas_Object_Textblock_Node_Format *n)
void evas_textblock_cursor_set_at_format (Evas_Textblock_Cursor *cur, const Evas_Object_Textblock_Node_Format *n)
const
Evas_Object_Textblock_Node_Format
evas_textblock_cursor_format_get (const Evas_Textblock_Cursor *cur)
const char * evas_textblock_node_format_text_get (const Evas_Object_Textblock_Node_Format *fnode)
void evas_textblock_cursor_at_format_set (Evas_Textblock_Cursor *cur, const Evas_Object_Textblock_Node_Format *fmt)
Eina_Bool evas_textblock_cursor_format_is_visible_get (const Evas_Textblock_Cursor *cur)
Eina_Bool evas_textblock_cursor_format_next (Evas_Textblock_Cursor *cur)
Eina_Bool evas_textblock_cursor_format_prev (Evas_Textblock_Cursor *cur)
Eina_Bool evas_textblock_cursor_is_format (const Evas_Textblock_Cursor *cur)
int evas_textblock_cursor_pos_get (const Evas_Textblock_Cursor *cur)
Eina_Bool evas_textblock_cursor_line_set (Evas_Textblock_Cursor *cur, int line)
Eina_Bool evas_textblock_cursor_format_append (Evas_Textblock_Cursor *cur, const char *format)
Eina_Bool evas_textblock_cursor_format_prepend (Evas_Textblock_Cursor *cur, const char *format)
void evas_textblock_cursor_range_delete (Evas_Textblock_Cursor *cur1, Evas_Textblock_Cursor *cur2)
const char * evas_textblock_cursor_paragraph_text_get (const Evas_Textblock_Cursor *cur)
int evas_textblock_cursor_paragraph_text_length_get (const Evas_Textblock_Cursor *cur)
Eina_Bool evas_textblock_cursor_visible_range_get (Evas_Textblock_Cursor *start, Evas_Textblock_Cursor *end)
Eina_Listevas_textblock_cursor_range_formats_get (const Evas_Textblock_Cursor *cur1, const Evas_Textblock_Cursor *cur2)
char * evas_textblock_cursor_range_text_get (const Evas_Textblock_Cursor *cur1, const Evas_Textblock_Cursor *cur2, Evas_Textblock_Text_Type format)
char * evas_textblock_cursor_content_get (const Evas_Textblock_Cursor *cur)
Eina_Bool evas_textblock_cursor_geometry_bidi_get (const Evas_Textblock_Cursor *cur, Evas_Coord *cx, Evas_Coord *cy, Evas_Coord *cw, Evas_Coord *ch, Evas_Coord *cx2, Evas_Coord *cy2, Evas_Coord *cw2, Evas_Coord *ch2, Evas_Textblock_Cursor_Type ctype)
int evas_textblock_cursor_geometry_get (const Evas_Textblock_Cursor *cur, Evas_Coord *cx, Evas_Coord *cy, Evas_Coord *cw, Evas_Coord *ch, Evas_BiDi_Direction *dir, Evas_Textblock_Cursor_Type ctype)
int evas_textblock_cursor_char_geometry_get (const Evas_Textblock_Cursor *cur, Evas_Coord *cx, Evas_Coord *cy, Evas_Coord *cw, Evas_Coord *ch)
int evas_textblock_cursor_pen_geometry_get (const Evas_Textblock_Cursor *cur, Evas_Coord *cpen_x, Evas_Coord *cy, Evas_Coord *cadv, Evas_Coord *ch)
int evas_textblock_cursor_line_geometry_get (const Evas_Textblock_Cursor *cur, Evas_Coord *cx, Evas_Coord *cy, Evas_Coord *cw, Evas_Coord *ch)
int evas_textblock_cursor_line_coord_set (Evas_Textblock_Cursor *cur, Evas_Coord y)
Eina_Listevas_textblock_cursor_range_geometry_get (const Evas_Textblock_Cursor *cur1, const Evas_Textblock_Cursor *cur2)
Eina_Iteratorevas_textblock_cursor_range_simple_geometry_get (const Evas_Textblock_Cursor *cur1, const Evas_Textblock_Cursor *cur2)
Eina_Bool evas_textblock_cursor_format_item_geometry_get (const Evas_Textblock_Cursor *cur, Evas_Coord *cx, Evas_Coord *cy, Evas_Coord *cw, Evas_Coord *ch)
Eina_Bool evas_textblock_cursor_eol_get (const Evas_Textblock_Cursor *cur)
Eina_Bool evas_textblock_cursor_char_prev (Evas_Textblock_Cursor *obj)
 Advances the cursor one char backwards.
Eina_Bool evas_textblock_cursor_char_next (Evas_Textblock_Cursor *obj)
 Advances the cursor one char forward.
Eina_Bool evas_textblock_cursor_paragraph_next (Evas_Textblock_Cursor *obj)
 Advances the cursor one grapheme cluster backwards.
Eina_Bool evas_textblock_cursor_paragraph_prev (Evas_Textblock_Cursor *obj)
 Advances to the end of the previous text node.
