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564 lines
20 KiB
564 lines
20 KiB
/***************************************************************************
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khexedit.h - description
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-------------------
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begin : Die Mai 13 2003
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copyright : (C) 2003 by Friedrich W. H. Kossebau
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email : Friedrich.W.H@Kossebau.de
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***************************************************************************/
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/***************************************************************************
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License version 2 as published by the Free Software Foundation. *
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* *
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***************************************************************************/
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#ifndef KHE_KHEXEDIT_H
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#define KHE_KHEXEDIT_H
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// qt specific
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#include <tqclipboard.h>
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// lib specific
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// #include "khe.h"
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#include "khexedit_export.h"
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#include "kcolumnsview.h"
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class TQTimer;
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namespace KHE
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{
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class KCoordRange;
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class KDataBuffer;
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class KCharColumn;
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class KValueColumn;
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class TDEBufferColumn;
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class KOffsetColumn;
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class KBorderColumn;
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class TDEBufferCursor;
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class TDEBufferLayout;
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class TDEBufferRanges;
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class KController;
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class KTabController;
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class KNavigator;
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class KValueEditor;
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class KCharEditor;
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class TDEBufferDrag;
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class KCursor;
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class KCharCodec;
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class KHexEditPrivate;
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/** the main widget
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*
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* The functions split up in helper functions and those that are complete.
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*
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* Complete functions can be called from the outside and leave the widget in
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* a consistent state. They care for exceptions so one can safely call them in all
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* situations (like empty buffer, cursor behind end etc.)
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*
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* Helper functions do only partial tasks and need to be completed. They often do not
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* check for exceptions so one has to care for this.
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*
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*@author Friedrich W. H. Kossebau
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*/
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class KHEXEDIT_EXPORT KHexEdit : public KColumnsView
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{
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friend class KTabController;
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friend class KNavigator;
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friend class KEditor;
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friend class KValueEditor;
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friend class KCharEditor;
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Q_OBJECT
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TQ_ENUMS( KResizeStyle KCoding )
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TQ_PROPERTY( bool OverwriteMode READ isOverwriteMode WRITE setOverwriteMode )
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TQ_PROPERTY( bool OverwriteOnly READ isOverwriteOnly WRITE setOverwriteOnly )
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TQ_PROPERTY( bool Modified READ isModified WRITE setModified DESIGNABLE false )
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TQ_PROPERTY( bool ReadOnly READ isReadOnly WRITE setReadOnly )
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TQ_PROPERTY( int NoOfBytesPerLine READ noOfBytesPerLine WRITE setNoOfBytesPerLine )
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TQ_PROPERTY( bool TabChangesFocus READ tabChangesFocus WRITE setTabChangesFocus )
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//TQ_PROPERTY( bool hasSelectedData READ hasSelectedData )
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//TQ_PROPERTY( TQByteArray SelectedData READ selectedData )
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TQ_PROPERTY( KResizeStyle ResizeStyle READ resizeStyle WRITE setResizeStyle )
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TQ_PROPERTY( int StartOffset READ startOffset WRITE setStartOffset )
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TQ_PROPERTY( int FirstLineOffset READ firstLineOffset WRITE setFirstLineOffset )
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//_PROPERTY( int undoDepth READ undoDepth WRITE setUndoDepth )
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//_PROPERTY( bool undoRedoEnabled READ isUndoRedoEnabled WRITE setUndoRedoEnabled )
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// value column
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TQ_PROPERTY( KCoding Coding READ coding WRITE setCoding )
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TQ_PROPERTY( int ByteSpacingWidth READ byteSpacingWidth WRITE setByteSpacingWidth )
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TQ_PROPERTY( int NoOfGroupedBytes READ noOfGroupedBytes WRITE setNoOfGroupedBytes )
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TQ_PROPERTY( int GroupSpacingWidth READ groupSpacingWidth WRITE setGroupSpacingWidth )
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TQ_PROPERTY( int BinaryGapWidth READ binaryGapWidth WRITE setBinaryGapWidth )
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// char column
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TQ_PROPERTY( bool ShowUnprintable READ showUnprintable WRITE setShowUnprintable )
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TQ_PROPERTY( TQChar SubstituteChar READ substituteChar WRITE setSubstituteChar )
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public:
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enum KResizeStyle { NoResize=0, LockGrouping=1, FullSizeUsage=2, MaxResizeStyleId=0xFF };
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enum KCoding { HexadecimalCoding=0, DecimalCoding=1, OctalCoding=2, BinaryCoding=3, MaxCodingId=0xFFFF };
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enum KEncoding { LocalEncoding=0, ISO8859_1Encoding=1, EBCDIC1047Encoding=2,
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StartOfOwnEncoding=0x8000, MaxEncodingId=0xFFFF };
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enum TDEBufferColumnId { ValueColumnId=1, CharColumnId=2 };
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public:
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KHexEdit( KDataBuffer *Buffer = 0, TQWidget *Parent = 0, const char *Name = 0, WFlags F = 0 );
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virtual ~KHexEdit();
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public: // KColumnsView API
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virtual void drawContents( TQPainter *p, int cx, int cy, int cw, int ch );
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public: // TQWidget API
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// void focusInEvent( TQFocusEvent *FocusEvent ); // TODO: why don't these work?
