plugins/scintilla/scintilla/Editor.h

   1 // Scintilla source code edit control
   2 /** @file Editor.h
   3  ** Defines the main editor class.
   4  **/
   5 // Copyright 1998-2011 by Neil Hodgson <neilh@scintilla.org>
   6 // The License.txt file describes the conditions under which this software may be distributed.
   7
   8 #ifndef EDITOR_H
   9 #define EDITOR_H
  10
  11 #ifdef SCI_NAMESPACE
  12 namespace Scintilla {
  13 #endif
  14
  15 /**
  16  */
  17 class Caret {
  18 public:
  19         bool active;
  20         bool on;
  21         int period;
  22
  23         Caret();
  24 };
  25
  26 /**
  27  */
  28 class Timer {
  29 public:
  30         bool ticking;
  31         int ticksToWait;
  32         enum {tickSize = 100};
  33         TickerID tickerID;
  34
  35         Timer();
  36 };
  37
  38 /**
  39  */
  40 class Idler {
  41 public:
  42         bool state;
  43         IdlerID idlerID;
  44
  45         Idler();
  46 };
  47
  48 /**
  49  * When platform has a way to generate an event before painting,
  50  * accumulate needed styling range in StyleNeeded to avoid unnecessary work.
  51  */
  52 class StyleNeeded {
  53 public:
  54         bool active;
  55         Position upTo;
  56
  57         StyleNeeded() : active(false), upTo(0) {}
  58         void Reset() {
  59                 active = false;
  60                 upTo = 0;
  61         }
  62         void NeedUpTo(Position pos) {
  63                 if (upTo < pos)
  64                         upTo = pos;
  65         }
  66 };
  67
  68 /**
  69  * Hold a piece of text selected for copying or dragging.
  70  * The text is expected to hold a terminating '\0' and this is counted in len.
  71  */
  72 class SelectionText {
  73 public:
  74         char *s;
  75         int len;
  76         bool rectangular;
  77         bool lineCopy;
  78         int codePage;
  79         int characterSet;
  80         SelectionText() : s(0), len(0), rectangular(false), lineCopy(false), codePage(0), characterSet(0) {}
  81         ~SelectionText() {
  82                 Free();
  83         }
  84         void Free() {
  85                 Set(0, 0, 0, 0, false, false);
  86         }
  87         void Set(char *s_, int len_, int codePage_, int characterSet_, bool rectangular_, bool lineCopy_) {
  88                 delete []s;
  89                 s = s_;
  90                 if (s)
  91                         len = len_;
  92                 else
  93                         len = 0;
  94                 codePage = codePage_;
  95                 characterSet = characterSet_;
  96                 rectangular = rectangular_;
  97                 lineCopy = lineCopy_;
  98         }
  99         void Copy(const char *s_, int len_, int codePage_, int characterSet_, bool rectangular_, bool lineCopy_) {
 100                 delete []s;
 101                 s = 0;
 102                 s = new char[len_];
 103                 len = len_;
 104                 for (int i = 0; i < len_; i++) {
 105                         s[i] = s_[i];
 106                 }
 107                 codePage = codePage_;
 108                 characterSet = characterSet_;
 109                 rectangular = rectangular_;
 110                 lineCopy = lineCopy_;
 111         }
 112         void Copy(const SelectionText &other) {
 113                 Copy(other.s, other.len, other.codePage, other.characterSet, other.rectangular, other.lineCopy);
 114         }
 115 };
 116
 117 /**
 118  */
 119 class Editor : public DocWatcher {
 120         // Private so Editor objects can not be copied
 121         Editor(const Editor &);
 122         Editor &operator=(const Editor &);
 123
 124 protected:      // ScintillaBase subclass needs access to much of Editor
 125
 126         /** On GTK+, Scintilla is a container widget holding two scroll bars
 127          * whereas on Windows there is just one window with both scroll bars turned on. */
 128         Window wMain;   ///< The Scintilla parent window
 129
 130         /** Style resources may be expensive to allocate so are cached between uses.
