finalcut/src/fterm.cpp

2560 lines
61 KiB
C++

/***********************************************************************
* fterm.cpp - Base class for terminal control *
* *
* This file is part of the Final Cut widget toolkit *
* *
* Copyright 2012-2020 Markus Gans *
* *
* The Final Cut is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Lesser General Public License *
* as published by the Free Software Foundation; either version 3 of *
* the License, or (at your option) any later version. *
* *
* The Final Cut 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 Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this program. If not, see *
* <http://www.gnu.org/licenses/>. *
***********************************************************************/
#include <algorithm>
#include <unordered_map>
#include <string>
#include <vector>
#include "final/fapplication.h"
#include "final/fc.h"
#include "final/fcharmap.h"
#include "final/fcolorpalette.h"
#include "final/fkey_map.h"
#include "final/fkeyboard.h"
#include "final/fmouse.h"
#include "final/foptiattr.h"
#include "final/foptimove.h"
#include "final/fstartoptions.h"
#include "final/fstring.h"
#include "final/fsystemimpl.h"
#include "final/fterm.h"
#include "final/ftermbuffer.h"
#include "final/ftermcap.h"
#include "final/ftermcapquirks.h"
#include "final/ftermdata.h"
#include "final/ftermdebugdata.h"
#include "final/ftermdetection.h"
#include "final/ftermios.h"
#include "final/ftermxterminal.h"
#if defined(UNIT_TEST)
#include "final/ftermlinux.h"
#include "final/ftermfreebsd.h"
#include "final/ftermopenbsd.h"
#elif defined(__linux__)
#include "final/ftermlinux.h"
#elif defined(__FreeBSD__) || defined(__DragonFly__)
#include "final/ftermfreebsd.h"
#elif defined(__NetBSD__) || defined(__OpenBSD__)
#include "final/ftermopenbsd.h"
#endif
namespace finalcut
{
// global FTerm object
static FTerm* init_term_object{nullptr};
// global init state
static bool term_initialized{false};
// static class attributes
FTermData* FTerm::data {nullptr};
FSystem* FTerm::fsys {nullptr};
FOptiMove* FTerm::opti_move {nullptr};
FOptiAttr* FTerm::opti_attr {nullptr};
FTermDetection* FTerm::term_detection{nullptr};
FTermXTerminal* FTerm::xterm {nullptr};
FKeyboard* FTerm::keyboard {nullptr};
FMouseControl* FTerm::mouse {nullptr};
#if defined(UNIT_TEST)
FTermLinux* FTerm::linux {nullptr};
FTermFreeBSD* FTerm::freebsd {nullptr};
FTermOpenBSD* FTerm::openbsd {nullptr};
#elif defined(__linux__)
FTermLinux* FTerm::linux {nullptr};
#elif defined(__FreeBSD__) || defined(__DragonFly__)
FTermFreeBSD* FTerm::freebsd {nullptr};
#elif defined(__NetBSD__) || defined(__OpenBSD__)
FTermOpenBSD* FTerm::openbsd {nullptr};
#endif
#if DEBUG
FTermDebugData* FTerm::debug_data {nullptr};
#endif
//----------------------------------------------------------------------
// class FTerm
//----------------------------------------------------------------------
// constructors and destructor
//----------------------------------------------------------------------
FTerm::FTerm (bool disable_alt_screen)
{
if ( ! term_initialized )
init (disable_alt_screen);
}
//----------------------------------------------------------------------
FTerm::~FTerm() // destructor
{
if ( init_term_object == this )
finish(); // Resetting console settings
}
// public methods of FTerm
//----------------------------------------------------------------------
std::size_t FTerm::getLineNumber()
{
const auto& term_geometry = data->getTermGeometry();
if ( term_geometry.getHeight() == 0 )
detectTermSize();
return term_geometry.getHeight();
}
//----------------------------------------------------------------------
std::size_t FTerm::getColumnNumber()
{
const auto& term_geometry = data->getTermGeometry();
if ( term_geometry.getWidth() == 0 )
detectTermSize();
return term_geometry.getWidth();
}
//----------------------------------------------------------------------
const FString FTerm::getKeyName (FKey keynum)
{
return keyboard->getKeyName (keynum);
}
//----------------------------------------------------------------------
charSubstitution& FTerm::getCharSubstitutionMap()
{
return data->getCharSubstitutionMap();
}
//----------------------------------------------------------------------
int FTerm::getTTYFileDescriptor()
{
return ( data ) ? data->getTTYFileDescriptor() : 0;
}
//----------------------------------------------------------------------
char* FTerm::getTermType()
{
return data->getTermType();
}
//----------------------------------------------------------------------
char* FTerm::getTermFileName()
{
return data->getTermFileName();
}
//----------------------------------------------------------------------
int FTerm::getTabstop()
{
return FTermcap::tabstop;
}
//----------------------------------------------------------------------
int FTerm::getMaxColor()
{
return FTermcap::max_color;
}
//----------------------------------------------------------------------
FTermData* FTerm::getFTermData()
{
if ( data == nullptr )
{
try
{
data = new FTermData;
}
catch (const std::bad_alloc& ex)
{
std::cerr << bad_alloc_str << ex.what() << std::endl;
std::abort();
}
}
return data;
}
//----------------------------------------------------------------------
FSystem* FTerm::getFSystem()
{
if ( fsys == nullptr )
{
try
{
fsys = new FSystemImpl;
}
catch (const std::bad_alloc& ex)
{
std::cerr << bad_alloc_str << ex.what() << std::endl;
std::abort();
}
}
return fsys;
}
//----------------------------------------------------------------------
FOptiMove* FTerm::getFOptiMove()
{
if ( opti_move == nullptr )
{
try
{
opti_move = new FOptiMove;
}
catch (const std::bad_alloc& ex)
{
std::cerr << bad_alloc_str << ex.what() << std::endl;
std::abort();
}
}
return opti_move;
}
//----------------------------------------------------------------------
FOptiAttr* FTerm::getFOptiAttr()
{
if ( opti_attr == nullptr )
{
try
{
opti_attr = new FOptiAttr;
}
catch (const std::bad_alloc& ex)
{
std::cerr << bad_alloc_str << ex.what() << std::endl;
std::abort();
}
}
return opti_attr;
}
//----------------------------------------------------------------------
FTermDetection* FTerm::getFTermDetection()
{
if ( term_detection == nullptr )
{
try
{
term_detection = new FTermDetection;
}
catch (const std::bad_alloc& ex)
{
std::cerr << bad_alloc_str << ex.what() << std::endl;
std::abort();
}
}
return term_detection;
}
//----------------------------------------------------------------------
FTermXTerminal* FTerm::getFTermXTerminal()
{
if ( xterm == nullptr )
{
try
{
xterm = new FTermXTerminal;
}
catch (const std::bad_alloc& ex)
{
std::cerr << bad_alloc_str << ex.what() << std::endl;
std::abort();
}
}
return xterm;
}
//----------------------------------------------------------------------
FKeyboard* FTerm::getFKeyboard()
{
if ( keyboard == nullptr )
{
try
{
keyboard = new FKeyboard;
}
catch (const std::bad_alloc& ex)
{
std::cerr << bad_alloc_str << ex.what() << std::endl;
std::abort();
}
}
return keyboard;
}
//----------------------------------------------------------------------
FMouseControl* FTerm::getFMouseControl()
{
if ( mouse == nullptr )
{
try
{
mouse = new FMouseControl;
