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/* ====================================================================
* Copyright (c) 2003-2006, Martin Hauner
* http://subcommander.tigris.org
*
* Subcommander is licensed as described in the file doc/COPYING, which
* you should have received as part of this distribution.
* ====================================================================
*/
#ifndef _TEXTMODEL_H
#define _TEXTMODEL_H
// sc
#include "BlockInfo.h"
#include "LineEnd.h"
#include "util/types.h"
class Line;
class Cursor;
namespace sc
{
class String;
}
class TextModel
{
public:
virtual ~TextModel() {}
virtual const sc::String& getSourceName() = 0;
virtual const Line& getLine( sc::Size lineNr ) = 0;
virtual BlockInfo getBlockInfo( int block ) = 0;
virtual sc::Size getLineCnt() = 0;
virtual sc::Size getColumnCnt() = 0;
virtual LineEnd getLineEnd() = 0;
virtual unsigned int getTabWidth() = 0;
/** @name block manipulation.*/
//@{
virtual int replaceBlock( int block, TextModel* src ) = 0;
//@}
/** @name cursor related methods. */
//@{
virtual const Cursor& getCursor() = 0;
virtual const Cursor& getCursor2() = 0;
virtual void setCursor( const Cursor& c ) = 0;
virtual void setCursor2( const Cursor& c ) = 0;
virtual Cursor moveCursorRight( bool moveC2 ) = 0;
virtual Cursor moveCursorLeft( bool moveC2 ) = 0;
virtual Cursor moveCursorDown( bool moveC2 ) = 0;
virtual Cursor moveCursorUp( bool moveC2 ) = 0;
virtual int getLastColumn() = 0;
virtual void setLastColumn( int col ) = 0;
virtual Cursor calcNearestCursorPos( const Cursor& c ) = 0;
//@}
/** @name text manipulation. */
//@{
/** Add text at the current cursor position. If some text is highlighted
* it is replaced by the new text.
*/
virtual void addText( const sc::String& s ) = 0;
/** Remove a character left from the current cursor position (ie. backspace).
* If some text is highlighted it will be removed instead of the character.
*/
virtual void removeTextLeft() = 0;
/** Remove a character right from the current cursor position (ie. del).
* If some text is highlighted it will be removed instead of the character.
*/
virtual void removeTextRight() = 0;
/** Get the highlighted text. If there is no highlighted text the result
* string is empty.
*/
virtual sc::String getHighlightedText() = 0;
//@}
/** @name undo related methods. */
//@{
/** undo the last text manipulation. */
virtual void undo() = 0;
/** redo the last text manipulation. */
virtual void redo() = 0;
/** undo buffer is not empty. */
virtual bool hasUndo() = 0;
/** clear undo buffer. */
virtual void clearUndo() = 0;
//@}
};
#endif // _TEXTMODEL_H
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