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Input.c
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Input.c
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/********************************************************\
|* *|
|* Program: WinVi *|
|* Author: Raphael Molle *|
|* Compiler: several *|
|* --------------------- -------------------------- *|
|* Š Copyright 1994-2012 by Raphael Molle, Berlin *|
|* Š Copyleft by GPL See file COPYING for more *|
|* info about terms of use *|
|* *|
\********************************************************/
/* revision log:
* 3-Dec-2000 first publication of source code
* 6-Dec-2000 correct cursor position after pixel 32767 with 16-bit ints
* 7-Dec-2000 appropriate handling of input factor/count overflow
* 20-Jul-2002 don't accept excape key while inserting command output
* 22-Jul-2002 use of private myassert.h
* 13-Sep-2002 +EBCDIC
* 4-Oct-2002 new positioning command CTRL('p')
* 6-Oct-2002 new file management commands CTRL('o') und CTRL('s')
* 29-Oct-2002 less processor load when showing matching parentheses
* 12-Jan-2003 help contexts added
* 7-Mar-2006 new calculation of caret dimensions
* 10-Jul-2007 added UTF-8 and UTF-16 support
* 1-Jan-2009 can now be compiled with VC++ 2008 Express
* 6-Sep-2009 fixed positioning in UTF-8/16 files
* 9-Jan-2010 Ctrl+End positioning to end of last line
* 17-Jun-2010 marker position not changed when escaping search input
*/
#include <windows.h>
#include <ctype.h>
#include <string.h>
#include <wchar.h>
#include "myassert.h"
#include "resource.h"
#include "winvi.h"
#include "page.h"
#include "paint.h" /*for XTEXT_OFFSET only*/
#include "intercom.h"
#include "status.h"
#include "toolbar.h"
extern WCHAR NumLock[], CapsLock[];
extern INT IndentChars;
extern BOOL SuppressMap, RestoreCaret, EscapeInput;
extern LONG xOffset;
MODEENUM ModeAfterTfmq;
BOOL InNumber;
WCHAR StatusCmd[40];
INT ShiftWidth = 4;
INT HexEditFirstNibble = -1;
BOOL HexEditTextSide = FALSE;
signed char CaretProps[20];
static INT PrevCaretWidth, PrevCaretHeight;
BOOL IsViewOnly(void)
{
if (!ViewOnlyFlag) return (FALSE);
Error(236);
return (TRUE);
}
#define CARET_DEBUG(msg) /*OutputDebugString(msg)*/
void HorizontalScroll(LONG MinAmount)
{ LONG i;
INT Step = 5 * AveCharWidth;
if (MinAmount >= 0) {
i = MinAmount + Step - 1;
i -= i % Step;
i = -i;
} else {
if (!xOffset) return;
i = -MinAmount + Step - 1;
i -= i % Step;
if (i > xOffset) i = xOffset;
}
if (hwndMain) {
HDC hDC;
if (CaretActive) {
HideCaret(hwndMain);
CARET_DEBUG("Hide Caret (HorizontalScrollIntoView)\n");
CaretActive = FALSE;
}
hDC = GetDC(hwndMain);
if (hDC) {
RECT r, ir;
r = ClientRect;
TextAreaOnly(&r, TRUE);
if (i < -32000 || i > 32000) ir = r;
else ScrollDC(hDC, (INT)i, 0, &r, &r, NULL, &ir);
ReleaseDC(hwndMain, hDC);
xOffset -= i;
InvalidateRect(hwndMain, &ir, TRUE);
UpdateWindow(hwndMain);
}
}
}
void HorizontalScrollIntoView(void)
{ LONG Amount = CaretX - XTEXT_OFFSET - xOffset - (ClientRect.right>>1);
if (Amount < 0) HorizontalScroll(Amount);
else {
LONG TooFar = CaretX + CaretWidth - xOffset - ClientRect.right +
