diff --git a/src/TerminalDisplay.cpp b/src/TerminalDisplay.cpp index 37ccb71c..13f1ef0d 100644 --- a/src/TerminalDisplay.cpp +++ b/src/TerminalDisplay.cpp @@ -1,4201 +1,4195 @@ /* This file is part of Konsole, a terminal emulator for KDE. Copyright 2006-2008 by Robert Knight Copyright 1997,1998 by Lars Doelle 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 "TerminalDisplay.h" // Config #include // Qt #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include // KDE #include #include #include #include #include #include #include #include #include #include // Konsole #include "Filter.h" #include "konsoledebug.h" #include "TerminalCharacterDecoder.h" #include "Screen.h" #include "LineFont.h" #include "SessionController.h" #include "ExtendedCharTable.h" #include "TerminalDisplayAccessible.h" #include "SessionManager.h" #include "Session.h" #include "WindowSystemInfo.h" #include "IncrementalSearchBar.h" using namespace Konsole; #define REPCHAR "ABCDEFGHIJKLMNOPQRSTUVWXYZ" \ "abcdefgjijklmnopqrstuvwxyz" \ "0123456789./+@" // we use this to force QPainter to display text in LTR mode // more information can be found in: http://unicode.org/reports/tr9/ const QChar LTR_OVERRIDE_CHAR(0x202D); inline int TerminalDisplay::loc(int x, int y) const { Q_ASSERT(y >= 0 && y < _lines); Q_ASSERT(x >= 0 && x < _columns); x = qBound(0, x, _columns - 1); y = qBound(0, y, _lines - 1); return y * _columns + x; } /* ------------------------------------------------------------------------- */ /* */ /* Colors */ /* */ /* ------------------------------------------------------------------------- */ /* Note that we use ANSI color order (bgr), while IBMPC color order is (rgb) Code 0 1 2 3 4 5 6 7 ----------- ------- ------- ------- ------- ------- ------- ------- ------- ANSI (bgr) Black Red Green Yellow Blue Magenta Cyan White IBMPC (rgb) Black Blue Green Cyan Red Magenta Yellow White */ ScreenWindow* TerminalDisplay::screenWindow() const { return _screenWindow; } void TerminalDisplay::setScreenWindow(ScreenWindow* window) { // disconnect existing screen window if any if (!_screenWindow.isNull()) { disconnect(_screenWindow , nullptr , this , nullptr); } _screenWindow = window; if (!_screenWindow.isNull()) { connect(_screenWindow.data() , &Konsole::ScreenWindow::outputChanged , this , &Konsole::TerminalDisplay::updateLineProperties); connect(_screenWindow.data() , &Konsole::ScreenWindow::outputChanged , this , &Konsole::TerminalDisplay::updateImage); connect(_screenWindow.data() , &Konsole::ScreenWindow::currentResultLineChanged , this , &Konsole::TerminalDisplay::updateImage); connect(_screenWindow.data(), &Konsole::ScreenWindow::outputChanged, this, [this]() { _filterUpdateRequired = true; }); connect(_screenWindow.data(), &Konsole::ScreenWindow::scrolled, this, [this]() { _filterUpdateRequired = true; }); _screenWindow->setWindowLines(_lines); } } const ColorEntry* TerminalDisplay::colorTable() const { return _colorTable; } void TerminalDisplay::onColorsChanged() { // Mostly just fix the scrollbar // this is a workaround to add some readability to old themes like Fusion // changing the light value for button a bit makes themes like fusion, windows and oxygen way more readable and pleasing QPalette p = QApplication::palette(); QColor buttonTextColor = _colorTable[DEFAULT_FORE_COLOR]; QColor backgroundColor = _colorTable[DEFAULT_BACK_COLOR]; backgroundColor.setAlphaF(_opacity); QColor buttonColor = backgroundColor.toHsv(); if (buttonColor.valueF() < 0.5) { buttonColor = buttonColor.lighter(); } else { buttonColor = buttonColor.darker(); } p.setColor(QPalette::Button, buttonColor); p.setColor(QPalette::Window, backgroundColor); p.setColor(QPalette::WindowText, buttonTextColor); p.setColor(QPalette::ButtonText, buttonTextColor); setPalette(p); _scrollBar->setPalette(p); update(); } void TerminalDisplay::setBackgroundColor(const QColor& color) { _colorTable[DEFAULT_BACK_COLOR] = color; onColorsChanged(); } QColor TerminalDisplay::getBackgroundColor() const { return _colorTable[DEFAULT_BACK_COLOR]; } void TerminalDisplay::setForegroundColor(const QColor& color) { _colorTable[DEFAULT_FORE_COLOR] = color; onColorsChanged(); } void TerminalDisplay::setColorTable(const ColorEntry table[]) { for (int i = 0; i < TABLE_COLORS; i++) { _colorTable[i] = table[i]; } setBackgroundColor(_colorTable[DEFAULT_BACK_COLOR]); onColorsChanged(); } /* ------------------------------------------------------------------------- */ /* */ /* Font */ /* */ /* ------------------------------------------------------------------------- */ static inline bool isLineCharString(const QString& string) { if (string.length() == 0) { return false; } return isSupportedLineChar(string.at(0).unicode()); } void TerminalDisplay::fontChange(const QFont&) { QFontMetrics fm(font()); _fontHeight = fm.height() + _lineSpacing; Q_ASSERT(_fontHeight > 0); // waba TerminalDisplay 1.123: // "Base character width on widest ASCII character. This prevents too wide // characters in the presence of double wide (e.g. Japanese) characters." // Get the width from representative normal width characters _fontWidth = qRound((static_cast(fm.width(QStringLiteral(REPCHAR))) / static_cast(qstrlen(REPCHAR)))); _fixedFont = true; const int fw = fm.width(QLatin1Char(REPCHAR[0])); for (unsigned int i = 1; i < qstrlen(REPCHAR); i++) { if (fw != fm.width(QLatin1Char(REPCHAR[i]))) { _fixedFont = false; break; } } if (_fontWidth < 1) { _fontWidth = 1; } _fontAscent = fm.ascent(); emit changedFontMetricSignal(_fontHeight, _fontWidth); propagateSize(); update(); } void TerminalDisplay::setVTFont(const QFont& f) { QFont newFont(f); int strategy = 0; QFontMetrics fontMetrics(newFont); // This check seems extreme and semi-random // TODO: research if these checks are still needed to prevent // enormous fonts from being used; consider usage on big TV // screens. if ((fontMetrics.height() > height()) || (fontMetrics.maxWidth() > width())) { // return here will cause the "general" non-fixed width font // to be selected return; } // hint that text should be drawn with- or without anti-aliasing. // depending on the user's font configuration, this may not be respected strategy |= _antialiasText ? QFont::PreferAntialias : QFont::NoAntialias; // Konsole cannot handle non-integer font metrics strategy |= QFont::ForceIntegerMetrics; // In case the provided font doesn't have some specific characters it should // fall back to a Monospace fonts. newFont.setStyleHint(QFont::TypeWriter, QFont::StyleStrategy(strategy)); // Try to check that a good font has been loaded. // For some fonts, ForceIntegerMetrics causes height() == 0 which // will cause Konsole to crash later. QFontMetrics fontMetrics2(newFont); if (fontMetrics2.height() < 1) { qCDebug(KonsoleDebug)<<"The font "<(fontInfo.styleHint())) % comma % QString::number(fontInfo.weight()) % comma % QString::number(static_cast(fontInfo.style())) % comma % QString::number(static_cast(fontInfo.underline())) % comma % QString::number(static_cast(fontInfo.strikeOut())) % comma % QString::number(static_cast(fontInfo.fixedPitch())) % comma % QString::number(static_cast(fontInfo.rawMode())); qCDebug(KonsoleDebug) << "The font to use in the terminal can not be matched exactly on your system."; qCDebug(KonsoleDebug)<<" Selected: "<sessionProfile(_sessionController->session()); const qreal defaultFontSize = currentProfile->font().pointSizeF(); font.setPointSizeF(qMax(defaultFontSize, MinimumFontSize)); setVTFont(font); } uint TerminalDisplay::lineSpacing() const { return _lineSpacing; } void TerminalDisplay::setLineSpacing(uint i) { _lineSpacing = i; setVTFont(font()); // Trigger an update. } /* ------------------------------------------------------------------------- */ /* */ /* Accessibility */ /* */ /* ------------------------------------------------------------------------- */ namespace Konsole { #ifndef QT_NO_ACCESSIBILITY /** * This function installs the factory function which lets Qt instantiate the QAccessibleInterface * for the TerminalDisplay. */ QAccessibleInterface* accessibleInterfaceFactory(const QString &key, QObject *object) { Q_UNUSED(key) if (auto *display = qobject_cast(object)) { return new TerminalDisplayAccessible(display); } return nullptr; } #endif } /* ------------------------------------------------------------------------- */ /* */ /* Constructor / Destructor */ /* */ /* ------------------------------------------------------------------------- */ TerminalDisplay::TerminalDisplay(QWidget* parent) : QWidget(parent) , _screenWindow(nullptr) , _bellMasked(false) , _verticalLayout(new QVBoxLayout(this)) , _fixedFont(true) , _fontHeight(1) , _fontWidth(1) , _fontAscent(1) , _boldIntense(true) , _lines(1) , _columns(1) , _usedLines(1) , _usedColumns(1) , _contentRect(QRect()) , _image(nullptr) , _imageSize(0) , _lineProperties(QVector()) , _randomSeed(0) , _resizing(false) , _showTerminalSizeHint(true) , _bidiEnabled(false) , _usesMouseTracking(false) , _alternateScrolling(true) , _bracketedPasteMode(false) , _iPntSel(QPoint()) , _pntSel(QPoint()) , _tripleSelBegin(QPoint()) , _actSel(0) , _wordSelectionMode(false) , _lineSelectionMode(false) , _preserveLineBreaks(true) , _columnSelectionMode(false) , _autoCopySelectedText(false) , _copyTextAsHTML(true) , _middleClickPasteMode(Enum::PasteFromX11Selection) , _scrollBar(nullptr) , _scrollbarLocation(Enum::ScrollBarRight) , _scrollFullPage(false) , _wordCharacters(QStringLiteral(":@-./_~")) , _bellMode(Enum::NotifyBell) , _allowBlinkingText(true) , _allowBlinkingCursor(false) , _textBlinking(false) , _cursorBlinking(false) , _hasTextBlinker(false) , _urlHintsModifiers(Qt::NoModifier) , _showUrlHint(false) , _reverseUrlHints(false) , _openLinksByDirectClick(false) , _ctrlRequiredForDrag(true) , _dropUrlsAsText(false) , _tripleClickMode(Enum::SelectWholeLine) , _possibleTripleClick(false) , _resizeWidget(nullptr) , _resizeTimer(nullptr) , _flowControlWarningEnabled(false) , _outputSuspendedMessageWidget(nullptr) , _lineSpacing(0) , _size(QSize()) , _blendColor(qRgba(0, 0, 0, 0xff)) , _wallpaper(nullptr) , _filterChain(new TerminalImageFilterChain()) , _mouseOverHotspotArea(QRegion()) , _filterUpdateRequired(true) , _cursorShape(Enum::BlockCursor) , _cursorColor(QColor()) , _antialiasText(true) , _useFontLineCharacters(false) , _printerFriendly(false) , _sessionController(nullptr) , _trimLeadingSpaces(false) , _trimTrailingSpaces(false) , _mouseWheelZoom(false) , _margin(1) , _centerContents(false) , _readOnlyMessageWidget(nullptr) , _readOnly(false) , _opacity(1.0) , _dimWhenInactive(false) , _scrollWheelState(ScrollState()) , _searchBar(new IncrementalSearchBar(this)) , _searchResultRect(QRect()) { // terminal applications are not designed with Right-To-Left in mind, // so the layout is forced to Left-To-Right setLayoutDirection(Qt::LeftToRight); _contentRect = QRect(_margin, _margin, 1, 1); // create scroll bar for scrolling output up and down _scrollBar = new QScrollBar(this); _scrollBar->setAutoFillBackground(false); // set the scroll bar's slider to occupy the whole area of the scroll bar initially setScroll(0, 0); _scrollBar->setCursor(Qt::ArrowCursor); connect(_scrollBar, &QScrollBar::valueChanged, this, &Konsole::TerminalDisplay::scrollBarPositionChanged); connect(_scrollBar, &QScrollBar::sliderMoved, this, &Konsole::TerminalDisplay::viewScrolledByUser); // setup timers for blinking text _blinkTextTimer = new QTimer(this); _blinkTextTimer->setInterval(TEXT_BLINK_DELAY); connect(_blinkTextTimer, &QTimer::timeout, this, &Konsole::TerminalDisplay::blinkTextEvent); // setup timers for blinking cursor _blinkCursorTimer = new QTimer(this); _blinkCursorTimer->setInterval(QApplication::cursorFlashTime() / 2); connect(_blinkCursorTimer, &QTimer::timeout, this, &Konsole::TerminalDisplay::blinkCursorEvent); // hide mouse cursor on keystroke or idle KCursor::setAutoHideCursor(this, true); setMouseTracking(true); setUsesMouseTracking(false); setBracketedPasteMode(false); setColorTable(ColorScheme::defaultTable); // Enable drag and drop support setAcceptDrops(true); _dragInfo.state = diNone; setFocusPolicy(Qt::WheelFocus); // enable input method support setAttribute(Qt::WA_InputMethodEnabled, true); // this is an important optimization, it tells Qt // that TerminalDisplay will handle repainting its entire area. setAttribute(Qt::WA_OpaquePaintEvent); // Add the stretch item once, the KMessageWidgets are inserted at index 0. _verticalLayout->addStretch(); _verticalLayout->setSpacing(0); setLayout(_verticalLayout); // Take the scrollbar into account and add a margin to the layout. Without the timer the scrollbar width // is garbage. QTimer::singleShot(0, this, [this]() { const int scrollBarWidth = _scrollBar->isVisible() ? geometry().intersected(_scrollBar->geometry()).width() : 0; _verticalLayout->setContentsMargins(0, 0, scrollBarWidth, 0); }); new AutoScrollHandler(this); #ifndef QT_NO_ACCESSIBILITY QAccessible::installFactory(Konsole::accessibleInterfaceFactory); #endif } TerminalDisplay::~TerminalDisplay() { disconnect(_blinkTextTimer); disconnect(_blinkCursorTimer); delete _readOnlyMessageWidget; delete _outputSuspendedMessageWidget; delete[] _image; delete _filterChain; _readOnlyMessageWidget = nullptr; _outputSuspendedMessageWidget = nullptr; } /* ------------------------------------------------------------------------- */ /* */ /* Display Operations */ /* */ /* ------------------------------------------------------------------------- */ /** A table for emulating the simple (single width) unicode drawing chars. It represents the 250x - 257x glyphs. If it's zero, we can't use it. if it's not, it's encoded as follows: imagine a 5x5 grid where the points are numbered 0 to 24 left to top, top to bottom. Each point is represented by the corresponding bit. Then, the pixels basically have the following interpretation: _|||_ -...- -...- -...