AppleWin/source/Keyboard.cpp
2018-06-02 22:26:29 +01:00

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/*
AppleWin : An Apple //e emulator for Windows
Copyright (C) 1994-1996, Michael O'Brien
Copyright (C) 1999-2001, Oliver Schmidt
Copyright (C) 2002-2005, Tom Charlesworth
Copyright (C) 2006-2007, Tom Charlesworth, Michael Pohoreski
AppleWin is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
AppleWin is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with AppleWin; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* Description: Keyboard emulation
*
* Author: Various
*/
#include "StdAfx.h"
#include "Applewin.h"
#include "Frame.h"
#include "Keyboard.h"
#include "Pravets.h"
#include "Tape.h"
#include "YamlHelper.h"
#include "Video.h" // Needed by TK3000 //e, to refresh the frame at each |Mode| change
static BYTE asciicode[2][10] = {
{0x08,0x0D,0x15,0x2F,0x00,0x00,0x00,0x00,0x00,0x00},
{0x08,0x0B,0x15,0x0A,0x00,0x00,0x00,0x00,0x00,0x7F}
}; // Convert PC arrow keys to Apple keycodes
bool g_bShiftKey = false;
bool g_bCtrlKey = false;
bool g_bAltKey = false;
static bool g_bTK3KModeKey = false; //TK3000 //e |Mode| key
static bool g_bCapsLock = true; //Caps lock key for Apple2 and Lat/Cyr lock for Pravets8
static bool g_bP8CapsLock = true; //Caps lock key of Pravets 8A/C
static int lastvirtkey = 0; // Current PC keycode
static BYTE keycode = 0; // Current Apple keycode
static BOOL keywaiting = 0;
static BYTE g_nLastKey = 0x00;
//
// ----- ALL GLOBALLY ACCESSIBLE FUNCTIONS ARE BELOW THIS LINE -----
//
//===========================================================================
void KeybReset()
{
keywaiting = 0;
}
//===========================================================================
bool KeybGetAltStatus ()
{
return g_bAltKey;
}
//===========================================================================
bool KeybGetCapsStatus ()
{
return g_bCapsLock;
}
//===========================================================================
bool KeybGetP8CapsStatus()
{
return g_bP8CapsLock;
}
//===========================================================================
/*
bool KeybGetCapsAllowed() //For Pravets 8A/C only
{
return g_CapsLockAllowed;
}
*/
//===========================================================================
bool KeybGetCtrlStatus ()
{
return g_bCtrlKey;
}
//===========================================================================
bool KeybGetShiftStatus ()
{
return g_bShiftKey;
}
//===========================================================================
void KeybUpdateCtrlShiftStatus()
{
g_bShiftKey = (GetKeyState( VK_SHIFT ) & KF_UP) ? true : false; // 0x8000 KF_UP
g_bCtrlKey = (GetKeyState( VK_CONTROL) & KF_UP) ? true : false;
g_bAltKey = (GetKeyState( VK_MENU ) & KF_UP) ? true : false;
}
//===========================================================================
BYTE KeybGetKeycode () // Used by MemCheckPaging() & VideoCheckMode()
{
return keycode;
}
//===========================================================================
void KeybQueueKeypress (int key, BOOL bASCII)
{
if (bASCII == ASCII) // WM_CHAR
{
if (g_bFreshReset && key == VK_CANCEL) // OLD HACK: 0x03
{
g_bFreshReset = false;
return; // Swallow spurious CTRL-C caused by CTRL-BREAK
}
g_bFreshReset = false;
if ((key > 0x7F) && !g_bTK3KModeKey) // When in TK3000 mode, we have special keys which need remapping
return;
if (!IS_APPLE2)
{
P8Shift = false;
if (g_bCapsLock && (key >= 'a') && (key <='z'))
{
P8Shift = true;
keycode = key - 32;
}
else
{
keycode = key;
}
//The latter line should be applied for Pravtes 8A/C only, but not for Pravets 82/M !!!
if ((g_bCapsLock == false) && (key >= 'A') && (key <='Z'))
{
P8Shift = true;
if (g_Apple2Type == A2TYPE_PRAVETS8A)
keycode = key + 32;
}
//Remap some keys for Pravets82/M
if (g_Apple2Type == A2TYPE_PRAVETS82)
{
if (key == 64)
keycode = 96;
if (key == '^')
keycode = '~';
if (g_bCapsLock == false) //cyrillic letters
{
if (key == '`') keycode = '^';
if (key == 92) keycode = '@'; // \ to @
if (key == 124) keycode = 92;
}
else //(g_bCapsLock == true) //latin letters
{
if (key == 91) keycode = 123;
if (key == 93) keycode = 125;
if (key == 124) keycode = 92;
}
}
if (g_Apple2Type == A2TYPE_PRAVETS8M) //Pravets 8M charset is still uncertain
{
if (g_bCapsLock == false) //cyrillic letters
{
if (key == '[') keycode = '{';
if (key == ']') keycode = '}';
if (key == '`') keycode = '~'; //96= key `~
if (key == 92) keycode = 96;
}
else //latin letters
{
if (key == '`')
keycode = '^'; //96= key `~
}
}
//Remap some keys for Pravets8A/C, which has a different charset for Pravtes82/M, whose keys MUST NOT be remapped.
