/
terminal.cpp
1398 lines (1229 loc) · 39.5 KB
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terminal.cpp
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/*
Copyright 2011-2012 Heikki Holstila <heikki.holstila@gmail.com>
This file is part of FingerTerm.
FingerTerm 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.
FingerTerm 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 FingerTerm. If not, see <http://www.gnu.org/licenses/>.
*/
#include <QApplication>
#include <QClipboard>
#include "terminal.h"
#include "ptyiface.h"
#include "textrender.h"
#include "util.h"
Terminal::Terminal(QObject *parent) :
QObject(parent), iRenderer(0), iPtyIFace(0), iWindow(0), iUtil(0),
iTermSize(0,0), iEmitCursorChangeSignal(true),
iShowCursor(true), iUseAltScreenBuffer(false), iAppCursorKeys(false)
{
zeroChar.c = ' ';
zeroChar.bgColor = defaultBgColor;
zeroChar.fgColor = defaultFgColor;
zeroChar.attrib = 0;
escape = -1;
iTermAttribs.currentFgColor = defaultFgColor;
iTermAttribs.currentBgColor = defaultBgColor;
iTermAttribs.currentAttrib = 0;
iTermAttribs.cursorPos = QPoint(0,0);
iMarginBottom = 0;
iMarginTop = 0;
resetBackBufferScrollPos();
iTermAttribs_saved = iTermAttribs;
iTermAttribs_saved_alt = iTermAttribs;
resetTerminal();
}
void Terminal::setRenderer(TextRender* tr)
{
iRenderer = tr;
if(tr) {
tr->updateTermSize();
connect(this, SIGNAL(displayBufferChanged()), tr, SLOT(redraw()));
connect(this, SIGNAL(cursorPosChanged(QPoint)), tr, SLOT(redraw()));
connect(this, SIGNAL(termSizeChanged(QSize)), tr, SLOT(redraw()));
} else {
qDebug() << "warning: null text renderer";
}
}
void Terminal::setPtyIFace(PtyIFace *pty)
{
iPtyIFace = pty;
if(!pty) {
qDebug() << "warning: null pty iface";
}
}
void Terminal::setCursorPos(QPoint pos)
{
if( iTermAttribs.cursorPos != pos ) {
int tlimit = 1;
int blimit = iTermSize.height();
if(iTermAttribs.originMode) {
tlimit = iMarginTop;
blimit = iMarginBottom;
}
if(pos.x() < 1)
pos.setX(1);
if(pos.x() > iTermSize.width()+1)
pos.setX(iTermSize.width()+1);
if(pos.y() < tlimit)
pos.setY(tlimit);
if(pos.y() > blimit)
pos.setY(blimit);
iTermAttribs.cursorPos=pos;
if(iEmitCursorChangeSignal)
emit cursorPosChanged(pos);
}
}
QPoint Terminal::cursorPos()
{
return iTermAttribs.cursorPos;
}
bool Terminal::showCursor()
{
if(iBackBufferScrollPos != 0)
return false;
return iShowCursor;
}
QList<QList<TermChar> >& Terminal::buffer()
{
if(iUseAltScreenBuffer)
return iAltBuffer;
return iBuffer;
}
void Terminal::setTermSize(QSize size)
{
if( iTermSize != size ) {
iMarginTop = 1;
iMarginBottom = size.height();
iTermSize=size;
resetTabs();
emit termSizeChanged(size);
}
}
void Terminal::putString(QString str, bool unEscape)
{
if (unEscape) {
str.replace("\\r", "\r");
str.replace("\\n", "\n");
str.replace("\\e", QChar(ch_ESC));
str.replace("\\b", "\b");
str.replace("\\t", "\t");
while(str.indexOf("\\x") != -1) {
int i = str.indexOf("\\x")+2;
QString num;
while(num.length() < 2 && str.length()>i && str.at(i).isNumber() ) {
num.append(str.at(i));
