/
viewer.cpp
4455 lines (3923 loc) · 103 KB
/
viewer.cpp
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/*
viewer.cpp
Internal viewer
*/
/*
Copyright © 1996 Eugene Roshal
Copyright © 2000 Far Group
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the authors may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "headers.hpp"
#pragma hdrstop
#include "viewer.hpp"
#include "codepage.hpp"
#include "macroopcode.hpp"
#include "keyboard.hpp"
#include "flink.hpp"
#include "colors.hpp"
#include "keys.hpp"
#include "help.hpp"
#include "dialog.hpp"
#include "panel.hpp"
#include "filepanels.hpp"
#include "fileview.hpp"
#include "savescr.hpp"
#include "ctrlobj.hpp"
#include "scrbuf.hpp"
#include "TPreRedrawFunc.hpp"
#include "syslog.hpp"
#include "TaskBar.hpp"
#include "cddrv.hpp"
#include "drivemix.hpp"
#include "interf.hpp"
#include "message.hpp"
#include "clipboard.hpp"
#include "delete.hpp"
#include "dirmix.hpp"
#include "pathmix.hpp"
#include "filestr.hpp"
#include "mix.hpp"
#include "constitle.hpp"
#include "console.hpp"
#include "wakeful.hpp"
#include "RegExp.hpp"
#include "colormix.hpp"
#include "vmenu2.hpp"
#include "plugins.hpp"
#include "manager.hpp"
#include "language.hpp"
#include "datetime.hpp"
#include "keybar.hpp"
#include "stddlg.hpp"
enum SHOW_MODES
{
SHOW_RELOAD,
SHOW_HEX,
SHOW_UP,
SHOW_DOWN,
SHOW_DUMP
};
static void PR_ViewerSearchMsg();
static void ViewerSearchMsg(const string& name, int percent, int search_hex);
static int ViewerID=0;
#define MAX_VIEWLINE (ViOpt.MaxLineSize+ 0)
#define MAX_VIEWLINEB (ViOpt.MaxLineSize+15)
#define ZERO_CHAR (ViOpt.Visible0x00 && ViOpt.ZeroChar > 0 ? (wchar_t)(ViOpt.ZeroChar) : L' ')
static bool IsCodePageSupported(uintptr_t cp)
{
return Codepages().IsCodePageSupported(cp, 2);
}
// seems like this initialization list is toooooo long
Viewer::Viewer(window_ptr Owner, bool bQuickView, uintptr_t aCodePage):
SimpleScreenObject(Owner),
ViOpt(Global->Opt->ViOpt),
Signature(),
m_ViewKeyBar(),
Reader(ViewFile, (Global->Opt->ViOpt.MaxLineSize*2*64 > 64*1024 ? Global->Opt->ViOpt.MaxLineSize*2*64 : 64*1024)),
m_DeleteFolder(true),
strLastSearchStr(Global->GetSearchString()),
LastSearchCase(Global->GlobalSearchCase),
LastSearchWholeWords(Global->GlobalSearchWholeWords),
LastSearchReverse(Global->GlobalSearchReverse),
LastSearchHex(Global->GetSearchHex()),
LastSearchRegexp(Global->Opt->ViOpt.SearchRegexp),
LastSearchDirection(Global->GlobalSearchReverse? -1 : +1),
StartSearchPos(),
VM(),
FilePos(),
SecondPos(),
FileSize(),
LastSelectPos(),
LastSelectSize(-1),
LeftPos(),
LastPage(),
SelectPos(),
SelectSize(-1),
ManualSelectPos(-1),
SelectFlags(),
ShowStatusLine(true),
m_HideCursor(true),
ReadStdin(),
InternalKey(),
LastKeyUndo(),
Width(),
XX2(),
ViewerID(::ViewerID++),
OpenFailed(),
bVE_READ_Sent(),
HostFileViewer(),
AdjustSelPosition(),
redraw_selection(),
m_bQuickView(bQuickView),
DefCodePage(aCodePage),
vread_buffer(std::max(MAX_VIEWLINEB, 8192ll)),
lcache_first(-1),
lcache_last(-1),
lcache_lines(16*1000),
lcache_count(),
lcache_base(),
lcache_ready(),
lcache_wrap(-1),
lcache_wwrap(-1),
lcache_width(-1),
// dirty magic numbers, fix them!
