File indexing completed on 2024-04-21 05:42:31

 // clang-format off
 /*
  * KDiff3 - Text Diff And Merge Tool
  *
  * SPDX-FileCopyrightText: 2002-2011 Joachim Eibl, joachim.eibl at gmx.de
  * SPDX-FileCopyrightText: 2018-2020 Michael Reeves reeves.87@gmail.com
  * SPDX-License-Identifier: GPL-2.0-or-later
  */
 // clang-format on
 
 #ifndef DIFFTEXTWINDOW_H
 #define DIFFTEXTWINDOW_H
 
 #include "diff.h"
 #include "SourceData.h"
 
 #include "LineRef.h"
 #include "TypeUtils.h"
 
 #include <QLabel>
 #include <QMouseEvent>
 #include <QPaintEvent>
 #include <QPointer>
 #include <QSharedPointer>
 #include <QString>
 #include <QWheelEvent>
 
 #include <boost/signals2.hpp>
 #include <list>
 #include <memory>
 #include <vector>
 
 class QMenu;
 class QPushButton;
 class QScrollBar;
 class QStatusBar;
 class RecalcWordWrapThread;
 class Options;
 class DiffTextWindowData;
 class DiffTextWindowFrame;
 class EncodingLabel;
 class RLPainter;
 class SourceData;
 class FileNameLineEdit;
 
 class KDiff3App;
 
 class DiffTextWindow: public QWidget
 {
     Q_OBJECT
   public:
     //Using this as a scoped global
     static QPointer<QScrollBar> mVScrollBar;
     static QAtomicInteger<size_t> maxThreads();
 
     DiffTextWindow(DiffTextWindowFrame* pParent, e_SrcSelector winIdx, KDiff3App& app);
     ~DiffTextWindow() override;
     void init(
         const QString& fileName,
         const char* pTextCodec,
         e_LineEndStyle eLineEndStyle,
         const std::shared_ptr<LineDataVector>& pLineData,
         LineType size,
         const Diff3LineVector* pDiff3LineVector,
         const ManualDiffHelpList* pManualDiffHelpList);
 
     void setupConnections(const KDiff3App* app);
 
     void reset();
     void convertToLinePos(qint32 x, qint32 y, LineRef& line, qint32& pos);
 
     [[nodiscard]] QString getSelection() const;
     [[nodiscard]] LineRef getFirstLine() const;
     LineRef calcTopLineInFile(const LineRef firstLine) const;
 
     [[nodiscard]] qint32 getMaxTextWidth() const;
     [[nodiscard]] LineType getNofLines() const;
     [[nodiscard]] LineType getNofVisibleLines() const;
     [[nodiscard]] qint32 getVisibleTextAreaWidth() const;
 
     LineType convertLineToDiff3LineIdx(const LineRef line) const;
     LineRef convertDiff3LineIdxToLine(const LineType d3lIdx) const;
 
     void convertD3LCoordsToLineCoords(LineType d3LIdx, QtSizeType d3LPos, LineRef& line, QtSizeType& pos) const;
     void convertLineCoordsToD3LCoords(LineRef line, QtSizeType pos, LineType& d3LIdx, QtSizeType& d3LPos) const;
 
     void convertSelectionToD3LCoords() const;
 
     bool findString(const QString& s, LineRef& d3vLine, QtSizeType& posInLine, bool bDirDown, bool bCaseSensitive);
     void setSelection(LineRef firstLine, QtSizeType startPos, LineRef lastLine, QtSizeType endPos, LineRef& l, QtSizeType& p);
     void getSelectionRange(LineRef* firstLine, LineRef* lastLine, e_CoordType coordType) const;
 
     void setPaintingAllowed(bool bAllowPainting);
     void recalcWordWrap(bool bWordWrap, QtSizeType wrapLineVectorSize, qint32 visibleTextWidth);
     void recalcWordWrapHelper(QtSizeType wrapLineVectorSize, qint32 visibleTextWidth, size_t cacheListIdx);
 
     void printWindow(RLPainter& painter, const QRect& view, const QString& headerText, qint32 line, const LineType linesPerPage, const QColor& fgColor);
     void print(RLPainter& painter, const QRect& r, qint32 firstLine, const LineType nofLinesPerPage);
 
     static bool startRunnables();
 
     [[nodiscard]] bool isThreeWay() const;
     [[nodiscard]] const QString& getFileName() const;
 
     [[nodiscard]] e_SrcSelector getWindowIndex() const;
 
     [[nodiscard]] const QString getEncodingDisplayString() const;
     [[nodiscard]] e_LineEndStyle getLineEndStyle() const;
     [[nodiscard]] const Diff3LineVector* getDiff3LineVector() const;
 
