Textblock Object Functions

Functions used to create and manipulate textblock objects. More...

Typedefs

typedef struct
_Evas_Object_Textblock_Node_Format 
Evas_Object_Textblock_Node_Format
 A format node.

Functions

Evas_Objectevas_object_textblock_add (Evas *e)
 Adds a textblock to the given evas.
const char * evas_textblock_escape_string_get (const char *escape)
 Returns the unescaped version of escape.
const char * evas_textblock_string_escape_get (const char *string, int *len_ret)
 Returns the escaped version of the string.
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.
char * evas_textblock_text_markup_to_utf8 (const Evas_Object *obj, const char *text)
 Return the plain version of the markup.
char * evas_textblock_text_utf8_to_markup (const Evas_Object *obj, const char *text)
 Return the markup version of the plain text.
Evas_Textblock_Style * evas_textblock_style_new (void)
 Creates a new textblock style.
void evas_textblock_style_free (Evas_Textblock_Style *ts)
 Destroys a textblock style.
void evas_textblock_style_set (Evas_Textblock_Style *ts, const char *text)
 Sets the style ts to the style passed as text by text.
const char * evas_textblock_style_get (const Evas_Textblock_Style *ts)
 Return the text of the style ts.
void evas_object_textblock_style_set (Evas_Object *obj, Evas_Textblock_Style *ts)
 Set the objects style to ts.
const Evas_Textblock_Style * evas_object_textblock_style_get (const Evas_Object *obj)
 Return the style of an object.
void evas_object_textblock_style_user_push (Evas_Object *obj, Evas_Textblock_Style *ts)
 Push ts to the top of the user style stack.
void evas_object_textblock_style_user_pop (Evas_Object *obj)
 Del the from the top of the user style stack.
const Evas_Textblock_Style * evas_object_textblock_style_user_peek (const Evas_Object *obj)
 Get (don't remove) the style at the top of the user style stack.
void evas_object_textblock_replace_char_set (Evas_Object *obj, const char *ch)
 Set the "replacement character" to use for the given textblock object.
const char * evas_object_textblock_replace_char_get (Evas_Object *obj)
 Get the "replacement character" for given textblock object.
void evas_object_textblock_valign_set (Evas_Object *obj, double align)
 Sets the vertical alignment of text within the textblock object as a whole.
double evas_object_textblock_valign_get (const Evas_Object *obj)
 Gets the vertical alignment of a textblock.
void evas_object_textblock_bidi_delimiters_set (Evas_Object *obj, const char *delim)
 Sets the BiDi delimiters used in the textblock.
const char * evas_object_textblock_bidi_delimiters_get (const Evas_Object *obj)
 Gets the BiDi delimiters used in the textblock.
void evas_object_textblock_legacy_newline_set (Evas_Object *obj, Eina_Bool mode)
 Sets newline mode.
Eina_Bool evas_object_textblock_legacy_newline_get (const Evas_Object *obj)
 Gets newline mode.
void evas_object_textblock_text_markup_set (Evas_Object *obj, const char *text)
 Sets the tetxblock's text to the markup text.
void evas_object_textblock_text_markup_prepend (Evas_Textblock_Cursor *cur, const char *text)
 Prepends markup to the cursor cur.
const char * evas_object_textblock_text_markup_get (const Evas_Object *obj)
 Return the markup of the object.
Evas_Textblock_Cursor * evas_object_textblock_cursor_get (const Evas_Object *obj)
 Return the object's main cursor.
Evas_Textblock_Cursor * evas_object_textblock_cursor_new (const Evas_Object *obj)
 Create a new cursor, associate it to the obj and init it to point to the start of the textblock.
