/******************************************************************************* / / File: TextView.h / / Description: BTextView displays and manages styled text. / / Copyright 1993-98, Be Incorporated, All Rights Reserved / *******************************************************************************/ #ifndef _TEXTVIEW_H #define _TEXTVIEW_H #include #include /*----------------------------------------------------------------*/ /*----- BTextView structures and definitions ---------------------*/ struct text_run { int32 offset; /* byte offset of first character of run*/ BFont font; /* font of run*/ rgb_color color; /* color of run*/ }; struct text_run_array { int32 count; /* number of text runs*/ text_run runs[1]; /* array of count number of runs*/ }; enum undo_state { B_UNDO_UNAVAILABLE, B_UNDO_TYPING, B_UNDO_CUT, B_UNDO_PASTE, B_UNDO_CLEAR, B_UNDO_DROP }; #if _PR2_COMPATIBLE_ extern "C" void _ReservedTextView2__9BTextViewFv(BTextView *object, BMessage *drag, BBitmap **bitmap, BPoint *point, BHandler **handler); #endif class BBitmap; class BClipboard; class BFile; class BList; class _BTextGapBuffer_; class _BLineBuffer_; class _BStyleBuffer_; class _BWidthBuffer_; class _BUndoBuffer_; class _BInlineInput_; class _BTextTrackState_; class _BTextChangeResult_; extern "C" status_t _init_interface_kit_(); /*----------------------------------------------------------------*/ /*----- BTextView class ------------------------------------------*/ class BTextView : public BView { public: BTextView(BRect frame, const char *name, BRect textRect, uint32 resizeMask, uint32 flags = B_WILL_DRAW | B_PULSE_NEEDED); BTextView(BRect frame, const char *name, BRect textRect, const BFont *initialFont, const rgb_color *initialColor, uint32 resizeMask, uint32 flags); BTextView(BMessage *data); virtual ~BTextView(); static BArchivable* Instantiate(BMessage *data); virtual status_t Archive(BMessage *data, bool deep = true) const; virtual void AttachedToWindow(); virtual void DetachedFromWindow(); virtual void Draw(BRect inRect); virtual void MouseDown(BPoint where); virtual void MouseUp(BPoint where); virtual void MouseMoved(BPoint where, uint32 code, const BMessage *message); virtual void WindowActivated(bool state); virtual void KeyDown(const char *bytes, int32 numBytes); virtual void Pulse(); virtual void FrameResized(float width, float height); virtual void MakeFocus(bool focusState = true); virtual void MessageReceived(BMessage *message); virtual BHandler* ResolveSpecifier(BMessage *message, int32 index, BMessage *specifier, int32 form, const char *property); virtual status_t GetSupportedSuites(BMessage *data); virtual status_t Perform(perform_code d, void *arg); void SetText(const char *inText, const text_run_array *inRuns = NULL); void SetText(const char *inText, int32 inLength, const text_run_array *inRuns = NULL); void SetText(BFile *inFile, int32 startOffset, int32 inLength, const text_run_array *inRuns = NULL); void Insert(const char *inText, const text_run_array *inRuns = NULL); void Insert(const char *inText, int32 inLength, const text_run_array *inRuns = NULL); void Insert(int32 startOffset, const char *inText, int32 inLength, const text_run_array *inRuns = NULL); void Delete(); void Delete(int32 startOffset, int32 endOffset); const char* Text() const; int32 TextLength() const; void GetText(int32 offset, int32 length, char *buffer) const; uchar ByteAt(int32 offset) const; int32 CountLines() const; int32 CurrentLine() const; void GoToLine(int32 lineNum); virtual void Cut(BClipboard *clipboard); virtual void Copy(BClipboard *clipboard); virtual void Paste(BClipboard *clipboard); void Clear(); virtual bool AcceptsPaste(BClipboard *clipboard); virtual bool AcceptsDrop(const BMessage *inMessage); virtual void Select(int32 startOffset, int32 endOffset); void SelectAll(); void GetSelection(int32 *outStart, int32 *outEnd) const; void SetFontAndColor(const BFont *inFont, uint32 inMode = B_FONT_ALL, const rgb_color *inColor = NULL); void SetFontAndColor(int32 startOffset, int32 endOffset, const BFont *inFont, uint32 inMode = B_FONT_ALL, const rgb_color *inColor = NULL); void GetFontAndColor(int32 inOffset, BFont *outFont, rgb_color *outColor = NULL) const; void GetFontAndColor(BFont *outFont, uint32 *outMode, rgb_color *outColor = NULL, bool *outEqColor = NULL) const; void SetRunArray(int32 startOffset, int32 endOffset, const text_run_array *inRuns); text_run_array* RunArray(int32 startOffset, int32 endOffset, int32 *outSize = NULL) const; int32 LineAt(int32 offset) const; int32 LineAt(BPoint point) const; BPoint PointAt(int32 inOffset, float *outHeight = NULL) const; int32 OffsetAt(BPoint point) const; int32 OffsetAt(int32 line) const; virtual void FindWord(int32 inOffset, int32 *outFromOffset, int32 *outToOffset); virtual bool CanEndLine(int32 offset); float LineWidth(int32 lineNum = 0) const; float LineHeight(int32 lineNum = 0) const; float TextHeight(int32 startLine, int32 endLine) const; void GetTextRegion(int32 startOffset, int32 endOffset, BRegion *outRegion) const; virtual void ScrollToOffset(int32 inOffset); void ScrollToSelection(); void Highlight(int32 startOffset, int32 endOffset); void SetTextRect(BRect rect); BRect TextRect() const; void SetStylable(bool stylable); bool IsStylable() const; void SetTabWidth(float width); float TabWidth() const; void MakeSelectable(bool selectable = true); bool IsSelectable() const; void MakeEditable(bool editable = true); bool IsEditable() const; void SetWordWrap(bool wrap); bool DoesWordWrap() const; void SetMaxBytes(int32 max); int32 MaxBytes() const; void DisallowChar(uint32 aChar); void AllowChar(uint32 aChar); void SetAlignment(alignment flag); alignment Alignment() const; void SetAutoindent(bool state); bool DoesAutoindent() const; void SetColorSpace(color_space colors); color_space ColorSpace() const; void MakeResizable(bool resize, BView *resizeView = NULL); bool IsResizable() const; void SetDoesUndo(bool undo); bool DoesUndo() const; void HideTyping(bool enabled); bool IsTypingHidden(void) const; virtual void ResizeToPreferred(); virtual void GetPreferredSize(float *width, float *height); virtual void AllAttached(); virtual void AllDetached(); static void* FlattenRunArray(const text_run_array *inArray, int32 *outSize = NULL); static text_run_array* UnflattenRunArray(const void *data, int32 *outSize = NULL); protected: virtual void InsertText(const char *inText, int32 inLength, int32 inOffset, const text_run_array *inRuns); virtual void DeleteText(int32 fromOffset, int32 toOffset); public: virtual void Undo(BClipboard *clipboard); undo_state UndoState(bool *isRedo) const; protected: virtual void GetDragParameters(BMessage *drag, BBitmap **bitmap, BPoint *point, BHandler **handler); /*----- Private or reserved -----------------------------------------*/ private: friend status_t _init_interface_kit_(); friend class _BTextTrackState_; #if _PR2_COMPATIBLE_ friend void _ReservedTextView2__9BTextViewFv(BTextView *object, BMessage *drag, BBitmap **bitmap, BPoint *point, BHandler **handler); #endif virtual void _ReservedTextView3(); virtual void _ReservedTextView4(); virtual void _ReservedTextView5(); virtual void _ReservedTextView6(); virtual void _ReservedTextView7(); virtual void _ReservedTextView8(); #if !