- _|||_ where _ = none | = vertical line. - = horizontal line. */ enum LineEncode { TopL = (1 << 1), TopC = (1 << 2), TopR = (1 << 3), LeftT = (1 << 5), Int11 = (1 << 6), Int12 = (1 << 7), Int13 = (1 << 8), RightT = (1 << 9), LeftC = (1 << 10), Int21 = (1 << 11), Int22 = (1 << 12), Int23 = (1 << 13), RightC = (1 << 14), LeftB = (1 << 15), Int31 = (1 << 16), Int32 = (1 << 17), Int33 = (1 << 18), RightB = (1 << 19), BotL = (1 << 21), BotC = (1 << 22), BotR = (1 << 23) }; static void drawLineChar(QPainter& paint, int x, int y, int w, int h, uchar code) { //Calculate cell midpoints, end points. const int cx = x + w / 2; const int cy = y + h / 2. - 0.5; const int ex = x + w - 1; const int ey = y + h - 1; const quint32 toDraw = LineChars[code]; //Top _lines: if ((toDraw & TopL) != 0u) { paint.drawLine(cx - 1, y, cx - 1, cy - 2); } if ((toDraw & TopC) != 0u) { paint.drawLine(cx, y, cx, cy - 2); } if ((toDraw & TopR) != 0u) { paint.drawLine(cx + 1, y, cx + 1, cy - 2); } //Bot _lines: if ((toDraw & BotL) != 0u) { paint.drawLine(cx - 1, cy + 2, cx - 1, ey); } if ((toDraw & BotC) != 0u) { paint.drawLine(cx, cy + 2, cx, ey); } if ((toDraw & BotR) != 0u) { paint.drawLine(cx + 1, cy + 2, cx + 1, ey); } //Left _lines: if ((toDraw & LeftT) != 0u) { paint.drawLine(x, cy - 1, cx - 2, cy - 1); } if ((toDraw & LeftC) != 0u) { paint.drawLine(x, cy, cx - 2, cy); } if ((toDraw & LeftB) != 0u) { paint.drawLine(x, cy + 1, cx - 2, cy + 1); } //Right _lines: if ((toDraw & RightT) != 0u) { paint.drawLine(cx + 2, cy - 1, ex, cy - 1); } if ((toDraw & RightC) != 0u) { paint.drawLine(cx + 2, cy, ex, cy); } if ((toDraw & RightB) != 0u) { paint.drawLine(cx + 2, cy + 1, ex, cy + 1); } //Intersection points. if ((toDraw & Int11) != 0u) { paint.drawPoint(cx - 2, cy - 2); } if ((toDraw & Int12) != 0u) { paint.drawPoint(cx - 1, cy - 2); } if ((toDraw & Int13) != 0u) { paint.drawPoint(cx - 0, cy - 2); } if ((toDraw & Int21) != 0u) { paint.drawPoint(cx - 2, cy - 1); } if ((toDraw & Int22) != 0u) { paint.drawPoint(cx - 1, cy - 1); } if ((toDraw & Int23) != 0u) { paint.drawPoint(cx - 0, cy - 1); } if ((toDraw & Int31) != 0u) { paint.drawPoint(cx - 2, cy); } if ((toDraw & Int32) != 0u) { paint.drawPoint(cx - 1, cy); } if ((toDraw & Int33) != 0u) { paint.drawPoint(cx - 0, cy); } } static void drawOtherChar(QPainter& paint, int x, int y, int w, int h, uchar code) { //Calculate cell midpoints, end points. const int cx = x + w / 2; const int cy = y + h / 2. - 0.5; // Compensate for the translation, to match fonts const int ex = x + w - 1; const int ey = y + h - 1; // Double dashes if (0x4C <= code && code <= 0x4F) { const int xHalfGap = qMax(w / 15, 1); const int yHalfGap = qMax(h / 15, 1); switch (code) { case 0x4D: // BOX DRAWINGS HEAVY DOUBLE DASH HORIZONTAL paint.drawLine(x, cy - 1, cx - xHalfGap - 1, cy - 1); paint.drawLine(x, cy + 1, cx - xHalfGap - 1, cy + 1); paint.drawLine(cx + xHalfGap, cy - 1, ex, cy - 1); paint.drawLine(cx + xHalfGap, cy + 1, ex, cy + 1); // No break! Q_FALLTHROUGH(); case 0x4C: // BOX DRAWINGS LIGHT DOUBLE DASH HORIZONTAL paint.drawLine(x, cy, cx - xHalfGap - 1, cy); paint.drawLine(cx + xHalfGap, cy, ex, cy); break; case 0x4F: // BOX DRAWINGS HEAVY DOUBLE DASH VERTICAL paint.drawLine(cx - 1, y, cx - 1, cy - yHalfGap - 1); paint.drawLine(cx + 1, y, cx + 1, cy - yHalfGap - 1); paint.drawLine(cx - 1, cy + yHalfGap, cx - 1, ey); paint.drawLine(cx + 1, cy + yHalfGap, cx + 1, ey); // No break! Q_FALLTHROUGH(); case 0x4E: // BOX DRAWINGS LIGHT DOUBLE DASH VERTICAL paint.drawLine(cx, y, cx, cy - yHalfGap - 1); paint.drawLine(cx, cy + yHalfGap, cx, ey); break; } } // Rounded corner characters else if (0x6D <= code && code <= 0x70) { const int r = w * 3 / 8; const int d = 2 * r; switch (code) { case 0x6D: // BOX DRAWINGS LIGHT ARC DOWN AND RIGHT paint.drawLine(cx, cy + r, cx, ey); paint.drawLine(cx + r, cy, ex, cy); paint.drawArc(cx, cy, d, d, 90 * 16, 90 * 16); break; case 0x6E: // BOX DRAWINGS LIGHT ARC DOWN AND LEFT paint.drawLine(cx, cy + r, cx, ey); paint.drawLine(x, cy, cx - r, cy); paint.drawArc(cx - d, cy, d, d, 0 * 16, 90 * 16); break; case 0x6F: // BOX DRAWINGS LIGHT ARC UP AND LEFT paint.drawLine(cx, y, cx, cy - r); paint.drawLine(x, cy, cx - r, cy); paint.drawArc(cx - d, cy - d, d, d, 270 * 16, 90 * 16); break; case 0x70: // BOX DRAWINGS LIGHT ARC UP AND RIGHT paint.drawLine(cx, y, cx, cy - r); paint.drawLine(cx + r, cy, ex, cy); paint.drawArc(cx, cy - d, d, d, 180 * 16, 90 * 16); break; } } // Diagonals else if (0x71 <= code && code <= 0x73) { switch (code) { case 0x71: // BOX DRAWINGS LIGHT DIAGONAL UPPER RIGHT TO LOWER LEFT paint.drawLine(ex, y, x, ey); break; case 0x72: // BOX DRAWINGS LIGHT DIAGONAL UPPER LEFT TO LOWER RIGHT paint.drawLine(x, y, ex, ey); break; case 0x73: // BOX DRAWINGS LIGHT DIAGONAL CROSS paint.drawLine(ex, y, x, ey); paint.drawLine(x, y, ex, ey); break; } } } static void drawBlockChar(QPainter& paint, int x, int y, int w, int h, uchar code) { const QColor color = paint.pen().color(); const float left = x - 0.5; const float top = y - 0.5; const float cx = left + w / 2; const float cy = top + h / 2; const float right = x + w - 0.5; const float bottom = y + h - 0.5; // Default rect fills entire cell QRectF rect(left, top, w, h); // LOWER ONE EIGHTH BLOCK to LEFT ONE EIGHTH BLOCK if (code >= 0x81 && code <= 0x8f) { if (code < 0x88) { // Horizontal const int height = h * (0x88 - code) / 8; rect.setY(top + height); rect.setHeight(h - height); } else if (code > 0x88) { // Vertical const int width = w * (0x90 - code) / 8; rect.setWidth(width); } paint.fillRect(rect, color); return; } // Combinations of quarter squares // LEFT ONE EIGHTH BLOCK to QUADRANT UPPER RIGHT AND LOWER LEFT AND LOWER RIGHT if (code >= 0x96 && code <= 0x9F) { bool upperLeft = false, upperRight = false, lowerLeft = false, lowerRight = false; switch(code) { case 0x96: lowerLeft = true; break; case 0x97: lowerRight = true; break; case 0x98: upperLeft = true; break; case 0x99: upperLeft = true; lowerLeft = true; lowerRight = true; break; case 0x9a: upperLeft = true; lowerRight = true; break; case 0x9b: upperLeft = true; upperRight = true; lowerLeft = true; break; case 0x9c: upperLeft = true; upperRight = true; lowerRight = true; break; case 0x9d: upperRight = true; break; case 0x9e: upperRight = true; lowerLeft = true; break; case 0x9f: upperRight = true; lowerLeft = true; lowerRight = true; break; default: break; } if (upperLeft) { paint.fillRect(QRectF(QPointF(left, top), QPointF(cx, cy)), color); } if (upperRight) { paint.fillRect(QRectF(QPointF(cx, top), QPointF(right, cy)), color); } if (lowerLeft) { paint.fillRect(QRectF(QPointF(left, cy), QPointF(cx, bottom)), color); } if (lowerRight) { paint.fillRect(QRectF(QPointF(cx, cy), QPointF(right, bottom)), color); } return; } // And the random stuff switch(code) { case 0x80: // Top half block rect.setHeight(h / 2); paint.fillRect(rect, color); return; case 0x90: // Right half block paint.fillRect(QRectF(QPointF(cx, top), QPointF(right, bottom)), color); return; case 0x94: // Top one eighth block rect.setHeight(h / 8); paint.fillRect(rect, color); return; case 0x95: { // Right one eighth block const float width = 7 * w / 8; rect.setX(left + width); rect.setWidth(w - width); paint.fillRect(rect, color); return; } case 0x91: // Light shade paint.fillRect(rect, QBrush(color, Qt::Dense6Pattern)); return; case 0x92: // Medium shade paint.fillRect(rect, QBrush(color, Qt::Dense4Pattern)); return; case 0x93: // Dark shade paint.fillRect(rect, QBrush(color, Qt::Dense2Pattern)); return; default: break; } } void TerminalDisplay::drawLineCharString(QPainter& painter, int x, int y, const QString& str, const Character* attributes) { painter.save(); // For antialiasing, we need to shift it so the single pixel width is in the middle painter.translate(0.5, 0.5); if (((attributes->rendition & RE_BOLD) != 0) && _boldIntense) { QPen boldPen(painter.pen()); boldPen.setWidth(4); painter.setPen(boldPen); } for (int i = 0 ; i < str.length(); i++) { const uchar code = str[i].cell(); if (code >= 0x80 && code <= 0x9F) { // UPPER HALF BLOCK to QUADRANT UPPER RIGHT AND LOWER LEFT AND LOWER RIGHT drawBlockChar(painter, x + (_fontWidth * i), y, _fontWidth, _fontHeight, code); } else if (LineChars[code] != 0u) { drawLineChar(painter, x + (_fontWidth * i), y, _fontWidth, _fontHeight, code); } else { drawOtherChar(painter, x + (_fontWidth * i), y, _fontWidth, _fontHeight, code); } } painter.restore(); } void TerminalDisplay::setKeyboardCursorShape(Enum::CursorShapeEnum shape) { _cursorShape = shape; } Enum::CursorShapeEnum TerminalDisplay::keyboardCursorShape() const { return _cursorShape; } void TerminalDisplay::setCursorStyle(Enum::CursorShapeEnum shape, bool isBlinking) { setKeyboardCursorShape(shape); setBlinkingCursorEnabled(isBlinking); // when the cursor shape and blinking state are changed via the // Set Cursor Style (DECSCUSR) escape sequences in vim, and if the // cursor isn't set to blink, the cursor shape doesn't actually // change until the cursor is moved by the user; calling update() // makes the cursor shape get updated sooner. if (!isBlinking) { update(); } } void TerminalDisplay::resetCursorStyle() { Q_ASSERT(_sessionController != nullptr); Q_ASSERT(!_sessionController->session().isNull()); Profile::Ptr currentProfile = SessionManager::instance()->sessionProfile(_sessionController->session()); if (currentProfile != nullptr) { auto shape = static_cast(currentProfile->property(Profile::CursorShape)); setKeyboardCursorShape(shape); setBlinkingCursorEnabled(currentProfile->blinkingCursorEnabled()); } } void TerminalDisplay::setKeyboardCursorColor(const QColor& color) { _cursorColor = color; } QColor TerminalDisplay::keyboardCursorColor() const { return _cursorColor; } void TerminalDisplay::setOpacity(qreal opacity) { QColor color(_blendColor); color.setAlphaF(opacity); _opacity = opacity; // enable automatic background filling to prevent the display // flickering if there is no transparency /*if ( color.alpha() == 255 ) { setAutoFillBackground(true); } else { setAutoFillBackground(false); }*/ _blendColor = color.rgba(); onColorsChanged(); } void TerminalDisplay::setWallpaper(const ColorSchemeWallpaper::Ptr &p) { _wallpaper = p; } void TerminalDisplay::drawBackground(QPainter& painter, const QRect& rect, const QColor& backgroundColor, bool useOpacitySetting) { // the area of the widget showing the contents of the terminal display is drawn // using the background color from the color scheme set with setColorTable() // // the area of the widget behind the scroll-bar is drawn using the background // brush from the scroll-bar's palette, to give the effect of the scroll-bar // being outside of the terminal display and visual consistency with other KDE // applications. if (useOpacitySetting && !_wallpaper->isNull() && _wallpaper->draw(painter, rect, _opacity)) { } else if (qAlpha(_blendColor) < 0xff && useOpacitySetting) { #if defined(Q_OS_MACOS) // TODO - On MacOS, using CompositionMode doesn't work. Altering the // transparency in the color scheme alters the brightness. painter.fillRect(rect, backgroundColor); #else QColor color(backgroundColor); color.setAlpha(qAlpha(_blendColor)); const QPainter::CompositionMode originalMode = painter.compositionMode(); painter.setCompositionMode(QPainter::CompositionMode_Source); painter.fillRect(rect, color); painter.setCompositionMode(originalMode); #endif } else { painter.fillRect(rect, backgroundColor); } } void TerminalDisplay::drawCursor(QPainter& painter, const QRect& rect, const QColor& foregroundColor, const QColor& /*backgroundColor*/, bool& invertCharacterColor) { // don't draw cursor which is currently blinking if (_cursorBlinking) { return; } // shift rectangle top down one pixel to leave some space // between top and bottom QRectF cursorRect = rect.adjusted(0, 1, 0, 0); QColor cursorColor = _cursorColor.isValid() ? _cursorColor : foregroundColor; painter.setPen(cursorColor); if (_cursorShape == Enum::BlockCursor) { // draw the cursor outline, adjusting the area so that // it is draw entirely inside 'rect' int penWidth = qMax(1, painter.pen().width()); painter.drawRect(cursorRect.adjusted(penWidth / 2 + 0.5, penWidth / 2 + 0.5, - penWidth / 2 - penWidth % 2 + 0.5, - penWidth / 2 - penWidth % 2 + 0.5)); // draw the cursor body only when the widget has focus if (hasFocus()) { painter.fillRect(cursorRect, cursorColor); if (!_cursorColor.isValid()) { // invert the color used to draw the text to ensure that the character at // the cursor position is readable invertCharacterColor = true; } } } else if (_cursorShape == Enum::UnderlineCursor) { painter.drawLine(cursorRect.left(), cursorRect.bottom(), cursorRect.right(), cursorRect.bottom()); } else if (_cursorShape == Enum::IBeamCursor) { painter.drawLine(cursorRect.left(), cursorRect.top(), cursorRect.left(), cursorRect.bottom()); } } void TerminalDisplay::drawCharacters(QPainter& painter, const QRect& rect, const QString& text, const Character* style, bool invertCharacterColor) { // don't draw text which is currently blinking if (_textBlinking && ((style->rendition & RE_BLINK) != 0)) { return; } // don't draw concealed characters if ((style->rendition & RE_CONCEAL) != 0) { return; } // setup bold and underline bool useBold = (((style->rendition & RE_BOLD) != 0) && _boldIntense) || font().bold(); const bool useUnderline = ((style->rendition & RE_UNDERLINE) != 0) || font().underline(); const bool useItalic = ((style->rendition & RE_ITALIC) != 0) || font().italic(); const bool useStrikeOut = ((style->rendition & RE_STRIKEOUT) != 0) || font().strikeOut(); const bool useOverline = ((style->rendition & RE_OVERLINE) != 0) || font().overline(); QFont font = painter.font(); if (font.bold() != useBold || font.underline() != useUnderline || font.italic() != useItalic || font.strikeOut() != useStrikeOut || font.overline() != useOverline) { font.setBold(useBold); font.setUnderline(useUnderline); font.setItalic(useItalic); font.setStrikeOut(useStrikeOut); font.setOverline(useOverline); painter.setFont(font); } // setup pen const CharacterColor& textColor = (invertCharacterColor ? style->backgroundColor : style->foregroundColor); const QColor color = textColor.color(_colorTable); QPen pen = painter.pen(); if (pen.color() != color) { pen.setColor(color); painter.setPen(color); } // draw text if (isLineCharString(text) && !