void evas_textblock_cursor_free (Evas_Textblock_Cursor *cur)
 Free the cursor and unassociate it from the object.
void evas_textblock_cursor_paragraph_first (Evas_Textblock_Cursor *cur)
 Sets the cursor to the start of the first text node.
void evas_textblock_cursor_paragraph_last (Evas_Textblock_Cursor *cur)
 sets the cursor to the end of the last text node.
Eina_Bool evas_textblock_cursor_paragraph_next (Evas_Textblock_Cursor *cur)
 Advances to the start of the next text node.
Eina_Bool evas_textblock_cursor_paragraph_prev (Evas_Textblock_Cursor *cur)
 Advances to the end of the previous text node.
const Eina_List * evas_textblock_node_format_list_get (const Evas_Object *obj, const char *anchor)
 Returns the.
const
Evas_Object_Textblock_Node_Format
evas_textblock_node_format_first_get (const Evas_Object *obj)
 Returns the first format node.
const
Evas_Object_Textblock_Node_Format
evas_textblock_node_format_last_get (const Evas_Object *obj)
 Returns the last format node.
const
Evas_Object_Textblock_Node_Format
evas_textblock_node_format_next_get (const Evas_Object_Textblock_Node_Format *n)
 Returns the next format node (after n)
const
Evas_Object_Textblock_Node_Format
evas_textblock_node_format_prev_get (const Evas_Object_Textblock_Node_Format *n)
 Returns the prev format node (after n)
void evas_textblock_node_format_remove_pair (Evas_Object *obj, Evas_Object_Textblock_Node_Format *n)
 Remove a format node and it's match.
void evas_textblock_cursor_set_at_format (Evas_Textblock_Cursor *cur, const Evas_Object_Textblock_Node_Format *n)
 Sets the cursor to point to the place where format points to.
const
Evas_Object_Textblock_Node_Format
evas_textblock_cursor_format_get (const Evas_Textblock_Cursor *cur)
 Return the format node at the position pointed by cur.
const char * evas_textblock_node_format_text_get (const Evas_Object_Textblock_Node_Format *fnode)
 Get the text format representation of the format node.
void evas_textblock_cursor_at_format_set (Evas_Textblock_Cursor *cur, const Evas_Object_Textblock_Node_Format *fmt)
 Set the cursor to point to the position of fmt.
Eina_Bool evas_textblock_cursor_format_is_visible_get (const Evas_Textblock_Cursor *cur)
 Check if the current cursor position is a visible format.
Eina_Bool evas_textblock_cursor_format_next (Evas_Textblock_Cursor *cur)
 Advances to the next format node.
Eina_Bool evas_textblock_cursor_format_prev (Evas_Textblock_Cursor *cur)
 Advances to the previous format node.
Eina_Bool evas_textblock_cursor_is_format (const Evas_Textblock_Cursor *cur)
 Returns true if the cursor points to a format.
Eina_Bool evas_textblock_cursor_char_next (Evas_Textblock_Cursor *cur)
 Advances 1 char forward.
Eina_Bool evas_textblock_cursor_char_prev (Evas_Textblock_Cursor *cur)
 Advances 1 char backward.
Eina_Bool evas_textblock_cursor_word_start (Evas_Textblock_Cursor *cur)
 Moves the cursor to the start of the word under the cursor.
Eina_Bool evas_textblock_cursor_word_end (Evas_Textblock_Cursor *cur)
 Moves the cursor to the end of the word under the cursor.
void evas_textblock_cursor_paragraph_char_first (Evas_Textblock_Cursor *cur)
 Go to the first char in the node the cursor is pointing on.
void evas_textblock_cursor_paragraph_char_last (Evas_Textblock_Cursor *cur)
 Go to the last char in a text node.
void evas_textblock_cursor_line_char_first (Evas_Textblock_Cursor *cur)
 Go to the start of the current line.
void evas_textblock_cursor_line_char_last (Evas_Textblock_Cursor *cur)