GetSystemMetrics(SM_CXVSCROLL);
if (TooFar > 0) HorizontalScroll(TooFar);
}
}
BOOL HideEditCaret(void)
{
if (!CaretActive) return (FALSE);
DestroyCaret();
CARET_DEBUG("Hide & Destroy Caret (HideEditCaret)\n");
CaretActive = FALSE;
PrevCaretWidth = 0;
return (TRUE);
}
void ShowEditCaret(void)
{ BOOL HasFocus = GetFocus() == hwndMain;
INT ShowCaretWidth = CaretWidth;
INT ShowCaretHeight = CaretHeight;
INT ShowCaretX = CaretX;
INT ShowCaretY = CaretY;
signed char *ShowCaretProps = CaretProps;
if (hwndMain && HasFocus && (!Disabled || EscapeInput) && !RefreshBitmap
&& CaretWidth) {
if (Mode == InsertMode) {
ShowCaretProps += 10;
if (*ShowCaretProps == '\0')
memcpy(ShowCaretProps, "\x59\xff\2\0\0", 5);
} else if (Mode == ReplaceMode) {
ShowCaretProps += 15;
if (*ShowCaretProps == '\0')
memcpy(ShowCaretProps, "\x96\0\0\xfd\3", 5);
} else /*Mode == CommandMode*/ {
if (CaretType == COMMAND_CARET_EMPTYLINE) {
ShowCaretProps += 5;
if (*ShowCaretProps == '\0')
memcpy(ShowCaretProps, "\x97\0\0\xff\2", 5);
} else {
if (*ShowCaretProps == '\0')
memcpy(ShowCaretProps, "\x99\0\0\0\0", 5);
}
}
switch (*ShowCaretProps & 0x03) {
case 0x01:
ShowCaretY += ShowCaretProps[3];
break;
case 0x02:
ShowCaretY += ShowCaretHeight + ShowCaretProps[3];
break;
case 0x03:
ShowCaretY += (ShowCaretHeight >> 1) + ShowCaretProps[3];
break;
}
switch (*ShowCaretProps & 0x0c) {
case 0x04:
ShowCaretHeight = ShowCaretProps[4];
break;
case 0x08:
ShowCaretHeight += ShowCaretProps[4] - (ShowCaretY - CaretY);
break;
}
switch (*ShowCaretProps & 0x30) {
case 0x10:
ShowCaretX += ShowCaretProps[1];
break;
case 0x20:
ShowCaretX += ShowCaretWidth + ShowCaretProps[1];
break;
case 0x30:
ShowCaretX += (ShowCaretWidth >> 1) + ShowCaretProps[1];
break;
}
switch (*ShowCaretProps & 0xc0) {
case 0x40:
ShowCaretWidth = ShowCaretProps[2];
break;
case 0x80:
ShowCaretWidth += ShowCaretProps[2] - (ShowCaretX - CaretX);
break;
}
if (ShowCaretWidth != PrevCaretWidth
|| ShowCaretHeight != PrevCaretHeight) {
if (CaretActive) {
DestroyCaret();
CARET_DEBUG("Hide and DestroyCaret (ShowEditCaret)\n");
CaretActive = FALSE;
}
CreateCaret(hwndMain, NULL, PrevCaretWidth = ShowCaretWidth,
PrevCaretHeight = ShowCaretHeight);
CARET_DEBUG("Create Caret (ShowEditCaret)\n");
}
HorizontalScrollIntoView();
SetCaretPos((INT)(ShowCaretX-xOffset), ShowCaretY);
CARET_DEBUG("SetPos Caret (ShowEditCaret)\n");
if (!CaretActive) {
ShowCaret(hwndMain);
CARET_DEBUG("Show Caret (ShowEditCaret)\n");
CaretActive = TRUE;
}
RestoreCaret = FALSE;
}
}
void SwitchCursor(WORD wFlags)
{ static HCURSOR hTextCursor, hCurrentCursor, hDisplayCursor;
static BOOL fInTextArea, fShowingHourGlass;
HCURSOR hNewCursor = hCurrentCursor;
BOOL fForceSetting = FALSE;
hTextCursor = Mode==InsertMode ? hcurIBeam : hcurArrow;
if (wFlags & (SWC_STATUS_OR_TOOLBAR | SWC_SIZEGRIP | SWC_TEXTAREA)) {
fInTextArea = (wFlags & SWC_TEXTAREA) != 0;
if (fInTextArea) hNewCursor = hTextCursor;
else hNewCursor = wFlags & SWC_SIZEGRIP ? hcurSizeNwSe : hcurArrow;
hCurrentCursor = hNewCursor;
fForceSetting = TRUE;
