keyboard.cpp

XOSL 多操作系统管理工具 源代码 多系统引导工具

/*
 * Extended Operating System Loader (XOSL)
 * Copyright (c) 1999 by Geurt Vos
 *
 * This code is distributed under GNU General Public License (GPL)
 *
 * The full text of the license can be found in the GPL.TXT file,
 * or at http://www.gnu.org
 */

#include <newdefs.h>
#include <key.h>
#include <search.hpp>
#include <string.h>

// US keyboard layout is the default
const CKeyDesc *CKeyboard::SelectedLayout = CKeyboard::USKeyList;
//CKeyDesc *CKeyboard::Current = &CKeyboard::SelectedLayout[0];

bool CKeyboard::EnhancedSupport = false;

CKeyboard::CKeyboard()
{
}

CKeyboard::~CKeyboard()
{
}

unsigned short CKeyboard::WaitKeyStroke()
{
	if (EnhancedSupport) {
		return WaitKeyStrokeEnh();
	}
	return WaitKeyStrokeDef();
}

bool CKeyboard::KeyStrokeAvail()
{
	if (EnhancedSupport) {
		return KeyStrokeAvailEnh();
	}
	return KeyStrokeAvailDef();
}


void CKeyboard::Flush()
{
	for (; KeyStrokeAvail(); WaitKeyStroke());
}

void CKeyboard::SetEnhancedSupport(bool Status)
{
	EnhancedSupport = Status;
}

void CKeyboard::SelectLayout(TKeyLayout KeyLayout)
{
	switch (KeyLayout) {
		case enumLayoutUS:
			SelectedLayout = USKeyList; // qwerty
			break;
		case enumLayoutFrench:
			SelectedLayout = FrenchKeyList; // azerty
			break;
		default:
			break;
	}
}

void CKeyboard::GetKeyName(unsigned short KeyCode, char *KeyName)
{
	int Index;

	if ((Index = BinarySearch(SelectedLayout,KEY_COUNT,KeyCode,CKeyCodeCompare())) == -1) {
		KeyName[0] = (char)KeyCode;
		KeyName[1] = '\0';
	}
	else {
		strcpy(KeyName,SelectedLayout[Index].KeyName);
	}
}

void CKeyboard::GetShortKeyName(unsigned short KeyCode, char *KeyName)
{
	int Index;

	if ((Index = BinarySearch(SelectedLayout,KEY_COUNT,KeyCode,CKeyCodeCompare())) == -1) {
		KeyName[0] = (char)KeyCode;
		KeyName[1] = '\0';
	}
	else {
		strcpy(KeyName,SelectedLayout[Index].ShortKeyName);
	}
}

unsigned short CKeyboard::GetNewKeyCode(unsigned short KeyCode)
{
	int Index;

	if ((Index = BinarySearch(SelectedLayout,KEY_COUNT,KeyCode,CKeyCodeCompare())) == -1) {
		return KeyCode;
	}
	else {
		return SelectedLayout[Index].NewKeyCode;
	}
}

unsigned short CKeyboard::GetKeyCode(unsigned short NewKeyCode)
{
	int Index;

	if ((Index = LinearSearch(SelectedLayout,KEY_COUNT,NewKeyCode,CNewKeyCodeCompare())) == -1) {
		return NewKeyCode;
	}
	else {
		return SelectedLayout[Index].KeyCode;
	}
}
 
bool CKeyboard::IsSpecialKey(unsigned short KeyCode)
{
	int Index;

	if ((Index = BinarySearch(SelectedLayout,KEY_COUNT,KeyCode,CKeyCodeCompare())) == -1) {
		return false;
	}
	else {
		return SelectedLayout[Index].SpecialKey;
	}

}