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/***************************************************************************
*
* swoptfilter.h - Implenetation of SWOptionFilter
*
* $Id: swoptfilter.h 2980 2013-09-14 21:51:47Z scribe $
*
* Copyright 1998 CrossWire Bible Society (http://www.crosswire.org)
* CrossWire Bible Society
* P. O. Box 2528
* Tempe, AZ 85280-2528
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation version 2.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
*/
#ifndef SWOPTFILTER_H
#define SWOPTFILTER_H
#include <swfilter.h>
#include <swbuf.h>
#include <list>
SWORD_NAMESPACE_START
/**
* The type definitoin for option types
*/
typedef std::list < SWBuf > StringList;
/** Base class for all option filters.
*/
class SWDLLEXPORT SWOptionFilter : public virtual SWFilter {
protected:
SWBuf optionValue;
const char *optName;
const char *optTip;
const StringList *optValues;
bool option;
bool isBooleanVal;
public:
SWOptionFilter();
SWOptionFilter(const char *oName, const char *oTip, const StringList *oValues);
virtual ~SWOptionFilter();
/** many options are simple Off/On boolean type, and frontends may wish to show these
* with checkmarks or the like to the end user. This is a convenience method
* to allow a frontend to check if this filter has only Off/On values
*/
bool isBoolean() { return isBooleanVal; }
/** gets the name of the option of this filter
* @return option name
*/
virtual const char *getOptionName() { return optName; }
/** gets a short explanation of the option of this filter;
* it could be presented to the user in frontend programs
* @return option tip/explanation
*/
virtual const char *getOptionTip() { return optTip; }
/** returns a list of the possible option values
*
* @return list of option values
*/
virtual StringList getOptionValues() { return *optValues; }
/** @return The value of the current option.
*/
virtual const char *getOptionValue();
/** sets the value of the option of this filter,
* e.g maybe a strong's filter mioght be set to "on" / "off" -
* that would mean to show or not to show the strongs in the text,
* see also getOptionValues()
* @param ival the new option value
*/
virtual void setOptionValue(const char *ival);
};
SWORD_NAMESPACE_END
#endif
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