我有一个 JTable,它在按下一个键时会自动开始编辑。已经输入的文本也将被删除,因此如果您开始输入,则只有您输入的内容才会得到当前值。这行得通,但我的问题是,每个键都会启动编辑,比如 capslock、numlock、esc 和类似的东西。如何从该编辑中排除所有类型的控制键,而不是一一排除?
这是我已经拥有的代码。它在与表格相关的TableCellEditor 中的方法isCellEditable 中。
// It's a keyevent, so check if it's a key that should start editing
if (anEvent instanceof KeyEvent) {
// Get the events key
int keyCode = ((KeyEvent) anEvent).getKeyCode();
char keyChar = ((KeyEvent) anEvent).getKeyChar();
// Convert character to lower case by first creating a string out of it
keyChar = ("" + keyChar).toLowerCase().charAt(0);
// F2 allowed
if (keyCode == KeyEvent.VK_F2) {
return true;
}
// Keycode is unknown so check if we can at least find the keyChar
if (keyCode == 0 && (keyChar == 'ä' || keyChar == 'ö' || keyChar == 'ü')) {
resetText = true;
return true;
}
// Control characters disallowed
if (keyCode < 32 || keyCode == KeyEvent.VK_WINDOWS
|| keyCode == KeyEvent.VK_CONTEXT_MENU || keyCode == KeyEvent.VK_SCROLL_LOCK
|| keyCode == KeyEvent.VK_NUM_LOCK || keyCode == KeyEvent.VK_META
|| (keyCode >= KeyEvent.VK_F1 && keyCode <= KeyEvent.VK_F12))
return false;
// all other keys are allowed
resetText = true;
return true;
}