opscale2.cpp

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// $Id: opscale2.cpp 1282 2006-06-09 09:46:49Z alex $
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 */
// Operation for doing an interactive scale of the selection

/*
*/


#include "camtypes.h"
#include "opscale2.h"

//#include "docview.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "rik.h"
#include "selector.h"
//#include "clikdrag.h"
//#include "app.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "selstr.h"




// This is not compulsory, but you may as well put it in so that the correct version
// of your file can be registered in the .exe
DECLARE_SOURCE("$Revision: 1282 $");

// An implement to match the Declare in the .h file.
// If you have many classes, it is recommended to place them all together, here at the start of the file
//CC_IMPLEMENT_DYNCREATE(OpScale2Trans, OpScaleTrans)

// This will get Camelot to display the filename and linenumber of any memory allocations
// that are not released at program exit
#define new CAM_DEBUG_NEW








/********************************************************************************************

>   OpScale2Trans();

    Author:     Harrison_Ainsworth (Xara Group Ltd) <camelotdev@xara.com>
    Created:    6/11/96
    Purpose:    default constructor

********************************************************************************************/

/*OpScale2Trans::OpScale2Trans()
    : OpScaleTrans()
{
}*/




/********************************************************************************************

>   virtual  ~OpScale2Trans();

    Author:     Harrison_Ainsworth (Xara Group Ltd) <camelotdev@xara.com>
    Created:    6/11/96
    Purpose:    destructor

********************************************************************************************/

/*OpScale2Trans::~OpScale2Trans()
{
}*/




/********************************************************************************************

>   OpScale2Trans( const OpScale2Trans& );

    Author:     Harrison_Ainsworth (Xara Group Ltd) <camelotdev@xara.com>
    Created:    6/11/96
    Purpose:    copy constructor

********************************************************************************************/
/*
OpScale2Trans::OpScale2Trans( const OpScale2Trans& Other )
    : OpScaleTrans( Other )
{
}
*/

/********************************************************************************************

>   OpScale2Trans&  operator=( const OpScale2Trans& );

    Author:     Harrison_Ainsworth (Xara Group Ltd) <camelotdev@xara.com>
    Created:    6/11/96
    Purpose:    assignment operator:  delegates to virtual Assign()

********************************************************************************************/
/*
OpScale2Trans&  OpScale2Trans::operator=( const OpScale2Trans& Other )
{
    Assign( Other );

    return  *this;
}
*/



/********************************************************************************************

>   virtual  OpScale2Trans*  Clone ()   const;

    Author:     Harrison_Ainsworth (Xara Group Ltd) <camelotdev@xara.com>
    Created:    6/11/96
    Purpose:    clone function

********************************************************************************************/
/*
OpScale2Trans*  OpScale2Trans::Clone ()   const
{

   OpScale2Trans*  Clone  =  new OpScale2Trans( *this );

   if( !Clone )
      throw  "OpScale2Trans::Clone()\n\nCouldn't get memory for a OpScale2Trans\n";

   return  Clone;

}
*/



/********************************************************************************************

>   private: virtual void  Assign( const OpScale2Trans& );

    Author:     Harrison_Ainsworth (Xara Group Ltd) <camelotdev@xara.com>
    Created:    6/11/96
    Purpose:    virtual assignment

********************************************************************************************/
/*
void  OpScale2Trans::Assign( const OpScale2Trans& Other )
{

    OpScaleTrans::operator=( Other );

}
*/



/********************************************************************************************

>   static BOOL OpScale2Trans::Declare()

    Author:     Rik_Heywood (Xara Group Ltd) <camelotdev@xara.com>
    Created:    5/7/93
    Returns:    TRUE if all went OK, False otherwise
    Purpose:    Adds the operation to the list of all known operations

********************************************************************************************/

/*BOOL OpScale2Trans::Declare()
{
    return  RegisterOpDescriptor( 0, _R(IDS_SCALETRANS), CC_RUNTIME_CLASS(OpScale2Trans),
                                  OPTOKEN_SCALE2, OpScaleTrans::GetState              );
}*/








/********************************************************************************************

