pango.LayoutIter
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## pango.LayoutIter

pango.LayoutIter — an object used to iterate over the visual extents of a `pango.Layout` (new in PyGTK 2.6)

## Synopsis

    class pango.LayoutIter(gobject.GBoxed):
        def free()
        def next_char()
        def next_cluster()
        def next_line()
        def next_run()
        def at_last_line()
        def get_index()
        def get_baseline()
        def get_char_extents()
        def get_cluster_extents()
        def get_layout_extents()
        def get_line_extents()
        def get_run_extents()
        def get_line_yrange()
        def get_line()

## Ancestry

    +-- gobject.GBoxed
      +-- pango.LayoutIter

## Description

A `pango.LayoutIter` object can be used to iterate over the visual elements of a `pango.Layout`. A `pango.LayoutIter` is created using the `pango.Layout.get_iter`() method.

## Methods

### pango.LayoutIter.free

        def free()

Returns : | a new `pango.Layout` that is a copy of the layout

### Warning

This method is deprecated and should not be used since it may crash your application.

The `free`() method frees the `pango.LayoutIter` object.

### pango.LayoutIter.next_char

        def next_char()

Returns : | `TRUE` if the iter was moved.

The `next_char`() method returns `TRUE` if the `pango.LayoutIter` is moved to the next character in visual order. If the iter was already at the end of the layout this method returns `FALSE`.

### pango.LayoutIter.next_cluster

        def next_cluster()

Returns : | `TRUE` if the iter was moved.

The `next_cluster`() method returns `TRUE` if the `pango.LayoutIter` is moved to the next cluster in visual order. If the iter was already at the end of the layout this method returns `FALSE`.

### pango.LayoutIter.next_line

        def next_line()

Returns : | `TRUE` if the iter was moved.

The `next_line`() method returns `TRUE` if the `pango.LayoutIter` is moved to the next line in visual order. If the iter was already at the end of the layout this method returns `FALSE`.

### pango.LayoutIter.next_run

        def next_run()

Returns : | `TRUE` if the iter was moved.

The `next_run`() method returns `TRUE` if the `pango.LayoutIter` is moved to the next run in visual order. If the iter was already at the end of the layout this method returns `FALSE`.

### pango.LayoutIter.at_last_line

        def at_last_line()

Returns : | `TRUE` if the iter is in the last line.

The `at_last_line`() method returns `TRUE` if the `pango.LayoutIter` points to a position in the last line of the layout.

### pango.LayoutIter.get_index

        def get_index()

Returns : | the current byte index

The `get_index`() method returns the current byte index. Note that iterating forward by char moves in visual order, not logical order, so indexes may not be sequential. Also, the index may be equal to the length of the text in the layout.

### pango.LayoutIter.get_baseline

        def get_baseline()

Returns : | the baseline of the current line.

The `get_baseline`() method returns the y position of the current line's baseline, in layout coordinates (origin at top left of the entire layout).

### pango.LayoutIter.get_char_extents

        def get_char_extents()

Returns : | a 4-tuple containing the logical extents of the character at the iter position.

The `get_char_extents`() method returns a 4-tuple (x, y, width, height) containing the logical extents of the current character, in layout coordinates (origin is the top left of the entire layout). Only logical extents can sensibly be obtained for characters; ink extents make sense only down to the level of clusters.

### pango.LayoutIter.get_cluster_extents

        def get_cluster_extents()

Returns : | a 2-tuple containing containing the ink and logical extents as 4-tuples.

The `get_cluster_extents`() method returns a 2-tuple containing the ink and logical extents (as 4-tuples: x, y, width, height) of the cluster at the iter position.

### pango.LayoutIter.get_layout_extents

        def get_layout_extents()

Returns : | a 2-tuple containing containing the ink and logical extents as 4-tuples.

The `get_layout_extents`() method returns a 2-tuple containing the ink and logical extents (as 4-tuples: x, y, width, height) of the layout at the iter position.

### pango.LayoutIter.get_line_extents

        def get_line_extents()

Returns : | a 2-tuple containing containing the ink and logical extents as 4-tuples.

The `get_line_extents`() method returns a 2-tuple containing the ink and logical extents (as 4-tuples: x, y, width, height) of the line at the iter position.

### pango.LayoutIter.get_run_extents

        def get_run_extents()

Returns : | a 2-tuple containing containing the ink and logical extents as 4-tuples.

The `get_run_extents`() method returns a 2-tuple containing the ink and logical extents (as 4-tuples: x, y, width, height) of the run at the iter position.

### pango.LayoutIter.get_line_yrange

        def get_line_yrange()

Returns : | a 2-tuple containing the start and end of the layout line.

The `get_line_yrange`() method returns a 2-tuple containing the start and end y positions of the layout line. The vertical space in the `pango.Layout` associated with the iter is devided between the lines in the layout, the space belonging to the current line is returned in the 2-tuple. A line's range includes the line's logical extents, plus half of the spacing above and below the line, if the `pango.Layout.set_spacing`() method has been called to set the layout spacing. The y positions are in layout coordinates (origin at top left of the entire layout).

### pango.LayoutIter.get_line

        def get_line()

Returns : | a `pango.LayoutLine` containing the current line.

### Note

This method is available in PyGTK 2.8 and above.

The `get_line`() method returns a `pango.LayoutLine` containing the current line.

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