_useFontLineCharacters) { drawLineCharString(painter, rect.x(), rect.y(), text, style); } else { // Force using LTR as the document layout for the terminal area, because // there is no use cases for RTL emulator and RTL terminal application. // // This still allows RTL characters to be rendered in the RTL way. painter.setLayoutDirection(Qt::LeftToRight); painter.setClipRect(rect); if (_bidiEnabled) { painter.drawText(rect.x(), rect.y() + _fontAscent + _lineSpacing, text); } else { painter.drawText(rect.x(), rect.y() + _fontAscent + _lineSpacing, LTR_OVERRIDE_CHAR + text); } painter.setClipping(false); } } void TerminalDisplay::drawTextFragment(QPainter& painter , const QRect& rect, const QString& text, const Character* style) { // setup painter const QColor foregroundColor = style->foregroundColor.color(_colorTable); const QColor backgroundColor = style->backgroundColor.color(_colorTable); // draw background if different from the display's background color if (backgroundColor != getBackgroundColor()) { drawBackground(painter, rect, backgroundColor, false /* do not use transparency */); } // draw cursor shape if the current character is the cursor // this may alter the foreground and background colors bool invertCharacterColor = false; if ((style->rendition & RE_CURSOR) != 0) { drawCursor(painter, rect, foregroundColor, backgroundColor, invertCharacterColor); } // draw text drawCharacters(painter, rect, text, style, invertCharacterColor); } void TerminalDisplay::drawPrinterFriendlyTextFragment(QPainter& painter, const QRect& rect, const QString& text, const Character* style) { // Set the colors used to draw to black foreground and white // background for printer friendly output when printing Character print_style = *style; print_style.foregroundColor = CharacterColor(COLOR_SPACE_RGB, 0x00000000); print_style.backgroundColor = CharacterColor(COLOR_SPACE_RGB, 0xFFFFFFFF); // draw text drawCharacters(painter, rect, text, &print_style, false); } void TerminalDisplay::setRandomSeed(uint randomSeed) { _randomSeed = randomSeed; } uint TerminalDisplay::randomSeed() const { return _randomSeed; } // scrolls the image by 'lines', down if lines > 0 or up otherwise. // // the terminal emulation keeps track of the scrolling of the character // image as it receives input, and when the view is updated, it calls scrollImage() // with the final scroll amount. this improves performance because scrolling the // display is much cheaper than re-rendering all the text for the // part of the image which has moved up or down. // Instead only new lines have to be drawn void TerminalDisplay::scrollImage(int lines , const QRect& screenWindowRegion) { // return if there is nothing to do if ((lines == 0) || (_image == nullptr)) { return; } // if the flow control warning is enabled this will interfere with the // scrolling optimizations and cause artifacts. the simple solution here // is to just disable the optimization whilst it is visible if ((_outputSuspendedMessageWidget != nullptr) && _outputSuspendedMessageWidget->isVisible()) { return; } if ((_readOnlyMessageWidget != nullptr) && _readOnlyMessageWidget->isVisible()) { return; } // constrain the region to the display // the bottom of the region is capped to the number of lines in the display's // internal image - 2, so that the height of 'region' is strictly less // than the height of the internal image. QRect region = screenWindowRegion; region.setBottom(qMin(region.bottom(), _lines - 2)); // return if there is nothing to do if (!region.isValid() || (region.top() + abs(lines)) >= region.bottom() || _lines <= region.height()) { return; } // hide terminal size label to prevent it being scrolled if ((_resizeWidget != nullptr) && _resizeWidget->isVisible()) { _resizeWidget->hide(); } // Note: With Qt 4.4 the left edge of the scrolled area must be at 0 // to get the correct (newly exposed) part of the widget repainted. // // The right edge must be before the left edge of the scroll bar to // avoid triggering a repaint of the entire widget, the distance is // given by SCROLLBAR_CONTENT_GAP // // Set the QT_FLUSH_PAINT environment variable to '1' before starting the // application to monitor repainting. // const int scrollBarWidth = _scrollBar->isHidden() ? 0 : _scrollBar->width(); const int SCROLLBAR_CONTENT_GAP = 1; QRect scrollRect; if (_scrollbarLocation == Enum::ScrollBarLeft) { scrollRect.setLeft(scrollBarWidth + SCROLLBAR_CONTENT_GAP); scrollRect.setRight(width()); } else { scrollRect.setLeft(0); scrollRect.setRight(width() - scrollBarWidth - SCROLLBAR_CONTENT_GAP); } void* firstCharPos = &_image[ region.top() * _columns ]; void* lastCharPos = &_image[(region.top() + abs(lines)) * _columns ]; const int top = _contentRect.top() + (region.top() * _fontHeight); const int linesToMove = region.height() - abs(lines); const int bytesToMove = linesToMove * _columns * sizeof(Character); Q_ASSERT(linesToMove > 0); Q_ASSERT(bytesToMove > 0); //scroll internal image if (lines > 0) { // check that the memory areas that we are going to move are valid Q_ASSERT((char*)lastCharPos + bytesToMove < (char*)(_image + (_lines * _columns))); Q_ASSERT((lines * _columns) < _imageSize); //scroll internal image down memmove(firstCharPos , lastCharPos , bytesToMove); //set region of display to scroll scrollRect.setTop(top); } else { // check that the memory areas that we are going to move are valid Q_ASSERT((char*)firstCharPos + bytesToMove < (char*)(_image + (_lines * _columns))); //scroll internal image up memmove(lastCharPos , firstCharPos , bytesToMove); //set region of the display to scroll scrollRect.setTop(top + abs(lines) * _fontHeight); } scrollRect.setHeight(linesToMove * _fontHeight); Q_ASSERT(scrollRect.isValid() && !scrollRect.isEmpty()); //scroll the display vertically to match internal _image scroll(0 , _fontHeight * (-lines) , scrollRect); } QRegion TerminalDisplay::hotSpotRegion() const { QRegion region; foreach(Filter::HotSpot * hotSpot , _filterChain->hotSpots()) { QRect r; if (hotSpot->startLine() == hotSpot->endLine()) { r.setLeft(hotSpot->startColumn()); r.setTop(hotSpot->startLine()); r.setRight(hotSpot->endColumn()); r.setBottom(hotSpot->endLine()); region |= imageToWidget(r); } else { r.setLeft(hotSpot->startColumn()); r.setTop(hotSpot->startLine()); r.setRight(_columns); r.setBottom(hotSpot->startLine()); region |= imageToWidget(r); for (int line = hotSpot->startLine() + 1 ; line < hotSpot->endLine() ; line++) { r.setLeft(0); r.setTop(line); r.setRight(_columns); r.setBottom(line); region |= imageToWidget(r); } r.setLeft(0); r.setTop(hotSpot->endLine()); r.setRight(hotSpot->endColumn()); r.setBottom(hotSpot->endLine()); region |= imageToWidget(r); } } return region; } void TerminalDisplay::processFilters() { if (_screenWindow.isNull()) { return; } if (!_filterUpdateRequired) { return; } QRegion preUpdateHotSpots = hotSpotRegion(); // use _screenWindow->getImage() here rather than _image because // other classes may call processFilters() when this display's // ScreenWindow emits a scrolled() signal - which will happen before // updateImage() is called on the display and therefore _image is // out of date at this point _filterChain->setImage(_screenWindow->getImage(), _screenWindow->windowLines(), _screenWindow->windowColumns(), _screenWindow->getLineProperties()); _filterChain->process(); QRegion postUpdateHotSpots = hotSpotRegion(); update(preUpdateHotSpots | postUpdateHotSpots); _filterUpdateRequired = false; } void TerminalDisplay::updateImage() { if (_screenWindow.isNull()) { return; } // optimization - scroll the existing image where possible and // avoid expensive text drawing for parts of the image that // can simply be moved up or down // disable this shortcut for transparent konsole with scaled pixels, otherwise we get rendering artifacts, see BUG 350651 if (!(WindowSystemInfo::HAVE_TRANSPARENCY && (qApp->devicePixelRatio() > 1.0)) && _wallpaper->isNull() && !_searchBar->isVisible()) { scrollImage(_screenWindow->scrollCount() , _screenWindow->scrollRegion()); } if (_image == nullptr) { // Create _image. // The emitted changedContentSizeSignal also leads to getImage being recreated, so do this first. updateImageSize(); } Character* const newimg = _screenWindow->getImage(); const int lines = _screenWindow->windowLines(); const int columns = _screenWindow->windowColumns(); setScroll(_screenWindow->currentLine() , _screenWindow->lineCount()); Q_ASSERT(_usedLines <= _lines); Q_ASSERT(_usedColumns <= _columns); int y, x, len; const QPoint tL = contentsRect().topLeft(); const int tLx = tL.x(); const int tLy = tL.y(); _hasTextBlinker = false; CharacterColor cf; // undefined const int linesToUpdate = qMin(_lines, qMax(0, lines)); const int columnsToUpdate = qMin(_columns, qMax(0, columns)); auto dirtyMask = new char[columnsToUpdate + 2]; QRegion dirtyRegion; // debugging variable, this records the number of lines that are found to // be 'dirty' ( ie. have changed from the old _image to the new _image ) and // which therefore need to be repainted int dirtyLineCount = 0; for (y = 0; y < linesToUpdate; ++y) { const Character* currentLine = &_image[y * _columns]; const Character* const newLine = &newimg[y * columns]; bool updateLine = false; // The dirty mask indicates which characters need repainting. We also // mark surrounding neighbors dirty, in case the character exceeds // its cell boundaries memset(dirtyMask, 0, columnsToUpdate + 2); for (x = 0 ; x < columnsToUpdate ; ++x) { if (newLine[x] != currentLine[x]) { dirtyMask[x] = 1; } } if (!_resizing) { // not while _resizing, we're expecting a paintEvent for (x = 0; x < columnsToUpdate; ++x) { _hasTextBlinker |= (newLine[x].rendition & RE_BLINK); // Start drawing if this character or the next one differs. // We also take the next one into account to handle the situation // where characters exceed their cell width. if (dirtyMask[x] != 0) { if (newLine[x + 0].character == 0u) { continue; } const bool lineDraw = newLine[x + 0].isLineChar(); const bool doubleWidth = (x + 1 == columnsToUpdate) ? false : (newLine[x + 1].character == 0); const RenditionFlags cr = newLine[x].rendition; const CharacterColor clipboard = newLine[x].backgroundColor; if (newLine[x].foregroundColor != cf) { cf = newLine[x].foregroundColor; } const int lln = columnsToUpdate - x; for (len = 1; len < lln; ++len) { const Character& ch = newLine[x + len]; if (ch.character == 0u) { continue; // Skip trailing part of multi-col chars. } const bool nextIsDoubleWidth = (x + len + 1 == columnsToUpdate) ? false : (newLine[x + len + 1].character == 0); if (ch.foregroundColor != cf || ch.backgroundColor != clipboard || (ch.rendition & ~RE_EXTENDED_CHAR) != (cr & ~RE_EXTENDED_CHAR) || (dirtyMask[x + len] == 0) || ch.isLineChar() != lineDraw || nextIsDoubleWidth != doubleWidth) { break; } } const bool saveFixedFont = _fixedFont; if (lineDraw) { _fixedFont = false; } if (doubleWidth) { _fixedFont = false; } updateLine = true; _fixedFont = saveFixedFont; x += len - 1; } } } //both the top and bottom halves of double height _lines must always be redrawn //although both top and bottom halves contain the same characters, only //the top one is actually //drawn. if (_lineProperties.count() > y) { updateLine |= (_lineProperties[y] & LINE_DOUBLEHEIGHT); } // if the characters on the line are different in the old and the new _image // then this line must be repainted. if (updateLine) { dirtyLineCount++; // add the area occupied by this line to the region which needs to be // repainted QRect dirtyRect = QRect(_contentRect.left() + tLx , _contentRect.top() + tLy + _fontHeight * y , _fontWidth * columnsToUpdate , _fontHeight); dirtyRegion |= dirtyRect; } // replace the line of characters in the old _image with the // current line of the new _image memcpy((void*)currentLine, (const void*)newLine, columnsToUpdate * sizeof(Character)); } // if the new _image is smaller than the previous _image, then ensure that the area // outside the new _image is cleared if (linesToUpdate < _usedLines) { dirtyRegion |= QRect(_contentRect.left() + tLx , _contentRect.top() + tLy + _fontHeight * linesToUpdate , _fontWidth * _columns , _fontHeight * (_usedLines - linesToUpdate)); } _usedLines = linesToUpdate; if (columnsToUpdate < _usedColumns) { dirtyRegion |= QRect(_contentRect.left() + tLx + columnsToUpdate * _fontWidth , _contentRect.top() + tLy , _fontWidth * (_usedColumns - columnsToUpdate) , _fontHeight * _lines); } _usedColumns = columnsToUpdate; dirtyRegion |= _inputMethodData.previousPreeditRect; if ((_screenWindow->currentResultLine() != -1) && (_screenWindow->scrollCount() != 0)) { // De-highlight previous result region dirtyRegion |= _searchResultRect; // Highlight new result region dirtyRegion |= QRect(0, _contentRect.top() + (_screenWindow->currentResultLine() - _screenWindow->currentLine()) * _fontHeight, _columns * _fontWidth, _fontHeight); } _screenWindow->resetScrollCount(); // update the parts of the display which have changed update(dirtyRegion); if (_allowBlinkingText && _hasTextBlinker && !_blinkTextTimer->isActive()) { _blinkTextTimer->start(); } if (!