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editors.h

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/*
 * editors.h
 *
 * Turbo Vision - Version 2.0
 *
 * Copyright (c) 1994 by Borland International
 * All Rights Reserved.
 *
 * Modified by Sergio Sigala <sergio@sigala.it>
 */

#if !defined( __EDIT_COMMAND_CODES )
#define __EDIT_COMMAND_CODES

const
  int ufUpdate = 0x01,
  ufLine   = 0x02,
  ufView   = 0x04;

const
  int smExtend = 0x01,
  smDouble = 0x02;

const unsigned
  sfSearchFailed = UINT_MAX;

const
  int cmFind        = 82,
  cmReplace     = 83,
  cmSearchAgain = 84;

const
  int cmCharLeft    = 500,
  cmCharRight   = 501,
  cmWordLeft    = 502,
  cmWordRight   = 503,
  cmLineStart   = 504,
  cmLineEnd     = 505,
  cmLineUp      = 506,
  cmLineDown    = 507,
  cmPageUp      = 508,
  cmPageDown    = 509,
  cmTextStart   = 510,
  cmTextEnd     = 511,
  cmNewLine     = 512,
  cmBackSpace   = 513,
  cmDelChar     = 514,
  cmDelWord     = 515,
  cmDelStart    = 516,
  cmDelEnd      = 517,
  cmDelLine     = 518,
  cmInsMode     = 519,
  cmStartSelect = 520,
  cmHideSelect  = 521,
  cmIndentMode  = 522,
  cmUpdateTitle = 523;

const int
  edOutOfMemory   = 0,

  edReadError     = 1,

  edWriteError    = 2,

  edCreateError   = 3,

  edSaveModify    = 4,

  edSaveUntitled  = 5,

  edSaveAs        = 6,

  edFind          = 7,

  edSearchFailed  = 8,

  edReplace       = 9,

  edReplacePrompt = 10;

const int
  efCaseSensitive   = 0x0001,

  efWholeWordsOnly  = 0x0002,

  efPromptOnReplace = 0x0004,

  efReplaceAll      = 0x0008,

  efDoReplace       = 0x0010,

  efBackupFiles     = 0x0100;

const
  int maxLineLength = 256;

#endif  // __EDIT_COMMAND_CODES

typedef ushort (*TEditorDialog)( int, ... );

ushort defEditorDialog( int dialog, ... );

#if defined( Uses_TIndicator ) && !defined( __TIndicator )
#define __TIndicator

class TRect;

class TIndicator : public TView
{
public:
    TIndicator( const TRect& );
    virtual void draw();
    virtual TPalette& getPalette() const;
    virtual void setState( ushort, Boolean );
    void setValue( const TPoint& aLocation, Boolean aModified );
    static char dragFrame;
    static char normalFrame;
protected:
    TPoint location;
    Boolean modified;
private:
    virtual const char *streamableName() const
        { return name; }
protected:
    TIndicator( StreamableInit );
public:
    static const char * const name;
    static TStreamable *build();
};

inline ipstream& operator >> ( ipstream& is, TIndicator& cl )
    { return is >> (TStreamable&)cl; }
inline ipstream& operator >> ( ipstream& is, TIndicator*& cl )
    { return is >> (void *&)cl; }

inline opstream& operator << ( opstream& os, TIndicator& cl )
    { return os << (TStreamable&)cl; }
inline opstream& operator << ( opstream& os, TIndicator* cl )
    { return os << (TStreamable *)cl; }

#endif  // Uses_TIndicator


#if defined( Uses_TEditor ) && !defined( __TEditor )
#define __TEditor

class TRect;
class TScrollBar;
class TIndicator;
class TEvent;