i++;
}
str.remove(i-2-num.length(), num.length()+2);
bool ok;
str.insert(i-2-num.length(), QChar(num.toInt(&ok,16)));
}
while(str.indexOf("\\0") != -1) {
int i = str.indexOf("\\0")+2;
QString num;
while(num.length() < 3 && str.length()>i && str.at(i).isNumber() ) {
num.append(str.at(i));
i++;
}
str.remove(i-2-num.length(), num.length()+2);
bool ok;
str.insert(i-2-num.length(), QChar(num.toInt(&ok,8)));
}
}
if(iPtyIFace)
iPtyIFace->writeTerm(str);
}
void Terminal::keyPress(int key, int modifiers)
{
QChar c(key);
//qDebug() << key;
resetBackBufferScrollPos();
if(c.isLetter() && (modifiers & Qt::ShiftModifier))
c = c.toUpper();
else if(c.isLetter())
c = c.toLower();
QString toWrite;
if( key <= 0xFF ) {
char asciiVal = c.toAscii();
if(modifiers & Qt::AltModifier)
toWrite.append(ch_ESC);
if((modifiers & Qt::ControlModifier) && c.isLower())
asciiVal -= 0x60;
if((modifiers & Qt::ControlModifier) && c.isUpper())
asciiVal -= 0x40;
toWrite.append(asciiVal);
if(iPtyIFace)
iPtyIFace->writeTerm(toWrite);
return;
}
char cursorModif='[';
if(iAppCursorKeys)
cursorModif = 'O';
if( key==Qt::Key_Up )
toWrite += QString("%1%2A").arg(ch_ESC).arg(cursorModif).toAscii();
if( key==Qt::Key_Down )
toWrite += QString("%1%2B").arg(ch_ESC).arg(cursorModif).toAscii();
if( key==Qt::Key_Right )
toWrite += QString("%1%2C").arg(ch_ESC).arg(cursorModif).toAscii();
if( key==Qt::Key_Left )
toWrite += QString("%1%2D").arg(ch_ESC).arg(cursorModif).toAscii();
if( key==Qt::Key_Enter || key==Qt::Key_Return ) {
if(iNewLineMode)
toWrite += "\r\n";
else
toWrite += "\r";
}
if( key==Qt::Key_Backspace )
toWrite += "\x7F";
if( key==Qt::Key_Tab )
toWrite = "\t";
if( key==Qt::Key_PageUp )
toWrite += QString("%1[5~").arg(ch_ESC).toAscii();
if( key==Qt::Key_PageDown )
toWrite += QString("%1[6~").arg(ch_ESC).toAscii();
if( key==Qt::Key_Home )
toWrite += QString("%1OH").arg(ch_ESC).toAscii();
if( key==Qt::Key_End )
toWrite += QString("%1OF").arg(ch_ESC).toAscii();
if( key==Qt::Key_Delete )
toWrite += QString("%1[3~").arg(ch_ESC).toAscii();
if( key==Qt::Key_Escape ) {
toWrite += QString(1,ch_ESC);
}
if(iPtyIFace)
iPtyIFace->writeTerm(toWrite);
}
void Terminal::insertInBuffer(const QString& chars)
{
if(iTermSize.isNull()) {
qDebug() << "null size terminal";
return;
}
iEmitCursorChangeSignal = false;
for(int i=0; i<chars.size(); i++) {
QChar ch = chars.at(i);
if(ch.toAscii()=='\n' || ch.toAscii()==11 || ch.toAscii()==12) { // line feed, vertical tab or form feed
if(cursorPos().y()==iMarginBottom) {
scrollFwd(1);
if(iNewLineMode)
setCursorPos(QPoint(1,cursorPos().y()));
}
else if(cursorPos().x() <= termSize().width()) // ignore newline after <termwidth> cols (terminfo: xenl)
{
if(iNewLineMode)
setCursorPos(QPoint(1,cursorPos().y()+1));
else
setCursorPos(QPoint(cursorPos().x(), cursorPos().y()+1));
}
}
else if(ch.toAscii()=='\r') { // carriage return
setCursorPos(QPoint(1,cursorPos().y()));
}
else if(ch.toAscii()=='\b' || ch.toAscii()==127) { //backspace & del (only move cursor, don't erase)