} else if (wFlags & SWC_TEXTCURSOR && fInTextArea)
hCurrentCursor = hNewCursor = hTextCursor;
if (wFlags & SWC_HOURGLASS_ON) {
if (!fShowingHourGlass) {
fShowingHourGlass = TRUE;
if (!ShowCursor(TRUE)) fForceSetting = TRUE;
}
}
if (wFlags & SWC_HOURGLASS_OFF) {
if (fShowingHourGlass) {
fShowingHourGlass = FALSE;
hDisplayCursor = hcurHourGlass; /*temporary*/
ShowCursor(FALSE);
}
}
if (fShowingHourGlass) hNewCursor = hcurHourGlass;
if (fForceSetting) SetCursor(hDisplayCursor = hNewCursor);
else if (hNewCursor != hDisplayCursor) {
POINT pt;
GetCursorPos(&pt);
if (WindowFromPoint(pt) == hwndMain)
SetCursor(hDisplayCursor = hNewCursor);
}
}
void FindValidPosition(PPOSITION Pos, WORD Flags)
{ /* Flags: 1 = position may be behind last character of line (InsertMode),
* 2 = position may be behind last line of file
* 4 = suppress cursor positioning afterwards
*/
INT c = CharAt(Pos);
INT f = CharFlags(c);
if (c == C_BOM && CountBytes(Pos) == 0)
f = CharFlags(c = AdvanceAndChar(Pos));
if (f & 1) do { /*no loop, do is for break only*/
if (c == C_EOF) {
if (Flags & 2) break;
if (HexEditMode) {
GoBackAndByte(Pos);
} else {
f = CharFlags(c = GoBackAndChar(Pos));
if (!(f & 1) && Flags & 1) AdvanceAndChar(Pos);
}
}
if (f & 1 && !HexEditMode) {
if (c == '\n') {
if ((c = GoBackAndChar(Pos)) == C_EOF) break;
if (CharFlags(c) & 1 || Flags & 1) AdvanceAndChar(Pos);
break;
}
if (!(Flags&1) && CharFlags(c=GoBackAndChar(Pos)) & 1 && c!=C_EOF)
AdvanceAndChar(Pos);
}
} while (FALSE);
if (!(Flags & 4)) {
NewPosition(Pos);
GetXPos(&CurrCol);
}
}
void AdvanceToCurr(PPOSITION Pos, /*INT Line,*/ INT Flags)
{ /*Pos must point to the start of the line*/
/*Flags: 1 = position may be behind last char of line (ins/rep mode)
* 2 = hex insert mode, position between characters
*/
if (HexEditMode) {
/*currently assuming fix character font*/
HexEditTextSide = CurrCol.PixelOffset >= 62*AveCharWidth;
if (HexEditTextSide) {
/*right hand side ascii column...*/
LONG i = CurrCol.PixelOffset - (4-1);
INT Max = Flags & 2 ? 16 : 15;
if (UtfEncoding == 16) Max >>= 1;
i = i / AveCharWidth - 62;
if (i > Max) i = Max;
if (i > 0) Advance(Pos, UtfEncoding == 16 ? 2 * i : i);
} else {
/*hex display part...*/
static INT QuadPositions[16] = {
48,60,72,86, 99,111,123,137, 150,162,174,188, 201,213,225,237
};
LONG QuadCurrCol = (CurrCol.PixelOffset-(4-2)) << 2;
INT i, n = Flags & 2 ? 16 : 15 - (UtfEncoding == 16);
if (Flags & 2) QuadCurrCol += AveCharWidth << 2;
for (i=0; i<n; ++i) {
if (UtfEncoding == 16) ++i;
if (QuadCurrCol <= AveCharWidth*QuadPositions[i]) break;
Advance(Pos, UtfEncoding == 16 ? 2 : 1);
}
}
if (CharAt(Pos)==C_EOF && Mode!=InsertMode && Mode!=ReplaceMode)
GoBack(Pos, UtfEncoding == 16 ? 2 : 1);
HexEditFirstNibble = -1;
return;
}
if (CurrCol.ScreenLine) {
/*TODO: calculate continuation line*/
}
if (CurrCol.PixelOffset) {
static WCHAR Buf[8];
INT x = 0, Col = 0, c;
BOOL TooFar = FALSE;
HDC hDC;
HFONT OldFont;
hDC = GetDC(NULL);
if (!hDC) return;
if (TextFont) OldFont = SelectObject(hDC, TextFont);
c = CharAt(Pos);
while (x < CurrCol.PixelOffset) {