class TEditor : public TView
{
public:
    TEditor( const TRect& bounds, TScrollBar *aHScrollBar,
        TScrollBar *aVScrollBar, TIndicator *aIndicator, uint aBufSize );
    virtual ~TEditor();
    virtual void shutDown();
    char bufChar( uint p );
    uint bufPtr( uint p );
    virtual void changeBounds( const TRect& bounds );
    virtual void convertEvent( TEvent& event );
    Boolean cursorVisible();
    void deleteSelect();
    virtual void doneBuffer();
    virtual void draw();
    virtual TPalette& getPalette() const;
    virtual void handleEvent( TEvent& event );
    virtual void initBuffer();
    Boolean insertBuffer( char *p, uint offset, uint length,
        Boolean allowUndo, Boolean selectText );
    virtual Boolean insertFrom( TEditor *editor );
    Boolean insertText( const void *text, uint length, Boolean selectText );
    void scrollTo( int x, int y );
    Boolean search( const char *findStr, ushort opts );
    virtual Boolean setBufSize( uint newSize );
    void setCmdState( ushort command, Boolean enable );
    void setSelect( uint newStart, uint newEnd, Boolean curStart );
    virtual void setState( ushort aState, Boolean enable );
    void trackCursor( Boolean center );
    void undo();
    virtual void updateCommands();
    virtual Boolean valid( ushort command );
    uint charPos( uint p, uint target );
    uint charPtr( uint p, uint target );
    Boolean clipCopy();
    void clipCut();
    void clipPaste();
    void deleteRange( uint startPtr, uint endPtr, Boolean delSelect );
    void doUpdate();
    void doSearchReplace();
    void drawLines( int y, uint count, uint linePtr );
    void formatLine(void *buff, uint linePtr, int x, ushort color);
    void find();
    uint getMousePtr( TPoint m );
    Boolean hasSelection();
    void hideSelect();
    Boolean isClipboard();
    uint lineEnd( uint p );
    uint lineMove( uint p, int count );
    uint lineStart( uint p );
    void lock();
    void newLine();
    uint nextChar( uint p );
    uint nextLine( uint p );
    uint nextWord( uint p );
    uint prevChar( uint p );
    uint prevLine( uint p );
    uint prevWord( uint p );
    void replace();
    void setBufLen( uint length );
    void setCurPtr( uint p, uchar selectMode );
    void startSelect();
    void toggleInsMode();
    void unlock();
    void update( uchar aFlags );
    void checkScrollBar( const TEvent& event, TScrollBar *p, int& d );
    TScrollBar *hScrollBar;
    TScrollBar *vScrollBar;
    TIndicator *indicator;
    char *buffer;
    uint bufSize;
    uint bufLen;
    uint gapLen;
    uint selStart;
    uint selEnd;
    uint curPtr;
    TPoint curPos;
    TPoint delta;
    TPoint limit;
    int drawLine;
    uint drawPtr;
    uint delCount;
    uint insCount;
    Boolean isValid;
    Boolean canUndo;
    Boolean modified;
    Boolean selecting;
    Boolean overwrite;
    Boolean autoIndent;
    static TEditorDialog editorDialog;
    static ushort editorFlags;
    static char findStr[maxFindStrLen];
    static char replaceStr[maxReplaceStrLen];
    static TEditor * clipboard;
    uchar lockCount;
    uchar updateFlags;
    int keyState;
private:
    virtual const char *streamableName() const
        { return name; }
protected:
    TEditor( StreamableInit );
    virtual void write( opstream& os );
    virtual void *read( ipstream& is );
public:
    static const char * const name;
    static TStreamable *build();
};

inline ipstream& operator >> ( ipstream& is, TEditor& cl )
    { return is >> (TStreamable&)cl; }
inline ipstream& operator >> ( ipstream& is, TEditor*& cl )
    { return is >> (void *&)cl; }

inline opstream& operator << ( opstream& os, TEditor& cl )
    { return os << (TStreamable&)cl; }
inline opstream& operator << ( opstream& os, TEditor* cl )
    { return os << (TStreamable *)cl; }

#endif  // Uses_TEditor

#if defined( Uses_TMemo ) && !defined( __TMemo )
#define __TMemo

class TEvent;

struct TMemoData
{
    ushort length;
    char buffer[1];
};

class TMemo : public TEditor
{
public:
    TMemo( const TRect& bounds, TScrollBar *aHScrollBar,
        TScrollBar *aVScrollBar, TIndicator *aIndicator, uint aBufSize );
    virtual void getData( void *rec );
    virtual void setData( void *rec );
    virtual ushort dataSize();
    virtual TPalette& getPalette() const;
    virtual void handleEvent( TEvent& );
private:
    virtual const char *streamableName() const
        { return name; }
protected:
    TMemo( StreamableInit );
    virtual void write( opstream& );
    virtual void *read( ipstream& );
public:
    static const char * const name;
    static TStreamable *build();
};

inline ipstream& operator >> ( ipstream& is, TMemo& cl )
    { return is >> (TStreamable&)cl; }
inline ipstream& operator >> ( ipstream& is, TMemo*& cl )
    { return is >> (void *&)cl; }

inline opstream& operator << ( opstream& os, TMemo& cl )
    { return os << (TStreamable&)cl; }
inline opstream& operator << ( opstream& os, TMemo* cl )
    { return os << (TStreamable *)cl; }