Eina_Bool evas_textblock_cursor_word_start (Evas_Textblock_Cursor *obj)
 Moves the cursor to the start of the word under the cursor.
Eina_Bool evas_textblock_cursor_word_end (Evas_Textblock_Cursor *obj)
 Moves the cursor to the end of the word under the cursor.
Evas_Objectevas_object_textblock_add (Evas *e)
char * evas_textblock_text_markup_to_utf8 (const Evas_Object *obj, const char *text)
char * evas_textblock_text_utf8_to_markup (const Evas_Object *obj, const char *text)
void evas_object_textblock_clear (Evas_Object *obj)
void evas_object_textblock_text_markup_set (Evas_Object *obj, const char *text)
const char * evas_object_textblock_text_markup_get (Evas_Object *obj)
void evas_object_textblock_text_markup_prepend (Evas_Textblock_Cursor *cur, const char *text)
void evas_object_textblock_style_set (Evas_Object *obj, const Evas_Textblock_Style *ts)
Evas_Textblock_Styleevas_object_textblock_style_get (const Evas_Object *obj)
void evas_object_textblock_style_user_push (Evas_Object *obj, Evas_Textblock_Style *ts)
const Evas_Textblock_Styleevas_object_textblock_style_user_peek (const Evas_Object *obj)
void evas_object_textblock_style_user_pop (Evas_Object *obj)
const
Evas_Object_Textblock_Node_Format
evas_textblock_node_format_first_get (Evas_Object *obj)
const
Evas_Object_Textblock_Node_Format
evas_textblock_node_format_last_get (Evas_Object *obj)
const Eina_Listevas_textblock_node_format_list_get (const Evas_Object *obj, const char *anchor)
void evas_textblock_node_format_remove_pair (Evas_Object *obj, Evas_Object_Textblock_Node_Format *n)
Eina_Bool evas_object_textblock_line_number_geometry_get (const Evas_Object *obj, int line, Evas_Coord *cx, Evas_Coord *cy, Evas_Coord *cw, Evas_Coord *ch)
void evas_textblock_cursor_copy (const Evas_Textblock_Cursor *cur, Evas_Textblock_Cursor *cur_dest)
Evas_Textblock_Cursorevas_object_textblock_cursor_new (const Evas_Object *obj)
Eina_Bool evas_textblock_cursor_char_coord_set (Evas_Textblock_Cursor *obj, Evas_Coord x, Evas_Coord y)
 Sets the position of the cursor according to the X and Y coordinates.
void evas_textblock_cursor_free (Evas_Textblock_Cursor *cur)
 Sets the position of the cursor according to the X and Y coordinates and grapheme clusters of text.
int evas_textblock_cursor_text_append (Evas_Textblock_Cursor *cur, const char *text)
int evas_textblock_cursor_text_prepend (Evas_Textblock_Cursor *cur, const char *text)
void evas_object_textblock_replace_char_set (Evas_Object *obj, const char *ch)
 The "replacement character" to use for the given textblock object.
const char * evas_object_textblock_replace_char_get (const Evas_Object *obj)
 The "replacement character" to use for the given textblock object.
void evas_object_textblock_valign_set (Evas_Object *obj, double align)
 The vertical alignment of text within the textblock object as a whole.
double evas_object_textblock_valign_get (const Evas_Object *obj)
 The vertical alignment of text within the textblock object as a whole.
void evas_textblock_cursor_paragraph_first (Evas_Textblock_Cursor *cur)
void evas_textblock_cursor_paragraph_last (Evas_Textblock_Cursor *cur)
int evas_textblock_cursor_compare (const Evas_Textblock_Cursor *cur1, const Evas_Textblock_Cursor *cur2)
void evas_textblock_cursor_line_char_first (Evas_Textblock_Cursor *cur)
 Checks if two cursors are equal.
void evas_textblock_cursor_line_char_last (Evas_Textblock_Cursor *cur)
void evas_textblock_cursor_pos_set (Evas_Textblock_Cursor *cur, int _pos)
void evas_textblock_cursor_paragraph_char_first (Evas_Textblock_Cursor *cur)
void evas_textblock_cursor_paragraph_char_last (Evas_Textblock_Cursor *cur)
void evas_textblock_cursor_char_delete (Evas_Textblock_Cursor *cur)
Evas_Textblock_Cursorevas_object_textblock_cursor_get (const Evas_Object *obj)