}
catch (const std::bad_alloc& ex)
{
std::cerr << bad_alloc_str << ex.what() << std::endl;
std::abort();
}
}
return mouse;
}
#if defined(__linux__)
//----------------------------------------------------------------------
FTermLinux* FTerm::getFTermLinux()
{
if ( linux == nullptr )
{
try
{
linux = new FTermLinux;
}
catch (const std::bad_alloc& ex)
{
std::cerr << bad_alloc_str << ex.what() << std::endl;
std::abort();
}
}
return linux;
}
#elif defined(__FreeBSD__) || defined(__DragonFly__) || defined(UNIT_TEST)
//----------------------------------------------------------------------
FTermFreeBSD* FTerm::getFTermFreeBSD()
{
if ( freebsd == nullptr )
{
try
{
freebsd = new FTermFreeBSD;
}
catch (const std::bad_alloc& ex)
{
std::cerr << bad_alloc_str << ex.what() << std::endl;
std::abort();
}
}
return freebsd;
}
#elif defined(__NetBSD__) || defined(__OpenBSD__) || defined(UNIT_TEST)
//----------------------------------------------------------------------
FTermOpenBSD* FTerm::getFTermOpenBSD()
{
if ( openbsd == nullptr )
{
try
{
openbsd = new FTermOpenBSD;
}
catch (const std::bad_alloc& ex)
{
std::cerr << bad_alloc_str << ex.what() << std::endl;
std::abort();
}
}
return openbsd;
}
#endif
#if DEBUG
//----------------------------------------------------------------------
FTermDebugData& FTerm::getFTermDebugData()
{
if ( debug_data == nullptr )
{
try
{
debug_data = new FTermDebugData;
}
catch (const std::bad_alloc& ex)
{
std::cerr << bad_alloc_str << ex.what() << std::endl;
std::abort();
}
}
return *debug_data;
}
#endif // DEBUG
//----------------------------------------------------------------------
bool FTerm::isNormal (const FChar* const& ch)
{
return FOptiAttr::isNormal(ch);
}
//----------------------------------------------------------------------
bool FTerm::hasUTF8()
{
return data->hasUTF8Console();
}
//----------------------------------------------------------------------
bool FTerm::isMonochron()
{
return data->isMonochron();
}
//----------------------------------------------------------------------
bool FTerm::isXTerminal()
{
return term_detection->isXTerminal();
}
//----------------------------------------------------------------------
bool FTerm::isAnsiTerminal()
{
return term_detection->isAnsiTerminal();
}
//----------------------------------------------------------------------
bool FTerm::isRxvtTerminal()
{
return term_detection->isRxvtTerminal();
}
//----------------------------------------------------------------------
bool FTerm::isUrxvtTerminal()
{
return term_detection->isUrxvtTerminal();
}
//----------------------------------------------------------------------
bool FTerm::isMltermTerminal()
{
return term_detection->isMltermTerminal();
}
//----------------------------------------------------------------------
bool FTerm::isPuttyTerminal()
{
return term_detection->isPuttyTerminal();
}
//----------------------------------------------------------------------
bool FTerm::isKdeTerminal()
{
return term_detection->isKdeTerminal();
}
//----------------------------------------------------------------------
bool FTerm::isGnomeTerminal()
{
return term_detection->isGnomeTerminal();
}
//----------------------------------------------------------------------
bool FTerm::isKtermTerminal()
{
return term_detection->isKtermTerminal();
}
//----------------------------------------------------------------------
bool FTerm::isTeraTerm()
{
return term_detection->isTeraTerm();
}
//----------------------------------------------------------------------
bool FTerm::isSunTerminal()
{
return term_detection->isSunTerminal();
}
//----------------------------------------------------------------------
bool FTerm::isCygwinTerminal()
{
return term_detection->isCygwinTerminal();
}
//----------------------------------------------------------------------
bool FTerm::isMinttyTerm()
{
return term_detection->isMinttyTerm();
}
//----------------------------------------------------------------------
bool FTerm::isLinuxTerm()
{
return term_detection->isLinuxTerm();
}
//----------------------------------------------------------------------
bool FTerm::isFreeBSDTerm()
{
return term_detection->isFreeBSDTerm();
}
//----------------------------------------------------------------------
bool FTerm::isNetBSDTerm()
{
return term_detection->isNetBSDTerm();
}
//----------------------------------------------------------------------
bool FTerm::isOpenBSDTerm()
{
return term_detection->isOpenBSDTerm();
}
//----------------------------------------------------------------------
bool FTerm::isScreenTerm()
{
return term_detection->isScreenTerm();
}
//----------------------------------------------------------------------
bool FTerm::isTmuxTerm()
{
return term_detection->isTmuxTerm();
}
//----------------------------------------------------------------------
bool FTerm::isNewFont()
{
return data->isNewFont();
}
//----------------------------------------------------------------------
bool FTerm::isCursorHideable()
{
const char* cursor_off_str = disableCursorString();
if ( cursor_off_str && std::strlen(cursor_off_str) > 0 )
return true;
return false;
}
//----------------------------------------------------------------------
bool FTerm::hasChangedTermSize()
{
return data->hasTermResized();
}
//----------------------------------------------------------------------
bool FTerm::hasShadowCharacter()
{
return data->hasShadowCharacter();
}
//----------------------------------------------------------------------
bool FTerm::hasHalfBlockCharacter()
{
return data->hasHalfBlockCharacter();
}
//----------------------------------------------------------------------
bool FTerm::hasAlternateScreen()
{
return data->hasAlternateScreen();
}
//----------------------------------------------------------------------
bool FTerm::canChangeColorPalette()
{
if ( isCygwinTerminal()
|| isKdeTerminal()
|| isTeraTerm()
|| isMltermTerminal()
|| isNetBSDTerm()
|| isOpenBSDTerm()
|| isSunTerminal()
|| isAnsiTerminal() )
return false;
return FTermcap::can_change_color_palette;
}
//----------------------------------------------------------------------
void FTerm::setTermType (const char term_name[])
{
data->setTermType(term_name);
}
//----------------------------------------------------------------------
void FTerm::setInsertCursor (bool enable)
{
if ( enable )
setInsertCursorStyle();
else
setOverwriteCursorStyle();
}
//----------------------------------------------------------------------
void FTerm::redefineDefaultColors (bool enable)
{
if ( isNewFont() ) // NewFont need the reverse-video attribute
return;
xterm->redefineDefaultColors (enable);
}
//----------------------------------------------------------------------
void FTerm::setDblclickInterval (const uInt64 timeout)
{
mouse->setDblclickInterval(timeout);
}
//----------------------------------------------------------------------
bool FTerm::setUTF8 (bool enable) // UTF-8 (Unicode)
{
if ( data->isUTF8() == enable )
return enable;
if ( enable )
data->setUTF8(true);
else
data->setUTF8(false);
#if defined(__linux__)
linux->setUTF8 (enable);
#endif
return data->isUTF8();
}
//----------------------------------------------------------------------