if (g_Apple2Type == A2TYPE_PRAVETS8A) //&& (g_bCapsLock == false))
{
if (g_bCapsLock == false) //i.e. cyrillic letters
{
if (key == '[') keycode = '{';
if (key == ']') keycode = '}';
if (key == '`') keycode = '~';
if (key == 92) keycode = 96;
if (GetCapsLockAllowed() == true)
{
if ((key == 92) || (key == 124)) keycode = 96; //<2F> to <20>
//This shall be rewriten, so that enabling CAPS_LOCK (i.e. F10) will not invert these keys values)
//The same for latin letters.
if ((key == '{') || (key == '}') || (key == '~') || (key == 124) || (key == '^') || (key == 95))
P8Shift = true;
}
}
else //i.e. latin letters
{
if (GetCapsLockAllowed() == false)
{
if (key == '{') keycode = '[';
if (key == '}') keycode = ']';
if (key == 124)
keycode = 92;
/*if (key == 92)
keycode = 124;*/
//Characters ` and ~ cannot be generated in 7bit character mode, so they are replaced with
}
else
{
if (key == '{') keycode = 91;
if (key == '}') keycode = 93;
if (key == 124) keycode = 92;
if ((key == '[') || (key == ']') || (key == 92) || (key == '^') || (key == 95))
P8Shift= true;
if (key == 96) //This line shall generate sth. else i.e. ` In fact. this character is not generateable by the pravets keyboard.
{
keycode = '^';
P8Shift= true;
}
if (key == 126) keycode = '^';
}
}
}
// Remap for the TK3000 //e, which had a special |Mode| key for displaying accented chars on screen
// Borrowed from F<>bio Belavenuto's TK3000e emulator (Copyright (C) 2004) - http://code.google.com/p/tk3000e/
if (g_bTK3KModeKey) // We already switch this on only if the the TK3000 is currently being emulated
{
if ((key >= 0xC0) && (key <= 0xDA)) key += 0x20; // Convert uppercase to lowercase
switch (key)
{
case 0xE0: key = '_'; break; // <20>
case 0xE1: key = '@'; break; // <20>
case 0xE2: key = '\\'; break; // <20>
case 0xE3: key = '['; break; // <20>
case 0xE7: key = ']'; break; // <20>
case 0xE9: key = '`'; break; // <20>
case 0xEA: key = '&'; break; // <20>
case 0xED: key = '{'; break; // <20>
case 0xF3: key = '~'; break; // <20>
case 0xF4: key = '}'; break; // <20>
case 0xF5: key = '#'; break; // <20>
case 0xFA: key = '|'; break; // <20>
}
if (key > 0x7F) return; // Get out
if ((key >= 'a') && (key <= 'z') && (g_bCapsLock))
keycode = key - ('a'-'A');
else
keycode = key;
}
}
else
{
if (g_Apple2Type == A2TYPE_PRAVETS8A)
{
}
else
{
if (key >= '`')
keycode = key - 32;
else
keycode = key;
}
}
lastvirtkey = LOBYTE(VkKeyScan(key));
}
else //(bASCII != ASCII) // WM_KEYDOWN
{
// Note: VK_CANCEL is Control-Break
if ((key == VK_CANCEL) && (GetKeyState(VK_CONTROL) < 0))
{
g_bFreshReset = true;
CtrlReset();
return;
}
if ((key == VK_INSERT) && (GetKeyState(VK_SHIFT) < 0))
{
// Shift+Insert
ClipboardInitiatePaste();
return;
}
if (key == VK_SCROLL)
{ // For the TK3000 //e we use Scroll Lock to switch between Apple ][ and accented chars modes
if (g_Apple2Type == A2TYPE_TK30002E)
{
g_bTK3KModeKey = (GetKeyState(VK_SCROLL) & 1) ? true : false; // Sync with the Scroll Lock status
FrameRefreshStatus(DRAW_LEDS); // TODO: Implement |Mode| LED in the UI; make it appear only when in TK3000 mode
VideoRedrawScreen(); // TODO: Still need to implement page mode switching and 'whatnot'
}
}
if (!((key >= VK_LEFT) && (key <= VK_DELETE) && asciicode[IS_APPLE2 ? 0 : 1][key - VK_LEFT]))
return;
keycode = asciicode[IS_APPLE2 ? 0 : 1][key - VK_LEFT]; // Convert to Apple arrow keycode
lastvirtkey = key;
}
keywaiting = 1;
}
//===========================================================================
static HGLOBAL hglb = NULL;
static LPTSTR lptstr = NULL;
static bool g_bPasteFromClipboard = false;
static bool g_bClipboardActive = false;
void ClipboardInitiatePaste()
{
if (g_bClipboardActive)
return;
g_bPasteFromClipboard = true;
}
static void ClipboardDone()
{
if (g_bClipboardActive)
{
g_bClipboardActive = false;
GlobalUnlock(hglb);
CloseClipboard();
}
}
static void ClipboardInit()
{
ClipboardDone();
if (!IsClipboardFormatAvailable(CF_TEXT))
return;
if (!OpenClipboard(g_hFrameWindow))
return;
hglb = GetClipboardData(CF_TEXT);
if (hglb == NULL)
{
CloseClipboard();
return;
}
lptstr = (char*) GlobalLock(hglb);
if (lptstr == NULL)
{
CloseClipboard();
return;
}
g_bPasteFromClipboard = false;
g_bClipboardActive = true;
}
static char ClipboardCurrChar(bool bIncPtr)
{
char nKey;
int nInc = 1;
if((lptstr[0] == 0x0D) && (lptstr[1] == 0x0A))
{
nKey = 0x0D;
nInc = 2;
}
else
{
nKey = lptstr[0];
}
if(bIncPtr)
lptstr += nInc;
return nKey;
}
//===========================================================================
static uint64_t g_AKDFlags[4] = {0,0,0,0};
// NB. Don't need to be concerned about if numpad/cursors are used for joystick,
// since parent calls JoyProcessKey() just before this.