max_backward_size(std::min(Options::ViewerOptions::eMaxLineSize*3ll, std::max(Global->Opt->ViOpt.MaxLineSize*2, 1024ll) * 32)),
llengths(max_backward_size / 40),
Search_buffer(3 * std::max(MAX_VIEWLINEB, 8192ll)),
vString(),
vgetc_buffer(),
vgetc_ready(),
vgetc_cb(),
vgetc_ib(),
vgetc_composite(L'\0'),
dump_text_mode(-1),
ReadBuffer(MAX_VIEWLINEB),
f8cps(true)
{
if (DefCodePage != CP_DEFAULT)
MB.SetCP(DefCodePage);
VM.CodePage=DefCodePage;
VM.Wrap=Global->Opt->ViOpt.ViewerIsWrap;
VM.WordWrap=Global->Opt->ViOpt.ViewerWrap;
VM.Hex = -1;
m_IdleCheck = std::make_unique<time_check>(time_check::delayed, 500);
}
Viewer::~Viewer()
{
KeepInitParameters();
if (ViewFile.Opened())
{
ViewFile.Close();
SavePosition();
}
_tran(SysLog(L"[%p] Viewer::~Viewer, TempViewName=[%s]",this,TempViewName));
/* $ 11.10.2001 IS
Óäàëÿåì ôàéë òîëüêî, åñëè íåò îòêðûòûõ îêîí ñ òàêèì èìåíåì.
*/
if (!strTempViewName.empty() && !Global->WindowManager->CountWindowsWithName(strTempViewName))
{
/* $ 14.06.2002 IS
Åñëè DeleteFolder ñáðîøåí, òî óäàëÿåì òîëüêî ôàéë. Èíà÷å - óäàëÿåì åùå
è êàòàëîã.
*/
if (m_DeleteFolder)
DeleteFileWithFolder(strTempViewName);
else
{
api::SetFileAttributes(strTempViewName,FILE_ATTRIBUTE_NORMAL);
api::DeleteFile(strTempViewName); //BUGBUG
}
}
}
struct Viewer::ViewerUndoData
{
ViewerUndoData(__int64 UndoAddr, __int64 UndoLeft):
UndoAddr(UndoAddr),
UndoLeft(UndoLeft)
{
}
__int64 UndoAddr;
__int64 UndoLeft;
};
void Viewer::SavePosition()
{
if (Global->Opt->ViOpt.SaveShortPos || Global->Opt->ViOpt.SavePos || Global->Opt->ViOpt.SaveCodepage || Global->Opt->ViOpt.SaveWrapMode)
{
ViewerPosCache poscache;
poscache.cur.FilePos = FilePos;
poscache.cur.LeftPos = LeftPos;
poscache.Hex_Wrap = (VM.Hex & 0x03) | 0x10 | (VM.Wrap ? 0x20 : 0x00) | (VM.WordWrap ? 0x40 : 0x00);
poscache.CodePage = VM.CodePage;
poscache.bm = BMSavePos;
string strCacheName = strPluginData.empty() ? strFullFileName : strPluginData+PointToName(strFileName);
FilePositionCache::AddPosition(strCacheName, poscache);
}
}
void Viewer::KeepInitParameters() const
{
Global->StoreSearchString(strLastSearchStr, LastSearchHex);
Global->GlobalSearchCase=LastSearchCase;
Global->GlobalSearchWholeWords=LastSearchWholeWords;
Global->GlobalSearchReverse=LastSearchReverse;
Global->Opt->ViOpt.ViewerIsWrap=VM.Wrap != 0;
Global->Opt->ViOpt.ViewerWrap=VM.WordWrap != 0;
Global->Opt->ViOpt.SearchRegexp=LastSearchRegexp;
}
int Viewer::OpenFile(const string& Name,int warning)
{
VM.CodePage=DefCodePage;
DefCodePage=CP_DEFAULT;
OpenFailed=false;
ViewFile.Close();
Reader.Clear();
vgetc_ready = lcache_ready = false;
SelectSize = -1; // Ñáðîñèì âûäåëåíèå
strFileName = Name;
if (Global->OnlyEditorViewerUsed && strFileName == L"-")
{
string strTempName;
if (!FarMkTempEx(strTempName))
{
OpenFailed = true;
return FALSE;
}