 131          * When a style attribute is changed, this cache is flushed. */
 132         bool stylesValid;
 133         ViewStyle vs;
 134         Palette palette;
 135
 136         int printMagnification;
 137         int printColourMode;
 138         int printWrapState;
 139         int cursorMode;
 140         int controlCharSymbol;
 141
 142         // Highlight current folding block
 143         HighlightDelimiter highlightDelimiter;
 144
 145         bool hasFocus;
 146         bool hideSelection;
 147         bool inOverstrike;
 148         bool mouseDownCaptures;
 149
 150         /** In bufferedDraw mode, graphics operations are drawn to a pixmap and then copied to
 151          * the screen. This avoids flashing but is about 30% slower. */
 152         bool bufferedDraw;
 153         /** In twoPhaseDraw mode, drawing is performed in two phases, first the background
 154         * and then the foreground. This avoids chopping off characters that overlap the next run. */
 155         bool twoPhaseDraw;
 156
 157         int xOffset;            ///< Horizontal scrolled amount in pixels
 158         int xCaretMargin;       ///< Ensure this many pixels visible on both sides of caret
 159         bool horizontalScrollBarVisible;
 160         int scrollWidth;
 161         bool trackLineWidth;
 162         int lineWidthMaxSeen;
 163         bool verticalScrollBarVisible;
 164         bool endAtLastLine;
 165         int caretSticky;
 166         bool multipleSelection;
 167         bool additionalSelectionTyping;
 168         int multiPasteMode;
 169         bool additionalCaretsBlink;
 170         bool additionalCaretsVisible;
 171
 172         int virtualSpaceOptions;
 173
 174         Surface *pixmapLine;
 175         Surface *pixmapSelMargin;
 176         Surface *pixmapSelPattern;
 177         Surface *pixmapIndentGuide;
 178         Surface *pixmapIndentGuideHighlight;
 179
 180         LineLayoutCache llc;
 181         PositionCache posCache;
 182
 183         KeyMap kmap;
 184
 185         Caret caret;
 186         Timer timer;
 187         Timer autoScrollTimer;
 188         enum { autoScrollDelay = 200 };
 189
 190         Idler idler;
 191
 192         Point lastClick;
 193         unsigned int lastClickTime;
 194         int dwellDelay;
 195         int ticksToDwell;
 196         bool dwelling;
 197         enum { selChar, selWord, selLine } selectionType;
 198         Point ptMouseLast;
 199         enum { ddNone, ddInitial, ddDragging } inDragDrop;
 200         bool dropWentOutside;
 201         SelectionPosition posDrag;
 202         SelectionPosition posDrop;
 203         int hotSpotClickPos;
 204         int lastXChosen;
 205         int lineAnchor;
 206         int originalAnchorPos;
 207         int wordSelectAnchorStartPos;
 208         int wordSelectAnchorEndPos;
 209         int wordSelectInitialCaretPos;
 210         int targetStart;
 211         int targetEnd;
 212         int searchFlags;
 213         int topLine;
 214         int posTopLine;
 215         int lengthForEncode;
 216
 217         int needUpdateUI;
 218         Position braces[2];
 219         int bracesMatchStyle;
 220         int highlightGuideColumn;
 221
 222         int theEdge;
 223
 224         enum { notPainting, painting, paintAbandoned } paintState;
 225         PRectangle rcPaint;
 226         bool paintingAllText;
 227         StyleNeeded styleNeeded;
 228
 229         int modEventMask;
 230
 231         SelectionText drag;
 232         Selection sel;
 233         bool primarySelection;
 234
 235         int caretXPolicy;
 236         int caretXSlop; ///< Ensure this many pixels visible on both sides of caret
 237
 238         int caretYPolicy;
 239         int caretYSlop; ///< Ensure this many lines visible on both sides of caret
 240
 241         int visiblePolicy;
 242         int visibleSlop;
 243
 244         int searchAnchor;
 245
 246         bool recordingMacro;
 247
 248         int foldFlags;
 249         ContractionState cs;
 250
 251         // Hotspot support
 252         int hsStart;
 253         int hsEnd;
 254
 255         // Wrapping support
 256         enum { eWrapNone, eWrapWord, eWrapChar } wrapState;
 257         enum { wrapLineLarge = 0x7ffffff };
 258         int wrapWidth;
 259         int wrapStart;
 260         int wrapEnd;
 261         int wrapVisualFlags;
 262         int wrapVisualFlagsLocation;