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// void focusOutEvent( TQFocusEvent *FocusEvent );
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virtual bool eventFilter( TQObject *O, TQEvent *E );
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virtual TQSize sizeHint() const;
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virtual TQSize minimumSizeHint() const;
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public: // value access
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/** returns the index of the cursor position */
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int cursorPosition() const;
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/***/
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bool isCursorBehind() const;
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TDEBufferColumnId cursorColumn() const;
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bool isOverwriteMode() const;
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bool isOverwriteOnly() const;
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bool isReadOnly() const;
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bool isModified() const;
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bool tabChangesFocus() const;
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KResizeStyle resizeStyle() const;
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int noOfBytesPerLine() const;
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int startOffset() const;
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int firstLineOffset() const;
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bool offsetColumnVisible() const;
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int visibleBufferColumns() const;
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// value column
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KCoding coding() const;
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int/*KPixelX*/ byteSpacingWidth() const;
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int noOfGroupedBytes() const;
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int/*KPixelX*/ groupSpacingWidth() const;
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int/*KPixelX*/ binaryGapWidth() const;
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// char column
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/** reports if "unprintable" chars (value<32) are displayed in the char column
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* with their original character. Default is false
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* @return @c true if original chars are displayed, otherwise @c false
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*/
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bool showUnprintable() const;
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/** gives the used substitute character for "unprintable" chars, default is '.'
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* @return substitute character
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*/
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TQChar substituteChar() const;
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/** returns the actually used undefined character for "undefined" chars, default is '?' */
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TQChar undefinedChar() const;
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/**
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* @return encoding used in the char column
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*/
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KEncoding encoding() const;
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/**
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* @return name of the encoding used in the char column
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*/
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const TQString &encodingName() const;
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public: // logic value service
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/** calculates the number of bytes per line that fit into a widget with the given size
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* tests whether a vertical scroll bar is needed at all or not due to the given width
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* takes the frame width into account
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* @param TestSize Size the widget might have
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* @return number of bytes per line that fit into a widget with the given size
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*/
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int fittingBytesPerLine( const TQSize &TestSize ) const;
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/** detects the index of the byte at the given point
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* @param Point in viewport coordinate system
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* @return index of the byte that covers the point
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*/
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int indexByPoint(const TQPoint &Point ) const;
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public:
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/** returns true if there is a selected range in the array */
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bool hasSelectedData() const;
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/**
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* @return deep copy of the selected data
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*/
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TQByteArray selectedData() const;
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KSection selection() const;
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public: // modification access
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/** puts the cursor to the position of index, handles all drawing
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* @param Index
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*/
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void setCursorPosition( int Index, bool Behind=false );
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/** puts the cursor in the column at the pos of Point (in absolute coord), does not handle the drawing */
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void placeCursor( const TQPoint &Point );
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/***/
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void setCursorColumn( TDEBufferColumnId );
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// void repaintByte( int row, int column, bool Erase = true );
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// void updateByte( int row, int column );
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// void ensureByteVisible( int row, int column );
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public slots:
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/** */
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void setDataBuffer( KDataBuffer *B );
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/** switches the Offset column on/off */
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void toggleOffsetColumn( bool Visible );
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/** */
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void showBufferColumns( int Columns );
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/** scrolls the view as much as needed to have the cursor fully visible */
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void ensureCursorVisible();
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// setting parameters
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/** sets the resizestyle for the value column. Default is KHE::FullSizeUsage */
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void setResizeStyle( KResizeStyle Style );
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/** sets whether the widget is readonly or not, Default is true.