Typedefs

typedef Eo Evas_Textblock
typedef struct
_Efl_Canvas_Textblock_Style 
Evas_Textblock_Style
typedef struct
_Efl_Text_Cursor_Handle 
Evas_Textblock_Cursor
typedef struct
_Evas_Textblock_Node_Format 
Evas_Object_Textblock_Node_Format
typedef struct
_Evas_Textblock_Node_Format 
Evas_Textblock_Node_Format
typedef Eina_Rectangle Evas_Textblock_Rectangle
typedef enum
_Evas_Textblock_Text_Type 
Evas_Textblock_Text_Type
typedef enum
_Evas_Textblock_Cursor_Type 
Evas_Textblock_Cursor_Type

Typedef Documentation

A format node.

XXX: Adapter for legacy.

typedef Eo Evas_Textblock

Get the object's content fit options.

Parameters:
objThe textblock object.
[out]p_optionscontent fitting options.
Returns:
Returns error code. Set the object's content fit options.
Parameters:
objThe textblock object.
[in]optionscontent fitting options.
Returns:
Returns error code. Get the object's max and min font sizes used for fitting content.
Parameters:
objThe textblock object.
[out]p_min_font_sizemin font size used when fitting content.
[out]p_max_font_sizemax font size used when fitting content.
Returns:
Returns error code. Set the object's max and min font sizes used for fitting content.
Parameters:
objThe textblock object.
[in]min_font_sizemin font size used when fitting content.
[in]max_font_sizemax font size used when fitting content.
Returns:
Returns error code. Get the object's fitting step size when trying fonts between min font size and max font size.
Parameters:
objThe textblock object.
[out]p_step_sizestep jumps between min and max font size.
Returns:
Returns error code. Set the object's fitting step size when trying fonts between min font size and max font size.
Parameters:
objThe textblock object.
[out]step_sizestep jumps between min and max font size.
Returns:
Returns error code. Get copy of the object's fitting font size array used internally
Parameters:
objThe textblock object.
[out]p_size_arraypointer to size array (passing NULL will ignore filling array).
[out]p_size_array_lenthe length of internall font sizes array.
[out]request_size_arrayrequest to fill specific amount in p_size_array.
Returns:
Returns error code. Set the object's fitting font size array that will be used internally Changing fitting step_size,min_font_size,max_font size will generate new array Internall array will be sorted
Parameters:
objThe textblock object.
[in]p_size_arraypointer to font sizes array.
[in]size_array_lenthe length passed font sizes array.
Returns:
Returns error code.

A textblock cursor object, used to maipulate the cursor of an evas textblock

See also:
evas_object_textblock_cursor_new

Cursor type for evas textblock.

typedef struct _Evas_Textblock_Node_Format Evas_Textblock_Node_Format

A format node.

XXX: Adapter for legacy.

General-purpose rectangle that represents some geometry in this object.

Text type for evas textblock.


Enumeration Type Documentation

Cursor type for evas textblock.

Enumerator:
EVAS_TEXTBLOCK_CURSOR_UNDER 

cursor type is under

EVAS_TEXTBLOCK_CURSOR_BEFORE 

cursor type is before

Text type for evas textblock.

Enumerator:
EVAS_TEXTBLOCK_TEXT_RAW 

textblock text of type raw

EVAS_TEXTBLOCK_TEXT_PLAIN 

textblock text of type plain

EVAS_TEXTBLOCK_TEXT_MARKUP 

textblock text of type markup


Function Documentation

Adds a textblock to the given evas.

Parameters:
eThe given evas.
Returns:
The new textblock object.
Since :
2.3.1
Examples:
ecore_imf_example.c, and evas-images2.c.
const char* evas_object_textblock_bidi_delimiters_get ( const Efl_Canvas_Textblock *  obj)

BiDi delimiters are used for in-paragraph separation of bidi segments. This is useful, for example, in the recipient fields of e-mail clients where bidi oddities can occur when mixing RTL and LTR.

Parameters:
[in]objThe object.
Returns:
A null terminated string of delimiters, e.g ",|" or null if empty
Since (EFL) :
1.18
Since :
2.3.1
void evas_object_textblock_bidi_delimiters_set ( Efl_Canvas_Textblock *  obj,
const char *  delim 
)

BiDi delimiters are used for in-paragraph separation of bidi segments. This is useful, for example, in the recipient fields of e-mail clients where bidi oddities can occur when mixing RTL and LTR.

Parameters:
[in]objThe object.
[in]delimA null terminated string of delimiters, e.g ",|" or null if empty
Since (EFL) :
1.18
Since :
2.3.1

Clear the textblock object.

Note:
Does *NOT* free the Evas object itself.
Parameters:
objthe object to clear.
Returns:
nothing.
Since :
2.3.1

Get the object's main cursor.

Since :
2.3.1

Create a new cursor, associate it to the obj and init it to point to the start of the textblock.

Association to the object means the cursor will be updated when the object will change.

Note: if you need speed and you know what you are doing, it's slightly faster to just allocate the cursor yourself and not associate it. (only people developing the actual object, and not users of the object).

Parameters:
objThe textblock to which the new cursor will associate.
Returns:
Returns a new cursor associated with the given textblock object.
Since :
2.3.1
Examples:
ecore_imf_example.c.
Eina_Bool evas_object_textblock_legacy_newline_get ( const Efl_Canvas_Textblock *  obj)

When true, newline character will behave as a paragraph separator.

Parameters:
[in]objThe object.
Returns:
true for legacy mode, false otherwise
Since (EFL) :
1.18
Since :
2.3.1
void evas_object_textblock_legacy_newline_set ( Efl_Canvas_Textblock *  obj,
Eina_Bool  mode 
)

When true, newline character will behave as a paragraph separator.