>   virtual void  DoWithParam( OpDescriptor* pDescriptor,  OpParam* pOpParam )

    Author:     Harrison_Ainsworth (Xara Group Ltd) <camelotdev@xara.com> (adapted from Rik)
    Created:    6/11/97
    Inputs:     pDescriptor - The operations descriptor
                pOpParam    - The parameters for this operation
    Purpose:    override: slightly change to allow the scale factors setup and 
                operation execution to be delegated to a separate function - IterateToConvergence()
    See also:   TransOperation::DoWithParam()

********************************************************************************************/

/*void OpScale2Trans::DoWithParam( OpDescriptor*,  OpParam* pOpParam )
{

    // Get at my data
    TransformData* TransData = (TransformData*)(pOpParam->Param1);

    // copy across all the relavent bits of data for the transform
    CentreOfTrans   = TransData->CentreOfTrans;
    LockAspect      = TransData->LockAspect;
    LeaveCopy       = TransData->LeaveCopy;
    ScaleLines      = TransData->ScaleLines;
    TransFills      = TransData->TransFills;
    TransformRange  = TransData->pRange;        // if NULL use the selection

    // It is not possible to move between spreads in an immediate operation
    CanChangeToNewSpread = FALSE;

    // Where was this operation started from, and are we interested
    SetStartBlob(TransData->StartBlob);

    // Find the Selection and fail if it is not there
    Selection = GetApplication()->FindSelection();
    if (Selection==NULL)
    {
        FailAndExecute();
        End();
        return;
    }


    IterateToConvergence( pOpParam );


    // mark the selection cache as invalid (bounding rects etc will no longer be correct)
    Selection->Update();


    // End the operation
    End();  

}*/




/********************************************************************************************

>   protected: virtual INT32 IterateToConvergence ( OpParam* pParam );

    Author:     Harrison_Ainsworth (Xara Group Ltd) <camelotdev@xara.com>
    Created:    7/11/97
    Inputs:     pParam -  The parameters for this operation
    Returns:    dummy
    Purpose:    Calculate the scaling by iterative improvement
                    1.  set scale & matrix, accumulate matrix
                    2.  do a transform
                    3.  compare resultant width with intended width
                    4.  call to do the whole transform

********************************************************************************************/

/*INT32  OpScale2Trans::IterateToConvergence ( OpParam* pParam )
{

    const MILLIPOINT    IntendedWidth_k       =  ( (MILLIPOINT*)( pParam->Param2 ) )[0];
    const INT32         MaxWidthInaccuracy_k  =  (INT32)37;   // 0.05 * 1/96 inches (in millipoints) = 0.05 pixels
    const BOOL          OriginalSucceedAndDiscard_k  =  OpFlags.SucceedAndDiscard;
    const UINT32            MaxIterations_k       =  8;          // must be >= 1

    Matrix              AccumulatedScaling;      // default identity
    DocRect             BoundingRect          =  Selection->GetBoundingRect();
    INT32               WidthInaccuracy;
    Matrix              tmp;
    UINT32              i                     =  MaxIterations_k;




    OpFlags.SucceedAndDiscard  =  TRUE;   // suppress undo   // ???

    do
    {
        if( !InitTransformImmediate2( pParam,  BoundingRect ) )
            return  Failure( OriginalSucceedAndDiscard_k );
        BuildMatrix();

        FIXED16   abcd[4];
        ( tmp *= Transform ).GetComponents( abcd, 0 );
        if( abcd[0]  ==  0 )        break;
        else                        AccumulatedScaling  =  tmp;


        if( !CompleteTransformation() )
            return  Failure( OriginalSucceedAndDiscard_k );
        Selection->Update();


        BoundingRect     =  Selection->GetBoundingRect();
        WidthInaccuracy  =  BoundingRect.Width() - IntendedWidth_k;
        if( WidthInaccuracy < 0 )   WidthInaccuracy  =  -WidthInaccuracy;
    }
    while(     ( --i )
           &&  ( WidthInaccuracy > MaxWidthInaccuracy_k )  );



    ApplyAsSingleTransform( AccumulatedScaling,  OriginalSucceedAndDiscard_k );


    return  1;

}*/




/********************************************************************************************

