464 lines
16 KiB
C++
464 lines
16 KiB
C++
#ifndef SYNEDIT_H
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#define SYNEDIT_H
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#include <QAbstractScrollArea>
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#include <QCursor>
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#include <QDateTime>
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#include <QFrame>
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#include <QStringList>
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#include <QTimer>
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#include <QWidget>
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#include "MiscClasses.h"
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#include "CodeFolding.h"
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#include "Types.h"
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#include "TextBuffer.h"
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#include "KeyStrokes.h"
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enum class SynFontSmoothMethod {
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None, AntiAlias, ClearType
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};
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enum class SynScrollHintFormat {
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shfTopLineOnly, shfTopToBottom
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};
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enum class SynScrollStyle {
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ssNone, ssHorizontal, ssVertical, ssBoth
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};
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enum class SynEditCaretType {
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ctVerticalLine, ctHorizontalLine, ctHalfBlock, ctBlock
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};
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enum class SynStatusChange {
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scNone = 0,
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scAll = 0x0001,
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scCaretX = 0x0002,
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scCaretY = 0x0004,
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scLeftChar = 0x0008,
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scTopLine = 0x0010,
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scInsertMode = 0x0020,
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scModified = 0x0040,
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scSelection = 0x0080,
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scReadOnly = 0x0100,
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scOpenFile = 0x0200
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};
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Q_DECLARE_FLAGS(SynStatusChanges, SynStatusChange)
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Q_DECLARE_OPERATORS_FOR_FLAGS(SynStatusChanges)
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enum class SynStateFlag {
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sfCaretChanged = 0x0001,
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sfScrollbarChanged = 0x0002,
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sfLinesChanging = 0x0004,
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sfIgnoreNextChar = 0x0008,
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sfCaretVisible = 0x0010,
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sfDblClicked = 0x0020,
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sfWaitForDragging = 0x0040
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};
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Q_DECLARE_FLAGS(SynStateFlags,SynStateFlag)
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Q_DECLARE_OPERATORS_FOR_FLAGS(SynStateFlags)
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enum SynEditorOption {
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eoAltSetsColumnMode = 0x00000001, //Holding down the Alt Key will put the selection mode into columnar format
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eoAutoIndent = 0x00000002, //Will indent the caret on new lines with the same amount of leading white space as the preceding line
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eoAddIndent = 0x00000004, //Will add one tab width of indent when typing { and :, and remove the same amount when typing }
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eoAutoSizeMaxScrollWidth = 0x00000008, //Automatically resizes the MaxScrollWidth property when inserting text
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//eoDisableScrollArrows = 0x00000010 , //Disables the scroll bar arrow buttons when you can't scroll in that direction any more
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eoDragDropEditing = 0x00000020, //Allows you to select a block of text and drag it within the document to another location
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eoDropFiles = 0x00000040, //Allows the editor accept OLE file drops
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eoEnhanceHomeKey = 0x00000080, //enhances home key positioning, similar to visual studio
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eoEnhanceEndKey = 0x00000100, //enhances End key positioning, similar to JDeveloper
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eoGroupUndo = 0x00000200, //When undoing/redoing actions, handle all continous changes of the same kind in one call instead undoing/redoing each command separately
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eoHalfPageScroll = 0x00000400, //When scrolling with page-up and page-down commands, only scroll a half page at a time
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eoHideShowScrollbars = 0x00000800, //if enabled, then the scrollbars will only show when necessary. If you have ScrollPastEOL, then it the horizontal bar will always be there (it uses MaxLength instead)
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eoKeepCaretX = 0x00001000 , //When moving through lines w/o Cursor Past EOL, keeps the X position of the cursor
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eoNoCaret = 0x00002000, //Makes it so the caret is never visible
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eoNoSelection = 0x00004000, //Disables selecting text
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eoRightMouseMovesCursor = 0x00008000, //When clicking with the right mouse for a popup menu, move the cursor to that location
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eoScrollByOneLess = 0x00010000, //Forces scrolling to be one less
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eoScrollHintFollows = 0x00020000, //The scroll hint follows the mouse when scrolling vertically
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eoScrollPastEof = 0x00040000, //Allows the cursor to go past the end of file marker
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eoScrollPastEol = 0x00080000, //Allows the cursor to go past the last character into the white space at the end of a line
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eoShowScrollHint = 0x00100000, //Shows a hint of the visible line numbers when scrolling vertically
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eoShowSpecialChars = 0x00200000, //Shows the special Characters
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eoSmartTabDelete = 0x00400000, //similar to Smart Tabs, but when you delete characters
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eoSmartTabs = 0x00800000, //When tabbing, the cursor will go to the next non-white space character of the previous line
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eoSpecialLineDefaultFg = 0x01000000, //disables the foreground text color override when using the OnSpecialLineColor event
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eoTabIndent = 0x02000000, //When active <Tab> and <Shift><Tab> act as block indent, unindent when text is selected
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eoTabsToSpaces = 0x04000000, //Converts a tab character to a specified number of space characters
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eoShowRainbowColor = 0x08000000,
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eoTrimTrailingSpaces = 0x10000000 //Spaces at the end of lines will be trimmed and not saved
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};
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Q_DECLARE_FLAGS(SynEditorOptions, SynEditorOption)
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Q_DECLARE_OPERATORS_FOR_FLAGS(SynEditorOptions)
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enum class SynReplaceAction {
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raCancel, raSkip, raReplace, raReplaceAll