 263         int wrapVisualStartIndent;
 264         int wrapAddIndent; // This will be added to initial indent of line
 265         int wrapIndentMode; // SC_WRAPINDENT_FIXED, _SAME, _INDENT
 266
 267         bool convertPastes;
 268
 269         Document *pdoc;
 270
 271         Editor();
 272         virtual ~Editor();
 273         virtual void Initialise() = 0;
 274         virtual void Finalise();
 275
 276         void InvalidateStyleData();
 277         void InvalidateStyleRedraw();
 278         virtual void RefreshColourPalette(Palette &pal, bool want);
 279         void RefreshStyleData();
 280         void DropGraphics();
 281
 282         virtual PRectangle GetClientRectangle();
 283         PRectangle GetTextRectangle();
 284
 285         int LinesOnScreen();
 286         int LinesToScroll();
 287         int MaxScrollPos();
 288         SelectionPosition ClampPositionIntoDocument(SelectionPosition sp) const;
 289         Point LocationFromPosition(SelectionPosition pos);
 290         Point LocationFromPosition(int pos);
 291         int XFromPosition(int pos);
 292         int XFromPosition(SelectionPosition sp);
 293         SelectionPosition SPositionFromLocation(Point pt, bool canReturnInvalid=false, bool charPosition=false, bool virtualSpace=true);
 294         int PositionFromLocation(Point pt, bool canReturnInvalid=false, bool charPosition=false);
 295         SelectionPosition SPositionFromLineX(int lineDoc, int x);
 296         int PositionFromLineX(int line, int x);
 297         int LineFromLocation(Point pt);
 298         void SetTopLine(int topLineNew);
 299
 300         bool AbandonPaint();
 301         void RedrawRect(PRectangle rc);
 302         void Redraw();
 303         void RedrawSelMargin(int line=-1, bool allAfter=false);
 304         PRectangle RectangleFromRange(int start, int end);
 305         void InvalidateRange(int start, int end);
 306
 307         bool UserVirtualSpace() const {
 308                 return ((virtualSpaceOptions & SCVS_USERACCESSIBLE) != 0);
 309         }
 310         int CurrentPosition();
 311         bool SelectionEmpty();
 312         SelectionPosition SelectionStart();
 313         SelectionPosition SelectionEnd();
 314         void SetRectangularRange();
 315         void ThinRectangularRange();
 316         void InvalidateSelection(SelectionRange newMain, bool invalidateWholeSelection=false);
 317         void SetSelection(SelectionPosition currentPos_, SelectionPosition anchor_);
 318         void SetSelection(int currentPos_, int anchor_);
 319         void SetSelection(SelectionPosition currentPos_);
 320         void SetSelection(int currentPos_);
 321         void SetEmptySelection(SelectionPosition currentPos_);
 322         void SetEmptySelection(int currentPos_);
 323         bool RangeContainsProtected(int start, int end) const;
 324         bool SelectionContainsProtected();
 325         int MovePositionOutsideChar(int pos, int moveDir, bool checkLineEnd=true) const;
 326         SelectionPosition MovePositionOutsideChar(SelectionPosition pos, int moveDir, bool checkLineEnd=true) const;
 327         int MovePositionTo(SelectionPosition newPos, Selection::selTypes sel=Selection::noSel, bool ensureVisible=true);
 328         int MovePositionTo(int newPos, Selection::selTypes sel=Selection::noSel, bool ensureVisible=true);
 329         SelectionPosition MovePositionSoVisible(SelectionPosition pos, int moveDir);
 330         SelectionPosition MovePositionSoVisible(int pos, int moveDir);
 331         Point PointMainCaret();
 332         void SetLastXChosen();
 333
 334         void ScrollTo(int line, bool moveThumb=true);
 335         virtual void ScrollText(int linesToMove);
 336         void HorizontalScrollTo(int xPos);
 337         void VerticalCentreCaret();
 338         void MoveSelectedLines(int lineDelta);
 339         void MoveSelectedLinesUp();
 340         void MoveSelectedLinesDown();
 341         void MoveCaretInsideView(bool ensureVisible=true);
 342         int DisplayFromPosition(int pos);
 343
 344         struct XYScrollPosition {
 345                 int xOffset;
 346                 int topLine;
 347                 XYScrollPosition(int xOffset_, int topLine_) : xOffset(xOffset_), topLine(topLine_) {}
 348         };
 349         XYScrollPosition XYScrollToMakeVisible(const bool useMargin, const bool vert, const bool horiz);
 350         void SetXYScroll(XYScrollPosition newXY);
