/// <summary>
/// 把系统按键转换成终端字节序列
/// 代码参考terminal - terminalInput.cpp
/// </summary>
/// <param name="key">要转换的系统按键</param>
/// <param name="mkey">当前按下的修饰键</param>
/// <returns></returns>
public byte[] TranslateKey(VTKeys key, VTModifierKeys mkey)
{
string keyText = string.Empty;
//if (mkey == VTModifierKeys.None)
//{
// 没有按下修饰键
if (this.isVt52Mode)
{
// VT52模式下的按键转换，VT52模式下没有Application模式
if (this.IsCursorKey(key))
{
keyText = this.keymap[KeyboardMaps.CursorKeyVT52][key];
}
else
{
keyText = this.keymap[KeyboardMaps.KeypadVT52][key];
}
}
else
{
// ANSI模式下的按键转换
if (this.IsCursorKey(key))
{
// 按下的是光标键
if (this.isApplicationMode)
{
// 获取Application模式下的光标键的要发送的字节序列
keyText = this.keymap[KeyboardMaps.CursorKeyApplication][key];
}
else
{
// 获取Normal模式下的光标键的要发送的字节序列
keyText = this.keymap[KeyboardMaps.CursorKeyNormal][key];
}
}
else
{
// 按下的是其他按键
if (this.isApplicationMode)
{
keyText = this.keymap[KeyboardMaps.KeypadApplicaion][key];
}
else
{
keyText = this.keymap[KeyboardMaps.KeypadNormal][key];
}
}
}
//}
//else
//{
// // 按下了修饰键，有可能一次按了多个修饰键
//}
// 如果keyText里包含转义字符，那么解析转义字符，转义字符使用十六进制表示，用\x或者\0开头
return(Encoding.ASCII.GetBytes(keyText));
}
/// <summary>
/// 判断该按键是否是光标键就
/// </summary>
/// <returns></returns>
public bool IsCursorKey(VTKeys key)
{
return(key == VTKeys.UpArrow || key == VTKeys.DownArrow || key == VTKeys.LeftArrow || key == VTKeys.RightArrow);
}