if (!ViewFile.Open(strTempName,GENERIC_READ|GENERIC_WRITE,FILE_SHARE_READ|FILE_SHARE_WRITE,nullptr,CREATE_ALWAYS,FILE_ATTRIBUTE_TEMPORARY|FILE_FLAG_DELETE_ON_CLOSE))
{
OpenFailed = true;
return FALSE;
}
DWORD ReadSize = 0;
size_t WrittenSize;
while (ReadFile(Console().GetOriginalInputHandle(),vread_buffer.data(),(DWORD)vread_buffer.size(),&ReadSize,nullptr) && ReadSize)
{
ViewFile.Write(vread_buffer.data(),ReadSize,WrittenSize);
}
ViewFile.SetPointer(0, nullptr, FILE_BEGIN);
//after reading from the pipe, redirect stdin to the real console stdin
//CONIN$ must be opened with the exact flags and name as below so api::CreateFile() is not good
SetStdHandle(STD_INPUT_HANDLE,CreateFile(L"CONIN$",GENERIC_READ|GENERIC_WRITE,FILE_SHARE_READ,nullptr,OPEN_EXISTING,0,nullptr));
ReadStdin=TRUE;
}
else
{
ViewFile.Open(strFileName, FILE_READ_DATA, FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE, nullptr, OPEN_EXISTING);
}
if (!ViewFile.Opened())
{
Global->CatchError();
/* $ 04.07.2000 tran
+ 'warning' flag processing, in QuickView it is FALSE
so don't show red message box */
if (warning)
Message(MSG_WARNING|MSG_ERRORTYPE,1,MSG(MViewerTitle),
MSG(MViewerCannotOpenFile),strFileName.data(),MSG(MOk));
OpenFailed=true;
return FALSE;
}
Reader.AdjustAlignment();
ConvertNameToFull(strFileName,strFullFileName);
api::GetFindDataEx(strFileName, ViewFindData);
uintptr_t CachedCodePage=0;
if ((Global->Opt->ViOpt.SavePos || Global->Opt->ViOpt.SaveShortPos || Global->Opt->ViOpt.SaveCodepage || Global->Opt->ViOpt.SaveWrapMode) && !ReadStdin)
{
string strCacheName=strPluginData.empty()?strFileName:strPluginData+PointToName(strFileName);
ViewerPosCache poscache;
bool found = FilePositionCache::GetPosition(strCacheName,poscache);
if (Global->Opt->ViOpt.SavePos || Global->Opt->ViOpt.SaveShortPos)
{
__int64 NewFilePos=std::max(poscache.cur.FilePos, 0LL);
__int64 NewLeftPos=poscache.cur.LeftPos;
if ( found && VM.Hex == -1 ) // keep VM.Hex if file listed (Grey+ / Gray-)
{
if ( 1 != (VM.Hex = (poscache.Hex_Wrap & 0x03)) )
dump_text_mode = VM.Hex;
}
BMSavePos=poscache.bm;
LastSelectPos=FilePos=NewFilePos;
LeftPos=NewLeftPos;
}
if (Global->Opt->ViOpt.SaveCodepage || Global->Opt->ViOpt.SavePos)
{
CachedCodePage=poscache.CodePage;
if (CachedCodePage && !IsCodePageSupported(CachedCodePage))
CachedCodePage = 0;
}
if (Global->Opt->ViOpt.SaveWrapMode && 0 != (poscache.Hex_Wrap & 0x10))
{
VM.Wrap = (poscache.Hex_Wrap & 0x20 ? 1 : 0);
VM.WordWrap = (poscache.Hex_Wrap & 0x40 ? 1 : 0);
}
}
else
{
FilePos=0;
}
// Unicode auto-detect ignores ViOpt.AutoDetectTable
{
bool Detect=false;
uintptr_t CodePage=0;
if (VM.CodePage == CP_DEFAULT || IsUnicodeOrUtfCodePage(VM.CodePage))
{
Detect = GetFileFormat(ViewFile, CodePage, &Signature, Global->Opt->ViOpt.AutoDetectCodePage!=0)
&& IsCodePageSupported(CodePage);
}
if (VM.CodePage == CP_DEFAULT)
