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/***************************************************************************
byteseditinterface.h - description
-------------------
begin : Fri Sep 12 2003
copyright : (C) 2003 by Friedrich W. H. Kossebau
email : [email protected]
***************************************************************************/
/***************************************************************************
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License version 2 as published by the Free Software Foundation. *
* *
***************************************************************************/
#ifndef BYTESEDITINTERFACE_H
#define BYTESEDITINTERFACE_H
// kde specific
#include <kparts/componentfactory.h>
#include <tqwidget.h>
/**
* @short KHE (short for KHexEdit) is KDE's namespace for all things related
* to the viewing/editing of bytes.
*
* @since 3.2
*/
namespace KHE
{
/**
* @short An interface for a hex edit editor/viewer for arrays of byte
*
* \code
* KHE::BytesEditInterface *BytesEdit = KHE::bytesEditInterface( BytesEditWidget );
* \endcode
*
* It can be used in different ways:
* <ul>
* <li> as an viewer for array char* Data, sized DataSize
* \code
* BytesEdit->setData( Data, DataSize );
* BytesEdit->setReadOnly( true );
* \endcode
*
* <li> as an editor for a given array of bytes with a fixed size
* \code
* BytesEdit->setData( Data, DataSize );
* BytesEdit->setOverWriteOnly( true );
* \endcode
*
* <li> as an editor for a given array of bytes with a limited size
* \code
* BytesEdit->setData( Data, DataSize, -1, false );
* BytesEdit->setMaxDataSize( MaxDataSize );
* BytesEdit->setOverWriteMode( false );
* \endcode
*
* <li> as an editor for a new to be created array of chars, max. with MaxDataSize
* \code
* BytesEdit->setMaxDataSize( MaxDataSize );
* ...
* TQByteArray BA;
* BA.setRawData( BytesEdit->data(), BytesEdit->dataSize() );
* \endcode
* </ul>
*
* @author Friedrich W. H. Kossebau <[email protected]>
* @see createBytesEditWidget(), bytesEditInterface()
* @since 3.2
*/
class BytesEditInterface
{
public:
//static const char Name[] = "KHE::BytesEditInterface";
public: // set methods
/** hands over to the editor a new byte array.
* If there exists an old one and autodelete is set the old one gets deleted.
* @param D pointer to memory
* @param S size of used memory
* @param RS real size of the memory, -1 means S is the real size
* @param KM keep the memory on resize (RS is the maximum size)
*/
virtual void setData( char *D, int S, int RS = -1, bool KM = true ) = 0;
/** sets whether the given array should be handled read only or not. Default is false. */
virtual void setReadOnly( bool RO = true ) = 0;
/** sets the maximal size of the actual byte array. If the actual array is already larger
* it will not be modified but there can be only done non-inserting actions
* until the array's is below the limit
* If the flag KeepsMemory is set MaxDataSize is limited to the real size of the array.
* MaxDataSize == -1 means no limit.
* Default is -1.
* @param MS new maximal data size
*/
virtual void setMaxDataSize( int MS ) = 0;
/** sets whether the array should be deleted on the widget's end or if a new array is set.
* Default is false
*/
virtual void setAutoDelete( bool AD = true ) = 0;
/** switches the array */
// virtual void resetData( char *D, int S, bool Repaint ) = 0;
/** sets whether the actual memory used to store the data
* (as given by setData or in the constructor, or allocated by the class)
* should be kept on resize.
* If MaxDataSize is set and greater than the raw size of the memory
* it is limited to the raw size.
* Default is false.