if (CharFlags(c) & 1) break;
if (c == '\t' && !ListFlag) {
do; while (++Col % TabStop);
x = Col * AveCharWidth;
} else {
INT n;
if (CharSet == CS_OEM) {
if (c == '\177') {
wcscpy(Buf, L"\\7F");
n = 3;
} else {
Buf[1] = c;
UnicodeConvert(Buf, Buf+1, 1);
n = 1;
}
} else {
if (CharFlags(c) & 2) {
INT i;
CHAR Buf2[4];
if (c == C_UNDEF || CharSet == CS_EBCDIC)
c = ByteAt(Pos);
if (c < ' ' && CharSet != CS_EBCDIC)
n = wsprintf(Buf2, "^%c", c + ('A'-1));
else n = wsprintf(Buf2, "\\%02X", c);
for (i = 0; i < n; ++i) Buf[i] = Buf2[i];
} else {
*Buf = c;
n = 1;
}
}
x += GetTextWidth(hDC, Buf, n);
Col += n;
}
if (x > CurrCol.PixelOffset) TooFar = TRUE;
c = AdvanceAndChar(Pos);
#if 0
// if (Pos->i==LineInfo[Line+1].Pos.i
// && Pos->p==LineInfo[Line+1].Pos.p) {
// TooFar = TRUE;
// break;
// }
#endif
}
if (TextFont && OldFont) SelectObject(hDC, OldFont);
ReleaseDC(NULL, hDC);
if (TooFar || (x && CharFlags(CharAt(Pos)) & 1 && !(Flags & 1)))
GoBackAndChar(Pos);
}
}
void CheckUtf16Lsb(void)
{
switch (AbsByte(0)) {
case 0xfe:
if (AbsByte(1) == 0xff) {
if (UtfLsbFirst) {
UtfLsbFirst = FALSE;
InvalidateText();
}
}
break;
case 0xff:
if (AbsByte(1) == 0xfe) {
if (!UtfLsbFirst) {
UtfLsbFirst = TRUE;
InvalidateText();
}
}
break;
}
}
INT QuoteCommandChar, QuoteChar;
INT TfCommandChar, TfSearchChar;
INT BracketCommandChar;
INT DblQuoteChar;
typedef struct tagREDO {
struct tagREDO FAR *Next;
WCHAR Buffer[128];
} REDO, FAR *LPREDO;
REDO RedoChain;
LONG RedoFill;
UINT RedoCount;
BYTE RedoCmd[5];
BOOL Repeating;
BOOL DoCompoundCommand(UINT Multiplier, WPARAM Character, WPARAM EnteredChar,
WORD Flags)
{ /*Flags: 1=display command in second status field
* 0x200=Position around line boundary (WrapPosFlag==TRUE)
*/
BOOL DoAdvance=FALSE, DontExtend;
COLUMN YankCol;
POSITION StartPos;
LONG Amount, PositiveAmount;
if ((Character != 'Z' || Unsafe) && IsViewOnly()) {
Mode = CommandMode;
return (FALSE);
}
if (Multiplier) {
if (Number) Number *= Multiplier;
else Number = Multiplier;
}
if (Flags & 1) {
if (InNumber && CmdFirstChar != 'Z' && EnteredChar >= ' ')
wcscat(StatusCmd, L" ");
_snwprintf(StatusCmd + wcslen(StatusCmd),
WSIZE(StatusCmd) - wcslen(StatusCmd),
EnteredChar < ' ' ? L" ^%c" : L"%c",
EnteredChar < ' ' ? EnteredChar + ('A'-1) : EnteredChar);
SetStatusCommand(StatusCmd, TRUE);
}
Flags |= 0x27;
HideEditCaret();
switch (CmdFirstChar) {
case 'c': case 'd':
case '<': case '>':
if (!Repeating) {
PSTR RedoP = RedoCmd;
RedoCount = Number;
if (DblQuoteChar) {
*RedoP++ = '"';
*RedoP++ = DblQuoteChar;
}
if (Mode == CmdGotFirstChar) {
*RedoP++ = CmdFirstChar;
*RedoP++ = Character;
} else *RedoP++ = EnteredChar;
*RedoP = '\0';
RedoFill = 0;
}
if (CmdFirstChar != 'c') {
Mode = CommandMode;
break;
}
Mode = InsertMode;
Flags |= 0x40;
break;
case 'y': Mode = CommandMode;
#if 0
// Flags |= 0x800;
#endif
break;
case '!': Mode = CommandMode;
Flags |= 0x48;
break;
case 'Z': Mode = CommandMode;
if (Character == CmdFirstChar) CommandExec(L":x");
else if (Character == 'Q') CommandExec(L":q!");
else MessageBeep(MB_ICONEXCLAMATION);
SetStatusCommand(NULL, FALSE);