     [[nodiscard]] qint32 getLineNumberWidth() const;
 
     void setSourceData(const QSharedPointer<SourceData>& inData);
 
     void scrollVertically(qint32 deltaY);
   Q_SIGNALS:
     void statusBarMessage(const QString& message);
     void resizeHeightChangedSignal(qint32 nofVisibleLines);
     void resizeWidthChangedSignal(qint32 nofVisibleColumns);
     void scrollDiffTextWindow(qint32 deltaX, qint32 deltaY);
     void newSelection();
     void selectionEnd();
     void setFastSelectorLine(LineType line);
     void gotFocus();
     void lineClicked(e_SrcSelector winIdx, LineRef line);
 
     void finishRecalcWordWrap(qint32 visibleTextWidthForPrinting);
 
     void finishDrop();
 
     void firstLineChanged(const LineRef firstLine);
   public Q_SLOTS:
     void setFirstLine(LineRef line);
     void setHorizScrollOffset(qint32 horizScrollOffset);
     void resetSelection();
     void setFastSelectorRange(qint32 line1, qint32 nofLines);
     void slotRefresh();
 
     void slotSelectAll();
 
     void slotCopy();
 
   protected:
     void mousePressEvent(QMouseEvent*) override;
     void mouseReleaseEvent(QMouseEvent*) override;
     void mouseMoveEvent(QMouseEvent*) override;
     void mouseDoubleClickEvent(QMouseEvent* e) override;
 
     void wheelEvent(QWheelEvent*) override;
 
     void paintEvent(QPaintEvent*) override;
     void dragEnterEvent(QDragEnterEvent* dragEnterEvent) override;
 
     void dropEvent(QDropEvent* dropEvent) override;
     void focusInEvent(QFocusEvent* e) override;
 
     void resizeEvent(QResizeEvent*) override;
     void timerEvent(QTimerEvent*) override;
 
   private:
     static std::vector<RecalcWordWrapThread*> s_runnables;
     static constexpr qint32 s_linesPerRunnable = 2000;
 
     /*
       This list exists solely to auto disconnect boost signals.
     */
     std::list<boost::signals2::scoped_connection> connections;
 
     KDiff3App& m_app;
     e_SrcSelector mWinIdx = e_SrcSelector::None;
     std::unique_ptr<DiffTextWindowData> d;
 
     void showStatusLine(const LineRef lineFromPos);
 
     bool canCopy() { return hasFocus() && !getSelection().isEmpty(); }
 };
 
 class DiffTextWindowFrame: public QWidget
 {
     Q_OBJECT
   public:
     DiffTextWindowFrame(QWidget* pParent, e_SrcSelector winIdx, const QSharedPointer<SourceData>& psd, KDiff3App& app);
     ~DiffTextWindowFrame() override;
     QPointer<DiffTextWindow> getDiffTextWindow();
     void init();
 
     void setupConnections(const KDiff3App* app);
 
   Q_SIGNALS:
     void fileNameChanged(const QString&, e_SrcSelector);
     void encodingChanged(const QByteArray&);
 
   public Q_SLOTS:
     void setFirstLine(LineRef firstLine);
 
   protected:
     bool eventFilter(QObject*, QEvent*) override;
     //void paintEvent(QPaintEvent*);
   private Q_SLOTS:
     void slotReturnPressed();
     void slotBrowseButtonClicked();
 
     void slotEncodingChanged(const QByteArray& name);
 
   private:
     QLabel* m_pLabel;
     QLabel* m_pTopLine;
     QLabel* m_pEncoding;
     QLabel* m_pLineEndStyle;
     QWidget* m_pTopLineWidget;
     FileNameLineEdit* m_pFileSelection;
     QPushButton* m_pBrowseButton;
 
     QPointer<DiffTextWindow> m_pDiffTextWindow;
     e_SrcSelector m_winIdx;
 
     QSharedPointer<SourceData> mSourceData;
 };
 
 class EncodingLabel: public QLabel
 {
     Q_OBJECT
   public:
     EncodingLabel(const QString& text, const QSharedPointer<SourceData>& psd);
 
   protected:
     void mouseMoveEvent(QMouseEvent* ev) override;
     void mousePressEvent(QMouseEvent* ev) override;
 
   Q_SIGNALS:
     void encodingChanged(const QByteArray&);
 
   private Q_SLOTS:
     void slotSelectEncoding();
 
   private:
     QMenu* m_pContextEncodingMenu;
     QSharedPointer<SourceData> m_pSourceData; //SourceData to get access to "isEmpty()" and "isFromBuffer()" functions
 
     void insertCodec(const QString& visibleCodecName, const QByteArray& nameArray, QList<QByteArray>& codecEnumList, QMenu* pMenu, const QByteArray& currentTextCodecEnum) const;
 };
 
 #endif