*/
virtual void setKeepsMemory( bool KM = true ) = 0;
//
/** sets whether the widget is overwriteonly or not. Default is false. */
virtual void setOverwriteOnly( bool b ) = 0;
/** sets whether the widget is in overwrite mode or not. Default is true. */
virtual void setOverwriteMode( bool b ) = 0;
/** sets whether the data should be treated modified or not */
virtual void setModified( bool b ) = 0;
public: // get methods
/** @return a pointer to the actual byte array */
virtual char *data() const = 0;
/** @return the size of the actual byte array */
virtual int dataSize() const = 0;
/** @return the maximal allowed size for the byte array */
virtual int maxDataSize () const = 0;
/** @return whether autodelete is set for the byte array */
virtual bool isAutoDelete() const = 0;
/** @return @c true if the memory of the byte array is kept, otherwise @c false */
virtual bool keepsMemory() const = 0;
/** @return @c true if the edit mode is overwrite, otherwise @c false for insert mode*/
virtual bool isOverwriteMode() const = 0;
/** @return @c true if the memory of the byte array is kept, otherwise @c false */
virtual bool isOverwriteOnly() const = 0;
/** @return @c true if the ReadOnly flag is set, otherwise @c false */
virtual bool isReadOnly() const = 0;
/** @return @c true if the Modified flag is set, otherwise @c false */
virtual bool isModified() const = 0;
public: // call for action
/** tqrepaint the indizes from i1 to i2 */
virtual void tqrepaintRange( int i1, int i2 ) = 0;
};
/** tries to get the bytesedit interface of t
* @return a pointer to the interface, otherwise 0
* @author Friedrich W. H. Kossebau <[email protected]>
* @since 3.2
*/
template<class T>
inline BytesEditInterface *bytesEditInterface( T *t )
{
if( !t )
return 0;
return static_cast<BytesEditInterface*>( t->qt_cast("KHE::BytesEditInterface") );
}
/** tries to create an instance of a hexedit widget for arrays of chars (char[])
*
* Usage:
*
* \code
* #include <khexedit/byteseditinterface.h>
* #include <khexedit/valuecolumninterface.h>
* #include <khexedit/charcolumninterface.h>
* #include <khexedit/clipboardinterface.h>
* ...
*
* TQWidget *BytesEditWidget = KHE::createBytesEditWidget( this, "BytesEditWidget" );
* // is e.g. kdeutils (incl. khexedit2) installed, so a widget could be found and created?
* if( BytesEditWidget )
* {
* � // fetch the editor interface
* � KHE::BytesEditInterface *BytesEdit = KHE::bytesEditInterface( BytesEditWidget );
* � Q_ASSERT( BytesEdit ); // This should not fail!
*
* � // now use the editor.
* � BytesEdit->setData( Buffer, BufferSize, -1 );
* � BytesEdit->setMaxDataSize( BufferSize );
* � BytesEdit->setReadOnly( false );
* � BytesEdit->setAutoDelete( true );
*
* � KHE::ValueColumnInterface *ValueColumn = KHE::valueColumnInterface( BytesEditWidget );
* � if( ValueColumn )
* � {
* � � ValueColumn->setCoding( KHE::ValueColumnInterface::BinaryCoding );
* � � ValueColumn->setByteSpacingWidth( 2 );
* � � ValueColumn->setNoOfGroupedBytes( 4 );
* � � ValueColumn->setGroupSpacingWidth( 12 );
* � }
*
* � KHE::CharColumnInterface *CharColumn = KHE::charColumnInterface( BytesEditWidget );
* � if( CharColumn )
* � {
* � � CharColumn->setShowUnprintable( false );
* � � CharColumn->setSubstituteChar( '*' );
* � }
* � KHE::ClipboardInterface *Clipboard = KHE::clipboardInterface( BytesEditWidget );
* � if( Clipboard )
* � {
* � � // Yes, use BytesEditWidget, not Clipboard, because that's the TQObject, indeed hacky...
* � � connect( BytesEditWidget, TQT_SIGNAL(copyAvailable(bool)), this, TQT_SLOT(offerCopy(bool)) );
* � }
* }
* \endcode
*
* @param Parent parent widget
* @param Name identifier
* @return a pointer to the widget, otherwise 0
* @author Friedrich W. H. Kossebau <[email protected]>
* @see BytesEditInterface, ValueColumnInterface, CharColumnInterface, ZoomInterface, ClipboardInterface
* @since 3.2
*/
inline TQWidget *createBytesEditWidget( TQWidget *Parent = 0, const char *Name = 0 )
{
return KParts::ComponentFactory::createInstanceFromQuery<TQWidget>
( TQString::tqfromLatin1("KHexEdit/KBytesEdit"), TQString::null, Parent, Name );
}
}
#endif
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