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};
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enum class SynTransientType {
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ttBefore, ttAfter
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};
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enum class SynScrollBarKind {
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sbHorizontal, sbVertical
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};
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/*
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using SynPaintTransientProc = std::function<void(const QPaintDevice& paintDevice,
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SynTransientType transientType)>;
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*/
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using SynPlaceMarkProc = std::function<void(PSynEditMark& Mark)>;
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using SynProcessCommandProc = std::function<void(SynEditorCommand& command, QChar& AChar, void* data)>;
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using SynMouseCursorProc = std::function<void(const BufferCoord& aLineCharPos, QCursor & aCursor)>;
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using SynPaintProc = std::function<void(const QPaintDevice& paintDevice )>;
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using SynPreparePaintHighlightTokenProc = std::function<void(int row,
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int column, const QString& token, PSynHighlighterAttribute attr,
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SynFontStyles& style, QColor& foreground, QColor& background)>;
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using SynReplaceTextProc = std::function<void(const QString& ASearch, const QString& AReplace,
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int Line, int Column, int wordLen, SynReplaceAction& action)>;
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//using SynSpecialLineColorsProc = std::function<void(int Line,
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// bool& Special, QColor& foreground, QColor& backgroundColor)>;
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//using SynEditingAreasProc = std::function<void(int Line, SynEditingAreaList& areaList,
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// QColor& borderColor,SynEditingAreaType& areaType)>;
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//using SynGutterGetTextProc = std::function<void(int aLine, QString& aText)>;
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//using SynTGutterPaintProc = std::function<void(int aLine, int X, int Y)>;
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class SynEdit;
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using PSynEdit = std::shared_ptr<SynEdit>;
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class SynEdit : public QAbstractScrollArea
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{
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Q_OBJECT
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public:
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explicit SynEdit(QWidget *parent = nullptr);
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/**
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* @brief how many rows are there in the editor
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* @return
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*/
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int displayLineCount();
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DisplayCoord displayXY();
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int displayX();
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int displayY();
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BufferCoord caretXY();
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int caretX();
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int caretY();
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void setCaretX(int value);
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void setCaretY(int value);
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void setCaretXY(const BufferCoord& value);
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void setCaretXYEx(bool CallEnsureCursorPos, BufferCoord value);
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void setCaretXYCentered(bool ForceToMiddle, const BufferCoord& value);
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void invalidateGutter();
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void invalidateGutterLine(int aLine);
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void invalidateGutterLines(int FirstLine, int LastLine);
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DisplayCoord pixelsToNearestRowColumn(int aX, int aY);
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DisplayCoord pixelsToRowColumn(int aX, int aY);
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QPoint RowColumnToPixels(const DisplayCoord& coord);
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DisplayCoord bufferToDisplayPos(const BufferCoord& p);
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BufferCoord displayToBufferPos(const DisplayCoord& p);
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int charToColumn(int aLine, int aChar);
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int stringColumns(const QString& line, int colsBefore);
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int getLineIndent(const QString& line);
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int rowToLine(int aRow);
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int lineToRow(int aLine);
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int foldRowToLine(int Row);
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int foldLineToRow(int Line);
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void setDefaultKeystrokes();
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void invalidateLine(int Line);
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void invalidateLines(int FirstLine, int LastLine);
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void invalidateSelection();
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void invalidateRect(const QRect& rect);
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void invalidate();
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void lockPainter();
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void unlockPainter();
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bool selAvail();
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void setCaretAndSelection(const BufferCoord& ptCaret,
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const BufferCoord& ptBefore,
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const BufferCoord& ptAfter);
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void clearUndo();
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int charColumns(QChar ch);
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double dpiFactor();
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void showCaret();
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void hideCaret();
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int topLine() const;
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void setTopLine(int value);
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int linesInWindow() const;
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int leftChar() const;
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void setLeftChar(int Value);
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BufferCoord blockBegin() const;
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void setBlockBegin(BufferCoord value);
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BufferCoord blockEnd() const;
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void setBlockEnd(BufferCoord Value);
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SynSelectionMode activeSelectionMode() const;
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void setActiveSelectionMode(const SynSelectionMode &Value);
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int charsInWindow() const;
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int charWidth() const;
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int gutterWidth() const;
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void setGutterWidth(int value);
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bool modified() const;
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void setModified(bool Value);
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int maxScrollWidth() const;
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void setMaxScrollWidth(int Value);
