diff options
Diffstat (limited to 'client/browser/qtermwidget/src/Emulation.cpp')
| -rw-r--r-- | client/browser/qtermwidget/src/Emulation.cpp | 543 |
1 files changed, 0 insertions, 543 deletions
diff --git a/client/browser/qtermwidget/src/Emulation.cpp b/client/browser/qtermwidget/src/Emulation.cpp deleted file mode 100644 index e767a420..00000000 --- a/client/browser/qtermwidget/src/Emulation.cpp +++ /dev/null @@ -1,543 +0,0 @@ -/* - This file is part of Konsole, an X terminal. - - Copyright (C) 2007 Robert Knight <robertknight@gmail.com> - Copyright (C) 1997,1998 by Lars Doelle <lars.doelle@on-line.de> - Copyright (C) 1996 by Matthias Ettrich <ettrich@kde.org> - - Rewritten for QT4 by e_k <e_k at users.sourceforge.net>, Copyright (C)2008 - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - 02110-1301 USA. -*/ - -// Own -#include "Emulation.h" - -// System -#include <assert.h> -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> - -// Qt -#include <QtGui/QApplication> -#include <QtGui/QClipboard> -#include <QtCore/QHash> -#include <QtGui/QKeyEvent> -#include <QtCore/QRegExp> -#include <QtCore/QTextStream> -#include <QtCore/QThread> - -#include <QtCore/QTime> - -// Konsole -#include "KeyboardTranslator.h" -#include "Screen.h" -#include "TerminalCharacterDecoder.h" -#include "ScreenWindow.h" - -using namespace Konsole; - -/* ------------------------------------------------------------------------- */ -/* */ -/* Emulation */ -/* */ -/* ------------------------------------------------------------------------- */ - -//#define CNTL(c) ((c)-'@') - -/*! -*/ - -Emulation::Emulation() : - _currentScreen(0), - _codec(0), - _decoder(0), - _keyTranslator(0), - _usesMouse(false) -{ - - // create screens with a default size - _screen[0] = new Screen(40,80); - _screen[1] = new Screen(40,80); - _currentScreen = _screen[0]; - - QObject::connect(&_bulkTimer1, SIGNAL(timeout()), this, SLOT(showBulk()) ); - QObject::connect(&_bulkTimer2, SIGNAL(timeout()), this, SLOT(showBulk()) ); - - // listen for mouse status changes - connect( this , SIGNAL(programUsesMouseChanged(bool)) , - SLOT(usesMouseChanged(bool)) ); -} - -bool Emulation::programUsesMouse() const -{ - return _usesMouse; -} - -void Emulation::usesMouseChanged(bool usesMouse) -{ - _usesMouse = usesMouse; -} - -ScreenWindow* Emulation::createWindow() -{ - ScreenWindow* window = new ScreenWindow(); - window->setScreen(_currentScreen); - _windows << window; - - connect(window , SIGNAL(selectionChanged()), - this , SLOT(bufferedUpdate())); - - connect(this , SIGNAL(outputChanged()), - window , SLOT(notifyOutputChanged()) ); - return window; -} - -/*! -*/ - -Emulation::~Emulation() -{ - QListIterator<ScreenWindow*> windowIter(_windows); - - while (windowIter.hasNext()) - { - delete windowIter.next(); - } - - delete _screen[0]; - delete _screen[1]; - delete _decoder; -} - -/*! change between primary and alternate _screen -*/ - -void Emulation::setScreen(int n) -{ - Screen *old = _currentScreen; - _currentScreen = _screen[n&1]; - if (_currentScreen != old) - { - old->setBusySelecting(false); - - // tell all windows onto this emulation to switch to the newly active _screen - QListIterator<ScreenWindow*> windowIter(_windows); - while ( windowIter.hasNext() ) - { - windowIter.next()->setScreen(_currentScreen); - } - } -} - -void Emulation::clearHistory() -{ - _screen[0]->setScroll( _screen[0]->getScroll() , false ); -} -void Emulation::setHistory(const HistoryType& t) -{ - _screen[0]->setScroll(t); - - showBulk(); -} - -const HistoryType& Emulation::history() -{ - return _screen[0]->getScroll(); -} - -void Emulation::setCodec(const QTextCodec * qtc) -{ - Q_ASSERT( qtc ); - - _codec = qtc; - delete _decoder; - _decoder = _codec->makeDecoder(); - - emit useUtf8Request(utf8()); -} - -void Emulation::setCodec(EmulationCodec codec) -{ - if ( codec == Utf8Codec ) - setCodec( QTextCodec::codecForName("utf8") ); - else if ( codec == LocaleCodec ) - setCodec( QTextCodec::codecForLocale() ); -} - -void Emulation::setKeyBindings(const QString& name) -{ - _keyTranslator = KeyboardTranslatorManager::instance()->findTranslator(name); -} - -QString Emulation::keyBindings() -{ - return _keyTranslator->name(); -} - - -// Interpreting Codes --------------------------------------------------------- - -/* - This section deals with