bool FTerm::setVGAFont()
{
if ( data->isVGAFont() )
return data->isVGAFont();
if ( hasNoFontSettingOption() )
return false;
if ( isXTerminal() || isScreenTerm()
|| isUrxvtTerminal() || FTermcap::osc_support )
{
data->setVGAFont(true);
// Set font in xterm to vga
xterm->setFont("vga");
data->setNewFont(false);
}
#if defined(__linux__)
else if ( isLinuxTerm() )
{
data->setVGAFont(linux->loadVGAFont());
}
#endif // defined(__linux__)
else
data->setVGAFont(false);
if ( data->isVGAFont() )
{
data->supportShadowCharacter (true);
data->supportHalfBlockCharacter (true);
}
return data->isVGAFont();
}
//----------------------------------------------------------------------
bool FTerm::setNewFont()
{
if ( isNewFont() )
return true;
if ( hasNoFontSettingOption() )
return false;
if ( isXTerminal() || isScreenTerm()
|| isUrxvtTerminal() || FTermcap::osc_support )
{
data->setNewFont(true);
// Set font in xterm to 8x16graph
xterm->setFont("8x16graph");
}
#if defined(__linux__)
else if ( isLinuxTerm() )
{
data->setNewFont(linux->loadNewFont());
}
#endif // defined(__linux__)
else
data->setNewFont(false);
if ( isNewFont() )
{
data->supportShadowCharacter (true);
data->supportHalfBlockCharacter (true);
}
return isNewFont();
}
//----------------------------------------------------------------------
bool FTerm::setOldFont()
{
bool retval{false};
if ( ! (data->isNewFont() || data->isVGAFont()) )
return false;
data->setNewFont(false);
data->setVGAFont(false);
if ( isXTerminal() || isScreenTerm()
|| isUrxvtTerminal() || FTermcap::osc_support )
{
const auto& font = data->getXtermFont();
if ( font.getLength() > 2 )
{
// restore saved xterm font
xterm->setFont(font);
}
else
{
// Set font in xterm to vga
xterm->setFont("vga");
}
retval = true;
}
#if defined(__linux__)
else if ( isLinuxTerm() )
{
retval = linux->loadOldFont();
}
#endif // defined(__linux__)
if ( retval )
{
data->setVGAFont(false);
data->setNewFont(false);
}
return retval;
}
//----------------------------------------------------------------------
int FTerm::openConsole()
{
if ( ! data )
data = FTerm::getFTermData();
int fd = data->getTTYFileDescriptor();
const char* termfilename = data->getTermFileName();
static const char* terminal_devices[] =
{
"/proc/self/fd/0",
"/dev/tty",
"/dev/tty0",
"/dev/vc/0",
"/dev/systty",
"/dev/console",
nullptr
};
if ( fd >= 0 ) // console is already opened
return 0;
if ( ! *termfilename || ! fsys )
return 0;
for (std::size_t i{0}; terminal_devices[i] != nullptr; i++)
{
fd = fsys->open(terminal_devices[i], O_RDWR, 0);
data->setTTYFileDescriptor(fd);
if ( fd >= 0 )
return 0;
}
return -1; // No file descriptor referring to the console
}
//----------------------------------------------------------------------
int FTerm::closeConsole()
{
if ( ! data )
data = FTerm::getFTermData();
const int fd = data->getTTYFileDescriptor();
int ret{-1};
if ( fd < 0 ) // console is already closed
return 0;
if ( ! fsys )
getFSystem();
ret = fsys->close(fd); // close console
data->setTTYFileDescriptor(-1);
if ( ret == 0 )
return 0;
else
return -1;
}
//----------------------------------------------------------------------
char* FTerm::moveCursorString (int xold, int yold, int xnew, int ynew)
{
// Returns the cursor move string
if ( data->hasCursorOptimisation() )
return opti_move->moveCursor (xold, yold, xnew, ynew);
else
return tgoto(TCAP(fc::t_cursor_address), xnew, ynew);
}
//----------------------------------------------------------------------
char* FTerm::cursorsVisibilityString (bool enable)
{
// Hides or shows the input cursor on the terminal
char* visibility_str{nullptr};
if ( data->isCursorHidden() == enable )
return nullptr;
if ( enable )
{
visibility_str = disableCursorString();
if ( visibility_str )
data->setCursorHidden (true); // Global state
}
else
{
visibility_str = enableCursorString();
if ( visibility_str )
data->setCursorHidden (false); // Global state
}
return visibility_str;
}
//----------------------------------------------------------------------
void FTerm::detectTermSize()
{
// Detect the terminal width and height
if ( ! data )
data = FTerm::getFTermData();
struct winsize win_size{};
auto& term_geometry = data->getTermGeometry();
int ret{};
errno = 0;
do
{
if ( ! fsys )
getFSystem();
ret = fsys->ioctl (FTermios::getStdOut(), TIOCGWINSZ, &win_size);
}
while (errno == EINTR);
if ( ret != 0 || win_size.ws_col == 0 || win_size.ws_row == 0 )
{
term_geometry.setPos (1, 1);
// Use COLUMNS or fallback to the xterm default width of 80 characters
uInt Columns = env2uint ("COLUMNS");
term_geometry.setWidth( ( Columns == 0) ? 80 : Columns);
// Use LINES or fallback to the xterm default height of 24 characters
uInt Lines = env2uint ("LINES");
term_geometry.setHeight( ( Lines == 0 ) ? 24 : Lines);
}
else
{
term_geometry.setRect(1, 1, win_size.ws_col, win_size.ws_row);
}
if ( opti_move )
opti_move->setTermSize ( term_geometry.getWidth()
, term_geometry.getHeight() );
}
//----------------------------------------------------------------------
void FTerm::setTermSize (const FSize& size)
{
// Set xterm size
xterm->setTermSize (size);
}
//----------------------------------------------------------------------
void FTerm::setTermTitle (const FString& title)
{
// Set the xterm window title
xterm->setTitle (title);
}
//----------------------------------------------------------------------
void FTerm::setKDECursor (fc::kdeKonsoleCursorShape style)
{
// Set cursor style in KDE konsole
if ( isKdeTerminal() )
{
oscPrefix();
putstringf (OSC "50;CursorShape=%d" BEL, style);
oscPostfix();
std::fflush(stdout);
}
}
//----------------------------------------------------------------------
void FTerm::saveColorMap()
{
#if defined(__linux__)
linux->saveColorMap();
#endif
}
//----------------------------------------------------------------------
void FTerm::resetColorMap()
{
const auto& oc = TCAP(fc::t_orig_colors);
const auto& op = TCAP(fc::t_orig_pair);
if ( oc )
putstring (oc);
#if defined(__linux__)
else
linux->resetColorMap();
#endif
if ( op )
putstring (op);
std::fflush(stdout);
}
//----------------------------------------------------------------------
void FTerm::setPalette (FColor index, int r, int g, int b)
{
// Redefine RGB color value for a palette entry
const auto& Ic = TCAP(fc::t_initialize_color);
const auto& Ip = TCAP(fc::t_initialize_pair);
bool state{false};
index = FOptiAttr::vga2ansi(index);
if ( Ic || Ip )
{
const char* color_str{};
const int rr = (r * 1001) / 256;
const int gg = (g * 1001) / 256;
const int bb = (b * 1001) / 256;
if ( Ic )
color_str = tparm(Ic, index, rr, gg, bb, 0, 0, 0, 0, 0);
else if ( Ip )
color_str = tparm(Ip, index, 0, 0, 0, rr, gg, bb, 0, 0);
if ( color_str )
{
putstring (color_str);
state = true;
}
}
#if defined(__linux__)
else
{
state = linux->setPalette(index, r, g, b);
}
#endif
if ( state )
std::fflush(stdout);
}
//----------------------------------------------------------------------
#if defined(UNIT_TEST)
void FTerm::setBeep (int Hz, int ms)
{
linux->setBeep (Hz, ms);
freebsd->setBeep (Hz, ms);
openbsd->setBeep (Hz, ms);
}
#elif defined(__linux__)