void KeybAnyKeyDown(UINT message, WPARAM wparam)
{
if (wparam > 255)
{
_ASSERT(0);
return;
}
if (wparam == VK_BACK ||
wparam == VK_TAB ||
wparam == VK_RETURN ||
wparam == VK_ESCAPE ||
wparam == VK_SPACE ||
(wparam >= VK_LEFT && wparam <= VK_DOWN) ||
wparam == VK_DELETE ||
(wparam >= '0' && wparam <= '9') ||
(wparam >= 'A' && wparam <= 'Z') ||
(wparam >= VK_NUMPAD0 && wparam <= VK_NUMPAD9) ||
(wparam >= VK_MULTIPLY && wparam <= VK_DIVIDE) ||
(wparam >= VK_OEM_1 && wparam <= VK_OEM_3) || // 7 in total
(wparam >= VK_OEM_4 && wparam <= VK_OEM_8) || // 5 in total
(wparam == VK_OEM_102))
{
UINT offset = wparam >> 6;
UINT bit = wparam & 0x3f;
if (message == WM_KEYDOWN)
g_AKDFlags[offset] |= (1LL<<bit);
else
g_AKDFlags[offset] &= ~(1LL<<bit);
}
}
static bool IsAKD(void)
{
return g_AKDFlags[0] || g_AKDFlags[1] || g_AKDFlags[2] || g_AKDFlags[3];
}
//===========================================================================
BYTE __stdcall KeybReadData (WORD, WORD, BYTE, BYTE, ULONG)
{
LogFileTimeUntilFirstKeyRead();
if (g_bPasteFromClipboard)
ClipboardInit();
if (g_bClipboardActive)
{
if(*lptstr == 0)
ClipboardDone();
else
return 0x80 | ClipboardCurrChar(false);
}
//
return keycode | (keywaiting ? 0x80 : 0);
}
//===========================================================================
BYTE __stdcall KeybReadFlag (WORD, WORD, BYTE, BYTE, ULONG)
{
if (g_bPasteFromClipboard)
ClipboardInit();
if (g_bClipboardActive)
{
if(*lptstr == 0)
ClipboardDone();
else
return 0x80 | ClipboardCurrChar(true);
}
//
keywaiting = 0;
if (IS_APPLE2) // Include Pravets machines too?
return keycode;
// AKD
return keycode | (IsAKD() ? 0x80 : 0);
}
//===========================================================================
void KeybToggleCapsLock ()
{
if (!IS_APPLE2)
{
g_bCapsLock = (GetKeyState(VK_CAPITAL) & 1);
FrameRefreshStatus(DRAW_LEDS);
}
}
//===========================================================================
void KeybToggleP8ACapsLock ()
{
_ASSERT(g_Apple2Type == A2TYPE_PRAVETS8A);
P8CAPS_ON = !P8CAPS_ON;
FrameRefreshStatus(DRAW_LEDS);
// g_bP8CapsLock= g_bP8CapsLock?false:true; //The same as the upper, but slower
}
//===========================================================================
void KeybSetSnapshot_v1(const BYTE LastKey)
{
g_nLastKey = LastKey;
}
//
#define SS_YAML_KEY_LASTKEY "Last Key"
static std::string KeybGetSnapshotStructName(void)
{
static const std::string name("Keyboard");
return name;
}
void KeybSaveSnapshot(YamlSaveHelper& yamlSaveHelper)
{
YamlSaveHelper::Label state(yamlSaveHelper, "%s:\n", KeybGetSnapshotStructName().c_str());
yamlSaveHelper.SaveHexUint8(SS_YAML_KEY_LASTKEY, g_nLastKey);
}
void KeybLoadSnapshot(YamlLoadHelper& yamlLoadHelper)
{
if (!yamlLoadHelper.GetSubMap(KeybGetSnapshotStructName()))
return;
g_nLastKey = (BYTE) yamlLoadHelper.LoadUint(SS_YAML_KEY_LASTKEY);
yamlLoadHelper.PopMap();
}