Parameters:
[in]objThe object.
[in]modetrue for legacy mode, false otherwise
Since (EFL) :
1.18
Since :
2.3.1
Eina_Bool evas_object_textblock_line_number_geometry_get ( const Evas_Object obj,
int  line,
Evas_Coord *  cx,
Evas_Coord *  cy,
Evas_Coord *  cw,
Evas_Coord *  ch 
)

Gets the geometry of the line specified by its number.

Parameters:
objThe textblock object to query.
linethe line number of the queried line.
Returns:
Returns no value.
Since :
2.3.1
Eina_Bool evas_object_textblock_obstacle_add ( Efl_Canvas_Textblock *  obj,
Efl_Canvas_Object eo_obs 
)

Add obstacle evas object eo_obs to be observed during layout of text.

The textblock does the layout of the text according to the position of the obstacle.

Parameters:
[in]objThe object.
[in]eo_obsObstacle object
Returns:
true on success, false otherwise.
Since (EFL) :
1.18
Since :
3.0f(2.3.1)
Eina_Bool evas_object_textblock_obstacle_del ( Efl_Canvas_Textblock *  obj,
Efl_Canvas_Object eo_obs 
)

Removes eo_obs from observation during text layout.

Parameters:
[in]objThe object.
[in]eo_obsObstacle object
Returns:
true on success, false otherwise.
Since (EFL) :
1.18
Since :
3.0f(2.3.1)
void evas_object_textblock_obstacles_update ( Efl_Canvas_Textblock *  obj)

Triggers for relayout due to obstacles' state change.

The obstacles alone don't affect the layout, until this is called. Use this after doing changes (moving, positioning etc.) in the obstacles that you would like to be considered in the layout.

For example: if you have just repositioned the obstacles to differrent coordinates relative to the textblock, you need to call this so it will consider this new state and will relayout the text.

Parameters:
[in]objThe object.
Since (EFL) :
1.18
Since :
3.0f(2.3.1)

The "replacement character" to use for the given textblock object.

Returns:
The charset name.
Since :
2.3.1
void evas_object_textblock_replace_char_set ( Evas_Object obj,
const char *  ch 
)

The "replacement character" to use for the given textblock object.

Parameters:
[in]chThe charset name.
Since :
2.3.1
void evas_object_textblock_size_formatted_get ( const Efl_Canvas_Textblock *  obj,
int *  width,
int *  height 
)

The formatted width and height.

This calculates the actual size after restricting the textblock to the current size of the object.

The main difference between this and evas_object_textblock_size_native_get is that the "native" function does not wrapping into account it just calculates the real width of the object if it was placed on an infinite canvas, while this function gives the size after wrapping according to the size restrictions of the object.

For example for a textblock containing the text: "You shall not pass!" with no margins or padding and assuming a monospace font and a size of 7x10 char widths (for simplicity) has a native size of 19x1 and a formatted size of 5x4.

Parameters:
[in]objThe object.
[out]widthThe width of the object.
[out]heightThe height of the object.
Since (EFL) :
1.18
Since :
2.3.1
void evas_object_textblock_size_native_get ( const Efl_Canvas_Textblock *  obj,
int *  width,
int *  height 
)

The native width and height.

This calculates the actual size without taking account the current size of the object.

The main difference between this and evas_object_textblock_size_formatted_get is that the "native" function does not take wrapping into account it just calculates the real width of the object if it was placed on an infinite canvas, while the "formatted" function gives the size after wrapping text according to the size restrictions of the object.

For example for a textblock containing the text: "You shall not pass!" with no margins or padding and assuming a monospace font and a size of 7x10 char widths (for simplicity) has a native size of 19x1 and a formatted size of 5x4.

Parameters:
[in]objThe object.
[out]widthThe width returned.
[out]heightThe height returned.
Since (EFL) :
1.18
Since :
2.3.1

Gets the object's current style.

Parameters:
objthe object to get the style from.
Returns:
Returns the current active style.
See also:
evas_textblock_style_user_peek()
Since :
2.3.1
void evas_object_textblock_style_insets_get ( const Efl_Canvas_Textblock *  obj,
int *  left,
int *  right,
int *  top,
int *  bottom 
)

Returns the currently visible range.

The given start and end cursor act like out-variables here, as they are set to the positions of the start and the end of the visible range in the text, respectively.

Parameters:
[in]objThe object.
[in]startRange start position
[in]endRange end position
Returns:
true on success, false otherwise
Since (EFL) :
1.18 Gets the left, right, top and bottom insets of the text.

The inset is any applied padding on the text.

Parameters:
[in]objThe object.
[out]leftThe left padding
[out]rightThe right padding
[out]topThe top padding
[out]bottomThe bottom padding
Since (EFL) :
1.18
Since :
3.0f(2.3.1)

Sets object's style to given style.

Parameters:
objthe object we set the style on
tsthe style to set.
Returns:
Returns no value.
See also:
evas_textblock_style_user_push()
Since :
2.3.1
Examples:
ecore_imf_example.c, and evas-images2.c.

