pangomm: Pango::TabArray Class Reference

pangomm 2.56.1

Public Member Functions | Static Public Member Functions | Protected Attributes | Related Symbols | List of all members
Pango::TabArray Class Reference

A Pango::TabArray contains an array of tab stops. More...

`#include <pangomm/tabarray.h>`

## Public Member Functions
| TabArray ()
| TabArray (PangoTabArray * gobject, bool make_a_copy=true)
| TabArray (const TabArray & other)
TabArray & | operator= (const TabArray & other)
| TabArray (TabArray && other) noexcept
TabArray & | operator= (TabArray && other) noexcept
| ~TabArray () noexcept
void | swap (TabArray & other) noexcept
PangoTabArray * | gobj ()
| Provides access to the underlying C instance.
const PangoTabArray * | gobj () const
| Provides access to the underlying C instance.
PangoTabArray * | gobj_copy () const
| Provides access to the underlying C instance. The caller is responsible for freeing it. Use when directly setting fields in structs.
| TabArray (int initial_size, bool positions_in_pixels=true)
| TabArray (const Glib::ustring & text)
| Deserializes a Pango::TabArray from a string.
| operator bool () const
| Checks whether this TabArray is valid.
int | get_size () const
| Gets the number of tab stops in tab_array.
void | resize (int new_size)
| Resizes a tab array.
void | set_tab (int tab_index, TabAlign alignment, int location)
| Sets the alignment and location of a tab stop.
std::pair< TabAlign, int > | get_tab (int tab_index) const
| Gets the alignment and position of a tab stop.
std::vector< std::pair< TabAlign, int > > | get_tabs () const
| Gets an array of std::pairs containing the tab stop alignments and tab positions.
bool | get_positions_in_pixels () const
| Returns true if the tab positions are in pixels, false if they are in Pango units.
void | set_positions_in_pixels (bool positions_in_pixels=true)
| Sets whether positions in this array are specified in pixels.
Glib::ustring | to_string () const
| Serializes a Pango::TabArray to a string.
void | set_decimal_point (int tab_index, gunichar decimal_point)
| Sets the Unicode character to use as decimal point.
gunichar | get_decimal_point (int tab_index) const
| Gets the Unicode character to use as decimal point.
void | sort ()
| Utility function to ensure that the tab stops are in increasing order.

## Static Public Member Functions
static GType | get_type ()
| Get the GType for this class, for use with the underlying GObject type system.

## Protected Attributes
PangoTabArray * | gobject_

## Related Symbols
(Note that these are not member symbols.)
void | swap (TabArray & lhs, TabArray & rhs) noexcept
Pango::TabArray | wrap (PangoTabArray * object, bool take_copy=false)
| A Glib::wrap() method for this object.

## Detailed Description

A Pango::TabArray contains an array of tab stops.

Each tab stop has an alignment and a position.

## Constructor & Destructor Documentation

## ◆ TabArray() [1/6]

Pango::TabArray::TabArray | ( |  | ) |

## ◆ TabArray() [2/6]

Pango::TabArray::TabArray | ( | PangoTabArray * | gobject,
|  | bool | make_a_copy = true )
| explicit

## ◆ TabArray() [3/6]

Pango::TabArray::TabArray | ( | const TabArray & | other | ) |

## ◆ TabArray() [4/6]

Pango::TabArray::TabArray | ( | TabArray && | other | ) |
| noexcept

## ◆ ~TabArray()

Pango::TabArray::~TabArray | ( |  | ) |
| noexcept

## ◆ TabArray() [5/6]

Pango::TabArray::TabArray | ( | int | initial_size,
|  | bool | positions_in_pixels = true )
| explicit

## ◆ TabArray() [6/6]

Pango::TabArray::TabArray | ( | const Glib::ustring & | text | ) |
| explicit

Deserializes a Pango::TabArray from a string.

This is the counterpart to to_string(). See that function for details about the format.

Since pangomm 2.54

Parameters

  text | A string.

Returns
  A new Pango::TabArray.

## Member Function Documentation

## ◆ get_decimal_point()

gunichar Pango::TabArray::get_decimal_point | ( | int | tab_index | ) | const

Gets the Unicode character to use as decimal point.

This is only relevant for tabs with Pango::TabAlign::DECIMAL alignment, which align content at the first occurrence of the decimal point character.

The default value of 0 means that Pango will use the decimal point according to the current locale.

Since pangomm 2.54

Parameters

  tab_index | The index of a tab stop.

## ◆ get_positions_in_pixels()

bool Pango::TabArray::get_positions_in_pixels | ( |  | ) | const

Returns true if the tab positions are in pixels, false if they are in Pango units.

Returns
  Whether positions are in pixels.

## ◆ get_size()

int Pango::TabArray::get_size | ( |  | ) | const

Gets the number of tab stops in tab_array.