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* If the databuffer which is worked on can't be written the widget stays readonly
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*/
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virtual void setReadOnly( bool b );
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/** sets whether the widget is overwriteonly or not. Default is false. */
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virtual void setOverwriteOnly( bool b );
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/** sets whether the widget is in overwrite mode or not. Default is true. */
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virtual void setOverwriteMode( bool b );
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/** sets whether the data should be treated modified or not */
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virtual void setModified( bool b );
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/** sets whether on a tab key there should be switched from the char column back to the value column
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* or be switched to the next focusable widget. Default is false
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*/
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virtual void setTabChangesFocus( bool b = true );
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//
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/** sets the number of bytes per line, switching the resize style to KHE::NoResize */
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virtual void setNoOfBytesPerLine( int NoCpL );
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/** sets absolut offset of the data */
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void setStartOffset( int SO );
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/** sets offset of the char in the upper left corner */
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void setFirstLineOffset( int FLO );
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// value column parameters
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/** sets the spacing between the bytes in the value column
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* @param BSW spacing between the bytes in pixels
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* default is 3
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*/
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void setByteSpacingWidth( int/*KPixelX*/ BSW ) ;
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/** sets the number of grouped bytes in the value column
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* @param NoGB numbers of grouped bytes, 0 means no grouping
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* default is 4
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*/
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void setNoOfGroupedBytes( int NoGB );
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/** sets the spacing between the groups of bytes in the value column
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* @param GSW spacing between the groups in pixels
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* default is 9
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*/
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void setGroupSpacingWidth( int/*KPixelX*/ GSW );
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/** sets the spacing in the middle of a binary byte in the value column
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* @param BinaryGapW spacing in the middle of a binary in pixels
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* returns true if there was a change
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*/
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void setBinaryGapWidth( int BGW );
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/** sets the spacing in the value column
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* @param ByteSpacingWidth spacing between the bytes in pixels
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* @param NoOfGroupedBytes numbers of grouped bytes, 0 means no grouping
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* @param GroupSpacingWidth spacing between the groups in pixels
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* Default is 4 for NoOfGroupedBytes
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*/
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void setBufferSpacing( KPixelX ByteSpacingWidth, int NoOfGroupedBytes = 0, KPixelX GroupSpacingWidth = 0 );
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/** sets the format of the value column. Default is KHE::HexadecimalCoding */
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void setCoding( KCoding C );
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// char column parameters
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/** sets whether "unprintable" chars (>32) should be displayed in the char column
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* with their corresponding character.
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* @param SU
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* returns true if there was a change
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*/
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void setShowUnprintable( bool SU = true );
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/** sets the substitute character for "unprintable" chars
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* returns true if there was a change
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*/
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void setSubstituteChar( TQChar SC );
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/** sets the undefined character for "undefined" chars
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* returns true if there was a change
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*/
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void setUndefinedChar( TQChar UC );
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/** sets the encoding of the char column. Default is KHE::LocalEncoding.
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* If the encoding is not available the format will not be changed. */
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void setEncoding( KEncoding C );
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/** sets the encoding of the char column. Default is KHE::LocalEncoding.
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* If the encoding is not available the format will not be changed.