Peeks at the user-styles stack

Parameters:
objthe object to get the style from.
Returns:
Returns the user style at the top of the user style stack.
See also:
evas_textblock_style_user_pop()
Since :
2.3.1

Removes the style at the top of the user-style stack

Parameters:
objthe object to remove the style from.
Returns:
Returns no value.
See also:
evas_textblock_style_user_peek()
Since :
2.3.1

Pushes ts to the top of the user style stack.

FIXME: API is solid but currently only supports 1 style in the stack.

The user style overrides the corresponding elements of the regular style. This is the proper way to do theme overrides in code.

Parameters:
objthe object to push the style.
See also:
also evas_textblock_style_set().
Since (EFL) :
1.2
Since :
2.3.1

Gets the current markup text of the textblock object.

Parameters:
objthe textblock object.
Returns:
Returns the current markup text.
Since :
2.3.1
Examples:
ecore_imf_example.c.
void evas_object_textblock_text_markup_prepend ( Evas_Textblock_Cursor cur,
const char *  text 
)

Prepends markup to the cursor cur.

Note:
assumes text does not include the unicode object replacement char (0xFFFC)
Parameters:
curthe cursor to prepend to.
textthe markup text to prepend.
Returns:
Return no value.
Since :
2.3.1
Examples:
ecore_imf_example.c.
void evas_object_textblock_text_markup_set ( Evas_Object obj,
const char *  text 
)

Sets given text as markup for the textblock object.

Note:
assumes text does not include the unicode object replacement char (0xFFFC)
Parameters:
objthe textblock object.
textthe markup text to set.
Returns:
Returns no value.
Since :
2.3.1
Examples:
evas-images2.c.

The vertical alignment of text within the textblock object as a whole.

Normally alignment is 0.0 (top of object). Values given should be between 0.0 and 1.0 (1.0 bottom of object, 0.5 being vertically centered etc.).

Returns:
The alignment set for the object.
Since (EFL) :
1.1
Since :
2.3.1
void evas_object_textblock_valign_set ( Evas_Object obj,
double  align 
)

The vertical alignment of text within the textblock object as a whole.

Normally alignment is 0.0 (top of object). Values given should be between 0.0 and 1.0 (1.0 bottom of object, 0.5 being vertically centered etc.).

Parameters:
[in]alignThe alignment set for the object.
Since (EFL) :
1.1
Since :
2.3.1

Set the cursor to point to the position of fmt.

Parameters:
curthe cursor to update
fmtthe format to update according to.
Since :
2.3.1
Eina_Bool evas_textblock_cursor_char_coord_set ( Evas_Textblock_Cursor obj,
Evas_Coord  x,
Evas_Coord  y 
)

Sets the position of the cursor according to the X and Y coordinates.

Parameters:
[in]yy coord to set by.
Returns:
true on success, false otherwise.
Since :
2.3.1

Deletes a single character from position pointed by given cursor.

Parameters:
curthe cursor to update.
Returns:
Returns no value.
Since :
2.3.1
Examples:
ecore_imf_example.c.
int evas_textblock_cursor_char_geometry_get ( const Evas_Textblock_Cursor cur,
Evas_Coord *  cx,
Evas_Coord *  cy,
Evas_Coord *  cw,
Evas_Coord *  ch 
)

Returns the geometry of the char at cur.

Parameters:
curthe position of the char.
cxthe x of the char.
cythe y of the char.
cwthe w of the char.
chthe h of the char.
Returns:
line number of the char on success, -1 on error.
Since :
2.3.1

Advances the cursor one char forward.

Returns:
true on success, false otherwise.
Since :
2.3.1

Advances the cursor one char backwards.

Returns:
true on success, false otherwise.
Since :
2.3.1
Examples:
ecore_imf_example.c.

Compare two cursors.

Parameters:
cur1the first cursor.
cur2the second cursor.
Returns:
-1 if cur1 < cur2, 0 if cur1 == cur2 and 1 otherwise.
Since :
2.3.1
Examples:
ecore_imf_example.c.

Return the content of the cursor.

Free the returned string pointer when done (if it is not NULL).

Parameters:
curthe cursor
Returns:
the text in the range, terminated by a nul byte (may be utf8).
Since :
2.3.1

Make cur_dest point to the same place as cur. Does not work if they don't point to the same object.

Parameters:
curthe source cursor.
cur_destdestination cursor.
Returns:
Returns no value.
Since :
2.3.1
Examples:
ecore_imf_example.c.

Checks if the cursor points to the end of the line.

Parameters:
curthe cursor to check.
Returns:
EINA_TRUE if true, EINA_FALSE otherwise.
Since :
2.3.1

Adds format to the current cursor position. If the format being added is a visible format, add it *before* the cursor position, otherwise, add it after. This behavior is because visible formats are like characters and invisible should be stacked in a way that the last one is added last.

This function works with native formats, that means that style defined tags like
won't work here. For those kind of things use markup prepend.