void FTerm::setBeep (int Hz, int ms)
{
linux->setBeep (Hz, ms);
}
#elif defined(__FreeBSD__) || defined(__DragonFly__)
void FTerm::setBeep (int Hz, int ms)
{
freebsd->setBeep (Hz, ms);
}
#elif defined(__NetBSD__) || defined(__OpenBSD__)
void FTerm::setBeep (int Hz, int ms)
{
openbsd->setBeep (Hz, ms);
}
#else
void FTerm::setBeep (int, int)
{ }
#endif // defined(__linux__)
//----------------------------------------------------------------------
void FTerm::resetBeep()
{
#if defined(UNIT_TEST)
linux->resetBeep();
freebsd->resetBeep();
openbsd->resetBeep();
#elif defined(__linux__)
linux->resetBeep();
#elif defined(__FreeBSD__) || defined(__DragonFly__)
freebsd->resetBeep();
#elif defined(__NetBSD__) || defined(__OpenBSD__)
openbsd->resetBeep();
#endif
}
//----------------------------------------------------------------------
void FTerm::beep()
{
if ( TCAP(fc::t_bell) )
{
putstring (TCAP(fc::t_bell));
std::fflush(stdout);
}
}
//----------------------------------------------------------------------
void FTerm::setEncoding (fc::encoding enc)
{
data->setTermEncoding (enc);
assert ( enc == fc::UTF8
|| enc == fc::VT100 // VT100 line drawing
|| enc == fc::PC // CP-437
|| enc == fc::ASCII );
// Set the new putchar() function pointer
switch ( enc )
{
case fc::UTF8:
putchar() = &FTerm::putchar_UTF8;
break;
case fc::VT100:
case fc::PC:
if ( isXTerminal() && data->hasUTF8Console() )
putchar() = &FTerm::putchar_UTF8;
else
putchar() = &FTerm::putchar_ASCII;
break;
case fc::ASCII:
case fc::UNKNOWN:
case fc::NUM_OF_ENCODINGS:
putchar() = &FTerm::putchar_ASCII;
}
if ( isLinuxTerm() )
{
if ( enc == fc::VT100 || enc == fc::PC )
{
char* empty{nullptr};
opti_move->set_tabular (empty);
}
else
opti_move->set_tabular (TCAP(fc::t_tab));
}
}
//----------------------------------------------------------------------
fc::encoding FTerm::getEncoding()
{
return data->getTermEncoding();
}
//----------------------------------------------------------------------
std::string FTerm::getEncodingString()
{
const auto& term_encoding = data->getTermEncoding();
const auto& encoding_list = data->getEncodingList();
const auto& end = encoding_list.end();
for (auto it = encoding_list.begin(); it != end; ++it )
if ( it->second == term_encoding )
return it->first;
return "";
}
//----------------------------------------------------------------------
bool FTerm::charEncodable (wchar_t c)
{
const wchar_t ch = charEncode(c);
return bool(ch > 0 && ch != c);
}
//----------------------------------------------------------------------
wchar_t FTerm::charEncode (wchar_t c)
{
return charEncode (c, data->getTermEncoding());
}
//----------------------------------------------------------------------
wchar_t FTerm::charEncode (wchar_t c, fc::encoding enc)
{
wchar_t ch_enc = c;
for (std::size_t i{0}; i <= fc::lastCharItem; i++)
{
if ( fc::character[i][fc::UTF8] == uInt(c) )
{
ch_enc = wchar_t(fc::character[i][enc]);
break;
}
}
if ( enc == fc::PC && ch_enc == c )
ch_enc = finalcut::unicode_to_cp437(c);
return ch_enc;
}
//----------------------------------------------------------------------
bool FTerm::scrollTermForward()
{
if ( TCAP(fc::t_scroll_forward) )
{
putstring (TCAP(fc::t_scroll_forward));
std::fflush(stdout);
return true;
}
return false;
}
//----------------------------------------------------------------------
bool FTerm::scrollTermReverse()
{
if ( TCAP(fc::t_scroll_reverse) )
{
putstring (TCAP(fc::t_scroll_reverse));
std::fflush(stdout);
return true;
}
return false;
}
//----------------------------------------------------------------------
FTerm::defaultPutChar& FTerm::putchar()
{
static defaultPutChar* fputchar = new defaultPutChar();
return *fputchar;
}
//----------------------------------------------------------------------
void FTerm::putstring (const char str[], int affcnt)
{
if ( ! fsys )
getFSystem();
fsys->tputs (str, affcnt, FTerm::putchar_ASCII);
}
//----------------------------------------------------------------------
int FTerm::putchar_ASCII (int c)
{
if ( ! fsys )
getFSystem();
if ( fsys->putchar(char(c)) == EOF )
return 0;
else
return 1;
}
//----------------------------------------------------------------------
int FTerm::putchar_UTF8 (int c)
{
if ( ! fsys )
getFSystem();
if ( c < 0x80 )
{
// 1 Byte (7-bit): 0xxxxxxx
fsys->putchar (c);
return 1;
}
else if ( c < 0x800 )
{
// 2 byte (11-bit): 110xxxxx 10xxxxxx
fsys->putchar (0xc0 | (c >> 6) );
fsys->putchar (0x80 | (c & 0x3f) );
return 2;
}
else if ( c < 0x10000 )
{
// 3 byte (16-bit): 1110xxxx 10xxxxxx 10xxxxxx
fsys->putchar (0xe0 | (c >> 12) );
fsys->putchar (0x80 | ((c >> 6) & 0x3f) );
fsys->putchar (0x80 | (c & 0x3f) );
return 3;
}
else if ( c < 0x200000 )
{
// 4 byte (21-bit): 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
fsys->putchar (0xf0 | (c >> 18) );
fsys->putchar (0x80 | ((c >> 12) & 0x3f) );
fsys->putchar (0x80 | ((c >> 6) & 0x3f) );
fsys->putchar (0x80 | (c & 0x3f));
return 4;
}
else
return EOF;
}
// protected methods of FTerm
//----------------------------------------------------------------------
void FTerm::initScreenSettings()
{
#if defined(__linux__)
// Important: Do not use setNewFont() or setVGAFont() after
// the console character mapping has been initialized
linux->initCharMap();
#elif defined(__FreeBSD__) || defined(__DragonFly__) || defined(UNIT_TEST)
freebsd->initCharMap();
#endif
// set xterm underline cursor
xterm->setCursorStyle (fc::blinking_underline);
// set xterm color settings to defaults
xterm->setDefaults();
}
//----------------------------------------------------------------------
char* FTerm::changeAttribute (FChar*& term_attr, FChar*& next_attr)
{
return opti_attr->changeAttribute (term_attr, next_attr);
}
//----------------------------------------------------------------------
void FTerm::changeTermSizeFinished()
{
data->setTermResized(false);
}
//----------------------------------------------------------------------
void FTerm::exitWithMessage (const FString& message)
{
// Exit the programm
if ( init_term_object )
init_term_object->finish();
std::fflush (stderr);
std::fflush (stdout);
if ( ! message.isEmpty() )
std::cerr << "Warning: " << message << std::endl;
std::exit (EXIT_FAILURE);
}
// private methods of FTerm
//----------------------------------------------------------------------
inline FStartOptions& FTerm::getStartOptions()
{
return FStartOptions::getFStartOptions();
}
//----------------------------------------------------------------------
void FTerm::init_global_values (bool disable_alt_screen)
{
// Initialize global values
// Preset to false
data->setNewFont(false);
// Sets alternate screen usage
data->useAlternateScreen(! disable_alt_screen);
// Initialize xterm object
xterm->init();
if ( ! getStartOptions().terminal_detection )
term_detection->setTerminalDetection (false);
#if DEBUG
debug_data->init();
#endif
}
//----------------------------------------------------------------------
void FTerm::init_terminal_device_path()
{
char termfilename[256]{};
const int stdout_no = FTermios::getStdOut();
if ( ttyname_r(stdout_no, termfilename, sizeof(termfilename)) )
termfilename[0] = '\0';
data->setTermFileName(termfilename);
}