 Go to the end of the current line.
int evas_textblock_cursor_pos_get (const Evas_Textblock_Cursor *cur)
 Return the current cursor pos.
void evas_textblock_cursor_pos_set (Evas_Textblock_Cursor *cur, int pos)
 Set the cursor pos.
Eina_Bool evas_textblock_cursor_line_set (Evas_Textblock_Cursor *cur, int line)
 Go to the start of the line passed.
int evas_textblock_cursor_compare (const Evas_Textblock_Cursor *cur1, const Evas_Textblock_Cursor *cur2)
 Compare two cursors.
void evas_textblock_cursor_copy (const Evas_Textblock_Cursor *cur, Evas_Textblock_Cursor *cur_dest)
 Make cur_dest point to the same place as cur.
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.
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.
Eina_Bool evas_textblock_cursor_format_append (Evas_Textblock_Cursor *cur, const char *format)
 Adds format to the current cursor position.
Eina_Bool evas_textblock_cursor_format_prepend (Evas_Textblock_Cursor *cur, const char *format)
 Adds format to the current cursor position.
void evas_textblock_cursor_char_delete (Evas_Textblock_Cursor *cur)
 Delete the character at the location of the cursor.
void evas_textblock_cursor_range_delete (Evas_Textblock_Cursor *cur1, Evas_Textblock_Cursor *cur2)
 Delete the range between cur1 and cur2.
const char * evas_textblock_cursor_paragraph_text_get (const Evas_Textblock_Cursor *cur)
 Return the text of the paragraph cur points to - returns the text in markup.
int evas_textblock_cursor_paragraph_text_length_get (const Evas_Textblock_Cursor *cur)
 Return the length of the paragraph, cheaper the eina_unicode_strlen()
Eina_Bool evas_textblock_cursor_visible_range_get (Evas_Textblock_Cursor *start, Evas_Textblock_Cursor *end)
 Return the currently visible range.
Eina_List * evas_textblock_cursor_range_formats_get (const Evas_Textblock_Cursor *cur1, const Evas_Textblock_Cursor *cur2)
 Return the format nodes in the range between cur1 and cur2.
char * evas_textblock_cursor_range_text_get (const Evas_Textblock_Cursor *cur1, const Evas_Textblock_Cursor *cur2, Evas_Textblock_Text_Type format)
 Return the text in the range between cur1 and cur2.
char * evas_textblock_cursor_content_get (const Evas_Textblock_Cursor *cur)
 Return the content of the cursor.
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.
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.
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.
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.
Eina_Bool evas_textblock_cursor_char_coord_set (Evas_Textblock_Cursor *cur, Evas_Coord x, Evas_Coord y)
 Set the position of the cursor according to the X and Y coordinates.
int evas_textblock_cursor_line_coord_set (Evas_Textblock_Cursor *cur, Evas_Coord y)
 Set the cursor position according to the y coord.
Eina_List * evas_textblock_cursor_range_geometry_get (const Evas_Textblock_Cursor *cur1, const Evas_Textblock_Cursor *cur2)
 Get the geometry of a range.
Eina_Bool evas_textblock_cursor_eol_get (const Evas_Textblock_Cursor *cur)
 Checks if the cursor points to the end of the line.
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)
 Get the geometry of a line number.
void evas_object_textblock_clear (Evas_Object *obj)
 Clear the textblock object.
void evas_object_textblock_size_formatted_get (const Evas_Object *obj, Evas_Coord *w, Evas_Coord *h)
 Get the formatted width and height.
void evas_object_textblock_size_native_get (const Evas_Object *obj, Evas_Coord *w, Evas_Coord *h)
 Get the native width and height.

