TGTextView

class description - source file - inheritance tree

class TGTextView : public TGView


    protected:

      virtual void Copy(TObject&)
      virtual void DrawRegion(Int_t x, Int_t y, UInt_t w, UInt_t h)
              void Init(ULong_t bg)
      virtual void Mark(Long_t xPos, Long_t yPos)
      virtual void UnMark()

    public:

           TGTextView TGTextView(const TGWindow* parent, UInt_t w, UInt_t h, Int_t id = -1, UInt_t sboptions = 0, ULong_t back = fgWhitePixel)
           TGTextView TGTextView(const TGWindow* parent, UInt_t w, UInt_t h, TGText* text, Int_t id = -1, UInt_t sboptions = 0, ULong_t back = fgWhitePixel)
           TGTextView TGTextView(const TGWindow* parent, UInt_t w, UInt_t h, const char* string, Int_t id = -1, UInt_t sboptions = 0, ULong_t back = fgWhitePixel)
           TGTextView TGTextView(TGTextView&)
         virtual void ~TGTextView()
         virtual void AddLine(const char* string)
         virtual void AddText(TGText* text)
         virtual void AdjustWidth()
       static TClass* Class()
         virtual void Clear(Option_t*)
       virtual Bool_t Copy()
         virtual void DataChanged()
              TGText* GetText() const
       virtual Bool_t HandleButton(Event_t* event)
       virtual Bool_t HandleSelectionRequest(Event_t* event)
      virtual TClass* IsA() const
       virtual Bool_t IsSaved()
       virtual Bool_t LoadBuffer(const char* txtbuf)
       virtual Bool_t LoadFile(const char* fname, long startpos = 0, long length = -1)
       virtual Long_t ReturnHeighestColHeight()
       virtual Long_t ReturnLineCount()
       virtual Long_t ReturnLineLength(Long_t line)
       virtual Long_t ReturnLongestLine()
       virtual Long_t ReturnLongestLineWidth()
       virtual Bool_t Search(const char* string, Bool_t direction, Bool_t caseSensitive)
       virtual Bool_t SelectAll()
         virtual void SetFont(FontStruct_t font)
         virtual void SetText(TGText* text)
         virtual void ShowMembers(TMemberInspector& insp, char* parent)
         virtual void Streamer(TBuffer& b)
                 void StreamerNVirtual(TBuffer& b)
       virtual Long_t ToObjXCoord(Long_t xCoord, Long_t line)
       virtual Long_t ToObjYCoord(Long_t yCoord)
       virtual Long_t ToScrXCoord(Long_t xCoord, Long_t line)
       virtual Long_t ToScrYCoord(Long_t yCoord)


  Data Members


    protected:

                  TGText* fText                          text buffer
                  TGText* fClipText                      clipboard text buffer
             FontStruct_t fFont                          text font
                    Int_t fMaxAscent                     maximum ascent in font
                    Int_t fMaxDescent                    maximum descent in font
                    Int_t fMaxWidth                      maximum width of character in font
               GContext_t fNormGC                        graphics context for drawing text
               GContext_t fSelGC                         graphics context for drawing marked text
               GContext_t fSelbackGC                     graphics context for drawing marked background
                   Bool_t fMarkedFromX                   true if text is marked from x
                   Bool_t fMarkedFromY                   true if text is marker from y
                   Bool_t fDeleteGC                      delete widget specific contexts
              static TGGC fgDefaultGC                    
              static TGGC fgDefaultSelectedGC            
              static TGGC fgDefaultSelectedBackgroundGC  
      static FontStruct_t fgDefaultFontStruct

See also

TGTextEdit

Class Description

                                                                      
 TGTextView                                                           
                                                                      
 A TGTextView is a text viewer widget. It is a specialization of      
 TGView. It uses the TGText class (which contains all text            
 manipulation code, i.e. loading a file in memory, changing,          
 removing lines, etc.). Use a TGTextView to view non-editable text.   
 For supported messages see TGView.
void Init(ULong_t /*back*/) 
 Initialize a text view widget.
TGTextView(const TGWindow *parent, UInt_t w, UInt_t h, Int_t id, UInt_t sboptions, ULong_t back) : TGView(parent, w, h, id, 3, 3, kSunkenFrame | kDoubleBorder, sboptions, back) 
 Create a text view widget.
TGTextView(const TGWindow *parent, UInt_t w, UInt_t h, TGText *text, Int_t id, UInt_t sboptions, ULong_t back) : TGView(parent, w, h, id, 3, 3, kSunkenFrame | kDoubleBorder, sboptions, back) 
 Create a text view widget.
TGTextView(const TGWindow *parent, UInt_t w, UInt_t h, const char *string, Int_t id, UInt_t sboptions, ULong_t back) : TGView(parent, w, h, id, 3, 3, kSunkenFrame | kDoubleBorder, sboptions, back) 
 Create a text view widget.
~TGTextView() 
 Cleanup text view widget.
void SetText(TGText *text) 
 Adopt a new text buffer. The text will be deleted by this object.
void AddText(TGText *text) 
 Add text to the view widget.
void AddLine(const char *string) 
 Add a line of text to the view widget.
Long_t ReturnLongestLineWidth() 
 Return width of longest line.
Bool_t Search(const char *string, Bool_t direction, Bool_t caseSensitive) 
 Search for string in text. If direction is true search forward.
 Returns true if string is found.
void SetFont(FontStruct_t font) 
 Changes text entry font.
Long_t ToScrYCoord(Long_t yCoord) 
 Convert line number to screen coordinate.
Long_t ToScrXCoord(Long_t xCoord, Long_t line) 
 Convert column number in specified line to screen coordinate.
Long_t ToObjYCoord(Long_t yCoord) 
 Convert y screen coordinate to line number.
Long_t ToObjXCoord(Long_t xCoord, Long_t line) 
 Convert x screen coordinate to column in specified line.
void Clear(Option_t *) 
 Clear text view widget.
Bool_t LoadFile(const char *filename, Long_t startpos, Long_t length) 
 Load a file in the text view widget. Return false in case file does not
 exist.
Bool_t LoadBuffer(const char *txtbuf) 
 Load text from a text buffer. Return false in case of failure.
Bool_t Copy() 
 Copy selected text to clipboard.
Bool_t SelectAll() 
 Select all text in the viewer.
void DrawRegion(Int_t x, Int_t y, UInt_t w, UInt_t h) 
 Draw lines in exposed region.
Bool_t HandleButton(Event_t *event) 
 Handle mouse button event in text view widget.
Bool_t HandleSelectionRequest(Event_t *event) 
 Handle request to send current clipboard contents to requestor window.
void Mark(Long_t xPos, Long_t yPos) 
 Mark a text region from xPos to yPos.
void UnMark() 
 Clear marked region.
void AdjustWidth() 
 Adjust widget width to longest line.



Inline Functions

             Bool_t IsSaved()
             Bool_t Copy()
             Long_t ReturnHeighestColHeight()
             Long_t ReturnLineLength(Long_t line)
             Long_t ReturnLongestLine()
             Long_t ReturnLineCount()
            TGText* GetText() const
               void DataChanged()
            TClass* Class()
            TClass* IsA() const
               void ShowMembers(TMemberInspector& insp, char* parent)
               void Streamer(TBuffer& b)
               void StreamerNVirtual(TBuffer& b)
         TGTextView TGTextView(TGTextView&)

Author: Fons Rademakers 1/7/2000
Last update: root/gui:$Name: $:$Id: TGTextView.cxx,v 1.11 2000/10/22 19:28:58 rdm Exp $
Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *

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