//----------------------------------------------------------------------
void FTerm::oscPrefix()
{
if ( isTmuxTerm() )
{
// tmux device control string
putstring (ESC "Ptmux;" ESC);
}
else if ( isScreenTerm() )
{
// GNU Screen device control string
putstring (ESC "P");
}
}
//----------------------------------------------------------------------
void FTerm::oscPostfix()
{
if ( isScreenTerm() || isTmuxTerm() )
{
// GNU Screen/tmux string terminator
putstring (ESC "\\");
}
}
//----------------------------------------------------------------------
void FTerm::init_alt_charset()
{
// Read the used VT100 pairs
std::unordered_map<uChar, uChar> vt100_alt_char;
if ( TCAP(fc::t_acs_chars) )
{
for (std::size_t n{0}; TCAP(fc::t_acs_chars)[n]; n += 2)
{
// insert the VT100 key/value pairs into a map
const uChar p1 = uChar(TCAP(fc::t_acs_chars)[n]);
const uChar p2 = uChar(TCAP(fc::t_acs_chars)[n + 1]);
vt100_alt_char[p1] = p2;
}
}
enum column
{
vt100_key = 0,
utf8_char = 1
};
// Update array 'character' with discovered VT100 pairs
for (std::size_t n{0}; n <= fc::lastKeyItem; n++ )
{
const uChar keyChar = uChar(fc::vt100_key_to_utf8[n][vt100_key]);
const uChar altChar = uChar(vt100_alt_char[keyChar]);
const uInt utf8char = uInt(fc::vt100_key_to_utf8[n][utf8_char]);
const fc::encoding num{fc::NUM_OF_ENCODINGS};
uInt* p = std::find ( fc::character[0]
, fc::character[fc::lastCharItem] + num
, utf8char );
if ( p != fc::character[fc::lastCharItem] + num ) // found in character
{
const int item = int(std::distance(fc::character[0], p) / num);
if ( altChar ) // update alternate character set
fc::character[item][fc::VT100] = altChar;
else // delete VT100 char in character
fc::character[item][fc::VT100] = 0;
}
}
}
//----------------------------------------------------------------------
void FTerm::init_pc_charset()
{
bool reinit{false};
// rxvt does not support pc charset
if ( isRxvtTerminal() || isUrxvtTerminal() )
return;
if ( isGnomeTerminal() || isLinuxTerm() )
{
// Fallback if tcap "S2" is not found
if ( ! TCAP(fc::t_enter_pc_charset_mode) )
{
if ( data->hasUTF8Console() )
{
// Select iso8859-1 + null mapping
TCAP(fc::t_enter_pc_charset_mode) = \
C_STR(ESC "%@" ESC "(U");
}
else
{
// Select null mapping
TCAP(fc::t_enter_pc_charset_mode) = \
C_STR(ESC "(U");
}
opti_attr->set_enter_pc_charset_mode \
(TCAP(fc::t_enter_pc_charset_mode));
reinit = true;
}
// Fallback if tcap "S3" is not found
if ( ! TCAP(fc::t_exit_pc_charset_mode) )
{
if ( data->hasUTF8Console() )
{
// Select ascii mapping + utf8
TCAP(fc::t_exit_pc_charset_mode) = \
C_STR(ESC "(B" ESC "%G");
}
else
{
// Select ascii mapping
TCAP(fc::t_enter_pc_charset_mode) = \
C_STR(ESC "(B");
}
opti_attr->set_exit_pc_charset_mode \
(TCAP(fc::t_exit_pc_charset_mode));
reinit = true;
}
}
if ( reinit )
opti_attr->initialize();
}
//----------------------------------------------------------------------
void FTerm::init_cygwin_charmap()
{
// Replace don't printable PC charset characters in a Cygwin terminal
if ( ! isCygwinTerminal() )
return;
// PC encoding changes
for (std::size_t i{0}; i <= fc::lastCharItem; i++ )
{
if ( fc::character[i][fc::UTF8] == fc::BlackUpPointingTriangle ) // ▲
fc::character[i][fc::PC] = 0x18;
if ( fc::character[i][fc::UTF8] == fc::BlackDownPointingTriangle ) // ▼
fc::character[i][fc::PC] = 0x19;
if ( fc::character[i][fc::UTF8] == fc::InverseBullet // ◘
|| fc::character[i][fc::UTF8] == fc::InverseWhiteCircle // ◙
|| fc::character[i][fc::UTF8] == fc::UpDownArrow // ↕
|| fc::character[i][fc::UTF8] == fc::LeftRightArrow // ↔
|| fc::character[i][fc::UTF8] == fc::DoubleExclamationMark // ‼
|| fc::character[i][fc::UTF8] == fc::BlackRectangle // ▬
|| fc::character[i][fc::UTF8] == fc::RightwardsArrow // →
|| fc::character[i][fc::UTF8] == fc::Section // §
|| fc::character[i][fc::UTF8] == fc::SquareRoot ) // SquareRoot √
fc::character[i][fc::PC] = fc::character[i][fc::ASCII];
}
// General encoding changes
charSubstitution& sub_map = data->getCharSubstitutionMap();
sub_map[L''] = L'*';
sub_map[L''] = L'*';
sub_map[L''] = L'*';
sub_map[L''] = L'*';
sub_map[L''] = L'*';
sub_map[L''] = L'';
sub_map[L''] = L'x';
sub_map[L'ˣ'] = L'`';
}
//----------------------------------------------------------------------
void FTerm::init_fixed_max_color()
{
// Initialize maximum number of colors for known terminals
if ( isCygwinTerminal()
|| isPuttyTerminal()
|| isTeraTerm()
|| isRxvtTerminal() )
{
FTermcap::max_color = 16;
}
}
//----------------------------------------------------------------------
void FTerm::init_teraterm_charmap()
{
// Tera Term can't print ascii characters < 0x20
if ( ! isTeraTerm() )
return;
for (std::size_t i{0}; i <= fc::lastCharItem; i++ )
if ( fc::character[i][fc::PC] < 0x20 )
fc::character[i][fc::PC] = fc::character[i][fc::ASCII];
}
//----------------------------------------------------------------------
void FTerm::init_keyboard()
{
FKeyboard::init();
}
//----------------------------------------------------------------------
void FTerm::init_termcap()
{
// Initialize the terminal capabilities
FTermcap::init();
}
//----------------------------------------------------------------------
void FTerm::init_quirks()
{
// Initialize terminal quirks
FTermcapQuirks::terminalFixup(); // Fix terminal quirks
}
//----------------------------------------------------------------------
void FTerm::init_optiMove()
{
// Duration precalculation of the cursor movement strings
FOptiMove::termEnv optimove_env =
{
TCAP(fc::t_cursor_home),
TCAP(fc::t_carriage_return),
TCAP(fc::t_cursor_to_ll),
TCAP(fc::t_tab),
TCAP(fc::t_back_tab),
TCAP(fc::t_cursor_up),
TCAP(fc::t_cursor_down),
TCAP(fc::t_cursor_left),
TCAP(fc::t_cursor_right),
TCAP(fc::t_cursor_address),
TCAP(fc::t_column_address),
TCAP(fc::t_row_address),
TCAP(fc::t_parm_up_cursor),
TCAP(fc::t_parm_down_cursor),
TCAP(fc::t_parm_left_cursor),
TCAP(fc::t_parm_right_cursor),
TCAP(fc::t_erase_chars),
TCAP(fc::t_repeat_char),
TCAP(fc::t_clr_bol),
TCAP(fc::t_clr_eol),
FTermcap::tabstop,
FTermcap::automatic_left_margin,
FTermcap::eat_nl_glitch
};
opti_move->setTermEnvironment(optimove_env);
}
//----------------------------------------------------------------------
void FTerm::init_optiAttr()
{
// Setting video attribute optimization
FOptiAttr::termEnv optiattr_env =
{
TCAP(fc::t_enter_bold_mode),
TCAP(fc::t_exit_bold_mode),
TCAP(fc::t_enter_dim_mode),
TCAP(fc::t_exit_dim_mode),
TCAP(fc::t_enter_italics_mode),
TCAP(fc::t_exit_italics_mode),
TCAP(fc::t_enter_underline_mode),
TCAP(fc::t_exit_underline_mode),
TCAP(fc::t_enter_blink_mode),
TCAP(fc::t_exit_blink_mode),
TCAP(fc::t_enter_reverse_mode),
TCAP(fc::t_exit_reverse_mode),
TCAP(fc::t_enter_standout_mode),
TCAP(fc::t_exit_standout_mode),
TCAP(fc::t_enter_secure_mode),
TCAP(fc::t_exit_secure_mode),
TCAP(fc::t_enter_protected_mode),
TCAP(fc::t_exit_protected_mode),
TCAP(fc::t_enter_crossed_out_mode),
TCAP(fc::t_exit_crossed_out_mode),
TCAP(fc::t_enter_dbl_underline_mode),
TCAP(fc::t_exit_dbl_underline_mode),
TCAP(fc::t_set_attributes),
TCAP(fc::t_exit_attribute_mode),
TCAP(fc::t_enter_alt_charset_mode),
TCAP(fc::t_exit_alt_charset_mode),
TCAP(fc::t_enter_pc_charset_mode),