decoding the incoming character stream. - Decoding means here, that the stream is first separated into `tokens' - which are then mapped to a `meaning' provided as operations by the - `Screen' class. -*/ - -/*! -*/ - -void Emulation::receiveChar(int c) -// process application unicode input to terminal -// this is a trivial scanner -{ - c &= 0xff; - switch (c) - { - case '\b' : _currentScreen->BackSpace(); break; - case '\t' : _currentScreen->Tabulate(); break; - case '\n' : _currentScreen->NewLine(); break; - case '\r' : _currentScreen->Return(); break; - case 0x07 : emit stateSet(NOTIFYBELL); - break; - default : _currentScreen->ShowCharacter(c); break; - }; -} - -/* ------------------------------------------------------------------------- */ -/* */ -/* Keyboard Handling */ -/* */ -/* ------------------------------------------------------------------------- */ - -/*! -*/ - -void Emulation::sendKeyEvent( QKeyEvent* ev ) -{ - emit stateSet(NOTIFYNORMAL); - - if (!ev->text().isEmpty()) - { // A block of text - // Note that the text is proper unicode. - // We should do a conversion here, but since this - // routine will never be used, we simply emit plain ascii. - //emit sendBlock(ev->text().toAscii(),ev->text().length()); - emit sendData(ev->text().toUtf8(),ev->text().length()); - } -} - -void Emulation::sendString(const char*,int) -{ - // default implementation does nothing -} - -void Emulation::sendMouseEvent(int /*buttons*/, int /*column*/, int /*row*/, int /*eventType*/) -{ - // default implementation does nothing -} - -// Unblocking, Byte to Unicode translation --------------------------------- -- - -/* - We are doing code conversion from locale to unicode first. -TODO: Character composition from the old code. See #96536 -*/ - -void Emulation::receiveData(const char* text, int length) -{ - emit stateSet(NOTIFYACTIVITY); - - bufferedUpdate(); - - QString unicodeText = _decoder->toUnicode(text,length); - - //send characters to terminal emulator - for (int i=0;i<unicodeText.length();i++) - { - receiveChar(unicodeText[i].unicode()); - } - - //look for z-modem indicator - //-- someone who understands more about z-modems that I do may be able to move - //this check into the above for loop? - for (int i=0;i<length;i++) - { - if (text[i] == '\030') - { - if ((length-i-1 > 3) && (strncmp(text+i+1, "B00", 3) == 0)) - emit zmodemDetected(); - } - } -} - -//OLDER VERSION -//This version of onRcvBlock was commented out because -// a) It decoded incoming characters one-by-one, which is slow in the current version of Qt (4.2 tech preview) -// b) It messed up decoding of non-ASCII characters, with the result that (for example) chinese characters -// were not printed properly. -// -//There is something about stopping the _decoder if "we get a control code halfway a multi-byte sequence" (see below) -//which hasn't been ported into the newer function (above). Hopefully someone who understands this better -//can find an alternative way of handling the check. - - -/*void Emulation::onRcvBlock(const char *s, int len) -{ - emit notifySessionState(NOTIFYACTIVITY); - - bufferedUpdate(); - for (int i = 0; i < len; i++) - { - - QString result = _decoder->toUnicode(&s[i],1); - int reslen = result.length(); - - // If we get a control code halfway a multi-byte sequence - // we flush the _decoder and continue with the control code. - if ((s[i] < 32) && (s[i] > 0)) - { - // Flush _decoder - while(!result.length()) - result = _decoder->toUnicode(&s[i],1); - reslen = 1; - result.resize(reslen); - result[0] = QChar(s[i]); - } - - for (int j = 0; j < reslen; j++) - { - if (result[j].characterategory() == QChar::Mark_NonSpacing) - _currentScreen->compose(result.mid(j,1)); - else - onRcvChar(result[j].unicode()); - } - if (s[i] == '\030') - { - if ((len-i-1 > 3) && (strncmp(s+i+1, "B00", 3) == 0)) - emit zmodemDetected(); - } - } -}*/ - -// Selection --------------------------------------------------------------- -- - -#if 0 -void Emulation::onSelectionBegin(const int x, const int y, const bool columnmode) { - if (!connected) return; - _currentScreen->setSelectionStart( x,y,columnmode); - showBulk(); -} - -void Emulation::onSelectionExtend(const int x, const int y) { - if (!connected) return; - _currentScreen->setSelectionEnd(x,y); - showBulk(); -} - -void Emulation::setSelection(const bool