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int tabWidth() const;
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PSynEditStringList lines() const;
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bool empty();
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signals:
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void Changed();
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void ChainUndoAdded();
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void ChainRedoAdded();
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void ChainLinesChanging();
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void ChainLinesChanged();
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void ChainListCleared();
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void ChainListDeleted(int Index, int Count);
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void ChainListInserted(int Index, int Count);
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void ChainListPutted(int Index, int Count);
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void FilesDropped(int X,int Y, const QStringList& AFiles);
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void GutterClicked(Qt::MouseButton button, int x, int y, int line, PSynEditMark mark);
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void ImeInputed(const QString& s);
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void contextHelp(const QString& word);
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void scrolled(SynScrollBarKind ScrollBar);
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void statusChanged(SynStatusChanges changes);
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void fontChanged();
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void tabSizeChanged();
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protected:
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virtual bool onGetSpecialLineColors(int Line,
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QColor& foreground, QColor& backgroundColor) ;
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virtual void onGetEditingAreas(int Line, SynEditingAreaList& areaList);
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virtual void onGutterGetText(int aLine, QString& aText);
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virtual void onGutterPaint(QPainter& painter, int aLine, int X, int Y);
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virtual void onPaint(QPainter& painter);
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private:
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void clearAreaList(SynEditingAreaList areaList);
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void computeCaret(int X, int Y);
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void computeScroll(int X, int Y);
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void doBlockIndent();
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void incPaintLock();
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void decPaintLock();
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bool mouseCapture();
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int clientWidth();
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int clientHeight();
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int clientTop();
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int clientLeft();
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QRect clientRect();
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void synFontChanged();
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void doOnPaintTransient(SynTransientType TransientType);
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void updateLastCaretX();
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void ensureCursorPosVisible();
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void ensureCursorPosVisibleEx(bool ForceToMiddle);
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void scrollWindow(int dx,int dy);
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void setInternalDisplayXY(const DisplayCoord& aPos);
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void internalSetCaretXY(const BufferCoord& Value);
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void setStatusChanged(SynStatusChanges changes);
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void doOnStatusChange(SynStatusChanges changes);
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void insertBlock(const BufferCoord& BB, const BufferCoord& BE, const QString& ChangeStr,
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bool AddToUndoList);
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void updateScrollbars();
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void updateCaret();
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void recalcCharExtent();
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QString expandAtWideGlyphs(const QString& S);
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void updateModifiedStatus();
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int scanFrom(int Index);
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void uncollapse(PSynEditFoldRange FoldRange);
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void foldOnListInserted(int Line, int Count);
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void foldOnListDeleted(int Line, int Count);
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void foldOnListCleared();
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void rescan(); // rescan for folds
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void rescanForFoldRanges();
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void scanForFoldRanges(PSynEditFoldRanges TopFoldRanges);
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int lineHasChar(int Line, int startChar, QChar character, const QString& highlighterAttrName);
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void findSubFoldRange(PSynEditFoldRanges TopFoldRanges,int FoldIndex, PSynEditFoldRange Parent);
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PSynEditFoldRange collapsedFoldStartAtLine(int Line);
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void setSelTextPrimitiveEx(SynSelectionMode PasteMode,
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const QString& Value, bool AddToUndoList);
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void doOnPaintTransientEx(SynTransientType TransientType, bool Lock);
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void initializeCaret();
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PSynEditFoldRange foldStartAtLine(int Line);
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QString substringByColumns(const QString& s, int startColumn, int& colLen);
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PSynEditFoldRange foldAroundLine(int Line);
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PSynEditFoldRange foldAroundLineEx(int Line, bool WantCollapsed, bool AcceptFromLine, bool AcceptToLine);
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PSynEditFoldRange checkFoldRange(SynEditFoldRanges* FoldRangeToCheck,int Line, bool WantCollapsed, bool AcceptFromLine, bool AcceptToLine);
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PSynEditFoldRange foldEndAtLine(int Line);
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void paintCaret(QPainter& painter, const QRect rcClip);
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private slots:
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void bookMarkOptionsChanged();
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void gutterChanged();
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void linesChanged();
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void linesChanging();
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void linesCleared();
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void linesDeleted(int index, int count);
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void linesInserted(int index, int count);
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void linesPutted(int index, int count);
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void redoAdded();
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void scrollTimerHandler();
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void undoAdded();
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void sizeOrFontChanged(bool bFont);
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void doChange();
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private:
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std::shared_ptr<QImage> mContentImage;
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SynEditFoldRanges mAllFoldRanges;
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SynEditCodeFolding mCodeFolding;
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bool mUseCodeFolding;