Detailed Description

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 .

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".
  • backing_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 - "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".
  • 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.
Todo:
put here some usage examples

Function Documentation

Adds a textblock to the given evas.

Parameters:
eThe given evas.
Returns:
The new textblock object.

Gets the BiDi delimiters used in the textblock.

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

Parameters:
objThe given textblock object.
Returns:
A null terminated string of delimiters, e.g ",|". If empty, returns NULL.
Since:
1.1.0
void evas_object_textblock_bidi_delimiters_set ( Evas_Object obj,
const char *  delim 
)

Sets the BiDi delimiters used in the textblock.

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

Parameters:
objThe given textblock object.
delimA null terminated string of delimiters, e.g ",|".
Since:
1.1.0

Clear the textblock object.

Note:
Does *NOT* free the Evas object itself.
Parameters:
objthe object to clear.
Returns:
nothing.
Evas_Textblock_Cursor* evas_object_textblock_cursor_get ( const Evas_Object obj)

Return the object's main cursor.

Parameters:
objthe object.
Returns:
The obj's main cursor.
Evas_Textblock_Cursor* evas_object_textblock_cursor_new ( const Evas_Object obj)

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 object to associate to.
Returns:
the new cursor.

Gets newline mode.

When true, newline character behaves as a paragraph separator.

Parameters:
objThe given textblock object.
Returns:
EINA_TRUE if in legacy mode, EINA_FALSE otherwise.
Since:
1.1.0
void evas_object_textblock_legacy_newline_set ( Evas_Object obj,
Eina_Bool  mode 
)

Sets newline mode.

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

Parameters:
objThe given textblock object.
modeEINA_TRUE for legacy mode, EINA_FALSE otherwise.
Since:
1.1.0
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 
)

Get the geometry of a line number.

Parameters:
objthe object.
linethe line number.
cxx coord of the line.
cyy coord of the line.
cww coord of the line.
chh coord of the line.
Returns:
EINA_TRUE on success, EINA_FALSE otherwise.

Get the "replacement character" for given textblock object.

Returns NULL if no replacement character is in use.

Parameters:
objThe given textblock object
Returns:
Replacement character or NULL.
void evas_object_textblock_replace_char_set ( Evas_Object obj,
const char *  ch 
)

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

Parameters:
objThe given textblock object.
chThe charset name.
void evas_object_textblock_size_formatted_get ( const Evas_Object obj,
Evas_Coord *  w,
Evas_Coord *  h 
)

Get 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:
objthe Evas object.
wthe width of the object.
hthe height of the object
Returns:
Returns no value.
See also:
evas_object_textblock_size_native_get
void evas_object_textblock_size_native_get ( const Evas_Object obj,
Evas_Coord *  w,
Evas_Coord *  h 
)

Get 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:
objthe Evas object of the textblock
wthe width returned
hthe height returned
Returns:
Returns no value.
const Evas_Textblock_Style* evas_object_textblock_style_get ( const Evas_Object obj)

Return the style of an object.

Parameters:
objthe object to get the style from.
Returns:
the style of the object.

Referenced by evas_textblock_text_markup_to_utf8().

void evas_object_textblock_style_set ( Evas_Object obj,
Evas_Textblock_Style *  ts 
)

Set the objects style to ts.

Parameters:
objthe Evas object to set the style to.
tsthe style to set.
Returns:
Returns no value.
const Evas_Textblock_Style* evas_object_textblock_style_user_peek ( const Evas_Object obj)

Get (don't remove) the style at the top of the user style stack.

Parameters:
objthe object to get the style from.
Returns:
the style of the object.
See also:
evas_object_textblock_style_get
Since:
1.2.0

Del the from the top of the user style stack.

Parameters:
objthe object to get the style from.
See also:
evas_object_textblock_style_get
Since:
1.2.0
void evas_object_textblock_style_user_push ( Evas_Object obj,
Evas_Textblock_Style *  ts 
)

Push 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 Evas object to set the style to.
tsthe style to set.
Returns:
Returns no value.
See also:
evas_object_textblock_style_set
Since:
1.2.0
const char* evas_object_textblock_text_markup_get ( const Evas_Object obj)

Return the markup of the object.

Parameters:
objthe Evas object.
Returns:
the markup text of the object.
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.

References evas_textblock_cursor_format_prepend().

Referenced by evas_object_textblock_text_markup_set().

void evas_object_textblock_text_markup_set ( Evas_Object obj,
const char *  text 
)

Sets the tetxblock's text to the markup text.

Note:
assumes text does not include the unicode object replacement char (0xFFFC)
Parameters:
objthe textblock object.
textthe markup text to use.
Returns:
Return no value.

References evas_object_textblock_text_markup_prepend(), and evas_textblock_cursor_paragraph_first().

Gets the vertical alignment of a textblock.

Parameters:
objThe given textblock object.
Returns:
The alignment set for the object.
Since:
1.1.0
void evas_object_textblock_valign_set ( Evas_Object obj,
double  align 
)

Sets 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:
objThe given textblock object.
alignA value between 0.0 and 1.0.
Since:
1.1.0
void evas_textblock_cursor_at_format_set ( Evas_Textblock_Cursor *  cur,
const Evas_Object_Textblock_Node_Format fmt 
)

Set the cursor to point to the position of fmt.