{
if (Detect)
VM.CodePage = CodePage;
if (CachedCodePage)
VM.CodePage = CachedCodePage;
if (VM.CodePage == CP_DEFAULT)
VM.CodePage = GetDefaultCodePage();
MB.SetCP(static_cast<UINT>(VM.CodePage));
}
ViewFile.SetPointer(0, nullptr, FILE_BEGIN);
}
SetFileSize();
if ( -1 == dump_text_mode )
dump_text_mode = isBinaryFile(VM.CodePage) ? 2 : 0;
if ( -1 == VM.Hex )
VM.Hex = dump_text_mode;
if (FilePos > FileSize)
FilePos=0;
if ( FilePos )
AdjustFilePos();
ChangeViewKeyBar();
AdjustWidth();
if (!HostFileViewer) ReadEvent();
string strRoot;
GetPathRoot(strFullFileName, strRoot);
int DriveType = FAR_GetDriveType(strRoot, 2); // media inserted here
int update_check_period = -1;
switch (DriveType) //??? make it configurable
{
case DRIVE_REMOVABLE: update_check_period = -1; break; // floppy: never
case DRIVE_USBDRIVE: update_check_period = 500; break; // flash drive: 0.5 sec
case DRIVE_FIXED: update_check_period = +1; break; // hard disk: 1 msec
case DRIVE_REMOTE: update_check_period = 500; break; // network drive: 0.5 sec
case DRIVE_CDROM: update_check_period = -1; break; // cd/dvd: never
case DRIVE_RAMDISK: update_check_period = +1; break; // ram-drive: 1 msec
default: update_check_period = -1; break; // unknown: never
}
m_TimeCheck = std::make_unique<time_check>(time_check::delayed, update_check_period);
return TRUE;
}
bool Viewer::isBinaryFile(uintptr_t cp) // very approximate: looks for '\0' in first 2k bytes
{
char Buffer[2048];
auto CurrentPos = vtell();
vseek(0, FILE_BEGIN);
size_t BytesRead = 0;
bool Result = ViewFile.Read(Buffer, sizeof(Buffer), BytesRead, nullptr);
vseek(CurrentPos, FILE_BEGIN);
if (!Result)
return true;
if (IsUnicodeCodePage(cp))
{
const auto Begin = reinterpret_cast<const wchar_t*>(Buffer);
const auto End = Begin + BytesRead/sizeof(wchar_t);
return std::find(Begin, End, L'\0') != End;
}
else
{
return std::find(Buffer, Buffer + BytesRead, '\0') != Buffer + BytesRead;
}
}
void Viewer::AdjustWidth()
{
Width=m_X2-m_X1+1;
XX2=m_X2;
if (ViOpt.ShowScrollbar && !m_bQuickView)
{
Width--;
XX2--;
}
}
bool Viewer::CheckChanged()
{
api::FAR_FIND_DATA NewViewFindData;
if (!api::GetFindDataEx(strFullFileName, NewViewFindData))
return TRUE;
// Smart file change check -- thanks Dzirt2005
//
bool changed = ViewFindData.ftLastWriteTime != NewViewFindData.ftLastWriteTime || ViewFindData.nFileSize != NewViewFindData.nFileSize;
if ( changed )
ViewFindData = NewViewFindData;
else {
if ( !ViewFile.GetSize(NewViewFindData.nFileSize) || FileSize == static_cast<__int64>(NewViewFindData.nFileSize) )
return TRUE;
changed = FileSize > static_cast<__int64>(NewViewFindData.nFileSize); // true if file shrank
}
SetFileSize();
if ( changed ) // do not reset caches if file just enlarged [make sense on Win7, doesn't matter on XP]
{
Reader.Clear(); // èíà÷å çà÷åì âñÿ ýòà âîçíÿ?