preserve_line_breaks) { - if (!connected) return; - QString t = _currentScreen->selectedText(preserve_line_breaks); - if (!t.isNull()) - { - QListIterator< TerminalDisplay* > viewIter(_views); - - while (viewIter.hasNext()) - viewIter.next()->setSelection(t); - } -} - -void Emulation::testIsSelected(const int x, const int y, bool &selected) -{ - if (!connected) return; - selected=_currentScreen->isSelected(x,y); -} - -void Emulation::clearSelection() { - if (!connected) return; - _currentScreen->clearSelection(); - showBulk(); -} - -#endif - -void Emulation::writeToStream( TerminalCharacterDecoder* _decoder , - int startLine , - int endLine) -{ - _currentScreen->writeToStream(_decoder,startLine,endLine); -} - -int Emulation::lineCount() -{ - // sum number of lines currently on _screen plus number of lines in history - return _currentScreen->getLines() + _currentScreen->getHistLines(); -} - -// Refreshing -------------------------------------------------------------- -- - -#define BULK_TIMEOUT1 10 -#define BULK_TIMEOUT2 40 - -/*! -*/ -void Emulation::showBulk() -{ - _bulkTimer1.stop(); - _bulkTimer2.stop(); - - emit outputChanged(); - - _currentScreen->resetScrolledLines(); - _currentScreen->resetDroppedLines(); -} - -void Emulation::bufferedUpdate() -{ - _bulkTimer1.setSingleShot(true); - _bulkTimer1.start(BULK_TIMEOUT1); - if (!_bulkTimer2.isActive()) - { - _bulkTimer2.setSingleShot(true); - _bulkTimer2.start(BULK_TIMEOUT2); - } -} - -char Emulation::getErase() const -{ - return '\b'; -} - -void Emulation::setImageSize(int lines, int columns) -{ - //kDebug() << "Resizing image to: " << lines << "by" << columns << QTime::currentTime().msec(); - Q_ASSERT( lines > 0 ); - Q_ASSERT( columns > 0 ); - - _screen[0]->resizeImage(lines,columns); - _screen[1]->resizeImage(lines,columns); - - emit imageSizeChanged(lines,columns); - - bufferedUpdate(); -} - -QSize Emulation::imageSize() -{ - return QSize(_currentScreen->getColumns(), _currentScreen->getLines()); -} - -ushort ExtendedCharTable::extendedCharHash(ushort* unicodePoints , ushort length) const -{ - ushort hash = 0; - for ( ushort i = 0 ; i < length ; i++ ) - { - hash = 31*hash + unicodePoints[i]; - } - return hash; -} -bool ExtendedCharTable::extendedCharMatch(ushort hash , ushort* unicodePoints , ushort length) const -{ - ushort* entry = extendedCharTable[hash]; - - // compare given length with stored sequence length ( given as the first ushort in the - // stored buffer ) - if ( entry == 0 || entry[0] != length ) - return false; - // if the lengths match, each character must be checked. the stored buffer starts at - // entry[1] - for ( int i = 0 ; i < length ; i++ ) - { - if ( entry[i+1] != unicodePoints[i] ) - return false; - } - return true; -} -ushort ExtendedCharTable::createExtendedChar(ushort* unicodePoints , ushort length) -{ - // look for this sequence of points in the table - ushort hash = extendedCharHash(unicodePoints,length); - - // check existing entry for match - while ( extendedCharTable.contains(hash) ) - { - if ( extendedCharMatch(hash,unicodePoints,length) ) - { - // this sequence already has an entry in the table, - // return its hash - return hash; - } - else - { - // if hash is already used by another, different sequence of unicode character - // points then try next hash - hash++; - } - } - - - // add the new sequence to the table and - // return that index - ushort* buffer = new ushort[length+1]; - buffer[0] = length; - for ( int i = 0 ; i < length ; i++ ) - buffer[i+1] = unicodePoints[i]; - - extendedCharTable.insert(hash,buffer); - - return hash; -} - -ushort* ExtendedCharTable::lookupExtendedChar(ushort hash , ushort& length) const -{ - // lookup index in table and if found, set the length - // argument and return a pointer to the character sequence - - ushort* buffer = extendedCharTable[hash]; - if ( buffer ) - { - length = buffer[0]; - return buffer+1; - } - else - { - length = 0; - return 0; - } -} - -ExtendedCharTable::ExtendedCharTable() -{ -} -ExtendedCharTable::~ExtendedCharTable() -{ - // free all allocated character buffers - QHashIterator<ushort,ushort*> iter(extendedCharTable); - while ( iter.hasNext() ) - { - iter.next(); - delete[] iter.value(); - } -} - -// global instance -ExtendedCharTable ExtendedCharTable::instance; - - -//#include "moc_Emulation.cpp" - |