#endif  // Uses_TMemo


#if defined( Uses_TFileEditor ) && !defined( __TFileEditor )
#define __TFileEditor

#include <limits.h>

class TRect;
class TScrollBar;
class TIndicator;
class TEvent;

class TFileEditor : public TEditor
{
public:
    char fileName[PATH_MAX];
    TFileEditor( const TRect& bounds,
                 TScrollBar *aHScrollBar,
                 TScrollBar *aVScrollBar,
                 TIndicator *aIndicator,
                 const char *aFileName
               );
    virtual void doneBuffer();
    virtual void handleEvent( TEvent& );
    virtual void initBuffer();
    Boolean loadFile();
    Boolean save();
    Boolean saveAs();
    Boolean saveFile();
    virtual Boolean setBufSize( uint newSize );
    virtual void shutDown();
    virtual void updateCommands();
    virtual Boolean valid( ushort );
private:
    static const char * backupExt;
    virtual const char *streamableName() const
        { return name; }
protected:
    TFileEditor( StreamableInit );
    virtual void write( opstream& );
    virtual void *read( ipstream& );
public:
    static const char * const name;
    static TStreamable *build();
};

inline ipstream& operator >> ( ipstream& is, TFileEditor& cl )
    { return is >> (TStreamable&)cl; }
inline ipstream& operator >> ( ipstream& is, TFileEditor*& cl )
    { return is >> (void *&)cl; }

inline opstream& operator << ( opstream& os, TFileEditor& cl )
    { return os << (TStreamable&)cl; }
inline opstream& operator << ( opstream& os, TFileEditor* cl )
    { return os << (TStreamable *)cl; }

#endif  // Uses_TFileEditor


#if defined( Uses_TEditWindow ) && !defined( __TEditWindow )
#define __TEditWindow

class TFileEditor;

class TEditWindow : public TWindow
{
public:
    TEditWindow( const TRect& bounds, const char *fileName, int aNumber );
    virtual void close();
    virtual const char *getTitle( short );
    virtual void handleEvent( TEvent& event );
    virtual void sizeLimits( TPoint& min, TPoint& max );
    TFileEditor *editor;
private:
    static const char * clipboardTitle;
    static const char * untitled;
    virtual const char *streamableName() const
        { return name; }
protected:
    TEditWindow( StreamableInit );
    virtual void write( opstream& );
    virtual void *read( ipstream& );
public:
    static const char * const name;
    static TStreamable *build();
};

inline ipstream& operator >> ( ipstream& is, TEditWindow& cl )
    { return is >> (TStreamable&)cl; }
inline ipstream& operator >> ( ipstream& is, TEditWindow*& cl )
    { return is >> (void *&)cl; }

inline opstream& operator << ( opstream& os, TEditWindow& cl )
    { return os << (TStreamable&)cl; }
inline opstream& operator << ( opstream& os, TEditWindow* cl )
    { return os << (TStreamable *)cl; }

#endif  // Uses_TEditWindow


#if defined( Uses_TFindDialogRec ) && !defined( __TFindDialogRec )
#define __TFindDialogRec

#include <string.h>

struct TFindDialogRec
{
    TFindDialogRec( const char *str, ushort flgs )
        {
        strcpy( find, str );
        options = flgs;
        }
    char find[maxFindStrLen];
    ushort options;
};

#endif  // Uses_TFindDialogRec

#if defined( Uses_TReplaceDialogRec ) && !defined( __TReplaceDialogRec )
#define __TReplaceDialogRec

#include <string.h>

struct TReplaceDialogRec
{
    TReplaceDialogRec( const char *str, const char *rep, ushort flgs )
        {
        strcpy( find, str );
        strcpy( replace, rep );
        options = flgs;
        }
    char find[maxFindStrLen];
    char replace[maxReplaceStrLen];
    ushort options;
};

#endif  // Uses_TReplaceDialogRec

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