ShowEditCaret();
return (Character == CmdFirstChar);
default: Mode = CommandMode;
}
DontExtend = Character==CmdFirstChar;
if (DontExtend) {
switch (CmdFirstChar) {
case 'c': case '<': case '>':
Position(1, '^', 0x403);
Character = HexEditMode && CmdFirstChar=='c' ? '\r' : '$';
break;
case 'y':
GetXPos(&YankCol);
/*FALLTHROUGH*/
default:
Position(1, '0', 0x403);
DoAdvance = TRUE;
Character = HexEditMode ? '\r' : 'j';
break;
}
}
if (!Position(Number, Character, Flags)) {
Mode = CommandMode;
MessageBeep(MB_ICONEXCLAMATION);
ShowEditCaret();
return (FALSE);
} else if (Mode != CommandMode) NewPosition(&CurrPos);
Number = 0;
Amount = PositiveAmount = RelativePosition;
StartPos = CurrPos;
if (Amount < 0) PositiveAmount = GoBack(&StartPos, -Amount);
if (CmdFirstChar!='<' && CmdFirstChar!='>' && FullRowFlag
&& !DontExtend && (CmdFirstChar=='!' || FullRowExtend)) {
INT c;
POSITION EndPos;
do ++PositiveAmount;
while (!(CharFlags(c = GoBackAndChar(&StartPos)) & 1));
if (c != C_EOF) c = AdvanceAndChar(&StartPos);
--PositiveAmount;
if (CmdFirstChar=='c') {
while (CharFlags(c) & 16) {
c = AdvanceAndChar(&StartPos);
--PositiveAmount;
}
}
EndPos = StartPos;
Advance(&EndPos, PositiveAmount);
c = CharAt(&EndPos);
while (!(CharFlags(c) & 1)) {
++PositiveAmount;
c = AdvanceAndChar(&EndPos);
}
if (CmdFirstChar!='c' && c!=C_EOF) {
if (c == C_CRLF) ++PositiveAmount;
++PositiveAmount;
}
if (CmdFirstChar=='d') DoAdvance = TRUE;
}
switch (CmdFirstChar) {
case 'c': case 'd': case '!':
GetXPos(&CurrCol);
NewPosition(&StartPos);
GetXPos(&CurrCol);
if (SelectCount) InvalidateArea(&SelectStart, SelectCount, 1);
SelectBytePos = CountBytes(&CurrPos);
SelectStart = CurrPos;
SelectCount = PositiveAmount;
StartUndoSequence();
if (CmdFirstChar != 'd') {
InvalidateArea(&SelectStart, SelectCount, 0);
CheckClipboard();
UpdateWindow(hwndMain);
if (CmdFirstChar == '!') CommandEdit('!');
} else {
InvalidateArea(&SelectStart, SelectCount, 3);
DeleteSelected(1);
if (DoAdvance) Position(1, '^', 0);
else if (!HexEditMode && CharFlags(CharAt(&CurrPos)) & 1)
Position(1, 'h', 0);
if (UtfEncoding==16 && HexEditMode && CountBytes(&CurrPos)<=2)
CheckUtf16Lsb();
StatusCmd[0] = '\0';
SetStatusCommand(NULL, FALSE);
}
SwitchCursor(SWC_TEXTCURSOR);
break;
case 'y':
Yank(&StartPos, PositiveAmount, 0);
if (DoAdvance) {
CurrCol = YankCol;
AdvanceToCurr(&CurrPos, /*CurrLine,*/ 0);
NewPosition(&CurrPos);
}
SetStatusCommand(NULL, FALSE);
break;
case '<': case '>':
StartUndoSequence();
Shift(Amount, (WORD)(CmdFirstChar=='>' ? 8 : 0));
break;
}
ShowEditCaret();
return (TRUE);
}
static BOOL IsSelected = TRUE;
UINT Multiplier;
static BOOL DeleteKey(WORD Flags)
{ /*Flags: 0x200=delete character across line boundary (WrapPosFlag==TRUE)
*/
INT Pos, Disp;
if (IsViewOnly()) return (FALSE);
if (GetKeyState(VK_SHIFT) < 0) {
if (GetKeyState(VK_CONTROL) < 0) return (FALSE);
Pos = 'h'; Disp = 'X';
} else if (GetKeyState(VK_CONTROL) < 0) {
Pos = '$'; Disp = 'D';
} else {
Pos = ' '; Disp = 'x';
}
if (SelectCount) {
if (Pos == 'h') ClipboardCut();
else GotChar('\b', 0);