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* @param Encoding name of the encoding
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*/
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void setEncoding( const TQString& Encoding );
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// interaction
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/** de-/selects all data */
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void selectAll( bool select );
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/** de-/selects all data */
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void select( KSection S );
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/** selects word at index, returns true if there is one */
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bool selectWord( /*unsigned*/ int Index /*, Chartype*/ );
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/** removes the selected data, takes care of the cursor */
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virtual void removeSelectedData();
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/** inserts */
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virtual void insert( const TQByteArray &D );
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// clipboard interaction
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virtual void copy();
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virtual void cut();
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virtual void paste();
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// zooming
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virtual void zoomIn( int PointInc );
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virtual void zoomIn();
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virtual void zoomOut( int PointInc );
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virtual void zoomOut();
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virtual void zoomTo( int PointSize );
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virtual void unZoom();
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// cursor control
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/** we have focus again, start the timer */
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virtual void startCursor();
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/** we lost focus, stop the timer */
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virtual void stopCursor();
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/** simply pauses any blinking, i.e. ignores any calls to blinkCursor */
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virtual void pauseCursor( bool LeaveEdit = false );
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/** undoes pauseCursor */
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virtual void unpauseCursor();
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signals:
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/** Index of the byte that was clicked */
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void clicked( int Index );
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/** Index of the byte that was double clicked */
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void doubleClicked( int Index );
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void cursorPositionChanged( int Index );
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/** selection has changed */
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void selectionChanged( int StartIndex, int EndIndex );
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/** there is a cut available or not */
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void cutAvailable( bool Really );
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/** there is a copy available or not */
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void copyAvailable( bool Really );
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/** there has been a change to the buffer */
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void bufferChanged( int StartIndex, int EndIndex );
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protected: // TQWidget API
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virtual void keyPressEvent( TQKeyEvent *KeyEvent );
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virtual void resizeEvent( TQResizeEvent *ResizeEvent );
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virtual void showEvent( TQShowEvent *e );
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protected: // TQScrollView API
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virtual void contentsMousePressEvent( TQMouseEvent *e );
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virtual void contentsMouseReleaseEvent( TQMouseEvent * e );
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virtual void contentsMouseMoveEvent( TQMouseEvent *e );
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virtual void contentsMouseDoubleClickEvent( TQMouseEvent * e );
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virtual void contentsDragEnterEvent( TQDragEnterEvent *e );
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virtual void contentsDragMoveEvent( TQDragMoveEvent *e );
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virtual void contentsDragLeaveEvent( TQDragLeaveEvent * );
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virtual void contentsDropEvent( TQDropEvent *e );
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virtual void contentsWheelEvent( TQWheelEvent *e );
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// virtual void contentsContextMenuEvent( TQContextMenuEvent *e );
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protected: // KColumnsView API
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virtual void setNoOfLines( int NewNoOfLines );
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protected: // element accessor functions
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KValueColumn& valueColumn();
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KCharColumn& charColumn();
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TDEBufferColumn& activeColumn();
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TDEBufferColumn& inactiveColumn();
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const KValueColumn& valueColumn() const;
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const KCharColumn& charColumn() const;
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const TDEBufferColumn& activeColumn() const;
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const TDEBufferColumn& inactiveColumn() const;
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protected: // atomic ui operations
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/** handles screen update in case of a change to any of the width sizes
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*/
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void updateViewByWidth();
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/** repaints all the parts that are signed as changed */
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void repaintChanged();
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protected: // drawing related operations
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/** recreates the cursor pixmaps and paints active and inactive cursors if doable */
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void updateCursor();
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void createCursorPixmaps();
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void pointPainterToCursor( TQPainter &Painter, const TDEBufferColumn &Column ) const;
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/** draws the blinking cursor or removes it */
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void paintActiveCursor( bool CursorOn );
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void paintInactiveCursor( bool CursorOn );
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void paintLine( TDEBufferColumn *C, int Line, KSection Positions );
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protected: // partial operations
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void handleMouseMove( const TQPoint& Point );
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TDEBufferDrag *dragObject( TQWidget *Parent = 0 ) const;
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void pasteFromSource( TQMimeSource *Source );
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/** removes the section from the databuffer and updates all affected values */
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KSection removeData( KSection Indizes );
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/** sets ChangedRange to the range of VisibleRange that is actually changed
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* @return true if there was a change within the visible range
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*/
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bool hasChanged( const KCoordRange &VisibleRange, KCoordRange *ChangedRange ) const;
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void handleInternalDrag( TQDropEvent *e );
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protected:
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/** recalcs all dependant values with the actual NoOfBytesPerLine */
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void adjustToLayoutNoOfBytesPerLine();
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/** recalcs a layout due to the resize style that fits into the view size