TCAP(fc::t_exit_pc_charset_mode),
TCAP(fc::t_set_a_foreground),
TCAP(fc::t_set_a_background),
TCAP(fc::t_set_foreground),
TCAP(fc::t_set_background),
TCAP(fc::t_orig_pair),
TCAP(fc::t_orig_pair),
TCAP(fc::t_orig_colors),
FTermcap::max_color,
FTermcap::attr_without_color,
FTermcap::ansi_default_color
};
opti_attr->setTermEnvironment(optiattr_env);
}
//----------------------------------------------------------------------
void FTerm::init_font()
{
if ( getStartOptions().vgafont && ! setVGAFont() )
exitWithMessage ("VGAfont is not supported by this terminal");
if ( getStartOptions().newfont && ! setNewFont() )
exitWithMessage ("Newfont is not supported by this terminal");
}
//----------------------------------------------------------------------
void FTerm::init_locale()
{
// Init current locale
const char* termtype = data->getTermType();
const char* locale_name = std::setlocale (LC_ALL, "");
std::setlocale (LC_NUMERIC, "");
// Get XTERM_LOCALE
const char* locale_xterm = std::getenv("XTERM_LOCALE");
// set LC_ALL to XTERM_LOCALE
if ( locale_xterm )
locale_name = std::setlocale (LC_ALL, locale_xterm);
// TeraTerm can not show UTF-8 character
if ( isTeraTerm() && ! std::strcmp(nl_langinfo(CODESET), "UTF-8") )
locale_name = std::setlocale (LC_ALL, "C");
// Kterm
if ( isKtermTerminal() && ! std::strcmp(nl_langinfo(CODESET), "UTF-8") )
locale_name = std::setlocale (LC_ALL, "C");
// Sun (color) workstation console can't show UTF-8 character
if ( std::strncmp(termtype, "sun", 3) == 0
&& ! std::strcmp(nl_langinfo(CODESET), "UTF-8") )
locale_name = std::setlocale (LC_ALL, "C");
// Try to found a meaningful content for locale_name
if ( locale_name )
locale_name = std::setlocale (LC_CTYPE, nullptr);
else
{
locale_name = std::getenv("LC_ALL");
if ( ! locale_name )
{
locale_name = std::getenv("LC_CTYPE");
if ( ! locale_name )
locale_name = std::getenv("LANG");
}
}
// Fallback to C
if ( ! locale_name )
std::setlocale (LC_ALL, "C");
}
//----------------------------------------------------------------------
void FTerm::init_encoding()
{
// detect encoding and set the putchar() function pointer
bool force_vt100{false}; // VT100 line drawing (G1 character set)
init_encoding_set();
if ( isRxvtTerminal() && ! isUrxvtTerminal() )
force_vt100 = true; // This rxvt terminal does not support utf-8
init_term_encoding();
init_pc_charset();
init_individual_term_encoding();
if ( force_vt100 )
init_force_vt100_encoding();
else
init_utf8_without_alt_charset();
init_tab_quirks();
if ( getStartOptions().encoding != fc::UNKNOWN )
{
setEncoding(getStartOptions().encoding);
}
}
//----------------------------------------------------------------------
inline void FTerm::init_encoding_set()
{
// Define the encoding set
auto& encoding_list = data->getEncodingList();
encoding_list["UTF8"] = fc::UTF8;
encoding_list["UTF-8"] = fc::UTF8;
encoding_list["VT100"] = fc::VT100; // VT100 line drawing
encoding_list["PC"] = fc::PC; // CP-437
encoding_list["ASCII"] = fc::ASCII;
}
//----------------------------------------------------------------------
void FTerm::init_term_encoding()
{
const int stdout_no = FTermios::getStdOut();
const char* termtype = data->getTermType();
if ( ! fsys )
getFSystem();
if ( fsys->isTTY(stdout_no)
&& ! std::strcmp(nl_langinfo(CODESET), "UTF-8") )
{
data->setUTF8Console(true);
data->setTermEncoding (fc::UTF8);
putchar() = &FTerm::putchar_UTF8; // function pointer
data->setUTF8(true);
setUTF8(true);
keyboard->enableUTF8();
}
else if ( fsys->isTTY(stdout_no)
&& (std::strlen(termtype) > 0)
&& (TCAP(fc::t_exit_alt_charset_mode) != nullptr) )
{
data->setVT100Console (true);
data->setTermEncoding (fc::VT100);
putchar() = &FTerm::putchar_ASCII; // function pointer
}
else
{
data->setASCIIConsole (true);
data->setTermEncoding (fc::ASCII);
putchar() = &FTerm::putchar_ASCII; // function pointer
}
}
//----------------------------------------------------------------------
void FTerm::init_individual_term_encoding()
{
if ( isNewFont()
|| (isPuttyTerminal() && ! data->isUTF8())
|| (isTeraTerm() && ! data->isUTF8()) )
{
data->setTermEncoding (fc::PC);
putchar() = &FTerm::putchar_ASCII; // function pointer
if ( hasUTF8() && getStartOptions().encoding == fc::UNKNOWN )
{
if ( isXTerminal() )
putchar() = &FTerm::putchar_UTF8; // function pointer
}
}
}
//----------------------------------------------------------------------
void FTerm::init_force_vt100_encoding()
{
data->setVT100Console(true);
data->setTermEncoding (fc::VT100);
putchar() = &FTerm::putchar_ASCII; // function pointer
}
//----------------------------------------------------------------------
void FTerm::init_utf8_without_alt_charset()
{
// Fall back to ascii for utf-8 terminals that
// do not support VT100 line drawings
if ( FTermcap::no_utf8_acs_chars && data->isUTF8()
&& data->getTermEncoding() == fc::VT100 )
{
data->setASCIIConsole(true);
data->setTermEncoding (fc::ASCII);
putchar() = &FTerm::putchar_ASCII; // function pointer
}
}
//----------------------------------------------------------------------
void FTerm::init_tab_quirks()
{
// In some alternative character sets, a tab character prints a '○'
// on the terminal and does not move the cursor to the next tab stop
// position
const auto& enc = data->getTermEncoding();
if ( enc == fc::VT100 || enc == fc::PC )
{
char* empty{nullptr};
opti_move->set_tabular (empty);
}
}
//----------------------------------------------------------------------
void FTerm::init_captureFontAndTitle()
{
// Save the used xterm font and window title
if ( ! FStartOptions::getFStartOptions().terminal_data_request )
return;
xterm->captureFontAndTitle();
const auto& font = xterm->getFont();
const auto& title = xterm->getTitle();
if ( ! font.isEmpty() )
data->setXtermFont(font);
if ( ! title.isEmpty() )
data->setXtermTitle(title);
}
//----------------------------------------------------------------------
inline bool FTerm::hasNoFontSettingOption()
{
if ( isGnomeTerminal()
|| isKdeTerminal()
|| isPuttyTerminal()
|| isTeraTerm()
|| isCygwinTerminal()
|| isMinttyTerm() )
return true;
return false;
}
//----------------------------------------------------------------------
void FTerm::redefineColorPalette()
{
// Redefine the color palette
if ( ! canChangeColorPalette() )
return;
resetColorMap();
saveColorMap();
if ( getMaxColor() >= 16 )
FColorPalette::set16ColorPalette (FTerm::setPalette);
else // 8 colors
FColorPalette::set8ColorPalette (FTerm::setPalette);
}
//----------------------------------------------------------------------
void FTerm::restoreColorPalette()
{
if ( ! canChangeColorPalette() )
return;
// Reset screen settings
if ( getMaxColor() >= 16 )
FColorPalette::reset16ColorPalette (FTerm::setPalette);
else // 8 colors
FColorPalette::reset8ColorPalette (FTerm::setPalette);
xterm->resetColorMap();
resetColorMap();
}
//----------------------------------------------------------------------
void FTerm::setInsertCursorStyle()
{
xterm->setCursorStyle (fc::blinking_underline);
setKDECursor(fc::UnderlineCursor);
#if defined(__linux__)
linux->setCursorStyle (fc::underscore_cursor);
#elif defined(__FreeBSD__) || defined(__DragonFly__) || defined(UNIT_TEST)