Parameters:
curthe cursor to update
fmtthe format to update according to.

Referenced by evas_textblock_cursor_set_at_format(), and evas_textblock_node_format_remove_pair().

Eina_Bool evas_textblock_cursor_char_coord_set ( Evas_Textblock_Cursor *  cur,
Evas_Coord  x,
Evas_Coord  y 
)

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

Parameters:
curthe cursor to set.
xcoord to set by.
ycoord to set by.
Returns:
EINA_TRUE on success, EINA_FALSE otherwise.

References evas_textblock_cursor_line_char_first(), evas_textblock_cursor_line_char_last(), evas_textblock_cursor_paragraph_first(), and evas_textblock_cursor_paragraph_last().

void evas_textblock_cursor_char_delete ( Evas_Textblock_Cursor *  cur)

Delete the character at the location of the cursor.

If there's a format pointing to this position, delete it as well.

Parameters:
curthe cursor pointing to the current location.
Returns:
Returns no value.
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.
Eina_Bool evas_textblock_cursor_char_next ( Evas_Textblock_Cursor *  cur)

Advances 1 char forward.

Parameters:
curthe cursor to advance.
Returns:
EINA_TRUE on success EINA_FALSE otherwise.

References evas_textblock_cursor_paragraph_next().

Referenced by evas_textblock_cursor_format_prepend().

Eina_Bool evas_textblock_cursor_char_prev ( Evas_Textblock_Cursor *  cur)

Advances 1 char backward.

Parameters:
curthe cursor to advance.
Returns:
EINA_TRUE on success EINA_FALSE otherwise.

References evas_textblock_cursor_paragraph_prev().

Referenced by evas_textblock_cursor_geometry_get().

int evas_textblock_cursor_compare ( const Evas_Textblock_Cursor *  cur1,
const Evas_Textblock_Cursor *  cur2 
)

Compare two cursors.

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

Referenced by evas_textblock_cursor_range_delete(), evas_textblock_cursor_range_formats_get(), and evas_textblock_cursor_range_geometry_get().

char* evas_textblock_cursor_content_get ( const Evas_Textblock_Cursor *  cur)

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).

References evas_textblock_cursor_format_get(), and evas_textblock_cursor_format_is_visible_get().

void evas_textblock_cursor_copy ( const Evas_Textblock_Cursor *  cur,
Evas_Textblock_Cursor *  cur_dest 
)

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.

Referenced by evas_textblock_cursor_eol_get(), evas_textblock_cursor_geometry_get(), and evas_textblock_cursor_range_delete().

Eina_Bool evas_textblock_cursor_eol_get ( const Evas_Textblock_Cursor *  cur)

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

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

References evas_textblock_cursor_copy(), and evas_textblock_cursor_line_char_last().

Eina_Bool evas_textblock_cursor_format_append ( Evas_Textblock_Cursor *  cur,
const char *  format 
)

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.

References evas_textblock_cursor_format_is_visible_get(), and evas_textblock_cursor_text_prepend().

Referenced by evas_textblock_cursor_format_prepend().

const Evas_Object_Textblock_Node_Format* evas_textblock_cursor_format_get ( const Evas_Textblock_Cursor *  cur)

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()

Referenced by evas_textblock_cursor_content_get(), and evas_textblock_cursor_format_prev().

Eina_Bool evas_textblock_cursor_format_is_visible_get ( const Evas_Textblock_Cursor *  cur)

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()

References evas_textblock_cursor_is_format().

Referenced by evas_textblock_cursor_content_get(), evas_textblock_cursor_format_append(), and evas_textblock_cursor_text_append().

Eina_Bool evas_textblock_cursor_format_next ( Evas_Textblock_Cursor *  cur)

Advances to the next format node.

Parameters:
curthe cursor to be updated.
Returns:
EINA_TRUE on success EINA_FALSE otherwise.
Eina_Bool evas_textblock_cursor_format_prepend ( Evas_Textblock_Cursor *  cur,
const char *  format 
)

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()

References evas_textblock_cursor_char_next(), and evas_textblock_cursor_format_append().