_hasTextBlinker && _blinkTextTimer->isActive()) { _blinkTextTimer->stop(); _textBlinking = false; } delete[] dirtyMask; #ifndef QT_NO_ACCESSIBILITY QAccessibleEvent dataChangeEvent(this, QAccessible::VisibleDataChanged); QAccessible::updateAccessibility(&dataChangeEvent); QAccessibleTextCursorEvent cursorEvent(this, _usedColumns * screenWindow()->screen()->getCursorY() + screenWindow()->screen()->getCursorX()); QAccessible::updateAccessibility(&cursorEvent); #endif } void TerminalDisplay::showResizeNotification() { if (_showTerminalSizeHint && isVisible()) { if (_resizeWidget == nullptr) { _resizeWidget = new QLabel(i18n("Size: XXX x XXX"), this); _resizeWidget->setMinimumWidth(_resizeWidget->fontMetrics().width(i18n("Size: XXX x XXX"))); _resizeWidget->setMinimumHeight(_resizeWidget->sizeHint().height()); _resizeWidget->setAlignment(Qt::AlignCenter); _resizeWidget->setStyleSheet(QStringLiteral("background-color:palette(window);border-style:solid;border-width:1px;border-color:palette(dark)")); _resizeTimer = new QTimer(this); _resizeTimer->setInterval(SIZE_HINT_DURATION); _resizeTimer->setSingleShot(true); connect(_resizeTimer, &QTimer::timeout, _resizeWidget, &QLabel::hide); } QString sizeStr = i18n("Size: %1 x %2", _columns, _lines); _resizeWidget->setText(sizeStr); _resizeWidget->move((width() - _resizeWidget->width()) / 2, (height() - _resizeWidget->height()) / 2 + 20); _resizeWidget->show(); _resizeTimer->start(); } } void TerminalDisplay::paintEvent(QPaintEvent* pe) { QPainter paint(this); // Determine which characters should be repainted (1 region unit = 1 character) QRegion dirtyImageRegion; foreach(const QRect & rect, (pe->region() & contentsRect()).rects()) { dirtyImageRegion += widgetToImage(rect); drawBackground(paint, rect, getBackgroundColor(), true /* use opacity setting */); } paint.setRenderHint(QPainter::Antialiasing, _antialiasText); foreach(const QRect & rect, dirtyImageRegion.rects()) { drawContents(paint, rect); } drawCurrentResultRect(paint); drawInputMethodPreeditString(paint, preeditRect()); paintFilters(paint); const bool drawDimmed = _dimWhenInactive && !hasFocus(); const QColor dimColor(0, 0, 0, 128); foreach(const QRect & rect, (pe->region() & contentsRect()).rects()) { if (drawDimmed) { paint.fillRect(rect, dimColor); } } } void TerminalDisplay::printContent(QPainter& painter, bool friendly) { // Reinitialize the font with the printers paint device so the font // measurement calculations will be done correctly QFont savedFont = getVTFont(); QFont font(savedFont, painter.device()); painter.setFont(font); setVTFont(font); QRect rect(0, 0, _usedColumns, _usedLines); _printerFriendly = friendly; if (!friendly) { drawBackground(painter, rect, getBackgroundColor(), true /* use opacity setting */); } drawContents(painter, rect); _printerFriendly = false; setVTFont(savedFont); } QPoint TerminalDisplay::cursorPosition() const { if (!_screenWindow.isNull()) { return _screenWindow->cursorPosition(); } else { return {0, 0}; } } inline bool TerminalDisplay::isCursorOnDisplay() const { return cursorPosition().x() < _columns && cursorPosition().y() < _lines; } FilterChain* TerminalDisplay::filterChain() const { return _filterChain; } void TerminalDisplay::paintFilters(QPainter& painter) { if (_filterUpdateRequired) { return; } // get color of character under mouse and use it to draw // lines for filters QPoint cursorPos = mapFromGlobal(QCursor::pos()); int cursorLine; int cursorColumn; getCharacterPosition(cursorPos, cursorLine, cursorColumn, false); Character cursorCharacter = _image[loc(qMin(cursorColumn, _columns - 1), cursorLine)]; painter.setPen(QPen(cursorCharacter.foregroundColor.color(_colorTable))); // iterate over hotspots identified by the display's currently active filters // and draw appropriate visuals to indicate the presence of the hotspot QList spots = _filterChain->hotSpots(); int urlNumber, urlNumInc; if (_reverseUrlHints) { urlNumber = spots.size() + 1; urlNumInc = -1; } else { urlNumber = 0; urlNumInc = 1; } foreach(Filter::HotSpot* spot, spots) { urlNumber += urlNumInc; QRegion region; if (spot->type() == Filter::HotSpot::Link) { QRect r; if (spot->startLine() == spot->endLine()) { r.setCoords(spot->startColumn()*_fontWidth + _contentRect.left(), spot->startLine()*_fontHeight + _contentRect.top(), (spot->endColumn())*_fontWidth + _contentRect.left() - 1, (spot->endLine() + 1)*_fontHeight + _contentRect.top() - 1); region |= r; } else { r.setCoords(spot->startColumn()*_fontWidth + _contentRect.left(), spot->startLine()*_fontHeight + _contentRect.top(), (_columns)*_fontWidth + _contentRect.left() - 1, (spot->startLine() + 1)*_fontHeight + _contentRect.top() - 1); region |= r; for (int line = spot->startLine() + 1 ; line < spot->endLine() ; line++) { r.setCoords(0 * _fontWidth + _contentRect.left(), line * _fontHeight + _contentRect.top(), (_columns)*_fontWidth + _contentRect.left() - 1, (line + 1)*_fontHeight + _contentRect.top() - 1); region |= r; } r.setCoords(0 * _fontWidth + _contentRect.left(), spot->endLine()*_fontHeight + _contentRect.top(), (spot->endColumn())*_fontWidth + _contentRect.left() - 1, (spot->endLine() + 1)*_fontHeight + _contentRect.top() - 1); region |= r; } if (_showUrlHint && urlNumber < 10) { // Position at the beginning of the URL const QVector regionRects = region.rects(); QRect hintRect(regionRects.first()); hintRect.setWidth(r.height()); painter.fillRect(hintRect, QColor(0, 0, 0, 128)); painter.setPen(Qt::white); painter.drawRect(hintRect.adjusted(0, 0, -1, -1)); painter.drawText(hintRect, Qt::AlignCenter, QString::number(urlNumber)); } } for (int line = spot->startLine() ; line <= spot->endLine() ; line++) { int startColumn = 0; int endColumn = _columns - 1; // TODO use number of _columns which are actually // occupied on this line rather than the width of the // display in _columns // Check image size so _image[] is valid (see makeImage) if (endColumn >= _columns || line >= _lines) { break; } // ignore whitespace at the end of the lines while (_image[loc(endColumn, line)].isSpace() && endColumn > 0) { endColumn--; } // increment here because the column which we want to set 'endColumn' to // is the first whitespace character at the end of the line endColumn++; if (line == spot->startLine()) { startColumn = spot->startColumn(); } if (line == spot->endLine()) { endColumn = spot->endColumn(); } // TODO: resolve this comment with the new margin/center code // subtract one pixel from // the right and bottom so that // we do not overdraw adjacent // hotspots // // subtracting one pixel from all sides also prevents an edge case where // moving the mouse outside a link could still leave it underlined // because the check below for the position of the cursor // finds it on the border of the target area QRect r; r.setCoords(startColumn * _fontWidth + _contentRect.left(), line * _fontHeight + _contentRect.top(), endColumn * _fontWidth + _contentRect.left() - 1, (line + 1)*_fontHeight + _contentRect.top() - 1); // Underline link hotspots if (spot->type() == Filter::HotSpot::Link) { QFontMetrics metrics(font()); // find the baseline (which is the invisible line that the characters in the font sit on, // with some having tails dangling below) const int baseline = r.bottom() - metrics.descent(); // find the position of the underline below that const int underlinePos = baseline + metrics.underlinePos(); if (_showUrlHint || region.contains(mapFromGlobal(QCursor::pos()))) { painter.drawLine(r.left() , underlinePos , r.right() , underlinePos); } // Marker hotspots simply have a transparent rectangular shape // drawn on top of them } else if (spot->type() == Filter::HotSpot::Marker) { //TODO - Do not use a hardcoded color for this const bool isCurrentResultLine = (_screenWindow->currentResultLine() == (spot->startLine() + _screenWindow->currentLine())); QColor color = isCurrentResultLine ? QColor(255, 255, 0, 120) : QColor(255, 0, 0, 120); painter.fillRect(r, color); } } } } inline static bool isRtl(const Character &chr) { uint c = 0; if ((chr.rendition & RE_EXTENDED_CHAR) == 0) { c = chr.character; } else { ushort extendedCharLength = 0; const uint* chars = ExtendedCharTable::instance.lookupExtendedChar(chr.character, extendedCharLength); if (chars != nullptr) { c = chars[0]; } } switch(QChar::direction(c)) { case QChar::DirR: case QChar::DirAL: case QChar::DirRLE: case QChar::DirRLI: case QChar::DirRLO: return true; default: return false; } } void TerminalDisplay::drawContents(QPainter& paint, const QRect& rect) { const int numberOfColumns = _usedColumns; QVector univec; univec.reserve(numberOfColumns); for (int y = rect.y(); y <= rect.bottom(); y++) { int x = rect.x(); if ((_image[loc(rect.x(), y)].character == 0u) && (x != 0)) { x--; // Search for start of multi-column character } for (; x <= rect.right(); x++) { int len = 1; int p = 0; // reset our buffer to the number of columns int bufferSize = numberOfColumns; univec.resize(bufferSize); uint *disstrU = univec.data(); // is this a single character or a sequence of characters ? if ((_image[loc(x, y)].rendition & RE_EXTENDED_CHAR) != 0) { // sequence of characters ushort extendedCharLength = 0; const uint* chars = ExtendedCharTable::instance.lookupExtendedChar(_image[loc(x, y)].character, extendedCharLength); if (chars != nullptr) { Q_ASSERT(extendedCharLength > 1); bufferSize += extendedCharLength - 1; univec.resize(bufferSize); disstrU = univec.data(); for (int index = 0 ; index < extendedCharLength ; index++) { Q_ASSERT(p < bufferSize); disstrU[p++] = chars[index]; } } } else { // single character const uint c = _image[loc(x, y)].character; if (c != 0u) { Q_ASSERT(p < bufferSize); disstrU[p++] = c; } } const bool lineDraw = _image[loc(x, y)].isLineChar(); const bool doubleWidth = (_image[qMin(loc(x, y) + 1, _imageSize - 1)].character == 0); const CharacterColor currentForeground = _image[loc(x, y)].foregroundColor; const CharacterColor currentBackground = _image[loc(x, y)].backgroundColor; const RenditionFlags currentRendition = _image[loc(x, y)].rendition; const bool rtl = isRtl(_image[loc(x, y)]); if(_image[loc(x, y)].character <= 0x7e || rtl) { while (x + len <= rect.right() && _image[loc(x + len, y)].foregroundColor == currentForeground && _image[loc(x + len, y)].backgroundColor == currentBackground && (_image[loc(x + len, y)].rendition & ~RE_EXTENDED_CHAR) == (currentRendition & ~RE_EXTENDED_CHAR) && (_image[qMin(loc(x + len, y) + 1, _imageSize - 1)].character == 0) == doubleWidth && _image[loc(x + len, y)].isLineChar() == lineDraw && (_image[loc(x + len, y)].character <= 0x7e || rtl)) { const uint c = _image[loc(x + len, y)].character; if ((_image[loc(x + len, y)].rendition & RE_EXTENDED_CHAR) != 0) { // sequence of characters ushort extendedCharLength = 0; const uint* chars = ExtendedCharTable::instance.lookupExtendedChar(c, extendedCharLength); if (chars != nullptr) { Q_ASSERT(extendedCharLength > 1); bufferSize += extendedCharLength - 1; univec.resize(bufferSize); disstrU = univec.data(); for (int index = 0 ; index < extendedCharLength ; index++) { Q_ASSERT(p < bufferSize); disstrU[p++] = chars[index]; } } } else { // single character if (c != 0u) { Q_ASSERT(p < bufferSize); disstrU[p++] = c; } } if (doubleWidth) { // assert((_image[loc(x+len,y)+1].character == 0)), see above if condition len++; // Skip trailing part of multi-column character } len++; } } if ((x + len < _usedColumns) && (_image[loc(x + len, y)].character == 0u)) { len++; // Adjust for trailing part of multi-column character } const bool save__fixedFont = _fixedFont; if (lineDraw) { _fixedFont = false; } if (doubleWidth) { _fixedFont = false; } univec.resize(p); // Create a text scaling matrix for double width and double height lines. QMatrix textScale; if (y < _lineProperties.size()) { if ((_lineProperties[y] & LINE_DOUBLEWIDTH) != 0) { textScale.scale(2, 1); } if ((_lineProperties[y] & LINE_DOUBLEHEIGHT) != 0) { textScale.scale(1, 2); } } //Apply text scaling matrix. paint.setWorldMatrix(textScale, true); //calculate the area in which the text will be drawn QRect textArea = QRect(_contentRect.left() + contentsRect().left() + _fontWidth * x, _contentRect.top() + contentsRect().top() + _fontHeight * y, _fontWidth * len, _fontHeight); //move the calculated area to take account of scaling applied to the painter. //the position of the area from the origin (0,0) is scaled //by the opposite of whatever //transformation has been applied to the painter. this ensures that //painting does actually start from textArea.topLeft() //(instead of textArea.topLeft() * painter-scale) textArea.moveTopLeft(textScale.inverted().map(textArea.topLeft())); QString unistr = QString::fromUcs4(univec.data(), univec.length()); //paint text fragment if (_printerFriendly) { drawPrinterFriendlyTextFragment(paint, textArea, unistr, &_image[loc(x, y)]); } else { drawTextFragment(paint, textArea, unistr, &_image[loc(x, y)]); } _fixedFont = save__fixedFont; //reset back to single-width, single-height _lines paint.setWorldMatrix(textScale.inverted(), true); if (y < _lineProperties.size() - 1) { //double-height _lines are represented by two adjacent _lines //containing the same characters //both _lines will have the LINE_DOUBLEHEIGHT attribute. //If the current line has the LINE_DOUBLEHEIGHT attribute, //we can therefore skip the next line if ((_lineProperties[y] & LINE_DOUBLEHEIGHT) != 0) { y++; } } x += len - 1; } } } void TerminalDisplay::drawCurrentResultRect(QPainter& painter) { if(_screenWindow->currentResultLine() == -1) { return; } _searchResultRect.setRect(0, _contentRect.top() + (_screenWindow->currentResultLine() - _screenWindow->currentLine()) * _fontHeight, _columns * _fontWidth, _fontHeight); painter.fillRect(_searchResultRect, QColor(0, 0, 255, 80)); } QRect TerminalDisplay::imageToWidget(const QRect& imageArea) const { QRect result; result.setLeft(_contentRect.left() + _fontWidth * imageArea.left()); result.setTop(_contentRect.top() + _fontHeight * imageArea.top()); result.setWidth(_fontWidth * imageArea.width()); result.setHeight(_fontHeight * imageArea.height()); return result; } QRect TerminalDisplay::widgetToImage(const QRect &widgetArea) const { QRect result; result.setLeft( qMin(_usedColumns - 1, qMax(0, (widgetArea.left() - contentsRect().left() - _contentRect.left()) / _fontWidth ))); result.setTop( qMin(_usedLines - 1, qMax(0, (widgetArea.top() - contentsRect().top() - _contentRect.top() ) / _fontHeight))); result.setRight( qMin(_usedColumns - 1, qMax(0, (widgetArea.right() - contentsRect().left() - _contentRect.left()) / _fontWidth ))); result.setBottom(qMin(_usedLines - 1, qMax(0, (widgetArea.bottom() - contentsRect().top() - _contentRect.top() ) / _fontHeight))); return result; } /* ------------------------------------------------------------------------- */ /* */ /* Blinking Text & Cursor */ /* */ /* ------------------------------------------------------------------------- */ void TerminalDisplay::setBlinkingCursorEnabled(bool blink) { _allowBlinkingCursor = blink; if (blink && !