Returns
  The number of tab stops in the array.

## ◆ get_tab()

std::pair< TabAlign, int > Pango::TabArray::get_tab | ( | int | tab_index | ) | const

Gets the alignment and position of a tab stop.

Returns
  An std::pair<TabAlign, int>. The first element represents the tab stop alignment, the second one is the tab position.

## ◆ get_tabs()

std::vector< std::pair< TabAlign, int > > Pango::TabArray::get_tabs | ( |  | ) | const

Gets an array of std::pairs containing the tab stop alignments and tab positions.

Returns
  An array of std::pair<TabAlign, int>. The first element in each pair represents the tab stop alignment, the second one is the tab position.

## ◆ get_type()

GType Pango::TabArray::get_type | ( |  | ) |
| static

Get the GType for this class, for use with the underlying GObject type system.

## ◆ gobj() [1/2]

PangoTabArray * Pango::TabArray::gobj | ( |  | ) |
| inline

Provides access to the underlying C instance.

## ◆ gobj() [2/2]

const PangoTabArray * Pango::TabArray::gobj | ( |  | ) | const
| inline

Provides access to the underlying C instance.

## ◆ gobj_copy()

PangoTabArray * Pango::TabArray::gobj_copy | ( |  | ) | const

Provides access to the underlying C instance. The caller is responsible for freeing it. Use when directly setting fields in structs.

## ◆ operator bool()

Pango::TabArray::operator bool | ( |  | ) | const
| explicit

Checks whether this TabArray is valid.

Since pangomm 2.54

Returns
  true if the TabArray is valid.

## ◆ operator=() [1/2]

TabArray & Pango::TabArray::operator= | ( | const TabArray & | other | ) |

## ◆ operator=() [2/2]

TabArray & Pango::TabArray::operator= | ( | TabArray && | other | ) |
| noexcept

## ◆ resize()

void Pango::TabArray::resize | ( | int | new_size | ) |

Resizes a tab array.

You must subsequently initialize any tabs that were added as a result of growing the array.

Parameters

  new_size | New size of the array.

## ◆ set_decimal_point()

void Pango::TabArray::set_decimal_point | ( | int | tab_index,
|  | gunichar | decimal_point )

Sets the Unicode character to use as decimal point.

This is only relevant for tabs with Pango::TabAlign::DECIMAL alignment, which align content at the first occurrence of the decimal point character.

By default, Pango uses the decimal point according to the current locale.

Since pangomm 2.54

Parameters

  tab_index | The index of a tab stop.
  decimal_point | The decimal point to use.

## ◆ set_positions_in_pixels()

void Pango::TabArray::set_positions_in_pixels | ( | bool | positions_in_pixels = true | ) |

Sets whether positions in this array are specified in pixels.

Since pangomm 2.54

Parameters

  positions_in_pixels | Whether positions are in pixels.

## ◆ set_tab()

void Pango::TabArray::set_tab | ( | int | tab_index,
|  | TabAlign | alignment,
|  | int | location )

Sets the alignment and location of a tab stop.

Parameters

  tab_index | The index of a tab stop.
  alignment | Tab alignment.
  location | Tab location in Pango units.

## ◆ sort()

void Pango::TabArray::sort | ( |  | ) |

Utility function to ensure that the tab stops are in increasing order.

Since pangomm 2.54

## ◆ swap()

void Pango::TabArray::swap | ( | TabArray & | other | ) |
| noexcept

## ◆ to_string()

Glib::ustring Pango::TabArray::to_string | ( |  | ) | const

Serializes a Pango::TabArray to a string.

In the resulting string, serialized tabs are separated by newlines or commas.

Individual tabs are serialized to a string of the form

[ALIGNMENT:]POSITION[:DECIMAL_POINT]

Where ALIGNMENT is one of left, right, center or decimal, and POSITION is the position of the tab, optionally followed by the unit px. If ALIGNMENT is omitted, it defaults to left. If ALIGNMENT is decimal, the DECIMAL_POINT character may be specified as a Unicode codepoint.

Note that all tabs in the array must use the same unit.

A typical example:

100px 200px center:300px right:400px

Since pangomm 2.54

Returns
  A newly allocated string.

## Friends And Related Symbol Documentation

## ◆ swap()

void swap | ( | TabArray & | lhs,
|  | TabArray & | rhs )
| related

Parameters

  lhs | The left-hand side
  rhs | The right-hand side

## ◆ wrap()

Pango::TabArray wrap | ( | PangoTabArray * | object,
|  | bool | take_copy = false )
| related

A Glib::wrap() method for this object.

Parameters

  object | The C instance.
  take_copy | False if the result should take ownership of the C instance. True if it should take a new copy or ref.

Returns
  A C++ instance that wraps this C instance.

## Member Data Documentation

## ◆ gobject_

PangoTabArray* Pango::TabArray::gobject_
| protected