  > protected: virtual INT32 OpScale2Trans::ApplyAsSingleTransform( Matrix& AccumulatedScaling,
                                                                  const BOOL OriginalSucceedAndDiscard_k )

    Author:     Harrison_Ainsworth (Xara Group Ltd) <camelotdev@xara.com>
    Created:    7/11/97
    Inputs:     AccumulatedScaling           - the whole transform
                OriginalSucceedAndDiscard_k  - original undo flag
    Returns:    dummy
    Purpose:    1.  undo all iterated transforms, undo off
                2.  do the accumulated transform, undo set to original state
    SeeAlso:    OpScaleTrans::IterateToConvergence()

********************************************************************************************/

/*INT32 OpScale2Trans::ApplyAsSingleTransform( Matrix& AccumulatedScaling,  const BOOL OriginalSucceedAndDiscard_k )
{


    Transform  =  AccumulatedScaling.Inverse();     // set  TransScaleFactor = YScaleFactor  ???

    if( !CompleteTransformation() )
        return  Failure( OriginalSucceedAndDiscard_k );

    Selection->Update();
    



    OpFlags.SucceedAndDiscard  =  OriginalSucceedAndDiscard_k;   // reset undo on/off choice
    Transform  =  AccumulatedScaling;               // set  TransScaleFactor = YScaleFactor  ???

    if( !CompleteTransformation() )
        return  Failure( OriginalSucceedAndDiscard_k );

    Selection->Update();



    return  1;

}*/




/********************************************************************************************

  > protected: OpScale2Trans::Failure ( const BOOL OriginalSucceedAndDiscard_k );

    Author:     Harrison_Ainsworth (Xara Group Ltd) <camelotdev@xara.com>
    Created:    7/11/97
    Inputs:     original undo flag
    Returns:    dummy
    Purpose:    acts like a 'catch' block:  general fail recovery

********************************************************************************************/

/*INT32  OpScale2Trans::Failure ( const BOOL OriginalSucceedAndDiscard_k )
{

    OpFlags.SucceedAndDiscard  =  OriginalSucceedAndDiscard_k;   // reset undo on/off choice
    FailAndExecute();

    return  0;

}*/


            
            
/********************************************************************************************

  > protected: virtual BOOL OpScale2Trans::InitTransformImmediate2( OpParam* pParam,  const DocRect& BoundingRect )

    Author:     Harrison_Ainsworth (Xara Group Ltd) <camelotdev@xara.com>
    Created:    7/11/97
    Inputs:     pParam       -  The parameters for this operation
                BoundingRect -  (of the selection)
    Returns:    TRUE - all ok,  FALSE - fixed pt over/underflow
    Purpose:    override: calculate scale factors from the relative change in size
    SeeAlso:    OpScaleTrans::InitTransformImmediate()

********************************************************************************************/

/*BOOL OpScale2Trans::InitTransformImmediate2( OpParam* pParam,  const DocRect& BoundingRect )
{
    MILLIPOINT* pParams   =  (MILLIPOINT*)( pParam->Param2 );
    MILLIPOINT  Width     =  pParams[0];
    MILLIPOINT  Height    =  pParams[1];


    double      fpXscale  =  (double)Width  / BoundingRect.Width();
    double      fpYscale  =  (double)Height / BoundingRect.Height();


    if( pSelTool->BeyondFixedRange(fpXscale) || pSelTool->BeyondFixedRange(fpYscale) )
    {
        TRACEUSER( "Harrison", _T("Under/overflow in OpScale2Trans::InitTransformImmediate\n"));
        //pInfoBarOp->ReportEditError(_R(IDS_SEL_ERROR_TOO_SMALL_OR_LARGE));
        ToolInformError(TOOLID_SELECTOR, _R(IDS_SEL_ERROR_TOO_SMALL_OR_LARGE));
        return  FALSE;
    }


    FIXED16 fxParams[2];
    fxParams[0]  =  fpXscale;
    fxParams[1]  =  fpYscale;

    OpScaleTrans::InitTransformImmediate( &OpParam((INT32)pParam->Param1, (INT32)fxParams) );


    return  TRUE;
}*/

---