_blinkCursorTimer->isActive()) { _blinkCursorTimer->start(); } if (!blink && _blinkCursorTimer->isActive()) { _blinkCursorTimer->stop(); if (_cursorBlinking) { // if cursor is blinking(hidden), blink it again to make it show _cursorBlinking = false; updateCursor(); } Q_ASSERT(!_cursorBlinking); } } void TerminalDisplay::setBlinkingTextEnabled(bool blink) { _allowBlinkingText = blink; if (blink && !_blinkTextTimer->isActive()) { _blinkTextTimer->start(); } if (!blink && _blinkTextTimer->isActive()) { _blinkTextTimer->stop(); _textBlinking = false; } } void TerminalDisplay::focusOutEvent(QFocusEvent*) { // trigger a repaint of the cursor so that it is both: // // * visible (in case it was hidden during blinking) // * drawn in a focused out state _cursorBlinking = false; updateCursor(); // suppress further cursor blinking _blinkCursorTimer->stop(); Q_ASSERT(!_cursorBlinking); // if text is blinking (hidden), blink it again to make it shown if (_textBlinking) { blinkTextEvent(); } // suppress further text blinking _blinkTextTimer->stop(); Q_ASSERT(!_textBlinking); _showUrlHint = false; emit focusLost(); } void TerminalDisplay::focusInEvent(QFocusEvent*) { if (_allowBlinkingCursor) { _blinkCursorTimer->start(); } updateCursor(); if (_allowBlinkingText && _hasTextBlinker) { _blinkTextTimer->start(); } emit focusGained(); } void TerminalDisplay::blinkTextEvent() { Q_ASSERT(_allowBlinkingText); _textBlinking = !_textBlinking; // TODO: Optimize to only repaint the areas of the widget where there is // blinking text rather than repainting the whole widget. update(); } void TerminalDisplay::blinkCursorEvent() { Q_ASSERT(_allowBlinkingCursor); _cursorBlinking = !_cursorBlinking; updateCursor(); } void TerminalDisplay::updateCursor() { if (!isCursorOnDisplay()){ return; } const int cursorLocation = loc(cursorPosition().x(), cursorPosition().y()); Q_ASSERT(cursorLocation < _imageSize); int charWidth = _image[cursorLocation].width(); QRect cursorRect = imageToWidget(QRect(cursorPosition(), QSize(charWidth, 1))); update(cursorRect); } /* ------------------------------------------------------------------------- */ /* */ /* Geometry & Resizing */ /* */ /* ------------------------------------------------------------------------- */ void TerminalDisplay::resizeEvent(QResizeEvent *event) { const auto width = event->size().width() - _scrollBar->geometry().width(); _searchBar->correctPosition(QSize(width, event->size().height())); if (contentsRect().isValid()) { updateImageSize(); } } void TerminalDisplay::propagateSize() { if (_image != nullptr) { updateImageSize(); } } void TerminalDisplay::updateImageSize() { Character* oldImage = _image; const int oldLines = _lines; const int oldColumns = _columns; makeImage(); if (oldImage != nullptr) { // copy the old image to reduce flicker int lines = qMin(oldLines, _lines); int columns = qMin(oldColumns, _columns); for (int line = 0; line < lines; line++) { memcpy((void*)&_image[_columns * line], (void*)&oldImage[oldColumns * line], columns * sizeof(Character)); } delete[] oldImage; } if (!_screenWindow.isNull()) { _screenWindow->setWindowLines(_lines); } _resizing = (oldLines != _lines) || (oldColumns != _columns); if (_resizing) { showResizeNotification(); emit changedContentSizeSignal(_contentRect.height(), _contentRect.width()); // expose resizeEvent } _resizing = false; } void TerminalDisplay::makeImage() { _wallpaper->load(); calcGeometry(); // confirm that array will be of non-zero size, since the painting code // assumes a non-zero array length Q_ASSERT(_lines > 0 && _columns > 0); Q_ASSERT(_usedLines <= _lines && _usedColumns <= _columns); _imageSize = _lines * _columns; _image = new Character[_imageSize]; clearImage(); } void TerminalDisplay::clearImage() { for (int i = 0; i < _imageSize; ++i) { _image[i] = Screen::DefaultChar; } } void TerminalDisplay::calcGeometry() { _scrollBar->resize(_scrollBar->sizeHint().width(), contentsRect().height()); _contentRect = contentsRect().adjusted(_margin, _margin, -_margin, -_margin); switch (_scrollbarLocation) { case Enum::ScrollBarHidden : break; case Enum::ScrollBarLeft : _contentRect.setLeft(_contentRect.left() + _scrollBar->width()); _scrollBar->move(contentsRect().topLeft()); break; case Enum::ScrollBarRight: _contentRect.setRight(_contentRect.right() - _scrollBar->width()); _scrollBar->move(contentsRect().topRight() - QPoint(_scrollBar->width() - 1, 0)); break; } // ensure that display is always at least one column wide _columns = qMax(1, _contentRect.width() / _fontWidth); _usedColumns = qMin(_usedColumns, _columns); // ensure that display is always at least one line high _lines = qMax(1, _contentRect.height() / _fontHeight); _usedLines = qMin(_usedLines, _lines); if(_centerContents) { QSize unusedPixels = _contentRect.size() - QSize(_columns * _fontWidth, _lines * _fontHeight); _contentRect.adjust(unusedPixels.width() / 2, unusedPixels.height() / 2, 0, 0); } } // calculate the needed size, this must be synced with calcGeometry() void TerminalDisplay::setSize(int columns, int lines) { const int scrollBarWidth = _scrollBar->isHidden() ? 0 : _scrollBar->sizeHint().width(); const int horizontalMargin = _margin * 2; const int verticalMargin = _margin * 2; QSize newSize = QSize(horizontalMargin + scrollBarWidth + (columns * _fontWidth) , verticalMargin + (lines * _fontHeight)); if (newSize != size()) { _size = newSize; updateGeometry(); } } QSize TerminalDisplay::sizeHint() const { return _size; } //showEvent and hideEvent are reimplemented here so that it appears to other classes that the //display has been resized when the display is hidden or shown. // //TODO: Perhaps it would be better to have separate signals for show and hide instead of using //the same signal as the one for a content size change void TerminalDisplay::showEvent(QShowEvent*) { propagateSize(); emit changedContentSizeSignal(_contentRect.height(), _contentRect.width()); } void TerminalDisplay::hideEvent(QHideEvent*) { emit changedContentSizeSignal(_contentRect.height(), _contentRect.width()); } void TerminalDisplay::setMargin(int margin) { if (margin < 0) { margin = 0; } _margin = margin; updateImageSize(); } void TerminalDisplay::setCenterContents(bool enable) { _centerContents = enable; calcGeometry(); update(); } /* ------------------------------------------------------------------------- */ /* */ /* Scrollbar */ /* */ /* ------------------------------------------------------------------------- */ void TerminalDisplay::setScrollBarPosition(Enum::ScrollBarPositionEnum position) { if (_scrollbarLocation == position) { return; } if (position == Enum::ScrollBarHidden) { _scrollBar->hide(); } else { _scrollBar->show(); } _scrollbarLocation = position; propagateSize(); update(); } void TerminalDisplay::scrollBarPositionChanged(int) { if (_screenWindow.isNull()) { return; } _screenWindow->scrollTo(_scrollBar->value()); // if the thumb has been moved to the bottom of the _scrollBar then set // the display to automatically track new output, // that is, scroll down automatically // to how new _lines as they are added const bool atEndOfOutput = (_scrollBar->value() == _scrollBar->maximum()); _screenWindow->setTrackOutput(atEndOfOutput); updateImage(); } void TerminalDisplay::setScroll(int cursor, int slines) { // update _scrollBar if the range or value has changed, // otherwise return // // setting the range or value of a _scrollBar will always trigger // a repaint, so it should be avoided if it is not necessary if (_scrollBar->minimum() == 0 && _scrollBar->maximum() == (slines - _lines) && _scrollBar->value() == cursor) { return; } disconnect(_scrollBar, &QScrollBar::valueChanged, this, &Konsole::TerminalDisplay::scrollBarPositionChanged); _scrollBar->setRange(0, slines - _lines); _scrollBar->setSingleStep(1); _scrollBar->setPageStep(_lines); _scrollBar->setValue(cursor); connect(_scrollBar, &QScrollBar::valueChanged, this, &Konsole::TerminalDisplay::scrollBarPositionChanged); } void TerminalDisplay::setScrollFullPage(bool fullPage) { _scrollFullPage = fullPage; } bool TerminalDisplay::scrollFullPage() const { return _scrollFullPage; } /* ------------------------------------------------------------------------- */ /* */ /* Mouse */ /* */ /* ------------------------------------------------------------------------- */ void TerminalDisplay::mousePressEvent(QMouseEvent* ev) { if (_possibleTripleClick && (ev->button() == Qt::LeftButton)) { mouseTripleClickEvent(ev); return; } if (!contentsRect().contains(ev->pos())) { return; } if (_screenWindow.isNull()) { return; } // Ignore clicks on the message widget if (_readOnlyMessageWidget != nullptr) { if (_readOnlyMessageWidget->isVisible() && _readOnlyMessageWidget->frameGeometry().contains(ev->pos())) { return; } } if (_outputSuspendedMessageWidget != nullptr) { if (_outputSuspendedMessageWidget->isVisible() && _outputSuspendedMessageWidget->frameGeometry().contains(ev->pos())) { return; } } int charLine; int charColumn; getCharacterPosition(ev->pos(), charLine, charColumn, !_usesMouseTracking); QPoint pos = QPoint(charColumn, charLine); if (ev->button() == Qt::LeftButton) { // request the software keyboard, if any if (qApp->autoSipEnabled()) { auto behavior = QStyle::RequestSoftwareInputPanel( style()->styleHint(QStyle::SH_RequestSoftwareInputPanel)); if (hasFocus() || behavior == QStyle::RSIP_OnMouseClick) { QEvent event(QEvent::RequestSoftwareInputPanel); QApplication::sendEvent(this, &event); } } if (!ev->modifiers()) { _lineSelectionMode = false; _wordSelectionMode = false; } // The user clicked inside selected text bool selected = _screenWindow->isSelected(pos.x(), pos.y()); // Drag only when the Control key is held if ((!_ctrlRequiredForDrag || ((ev->modifiers() & Qt::ControlModifier) != 0u)) && selected) { _dragInfo.state = diPending; _dragInfo.start = ev->pos(); } else { // No reason to ever start a drag event _dragInfo.state = diNone; _preserveLineBreaks = !(((ev->modifiers() & Qt::ControlModifier) != 0u) && !(ev->modifiers() & Qt::AltModifier)); _columnSelectionMode = ((ev->modifiers() & Qt::AltModifier) != 0u) && ((ev->modifiers() & Qt::ControlModifier) != 0u); // There are a couple of use cases when selecting text : // Normal buffer or Alternate buffer when not using Mouse Tracking: // select text or extendSelection or columnSelection or columnSelection + extendSelection // // Alternate buffer when using Mouse Tracking and with Shift pressed: // select text or columnSelection if (!_usesMouseTracking && ((ev->modifiers() == Qt::ShiftModifier) || (((ev->modifiers() & Qt::ShiftModifier) != 0u) && _columnSelectionMode))) { extendSelection(ev->pos()); } else if ((!_usesMouseTracking && !((ev->modifiers() & Qt::ShiftModifier))) || (_usesMouseTracking && ((ev->modifiers() & Qt::ShiftModifier) != 0u))) { _screenWindow->clearSelection(); pos.ry() += _scrollBar->value(); _iPntSel = _pntSel = pos; _actSel = 1; // left mouse button pressed but nothing selected yet. } else if (_usesMouseTracking && !_readOnly) { emit mouseSignal(0, charColumn + 1, charLine + 1 + _scrollBar->value() - _scrollBar->maximum() , 0); } if ((_openLinksByDirectClick || ((ev->modifiers() & Qt::ControlModifier) != 0u))) { Filter::HotSpot* spot = _filterChain->hotSpotAt(charLine, charColumn); if ((spot != nullptr) && spot->type() == Filter::HotSpot::Link) { QObject action; action.setObjectName(QStringLiteral("open-action")); spot->activate(&action); } } } } else if (ev->button() == Qt::MidButton) { processMidButtonClick(ev); } else if (ev->button() == Qt::RightButton) { if (!_usesMouseTracking || ((ev->modifiers() & Qt::ShiftModifier) != 0u)) { emit configureRequest(ev->pos()); } else { if(!_readOnly) { emit mouseSignal(2, charColumn + 1, charLine + 1 + _scrollBar->value() - _scrollBar->maximum() , 0); } } } } QList TerminalDisplay::filterActions(const QPoint& position) { int charLine, charColumn; getCharacterPosition(position, charLine, charColumn, false); Filter::HotSpot* spot = _filterChain->hotSpotAt(charLine, charColumn); return spot != nullptr ? spot->actions() : QList(); } void TerminalDisplay::mouseMoveEvent(QMouseEvent* ev) { int charLine = 0; int charColumn = 0; getCharacterPosition(ev->pos(), charLine, charColumn, !_usesMouseTracking); processFilters(); // handle filters // change link hot-spot appearance on mouse-over Filter::HotSpot* spot = _filterChain->hotSpotAt(charLine, charColumn); if ((spot != nullptr) && spot->type() == Filter::HotSpot::Link) { QRegion previousHotspotArea = _mouseOverHotspotArea; _mouseOverHotspotArea = QRegion(); QRect r; if (spot->startLine() == spot->endLine()) { r.setCoords(spot->startColumn()*_fontWidth + _contentRect.left(), spot->startLine()*_fontHeight + _contentRect.top(), (spot->endColumn())*_fontWidth + _contentRect.left() - 1, (spot->endLine() + 1)*_fontHeight + _contentRect.top() - 1); _mouseOverHotspotArea |= r; } else { r.setCoords(spot->startColumn()*_fontWidth + _contentRect.left(), spot->startLine()*_fontHeight + _contentRect.top(), (_columns)*_fontWidth + _contentRect.left() - 1, (spot->startLine() + 1)*_fontHeight + _contentRect.top() - 1); _mouseOverHotspotArea |= r; for (int line = spot->startLine() + 1 ; line < spot->endLine() ; line++) { r.setCoords(0 * _fontWidth + _contentRect.left(), line * _fontHeight + _contentRect.top(), (_columns)*_fontWidth + _contentRect.left() - 1, (line + 1)*_fontHeight + _contentRect.top() - 1); _mouseOverHotspotArea |= r; } r.setCoords(0 * _fontWidth + _contentRect.left(), spot->endLine()*_fontHeight + _contentRect.top(), (spot->endColumn())*_fontWidth + _contentRect.left() - 1, (spot->endLine() + 1)*_fontHeight + _contentRect.top() - 1); _mouseOverHotspotArea |= r; } if ((_openLinksByDirectClick || ((ev->modifiers() & Qt::ControlModifier) != 0u)) && (cursor().shape() != Qt::PointingHandCursor)) { setCursor(Qt::PointingHandCursor); } update(_mouseOverHotspotArea | previousHotspotArea); } else if (!