Referenced by evas_object_textblock_text_markup_prepend().

Eina_Bool evas_textblock_cursor_format_prev ( Evas_Textblock_Cursor *  cur)

Advances to the previous format node.

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

References evas_textblock_cursor_format_get().

void evas_textblock_cursor_free ( Evas_Textblock_Cursor *  cur)

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.
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.

References evas_textblock_cursor_char_prev(), evas_textblock_cursor_copy(), and evas_textblock_cursor_pen_geometry_get().

Eina_Bool evas_textblock_cursor_is_format ( const Evas_Textblock_Cursor *  cur)

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.

Referenced by evas_textblock_cursor_format_is_visible_get().

void evas_textblock_cursor_line_char_first ( Evas_Textblock_Cursor *  cur)

Go to the start of the current line.

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

Referenced by evas_textblock_cursor_char_coord_set().

void evas_textblock_cursor_line_char_last ( Evas_Textblock_Cursor *  cur)

Go to the end of the current line.

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

Referenced by evas_textblock_cursor_char_coord_set(), evas_textblock_cursor_eol_get(), and evas_textblock_cursor_visible_range_get().

int evas_textblock_cursor_line_coord_set ( Evas_Textblock_Cursor *  cur,
Evas_Coord  y 
)

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.

References evas_textblock_cursor_line_set(), evas_textblock_cursor_paragraph_first(), and evas_textblock_cursor_paragraph_last().

Referenced by evas_textblock_cursor_visible_range_get().

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.
Eina_Bool evas_textblock_cursor_line_set ( Evas_Textblock_Cursor *  cur,
int  line 
)

Go to the start of the line passed.

Parameters:
curcursor to update.
linenumer to set.
Returns:
EINA_TRUE on success, EINA_FALSE on error.

Referenced by evas_textblock_cursor_line_coord_set().

void evas_textblock_cursor_paragraph_char_first ( Evas_Textblock_Cursor *  cur)

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

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

Referenced by evas_textblock_cursor_paragraph_text_get().

void evas_textblock_cursor_paragraph_char_last ( Evas_Textblock_Cursor *  cur)

Go to the last char in a text node.

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

Referenced by evas_textblock_cursor_paragraph_last(), evas_textblock_cursor_paragraph_prev(), and evas_textblock_cursor_paragraph_text_get().

void evas_textblock_cursor_paragraph_first ( Evas_Textblock_Cursor *  cur)

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

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

Referenced by evas_object_textblock_text_markup_set(), evas_textblock_cursor_char_coord_set(), and evas_textblock_cursor_line_coord_set().

void evas_textblock_cursor_paragraph_last ( Evas_Textblock_Cursor *  cur)

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

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

References evas_textblock_cursor_paragraph_char_last().

Referenced by evas_textblock_cursor_char_coord_set(), and evas_textblock_cursor_line_coord_set().

Eina_Bool evas_textblock_cursor_paragraph_next ( Evas_Textblock_Cursor *  cur)

Advances to the start of the next text node.

Parameters:
curthe cursor to update
Returns:
EINA_TRUE if it managed to advance a paragraph, EINA_FALSE otherwise.

Referenced by evas_textblock_cursor_char_next().

Eina_Bool evas_textblock_cursor_paragraph_prev ( Evas_Textblock_Cursor *  cur)

Advances to the end of the previous text node.

Parameters:
curthe cursor to update
Returns:
EINA_TRUE if it managed to advance a paragraph, EINA_FALSE otherwise.

References evas_textblock_cursor_paragraph_char_last().

Referenced by evas_textblock_cursor_char_prev().

const char* evas_textblock_cursor_paragraph_text_get ( const Evas_Textblock_Cursor *  cur)

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.

References evas_textblock_cursor_paragraph_char_first(), evas_textblock_cursor_paragraph_char_last(), and evas_textblock_cursor_range_text_get().

int evas_textblock_cursor_paragraph_text_length_get ( const Evas_Textblock_Cursor *  cur)

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.
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.