} else if (Mode == InsertMode || Mode == ReplaceMode) {
INT c;
POSITION p;
SelectStart = CurrPos;
if (Pos == 'h') {
c = GoBackAndChar(&SelectStart);
if (CharFlags(c) & 1) return (FALSE);
}
SelectBytePos = CountBytes(&SelectStart);
p = SelectStart;
if (Pos == '$') {
do; while (!(CharFlags(c = CharAndAdvance(&p)) & 1));
if (c != C_EOF) GoBackAndChar(&p);
SelectCount = CountBytes(&p) - SelectBytePos;
} else if (!(CharFlags(c = CharAt(&p)) & 1) ||
Flags & 0x200 || HexEditMode)
if (c != C_EOF) {
SelectCount += 1 + (c==C_CRLF && !HexEditMode);
if (UtfEncoding)
if (UtfEncoding == 16) SelectCount <<= 1;
else {
CharAndAdvance(&p);
SelectCount = CountBytes(&p) - SelectBytePos;
}
}
if (!SelectCount) return (FALSE);
HexEditFirstNibble = -1;
IsSelected = FALSE;
GotChar('\b', 0);
IsSelected = TRUE;
} else if (Mode == CommandMode) {
CmdFirstChar = 'd';
DoCompoundCommand(Multiplier, Pos, Disp, (WORD)(Flags | (Number!=0)));
Multiplier = 0;
SetStatusCommand(NULL, FALSE);
} else GotChar(Pos, 0);
return (TRUE);
}
INT RepeatCommand;
void GotKeydown(WPARAM VirtualKey)
{ UINT Num;
INT Pos = 0;
PWSTR NewStatusString = L"";
UINT Flags = 0;
Num = InNumber ? Number : 0;
switch (VirtualKey) {
case '6': /*check for <Ctrl+6>*/
case 0xdc: /*check for <Ctrl+^> (German keyboard layout)*/
if (GetKeyState(VK_CONTROL) < 0 && GetKeyState(VK_SHIFT) >= 0) {
MSG m;
if (!PeekMessage(&m, hwndMain, WM_CHAR, WM_CHAR, PM_NOREMOVE))
GotChar(CTRL('^'), 0);
}
return;
case VK_NUMLOCK:
NewStatus(3, GetKeyState(VirtualKey)&1 ? NumLock : L"", NS_NORMAL);
return;
case VK_CAPITAL:
NewStatus(2, GetKeyState(VirtualKey)&1 ? CapsLock : L"", NS_NORMAL);
return;
case VK_TAB:
if (GetKeyState(VK_CONTROL) < 0) GotChar('\t', 0);
return;
case VK_F2:
if (GetKeyState(VK_SHIFT) >= 0) New(hwndMain, TRUE);
else ArgsCmd();
break;
case VK_F3:
if (InNumber) SetStatusCommand(NULL, FALSE);
SearchAgain((WORD)(2 + (GetKeyState(VK_SHIFT) < 0)));
break;
case VK_F5:
if (hwndMain) {
HideEditCaret();
InvalidateRect(hwndMain, NULL, TRUE);
UpdateWindow(hwndMain);
NewPosition(&CurrPos);
ShowEditCaret();
}
break;
case VK_F6:
if (GetKeyState(VK_CONTROL) < 0) {
/*switch between WinVi instances...*/
InterCommActivate(GetKeyState(VK_SHIFT) < 0);
}
break;
case VK_F12:
if (GetKeyState(VK_SHIFT) >= 0) return;
if (!IsToolButtonEnabled(IDB_SAVE)) {
/*switch to command mode even if file is not written*/
if (Mode!=CommandMode && !DefaultInsFlag) GotChar('\033', 1);
return;
}
if (InNumber) SetStatusCommand(NULL, FALSE);
Save(L"");
break;
case VK_LEFT: Pos = GetKeyState(VK_CONTROL)<0 ?'B' :'h'; break;
case VK_UP: Pos = GetKeyState(VK_CONTROL)<0 ?CTRL('y') :'k'; break;
case VK_RIGHT: Pos = GetKeyState(VK_CONTROL)<0 ?'W' :'l'; break;
case VK_DOWN: Pos = GetKeyState(VK_CONTROL)<0 ?CTRL('e') :'j'; break;
case VK_PRIOR: Pos = CTRL('b'); break;
case VK_NEXT: Pos = CTRL('f'); break;
case VK_HOME: if (GetKeyState(VK_CONTROL) < 0) {
Num = 1; Pos = 'G';
} else Pos = '^'; break;
case VK_END: if (GetKeyState(VK_CONTROL) < 0) {
Num = 0; Pos = 'G';
Flags |= 0x1000;
} else Pos = '$'; break;
case VK_INSERT: if (!EscapeInput) {
