Package bluej.extensions2.editor

Class TextLocation

  • public class TextLocation
extends java.lang.Object
    A TextLocation object groups two pieces of information: a line number and a column number. They represent a position in the editor's text. A text location represents the gap to the left of the position identified, so that (0, 0) is the start of the file, (0, 1) is between the first and second characters in the file, and so on. There is a TextLocation position to the right of the last character on a line. The column value of this position can be determined using JavaEditor.getLineLength(int line). When applied to a particular edited text, a TextLocation may be invalid. That is, at the time of use, it points to an area outside the text being edited.

    • Constructor Summary

      Constructors 
      Constructor Description
      TextLocation​(int line, int column)
      Creates a TextLocation representing the text position at the specified line and column.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      int getColumn()
      Returns the column of this text location.
      int getLine()
      Returns the line of this text position.
      void setColumn​(int column)
      Sets the column of this text position, leaving the line number unchanged.
      void setLine​(int line)
      Sets the line number of this text position, leaving the column unchanged.
      void setPosition​(int line, int column)
      Sets both the line number and column of this text location.
      java.lang.String toString()
      Returns a literal representation of this text location.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

    • Constructor Detail

      • TextLocation

        public TextLocation​(int line,
                    int column)
        Creates a TextLocation representing the text position at the specified line and column.
        Parameters:
        line - a line number starting from 0.
        column - a column number starting from 0.

    • Method Detail

      • setLine

        public void setLine​(int line)
        Sets the line number of this text position, leaving the column unchanged.
        Parameters:
        line - the line number starting from 0.

      • getLine

        public int getLine()
        Returns the line of this text position.

      • setColumn

        public void setColumn​(int column)
        Sets the column of this text position, leaving the line number unchanged.
        Parameters:
        column - the column number starting from 0.

      • getColumn

        public int getColumn()
        Returns the column of this text location.

      • setPosition

        public void setPosition​(int line,
                        int column)
        Sets both the line number and column of this text location.
        Parameters:
        line - a line number starting from 0.
        column - a column number starting from 0.

      • toString

        public java.lang.String toString()
        Returns a literal representation of this text location.
        Overrides:
        toString in class java.lang.Object
        Returns:
        A String object containing the literal value formatted as "line=i column=j" where i and j are respectively the line number value and the column number value of this text location.