freebsd->setCursorStyle (fc::destructive_cursor);
#endif
if ( isUrxvtTerminal() )
xterm->setCursorColor ("rgb:ffff/ffff/ffff");
}
//----------------------------------------------------------------------
void FTerm::setOverwriteCursorStyle()
{
xterm->setCursorStyle (fc::steady_block);
setKDECursor(fc::BlockCursor);
#if defined(__linux__)
linux->setCursorStyle (fc::full_block_cursor);
#elif defined(__FreeBSD__) || defined(__DragonFly__) || defined(UNIT_TEST)
freebsd->setCursorStyle (fc::normal_cursor);
#endif
if ( isUrxvtTerminal() )
xterm->setCursorColor ("rgb:eeee/0000/0000");
}
//----------------------------------------------------------------------
char* FTerm::enableCursorString()
{
// Returns the cursor enable string
static constexpr std::size_t SIZE = 32;
static char enable_str[SIZE]{};
const auto& vs = TCAP(fc::t_cursor_visible);
const auto& ve = TCAP(fc::t_cursor_normal);
if ( ve )
std::strncpy (enable_str, ve, SIZE - 1);
else if ( vs )
std::strncpy (enable_str, vs, SIZE - 1);
#if defined(__linux__)
if ( isLinuxTerm() )
{
// Restore the last used Linux console cursor style
const char* cstyle = linux->getCursorStyleString();
std::strncat (enable_str, cstyle, SIZE - std::strlen(enable_str) - 1);
}
#endif // defined(__linux__)
enable_str[SIZE - 1] = '\0';
#if defined(__FreeBSD__) || defined(__DragonFly__) || defined(UNIT_TEST)
if ( isFreeBSDTerm() )
{
// Restore the last used FreeBSD console cursor style
freebsd->setCursorStyle (freebsd->getCursorStyle());
}
#endif // defined(__FreeBSD__) || defined(__DragonFly__) || defined(UNIT_TEST)
return enable_str;
}
//----------------------------------------------------------------------
char* FTerm::disableCursorString()
{
// Returns the cursor disable string
const auto& vi = TCAP(fc::t_cursor_invisible);
if ( vi )
return vi;
return nullptr;
}
//----------------------------------------------------------------------
void FTerm::enableMouse()
{
// Enable the terminal mouse support
if ( ! getStartOptions().mouse_support )
return;
bool gpm_mouse{false};
bool xterm_mouse{false};
#if defined(__linux__)
if ( isLinuxTerm() && openConsole() == 0 )
{
if ( linux->isLinuxConsole() )
gpm_mouse = true;
closeConsole();
}
#endif // defined(__linux__)
if ( TCAP(fc::t_key_mouse) && ! isLinuxTerm() )
xterm_mouse = true;
keyboard->enableMouseSequences();
mouse->setMaxWidth (uInt16(getColumnNumber()));
mouse->setMaxHeight (uInt16(getLineNumber()));
// Enable the linux general purpose mouse (gpm) server
mouse->useGpmMouse (gpm_mouse);
// Enable xterm mouse support
mouse->useXtermMouse (xterm_mouse);
mouse->enable();
}
//----------------------------------------------------------------------
inline void FTerm::disableMouse()
{
// Disable the terminal mouse support
keyboard->disableMouseSequences();
mouse->disable();
}
//----------------------------------------------------------------------
inline void FTerm::enableKeypad()
{
// Enter 'keyboard_transmit' mode
if ( TCAP(fc::t_keypad_xmit) )
{
putstring (TCAP(fc::t_keypad_xmit));
std::fflush(stdout);
}
}
//----------------------------------------------------------------------
inline void FTerm::disableKeypad()
{
// Leave 'keyboard_transmit' mode
if ( TCAP(fc::t_keypad_local) )
{
putstring (TCAP(fc::t_keypad_local));
std::fflush(stdout);
}
}
//----------------------------------------------------------------------
inline void FTerm::enableAlternateCharset()
{
// Enable alternate charset
if ( TCAP(fc::t_enable_acs) )
{
putstring (TCAP(fc::t_enable_acs));
std::fflush(stdout);
}
}
//----------------------------------------------------------------------
inline void FTerm::enableApplicationEscKey()
{
// switch to application escape key mode
if ( isMinttyTerm() )
FTerm::putstring (CSI "?7727h");
}
//----------------------------------------------------------------------
inline void FTerm::disableApplicationEscKey()
{
// Switch to normal escape key mode
if ( isMinttyTerm() )
putstring (CSI "?7727l");
}
//----------------------------------------------------------------------
void FTerm::useAlternateScreenBuffer()
{
// Switch to the alternate screen
if ( ! hasAlternateScreen() )
return;
// Save current cursor position
if ( TCAP(fc::t_save_cursor) )
{
putstring (TCAP(fc::t_save_cursor));
std::fflush(stdout);
}
// Saves the screen and the cursor position
if ( TCAP(fc::t_enter_ca_mode) )
{
putstring (TCAP(fc::t_enter_ca_mode));
std::fflush(stdout);
}
}
//----------------------------------------------------------------------
void FTerm::useNormalScreenBuffer()
{
// Switch to the normal screen
if ( ! hasAlternateScreen() )
return;
// restores the screen and the cursor position
if ( TCAP(fc::t_exit_ca_mode) )
{
putstring (TCAP(fc::t_exit_ca_mode));
std::fflush(stdout);
}
// restore cursor to position of last save_cursor
if ( TCAP(fc::t_restore_cursor) )
{
putstring (TCAP(fc::t_restore_cursor));
std::fflush(stdout);
}
}
//----------------------------------------------------------------------
inline void FTerm::allocationValues()
{
FStartOptions::getFStartOptions();
getFTermData();
getFSystem();
getFOptiMove();
getFOptiAttr();
getFTermDetection();
getFTermXTerminal();
getFKeyboard();
getFMouseControl();
#if defined(__linux__)
getFTermLinux();
#elif defined(__FreeBSD__) || defined(__DragonFly__) || defined(UNIT_TEST)
getFTermFreeBSD();
#elif defined(__NetBSD__) || defined(__OpenBSD__) || defined(UNIT_TEST)
getFTermOpenBSD();
#endif
#if DEBUG
getFTermDebugData();
#endif
}
//----------------------------------------------------------------------
inline void FTerm::deallocationValues()
{
#if DEBUG
if ( debug_data )
delete debug_data;
#endif
#if defined(__NetBSD__) || defined(__OpenBSD__) || defined(UNIT_TEST)
if ( openbsd )
delete openbsd;
#elif defined(__FreeBSD__) || defined(__DragonFly__) || defined(UNIT_TEST)
if ( freebsd )
delete freebsd;
#elif defined(__linux__)
if ( linux )
delete linux;
#endif
if ( mouse )
delete mouse;
if ( keyboard )
delete keyboard;
if ( xterm )
delete xterm;
if ( term_detection )
delete term_detection;
if ( opti_attr )
delete opti_attr;
if ( opti_move )
delete opti_move;
if ( fsys )
delete fsys;
if ( data )
delete data;
const defaultPutChar* putchar_ptr = &(putchar());
delete putchar_ptr;
FStartOptions::destroyObject();
}
//----------------------------------------------------------------------
void FTerm::init (bool disable_alt_screen)
{
init_term_object = this;
// Initialize global values for all objects
allocationValues();
init_global_values(disable_alt_screen);
// Initialize the terminal
if ( ! init_terminal() )
return;
// Set maximum number of colors for detected terminals
init_fixed_max_color();
// Initializes variables for the current terminal
init_termcap();
// Initialize terminal quirks
init_quirks();
// Initialize cursor movement optimization
init_optiMove();
// Initialize video attributes optimization
init_optiAttr();
// Initialize vt100 alternate character set
init_alt_charset();
// Pass the terminal capabilities to the keyboard object
keyboard->setTermcapMap (fc::fkey);
// Initializes locale information
init_locale();
// Detect environment and set encoding