Parameters:
curthe cursor to where to add format at.
formatthe format to add.
Returns:
Returns true if a visible format was added, false otherwise.
See also:
evas_textblock_cursor_format_prepend() Check if the current cursor position points to the terminating null of the last paragraph. (shouldn't be allowed to point to the terminating null of any previous paragraph anyway.
Parameters:
curthe cursor to look at.
Returns:
EINA_TRUE if the cursor points to the terminating null, EINA_FALSE otherwise.
Since :
2.3.1

Return the format node at the position pointed by cur.

Parameters:
curthe position to look at.
Returns:
the format node if found, NULL otherwise.
See also:
evas_textblock_cursor_format_is_visible_get()
Since :
2.3.1

Check if the current cursor position is a visible format. This way is more efficient than evas_textblock_cursor_format_get() to check for the existence of a visible format.

Parameters:
curthe cursor to look at.
Returns:
EINA_TRUE if the cursor points to a visible format, EINA_FALSE otherwise.
See also:
evas_textblock_cursor_format_get()
Since :
2.3.1
Eina_Bool evas_textblock_cursor_format_item_geometry_get ( const Evas_Textblock_Cursor cur,
Evas_Coord *  cx,
Evas_Coord *  cy,
Evas_Coord *  cw,
Evas_Coord *  ch 
)

Get the geometry of ?

Parameters:
curone side of the range.
cur2other side of the range.
Since :
3.0f(2.3.1)

Advances to the next format node

Parameters:
curthe cursor to be updated.
Returns:
EINA_TRUE on success EINA_FALSE otherwise.
Since :
2.3.1

Adds format to the current cursor position. If the format being added is a visible format, add it *before* the cursor position, otherwise, add it after. This behavior is because visible formats are like characters and invisible should be stacked in a way that the last one is added last. If the format is visible the cursor is advanced after it.

This function works with native formats, that means that style defined tags like
won't work here. For those kind of things use markup prepend.

Parameters:
curthe cursor to where to add format at.
formatthe format to add.
Returns:
Returns true if a visible format was added, false otherwise.
See also:
evas_textblock_cursor_format_prepend()
Since :
2.3.1

Advances to the previous format node.

Parameters:
curthe cursor to update.
Returns:
EINA_TRUE on success EINA_FALSE otherwise.
Since :
2.3.1

Sets the position of the cursor according to the X and Y coordinates and grapheme clusters of text.

Parameters:
[in]yy coord to set by.
Returns:
true on success, false otherwise. Free the cursor and unassociate it from the object.
Note:
do not use it to free unassociated cursors.
Parameters:
curthe cursor to free.
Returns:
Returns no value.
Since :
2.3.1
Examples:
ecore_imf_example.c.
Eina_Bool evas_textblock_cursor_geometry_bidi_get ( const Evas_Textblock_Cursor cur,
Evas_Coord *  cx,
Evas_Coord *  cy,
Evas_Coord *  cw,
Evas_Coord *  ch,
Evas_Coord *  cx2,
Evas_Coord *  cy2,
Evas_Coord *  cw2,
Evas_Coord *  ch2,
Evas_Textblock_Cursor_Type  ctype 
)

Returns the geometry of two cursors ("split cursor"), if logical cursor is between LTR/RTL text, also considering paragraph direction. Upper cursor is shown for the text of the same direction as paragraph, lower cursor - for opposite.

Split cursor geometry is valid only in '|' cursor mode. In this case EINA_TRUE is returned and cx2, cy2, cw2, ch2 are set, otherwise it behaves like cursor_geometry_get.

Parameters:
[in]curthe cursor.
[out]cxthe x of the cursor (or upper cursor)
[out]cythe y of the cursor (or upper cursor)
[out]cwthe width of the cursor (or upper cursor)
[out]chthe height of the cursor (or upper cursor)
[out]cx2the x of the lower cursor
[out]cy2the y of the lower cursor
[out]cw2the width of the lower cursor
[out]ch2the height of the lower cursor
[in]ctypethe type of the cursor.
Returns:
EINA_TRUE for split cursor, EINA_FALSE otherwise
Since (EFL) :
1.8
Since :
2.3.1
int evas_textblock_cursor_geometry_get ( const Evas_Textblock_Cursor cur,
Evas_Coord *  cx,
Evas_Coord *  cy,
Evas_Coord *  cw,
Evas_Coord *  ch,
Evas_BiDi_Direction *  dir,
Evas_Textblock_Cursor_Type  ctype 
)

Returns the geometry of the cursor. Depends on the type of cursor requested. This should be used instead of char_geometry_get because there are weird special cases with BiDi text. in '_' cursor mode (i.e a line below the char) it's the same as char_geometry get, except for the case of the last char of a line which depends on the paragraph direction.

in '|' cursor mode (i.e a line between two chars) it is very variable. For example consider the following visual string: "abcCBA" (ABC are rtl chars), a cursor pointing on A should actually draw a '|' between the c and the C.

Parameters:
curthe cursor.
cxthe x of the cursor
cythe y of the cursor
cwthe width of the cursor
chthe height of the cursor
dirthe direction of the cursor, can be NULL.
ctypethe type of the cursor.
Returns:
line number of the char on success, -1 on error.
Since :
2.3.1
Examples:
ecore_imf_example.c.