 351         void EnsureCaretVisible(bool useMargin=true, bool vert=true, bool horiz=true);
 352         void ShowCaretAtCurrentPosition();
 353         void DropCaret();
 354         void InvalidateCaret();
 355         virtual void UpdateSystemCaret();
 356
 357         void NeedWrapping(int docLineStart = 0, int docLineEnd = wrapLineLarge);
 358         bool WrapOneLine(Surface *surface, int lineToWrap);
 359         bool WrapLines(bool fullWrap, int priorityWrapLineStart);
 360         void LinesJoin();
 361         void LinesSplit(int pixelWidth);
 362
 363         int SubstituteMarkerIfEmpty(int markerCheck, int markerDefault);
 364         void PaintSelMargin(Surface *surface, PRectangle &rc);
 365         LineLayout *RetrieveLineLayout(int lineNumber);
 366         void LayoutLine(int line, Surface *surface, ViewStyle &vstyle, LineLayout *ll,
 367                 int width=LineLayout::wrapWidthInfinite);
 368         ColourAllocated SelectionBackground(ViewStyle &vsDraw, bool main);
 369         ColourAllocated TextBackground(ViewStyle &vsDraw, bool overrideBackground, ColourAllocated background, int inSelection, bool inHotspot, int styleMain, int i, LineLayout *ll);
 370         void DrawIndentGuide(Surface *surface, int lineVisible, int lineHeight, int start, PRectangle rcSegment, bool highlight);
 371         void DrawWrapMarker(Surface *surface, PRectangle rcPlace, bool isEndMarker, ColourAllocated wrapColour);
 372         void DrawEOL(Surface *surface, ViewStyle &vsDraw, PRectangle rcLine, LineLayout *ll,
 373                 int line, int lineEnd, int xStart, int subLine, int subLineStart,
 374                 bool overrideBackground, ColourAllocated background,
 375                 bool drawWrapMark, ColourAllocated wrapColour);
 376         void DrawIndicator(int indicNum, int startPos, int endPos, Surface *surface, ViewStyle &vsDraw,
 377                 int xStart, PRectangle rcLine, LineLayout *ll, int subLine);
 378         void DrawIndicators(Surface *surface, ViewStyle &vsDraw, int line, int xStart,
 379                 PRectangle rcLine, LineLayout *ll, int subLine, int lineEnd, bool under);
 380         void DrawAnnotation(Surface *surface, ViewStyle &vsDraw, int line, int xStart,
 381         PRectangle rcLine, LineLayout *ll, int subLine);
 382         void DrawLine(Surface *surface, ViewStyle &vsDraw, int line, int lineVisible, int xStart,
 383                 PRectangle rcLine, LineLayout *ll, int subLine);
 384         void DrawBlockCaret(Surface *surface, ViewStyle &vsDraw, LineLayout *ll, int subLine,
 385                 int xStart, int offset, int posCaret, PRectangle rcCaret, ColourAllocated caretColour);
 386         void DrawCarets(Surface *surface, ViewStyle &vsDraw, int line, int xStart,
 387                 PRectangle rcLine, LineLayout *ll, int subLine);
 388         void RefreshPixMaps(Surface *surfaceWindow);
 389         void Paint(Surface *surfaceWindow, PRectangle rcArea);
 390         long FormatRange(bool draw, Sci_RangeToFormat *pfr);
 391         int TextWidth(int style, const char *text);
 392
 393         virtual void SetVerticalScrollPos() = 0;
 394         virtual void SetHorizontalScrollPos() = 0;
 395         virtual bool ModifyScrollBars(int nMax, int nPage) = 0;
 396         virtual void ReconfigureScrollBars();
 397         void SetScrollBars();
 398         void ChangeSize();
 399
 400         void FilterSelections();
 401         int InsertSpace(int position, unsigned int spaces);
 402         void AddChar(char ch);
 403         virtual void AddCharUTF(char *s, unsigned int len, bool treatAsDBCS=false);
 404         void InsertPaste(SelectionPosition selStart, const char *text, int len);
 405         void ClearSelection(bool retainMultipleSelections=false);
 406         void ClearAll();
 407         void ClearDocumentStyle();
 408         void Cut();
 409         void PasteRectangular(SelectionPosition pos, const char *ptr, int len);
 410         virtual void Copy() = 0;
 411         virtual void CopyAllowLine();
 412         virtual bool CanPaste();
 413         virtual void Paste() = 0;
 414         void Clear();
 415         void SelectAll();
 416         void Undo();
 417         void Redo();
 418         void DelChar();
 419         void DelCharBack(bool allowLineStartDeletion);
 420         virtual void ClaimSelection() = 0;
 421
 422         virtual void NotifyChange() = 0;
