Determines whether iter
is on the last line of the layout.
Copies a PangoLayoutIter
.
Frees an iterator that's no longer in use.
Gets the Y position of the current line's baseline, in layout coordinates.
Layout coordinates have the origin at the top left of the entire layout.
Gets 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, if on the %NULL run (see [methodPango
.LayoutIter.get_run]).
Gets the current line.
Use the faster [methodPango
.LayoutIter.get_line_readonly] if
you do not plan to modify the contents of the line (glyphs,
glyph widths, etc.).
Obtains the extents of the current line.
Extents are in layout coordinates (origin is the top-left corner
of the entire PangoLayout
). Thus the extents returned by this
function will be the same width/height but not at the same x/y
as the extents returned from [methodPango
.LayoutLine.get_extents].
Gets the current line for read-only access.
This is a faster alternative to [methodPango
.LayoutIter.get_line],
but the user is not expected to modify the contents of the line
(glyphs, glyph widths, etc.).
Divides the vertical space in the PangoLayout
being iterated over
between the lines in the layout, and returns the space belonging to
the current line.
A line's range includes the line's logical extents. plus half of the
spacing above and below the line, if [methodPango
.Layout.set_spacing]
has been called to set layout spacing. The Y positions are in layout
coordinates (origin at top left of the entire layout).
Note: Since 1.44, Pango uses line heights for placing lines, and there may be gaps between the ranges returned by this function.
Gets the current run.
When iterating by run, at the end of each line, there's a position with a %NULL run, so this function can return %NULL. The %NULL run at the end of each line ensures that all lines have at least one run, even lines consisting of only a newline.
Use the faster [methodPango
.LayoutIter.get_run_readonly] if you do not
plan to modify the contents of the run (glyphs, glyph widths, etc.).
Gets the Y position of the current run's baseline, in layout coordinates.
Layout coordinates have the origin at the top left of the entire layout.
The run baseline can be different from the line baseline, for example due to superscript or subscript positioning.
Gets the current run for read-only access.
When iterating by run, at the end of each line, there's a position with a %NULL run, so this function can return %NULL. The %NULL run at the end of each line ensures that all lines have at least one run, even lines consisting of only a newline.
This is a faster alternative to [methodPango
.LayoutIter.get_run],
but the user is not expected to modify the contents of the run (glyphs,
glyph widths, etc.).
Moves iter
forward to the next character in visual order.
If iter
was already at the end of the layout, returns %FALSE.
Moves iter
forward to the next cluster in visual order.
If iter
was already at the end of the layout, returns %FALSE.
Moves iter
forward to the start of the next line.
If iter
is already on the last line, returns %FALSE.
Moves iter
forward to the next run in visual order.
If iter
was already at the end of the layout, returns %FALSE.
A
PangoLayoutIter
can be used to iterate over the visual extents of aPangoLayout
.To obtain a
PangoLayoutIter
, use [methodPango
.Layout.get_iter].The
PangoLayoutIter
structure is opaque, and has no user-visible fields.