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class TGText


TGText

A TGText is a multi line text buffer. It allows the text to be
loaded from file, saved to file and edited. It is used in the
TGTextEdit widget. Single line text is handled by TGTextBuffer
and the TGTextEntry widget.

Function Members (Methods)

public:

	TGText()
	TGText(TGText* text)
	TGText(const char* string)
virtual	~TGText()
Bool_t	AddText(TGText* text)
Bool_t	Append(const char* fn)
TString	AsString()
Bool_t	BreakLine(TGLongPosition pos)
static TClass*	Class()
void	Clear()
Long_t	ColCount() const
Bool_t	DelChar(TGLongPosition pos)
Bool_t	DelLine(ULong_t pos)
Bool_t	DelText(TGLongPosition start, TGLongPosition end)
char	GetChar(TGLongPosition pos)
TGTextLine*	GetCurrentLine() const
const char*	GetFileName() const
char*	GetLine(TGLongPosition pos, ULong_t length)
Long_t	GetLineLength(Long_t row)
Long_t	GetLongestLine() const
Bool_t	InsChar(TGLongPosition pos, char c)
Bool_t	InsLine(ULong_t row, const char* string)
Bool_t	InsText(TGLongPosition pos, const char* buf)
Bool_t	InsText(TGLongPosition ins_pos, TGText* src, TGLongPosition start_src, TGLongPosition end_src)
virtual TClass*	IsA() const
Bool_t	IsSaved() const
Bool_t	Load(const char* fn, Long_t startpos = 0, Long_t length = -1)
Bool_t	LoadBuffer(const char* txtbuf)
Bool_t	Replace(TGLongPosition start, const char* oldText, const char* newText, Bool_t direction, Bool_t caseSensitive)
void	ReTab(Long_t row)
Long_t	RowCount() const
Bool_t	Save(const char* fn)
Bool_t	Search(TGLongPosition* foundPos, TGLongPosition start, const char* searchString, Bool_t direction, Bool_t caseSensitive)
virtual void	ShowMembers(TMemberInspector& insp)
virtual void	Streamer(TBuffer& b)
void	StreamerNVirtual(TBuffer& b)

protected:

	TGText(const TGText&)
void	Init()
void	LongestLine()
TGText&	operator=(const TGText&)
Bool_t	SetCurrentRow(Long_t row)

Data Members

protected:

Long_t	fColCount	number of columns in current line
TGTextLine*	fCurrent	current line
Long_t	fCurrentRow	current row number
TString	fFilename	name of opened file ("" if open buffer)
TGTextLine*	fFirst	first line of text
Bool_t	fIsSaved	false if text needs to be saved
Long_t	fLongestLine	length of longest line
Long_t	fRowCount	number of rows

Class Charts

Inheritance Inherited Members Includes Libraries

Function documentation

TGText(const TGText& )

copy constructor

TGText& operator=(const TGText& )

assignment operator

void Init()

 Common initialization method.

TGText()

 Create default (empty) text buffer.

TGText(TGText* text)

 Create text buffer and initialize with other text buffer.

TGText(const char* string)

 Create text buffer and initialize with single line string.

~TGText()

 Destroy text buffer.

void Clear()

 Clear text buffer.

Bool_t Load(const char* fn, Long_t startpos = 0, Long_t length = -1)

 Load text from file fn. Startpos is the begin from where to
 load the file and length is the number of characters to read
 from the file.

Bool_t LoadBuffer(const char* txtbuf)

 Load a 0 terminated buffer. Lines will be split at '\n'.

Bool_t Save(const char* fn)

 Save text buffer to file fn.

Bool_t Append(const char* fn)

 Append buffer to file fn.

Bool_t DelChar(TGLongPosition pos)

 Delete character at specified position pos.

Bool_t InsChar(TGLongPosition pos, char c)

 Insert character c at the specified position pos.

char GetChar(TGLongPosition pos)

 Get character a position pos. If charcater not valid return -1.

Bool_t DelText(TGLongPosition start, TGLongPosition end)

 Delete text between start and end positions. Returns false in
 case of failure (start and end not being within bounds).

Bool_t InsText(TGLongPosition ins_pos, TGText* src, TGLongPosition start_src, TGLongPosition end_src)

 Insert src text from start_src to end_src into text at position ins_pos.
 Returns false in case of failure (start_src, end_src out of range for
 src, and ins_pos out of range for this).

Bool_t InsText(TGLongPosition pos, const char* buf)

 Insert single line at specified position. Return false in case position
 is out of bounds.

Bool_t AddText(TGText* text)

 Add another text buffer to this buffer.

Bool_t InsLine(ULong_t row, const char* string)

 Insert string before specified position.
 Returns false if insertion failed.

Bool_t DelLine(ULong_t pos)

 Delete specified row. Returns false if row does not exist.

char * GetLine(TGLongPosition pos, ULong_t length)

 Return string at position pos. Returns 0 in case pos is not valid.
 The returned string must be deleted by the user.

Bool_t BreakLine(TGLongPosition pos)

 Break line at position pos. Returns false if pos is not valid.

Long_t GetLineLength(Long_t row)

 Get length of specified line. Returns -1 if row does not exist.

Bool_t SetCurrentRow(Long_t row)

 Make specified row the current row. Returns false if row does not exist.
 In which case fCurrent is not changed or set to the last valid line.

void ReTab(Long_t row)

 Redo all tabs in a line. Needed after a new tab is inserted.

Bool_t Search(TGLongPosition* foundPos, TGLongPosition start, const char* searchString, Bool_t direction, Bool_t caseSensitive)

 Search for string searchString starting at the specified position going
 in forward (direction = true) or backward direction. Returns true if
 found and foundPos is set accordingly.

Bool_t Replace(TGLongPosition start, const char* oldText, const char* newText, Bool_t direction, Bool_t caseSensitive)

 Replace oldText by newText. Returns false if nothing replaced.

void LongestLine()

 Set fLongestLine.

TString AsString()

 Returns content as ROOT string

Bool_t IsSaved() const

{ return fIsSaved; }

const char * GetFileName() const

{ return fFilename.Data(); }

TGTextLine * GetCurrentLine() const

{ return fCurrent; }

Long_t RowCount() const

{ return fRowCount; }

Long_t ColCount() const

{ return fColCount; }

Long_t GetLongestLine() const

{ return fLongestLine; }