 423         virtual void NotifyFocus(bool focus);
 424         virtual int GetCtrlID() { return ctrlID; }
 425         virtual void NotifyParent(SCNotification scn) = 0;
 426         virtual void NotifyStyleToNeeded(int endStyleNeeded);
 427         void NotifyChar(int ch);
 428         void NotifySavePoint(bool isSavePoint);
 429         void NotifyModifyAttempt();
 430         virtual void NotifyDoubleClick(Point pt, bool shift, bool ctrl, bool alt);
 431         void NotifyHotSpotClicked(int position, bool shift, bool ctrl, bool alt);
 432         void NotifyHotSpotDoubleClicked(int position, bool shift, bool ctrl, bool alt);
 433         void NotifyHotSpotReleaseClick(int position, bool shift, bool ctrl, bool alt);
 434         void NotifyUpdateUI();
 435         void NotifyPainted();
 436         void NotifyIndicatorClick(bool click, int position, bool shift, bool ctrl, bool alt);
 437         bool NotifyMarginClick(Point pt, bool shift, bool ctrl, bool alt);
 438         void NotifyNeedShown(int pos, int len);
 439         void NotifyDwelling(Point pt, bool state);
 440         void NotifyZoom();
 441
 442         void NotifyModifyAttempt(Document *document, void *userData);
 443         void NotifySavePoint(Document *document, void *userData, bool atSavePoint);
 444         void CheckModificationForWrap(DocModification mh);
 445         void NotifyModified(Document *document, DocModification mh, void *userData);
 446         void NotifyDeleted(Document *document, void *userData);
 447         void NotifyStyleNeeded(Document *doc, void *userData, int endPos);
 448         void NotifyLexerChanged(Document *doc, void *userData);
 449         void NotifyErrorOccurred(Document *doc, void *userData, int status);
 450         void NotifyMacroRecord(unsigned int iMessage, uptr_t wParam, sptr_t lParam);
 451
 452         void ContainerNeedsUpdate(int flags);
 453         void PageMove(int direction, Selection::selTypes sel=Selection::noSel, bool stuttered = false);
 454         enum { cmSame, cmUpper, cmLower } caseMap;
 455         virtual std::string CaseMapString(const std::string &s, int caseMapping);
 456         void ChangeCaseOfSelection(int caseMapping);
 457         void LineTranspose();
 458         void Duplicate(bool forLine);
 459         virtual void CancelModes();
 460         void NewLine();
 461         void CursorUpOrDown(int direction, Selection::selTypes sel=Selection::noSel);
 462         void ParaUpOrDown(int direction, Selection::selTypes sel=Selection::noSel);
 463         int StartEndDisplayLine(int pos, bool start);
 464         virtual int KeyCommand(unsigned int iMessage);
 465         virtual int KeyDefault(int /* key */, int /*modifiers*/);
 466         int KeyDown(int key, bool shift, bool ctrl, bool alt, bool *consumed=0);
 467
 468         int GetWhitespaceVisible();
 469         void SetWhitespaceVisible(int view);
 470
 471         void Indent(bool forwards);
 472
 473         virtual CaseFolder *CaseFolderForEncoding();
 474         long FindText(uptr_t wParam, sptr_t lParam);
 475         void SearchAnchor();
 476         long SearchText(unsigned int iMessage, uptr_t wParam, sptr_t lParam);
 477         long SearchInTarget(const char *text, int length);
 478         void GoToLine(int lineNo);
 479
 480         virtual void CopyToClipboard(const SelectionText &selectedText) = 0;
 481         char *CopyRange(int start, int end);
 482         void CopySelectionRange(SelectionText *ss, bool allowLineCopy=false);
 483         void CopyRangeToClipboard(int start, int end);
 484         void CopyText(int length, const char *text);
 485         void SetDragPosition(SelectionPosition newPos);
 486         virtual void DisplayCursor(Window::Cursor c);
 487         virtual bool DragThreshold(Point ptStart, Point ptNow);
 488         virtual void StartDrag();
 489         void DropAt(SelectionPosition position, const char *value, bool moving, bool rectangular);
 490         /** PositionInSelection returns true if position in selection. */
 491         bool PositionInSelection(int pos);
 492         bool PointInSelection(Point pt);
 493         bool PointInSelMargin(Point pt);
 494         Window::Cursor GetMarginCursor(Point pt);
 495         void LineSelection(int lineCurrent_, int lineAnchor_);
 496         void WordSelection(int pos);
 497         void DwellEnd(bool mouseMoved);
 498         void MouseLeave();
