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# Xfc::Gtk::TextTagTable Class Reference

A GtkTextTagTable C++ wrapper class. More...

`#include <xfc/gtk/texttag.hh>`

Inheritance diagram for Xfc::Gtk::TextTagTable:

List of all members.

## Signal Prototypes

- const TagChangedSignalType tag_changed_signal
    Tag changed signal (see signal_tag_changed()).
- const TagAddedSignalType tag_added_signal
    Tag added signal (see signal_tag_added()).
- const TagRemovedSignalType tag_removed_signal
    Tag removed signal (see signal_tag_removed()).

## Public Types

- typedef sigc::slot< void,
  TextTag & > ForeachSlot
    Signature of the callback slot to be called on each tag in the table.

## Public Member Functions

Constructors

- TextTagTable ()
    Construct a new TextTagTable with a reference count of 1 that the caller owns.
- virtual ~TextTagTable ()
    Destructor.

Accessors

- GtkTextTagTable * gtk_text_tag_table () const
    Get a pointer to the GtkTextTagTable structure.
- operator GtkTextTagTable * () const
    Conversion operator; safely converts a TextTagTable to a GtkTextTagTable pointer.
- int get_size () const
    Returns the size of the table (number of tags).
- TextTag * lookup (const String &name)
    Look up a named tag.

Methods

- void add (TextTag &tag)
    Add a tag to the table.
- void remove (TextTag &tag)
    Remove a tag from the table.
- void foreach (const ForeachSlot &each)
    Calls each on each tag in table.

Signal Proxies

- const TagChangedSignalProxy signal_tag_changed ()
    Connect to the tag_changed_signal; emitted whenever a tag property is changed.
- const TagAddedSignalProxy signal_tag_added ()
    Connect to the tag_added_signal; emitted whenever a tag is added to the table.
- const TagRemovedSignalProxy signal_tag_removed ()
    Connect to the tag_removed_signal; emitted whenever a tag is removed from the table.

## Protected Member Functions

Constructors

- TextTagTable (GtkTextTagTable *table, bool owns_reference=true)
    Construct a new TextTagTable from an existing GtkTextTagTable.

## Detailed Description

A GtkTextTagTable C++ wrapper class.

TextTags are stored in a TexTagTable. A tag table defines a set of tags that can be used together. Each buffer has one tag table associated with it; only tags from that tag table can be used with the buffer. A single tag table can be shared between multiple buffers, however.

Note: dynamically allocated objects must either be unreferenced or assigned to a smart pointer. Stack objects are automatically unreferenced when they go out of scope.

See also: the TextView Widget HOWTO and example.

## Member Typedef Documentation

typedef sigc::slot<void, TextTag&> Xfc::Gtk::TextTagTable::ForeachSlot

| Signature of the callback slot to be called on each tag in the table. Example: Method signature for ForeachSlot.
                 void method(TextTag& tag);

                 // tag: A text tag.

## Constructor & Destructor Documentation

Xfc::Gtk::TextTagTable::TextTagTable | ( | GtkTextTagTable * | table,
|  | bool | owns_reference = `true`
| ) | `[explicit, protected]`

  | Construct a new TextTagTable from an existing GtkTextTagTable. Parameters:
  | table | A pointer to a GtkTextTagTable.
  | owns_reference | Set false if the initial reference count is floating, set true if it's not.
The table can be a newly created GtkTextTagTable or an existing GtkTextTagTable (see G::Object::Object).

Xfc::Gtk::TextTagTable::TextTagTable | ( |  | ) |

| Construct a new TextTagTable with a reference count of 1 that the caller owns. The table contains no tags by default.

## Member Function Documentation

void Xfc::Gtk::TextTagTable::add | ( | TextTag & | tag | ) |

  | Add a tag to the table. Parameters:
  | tag | A TextTag.
The tag is assigned the highest priority in the table. tag must not be in a tag table already, and may not have the same name as an already-added tag.

void Xfc::Gtk::TextTagTable::foreach | ( | const ForeachSlot & | each | ) |

  | Calls each on each tag in table. Parameters:
  | each | The callback slot to call on each tag.

int Xfc::Gtk::TextTagTable::get_size | ( |  | ) | const

| Returns the size of the table (number of tags). Returns: The number of tags in the table.

TextTag* Xfc::Gtk::TextTagTable::lookup | ( | const String & | name | ) |

  | Look up a named tag. Parameters:
  | name | The name of a tag.
Returns: The tag, or null if none by that name is in the table.

void Xfc::Gtk::TextTagTable::remove | ( | TextTag & | tag | ) |

  | Remove a tag from the table. Parameters:
  | tag | A TextTag.
This will remove the table's reference to the tag, so be careful - the tag will end up destroyed if you don't have a reference to it.

## Member Data Documentation

const TagAddedSignalType Xfc::Gtk::TextTagTable::tag_added_signal`[static, protected]`

| Tag added signal (see signal_tag_added()). Calls a slot with the signature:
                 void function(TextTag& tag);
                 // tag: The tag being added to the table.

const TagChangedSignalType Xfc::Gtk::TextTagTable::tag_changed_signal`[static, protected]`

| Tag changed signal (see signal_tag_changed()). Calls a slot with the signature:
                 void function(TextTag& tag, bool size_changed);
                 // tag: The tag whose property was changed.
                 // size_changed: true if the changed property resulted in a change to the text display size.

const TagRemovedSignalType Xfc::Gtk::TextTagTable::tag_removed_signal`[static, protected]`

| Tag removed signal (see signal_tag_removed()). Calls a slot with the signature:
                 void function(TextTag& tag);
                 // tag: The tag being removed to the table.

The documentation for this class was generated from the following file:

- texttag.hh

Xfce Foundation Classes

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