setCursorPos(QPoint(cursorPos().x()-1,cursorPos().y()));
}
else if(ch.toAscii()=='\a') { // BEL
if(escape==']') { // BEL also ends OSC sequence
escape=-1;
oscSequence(oscSeq);
oscSeq.clear();
} else {
iUtil->bellAlert();
}
}
else if(ch.toAscii()=='\t') { //tab
if(cursorPos().y() <= iTabStops.size()) {
for(int i=0; i<iTabStops[cursorPos().y()-1].count(); i++) {
if(iTabStops[cursorPos().y()-1][i] > cursorPos().x()) {
setCursorPos(QPoint( iTabStops[cursorPos().y()-1][i], cursorPos().y() ));
break;
}
}
}
}
else if(ch.toAscii()==14 || ch.toAscii()==15) { //SI and SO, related to character set... ignore
}
else {
if( escape>=0 ) {
if( escape==0 && (ch.toAscii()=='[') ) {
escape='['; //ansi sequence
escSeq += ch;
}
else if( escape==0 && (ch.toAscii()==']') ) {
escape=']'; //osc sequence
oscSeq += ch;
}
else if( escape==0 && multiCharEscapes.contains(ch.toAscii())) {
escape = ch.toAscii();
escSeq += ch;
}
else if( escape==0 && ch.toAscii()=='\\' ) { // ESC\ also ends OSC sequence
escape=-1;
oscSequence(oscSeq);
oscSeq.clear();
}
else if (ch.toAscii()==ch_ESC) {
escape = 0;
}
else if( escape=='[' || multiCharEscapes.contains(escape) ) {
escSeq += ch;
}
else if( escape==']' ) {
oscSeq += ch;
}
else if( multiCharEscapes.contains(escape) ) {
escSeq += ch;
}
else {
escControlChar(QByteArray(1,ch.toAscii()));
escape=-1;
}
if( escape=='[' && ch.toAscii() >= 64 && ch.toAscii() <= 126 && ch.toAscii() != '[' ) {
ansiSequence(escSeq);
escape=-1;
escSeq.clear();
}
if( multiCharEscapes.contains(escape) && escSeq.length()>=2 ) {
escControlChar(escSeq);
escape=-1;
escSeq.clear();
}
} else {
if (ch.isPrint())
insertAtCursor(ch, !iReplaceMode);
else if (ch.toAscii()==ch_ESC)
escape=0;
else
qDebug() << "unprintable char" << int(ch.toAscii());
}
}
}
iEmitCursorChangeSignal = true;
emit displayBufferChanged();
}
void Terminal::insertAtCursor(QChar c, bool overwriteMode, bool advanceCursor)
{
if(cursorPos().x() > iTermSize.width() && advanceCursor) {
if(iTermAttribs.wrapAroundMode) {
if(cursorPos().y()>=iMarginBottom) {
scrollFwd(1);
setCursorPos(QPoint(1, cursorPos().y()));
} else {
setCursorPos(QPoint(1, cursorPos().y()+1));
}
} else {
setCursorPos(QPoint(iTermSize.width(), cursorPos().y()));
}
}
while(currentLine().size() < cursorPos().x() )
currentLine().append(zeroChar);
if(!overwriteMode)
currentLine().insert(cursorPos().x()-1,zeroChar);
currentLine()[cursorPos().x()-1].c = c;
currentLine()[cursorPos().x()-1].fgColor = iTermAttribs.currentFgColor;
currentLine()[cursorPos().x()-1].bgColor = iTermAttribs.currentBgColor;
currentLine()[cursorPos().x()-1].attrib = iTermAttribs.currentAttrib;
if (advanceCursor) {
setCursorPos(QPoint(cursorPos().x()+1,cursorPos().y()));
}
}
void Terminal::deleteAt(QPoint pos)
{
clearAt(pos);
buffer()[pos.y()-1].removeAt(pos.x()-1);
}
void Terminal::clearAt(QPoint pos)
{
if(pos.y() <= 0 || pos.y()-1 > buffer().size() ||
pos.x() <= 0 || pos.x()-1 > buffer()[pos.y()-1].size())
{
qDebug() << "warning: trying to clear char out of bounds";
return;
}
// just in case...