_mouseOverHotspotArea.isEmpty()) { if ((_openLinksByDirectClick || ((ev->modifiers() & Qt::ControlModifier) != 0u)) || (cursor().shape() == Qt::PointingHandCursor)) { setCursor(_usesMouseTracking ? Qt::ArrowCursor : Qt::IBeamCursor); } update(_mouseOverHotspotArea); // set hotspot area to an invalid rectangle _mouseOverHotspotArea = QRegion(); } // for auto-hiding the cursor, we need mouseTracking if (ev->buttons() == Qt::NoButton) { return; } // if the program running in the terminal is interested in Mouse Tracking // evnets then emit a mouse movement signal, unless the shift key is // being held down, which overrides this. if (_usesMouseTracking && !(ev->modifiers() & Qt::ShiftModifier)) { int button = 3; if ((ev->buttons() & Qt::LeftButton) != 0u) { button = 0; } if ((ev->buttons() & Qt::MidButton) != 0u) { button = 1; } if ((ev->buttons() & Qt::RightButton) != 0u) { button = 2; } emit mouseSignal(button, charColumn + 1, charLine + 1 + _scrollBar->value() - _scrollBar->maximum(), 1); return; } if (_dragInfo.state == diPending) { // we had a mouse down, but haven't confirmed a drag yet // if the mouse has moved sufficiently, we will confirm const int distance = QApplication::startDragDistance(); if (ev->x() > _dragInfo.start.x() + distance || ev->x() < _dragInfo.start.x() - distance || ev->y() > _dragInfo.start.y() + distance || ev->y() < _dragInfo.start.y() - distance) { // we've left the drag square, we can start a real drag operation now _screenWindow->clearSelection(); doDrag(); } return; } else if (_dragInfo.state == diDragging) { // this isn't technically needed because mouseMoveEvent is suppressed during // Qt drag operations, replaced by dragMoveEvent return; } if (_actSel == 0) { return; } // don't extend selection while pasting if ((ev->buttons() & Qt::MidButton) != 0u) { return; } extendSelection(ev->pos()); } void TerminalDisplay::leaveEvent(QEvent *) { // remove underline from an active link when cursor leaves the widget area if(!_mouseOverHotspotArea.isEmpty()) { update(_mouseOverHotspotArea); _mouseOverHotspotArea = QRegion(); } } void TerminalDisplay::extendSelection(const QPoint& position) { if (_screenWindow.isNull()) { return; } //if ( !contentsRect().contains(ev->pos()) ) return; const QPoint tL = contentsRect().topLeft(); const int tLx = tL.x(); const int tLy = tL.y(); const int scroll = _scrollBar->value(); // we're in the process of moving the mouse with the left button pressed // the mouse cursor will kept caught within the bounds of the text in // this widget. int linesBeyondWidget = 0; QRect textBounds(tLx + _contentRect.left(), tLy + _contentRect.top(), _usedColumns * _fontWidth - 1, _usedLines * _fontHeight - 1); QPoint pos = position; // Adjust position within text area bounds. const QPoint oldpos = pos; pos.setX(qBound(textBounds.left(), pos.x(), textBounds.right())); pos.setY(qBound(textBounds.top(), pos.y(), textBounds.bottom())); if (oldpos.y() > textBounds.bottom()) { linesBeyondWidget = (oldpos.y() - textBounds.bottom()) / _fontHeight; _scrollBar->setValue(_scrollBar->value() + linesBeyondWidget + 1); // scrollforward } if (oldpos.y() < textBounds.top()) { linesBeyondWidget = (textBounds.top() - oldpos.y()) / _fontHeight; _scrollBar->setValue(_scrollBar->value() - linesBeyondWidget - 1); // history } int charColumn = 0; int charLine = 0; - getCharacterPosition(pos, charLine, charColumn, !_wordSelectionMode && !_lineSelectionMode); + getCharacterPosition(pos, charLine, charColumn, true); QPoint here = QPoint(charColumn, charLine); - here.rx() = qBound(0, here.x(), _columns - 1); - here.ry() = qBound(0, here.y(), _lines - 1); QPoint ohere; QPoint _iPntSelCorr = _iPntSel; _iPntSelCorr.ry() -= _scrollBar->value(); - _iPntSelCorr.rx() = qBound(0, _iPntSelCorr.x(), _columns - 1); - _iPntSelCorr.ry() = qBound(0, _iPntSelCorr.y(), _lines - 1); QPoint _pntSelCorr = _pntSel; _pntSelCorr.ry() -= _scrollBar->value(); - _pntSelCorr.rx() = qBound(0, _pntSelCorr.x(), _columns - 1); - _pntSelCorr.ry() = qBound(0, _pntSelCorr.y(), _lines - 1); bool swapping = false; if (_wordSelectionMode) { // Extend to word boundaries const bool left_not_right = (here.y() < _iPntSelCorr.y() || (here.y() == _iPntSelCorr.y() && here.x() < _iPntSelCorr.x())); const bool old_left_not_right = (_pntSelCorr.y() < _iPntSelCorr.y() || (_pntSelCorr.y() == _iPntSelCorr.y() && _pntSelCorr.x() < _iPntSelCorr.x())); swapping = left_not_right != old_left_not_right; // Find left (left_not_right ? from here : from start of word) QPoint left = left_not_right ? here : _iPntSelCorr; // Find left (left_not_right ? from end of word : from here) QPoint right = left_not_right ? _iPntSelCorr : here; left = findWordStart(left); right = findWordEnd(right); // Pick which is start (ohere) and which is extension (here) if (left_not_right) { here = left; ohere = right; } else { here = right; ohere = left; } ohere.rx()++; } if (_lineSelectionMode) { // Extend to complete line const bool above_not_below = (here.y() < _iPntSelCorr.y()); if (above_not_below) { ohere = findLineEnd(_iPntSelCorr); here = findLineStart(here); } else { ohere = findLineStart(_iPntSelCorr); here = findLineEnd(here); } swapping = !(_tripleSelBegin == ohere); _tripleSelBegin = ohere; ohere.rx()++; } int offset = 0; if (!_wordSelectionMode && !_lineSelectionMode) { QChar selClass; const bool left_not_right = (here.y() < _iPntSelCorr.y() || (here.y() == _iPntSelCorr.y() && here.x() < _iPntSelCorr.x())); const bool old_left_not_right = (_pntSelCorr.y() < _iPntSelCorr.y() || (_pntSelCorr.y() == _iPntSelCorr.y() && _pntSelCorr.x() < _iPntSelCorr.x())); swapping = left_not_right != old_left_not_right; // Find left (left_not_right ? from here : from start) const QPoint left = left_not_right ? here : _iPntSelCorr; // Find left (left_not_right ? from start : from here) QPoint right = left_not_right ? _iPntSelCorr : here; if (right.x() > 0 && !_columnSelectionMode) { if (right.x() - 1 < _columns && right.y() < _lines) { selClass = charClass(_image[loc(right.x() - 1, right.y())]); } } // Pick which is start (ohere) and which is extension (here) if (left_not_right) { here = left; ohere = right; offset = 0; } else { here = right; ohere = left; offset = -1; } } if ((here == _pntSelCorr) && (scroll == _scrollBar->value())) { return; // not moved } if (here == ohere) { return; // It's not left, it's not right. } if (_actSel < 2 || swapping) { if (_columnSelectionMode && !_lineSelectionMode && !_wordSelectionMode) { _screenWindow->setSelectionStart(ohere.x() , ohere.y() , true); } else { _screenWindow->setSelectionStart(ohere.x() - 1 - offset , ohere.y() , false); } } _actSel = 2; // within selection _pntSel = here; _pntSel.ry() += _scrollBar->value(); if (_columnSelectionMode && !_lineSelectionMode && !_wordSelectionMode) { _screenWindow->setSelectionEnd(here.x() , here.y()); } else { _screenWindow->setSelectionEnd(here.x() + offset , here.y()); } } void TerminalDisplay::mouseReleaseEvent(QMouseEvent* ev) { if (_screenWindow.isNull()) { return; } int charLine; int charColumn; getCharacterPosition(ev->pos(), charLine, charColumn, !_usesMouseTracking); if (ev->button() == Qt::LeftButton) { if (_dragInfo.state == diPending) { // We had a drag event pending but never confirmed. Kill selection _screenWindow->clearSelection(); } else { if (_actSel > 1) { copyToX11Selection(); } _actSel = 0; //FIXME: emits a release event even if the mouse is // outside the range. The procedure used in `mouseMoveEvent' // applies here, too. if (_usesMouseTracking && !(ev->modifiers() & Qt::ShiftModifier)) { emit mouseSignal(0, charColumn + 1, charLine + 1 + _scrollBar->value() - _scrollBar->maximum() , 2); } } _dragInfo.state = diNone; } if (_usesMouseTracking && (ev->button() == Qt::RightButton || ev->button() == Qt::MidButton) && !(ev->modifiers() & Qt::ShiftModifier)) { emit mouseSignal(ev->button() == Qt::MidButton ? 1 : 2, charColumn + 1, charLine + 1 + _scrollBar->value() - _scrollBar->maximum() , 2); } } void TerminalDisplay::getCharacterPosition(const QPoint& widgetPoint, int& line, int& column, bool edge) const { // the column value returned can be equal to _usedColumns (when edge == true), // which is the position just after the last character displayed in a line. // // this is required so that the user can select characters in the right-most // column (or left-most for right-to-left input) const int columnMax = edge ? _usedColumns : _usedColumns - 1; const int xOffset = edge ? _fontWidth / 2 : 0; column = qBound(0, (widgetPoint.x() + xOffset - contentsRect().left() - _contentRect.left()) / _fontWidth, columnMax); line = qBound(0, (widgetPoint.y() - contentsRect().top() - _contentRect.top()) / _fontHeight, _usedLines - 1); } void TerminalDisplay::updateLineProperties() { if (_screenWindow.isNull()) { return; } _lineProperties = _screenWindow->getLineProperties(); } void TerminalDisplay::processMidButtonClick(QMouseEvent* ev) { if (!_usesMouseTracking || ((ev->modifiers() & Qt::ShiftModifier) != 0u)) { const bool appendEnter = (ev->modifiers() & Qt::ControlModifier) != 0u; if (_middleClickPasteMode == Enum::PasteFromX11Selection) { pasteFromX11Selection(appendEnter); } else if (_middleClickPasteMode == Enum::PasteFromClipboard) { pasteFromClipboard(appendEnter); } else { Q_ASSERT(false); } } else { if(!_readOnly) { int charLine = 0; int charColumn = 0; getCharacterPosition(ev->pos(), charLine, charColumn, !_usesMouseTracking); emit mouseSignal(1, charColumn + 1, charLine + 1 + _scrollBar->value() - _scrollBar->maximum() , 0); } } } void TerminalDisplay::mouseDoubleClickEvent(QMouseEvent* ev) { // Yes, successive middle click can trigger this event if (ev->button() == Qt::MidButton) { processMidButtonClick(ev); return; } if (ev->button() != Qt::LeftButton) { return; } if (_screenWindow.isNull()) { return; } int charLine = 0; int charColumn = 0; getCharacterPosition(ev->pos(), charLine, charColumn, !_usesMouseTracking); QPoint pos(qMin(charColumn, _columns - 1), qMin(charLine, _lines - 1)); // pass on double click as two clicks. if (_usesMouseTracking && !(ev->modifiers() & Qt::ShiftModifier)) { if(!_readOnly) { // Send just _ONE_ click event, since the first click of the double click // was already sent by the click handler emit mouseSignal(0, charColumn + 1, charLine + 1 + _scrollBar->value() - _scrollBar->maximum(), 0); // left button } return; } _screenWindow->clearSelection(); _iPntSel = pos; _iPntSel.ry() += _scrollBar->value(); _wordSelectionMode = true; _actSel = 2; // within selection // find word boundaries... { // find the start of the word const QPoint bgnSel = findWordStart(pos); const QPoint endSel = findWordEnd(pos); _actSel = 2; // within selection _screenWindow->setSelectionStart(bgnSel.x() , bgnSel.y() , false); _screenWindow->setSelectionEnd(endSel.x() , endSel.y()); copyToX11Selection(); } _possibleTripleClick = true; QTimer::singleShot(QApplication::doubleClickInterval(), this, [this]() { _possibleTripleClick = false; }); } void TerminalDisplay::wheelEvent(QWheelEvent* ev) { // Only vertical scrolling is supported if (ev->orientation() != Qt::Vertical) { return; } const int modifiers = ev->modifiers(); // ctrl+ for zooming, like in konqueror and firefox if (((modifiers & Qt::ControlModifier) != 0u) && mouseWheelZoom()) { _scrollWheelState.addWheelEvent(ev); int steps = _scrollWheelState.consumeLegacySteps(ScrollState::DEFAULT_ANGLE_SCROLL_LINE); for (;steps > 0; --steps) { // wheel-up for increasing font size increaseFontSize(); } for (;steps < 0; ++steps) { // wheel-down for decreasing font size decreaseFontSize(); } } else if (!_usesMouseTracking && (_scrollBar->maximum() > 0)) { // If the program running in the terminal is not interested in Mouse // Tracking events, send the event to the scrollbar if the slider // has room to move _scrollWheelState.addWheelEvent(ev); _scrollBar->event(ev); Q_ASSERT(_sessionController != nullptr); _sessionController->setSearchStartToWindowCurrentLine(); _scrollWheelState.clearAll(); } else if (!_readOnly) { _scrollWheelState.addWheelEvent(ev); Q_ASSERT(!_sessionController->session().isNull()); if(!_usesMouseTracking && !_sessionController->session()->isPrimaryScreen() && _alternateScrolling) { // Send simulated up / down key presses to the terminal program // for the benefit of programs such as 'less' (which use the alternate screen) // assume that each Up / Down key event will cause the terminal application // to scroll by one line. // // to get a reasonable scrolling speed, scroll by one line for every 5 degrees // of mouse wheel rotation. Mouse wheels typically move in steps of 15 degrees, // giving a scroll of 3 lines const int lines = _scrollWheelState.consumeSteps(static_cast(_fontHeight * qApp->devicePixelRatio()), ScrollState::degreesToAngle(5)); const int keyCode = lines > 0 ? Qt::Key_Up : Qt::Key_Down; QKeyEvent keyEvent(QEvent::KeyPress, keyCode, Qt::NoModifier); for (int i = 0; i < abs(lines); i++) { _screenWindow->screen()->setCurrentTerminalDisplay(this); emit keyPressedSignal(&keyEvent); } } else if (_usesMouseTracking) { // terminal program wants notification of mouse activity int charLine; int charColumn; getCharacterPosition(ev->pos() , charLine , charColumn, !_usesMouseTracking); const int steps = _scrollWheelState.consumeLegacySteps(ScrollState::DEFAULT_ANGLE_SCROLL_LINE); const int button = (steps > 0) ? 