LayoutLine

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Object Hierarchy:

Description:

Content:

Methods:

• public void get_extents (out Rectangle ink_rect, out Rectangle logical_rect)
  Computes the logical and ink extents of a layout line. See get_glyph_extents for details about the interpretation of the rectangles.
• public void get_pixel_extents (out Rectangle ink_rect, out Rectangle logical_rect)
  Computes the logical and ink extents of layout_line in device units. This function just calls get_extents followed by two extents_to_pixels calls, rounding ink_rect and logical_rect such that the rounded rectangles fully contain the unrounded one (that is, passes them as first argument to extents_to_pixels).
• public void get_x_ranges (int start_index, int end_index, int[] ranges)
  Gets a list of visual ranges corresponding to a given logical range. This list is not necessarily minimal - there may be consecutive ranges which are adjacent. The ranges will be sorted from left to right. The ranges are with respect to the left edge of the entire layout, not with respect to the line.
• public void index_to_x (int index_, bool trailing, out int x_pos)
  Converts an index within a line to a X position.
• public bool x_to_index (int x_pos, out int index_, out int trailing)
  Converts from x offset to the byte index of the corresponding character within the text of the layout. If x_pos is outside the line, index_ and trailing will point to the very first or very last position in the line. This determination is based on the resolved direction of the paragraph; for example, if the resolved direction is right-to-left, then an X position to the right of the line (after it) results in 0 being stored in index_ and trailing. An X position to the left of the line results in index_ pointing to the (logical) last grapheme in the line and trailing being set to the number of characters in that grapheme. The reverse is true for a left-to-right line.

Fields:

• public uint is_paragraph_start
• public weak Layout layout
• public int length
• public uint resolved_dir
• public unowned SList runs
• public int start_index