while(buffer().size() < pos.y())
buffer().append(QList<TermChar>());
while(buffer()[pos.y()-1].size() < pos.x() )
buffer()[pos.y()-1].append(zeroChar);
buffer()[pos.y()-1][pos.x()-1] = zeroChar;
}
void Terminal::eraseLineAtCursor(int from, int to)
{
if(from==-1 && to==-1) {
currentLine().clear();
return;
}
if(from < 1)
from=1;
from--;
if(to < 1 || to > currentLine().size())
to=currentLine().size();
to--;
if(from>to)
return;
for(int i=from; i<=to; i++) {
currentLine()[i] = zeroChar;
}
}
void Terminal::clearAll(bool wholeBuffer)
{
clearSelection();
if(wholeBuffer) {
backBuffer().clear();
resetBackBufferScrollPos();
}
buffer().clear();
setCursorPos(QPoint(1,1));
}
void Terminal::ansiSequence(const QString& seq)
{
if(seq.length() <= 1 || seq.at(0)!='[')
return;
QChar cmdChar = seq.at(seq.length()-1);
QString extra;
QList<int> params;
int x=1;
while(x<seq.length()-1 && !QChar(seq.at(x)).isNumber())
x++;
QList<QString> tmp = seq.mid(x,seq.length()-x-1).split(';');
foreach(QString b, tmp) {
bool ok=false;
int t = b.toInt(&ok);
if(ok) {
params.append(t);
}
}
if(x>1)
extra = seq.mid(1,x-1);
bool unhandled = false;
switch(cmdChar.toAscii())
{
case 'A': //cursor up
if(!extra.isEmpty()) {
unhandled=true;
break;
}
if(params.count()<1)
params.append(1);
if(params.at(0)==0)
params[0]=1;
setCursorPos(QPoint( cursorPos().x(), qMax(iMarginTop, cursorPos().y()-params.at(0)) ));
break;
case 'B': //cursor down
if(!extra.isEmpty()) {
unhandled=true;
break;
}
if(params.count()<1)
params.append(1);
if(params.at(0)==0)
params[0]=1;
setCursorPos(QPoint( cursorPos().x(), qMin(iMarginBottom, cursorPos().y()+params.at(0)) ));
break;
case 'C': //cursor fwd
if(!extra.isEmpty()) {
unhandled=true;
break;
}
if(params.count()<1)
params.append(1);
if(params.at(0)==0)
params[0]=1;
setCursorPos(QPoint( qMin(iTermSize.width(),cursorPos().x()+params.at(0)), cursorPos().y() ));
break;
case 'D': //cursor back
if(!extra.isEmpty()) {
unhandled=true;
break;
}
if(params.count()<1)
params.append(1);
if(params.at(0)==0)
params[0]=1;
setCursorPos(QPoint( qMax(1,cursorPos().x()-params.at(0)), cursorPos().y() ));
break;
case 'E': //cursor next line
if(!extra.isEmpty()) {
unhandled=true;
break;
}
if(params.count()<1)
params.append(1);
if(params.at(0)==0)
params[0]=1;
setCursorPos(QPoint( 1, qMin(iMarginBottom, cursorPos().y()+params.at(0)) ));
break;
case 'F': //cursor prev line
if(!extra.isEmpty()) {
unhandled=true;
break;
}
if(params.count()<1)
params.append(1);
if(params.at(0)==0)
params[0]=1;
setCursorPos(QPoint( 1, qMax(iMarginTop, cursorPos().y()-params.at(0)) ));
break;
case 'G': //go to column
if(!extra.isEmpty()) {
unhandled=true;
break;
}
if(params.count()<1)
params.append(1);
if(params.at(0)==0)
params[0]=1;
setCursorPos(QPoint( params.at(0), cursorPos().y() ));
break;
case 'H': //cursor pos
case 'f': //cursor pos
if(!extra.isEmpty()) {
unhandled=true;
break;
}
while(params.count()<2)
params.append(1);
if (iTermAttribs.originMode)
setCursorPos(QPoint( params.at(1), params.at(0)+iMarginTop-1 ));
else
setCursorPos(QPoint( params.at(1), params.at(0) ));
break;
case 'J': //erase data
if(!extra.isEmpty() && extra!="?") {
unhandled=true;
break;
}
if(params.count()>=1 && params.at(0)==1) {
eraseLineAtCursor(1,cursorPos().x());
for(int i=0; i<cursorPos().y()-1; i++) {
buffer()[i].clear();
}
} else if(params.count()>=1 && params.at(0)==2) {
clearAll();
} else {