if (GetKeyState(VK_SHIFT) < 0) {
if (GetKeyState(VK_CONTROL) >= 0)
ClipboardPaste();
} else if (GetKeyState(VK_CONTROL)<0)
ClipboardCopy();
else if (!ExecRunning()) {
if (Mode == InsertMode) {
Mode = CommandMode;
GotChar('R', 0);
} else {
Mode = CommandMode;
GotChar('i', 0);
}
}
}
break;
case VK_DELETE: if (!EscapeInput)
DeleteKey((WORD)(WrapPosFlag ? 0x200 : 0));
break;
default: return;
}
HexEditFirstNibble = -1;
if (Pos) {
if (Mode != CommandMode && Mode != CmdGotFirstChar) {
if (Number || Mode < InsertMode) {
MessageBeep(MB_ICONEXCLAMATION);
if (Mode != InsertMode) {
Mode = CommandMode;
SetStatusCommand(NULL, FALSE);
}
return;
}
}
if (Mode == CmdGotFirstChar) {
if (Num) {
PWSTR p = StatusCmd;
if (DblQuoteChar)
p += _snwprintf(p, WSIZE(StatusCmd) - (p-StatusCmd),
L"\"%c ", DblQuoteChar);
if (Multiplier)
p += _snwprintf(p, WSIZE(StatusCmd) - (p-StatusCmd),
L"%u ", Multiplier);
_snwprintf(p, WSIZE(StatusCmd) - (p-StatusCmd),
L"%c %u", CmdFirstChar, Num);
InNumber = TRUE;
Number = Num;
}
DoCompoundCommand(Multiplier, Pos, Pos, TRUE);
InNumber = FALSE;
Multiplier = 0;
if (Mode != CommandMode) return;
NewStatusString = NULL;
} else {
if (InNumber) {
if (Pos < ' ')
_snwprintf(StatusCmd, WSIZE(StatusCmd),
L"%u ^%c", Number, Pos + ('A'-1));
else _snwprintf(StatusCmd, WSIZE(StatusCmd),
L"%u %c", Number, Pos);
SetStatusCommand(StatusCmd, TRUE);
NewStatusString = NULL;
}
if (Mode != CommandMode) Flags |= 1;
if (GetKeyState(VK_SHIFT) < 0 && VirtualKey != VK_F3) Flags |= 17;
if (WrapPosFlag && Pos >= 'h') Flags |= 0x200;
if (Pos == '^' && !Num) {
Position(Num, Pos, 4 | (Mode==InsertMode));
if (!RelativePosition) Pos = '0';
}
Position(Num, Pos, Flags);
}
}
if (Mode == CommandMode) {
*StatusCmd = '\0';
SetStatusCommand(NewStatusString, FALSE);
Number = 0;
}
InNumber = FALSE;
}
extern INT DefaultNewLine;
void PrepareInsert(BOOL JumpFwd, BOOL SearchEol, BOOL AddEol)
{ INT c;
if (JumpFwd) {
BOOL Redraw = TRUE;
if (HexEditMode) Advance(&CurrPos, 1 + (UtfEncoding == 16));
do {
if (CharFlags(c = CharAt(&CurrPos)) & 1) break;
if (HexEditMode && !SearchEol) break;
Redraw = FALSE;
CharAndAdvance(&CurrPos);
} while (SearchEol);
if (AddEol) InsertEol(Redraw, DefaultNewLine);
} else if (SearchEol) {
do {
c = GoBackAndChar(&CurrPos);
} while (!(CharFlags(c) & 1));
if (c != C_EOF) c = AdvanceAndChar(&CurrPos);
if (AddEol) {
InsertEol(3, DefaultNewLine);
GoBackAndChar(&CurrPos);
} else {
/*advance to start of non-space area*/
while (CharFlags(c) & 16) c = AdvanceAndChar(&CurrPos);
}
}
}
BYTE CaseConvert[256] = { /*initial values for Western ANSI characters*/
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
64,'a','b','c','d','e','f','g', 'h','i','j','k','l','m','n','o',
'p','q','r','s','t','u','v','w', 'x','y','z', 91, 92, 93, 94, 95,
96,'A','B','C','D','E','F','G', 'H','I','J','K','L','M','N','O',
'P','Q','R','S','T','U','V','W', 'X','Y','Z',123,124,125,126,127,
128,129,130,131,132,133,134,135, 136,137,154,139,156,141,142,143,
144,145,146,147,148,149,150,151, 152,153,138,155,140,157,158,255,
160,161,162,163,164,165,166,167, 168,169,170,171,172,173,174,175,