Returns true if the cursor points to a format.

Parameters:
curthe cursor to check.
Returns:
EINA_TRUE if a cursor points to a format EINA_FALSE otherwise.
Since :
2.3.1

Checks if two cursors are equal.

This is faster than evas_textblock_cursor_compare so it should be used if all we care about is equality.

Parameters:
[in]curThe second cursor.
Returns:
true if equal
Since (EFL) :
1.18 Go to the start of the current line
Parameters:
curthe cursor to update.
Returns:
Returns no value.
Since :
2.3.1

Go to the end of the current line.

Parameters:
curthe cursor to update.
Returns:
Returns no value.
Since :
2.3.1

Set the cursor position according to the y coord.

Parameters:
curthe cur to be set.
ythe coord to set by.
Returns:
the line number found, -1 on error.
Since :
2.3.1
int evas_textblock_cursor_line_geometry_get ( const Evas_Textblock_Cursor cur,
Evas_Coord *  cx,
Evas_Coord *  cy,
Evas_Coord *  cw,
Evas_Coord *  ch 
)

Returns the geometry of the line at cur.

Parameters:
curthe position of the line.
cxthe x of the line.
cythe y of the line.
cwthe width of the line.
chthe height of the line.
Returns:
line number of the line on success, -1 on error.
Since :
2.3.1

Go to the start of the line passed

Parameters:
curcursor to update.
linenumber to set.
Returns:
EINA_TRUE on success, EINA_FALSE on error.
Since :
2.3.1

Go to the first char in the node the cursor is pointing on.

Parameters:
curthe cursor to update.
Returns:
Returns no value.
Since :
2.3.1

Go to the last char in a text node.

Parameters:
curthe cursor to update.
Returns:
Returns no value.
Since :
2.3.1

Sets the cursor to the start of the first text node.

Parameters:
curthe cursor to update.
Returns:
Returns no value.
Since :
2.3.1

sets the cursor to the end of the last text node.

Parameters:
curthe cursor to set.
Returns:
Returns no value.
Since :
2.3.1

Advances the cursor one grapheme cluster backwards.

Returns:
true on success, false otherwise. Advances the cursor one grapheme cluster forward.
true on success, false otherwise. Advances to the start of the next text node
true if managed to advance, false otherwise
Since :
2.3.1

Advances to the end of the previous text node.

Returns:
true if managed to advance, false otherwise
Since :
2.3.1

Return the text of the paragraph cur points to - returns the text in markup.

Parameters:
curthe cursor pointing to the paragraph.
Returns:
the text on success, NULL otherwise.
Since :
2.3.1

Return the length of the paragraph, cheaper the eina_unicode_strlen()

Parameters:
curthe position of the paragraph.
Returns:
the length of the paragraph on success, -1 otehrwise.
Since :
2.3.1
int evas_textblock_cursor_pen_geometry_get ( const Evas_Textblock_Cursor cur,
Evas_Coord *  cpen_x,
Evas_Coord *  cy,
Evas_Coord *  cadv,
Evas_Coord *  ch 
)

Returns the geometry of the pen at cur.

Parameters:
curthe position of the char.
cpen_xthe pen_x of the char.
cythe y of the char.
cadvthe adv of the char.
chthe h of the char.
Returns:
line number of the char on success, -1 on error.
Since :
2.3.1

Return the current cursor pos.

Parameters:
curthe cursor to take the position from.
Returns:
the position or -1 on error
Since :
2.3.1
Examples:
ecore_imf_example.c.
void evas_textblock_cursor_pos_set ( Evas_Textblock_Cursor cur,
int  _pos 
)

Set the cursor pos.

Parameters:
curthe cursor to be set.
_posthe pos to set.
Since :
2.3.1
Examples:
ecore_imf_example.c.

Delete the range between cur1 and cur2.

Parameters:
cur1one side of the range.
cur2the second side of the range
Returns:
Returns no value.
Since :
2.3.1
Examples:
ecore_imf_example.c.

Return the format nodes in the range between cur1 and cur2.

Parameters:
cur1one side of the range.
cur2the other side of the range
Returns:
the foramt nodes in the range. You have to free it.
Since (EFL) :
1.1
Since :
2.3.1

Get the geometry of a range.

Parameters:
cur1one side of the range.
cur2other side of the range.
Returns:
a list of Rectangles representing the geometry of the range.
Since :
2.3.1

Get the simple geometry of a range. The simple geometry is the geometry in which rectangles in middle lines of range are merged into one big rectangle.

Since (EFL) :
1.13
Parameters:
cur1one side of the range.
cur2other side of the range.
Returns:
an iterator of rectangles representing the geometry of the range.
Since :
3.0f(2.3.1)

Return the text in the range between cur1 and cur2

Parameters:
cur1one side of the range.
cur2the other side of the range
formatThe form on which to return the text. Markup - in textblock markup. Plain - UTF8.
Returns:
the text in the range
See also:
elm_entry_markup_to_utf8()
Since :
2.3.1

Sets the cursor to point to the place where format points to.