ViewFile.FlushBuffers();
vseek(0, FILE_CURRENT); // reset vgetc state
lcache_ready = false; // reset start-lines cache
}
return changed;
}
void Viewer::ShowPage(int nMode)
{
redraw_selection = false;
AdjustWidth();
if (!ViewFile.Opened())
{
if (!strFileName.empty() && ((nMode == SHOW_RELOAD) || (nMode == SHOW_HEX)|| (nMode == SHOW_DUMP)))
{
SetScreen(m_X1,m_Y1,m_X2,m_Y2,L' ',ColorIndexToColor(COL_VIEWERTEXT));
GotoXY(m_X1,m_Y1);
SetColor(COL_WARNDIALOGTEXT);
Global->FS << fmt::MaxWidth(XX2-m_X1+1)<<MSG(MViewerCannotOpenFile);
ShowStatus();
}
return;
}
if (m_HideCursor)
SetCursorType(0,10);
vseek(FilePos, FILE_BEGIN);
LastPage = 0;
if ( SelectSize < 0 )
SelectPos=FilePos;
switch (nMode)
{
case SHOW_HEX:
ShowHex();
break;
case SHOW_DUMP:
ShowDump();
break;
case SHOW_RELOAD:
{
m_TimeCheck->reset();
CheckChanged();
Strings.clear();
for (int Y = m_Y1; Y<=m_Y2; ++Y)
{
Strings.emplace_back(VALUE_TYPE(Strings)());
Strings.back().nFilePos = vtell();
if (Y==m_Y1+1 && !veof())
SecondPos=vtell();
ReadString(&Strings.back(), -1);
}
}
break;
case SHOW_UP:
if (m_Y2 > m_Y1)
{
SecondPos = Strings.front().nFilePos;
Strings.pop_back();
Strings.emplace_front(ViewerString());
Strings.front().nFilePos = FilePos;
}
else
{
SecondPos = Strings.front().nFilePos;
Strings.front().nFilePos = FilePos;
}
ReadString(&Strings.front(),(int)(SecondPos-FilePos));
break;
case SHOW_DOWN:
if (m_Y2 > m_Y1)
{
Strings.pop_front();
Strings.emplace_back(VALUE_TYPE(Strings)());
FilePos = Strings.front().nFilePos;
auto Second = std::next(Strings.begin());
SecondPos = Second->nFilePos;
auto PreLast = std::prev(Strings.end(), 2);
Strings.back().nFilePos = PreLast->nFilePos + PreLast->linesize;
}
else
{
Strings.front().nFilePos += Strings.front().linesize;
FilePos = Strings.front().nFilePos;
SecondPos = FilePos;
}
vseek(Strings.back().nFilePos, FILE_BEGIN);
ReadString(&Strings.back(), -1);
break;
}
if (nMode != SHOW_HEX && nMode != SHOW_DUMP)
{
int Y = m_Y1 - 1;
FOR (auto& i, Strings)
{
++Y;
SetColor(COL_VIEWERTEXT);
GotoXY(m_X1,Y);
if (static_cast<long long>(i.Data.size()) > LeftPos)
{
Global->FS << fmt::LeftAlign()<<fmt::ExactWidth(Width)<< i.Data.data() + LeftPos;
}
else
{
Global->FS << fmt::MinWidth(Width)<<L"";
}
if (SelectSize >= 0 && i.bSelection)
{
__int64 SelX1;
if (LeftPos > i.nSelStart)
SelX1 = m_X1;
else
SelX1 = i.nSelStart - LeftPos;
if (!VM.Wrap && (i.nSelEnd < LeftPos || i.nSelStart > LeftPos + XX2 - m_X1))
{
if (AdjustSelPosition)
{
LeftPos = i.nSelStart - 1;
AdjustSelPosition = false;
Show();
return;
}
}
else
{
SetColor(COL_VIEWERSELECTEDTEXT);
GotoXY(static_cast<int>(m_X1+SelX1),Y);
__int64 Length = i.nSelEnd - i.nSelStart;
if (LeftPos > i.nSelStart)
Length = i.nSelEnd - LeftPos;
if (LeftPos > i.nSelEnd)
Length = 0;
