Method Detail

• getExtentsInk

  public Rectangle getExtentsInk()

• getExtentsLogical

  public Rectangle getExtentsLogical()

  Get a Rectangle describing the logical extents calculated for this line of rendered text.

  The x, y, and height parameters of these Rectangles are the same for each LayoutLine in a given Layout; the width will be variable (unless you have evenly justified the text, and even then last line of each paragraph will be less than the width of the others).

  Note
  It is a common mistake to assume that the origin of the Pango co-ordinate space is the top-right corner of an extents Rectangle. This is not the case; the vertical origin is at the base line.

  The showLayout() method that takes a LayoutLine starts its drawing by placing its Rectangle's origin at the current Context point. So to render consistently spaced lines of text you will need to move the Context point down by the value of the ascent (which is the negative of the y co-ordinate describing top of the rectangle from the origin):

   rect = line.getExtentsLogical();
   
   h = leftMargin;
   v = topMargin + rect.getAscent() + lineNumber * rect.getHeight();
   
   cr.moveTo(h, v);
   cr.showLayout(line);
   

  Since:

  4.0.10

• getLength

  public int getLength()

  Get the width of this LayoutLine, in characters.

  Since:

  4.0.14

• getStartIndex

  public int getStartIndex()

  Get the character position into the parent Layout that this LayoutLine begins at.

  The underlying PangoLayout and PangoLayoutLine structures work in byte widths; we convert to character offsets.

  Since:

  4.0.14