4 : 5; for (int i = 0; i < abs(steps); ++i) { emit mouseSignal(button, charColumn + 1, charLine + 1 + _scrollBar->value() - _scrollBar->maximum() , 0); } } } } void TerminalDisplay::viewScrolledByUser() { Q_ASSERT(_sessionController != nullptr); _sessionController->setSearchStartToWindowCurrentLine(); } /* Moving left/up from the line containing pnt, return the starting offset point which the given line is continuously wrapped (top left corner = 0,0; previous line not visible = 0,-1). */ QPoint TerminalDisplay::findLineStart(const QPoint &pnt) { const int visibleScreenLines = _lineProperties.size(); const int topVisibleLine = _screenWindow->currentLine(); Screen *screen = _screenWindow->screen(); int line = pnt.y(); int lineInHistory= line + topVisibleLine; QVector lineProperties = _lineProperties; while (lineInHistory > 0) { for (; line > 0; line--, lineInHistory--) { // Does previous line wrap around? if ((lineProperties[line - 1] & LINE_WRAPPED) == 0) { return {0, lineInHistory - topVisibleLine}; } } if (lineInHistory < 1) { break; } // _lineProperties is only for the visible screen, so grab new data int newRegionStart = qMax(0, lineInHistory - visibleScreenLines); lineProperties = screen->getLineProperties(newRegionStart, lineInHistory - 1); line = lineInHistory - newRegionStart; } return {0, lineInHistory - topVisibleLine}; } /* Moving right/down from the line containing pnt, return the ending offset point which the given line is continuously wrapped. */ QPoint TerminalDisplay::findLineEnd(const QPoint &pnt) { const int visibleScreenLines = _lineProperties.size(); const int topVisibleLine = _screenWindow->currentLine(); const int maxY = _screenWindow->lineCount() - 1; Screen *screen = _screenWindow->screen(); int line = pnt.y(); int lineInHistory= line + topVisibleLine; QVector lineProperties = _lineProperties; while (lineInHistory < maxY) { for (; line < lineProperties.count() && lineInHistory < maxY; line++, lineInHistory++) { // Does current line wrap around? if ((lineProperties[line] & LINE_WRAPPED) == 0) { return {_columns - 1, lineInHistory - topVisibleLine}; } } line = 0; lineProperties = screen->getLineProperties(lineInHistory, qMin(lineInHistory + visibleScreenLines, maxY)); } return {_columns - 1, lineInHistory - topVisibleLine}; } QPoint TerminalDisplay::findWordStart(const QPoint &pnt) { const int regSize = qMax(_screenWindow->windowLines(), 10); const int firstVisibleLine = _screenWindow->currentLine(); Screen *screen = _screenWindow->screen(); Character *image = _image; Character *tmp_image = nullptr; int imgLine = pnt.y(); int x = pnt.x(); int y = imgLine + firstVisibleLine; int imgLoc = loc(x, imgLine); QVector lineProperties = _lineProperties; const QChar selClass = charClass(image[imgLoc]); const int imageSize = regSize * _columns; while (true) { for (;;imgLoc--, x--) { if (imgLoc < 1) { // no more chars in this region break; } if (x > 0) { // has previous char on this line if (charClass(image[imgLoc - 1]) == selClass) { continue; } goto out; } else if (imgLine > 0) { // not the first line in the session if ((lineProperties[imgLine - 1] & LINE_WRAPPED) != 0) { // have continuation on prev line if (charClass(image[imgLoc - 1]) == selClass) { x = _columns; imgLine--; y--; continue; } } goto out; } else if (y > 0) { // want more data, but need to fetch new region break; } else { goto out; } } if (y <= 0) { // No more data goto out; } int newRegStart = qMax(0, y - regSize + 1); lineProperties = screen->getLineProperties(newRegStart, y - 1); imgLine = y - newRegStart; delete[] tmp_image; tmp_image = new Character[imageSize]; image = tmp_image; screen->getImage(tmp_image, imageSize, newRegStart, y - 1); imgLoc = loc(x, imgLine); if (imgLoc < 1) { // Reached the start of the session break; } } out: delete[] tmp_image; return {x, y - firstVisibleLine}; } QPoint TerminalDisplay::findWordEnd(const QPoint &pnt) { const int regSize = qMax(_screenWindow->windowLines(), 10); const int curLine = _screenWindow->currentLine(); int i = pnt.y(); int x = pnt.x(); int y = i + curLine; int j = loc(x, i); QVector lineProperties = _lineProperties; Screen *screen = _screenWindow->screen(); Character *image = _image; Character *tmp_image = nullptr; const QChar selClass = charClass(image[j]); const int imageSize = regSize * _columns; const int maxY = _screenWindow->lineCount() - 1; const int maxX = _columns - 1; while (true) { const int lineCount = lineProperties.count(); for (;;j++, x++) { if (x < maxX) { if (charClass(image[j + 1]) == selClass && // A colon right before whitespace is never part of a word ! (image[j + 1].character == ':' && charClass(image[j + 2]) == QLatin1Char(' '))) { continue; } goto out; } else if (i < lineCount - 1) { if (((lineProperties[i] & LINE_WRAPPED) != 0) && charClass(image[j + 1]) == selClass && // A colon right before whitespace is never part of a word ! (image[j + 1].character == ':' && charClass(image[j + 2]) == QLatin1Char(' '))) { x = -1; i++; y++; continue; } goto out; } else if (y < maxY) { if (i < lineCount && ((lineProperties[i] & LINE_WRAPPED) == 0)) { goto out; } break; } else { goto out; } } int newRegEnd = qMin(y + regSize - 1, maxY); lineProperties = screen->getLineProperties(y, newRegEnd); i = 0; if (tmp_image == nullptr) { tmp_image = new Character[imageSize]; image = tmp_image; } screen->getImage(tmp_image, imageSize, y, newRegEnd); x--; j = loc(x, i); } out: y -= curLine; // In word selection mode don't select @ (64) if at end of word. if (((image[j].rendition & RE_EXTENDED_CHAR) == 0) && (QChar(image[j].character) == QLatin1Char('@')) && (y > pnt.y() || x > pnt.x())) { if (x > 0) { x--; } else { y--; } } delete[] tmp_image; return {x, y}; } Screen::DecodingOptions TerminalDisplay::currentDecodingOptions() { Screen::DecodingOptions decodingOptions; if (_preserveLineBreaks) { decodingOptions |= Screen::PreserveLineBreaks; } if (_trimLeadingSpaces) { decodingOptions |= Screen::TrimLeadingWhitespace; } if (_trimTrailingSpaces) { decodingOptions |= Screen::TrimTrailingWhitespace; } return decodingOptions; } void TerminalDisplay::mouseTripleClickEvent(QMouseEvent* ev) { if (_screenWindow.isNull()) { return; } int charLine; int charColumn; getCharacterPosition(ev->pos(), charLine, charColumn, true); selectLine(QPoint(charColumn, charLine), _tripleClickMode == Enum::SelectWholeLine); } void TerminalDisplay::selectLine(QPoint pos, bool entireLine) { _iPntSel = pos; _screenWindow->clearSelection(); _lineSelectionMode = true; _wordSelectionMode = false; _actSel = 2; // within selection if (!entireLine) { // Select from cursor to end of line _tripleSelBegin = findWordStart(_iPntSel); _screenWindow->setSelectionStart(_tripleSelBegin.x(), _tripleSelBegin.y() , false); } else { _tripleSelBegin = findLineStart(_iPntSel); _screenWindow->setSelectionStart(0 , _tripleSelBegin.y() , false); } _iPntSel = findLineEnd(_iPntSel); _screenWindow->setSelectionEnd(_iPntSel.x() , _iPntSel.y()); copyToX11Selection(); _iPntSel.ry() += _scrollBar->value(); } void TerminalDisplay::selectCurrentLine() { if (_screenWindow.isNull()) { return; } selectLine(cursorPosition(), true); } void TerminalDisplay::selectAll() { if (_screenWindow.isNull()) { return; } _preserveLineBreaks = true; _screenWindow->setSelectionByLineRange(0, _screenWindow->lineCount()); copyToX11Selection(); } bool TerminalDisplay::focusNextPrevChild(bool next) { // for 'Tab', always disable focus switching among widgets // for 'Shift+Tab', leave the decision to higher level if (next) { return false; } else { return QWidget::focusNextPrevChild(next); } } QChar TerminalDisplay::charClass(const Character& ch) const { if ((ch.rendition & RE_EXTENDED_CHAR) != 0) { ushort extendedCharLength = 0; const uint* chars = ExtendedCharTable::instance.lookupExtendedChar(ch.character, extendedCharLength); if ((chars != nullptr) && extendedCharLength > 0) { const QString s = QString::fromUcs4(chars, extendedCharLength); if (_wordCharacters.contains(s, Qt::CaseInsensitive)) { return QLatin1Char('a'); } bool letterOrNumber = false; for (int i = 0; !letterOrNumber && i < s.size(); ++i) { letterOrNumber = s.at(i).isLetterOrNumber(); } return letterOrNumber ? QLatin1Char('a') : s.at(0); } return 0; } else { const QChar qch(ch.character); if (qch.isSpace()) { return QLatin1Char(' '); } if (qch.isLetterOrNumber() || _wordCharacters.contains(qch, Qt::CaseInsensitive)) { return QLatin1Char('a'); } return qch; } } void TerminalDisplay::setWordCharacters(const QString& wc) { _wordCharacters = wc; } void TerminalDisplay::setUsesMouseTracking(bool on) { _usesMouseTracking = on; setCursor(_usesMouseTracking ? Qt::ArrowCursor : Qt::IBeamCursor); } bool TerminalDisplay::usesMouseTracking() const { return _usesMouseTracking; } void TerminalDisplay::setAlternateScrolling(bool enable) { _alternateScrolling = enable; } bool TerminalDisplay::alternateScrolling() const { return _alternateScrolling; } void TerminalDisplay::setBracketedPasteMode(bool on) { _bracketedPasteMode = on; } bool TerminalDisplay::bracketedPasteMode() const { return _bracketedPasteMode; } /* ------------------------------------------------------------------------- */ /* */ /* Clipboard */ /* */ /* ------------------------------------------------------------------------- */ void TerminalDisplay::doPaste(QString text, bool appendReturn) { if (_screenWindow.isNull()) { return; } if (_readOnly) { return; } if (appendReturn) { text.append(QLatin1String("\r")); } if (text.length() > 8000) { if (KMessageBox::warningContinueCancel(window(), i18np("Are you sure you want to paste %1 character?", "Are you sure you want to paste %1 characters?", text.length()), i18n("Confirm Paste"), KStandardGuiItem::cont(), KStandardGuiItem::cancel(), QStringLiteral("ShowPasteHugeTextWarning")) == KMessageBox::Cancel) { return; } } QStringList unsafeCharacters; for (const QChar &c : text) { if (!c.isPrint() && c != QLatin1Char('\t') && c != QLatin1Char('\n')) { QString description; switch(c.unicode()) { case '\x03': description = i18n("^C Interrupt: May abort the current process"); break; case '\x04': description = i18n("^D End of transmission: May exit the current process"); break; case '\x07': description = i18n("^G Bell: Will try to emit an audible warning"); break; case '\x08': description = i18n("^H Backspace"); break; case '\x13': description = i18n("^S Scroll lock: Locks terminal output"); break; case '\x1a': description = i18n("^Z Suspend: Stops current process"); break; case '\x1b': description = i18n("ESC: Used for special commands to the current process"); break; default: description = ki18n("Other unprintable character (\\x%1)").subs(c.unicode(), 0, 16).toString(); break; } unsafeCharacters.append(description); } } unsafeCharacters.removeDuplicates(); if (!unsafeCharacters.isEmpty()) { int result = KMessageBox::warningYesNoCancelList(window(), i18n("The text you're trying to paste contains hidden unprintable characters, " "do you want to filter them out?"), unsafeCharacters, i18nc("@title", "Filter"), KGuiItem(i18nc("@action:button", "&Remove unprintable"), QStringLiteral("filter-symbolic")), KGuiItem(i18nc("@action:button", "Confirm &paste"), QStringLiteral("edit-paste")), KGuiItem(i18nc("@action:button", "&Cancel paste"), QStringLiteral("dialog-cancel")), QStringLiteral("ShowPasteUnprintableWarning") ); switch(result){ case KMessageBox::Cancel: return; case KMessageBox::Yes: { QString sanitized; for (const QChar &c : text) { if (c.isPrint() || c == QLatin1Char('\t') || c == QLatin1Char('\n')) { sanitized.append(c); } } text = sanitized; } case KMessageBox::No: break; default: break; } } if (!text.isEmpty()) { text.replace(QLatin1Char('\n'), QLatin1Char('\r')); if (bracketedPasteMode()) { text.remove(QLatin1String("\033")); text.prepend(QLatin1String("\033[200~")); text.append(QLatin1String("\033[201~")); } // perform paste by simulating keypress events QKeyEvent e(QEvent::KeyPress, 0, Qt::NoModifier, text); emit keyPressedSignal(&e); } } void TerminalDisplay::setAutoCopySelectedText(bool enabled) { _autoCopySelectedText = enabled; } void TerminalDisplay::setMiddleClickPasteMode(Enum::MiddleClickPasteModeEnum mode) { _middleClickPasteMode = mode; } void TerminalDisplay::setCopyTextAsHTML(bool enabled) { _copyTextAsHTML = enabled; } void TerminalDisplay::copyToX11Selection() { if (_screenWindow.isNull()) { return; } const QString &text = _screenWindow->selectedText(currentDecodingOptions()); if (text.isEmpty()) { return; } auto mimeData = new QMimeData; mimeData->setText(text); if (_copyTextAsHTML) { mimeData->setHtml(_screenWindow->selectedText(currentDecodingOptions() | Screen::ConvertToHtml)); } if (QApplication::clipboard()->supportsSelection()) { QApplication::clipboard()->setMimeData(mimeData, QClipboard::Selection); } if (_autoCopySelectedText) { QApplication::clipboard()->setMimeData(mimeData, QClipboard::Clipboard); } } void TerminalDisplay::copyToClipboard() { if (_screenWindow.isNull()) { return; } const QString &text = _screenWindow->selectedText(currentDecodingOptions()); if (text.isEmpty()) { return; } auto mimeData = new QMimeData; mimeData->setText(text); if (_copyTextAsHTML) { mimeData->setHtml(_screenWindow->selectedText(currentDecodingOptions() | Screen::ConvertToHtml)); } QApplication::clipboard()->setMimeData(mimeData, QClipboard::Clipboard); } void TerminalDisplay::pasteFromClipboard(bool appendEnter) { QString text = QApplication::clipboard()->text(QClipboard::Clipboard); doPaste(text, appendEnter); } void TerminalDisplay::pasteFromX11Selection(bool appendEnter) { if (QApplication::clipboard()->supportsSelection()) { QString text = QApplication::clipboard()->text(QClipboard::Selection); doPaste(text, appendEnter); } } /* ------------------------------------------------------------------------- */ /* */ /* Input Method */ /* */ /* ------------------------------------------------------------------------- */ void TerminalDisplay::inputMethodEvent(QInputMethodEvent* event) { if (!event->commitString().isEmpty()) { QKeyEvent keyEvent(QEvent::KeyPress, 0, Qt::NoModifier, event->commitString()); emit keyPressedSignal(&keyEvent); } if (!