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bool mAlwaysShowCaret;
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BufferCoord mBlockBegin;
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BufferCoord mBlockEnd;
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int mCaretX;
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int mLastCaretX;
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int mCaretY;
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int mCharsInWindow;
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int mCharWidth;
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QFont mFontDummy;
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SynFontSmoothMethod mFontSmoothing;
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bool mMouseMoved;
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/* IME input */
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int mImeCount;
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bool mMBCSStepAside;
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/* end of IME input */
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bool mInserting;
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bool mPainting;
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PSynEditStringList mLines;
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PSynEditStringList mOrigLines;
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PSynEditUndoList mOrigUndoList;
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PSynEditUndoList mOrigRedoList;
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int mLinesInWindow;
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int mLeftChar;
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int mMaxScrollWidth;
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int mPaintLock; // lock counter for internal calculations
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bool mReadOnly;
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int mRightEdge;
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QColor mRightEdgeColor;
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QColor mScrollHintColor;
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SynScrollHintFormat mScrollHintFormat;
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SynScrollStyle mScrollBars;
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int mTextHeight;
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int mTextOffset;
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int mTopLine;
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PSynHighlighter mHighlighter;
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QColor mSelectedForeground;
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QColor mSelectedBackground;
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QColor mCaretColor;
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QColor mActiveLineColor;
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PSynEditUndoList mUndoList;
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PSynEditUndoList mRedoList;
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SynEditMarkList mBookMarks;
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int mMouseDownX;
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int mMouseDownY;
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SynBookMarkOpt mBookMarkOpt;
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bool mHideSelection;
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int mMouseWheelAccumulator;
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SynEditCaretType mOverwriteCaret;
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SynEditCaretType mInsertCaret;
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QPoint mCaretOffset;
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SynEditKeyStrokes mKeyStrokes;
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bool mModified;
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QDateTime mLastModifyTime;
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SynEditMarkList mMarkList;
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int mExtraLineSpacing;
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SynSelectionMode mSelectionMode;
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SynSelectionMode mActiveSelectionMode; //mode of the active selection
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bool mWantReturns;
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bool mWantTabs;
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SynGutter mGutter;
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int mTabWidth;
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QRect mInvalidateRect;
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SynStateFlags mStateFlags;
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SynEditorOptions mOptions;
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SynStatusChanges mStatusChanges;
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int mLastKey;
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Qt::KeyboardModifiers mLastKeyModifiers;
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//fSearchEngine: TSynEditSearchCustom;
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//fHookedCommandHandlers: TList;
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//fKbdHandler: TSynEditKbdHandler;
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// fFocusList: TList;
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// fPlugins: TList;
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QTimer* mScrollTimer;
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int mScrollDeltaX;
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int mScrollDeltaY;
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PSynEdit fChainedEditor;
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int mPaintTransientLock;
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bool mIsScrolling;
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int mPainterLock; // lock counter to prevent repaint while painting
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bool mUndoing;
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// event handlers
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SynPlaceMarkProc mOnClearMark;
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SynProcessCommandProc mOnCommandProcessed;
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SynMouseCursorProc mOnMouseCursor;
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SynPaintProc mOnPaint;
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SynPreparePaintHighlightTokenProc mOnPaintHighlightToken;
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SynPlaceMarkProc mOnPlaceMark;
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SynProcessCommandProc mOnProcessingCommand;
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SynProcessCommandProc mOnProcessingUserCommand;
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SynReplaceTextProc mOnReplaceText;
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// SynSpecialLineColorsProc mOnSpecialLineColors;
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// SynEditingAreasProc mOnEditingAreas;
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// SynGutterGetTextProc mOnGutterGetText;
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// SynTGutterPaintProc mOnGutterPaint;
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int mGutterWidth;
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//caret blink related
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int m_blinkTimerId;
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int m_blinkStatus;
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// QWidget interface
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protected:
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void paintEvent(QPaintEvent *event) override;
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friend class SynEditTextPainter;
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// QWidget interface
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protected:
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void resizeEvent(QResizeEvent *event) override;
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// QObject interface
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protected:
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void timerEvent(QTimerEvent *event) override;
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// QObject interface
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public:
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bool event(QEvent *event) override;
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};
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#endif // SYNEDIT_H
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