diff options
Diffstat (limited to 'src-qt5/experimental/lumina-terminal/TerminalWidget.cpp')
| -rw-r--r-- | src-qt5/experimental/lumina-terminal/TerminalWidget.cpp | 570 |
1 files changed, 570 insertions, 0 deletions
diff --git a/src-qt5/experimental/lumina-terminal/TerminalWidget.cpp b/src-qt5/experimental/lumina-terminal/TerminalWidget.cpp new file mode 100644 index 00000000..7601ae9f --- /dev/null +++ b/src-qt5/experimental/lumina-terminal/TerminalWidget.cpp @@ -0,0 +1,570 @@ +//=========================================== +// Lumina-DE source code +// Copyright (c) 2015, Ken Moore +// Available under the 3-clause BSD license +// See the LICENSE file for full details +//=========================================== +#include "TerminalWidget.h" + +#include <QProcessEnvironment> +#include <QDebug> +#include <QApplication> +#include <QScrollBar> +#include <QTextBlock> + +#include <LuminaXDG.h> + +#define DEBUG 0 + +//Special control code ending symbols (aside from letters) + +TerminalWidget::TerminalWidget(QWidget *parent, QString dir) : QTextEdit(parent){ + //Setup the text widget + closing = false; + QPalette P = this->palette(); + P.setColor(QPalette::Base, Qt::black); + P.setColor(QPalette::Text, Qt::white); + this->setPalette(P); + this->setLineWrapMode(QTextEdit::WidgetWidth); + this->setAcceptRichText(false); + this->setOverwriteMode(true); + this->setFocusPolicy(Qt::StrongFocus); + this->setTabStopWidth( 8 * this->fontMetrics().width(" ") ); //8 character spaces per tab (UNIX standard) + this->setTabChangesFocus(false); + //this->setWordWrapMode(QTextOption::NoWrap); + this->setContextMenuPolicy(Qt::CustomContextMenu); + resizeTimer = new QTimer(this); + resizeTimer->setInterval(20); + resizeTimer->setSingleShot(true); + connect(resizeTimer, SIGNAL(timeout()), this, SLOT(updateTermSize()) ); + DEFFMT = this->textCursor().charFormat(); //save the default structure for later + DEFFMT.setForeground(Qt::white); + CFMT = DEFFMT; //current format + selCursor = this->textCursor(); //used for keeping track of selections + lastCursor = this->textCursor(); + startrow = endrow = -1; + altkeypad = false; + QFontDatabase FDB; + QStringList fonts = FDB.families(QFontDatabase::Latin); + for(int i=0; i<fonts.length(); i++){ + if(FDB.isFixedPitch(fonts[i]) && FDB.isSmoothlyScalable(fonts[i]) ){ this->setFont(QFont(fonts[i])); qDebug() << "Using Font:" << fonts[i]; break; } + //if(FDB.isSmoothlyScalable(fonts[i]) ){ this->setFont(QFont(fonts[i])); qDebug() << "Using Font:" << fonts[i]; break; } + } + //Create/open the TTY port + PROC = new TTYProcess(this); + //qDebug() << "Open new TTY"; + //int fd; + bool ok = PROC->startTTY( QProcessEnvironment::systemEnvironment().value("SHELL","/bin/sh"), QStringList(), dir); + //qDebug() << " - opened:" << ok; + this->setEnabled(false); + contextMenu = new QMenu(this); + copyA = contextMenu->addAction(LXDG::findIcon("edit-copy"), tr("Copy Selection"), this, SLOT(copySelection()) ); + pasteA = contextMenu->addAction(LXDG::findIcon("edit-paste"), tr("Paste"), this, SLOT(pasteSelection()) ); + //Connect the signals/slots + connect(PROC, SIGNAL(readyRead()), this, SLOT(UpdateText()) ); + connect(PROC, SIGNAL(processClosed()), this, SLOT(ShellClosed()) ); + +} + +TerminalWidget::~TerminalWidget(){ + aboutToClose(); +} + +void TerminalWidget::setTerminalFont(QFont font){ + + this->setFont(font); +} + +void TerminalWidget::aboutToClose(){ + closing = true; + if(PROC->isOpen()){ PROC->closeTTY(); } //TTY PORT + +} + +// ================== +// PRIVATE +// ================== +void TerminalWidget::InsertText(QString txt){ + if(txt.isEmpty()){ return; } + //qDebug() << "Insert Text:" << txt << "Cursor Pos:" << this->textCursor().position() << "Column:" << this->textCursor().columnNumber(); + QTextCursor cur = this->textCursor(); + cur.setCharFormat(CFMT); + this->setTextCursor(cur); //ensure the current cursor has the proper format + this->insertPlainText(txt); + /*cur.setPosition( this->textCursor().position(), QTextCursor::KeepAnchor); + //cur.setCharFormat(CFMT); + //Now make sure the new characters are the right color + QList<QTextEdit::ExtraSelection> sels = this->extraSelections(); + QTextEdit::ExtraSelection sel; + sel.format = CFMT; + sel.cursor = cur; + sels << sel; + this->setExtraSelections(sels);*/ + if(DEBUG){ + qDebug() << "Insert Text:"<< txt << "Font Color:" << CFMT.foreground() << "Background Color:" << CFMT.background() << "Font Weight:" << CFMT.fontWeight(); + } +} + +void TerminalWidget::applyData(QByteArray data){ + this->setEnabled(true); + if(DEBUG){ qDebug() << "Got Data: " << data; } + //Make sure the current cursor is the right cursor + if(this->textCursor()==selCursor){ this->setTextCursor(lastCursor); } + //Iterate through the data and apply it when possible + QByteArray chars; + //qDebug() << "Data:" << data; + for(int i=0; i<data.size(); i++){ + if( data.at(i)=='\b' ){ + //Backspace + if(!chars.isEmpty()){ chars.chop(1); } + else{ + QTextCursor cur = this->textCursor(); + cur.movePosition(QTextCursor::Left, QTextCursor::KeepAnchor, 1); + cur.removeSelectedText(); + this->setTextCursor(cur); + } + + //}else if( data.at(i)=='\t' ){ + //chars.append(" "); + }else if( data.at(i)=='\x1B' ){ + //Flush current text buffer to widget + if(!chars.isEmpty()){ InsertText(chars); chars.clear(); } + //ANSI Control Code start + //Look for the end of the code + int end = -1; + for(int j=1; j<(data.size()-i) && end<0; j++){ + if(QChar(data.at(i+j)).isLetter() || (QChar(data.at(i+j)).isSymbol() && data.at(i+j)!=';') ){ end = j; } + else if(data.at(i+j)=='\x1B'){ end = j-1; } //start of the next control code + } + if(end<0){ return; } //skip everything else - no end to code found + applyANSI(data.mid(i+1, end)); + //qDebug() << "Code:" << data.mid(i+1, end) << "Next Char:" << data[i+end+2]; + i+=end; //move the final loop along - already handled these bytes + + }else if( data.at(i) == '\r' ){ + //Move cursor to end of line + //qDebug() << "Got a return char"; + QTextCursor cur = this->textCursor(); + cur.movePosition(QTextCursor::EndOfLine, QTextCursor::MoveAnchor, 1); + cur.removeSelectedText(); + this->setTextCursor(cur); + }else{ + chars.append(data.at(i)); //Add the character to the buffer + } + } //end loop over data + if(!chars.isEmpty()){ InsertText(chars); } +} + +void TerminalWidget::applyANSI(QByteArray code){ + //Note: the first byte is often the "[" character + //qDebug() << "Handle ANSI:" << code; + if(code.length()==1){ + //KEYPAD MODES + if(code.at(0)=='='){ altkeypad = true; } + else if(code.at(0)=='>'){ altkeypad = false; } + else{ + qDebug() << "Unhandled ANSI Code:" << code; + } + + }else if(code.startsWith("[") && code.contains("@")){ + code = code.remove(0, code.indexOf("@")+1); + InsertText(code); //insert character (cursor position already accounted for with other systems) + }else if(code.startsWith("[")){ + // VT100 ESCAPE CODES + //CURSOR MOVEMENT + if( code.endsWith("A") ){ //Move Up + int num = 1; + if(code.size()>2){ num = code.mid(1, code.size()-2).toInt(); } //everything in the middle + QTextCursor cur = this->textCursor(); + cur.movePosition(QTextCursor::Up, QTextCursor::MoveAnchor, num); + this->setTextCursor(cur); + }else if(code.endsWith("B")){ //Move Down + int num = 1; + if(code.size()>2){ num = code.mid(1, code.size()-2).toInt(); } //everything in the middle + QTextCursor cur = this->textCursor(); + cur.movePosition(QTextCursor::Down, QTextCursor::MoveAnchor, num); + this->setTextCursor(cur); + }else if(code.endsWith("C")){ //Move Forward + int num = 1; + if(code.size()>2){ num = code.mid(1, code.size()-2).toInt(); } //everything in the middle + QTextCursor cur = this->textCursor(); + cur.movePosition(QTextCursor::Right, QTextCursor::MoveAnchor, num); + this->setTextCursor(cur); + }else if(code.endsWith("D")){ //Move Back + int num = 1; + if(code.size()>2){ num = code.mid(1, code.size()-2).toInt(); } //everything in the middle + QTextCursor cur = this->textCursor(); + cur.movePosition(QTextCursor::Left, QTextCursor::MoveAnchor, num); + this->setTextCursor(cur); + }else if(code.endsWith("E")){ //Move Next/down Lines (go toward end) + int num = 1; + if(code.size()>2){ num = code.mid(1, code.size()-2).toInt(); } //everything in the middle + QTextCursor cur = this->textCursor(); + cur.movePosition(QTextCursor::NextRow, QTextCursor::MoveAnchor, num); + this->setTextCursor(cur); + }else if(code.endsWith("F")){ //Move Previous/up Lines (go to beginning) + int num = 1; + if(code.size()>2){ num = code.mid(1, code.size()-2).toInt(); } //everything in the middle + QTextCursor cur = this->textCursor(); + cur.movePosition(QTextCursor::PreviousRow, QTextCursor::MoveAnchor, num); + this->setTextCursor(cur); + }else if(code.endsWith("G")){ //Move to specific column + int num = 1; + if(code.size()>2){ num = code.mid(1, code.size()-2).toInt(); } //everything in the middle + QTextCursor cur = this->textCursor(); + cur.setPosition(num); + this->setTextCursor(cur); + }else if(code.endsWith("H") || code.endsWith("f") ){ //Move to specific position (row/column) + int mid = code.indexOf(";"); + if(mid>1){ + int numR, numC; numR = numC = 1; + if(mid >=2){ numR = code.mid(1,mid-1).toInt(); } + if(mid < code.size()-1){ numC = code.mid(mid+1,code.size()-mid-2).toInt(); } + + if(startrow>=0 && endrow>=0){ + if(numR == startrow){ numR = 0;} + else if(numR==endrow){ numR = this->document()->lineCount()-1; } + } + qDebug() << "Set Text Position (absolute):" << "Code:" << code << "Row:" << numR << "Col:" << numC; + //qDebug() << " - Current Pos:" << this->textCursor().position() << "Line Count:" << this->document()->lineCount(); + //if(!this->textCursor().movePosition(QTextCursor::Start, QTextCursor::MoveAnchor,1) ){ qDebug() << "Could not go to start"; } + QTextCursor cur(this->textCursor()); + cur.setPosition(QTextCursor::Start, QTextCursor::MoveAnchor); //go to start of document + //qDebug() << " - Pos After Start Move:" << cur.position(); + if( !cur.movePosition(QTextCursor::Down, QTextCursor::MoveAnchor, numR) ){ qDebug() << "Could not go to row:" << numR; } + //qDebug() << " - Pos After Down Move:" << cur.position(); + if( !cur.movePosition(QTextCursor::Right, QTextCursor::MoveAnchor, numC) ){ qDebug() << "Could not go to col:" << numC; } + /*this->textCursor().setPosition( this->document()->findBlockByLineNumber(numR).position() ); + qDebug() << " - Pos After Row Move:" << this->textCursor().position(); + if( !this->textCursor().movePosition(QTextCursor::Right, QTextCursor::MoveAnchor, numC) ){ qDebug() << "Could not go to col:" << numC; }*/ + //qDebug() << " - Ending Pos:" << cur.position(); + this->setTextCursor(cur); + }else{ + //Go to home position + this->moveCursor(QTextCursor::Start); + } + + // CURSOR MANAGEMENT + }else if(code.endsWith("r")){ //Tag top/bottom lines as perticular numbers + int