Global->FS << fmt::MaxWidth(static_cast<size_t>(Length)) << i.Data.data() + SelX1 + LeftPos;
}
}
if (static_cast<long long>(i.Data.size()) > LeftPos + Width && ViOpt.ShowArrows)
{
GotoXY(XX2,Y);
SetColor(COL_VIEWERARROWS);
BoxText(0xbb);
}
if (LeftPos>0 && !i.Data.empty() && ViOpt.ShowArrows)
{
GotoXY(m_X1,Y);
SetColor(COL_VIEWERARROWS);
BoxText(0xab);
}
}
}
DrawScrollbar();
ShowStatus();
}
void Viewer::DisplayObject()
{
ShowPage(VM.Hex ? (VM.Hex > 1 ? SHOW_DUMP : SHOW_HEX) : SHOW_RELOAD);
}
int Viewer::getCharSize() const
{
if (CP_UTF8 == VM.CodePage)
return -1;
else if (CP_UNICODE == VM.CodePage || CP_REVERSEBOM == VM.CodePage)
return +2;
else
return (static_cast<UINT>(VM.CodePage) == MB.current_cp)? -MB.current_mb : +1;
}
static inline int getChSize( UINT cp )
{
if ( CP_UNICODE == cp || CP_REVERSEBOM == cp )
return +2;
else
return +1;
}
int Viewer::txt_dump(const unsigned char *line, size_t nr, int width, wchar_t *outstr, wchar_t zch, int tail) const
{
int ib, iw;
std::vector<wchar_t> w1(width);
UINT cp = static_cast<UINT>(VM.CodePage);
if (cp == CP_UNICODE)
{
ib = (int)(nr / 2);
memcpy(outstr, line, ib*2);
if ( nr & 1)
outstr[ib++] = Utf::REPLACE_CHAR;
}
else if (cp == CP_REVERSEBOM)
{
ib = (int)(nr / 2);
for ( iw=0; iw < ib; ++iw )
outstr[iw] = (wchar_t)((line[iw*2] << 8) | line[iw*2+1]);
if ( nr & 1)
outstr[ib++] = Utf::REPLACE_CHAR;
}
else if (cp == CP_UTF8)
{
int dummy_tail, nw;
std::vector<wchar_t> w2(width);
ib = iw = 0;
nw = Utf8::ToWideChar(reinterpret_cast<const char*>(line), (int)nr, w1.data(), w2.data(), width, dummy_tail);
bool first = true;
while (ib < width && iw < nw)
{
if (first && w1[iw] == Utf::REPLACE_CHAR && w2[iw] == L'?')
{
outstr[ib++] = Utf::CONTINUE_CHAR; // ýòî ìîæåò áûòü íå ñîâñåì êîððåêòíî äëÿ 'ïëîõèõ' utf-8
} // íî óñëîæíÿòü èç-çà ýòîãî êîä íà ìîé âçãëÿä íå ñòîèò...
else
{
first = false;
outstr[ib++] = (w1[iw] == Utf::BOM_CHAR ? Utf::REPLACE_CHAR : w1[iw]); // BOM can be Zero Length
}
int clen = WideCharToMultiByte(CP_UTF8, 0, w2.data()+iw, 1, nullptr,0, nullptr,nullptr);
while (--clen > 0 && ib < width)
outstr[ib++] = Utf::CONTINUE_CHAR;
++iw;
}
}
else if (cp == MB.current_cp)
{
ib = 0;
while (ib < width && static_cast<DWORD>(ib) < nr)
{
if (tail)
{
--tail;
outstr[ib++] = Utf::CONTINUE_CHAR;
continue;
}
int clen = MB.GetChar(line+ib, nr-static_cast<DWORD>(ib), *(outstr+ib));
if (clen <= 0)
{
outstr[ib++] = Utf::REPLACE_CHAR;
continue;
}
++ib;
while (--clen > 0 && ib < width)
outstr[ib++] = Utf::CONTINUE_CHAR;
if (clen > 0) // char continues on the next line
tail = clen;
}
}
else
{
ib = MultiByteToWideChar(cp, 0, (const char *)line, static_cast<int>(nr), outstr, width);
if ( ib < 0)
ib = 0;
}
for ( iw = 0; iw < width; ++iw ) {
if ( iw >= ib )
outstr[iw] = L' ';
else if ( !outstr[iw] )
outstr[iw] = zch;
}
outstr[width] = L'\0';