 499         virtual void ButtonDown(Point pt, unsigned int curTime, bool shift, bool ctrl, bool alt);
 500         void ButtonMove(Point pt);
 501         void ButtonUp(Point pt, unsigned int curTime, bool ctrl);
 502
 503         void Tick();
 504         bool Idle();
 505         virtual void SetTicking(bool on) = 0;
 506         virtual bool SetIdle(bool) { return false; }
 507         virtual void SetMouseCapture(bool on) = 0;
 508         virtual bool HaveMouseCapture() = 0;
 509         void SetFocusState(bool focusState);
 510
 511         int PositionAfterArea(PRectangle rcArea);
 512         void StyleToPositionInView(Position pos);
 513         void IdleStyling();
 514         virtual void QueueStyling(int upTo);
 515
 516         virtual bool PaintContains(PRectangle rc);
 517         bool PaintContainsMargin();
 518         void CheckForChangeOutsidePaint(Range r);
 519         void SetBraceHighlight(Position pos0, Position pos1, int matchStyle);
 520
 521         void SetAnnotationHeights(int start, int end);
 522         void SetDocPointer(Document *document);
 523
 524         void SetAnnotationVisible(int visible);
 525
 526         void Expand(int &line, bool doExpand);
 527         void ToggleContraction(int line);
 528         int ContractedFoldNext(int lineStart);
 529         void EnsureLineVisible(int lineDoc, bool enforcePolicy);
 530         int GetTag(char *tagValue, int tagNumber);
 531         int ReplaceTarget(bool replacePatterns, const char *text, int length=-1);
 532
 533         bool PositionIsHotspot(int position);
 534         bool PointIsHotspot(Point pt);
 535         void SetHotSpotRange(Point *pt);
 536         void GetHotSpotRange(int &hsStart, int &hsEnd);
 537
 538         int CodePage() const;
 539         virtual bool ValidCodePage(int /* codePage */) const { return true; }
 540         int WrapCount(int line);
 541         void AddStyledText(char *buffer, int appendLength);
 542
 543         virtual sptr_t DefWndProc(unsigned int iMessage, uptr_t wParam, sptr_t lParam) = 0;
 544         void StyleSetMessage(unsigned int iMessage, uptr_t wParam, sptr_t lParam);
 545         sptr_t StyleGetMessage(unsigned int iMessage, uptr_t wParam, sptr_t lParam);
 546
 547         static const char *StringFromEOLMode(int eolMode);
 548
 549         static sptr_t StringResult(sptr_t lParam, const char *val);
 550
 551 public:
 552         // Public so the COM thunks can access it.
 553         bool IsUnicodeMode() const;
 554         // Public so scintilla_send_message can use it.
 555         virtual sptr_t WndProc(unsigned int iMessage, uptr_t wParam, sptr_t lParam);
 556         // Public so scintilla_set_id can use it.
 557         int ctrlID;
 558         // Public so COM methods for drag and drop can set it.
 559         int errorStatus;
 560         friend class AutoSurface;
 561         friend class SelectionLineIterator;
 562 };
 563
 564 /**
 565  * A smart pointer class to ensure Surfaces are set up and deleted correctly.
 566  */
 567 class AutoSurface {
 568 private:
 569         Surface *surf;
 570 public:
 571         AutoSurface(Editor *ed) : surf(0) {
 572                 if (ed->wMain.GetID()) {
 573                         surf = Surface::Allocate();
 574                         if (surf) {
 575                                 surf->Init(ed->wMain.GetID());
 576                                 surf->SetUnicodeMode(SC_CP_UTF8 == ed->CodePage());
 577                                 surf->SetDBCSMode(ed->CodePage());
 578                         }
 579                 }
 580         }
 581         AutoSurface(SurfaceID sid, Editor *ed) : surf(0) {
 582                 if (ed->wMain.GetID()) {
 583                         surf = Surface::Allocate();
 584                         if (surf) {
 585                                 surf->Init(sid, ed->wMain.GetID());
 586                                 surf->SetUnicodeMode(SC_CP_UTF8 == ed->CodePage());
 587                                 surf->SetDBCSMode(ed->CodePage());
 588                         }
 589                 }
 590         }
 591         ~AutoSurface() {
 592                 delete surf;
 593         }
 594         Surface *operator->() const {
 595                 return surf;
 596         }
 597         operator Surface *() const {
 598                 return surf;
 599         }
 600 };
 601
 602 #ifdef SCI_NAMESPACE
 603 }
 604 #endif
 605
 606 #endif