mid = code.indexOf(";"); + qDebug() << "New Row Codes:" << code << "midpoint:" << mid; + if(mid>1){ + if(mid >=2){ startrow = code.mid(1,mid-1).toInt(); } + if(mid < code.size()-1){ endrow = code.mid(mid+1,code.size()-mid-2).toInt(); } + } + qDebug() << "New Row Codes:" << startrow << endrow; + // DISPLAY CLEAR CODES + }else if(code.endsWith("J")){ //ED - Erase Display + int num = 0; + if(code.size()>2){ num = code.mid(1, code.size()-2).toInt(); } //everything in the middle + //qDebug() << "Erase Display:" << num; + if(num==1){ + //Clear from cursor to beginning of screen + QTextCursor cur = this->textCursor(); + cur.movePosition(QTextCursor::Start, QTextCursor::KeepAnchor, 1); + cur.removeSelectedText(); + this->setTextCursor(cur); + }else if(num==2){ + //Clear the whole screen + qDebug() << "Clear Screen:" << this->document()->lineCount(); + this->clear(); + }else{ + //Clear from cursor to end of screen + QTextCursor cur = this->textCursor(); + cur.movePosition(QTextCursor::End, QTextCursor::KeepAnchor, 1); + cur.removeSelectedText(); + this->setTextCursor(cur); + } + }else if(code.endsWith("K")){ //EL - Erase in Line + int num = 0; + if(code.size()>2){ num = code.mid(1, code.size()-2).toInt(); } //everything in the middle + //qDebug() << "Erase Number" << num; + //Now determine what should be cleared based on code + if(num==1){ + //Clear from current cursor to beginning of line + QTextCursor cur = this->textCursor(); + cur.movePosition(QTextCursor::StartOfLine, QTextCursor::KeepAnchor, 1); + cur.removeSelectedText(); + this->setTextCursor(cur); + }else if(num==2){ + //Clear the entire line + QTextCursor cur = this->textCursor(); + cur.movePosition(QTextCursor::StartOfLine, QTextCursor::MoveAnchor, 1); + cur.movePosition(QTextCursor::EndOfLine, QTextCursor::KeepAnchor, 1); + cur.removeSelectedText(); + this->setTextCursor(cur); + }else{ + //Clear from current cursor to end of line + QTextCursor cur = this->textCursor(); + cur.movePosition(QTextCursor::EndOfLine, QTextCursor::KeepAnchor, 1); + cur.removeSelectedText(); + this->setTextCursor(cur); + } + }else if(code.endsWith("g")){ + //Tab Clear codes (0 or 3 only) + int num = 0; + if(code.size()>2){ num = code.mid(1, code.size()-2).toInt(); } //everything in the middle + if(num==0){ //clear current column (delete key analogue) + QTextCursor cur = this->textCursor(); + cur.movePosition(QTextCursor::Right, QTextCursor::KeepAnchor, 1); + cur.removeSelectedText(); + this->setTextCursor(cur); + }else if(num==3){ //clear all + this->clear(); + } + //SCROLL MOVEMENT CODES + //}else if(code.endsWith("S")){ // SU - Scroll Up + //qDebug() << "Scroll Up:" << code; + //}else if(code.endsWith("T")){ // SD - Scroll Down + //qDebug() << "Scroll Down:" << code; + + // GRAPHICS RENDERING + }else if(code.endsWith("m")){ + //Format: "[<number>;<number>m" (no limit to sections separated by ";") + //qDebug() << "Got Graphics Code:" << code; + code.chop(1); //chop the "m" off the end + int start = 1; + int end = code.indexOf(";"); + while(end>start){ + //qDebug() << "Color Code:" << code << start << end << code.mid(start, end-start); + applyANSIColor(code.mid(start, end-start).toInt()); + //Now update the iterators and try again + start = end; + end = code.indexOf(";",start); //go to the next one + //qDebug() << "Next end:" << end; + } + //Need the last section as well + end = code.size(); + if(start>1){ start ++; } + //qDebug() << "Color Code:" << code << start << end << code.mid(start, end-start); + if(end>start){ applyANSIColor(code.mid(start, end-start).toInt());} + else{ applyANSIColor(0); } + + + // GRAPHICS MODES + //}else if(code.endsWith("h")){ + + //}else if(code.endsWith("l")){ + + }else{ + qDebug() << "Unhandled Control Code:" << code; + } + + } //End VT100 control codes + else{ + qDebug() << "Unhandled Control Code:" << code; + } +} + +void TerminalWidget::applyANSIColor(int code){ + //qDebug() << "Apply Color code:" << code; + if(code <=0){ CFMT = DEFFMT; } //Reset back to default + else if(code==1){ CFMT.setFontWeight(75); } //BOLD font + else if(code==2){ CFMT.setFontWeight(25); } //Faint font (smaller than normal by a bit) + else if(code==3){ CFMT.setFontWeight(75); } //Italic font + else if(code==4){ CFMT.setFontUnderline(true); } //Underline + //5-6: Blink text (unsupported) + //7: Reverse foreground/background (unsupported) + //8: Conceal (unsupported) + else if(code==9){ CFMT.setFontStrikeOut(true); } //Crossed out + //10-19: Change font family (unsupported) + //20: Fraktur Font (unsupported) + //21: Bold:off or Underline:Double (unsupported) + else if(code==22){ CFMT.setFontWeight(50); } //Normal weight + //23: Reset font (unsupported) + else if(code==24){ CFMT.setFontUnderline(false); } //disable underline + //25: Disable blinking (unsupported) + //26: Reserved + //27: Reset reversal (7) (unsupported) + //28: Reveal (cancel 8) (unsupported) + else if(code==29){ CFMT.setFontStrikeOut(false); } //Not Crossed out + else if(code>=30 && code<=39){ + //Set the font color + QColor color; + if(code==30){color=QColor(Qt::black); } + else if(code==31){ color=QColor(Qt::red); } + else if(code==32){ color=QColor(Qt::green); } + else if(code==33){ color=QColor(Qt::yellow); } + else if(code==34){ color=QColor(Qt::blue); } + else if(code==35){ color=QColor(Qt::magenta); } + else if(code==36){ color=QColor(Qt::cyan); } + else if(code==37){ color=QColor(Qt::white); } + //48: Special extended color setting (unsupported) + else if(code==39){ color= DEFFMT.foreground().color(); } //reset to default color + QBrush brush = CFMT.foreground(); + color.setAlpha(255); //fully opaque + brush.setColor(color); + CFMT.setForeground( brush ); + //this->setTextColor(color); //just in case the format is not used + } + else if(code>=40 && code<=49){ + //Set the font color + QColor color; + if(code==40){color=QColor(Qt::black); } + else if(code==41){ color=QColor(Qt::red); } + else if(code==42){ color=QColor(Qt::green); } + else if(code==43){ color=QColor(Qt::yellow); } + else if(code==44){ color=QColor(Qt::blue); } + else if(code==45){ color=QColor(Qt::magenta); } + else if(code==46){ color=QColor(Qt::cyan); } + else if(code==47){ color=QColor(Qt::white); } + //48: Special extended color setting (unsupported) + else if(code==49){ color= DEFFMT.background().color(); } //reset to default color + QBrush brush = CFMT.background(); + color.setAlpha(255); //fully opaque + brush.setColor(color); + CFMT.setBackground( brush ); + } + //50: Reserved + //51: Framed + //52: Encircled + else if(code==53){ CFMT.setFontOverline(true); } //enable overline + //54: Not framed/circled (51/52) + else if(code==55){ CFMT.setFontOverline(false); } //disable overline + //56-59: Reserved + //60+: Not generally supported (special code for particular terminals such as aixterm) + else{ qDebug() << "Unknown Color Code:" << code; } +} + +//Outgoing Data parsing +void TerminalWidget::sendKeyPress(int key){ + QByteArray ba; + //if(this->textCursor()==selCursor){ this->setTextCursor(lastCursor); } + //int fromEnd = this->document()->characterCount() - this->textCursor().position(); + //Check for special keys + switch(key){ + case Qt::Key_Delete: + ba.append("\e[3~"); + break; + case Qt::Key_Backspace: + ba.append("\x08"); + break; + case Qt::Key_Left: + if(altkeypad){ ba.append("^[D"); } + else{ ba.append("\x1b[D"); } + break; + case Qt::Key_Right: + if(altkeypad){ ba.append("^[C"); } + else{ ba.append("\x1b[C"); } + break; + case Qt::Key_Up: + if(altkeypad){ ba.append("^[A"); } + else{ ba.append("\x1b[A"); } + break; + case Qt::Key_Down: + if(altkeypad){ ba.append("^[B"); } + else{ ba.append("\x1b[B"); } + break; + case Qt::Key_Home: + ba.append("\x1b[H"); + break; + case Qt::Key_End: + ba.append("\x1b[F"); + break; + } + //qDebug() << "Forward Input:" << ba; + if(!ba.isEmpty()){ PROC->writeTTY(ba); } +} + +// ================== +// PRIVATE SLOTS +// ================== +void TerminalWidget::UpdateText(){ + //read the data from the process + //qDebug() << "UpdateText"; + if(!PROC->isOpen()){ return; } + applyData(PROC->readTTY()); + //adjust the scrollbar as needed + this->ensureCursorVisible(); +} + +void TerminalWidget::ShellClosed(){ + if(!closing){ + emit ProcessClosed(this->whatsThis()); + } +} + +void TerminalWidget::copySelection(){ + QApplication::clipboard()->setText( selCursor.selectedText() ); +} + +void TerminalWidget::pasteSelection(){ + QString text = QApplication::clipboard()->text(); + if(!text.isEmpty()){ + QByteArray ba; ba.append(text); //avoid any byte conversions + PROC->writeTTY(ba); + } +} + +void TerminalWidget::updateTermSize(){ + if(!PROC->isOpen()){ return; } + QSize pix = this->size(); //pixels + QSize chars; + chars.setWidth( pix.width()/this->fontMetrics().width("W") ); + chars.setHeight( pix.height()/this->fontMetrics().lineSpacing() ); + + PROC->setTerminalSize(chars,pix); +} + +// ================== +// PROTECTED +// ================== +void TerminalWidget::keyPressEvent(QKeyEvent *ev){ + + if(ev->text().isEmpty() || ev->text()=="\b" ){ + sendKeyPress(ev->key()); + }else{ + QByteArray ba; ba.append(ev->text()); //avoid any byte conversions + //qDebug() << "Forward Input:" << ba; + PROC->writeTTY(ba); + } + + ev->ignore(); +} + +void TerminalWidget::mousePressEvent(QMouseEvent *ev){ + this->setFocus(); + this->activateWindow(); + if(ev->button()==Qt::RightButton){ + QTextEdit::mousePressEvent(ev); + }else if(ev->button()==Qt::MiddleButton){ + pasteSelection(); + }else if(ev->button()==Qt::LeftButton){ + if(this->textCursor()!=selCursor){ lastCursor = this->textCursor(); } + selCursor = this->cursorForPosition(ev->pos()); + } + Q_UNUSED(ev); +} + +void TerminalWidget::mouseMoveEvent(QMouseEvent *ev){ + //qDebug() << "MouseMove Event" << ev->button() << ev->buttons() << Qt::LeftButton; + if(ev->buttons().testFlag(Qt::LeftButton) ){ + selCursor.setPosition(this->cursorForPosition(ev->pos()).position(), QTextCursor::KeepAnchor); + if(selCursor.hasSelection()){ this->setTextCursor(selCursor); } + //qDebug() << "Mouse Movement:" << selCursor.hasSelection(); + }else{ + QTextEdit::mouseMoveEvent(ev); + } +} + +void TerminalWidget::mouseReleaseEvent(QMouseEvent *ev){ + if(ev->button()==Qt::LeftButton){ + selCursor.setPosition(this->cursorForPosition(ev->pos()).position(), QTextCursor::KeepAnchor); + if(selCursor.hasSelection()){ this->setTextCursor(selCursor); } + else{ this->setTextCursor(lastCursor); } + }else if(ev->button()==Qt::RightButton){ + copyA->setEnabled( selCursor.hasSelection() ); + pasteA->setEnabled( !QApplication::clipboard()->text().isEmpty() ); + contextMenu->popup( this->mapToGlobal(ev->pos()) ); + } + Q_UNUSED(ev); +} + +void TerminalWidget::mouseDoubleClickEvent(QMouseEvent *ev){ + Q_UNUSED(ev); +} + +void TerminalWidget::resizeEvent(QResizeEvent *ev){ + resizeTimer->start(); + QTextEdit::resizeEvent(ev); +} |