return tail;
}
void Viewer::ShowDump()
{
int Y, EndFile = 0, ch_size = getChSize(VM.CodePage);
int tail = 0, xl = VM.CodePage == CP_UTF8 ? 4-1 : (VM.CodePage==MB.current_cp ? MB.current_mb-1 : 0);
std::vector<unsigned char> line(Width * 2);
std::vector<wchar_t> OutStr(Width + 1);
size_t nr, nb = Width*ch_size + xl;
DWORD mb = Width*ch_size;
__int64 bpos;
FilePos -= FilePos % ch_size;
vseek(SecondPos = FilePos, FILE_BEGIN);
for (EndFile=0,Y=m_Y1; Y<=m_Y2; Y++)
{
SetColor(COL_VIEWERTEXT);
GotoXY(m_X1, Y);
if (EndFile)
{
Global->FS << fmt::MinWidth(ObjWidth())<<L"";
continue;
}
bpos = vtell();
if (Y == m_Y1+1)
SecondPos = bpos;
nr = 0;
Reader.Read(line.data(), nb, &nr);
if (nr > mb)
Reader.Unread(nr-mb);
else
LastPage = EndFile = veof() ? 1 : 0;
tail = txt_dump(line.data(), nr, Width, OutStr.data(), ZERO_CHAR, tail);
Global->FS << fmt::LeftAlign()<<fmt::MinWidth(ObjWidth()) << OutStr.data();
if ( SelectSize > 0 && bpos < SelectPos+SelectSize && bpos+mb > SelectPos ) {
int bsel = SelectPos > bpos ? (int)(SelectPos-bpos) / ch_size : 0;
int esel = SelectPos+SelectSize < bpos+mb ? ((int)(SelectPos+SelectSize-bpos)+ch_size-1)/ch_size: Width;
SetColor(COL_VIEWERSELECTEDTEXT);
GotoXY(bsel, Y);
Global->FS << fmt::MaxWidth(esel-bsel)<<OutStr.data() + bsel;
}
}
}
void Viewer::ShowHex()
{
wchar_t OutStr[128],TextStr[20];
int EndFile;
int X,Y,TextPos;
int SelStart, SelEnd;
__int64 HexLeftPos=((LeftPos>80-ObjWidth()) ? std::max(80-ObjWidth(),0):LeftPos);
const wchar_t BorderLine[] = {BoxSymbols[BS_V1],L' ',0};
int tail = 0, border_len = (int)wcslen(BorderLine);
for (LastPage=EndFile=0,Y=m_Y1; Y<=m_Y2; Y++)
{
bool bSelStartFound = false;
bool bSelEndFound = false;
__int64 SelSize=0;
SetColor(COL_VIEWERTEXT);
GotoXY(m_X1,Y);
if (EndFile)
{
Global->FS << fmt::MinWidth(ObjWidth())<<L"";
continue;
}
if (Y==m_Y1+1 && !veof())
SecondPos=vtell();
int out_len = _snwprintf(OutStr,ARRAYSIZE(OutStr),L"%010I64X: ", vtell());
SelEnd = SelStart = out_len;
TextPos=0;
__int64 fpos = vtell();
if (fpos > SelectPos)
bSelStartFound = true;
if (fpos < SelectPos+SelectSize-1)
bSelEndFound = true;
if ( SelectSize < 0 )
bSelStartFound = bSelEndFound = false;
unsigned char line[16+3];
size_t nr = 0;
size_t nb = CP_UTF8 == VM.CodePage ? 16 + 4 - 1 : (VM.CodePage == MB.current_cp ? 16 + MB.current_mb - 1 : 16);
Reader.Read(line, nb, &nr);
if (nr > 16)
Reader.Unread(nr-16);
else
LastPage = EndFile = veof() ? 1 : 0;
if (!nr)
{
*OutStr = L'\0';
}
else
{
if (IsUnicodeCodePage(VM.CodePage))
{
int be = VM.CodePage == CP_REVERSEBOM ? 1 : 0;
for (X=0; X<16; X += 2)
{
if (SelectSize >= 0 && (SelectPos == fpos || SelectPos == fpos+1))
{
bool half = SelectPos != fpos;
bSelStartFound = true;
SelStart = out_len + (half ? 1+be : 0);
if ( 0 == (SelSize=SelectSize) )