Parameters:
curthe cursor to update.
nthe format node to update according.
Deprecated:
duplicate of evas_textblock_cursor_at_format_set
Since :
2.3.1
int evas_textblock_cursor_text_append ( Evas_Textblock_Cursor cur,
const char *  text 
)

Adds text to the current cursor position and set the cursor to *before* the start of the text just added.

Parameters:
curthe cursor to where to add text at.
textthe text to add.
Returns:
Returns the len of the text added.
See also:
evas_textblock_cursor_text_prepend()
Since :
2.3.1
int evas_textblock_cursor_text_prepend ( Evas_Textblock_Cursor cur,
const char *  text 
)

Adds text to the current cursor position and set the cursor to *after* the start of the text just added.

Parameters:
curthe cursor to where to add text at.
textthe text to add.
Returns:
Returns the len of the text added.
See also:
evas_textblock_cursor_text_append()
Since :
2.3.1

Return the currently visible range.

Parameters:
startthe start of the range.
endthe end of the range.
Returns:
EINA_TRUE on success, EINA_FALSE otherwise.
Since (EFL) :
1.1
Since :
2.3.1

Moves the cursor to the end of the word under the cursor.

Returns:
true on success, false otherwise
Since :
2.3.1

Moves the cursor to the start of the word under the cursor.

Returns:
true on success, false otherwise
Since :
2.3.1
const char* evas_textblock_escape_string_get ( const char *  escape)

Returns the unescaped version of escape.

Parameters:
escapethe string to be escaped
Returns:
the unescaped version of escape
Since :
2.3.1
const char* evas_textblock_escape_string_range_get ( const char *  escape_start,
const char *  escape_end 
)

Return the unescaped version of the string between start and end.

Parameters:
escape_startthe start of the string.
escape_endthe end of the string.
Returns:
the unescaped version of the range
Since :
2.3.1

Gets the first format node

Parameters:
objThe textblock object.
Returns:
Returns the first format node.
Since :
2.3.1

Gets the last format node

Parameters:
objThe textblock object.
Returns:
Returns the first format node.
Since :
2.3.1
const Eina_List* evas_textblock_node_format_list_get ( const Evas_Object obj,
const char *  anchor 
)

Gets a list of format nodes that match given format.

Parameters:
objThe textblock object to query.
anchorThe format to find in the textblock.
Returns:
Returns a list of format nodes that match the given format.
Since :
2.3.1

Returns the next format node (after n)

Parameters:
nthe current format node - not null.
Returns:
Returns the next format node, may be null.
Since :
2.3.1

Returns the prev format node (after n)

Parameters:
nthe current format node - not null.
Returns:
Returns the prev format node, may be null.
Since :
2.3.1

Removes format node and its matching format node.

Parameters:
objThe textblock object.
nThe format node to remove.
Returns:
Returns no value.
Since :
2.3.1

Get the text format representation of the format node.

Parameters:
fnodethe format node.
Returns:
the textual format of the format node.
Since :
2.3.1
const char* evas_textblock_string_escape_get ( const char *  string,
int *  len_ret 
)

Returns the escaped version of the string.

Parameters:
stringto escape
len_retthe len of the part of the string that was used.
Returns:
the escaped string.
Since :
2.3.1

Destroys a textblock style.

Parameters:
tsThe textblock style to free.
Since :
2.3.1
Examples:
ecore_imf_example.c.
const char* evas_textblock_style_get ( const Evas_Textblock_Style ts)

Return the text of the style ts.

Parameters:
tsthe style to get it's text.
Returns:
the text of the style or null on error.
Since :
2.3.1

Creates a new textblock style.

Returns:
The new textblock style.
Since :
2.3.1
Examples:
ecore_imf_example.c, and evas-images2.c.
void evas_textblock_style_set ( Evas_Textblock_Style ts,
const char *  text 
)

Sets the style ts to the style passed as text by text. Expected a string consisting of many (or none) tag='format' pairs.

Parameters:
tsthe style to set.
textthe text to parse - NOT NULL.
Returns:
Returns no value.
Since :
2.3.1
Examples:
ecore_imf_example.c, and evas-images2.c.
char* evas_textblock_text_markup_to_utf8 ( const Evas_Object obj,
const char *  text 
)

Return the plain version of the markup.

Works as if you set the markup to a textblock and then retrieve the plain version of the text. i.e:
and <
> will be replaced with
, &...; with the actual char and etc.

Parameters:
objThe textblock object to work with. (if NULL, tries the default).
textThe markup text (if NULL, return NULL).
Returns:
An allocated plain text version of the markup.
Since (EFL) :
1.2
Since :
2.3.1
char* evas_textblock_text_utf8_to_markup ( const Evas_Object obj,
const char *  text 
)

Return the markup version of the plain text.

Replaces \n -> <br/> \t -> <tab/> and etc. Generally needed before you pass plain text to be set in a textblock.

Parameters:
objthe textblock object to work with (if NULL, it just does the default behaviour, i.e with no extra object information).
textThe plain text (if NULL, return NULL).
Returns:
An allocated markup version of the plain text.
Since (EFL) :
1.2
Since :
2.3.1