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package pad.prac1;
public class Line
{
/*
* MODE DEFINITIONS
*/
public static final int INSERT = 0;
public static final int OVERWRITE = 1;
private String line;
private int cursorPosition;
private int writeMode;
public Line()
{
line = "";
writeMode = INSERT;
cursorPosition = 1;
}
public int length()
{
return line.length();
}
public int getCursorPosition()
{
return cursorPosition;
}
public void setCursorPosition(int pos)
{
cursorPosition = pos;
}
public int getMode()
{
return writeMode;
}
public void toggleMode()
{
writeMode = 1 - writeMode;
}
public void removeCharAt(int pos)
{
if(pos >= 0)
{
if(pos == 0)
{
line = line.substring(1);
}
else if(pos == line.length()-1)
{
line = line.substring(0, line.length()-1);
}
else
{
line = line.substring(0, pos).concat(line.substring(pos+1,line.length()));
}
}
}
public void insertCharAt(char c, int pos)
{
if(pos == 0)
{
String s = "";
s += c;
line = s + line;
}
else if(pos == line.length())
{
line += c;
}
else
{
String s = "";
s += c;
line = line.substring(0, pos).concat(s).concat(line.substring(pos,line.length()));
}
}
public String toString()
{
return line;
}
}
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