eraseLineAtCursor(cursorPos().x());
for(int i=cursorPos().y(); i<buffer().size(); i++)
buffer()[i].clear();
}
break;
case 'K': //erase in line
if(!extra.isEmpty() && extra!="?") {
unhandled=true;
break;
}
if(params.count()>=1 && params.at(0)==1) {
eraseLineAtCursor(1,cursorPos().x());
}
else if(params.count()>=1 && params.at(0)==2) {
currentLine().clear();
} else {
eraseLineAtCursor(cursorPos().x());
}
break;
case 'L': // insert lines
if(!extra.isEmpty()) {
unhandled=true;
break;
}
if(cursorPos().y() < iMarginTop || cursorPos().y() > iMarginBottom)
break;
if(params.count()<1)
params.append(1);
if(params.at(0)==0)
params[0]=1;
if(params.at(0) > iMarginBottom-cursorPos().y())
scrollBack(iMarginBottom-cursorPos().y(), cursorPos().y());
else
scrollBack(params.at(0), cursorPos().y());
setCursorPos(QPoint(1,cursorPos().y()));
break;
case 'M': // delete lines
if(!extra.isEmpty()) {
unhandled=true;
break;
}
if(cursorPos().y() < iMarginTop || cursorPos().y() > iMarginBottom)
break;
if(params.count()<1)
params.append(1);
if(params.at(0)==0)
params[0]=1;
if(params.at(0) > iMarginBottom-cursorPos().y())
scrollFwd(iMarginBottom-cursorPos().y(), cursorPos().y());
else
scrollFwd(params.at(0), cursorPos().y());
setCursorPos(QPoint(1,cursorPos().y()));
break;
case 'P': // delete characters
if(!extra.isEmpty()) {
unhandled=true;
break;
}
if(params.count()<1)
params.append(1);
if(params.at(0)==0)
params[0]=1;
for(int i=0; i<params.at(0); i++)
deleteAt(cursorPos());
break;
case '@': // insert blank characters
if(!extra.isEmpty()) {
unhandled=true;
break;
}
if(params.count()<1)
params.append(1);
if(params.at(0)==0)
params[0] = 1;
for(int i=1; i<=params.at(0); i++)
insertAtCursor(zeroChar.c, false, false);
break;
case 'S': // scroll up n lines
if(params.count()<1)
params.append(1);
if(params.at(0)==0)
params[0]=1;
scrollFwd(params.at(0));
break;
case 'T': // scroll down n lines
if(params.count()<1)
params.append(1);
if(params.at(0)==0)
params[0]=1;
scrollBack(params.at(0));
break;
case 'c': // vt100 identification
if(params.count()==0)
params.append(0);
if(params.count()==1 && params.at(0)==0) {
QString toWrite = QString("%1[?1;2c").arg(ch_ESC).toAscii();
if(iPtyIFace)
iPtyIFace->writeTerm(toWrite);
} else unhandled=true;
break;
case 'd': //go to row
if(!extra.isEmpty()) {
unhandled=true;
break;
}
if(params.count()<1)
params.append(1);
if(params.at(0)==0)
params[0]=1;
setCursorPos(QPoint( cursorPos().x(), params.at(0) ));
break;
case 'g': //tab stop manipulation
if(params.count()==0)
params.append(0);
if(params.at(0)==0 && extra=="") { //clear tab at current position
if(cursorPos().y() <= iTabStops.size()) {
int idx = iTabStops[cursorPos().y()-1].indexOf(cursorPos().x());
if(idx != -1)
iTabStops[cursorPos().y()-1].removeAt(idx);
}
}
else if(params.at(0)==3 && extra=="") { //clear all tabs
iTabStops.clear();
}
break;
case 'n':
if(params.count()>=1 && params.at(0)==6 && extra=="") { // write cursor pos
QString toWrite = QString("%1[%2;%3R").arg(ch_ESC).arg(cursorPos().y()).arg(cursorPos().x()).toAscii();
if(iPtyIFace)
iPtyIFace->writeTerm(toWrite);
} else unhandled=true;
break;
case 'p':
if(extra=="!") { // reset terminal
resetTerminal();
} else unhandled=true;
break;
case 's': //save cursor
if(!extra.isEmpty()) {
unhandled=true;
break;
}
iTermAttribs_saved = iTermAttribs;
break;
case 'u': //restore cursor
if(!extra.isEmpty()) {