init_encoding();
// Initializes keyboard settings
init_keyboard();
// Enable the terminal mouse support
enableMouse();
// Activate meta key sends escape
if ( isXTerminal() )
xterm->metaSendsESC(true);
// switch to application escape key mode
enableApplicationEscKey();
// Enter 'keyboard_transmit' mode
enableKeypad();
// Switch to the alternate screen
useAlternateScreenBuffer();
// Enable alternate charset
enableAlternateCharset();
// Save the used xterm font and window title
init_captureFontAndTitle();
// KDE terminal cursor and cygwin + teraterm charmap correction
initTermspecifics();
// Redefine the color palette
if ( getStartOptions().color_change )
redefineColorPalette();
// Set 220 Hz beep (100 ms)
setBeep(220, 100);
// Set FTerm signal handler
setSignalHandler();
if ( ! getStartOptions().cursor_optimisation )
data->supportCursorOptimisation(false);
// Activate the VGA or the new graphic font
// (depending on the initialization values)
init_font();
// Turn off hardware echo
FTermios::unsetHardwareEcho();
// Switch to the raw mode
FTermios::setRawMode();
// The terminal is now initialized
term_initialized = true;
}
//----------------------------------------------------------------------
bool FTerm::init_terminal()
{
// Initialize termios
FTermios::init();
// Check if stdin is a tty
if ( ! fsys->isTTY(FTermios::getStdIn()) )
{
data->setExitMessage("FTerm: Standard input is not a TTY.");
FApplication::exit(EXIT_FAILURE);
return false;
}
// Get pathname of the terminal device
init_terminal_device_path();
// Initialize Linux or *BSD console
initOSspecifics();
// Save termios settings
try
{
FTermios::storeTTYsettings();
}
catch (const std::runtime_error& ex)
{
FString msg = "FTerm: " + FString(ex.what());
data->setExitMessage(msg);
FApplication::exit(EXIT_FAILURE);
return false;
}
// Get output baud rate
initBaudRate();
// Terminal detection
FTermDetection::detect();
setTermType (term_detection->getTermType());
return true;
}
//----------------------------------------------------------------------
void FTerm::initOSspecifics()
{
#if defined(__linux__)
linux->init(); // Initialize Linux console
#if DEBUG
data->setFramebufferBpp (linux->getFramebufferBpp());
#endif
#endif // defined(__linux__)
#if defined(__FreeBSD__) || defined(__DragonFly__) || defined(UNIT_TEST)
if ( getStartOptions().meta_sends_escape )
freebsd->enableMetaSendsEscape();
else
freebsd->disableMetaSendsEscape();
if ( getStartOptions().change_cursorstyle )
freebsd->enableChangeCursorStyle();
else
freebsd->disableChangeCursorStyle();
freebsd->init(); // Initialize BSD console
#elif defined(__NetBSD__) || defined(__OpenBSD__) || defined(UNIT_TEST)
if ( getStartOptions().meta_sends_escape )
openbsd->enableMetaSendsEscape();
else
openbsd->disableMetaSendsEscape();
openbsd->init(); // Initialize wscons console
#endif
}
//----------------------------------------------------------------------
void FTerm::initTermspecifics()
{
if ( isKdeTerminal() )
setKDECursor(fc::UnderlineCursor);
if ( isCygwinTerminal() )
init_cygwin_charmap();
if ( isTeraTerm() )
init_teraterm_charmap();
}
//----------------------------------------------------------------------
void FTerm::initBaudRate()
{
const int stdout_no = FTermios::getStdOut();
const uInt baud = FTermios::getBaudRate();
data->setBaudrate(baud);
if ( ! fsys )
getFSystem();
if ( fsys->isTTY(stdout_no) )
opti_move->setBaudRate(int(baud));
}
//----------------------------------------------------------------------
void FTerm::finish()
{
// Set default signal handler
const auto& title = data->getXtermTitle();
resetSignalHandler();
if ( title && isXTerminal() && ! isRxvtTerminal() )
setTermTitle (title);
// Restore the saved termios settings
FTermios::restoreTTYsettings();
// Turn off all attributes
if ( TCAP(fc::t_exit_attribute_mode) )
{
putstring (TCAP(fc::t_exit_attribute_mode));
std::fflush(stdout);
}
// Turn off pc charset mode
if ( TCAP(fc::t_exit_pc_charset_mode) )
{
putstring (TCAP(fc::t_exit_pc_charset_mode));
std::fflush(stdout);
}
// Reset xterm color settings to default values
xterm->resetDefaults();
// Set xterm full block cursor
xterm->setCursorStyle (fc::steady_block);
// Restore the color palette
if ( getStartOptions().color_change )
restoreColorPalette();
// Switch to normal escape key mode
disableApplicationEscKey();
finishOSspecifics1();
if ( isKdeTerminal() )
setKDECursor(fc::BlockCursor);
resetBeep();
// Disable the terminal mouse support
if ( getStartOptions().mouse_support )
disableMouse();
// Deactivate meta key sends escape
if ( isXTerminal() )
xterm->metaSendsESC(false);
// Switch to the normal screen
useNormalScreenBuffer();
// leave 'keyboard_transmit' mode
disableKeypad();
finish_encoding();
if ( data->isNewFont() || data->isVGAFont() )
setOldFont();
// Print exit message
const auto& exit_message = data->getExitMessage();
if ( ! exit_message.isEmpty() )
std::cerr << exit_message << std::endl;
deallocationValues();
}
//----------------------------------------------------------------------
void FTerm::finishOSspecifics1()
{
#if defined(__linux__)
linux->finish();
#elif defined(__FreeBSD__) || defined(__DragonFly__) || defined(UNIT_TEST)
freebsd->finish();
#elif defined(__NetBSD__) || defined(__OpenBSD__) || defined(UNIT_TEST)
openbsd->finish();
#endif
}
//----------------------------------------------------------------------
void FTerm::finish_encoding()
{
#if defined(__linux__)
if ( isLinuxTerm() && data->hasUTF8Console() )
setUTF8(true);
#endif
}
//----------------------------------------------------------------------
void FTerm::setSignalHandler()
{
signal(SIGTERM, FTerm::signal_handler); // Termination signal
signal(SIGQUIT, FTerm::signal_handler); // Quit from keyboard (Ctrl-\)
signal(SIGINT, FTerm::signal_handler); // Keyboard interrupt (Ctrl-C)
signal(SIGABRT, FTerm::signal_handler); // Abort signal from abort(3)
signal(SIGILL, FTerm::signal_handler); // Illegal Instruction
signal(SIGSEGV, FTerm::signal_handler); // Invalid memory reference
signal(SIGWINCH, FTerm::signal_handler); // Window resize signal
}
//----------------------------------------------------------------------
void FTerm::resetSignalHandler()
{
signal(SIGWINCH, SIG_DFL); // Window resize signal
signal(SIGSEGV, SIG_DFL); // Invalid memory reference
signal(SIGILL, SIG_DFL); // Illegal Instruction
signal(SIGABRT, SIG_DFL); // Abort signal from abort(3)
signal(SIGINT, SIG_DFL); // Keyboard interrupt (Ctrl-C)
signal(SIGQUIT, SIG_DFL); // Quit from keyboard (Ctrl-\)
signal(SIGTERM, SIG_DFL); // Termination signal
}
//----------------------------------------------------------------------
void FTerm::signal_handler (int signum)
{
switch (signum)
{
case SIGWINCH:
if ( ! data )
break;
if ( data->hasTermResized() )
break;
// initialize a resize event to the root element
data->setTermResized(true);
break;
case SIGTERM:
case SIGQUIT:
case SIGINT:
case SIGABRT:
case SIGILL:
case SIGSEGV:
init_term_object->finish();
std::fflush (stderr);
std::fflush (stdout);
std::cerr << "\nProgram stopped: signal "
<< signum
<< " (" << strsignal(signum) << ")" << std::endl;
std::terminate();
}
}
} // namespace finalcut