_PR3_COMPATIBLE_ virtual void _ReservedTextView9(); virtual void _ReservedTextView10(); virtual void _ReservedTextView11(); virtual void _ReservedTextView12(); #endif void InitObject(BRect textRect, const BFont *initialFont, const rgb_color *initialColor); void HandleBackspace(); void HandleArrowKey(uint32 inArrowKey); void HandleDelete(); void HandlePageKey(uint32 inPageKey); void HandleAlphaKey(const char *bytes, int32 numBytes); void Refresh(int32 fromOffset, int32 toOffset, bool erase, bool scroll); void RecalLineBreaks(int32 *startLine, int32 *endLine); int32 FindLineBreak(int32 fromOffset, float *outAscent, float *outDescent, float *ioWidth); float StyledWidth(int32 fromOffset, int32 length, float *outAscent = NULL, float *outDescent = NULL) const; float ActualTabWidth(float location) const; void DoInsertText(const char *inText, int32 inLength, int32 inOffset, const text_run_array *inRuns, _BTextChangeResult_ *outResult); void DoDeleteText(int32 fromOffset, int32 toOffset, _BTextChangeResult_ *outResult); void DrawLines(int32 startLine, int32 endLine, int32 startOffset = -1, bool erase = false); void DrawCaret(int32 offset); void InvertCaret(); void DragCaret(int32 offset); void StopMouseTracking(); bool PerformMouseUp(BPoint where); bool PerformMouseMoved(BPoint where, uint32 code); void TrackMouse(BPoint where, const BMessage *message, bool force = false); void TrackDrag(BPoint where); void InitiateDrag(); bool MessageDropped(BMessage *inMessage, BPoint where, BPoint offset); void UpdateScrollbars(); void AutoResize(bool doredraw=true); void NewOffscreen(float padding = 0.0F); void DeleteOffscreen(); void Activate(); void Deactivate(); void NormalizeFont(BFont *font); uint32 CharClassification(int32 offset) const; int32 NextInitialByte(int32 offset) const; int32 PreviousInitialByte(int32 offset) const; bool GetProperty(BMessage *specifier, int32 form, const char *property, BMessage *reply); bool SetProperty(BMessage *specifier, int32 form, const char *property, BMessage *reply); bool CountProperties(BMessage *specifier, int32 form, const char *property, BMessage *reply); void HandleInputMethodChanged(BMessage *message); void HandleInputMethodLocationRequest(); void CancelInputMethod(); static void LockWidthBuffer(); static void UnlockWidthBuffer(); _BTextGapBuffer_* fText; _BLineBuffer_* fLines; _BStyleBuffer_* fStyles; BRect fTextRect; int32 fSelStart; int32 fSelEnd; bool fCaretVisible; bigtime_t fCaretTime; int32 fClickOffset; int32 fClickCount; bigtime_t fClickTime; int32 fDragOffset; uint8 fCursor; bool fActive; bool fStylable; float fTabWidth; bool fSelectable; bool fEditable; bool fWrap; int32 fMaxBytes; BList* fDisallowedChars; alignment fAlignment; bool fAutoindent; BBitmap* fOffscreen; color_space fColorSpace; bool fResizable; BView* fContainerView; _BUndoBuffer_* fUndo; /* was _reserved[0] */ _BInlineInput_* fInline; /* was _reserved[1] */ BMessageRunner * fDragRunner; /* was _reserved[2] */ BMessageRunner * fClickRunner; /* was _reserved[3] */ BPoint fWhere; _BTextTrackState_* fTrackingMouse; /* was _reserved[6] */ _BTextChangeResult_* fTextChange; /* was _reserved[7] */ uint32 _reserved[1]; /* was 8 */ #if !_PR3_COMPATIBLE_ uint32 _more_reserved[8]; #endif static _BWidthBuffer_* sWidths; static sem_id sWidthSem; static int32 sWidthAtom; }; /*-------------------------------------------------------------*/ /*-------------------------------------------------------------*/ #endif /* _TEXT_VIEW_H */