unhandled=true;
break;
}
iTermAttribs = iTermAttribs_saved;
break;
case 'm': //graphics mode
if(!extra.isEmpty()) {
unhandled=true;
break;
}
if(params.count() > 0) {
if(params.contains(0)) {
iTermAttribs.currentFgColor = defaultFgColor;
iTermAttribs.currentBgColor = defaultBgColor;
iTermAttribs.currentAttrib = attribNone;
}
if(params.contains(1))
iTermAttribs.currentAttrib |= attribBold;
if(params.contains(4))
iTermAttribs.currentAttrib |= attribUnderline;
if(params.contains(7))
iTermAttribs.currentAttrib |= attribNegative;
if(params.contains(22))
iTermAttribs.currentAttrib &= ~attribBold;
if(params.contains(24))
iTermAttribs.currentAttrib &= ~attribUnderline;
if(params.contains(27))
iTermAttribs.currentAttrib &= ~attribNegative;
foreach(int p, params) {
if(p >= 30 && p<= 37) {
iTermAttribs.currentFgColor = p-30;
}
if(p >= 40 && p<= 47) {
iTermAttribs.currentBgColor = p-40;
}
}
if(params.contains(39))
iTermAttribs.currentFgColor = defaultFgColor;
if(params.contains(49))
iTermAttribs.currentBgColor = defaultBgColor;
} else {
iTermAttribs.currentFgColor = defaultFgColor;
iTermAttribs.currentBgColor = defaultBgColor;
iTermAttribs.currentAttrib = attribNone;
}
break;
case 'h':
if(params.count()>=1 && params.contains(1) && extra=="?") { // application cursor keys
iAppCursorKeys = true;
}
else if(params.count()>=1 && params.contains(3) && extra=="?") { //column mode
// not supported, just clear screen, move cursor home & reset scrolling region
clearAll();
resetTabs();
iMarginTop = 1;
iMarginBottom = iTermSize.height();
}
else if(params.count()>=1 && params.contains(6) && extra=="?") { //origin mode enable
iTermAttribs.originMode = true;
}
else if(params.count()>=1 && params.contains(7) && extra=="?") { //wraparound mode enable
iTermAttribs.wrapAroundMode = true;
}
else if(params.count()>=1 && params.contains(12) && extra=="?") { // start blinking cursor
// just ignore, we don't blink
}
else if(params.count()>=1 && params.contains(25) && extra=="?") { // show cursor
iShowCursor = true;
}
else if(params.count()>=1 && params.contains(1049) && extra=="?") { //use alt screen buffer & save cursor
iTermAttribs_saved_alt = iTermAttribs;
iUseAltScreenBuffer = true;
iMarginTop = 1;
iMarginBottom = iTermSize.height();
resetBackBufferScrollPos();
clearAll();
resetTabs();
emit displayBufferChanged();
}
else if(params.count()>=1 && params.contains(4) && extra=="") {
iReplaceMode = true;
}
else if(params.count()>=1 && params.contains(20) && extra=="") {
iNewLineMode = true;
}
else unhandled=true;
break;
case 'l':
if(params.count()>=1 && params.contains(1) && extra=="?") { // normal cursor keys
iAppCursorKeys = false;
}
else if(params.count()>=1 && params.contains(3) && extra=="?") { //column mode
// not supported, just clear screen, move cursor home & reset scrolling region
clearAll();
resetTabs();
iMarginTop = 1;
iMarginBottom = iTermSize.height();
}
else if(params.count()>=1 && params.contains(6) && extra=="?") { //origin mode disable
iTermAttribs.originMode = false;
}
else if(params.count()>=1 && params.contains(7) && extra=="?") { //wraparound mode disable
iTermAttribs.wrapAroundMode = false;
}
else if(params.count()>=1 && params.contains(12) && extra=="?") { // stop blinking cursor
// no need to do anything, we don't blink
}
else if(params.count()>=1 && params.contains(25) && extra=="?") { // hide cursor
iShowCursor = false;
}