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* and updates the dependant values
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*/
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void adjustLayoutToSize();
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/** */
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void updateLength();
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/** calls updateContent for the Column */
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void updateColumn( KColumn &Column );
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protected slots:
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/** gets called by the cursor blink timer */
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void blinkCursor();
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/** gets called by the scroll timer (for mouse selection) */
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void autoScrollTimerDone();
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/** */
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void clipboardChanged();
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/** */
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void startDrag();
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protected slots: // TQWidget API
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virtual void fontChange( const TQFont &OldFont );
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protected:
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/** Buffer with the data */
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KDataBuffer *DataBuffer;
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/** holds the logical layout */
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TDEBufferLayout *BufferLayout;
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/** */
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TDEBufferCursor *BufferCursor;
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/** */
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TDEBufferRanges *BufferRanges;
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protected:
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KOffsetColumn *OffsetColumn;
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KBorderColumn *FirstBorderColumn;
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KValueColumn *ValueColumn;
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KBorderColumn *SecondBorderColumn;
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KCharColumn *CharColumn;
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/** points to the column with keyboard focus */
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TDEBufferColumn *ActiveColumn;
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/** points to the column without keyboard focus (if there is) */
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TDEBufferColumn *InactiveColumn;
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/** the actual input controller */
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KController *Controller;
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/** */
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KTabController *TabController;
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/** */
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KNavigator *Navigator;
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/** */
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KValueEditor *ValueEditor;
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/** */
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KCharEditor *CharEditor;
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protected:
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/** Timer that controls the blinking of the cursor */
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TQTimer *CursorBlinkTimer;
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/** Timer that triggers ensureCursorVisible function calls */
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TQTimer *ScrollTimer;
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/* TQTimer *ChangeIntervalTimer, */
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/** Timer to start a drag */
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TQTimer *DragStartTimer;
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/** timer to measure whether the time between a double click and the following counts for a tripleclick */
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TQTimer *TrippleClickTimer;
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/** object to store the blinking cursor pixmaps */
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KCursor *CursorPixmaps;
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/** */
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KCharCodec *Codec;
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protected:
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/** point at which the current double click happended (used by TrippleClick) */
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TQPoint DoubleClickPoint;
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/** line in which the current double click happended (used by TrippleClick) */
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int DoubleClickLine;
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/** point at which the current dragging started */
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TQPoint DragStartPoint;
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/** */
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TQClipboard::Mode ClipboardMode;
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/** font size as set by user (used for zooming) */
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int DefaultFontSize;
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protected: // parameters
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/** style of resizing */
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KResizeStyle ResizeStyle;
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/** */
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KEncoding Encoding;
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/** flag whether the widget is set to readonly. Cannot override the databuffer's setting, of course. */
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bool ReadOnly:1;
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/** flag if only overwrite is allowed */
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bool OverWriteOnly:1;
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/** flag if overwrite mode is active */
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bool OverWrite:1;
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/** flag if a mouse button is pressed */
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bool MousePressed:1;
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/** flag if a double click is happening */
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bool InDoubleClick:1;
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/** flag if a Drag'n'Drop is happening */
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bool InDnD:1;
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/** flag if a drag might have started */
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bool DragStartPossible:1;
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/** flag if the cursor should be invisible */
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bool CursorPaused:1;
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/** flag if the cursor is visible */
|
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bool BlinkCursorVisible:1;
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/** flag whether the font is changed due to a zooming */
|
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bool InZooming:1;
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private:
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/** the binary compatibility saving helper */
|
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KHexEditPrivate* d;
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private: // Disabling copy constructor and operator= - not useful
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KHexEdit( const KHexEdit & );
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KHexEdit &operator=( const KHexEdit & );
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};
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inline const KValueColumn& KHexEdit::valueColumn() const { return *ValueColumn; }
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inline const KCharColumn& KHexEdit::charColumn() const { return *CharColumn; }
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inline const TDEBufferColumn& KHexEdit::activeColumn() const { return *ActiveColumn; }
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inline const TDEBufferColumn& KHexEdit::inactiveColumn() const { return *InactiveColumn; }
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inline KValueColumn& KHexEdit::valueColumn() { return *ValueColumn; }
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inline KCharColumn& KHexEdit::charColumn() { return *CharColumn; }
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inline TDEBufferColumn& KHexEdit::activeColumn() { return *ActiveColumn; }
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inline TDEBufferColumn& KHexEdit::inactiveColumn() { return *InactiveColumn; }
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}
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#endif
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