SelStart += (half ? be : 0) - 1;
}
if (SelectSize >= 0 && (fpos == SelectPos+SelectSize-1 || fpos+1 == SelectPos+SelectSize-1))
{
bool half = fpos == SelectPos+SelectSize-1;
bSelEndFound = true;
SelEnd = out_len+3 - (half ? 1+be : 0);
if ( 0 == (SelSize=SelectSize) )
SelEnd = SelStart;
}
else if ( SelectSize == 0 && (SelectPos == fpos || SelectPos == fpos+1) )
{
bSelEndFound = true;
SelSize = 0;
SelEnd = SelStart;
}
if ((DWORD)X < nr-1) // full character
{
unsigned ch = line[X+be] + (line[X+1-be] << 8);
_snwprintf(OutStr+out_len, ARRAYSIZE(OutStr)-out_len, L"%04X ", ch);
TextStr[TextPos++] = ch ? (wchar_t)ch : ZERO_CHAR;
}
else if ((DWORD)X == nr-1) // half character only
{
int o1 = 2 * (1 - be);
_snwprintf(OutStr+out_len+o1, ARRAYSIZE(OutStr)-out_len-o1, L"%02X", line[X]);
OutStr[out_len+2-o1] = OutStr[out_len+2-o1+1] = L'x';
OutStr[out_len+4] = L' ';
TextStr[TextPos++] = Utf::REPLACE_CHAR;
}
else // no character
{
wcscpy(OutStr+out_len, L" ");
TextStr[TextPos++] = L' ';
}
out_len += 5;
if (X == 3*2)
{
wcscpy(OutStr+out_len, BorderLine);
out_len += border_len;
}
fpos += 2;
}
}
else
{
if ( SelectSize >= 0 )
{
if (SelectPos >= fpos && SelectPos < fpos+16)
{
int off = (int)(SelectPos - fpos);
bSelStartFound = true;
SelStart = out_len + 3*off + (off < 8 ? 0 : border_len);
if ( 0 == (SelSize=SelectSize) )
--SelStart;
}
__int64 selectEnd = SelectPos + SelectSize - 1;
if (selectEnd >= fpos && selectEnd < fpos+16)
{
int off = (int)(selectEnd - fpos);
bSelEndFound = true;
SelEnd = (0 == (SelSize=SelectSize) ? SelStart : out_len + 3*off + (off < 8 ? 0 : border_len) + 1);
}
else if ( SelectSize == 0 && SelectPos == fpos )
{
bSelEndFound = true;
SelSize = 0;
SelEnd = SelStart;
}
}
for (X=0; X<16; X++)
{
int off = out_len + 3*X + (X < 8 ? 0 : border_len);
if (X == 8)
wcscpy(OutStr+off-border_len, BorderLine);
if (X < (int)nr)
_snwprintf(OutStr+off, ARRAYSIZE(OutStr)-off, L"%02X ", (int)line[X]);
else
wcscpy(OutStr+off, L" ");
}
out_len += 3*16 + border_len;
tail = txt_dump(line, nr, 16, TextStr, ZERO_CHAR, tail);
TextPos = 16;
}
}
TextStr[TextPos] = L' ';
TextStr[TextPos+1] = L'\0';
if ((SelEnd <= SelStart) && bSelStartFound && bSelEndFound && SelectSize > 0 )
SelEnd = out_len-2;
OutStr[out_len] = L' ';
wcscpy(OutStr+out_len+1, TextStr);
if (StrLength(OutStr)>HexLeftPos)
{
Global->FS << fmt::LeftAlign()<<fmt::ExactWidth(ObjWidth())<<OutStr+static_cast<size_t>(HexLeftPos);
}
else
{
Global->FS << fmt::MinWidth(ObjWidth())<<L"";
}
if (bSelStartFound && bSelEndFound)
{
SetColor(COL_VIEWERSELECTEDTEXT);
GotoXY((int)((__int64)m_X1+SelStart-HexLeftPos),Y);
Global->FS << fmt::MaxWidth(SelEnd-SelStart+1)<<OutStr+static_cast<size_t>(SelStart);
SelSize = 0;
}
}
}
/* $ 27.04.2001 DJ
îòðèñîâêà ñêðîëëáàðà - â îòäåëüíóþ ôóíêöèþ
*/
void Viewer::DrawScrollbar()