else if(params.count()>=1 && params.contains(1049) && extra=="?") { //return from alt screen buffer & restore cursor
iUseAltScreenBuffer = false;
iTermAttribs = iTermAttribs_saved_alt;
iMarginBottom = iTermSize.height();
iMarginTop = 1;
resetBackBufferScrollPos();
resetTabs();
emit displayBufferChanged();
}
else if(params.count()>=1 && params.contains(4) && extra=="") {
iReplaceMode = false;
}
else if(params.count()>=1 && params.contains(20) && extra=="") {
iNewLineMode = false;
}
else unhandled=true;
break;
case 'r': // scrolling region
if(!extra.isEmpty()) {
unhandled=true;
break;
}
if(params.count() < 2) {
while(params.count() < 2)
params.append(1);
params[0] = 1;
params[1] = iTermSize.height();
}
if(params.at(0) < 1)
params[0] = 1;
if(params.at(1) > iTermSize.height())
params[1] = iTermSize.height();
iMarginTop = params.at(0);
iMarginBottom = params.at(1);
if(iMarginTop >= iMarginBottom) {
//invalid scroll region
if(iMarginTop == iTermSize.height()) {
iMarginTop = iMarginBottom - 1;
} else {
iMarginBottom = iMarginTop + 1;
}
}
setCursorPos(QPoint( 1, iMarginTop ));
break;
default:
unhandled=true;
break;
}
if (unhandled)
qDebug() << "unhandled ansi sequence " << cmdChar << params << extra;
}
void Terminal::oscSequence(const QString& seq)
{
if(seq.length() <= 1 || seq.at(0)!=']')
return;
// set window title
if( seq.length() >= 3 && seq.at(0)==']' &&
(seq.at(1)=='0' || seq.at(1)=='2') &&
seq.at(2)==';' )
{
if(iWindow) {
iUtil->setWindowTitle(seq.mid(3));
}
return;
}
qDebug() << "unhandled OSC" << seq;
}
void Terminal::escControlChar(const QString& seq)
{
QChar ch;
if(seq.length()==1) {
ch = seq.at(0);
} else if (seq.length()>1 ){ // control sequences longer than 1 characters
if( seq.at(0) == '(' || seq.at(0)==')' ) // character set, ignore this for now...
return;
if( seq.at(0) == '#' && seq.at(1)=='8' ) { // test mode, fill screen with 'E'
clearAll(true);
for(int i=0; i<termSize().height(); i++) {
QList<TermChar> line;
for(int j=0; j<termSize().width(); j++) {
TermChar c = zeroChar;
c.c = 'E';
line.append(c);
}
buffer().append(line);
}
return;
}
}
if(ch.toAscii()=='7') { //save cursor
iTermAttribs_saved = iTermAttribs;
}
else if(ch.toAscii()=='8') { //restore cursor
iTermAttribs = iTermAttribs_saved;
}
else if(ch.toAscii()=='>' || ch.toAscii()=='=') { //app keypad/normal keypad - ignore these for now...
}
else if(ch.toAscii()=='H') { // set a tab stop at cursor position
while(iTabStops.size() < cursorPos().y())
iTabStops.append(QList<int>());
iTabStops[cursorPos().y()-1].append(cursorPos().x());
qSort(iTabStops[cursorPos().y()-1]);
}
else if(ch.toAscii()=='D') { // cursor down/scroll down one line
scrollFwd(1, cursorPos().y());
}
else if(ch.toAscii()=='M') { // cursor up/scroll up one line
scrollBack(1, cursorPos().y());
}
else if(ch.toAscii()=='E') { // new line
if(cursorPos().y()==iMarginBottom) {
scrollFwd(1);
setCursorPos(QPoint(1,cursorPos().y()));
} else {
setCursorPos(QPoint(1,cursorPos().y()+1));
}
}
else if(ch.toAscii()=='c') { // full reset
resetTerminal();
}
else if(ch.toAscii()=='g') { // visual bell
iUtil->bellAlert();
}
else {
qDebug() << "unhandled escape code ESC" << seq;
}
}
QList<TermChar>& Terminal::currentLine()
{
while(buffer().size() <= cursorPos().y()-1)
buffer().append(QList<TermChar>());
if( cursorPos().y() >= 1 &&
cursorPos().y() <= buffer().size() )
{
return buffer()[cursorPos().y()-1];