{

Q_OBJECT

Q_DISABLE_COPY(TTextEdit)

TTextEdit(TConsole*, QWidget*, TBuffer* pB, Host* pH, bool isLowerPane);

void paintEvent(QPaintEvent*) override;

void contextMenuEvent(QContextMenuEvent* event) override;

void drawForeground(QPainter&, const QRect&);

void drawBackground(QPainter&, const QRect&, const QColor&) const;

uint getGraphemeBaseCharacter(const QString& str) const;

void drawLine(QPainter& painter, int lineNumber, int rowOfScreen) const;

int drawGrapheme(QPainter &painter, const QPoint &cursor, const QString &c, int column, TChar &style) const;

void drawCharacters(QPainter&, const QRect&, QString&, const QColor&, const TChar::AttributeFlags);

void showNewLines();

void forceUpdate();

void needUpdate(int, int);

void scrollTo(int);

void scrollUp(int lines);

void scrollDown(int lines);

void wheelEvent(QWheelEvent* e) override;

void resizeEvent(QResizeEvent* event) override;

void mousePressEvent(QMouseEvent*) override;

void mouseReleaseEvent(QMouseEvent*) override;

void mouseMoveEvent(QMouseEvent*) override;

void showEvent(QShowEvent* event) override;

void updateScreenView();

void highlightSelection();

void unHighlight();

void focusInEvent(QFocusEvent* event) override;

int imageTopLine();

int bufferScrollUp(int lines);

int bufferScrollDown(int lines);

void setConsoleBgColor(int r, int g, int b) { mBgColor = QColor(r, g, b); }

void searchSelectionOnline();

int getColumnCount();

int getRowCount();

QColor mBgColor;

// position of cursor, in characters, across the entire buffer

int mCursorY;

QFont mDisplayFont;

QColor mFgColor;

int mFontAscent;

int mFontDescent;

bool mIsCommandPopup;

// If true, this TTextEdit is to display the last lines in

// mpConsole.mpBuffer. This is always true for the lower main window panel

// but it is RESET when the upper one is scrolled upwards. The name appears

// to be related to the file monitoring feature in the *nix tail command.

// See, e.g.: https://en.wikipedia.org/wiki/Tail_(Unix)#File_monitoring

bool mIsTailMode;

QMap<QString, QString> mPopupCommands;

int mScrollVector;

QRegion mSelectedRegion;

bool mShowTimeStamps;

int mWrapAt;

int mWrapIndentCount {};

qreal mLetterSpacing;

public slots:

void slot_toggleTimeStamps(const bool);

void slot_copySelectionToClipboard();

void slot_selectAll();

void slot_scrollBarMoved(int);

void slot_popupMenu();

void slot_copySelectionToClipboardHTML();

void slot_searchSelectionOnline();

void slot_analyseSelection();

void slot_changeIsAmbigousWidthGlyphsToBeWide(bool);

private slots:

void slot_copySelectionToClipboardImage();

void initDefaultSettings();

QString getSelectedText(char newlineChar = '\n');

static QString htmlCenter(const QString&);

static QString convertWhitespaceToVisual(const QChar& first, const QChar& second = QChar::Null);

static QString byteToLuaCodeOrChar(const char*);

std::pair<bool, int> drawTextForClipboard(QPainter& p, QRect r, int lineOffset) const;

int convertMouseXToBufferX(const int mouseX, const int lineNumber, bool *isOverTimeStamp = nullptr) const;

int getGraphemeWidth(uint unicode) const;

void normaliseSelection();

void updateTextCursor(const QMouseEvent* event, int lineIndex, int tCharIndex);

void raiseMudletMousePressOrReleaseEvent(QMouseEvent*, const bool);

int mFontHeight;

int mFontWidth;

bool mForceUpdate;

// Each TConsole instance uses two instances of this class, one above the

// other but they need to behave differently in some ways; this flag is set

// or reset on creation and is used to adjust the behaviour depending on

// which one this instance is:

const bool mIsLowerPane;

// last line offset rendered

int mLastRenderBottom;

bool mMouseTracking;

bool mCtrlSelecting {};

int mCtrlDragStartY {};

QPoint mDragStart, mDragSelectionEnd;

int mOldScrollPos;

// top-left point of the selection

QPoint mPA;

// bottom-right point of the selection

QPoint mPB;

TBuffer* mpBuffer;

TConsole* mpConsole;

QPointer<Host> mpHost;

QScrollBar* mpScrollBar;

// screen height in characters

int mScreenHeight;

// currently viewed screen area

QPixmap mScreenMap;

int mScreenWidth;

QTime mLastClickTimer;

QPointer<QAction> mpContextMenuAnalyser;

bool mWideAmbigousWidthGlyphs;

std::chrono::high_resolution_clock::time_point mCopyImageStartTime;

// Set in constructor for run-time Qt versions less than 5.11 which only

// supports up to Unicode 8.0:

bool mUseOldUnicode8;

// How many "normal" width "characters" are each tab stop apart, whilst

// there is no current mechanism to adjust this, sensible values will

// probably be 1 (so that a tab is just treated as a space), 2, 4 and 8,

// in the past it was typically 8 and this is what we'll use at present:

int mTabStopwidth;

// How many normal width characters that are used for the time stamps; it

// would only be valid to change this by clearing the buffer first - so

// making this a const value for the moment:

const int mTimeStampWidth;