138 lines
5.1 KiB
C
138 lines
5.1 KiB
C
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/***************************************************************************
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* Copyright ?2007 TWAIN Working Group:
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* Adobe Systems Incorporated, AnyDoc Software Inc., Eastman Kodak Company,
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* Fujitsu Computer Products of America, JFL Peripheral Solutions Inc.,
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* Ricoh Corporation, and Xerox Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the TWAIN Working Group nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY TWAIN Working Group ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL TWAIN Working Group BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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***************************************************************************/
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/**
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* @file TWAINContainerFix32.h
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* Fix32 Container class for negotiating capabilities.
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* @author TWAIN Working Group
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* @date April 2007
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*/
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#ifndef __CTWAINCONTAINERFIX32_H__
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#define __CTWAINCONTAINERFIX32_H__
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#include "TWAINContainer.h"
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/**
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* This class can be used for any Fix32 based TWAIN container.
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* All values are stored internally as 1/1000th of an inch. They are converted
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* as necessary when TWAIN containers are created. Any direct access will require
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* the caller to do their own conversion.
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*/
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class CTWAINContainerFix32 : public CTWAINContainer
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{
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friend class CTWAIN_UI;
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public:
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/**
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* Constructor.
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* @param[in] _unCapID Capability ID
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* @param[in] _unItemType TWAIN Type TWTY_xxxx being stored.
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* @param[in] _unGetType TWON_xxxx container
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* @param[in] _nSupportedQueries the supported querie types TWQC_xxxx
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*/
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CTWAINContainerFix32(const TW_UINT16 _unCapID,
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const TW_UINT16 _unGetType,
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const TW_INT32 _nSupportedQueries = TWQC_ALL,
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const TW_UINT16 _unGetCurrentType = TWON_ONEVALUE,
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const TW_UINT16 _unGetDefaultType = TWON_ONEVALUE);
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virtual ~CTWAINContainerFix32();
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virtual TW_HANDLE GetContainer(const TW_UINT16 _unMsg);
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virtual TW_INT16 Set(pTW_CAPABILITY _pCap, TW_INT16 &Condition);
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virtual bool Reset();
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// For float vals
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/**
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* Try to add a value for container. The first value added to a capabiltiy is set as the default and current value.
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* @param[in] _flAdd the value to be added.
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* @param[in] _bDefault if true explisitly sets this value to be the default and current.
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* @return true if success.
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*/
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bool Add(const float _flAdd, bool _bDefault = false);
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/**
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* Try to set the current value for container.
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* The value must already be part of the container.
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* @param[in] _flAdd the value to be set as current.
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* @return true if success.
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*/
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bool SetCurrent(float _flCurr);
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/**
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* Return the default value through _flVal if set.
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* @param[out] _flVal set the default value on return.
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* @return true if success.
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*/
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bool GetDefault(float &_flVal);
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/**
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* Return the current value through _flVal if set.
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* @param[out] _flVal set the current value on return.
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* @return true if success.
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*/
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bool GetCurrent(float &_flVal);
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/**
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* Return a vector of supported values.
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* @return supported values.
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*/
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const FloatVector &GetSupported();
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/**
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* Return the weather or not the value is supported by this capability.
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* @param[in] _flVal the value to check to see if it is supported
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* @return true is the _flVal is supported.
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*/
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bool isValueSupported(const float _flVal) {return -1 != getIndexForValue(_flVal);}
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/**
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* Return the index in vector list for value.
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* @param[in] _flVal value to search for.
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* @return the index of value, or -1 if does not exist.
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*/
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int getIndexForValue(const float _flVal);
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protected:
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/**
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* Check to see if type is valid.
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* @param[in] _unTWType type to check
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* @return true if valid
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*/
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bool isValidType(const TW_UINT16 _unTWType);
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FloatVector m_listFloats; /**< vector of valid container values. */
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FloatVector m_listFloatsDefault; /**< vector of valid container default values. */
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};
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#endif // __CTWAINCONTAINERFIX32_H__
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