_readOnly && isCursorOnDisplay()) { _inputMethodData.preeditString = event->preeditString(); update(preeditRect() | _inputMethodData.previousPreeditRect); } event->accept(); } QVariant TerminalDisplay::inputMethodQuery(Qt::InputMethodQuery query) const { const QPoint cursorPos = cursorPosition(); switch (query) { case Qt::ImMicroFocus: return imageToWidget(QRect(cursorPos.x(), cursorPos.y(), 1, 1)); case Qt::ImFont: return font(); case Qt::ImCursorPosition: // return the cursor position within the current line return cursorPos.x(); case Qt::ImSurroundingText: { // return the text from the current line QString lineText; QTextStream stream(&lineText); PlainTextDecoder decoder; decoder.begin(&stream); if (isCursorOnDisplay()) { decoder.decodeLine(&_image[loc(0, cursorPos.y())], _usedColumns, LINE_DEFAULT); } decoder.end(); return lineText; } case Qt::ImCurrentSelection: return QString(); default: break; } return QVariant(); } QRect TerminalDisplay::preeditRect() const { const int preeditLength = Character::stringWidth(_inputMethodData.preeditString); if (preeditLength == 0) { return {}; } const QRect stringRect(_contentRect.left() + _fontWidth * cursorPosition().x(), _contentRect.top() + _fontHeight * cursorPosition().y(), _fontWidth * preeditLength, _fontHeight); return stringRect.intersected(_contentRect); } void TerminalDisplay::drawInputMethodPreeditString(QPainter& painter , const QRect& rect) { if (_inputMethodData.preeditString.isEmpty() || !isCursorOnDisplay()) { return; } const QPoint cursorPos = cursorPosition(); bool invertColors = false; const QColor background = _colorTable[DEFAULT_BACK_COLOR]; const QColor foreground = _colorTable[DEFAULT_FORE_COLOR]; const Character* style = &_image[loc(cursorPos.x(), cursorPos.y())]; drawBackground(painter, rect, background, true); drawCursor(painter, rect, foreground, background, invertColors); drawCharacters(painter, rect, _inputMethodData.preeditString, style, invertColors); _inputMethodData.previousPreeditRect = rect; } /* ------------------------------------------------------------------------- */ /* */ /* Keyboard */ /* */ /* ------------------------------------------------------------------------- */ void TerminalDisplay::setFlowControlWarningEnabled(bool enable) { _flowControlWarningEnabled = enable; // if the dialog is currently visible and the flow control warning has // been disabled then hide the dialog if (!enable) { outputSuspended(false); } } void TerminalDisplay::outputSuspended(bool suspended) { //create the label when this function is first called if (_outputSuspendedMessageWidget == nullptr) { //This label includes a link to an English language website //describing the 'flow control' (Xon/Xoff) feature found in almost //all terminal emulators. //If there isn't a suitable article available in the target language the link //can simply be removed. _outputSuspendedMessageWidget = createMessageWidget(i18n("Output has been " "suspended" " by pressing Ctrl+S." " Press Ctrl+Q to resume.")); connect(_outputSuspendedMessageWidget, &KMessageWidget::linkActivated, this, [](const QString &url) { QDesktopServices::openUrl(QUrl(url)); }); _outputSuspendedMessageWidget->setMessageType(KMessageWidget::Warning); } suspended ? _outputSuspendedMessageWidget->animatedShow() : _outputSuspendedMessageWidget->animatedHide(); } void TerminalDisplay::dismissOutputSuspendedMessage() { outputSuspended(false); } KMessageWidget* TerminalDisplay::createMessageWidget(const QString &text) { auto widget = new KMessageWidget(text); widget->setWordWrap(true); widget->setFocusProxy(this); widget->setCursor(Qt::ArrowCursor); _verticalLayout->insertWidget(0, widget); return widget; } void TerminalDisplay::updateReadOnlyState(bool readonly) { if (_readOnly == readonly) { return; } if (readonly) { // Lazy create the readonly messagewidget if (_readOnlyMessageWidget == nullptr) { _readOnlyMessageWidget = createMessageWidget(i18n("This terminal is read-only.")); _readOnlyMessageWidget->setIcon(QIcon::fromTheme(QStringLiteral("object-locked"))); } } if (_readOnlyMessageWidget != nullptr) { readonly ? _readOnlyMessageWidget->animatedShow() : _readOnlyMessageWidget->animatedHide(); } _readOnly = readonly; } void TerminalDisplay::scrollScreenWindow(enum ScreenWindow::RelativeScrollMode mode, int amount) { _screenWindow->scrollBy(mode, amount, _scrollFullPage); _screenWindow->setTrackOutput(_screenWindow->atEndOfOutput()); updateLineProperties(); updateImage(); viewScrolledByUser(); } void TerminalDisplay::keyPressEvent(QKeyEvent* event) { if ((_urlHintsModifiers != 0u) && event->modifiers() == _urlHintsModifiers) { int nHotSpots = _filterChain->hotSpots().count(); int hintSelected = event->key() - 0x31; if (hintSelected >= 0 && hintSelected < 10 && hintSelected < nHotSpots) { if (_reverseUrlHints) { hintSelected = nHotSpots - hintSelected - 1; } _filterChain->hotSpots().at(hintSelected)->activate(); _showUrlHint = false; update(); return; } if (!_showUrlHint) { processFilters(); _showUrlHint = true; update(); } } _screenWindow->screen()->setCurrentTerminalDisplay(this); if (!_readOnly) { _actSel = 0; // Key stroke implies a screen update, so TerminalDisplay won't // know where the current selection is. if (_allowBlinkingCursor) { _blinkCursorTimer->start(); if (_cursorBlinking) { // if cursor is blinking(hidden), blink it again to show it blinkCursorEvent(); } Q_ASSERT(!_cursorBlinking); } } if (_searchBar->isVisible() && event->key() == Qt::Key_Escape) { _sessionController->searchClosed(); } emit keyPressedSignal(event); #ifndef QT_NO_ACCESSIBILITY if (!_readOnly) { QAccessibleTextCursorEvent textCursorEvent(this, _usedColumns * screenWindow()->screen()->getCursorY() + screenWindow()->screen()->getCursorX()); QAccessible::updateAccessibility(&textCursorEvent); } #endif event->accept(); } void TerminalDisplay::keyReleaseEvent(QKeyEvent *event) { if (_showUrlHint) { _showUrlHint = false; update(); } if (_readOnly) { event->accept(); return; } QWidget::keyReleaseEvent(event); } bool TerminalDisplay::handleShortcutOverrideEvent(QKeyEvent* keyEvent) { const int modifiers = keyEvent->modifiers(); // When a possible shortcut combination is pressed, // emit the overrideShortcutCheck() signal to allow the host // to decide whether the terminal should override it or not. if (modifiers != Qt::NoModifier) { int modifierCount = 0; unsigned int currentModifier = Qt::ShiftModifier; while (currentModifier <= Qt::KeypadModifier) { if ((modifiers & currentModifier) != 0u) { modifierCount++; } currentModifier <<= 1; } if (modifierCount < 2) { bool override = false; emit overrideShortcutCheck(keyEvent, override); if (override) { keyEvent->accept(); return true; } } } // Override any of the following shortcuts because // they are needed by the terminal int keyCode = keyEvent->key() | modifiers; switch (keyCode) { // list is taken from the QLineEdit::event() code case Qt::Key_Tab: case Qt::Key_Delete: case Qt::Key_Home: case Qt::Key_End: case Qt::Key_Backspace: case Qt::Key_Left: case Qt::Key_Right: case Qt::Key_Slash: case Qt::Key_Period: case Qt::Key_Space: keyEvent->accept(); return true; } return false; } bool TerminalDisplay::event(QEvent* event) { bool eventHandled = false; switch (event->type()) { case QEvent::ShortcutOverride: eventHandled = handleShortcutOverrideEvent(static_cast(event)); break; case QEvent::PaletteChange: case QEvent::ApplicationPaletteChange: onColorsChanged(); break; case QEvent::FocusOut: case QEvent::FocusIn: if(_screenWindow) { // force a redraw on focusIn, fixes the // black screen bug when the view is focused // but doesn't redraws. _screenWindow->notifyOutputChanged(); } update(); break; default: break; } return eventHandled ? true : QWidget::event(event); } void TerminalDisplay::contextMenuEvent(QContextMenuEvent* event) { // the logic for the mouse case is within MousePressEvent() if (event->reason() != QContextMenuEvent::Mouse) { emit configureRequest(mapFromGlobal(QCursor::pos())); } } /* --------------------------------------------------------------------- */ /* */ /* Bell */ /* */ /* --------------------------------------------------------------------- */ void TerminalDisplay::setBellMode(int mode) { _bellMode = mode; } int TerminalDisplay::bellMode() const { return _bellMode; } void TerminalDisplay::bell(const QString& message) { if (_bellMasked) { return; } switch (_bellMode) { case Enum::SystemBeepBell: KNotification::beep(); break; case Enum::NotifyBell: // STABLE API: // Please note that these event names, "BellVisible" and "BellInvisible", // should not change and should be kept stable, because other applications // that use this code via KPart rely on these names for notifications. KNotification::event(hasFocus() ? QStringLiteral("BellVisible") : QStringLiteral("BellInvisible"), message, QPixmap(), this); break; case Enum::VisualBell: visualBell(); break; default: break; } // limit the rate at which bells can occur. // ...mainly for sound effects where rapid bells in sequence // produce a horrible noise. _bellMasked = true; QTimer::singleShot(500, this, [this]() { _bellMasked = false; }); } void TerminalDisplay::visualBell() { swapFGBGColors(); QTimer::singleShot(200, this, &Konsole::TerminalDisplay::swapFGBGColors); } void TerminalDisplay::swapFGBGColors() { // swap the default foreground & background color ColorEntry color = _colorTable[DEFAULT_BACK_COLOR]; _colorTable[DEFAULT_BACK_COLOR] = _colorTable[DEFAULT_FORE_COLOR]; _colorTable[DEFAULT_FORE_COLOR] = color; onColorsChanged(); } /* --------------------------------------------------------------------- */ /* */ /* Drag & Drop */ /* */ /* --------------------------------------------------------------------- */ void TerminalDisplay::dragEnterEvent(QDragEnterEvent* event) { // text/plain alone is enough for KDE-apps // text/uri-list is for supporting some non-KDE apps, such as thunar // and pcmanfm // That also applies in dropEvent() const auto mimeData = event->mimeData(); if ((!_readOnly) && (mimeData != nullptr) && (mimeData->hasFormat(QStringLiteral("text/plain")) || mimeData->hasFormat(QStringLiteral("text/uri-list")))) { event->acceptProposedAction(); } } void TerminalDisplay::dropEvent(QDropEvent* event) { if (_readOnly) { event->accept(); return; } const auto mimeData = event->mimeData(); if (mimeData == nullptr) { return; } auto urls = mimeData->urls(); QString dropText; if (!urls.isEmpty()) { for (int i = 0 ; i < urls.count() ; i++) { KIO::StatJob* job = KIO::mostLocalUrl(urls[i], KIO::HideProgressInfo); bool ok = job->exec(); if (!ok) { continue; } QUrl url = job->mostLocalUrl(); QString urlText; if (url.isLocalFile()) { urlText = url.path(); } else { urlText = url.url(); } // in future it may be useful to be able to insert file names with drag-and-drop // without quoting them (this only affects paths with spaces in) urlText = KShell::quoteArg(urlText); dropText += urlText; // Each filename(including the last) should be followed by one space. dropText += QLatin1Char(' '); } // If our target is local we will open a popup - otherwise the fallback kicks // in and the URLs will simply be pasted as text. if (!_dropUrlsAsText && (_sessionController != nullptr) && _sessionController->url().isLocalFile()) { // A standard popup with Copy, Move and Link as options - // plus an additional Paste option. QAction* pasteAction = new QAction(i18n("&Paste Location"), this); pasteAction->setData(dropText); connect(pasteAction, &QAction::triggered, this, &TerminalDisplay::dropMenuPasteActionTriggered); QList additionalActions; additionalActions.append(pasteAction); if (urls.count() == 1) { KIO::StatJob* job = KIO::mostLocalUrl(urls[0], KIO::HideProgressInfo); bool ok = job->exec(); if (ok) { const QUrl url = job->mostLocalUrl(); if (url.isLocalFile()) { const QFileInfo fileInfo(url.path()); if (fileInfo.isDir()) { QAction* cdAction = new QAction(i18n("Change &Directory To"), this); dropText = QLatin1String(" cd ") + dropText + QLatin1Char('\n'); cdAction->setData(dropText); connect(cdAction, &QAction::triggered, this, &TerminalDisplay::dropMenuCdActionTriggered); additionalActions.append(cdAction); } } } } QUrl target = QUrl::fromLocalFile(_sessionController->currentDir()); KIO::DropJob* job = KIO::drop(event, target); KJobWidgets::setWindow(job, this); job->setApplicationActions(additionalActions); return; } } else { dropText = mimeData->text(); } if (mimeData->hasFormat(QStringLiteral("text/plain")) || mimeData->hasFormat(QStringLiteral("text/uri-list"))) { emit sendStringToEmu(dropText.toLocal8Bit()); } } void TerminalDisplay::dropMenuPasteActionTriggered() { if (sender() != nullptr) { const auto* action = qobject_cast(sender()); if (action != nullptr) { emit sendStringToEmu(action->data().toString().toLocal8Bit()); } } } void TerminalDisplay::dropMenuCdActionTriggered() { if (sender() != nullptr) { const auto* action = qobject_cast(sender()); if (action != nullptr) { emit sendStringToEmu(action->data().toString().toLocal8Bit()); } } } void TerminalDisplay::doDrag() { const QMimeData *clipboardMimeData = QApplication::clipboard()->mimeData(QClipboard::Selection); if (clipboardMimeData == nullptr) { return; } auto mimeData = new QMimeData(); _dragInfo.state = diDragging; _dragInfo.dragObject = new QDrag(this); mimeData->setText(clipboardMimeData->text()); mimeData->setHtml(clipboardMimeData->html()); _dragInfo.dragObject->setMimeData(mimeData); _dragInfo.dragObject->exec(Qt::CopyAction); } void TerminalDisplay::setSessionController(SessionController* controller) { _sessionController = controller; } SessionController* TerminalDisplay::sessionController() { return _sessionController; } IncrementalSearchBar *TerminalDisplay::searchBar() const { return _searchBar; } AutoScrollHandler::AutoScrollHandler(QWidget* parent) : QObject(parent) , _timerId(0) { parent->installEventFilter(this); } void AutoScrollHandler::timerEvent(QTimerEvent* event) { if (event->timerId() != _timerId) { return; } QMouseEvent mouseEvent(QEvent::MouseMove, widget()->mapFromGlobal(QCursor::pos()), Qt::NoButton, Qt::LeftButton, Qt::NoModifier); QApplication::sendEvent(widget(), &mouseEvent); } bool AutoScrollHandler::eventFilter(QObject* watched, QEvent* event) { Q_ASSERT(watched == parent()); Q_UNUSED(watched); switch (event->type()) { case QEvent::MouseMove: { auto* mouseEvent = static_cast(event); bool mouseInWidget = widget()->rect().contains(mouseEvent->pos()); if (mouseInWidget) { if (_timerId != 0) { killTimer(_timerId); } _timerId = 0; } else { if ((_timerId == 0) && ((mouseEvent->buttons() & Qt::LeftButton) != 0u)) { _timerId = startTimer(100); } } break; } case QEvent::MouseButtonRelease: { auto* mouseEvent = static_cast(event); if ((_timerId != 0) && ((mouseEvent->buttons() & ~Qt::LeftButton) != 0u)) { killTimer(_timerId); _timerId = 0; } break; } default: break; }; return false; }