176,177,178,179,180,181,182,183, 184,185,186,187,188,189,190,191,
224,225,226,227,228,229,230,231, 232,233,234,235,236,237,238,239,
240,241,242,243,244,245,246,215, 248,249,250,251,252,253,254,223,
192,193,194,195,196,197,198,199, 200,201,202,203,204,205,206,207,
208,209,210,211,212,213,214,247, 216,217,218,219,220,221,222,159
};
void ChangeCase(LONG Repeat)
{ INT c, Oldc;
BOOL Changed = FALSE, Advanced = FALSE;
for (;;) {
Oldc = c = CharAt(&CurrPos);
if (HexEditMode ? c == C_EOF : CharFlags(c) & 1) {
if (Advanced) GoBackAndChar(&CurrPos);
break;
}
if (!Repeat--) break;
if (c >= 0x100) c = Oldc;
else if (CharSet == CS_OEM) {
WCHAR wc;
wc = c;
UnicodeConvert(&wc, &wc, 1);
if (wc <= 0xff) c = UnicodeToOemChar(CaseConvert[wc]);
else c = Oldc;
} else {
c = CaseConvert[c];
if (CharSet == CS_EBCDIC) c = c>=0x100 ? Oldc : MapAnsiToEbcdic[c];
}
if (c != Oldc) {
INT OldSize = CharSize(Oldc);
INT NewSize = CharSize(c);
if (!CurrPos.p->PageBuf || CurrPos.i >= CurrPos.p->Fill)
/*must not occur*/
return;
if (!Changed) {
StartUndoSequence();
Changed = TRUE;
}
EnterDeleteForUndo(&CurrPos, OldSize, 0);
EnterInsertForUndo(&CurrPos, NewSize);
CurrPos.p->PageBuf[CurrPos.i] = c;
CurrPos.p->Flags &= ~ISSAFE;
if (UtfEncoding) {
if (UtfEncoding == 16) {
if (UtfLsbFirst) {
Advance(&CurrPos, 1);
CurrPos.p->PageBuf[CurrPos.i] = c >> 8;
CurrPos.p->Flags &= ~ISSAFE;
} else {
CurrPos.p->PageBuf[CurrPos.i] = c >> 8;
Advance(&CurrPos, 1);
CurrPos.p->PageBuf[CurrPos.i] = c;
CurrPos.p->Flags &= ~ISSAFE;
}
GoBack(&CurrPos, 1);
} else if (c >= 0x80) {
if (c < 0x800) {
CurrPos.p->PageBuf[CurrPos.i] = 0xc0 | (c >> 6);
Advance(&CurrPos, 1);
CurrPos.p->PageBuf[CurrPos.i] = 0x80 | (c & 0x3f);
CurrPos.p->Flags &= ~ISSAFE;
GoBack(&CurrPos, 1);
} else if (c < 0x10000) {
CurrPos.p->PageBuf[CurrPos.i] = 0xe0 | (c >> 12);
Advance(&CurrPos, 1);
CurrPos.p->PageBuf[CurrPos.i] = 0x80 | ((c>>6) & 0x3f);
CurrPos.p->Flags &= ~ISSAFE;
Advance(&CurrPos, 1);
CurrPos.p->PageBuf[CurrPos.i] = 0x80 | (c & 0x3f);
CurrPos.p->Flags &= ~ISSAFE;
GoBack(&CurrPos, 2);
} else {
/*should be impossible, case unknown in this area*/
assert(c < 0x10000);
}
}
}
InvalidateArea(&CurrPos, 1, 1);
}
CharAndAdvance(&CurrPos);
Advanced = TRUE;
}
if (Changed) SetUnsafe();
NewPosition(&CurrPos);
ShowEditCaret();
GetXPos(&CurrCol);
}
VOID SetNormalHelpContext(VOID)
{
if (Mode == InsertMode) HelpContext = HelpInsertmode;
else if (Mode == ReplaceMode) HelpContext = HelpReplacemode;
else HelpContext = HexEditMode ? HelpEditHexmode: HelpEditTextmode;
}
BOOL SearchPending;
void ViCommandDone(void)
{
Multiplier = Number = 0;
DblQuoteChar = 0;
Mode = CommandMode;
SetNormalHelpContext();
SearchPending = FALSE;
if (*StatusCmd) {
StatusCmd[0] = '\0';
SetStatusCommand(NULL, FALSE);
}
}
extern POSITION MarkPos[27];
void CommandLineDone(BOOL Escaped, PWSTR Cmd)
{
if (!Escaped && (*Cmd == '/' || *Cmd == '?')) {
POSITION SearchFailOldPos;
SearchFailOldPos = MarkPos[0];
MarkPos[0] = CurrPos;
if (Mode == CmdGotFirstChar && SearchPending) {
if (DoCompoundCommand(Multiplier, 'n', 'n', FALSE) &&