Referenced by evas_textblock_cursor_geometry_get().

int evas_textblock_cursor_pos_get ( const Evas_Textblock_Cursor *  cur)

Return the current cursor pos.

Parameters:
curthe cursor to take the position from.
Returns:
the position or -1 on error
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.
void evas_textblock_cursor_range_delete ( Evas_Textblock_Cursor *  cur1,
Evas_Textblock_Cursor *  cur2 
)

Delete the range between cur1 and cur2.

Parameters:
cur1one side of the range.
cur2the second side of the range
Returns:
Returns no value.

References evas_textblock_cursor_compare(), and evas_textblock_cursor_copy().

Eina_List* evas_textblock_cursor_range_formats_get ( const Evas_Textblock_Cursor *  cur1,
const Evas_Textblock_Cursor *  cur2 
)

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:
1.1.0

References evas_textblock_cursor_compare().

Eina_List* evas_textblock_cursor_range_geometry_get ( const Evas_Textblock_Cursor *  cur1,
const Evas_Textblock_Cursor *  cur2 
)

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.

References evas_textblock_cursor_compare().

char* evas_textblock_cursor_range_text_get ( const Evas_Textblock_Cursor *  cur1,
const Evas_Textblock_Cursor *  cur2,
Evas_Textblock_Text_Type  format 
)

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()

Referenced by evas_textblock_cursor_paragraph_text_get().

void evas_textblock_cursor_set_at_format ( Evas_Textblock_Cursor *  cur,
const Evas_Object_Textblock_Node_Format n 
)

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

References evas_textblock_cursor_at_format_set().

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()

References evas_textblock_cursor_format_is_visible_get().

Referenced by evas_textblock_cursor_text_prepend().

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()

References evas_textblock_cursor_text_append().

Referenced by evas_textblock_cursor_format_append().

Eina_Bool evas_textblock_cursor_visible_range_get ( Evas_Textblock_Cursor *  start,
Evas_Textblock_Cursor *  end 
)

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:
1.1.0

References evas_object_evas_get(), evas_textblock_cursor_line_char_last(), and evas_textblock_cursor_line_coord_set().

Eina_Bool evas_textblock_cursor_word_end ( Evas_Textblock_Cursor *  cur)

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

Parameters:
curthe cursor to move.
Returns:
EINA_TRUE on success EINA_FALSE otherwise.
Since:
1.2.0
Eina_Bool evas_textblock_cursor_word_start ( Evas_Textblock_Cursor *  cur)

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

Parameters:
curthe cursor to move.
Returns:
EINA_TRUE on success EINA_FALSE otherwise.
Since:
1.2.0
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
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

Returns the first format node.

Parameters:
objThe evas, must not be NULL.
Returns:
Returns the first format node, may be null if there are none.

Returns the last format node.

Parameters:
objThe evas textblock, must not be NULL.
Returns:
Returns the first format node, may be null if there are none.
const Eina_List* evas_textblock_node_format_list_get ( const Evas_Object obj,
const char *  anchor 
)

Returns the.

Parameters:
objThe evas, must not be NULL.
anchorthe anchor name to get
Returns:
Returns the list format node corresponding to the anchor, may be null if there are none.

Returns the next format node (after n)

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

Returns the prev format node (after n)

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

Remove a format node and it's match.

i.e, removes a <tag> </tag> pair. Assumes the node is the first part of <tag> i.e, this won't work if n is a closing tag.

Parameters:
objthe Evas object of the textblock - not null.
nthe current format node - not null.

References evas_textblock_cursor_at_format_set().

Get the text format representation of the format node.

Parameters:
fnodethe format node.
Returns:
the textual format of the format node.
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.
void evas_textblock_style_free ( Evas_Textblock_Style *  ts)

Destroys a textblock style.

Parameters:
tsThe textblock style to free.
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.
Evas_Textblock_Style* evas_textblock_style_new ( void  )

Creates a new textblock style.

Returns:
The new textblock style.
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.
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:
1.2.0

References evas_object_textblock_style_get().

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 markup text (if NULL, return NULL).
Returns:
An allocated plain text version of the markup.
Since:
1.2.0

References evas_string_char_next_get().