/* returns true if deletion is allowed */
private boolean isAllowedDeletion() {
if ((org.lwjgl.input.Keyboard.getEventKey() == org.lwjgl.input.Keyboard.KEY_BACK)
&& (text.length() > 1)
&& (cursorLocation > 0)) return true;
else return false;
}
/* returns true if the users right arrow navigation is allowed */
private boolean isAllowedRightArrowNavigation() {
if (org.lwjgl.input.Keyboard.getEventKey() == org.lwjgl.input.Keyboard.KEY_RIGHT
&& cursorLocation < text.length() - 1) return true;
else return false;
}
/* returns true if the key press is the return key */
private boolean isAllowedNewLine() {
if (org.lwjgl.input.Keyboard.getEventKey() == org.lwjgl.input.Keyboard.KEY_RETURN) return true;
else return false;
}
/* returns true if the users left arrow navigation is allowed */
private boolean isAllowedLeftArrowNavigation() {
if (org.lwjgl.input.Keyboard.getEventKey() == org.lwjgl.input.Keyboard.KEY_LEFT
&& cursorLocation > 0) return true;
else return false;
}
/* returns true if pressed button is allowed for "writing" */
private boolean isAllowedCharacters() {
if ((org.lwjgl.input.Keyboard.getEventKey() != org.lwjgl.input.Keyboard.KEY_BACK)
&& (org.lwjgl.input.Keyboard.getEventKey() != org.lwjgl.input.Keyboard.KEY_LEFT)
&& (org.lwjgl.input.Keyboard.getEventKey() != org.lwjgl.input.Keyboard.KEY_RIGHT)
&& (org.lwjgl.input.Keyboard.getEventKey() != org.lwjgl.input.Keyboard.KEY_UP)
&& (org.lwjgl.input.Keyboard.getEventKey() != org.lwjgl.input.Keyboard.KEY_DOWN)
&& (org.lwjgl.input.Keyboard.getEventKey() != org.lwjgl.input.Keyboard.KEY_RSHIFT)
&& (org.lwjgl.input.Keyboard.getEventKey() != org.lwjgl.input.Keyboard.KEY_LSHIFT)
&& (org.lwjgl.input.Keyboard.getEventKey() != org.lwjgl.input.Keyboard.KEY_RCONTROL)
&& (org.lwjgl.input.Keyboard.getEventKey() != org.lwjgl.input.Keyboard.KEY_LCONTROL)
&& (org.lwjgl.input.Keyboard.getEventKey() != org.lwjgl.input.Keyboard.KEY_RMENU)
&& (org.lwjgl.input.Keyboard.getEventKey() != org.lwjgl.input.Keyboard.KEY_RMETA)
&& (org.lwjgl.input.Keyboard.getEventKey() != org.lwjgl.input.Keyboard.KEY_LMETA)
&& (org.lwjgl.input.Keyboard.getEventKey() != org.lwjgl.input.Keyboard.KEY_LMENU))
return true;
else return false;
}