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Bias.cpp
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Bias.cpp
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/* @(#)Z 1.6 com/src/layout/Bias.cpp, odlayout, od96os2, odos29712d 97/03/21 17:18:25 (96/07/15 18:31:46) */
//====START_GENERATED_PROLOG======================================
//
//
// COMPONENT_NAME: odlayout
//
// CLASSES: none
//
// ORIGINS: 82,27
//
//
// (C) COPYRIGHT International Business Machines Corp. 1995,1996
// All Rights Reserved
// Licensed Materials - Property of IBM
// US Government Users Restricted Rights - Use, duplication or
// disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
//
// IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
// ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE. IN NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR
// CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
// USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE
// OR PERFORMANCE OF THIS SOFTWARE.
//
//====END_GENERATED_PROLOG========================================
//
/* IBM Change History (most recent first): */
/* 20470 03/19/96 tmw/SA Apple DR4 and common Windows/OS2 */
/********************************************************************/
/*
File: Bias.cpp
Contains: Implementation of private utility functions
Owned by: Joshua Susser
Copyright: © 1994 - 1995 by Apple Computer, Inc., all rights reserved.
Change History (most recent first):
<5> 9/13/95 DM 1277216 GM:API return no ODPoints nor
ODPolygons
<4> 6/23/95 JBS 1251627 fix refcounting throughout file
<3> 5/26/95 RR #1251403: Multithreading naming support
<2> 9/29/94 JBS 1188214: more coord bias impl
<1> 9/22/94 JBS first checked in
*/
/*
These functions are private utilities for use by Layout classes which need
to bias and unbias geometry. Frames and facets store geometry (shape and
transform objects) in platform-normal coordinates. They must therefore unbias
geometry in "setter" methods, and bias it in "getter" methods. These functions
do the necessary transformations. They assume that geometry objects are
consumed on set, and copied out on get.
*/
#ifndef _BIAS_
#include "Bias.h"
#endif
#ifndef SOM_ODCanvas_xh
#include <Canvas.xh>
#endif
#ifndef SOM_ODShape_xh
#include <Shape.xh>
#endif
#ifndef SOM_ODTransform_xh
#include <Trnsform.xh>
#endif
#ifndef _TEMPOBJ_
#include "TempObj.h"
#endif
#ifdef _FACET_DEBUG_
#include <qprintf.h>
#endif
//==============================================================================
// Functions
//==============================================================================
//------------------------------------------------------------------------------
// BiasPoint
//------------------------------------------------------------------------------
ODPoint BiasPointGet(Environment *ev, ODPoint* point, ODCanvas* biasCanvas)
{
ODPoint returnPoint = *point;
TempODTransform biasTransform = kODNULL;
#ifdef _FACET_DEBUG_
qprintf("Executing BiasPointGet()\n");
#endif
if ( biasCanvas )
biasTransform = biasCanvas->AcquireBiasTransform(ev);
if ( biasTransform )
biasTransform->TransformPoint(ev, &returnPoint);
return returnPoint;
}
ODPoint BiasPointSet(Environment *ev, ODPoint* point, ODCanvas* biasCanvas)
{
ODPoint returnPoint = *point;
TempODTransform biasTransform = kODNULL;
#ifdef _FACET_DEBUG_
qprintf("Executing BiasPointSet()\n");
#endif
if ( biasCanvas )
biasTransform = biasCanvas->AcquireBiasTransform(ev);
if ( biasTransform )
biasTransform->InvertPoint(ev, &returnPoint);
return returnPoint;
}
//------------------------------------------------------------------------------
// BiasShape
//------------------------------------------------------------------------------
ODShape* BiasShapeGet(Environment *ev, ODShape* shape, ODCanvas* biasCanvas)
{
ODShape* returnShape = kODNULL;
TempODTransform biasTransform = kODNULL;
#ifdef _FACET_DEBUG_
qprintf("Executing BiasShapeGet()\n");
#endif
if ( shape )
{
if ( biasCanvas )
biasTransform = biasCanvas->AcquireBiasTransform(ev);
if ( biasTransform )
{
returnShape = shape->Copy(ev);
returnShape->Transform(ev, biasTransform);
}
else
{
returnShape = shape;
returnShape->Acquire(ev);
}
}
return returnShape;
}
ODShape* BiasShapeSet(Environment *ev, ODShape* shape, ODCanvas* biasCanvas)
{
TempODTransform biasTransform = kODNULL;
#ifdef _FACET_DEBUG_
qprintf("Executing BiasShapeSet()\n");
#endif
if ( shape )
{
if ( biasCanvas )
biasTransform = biasCanvas->AcquireBiasTransform(ev);
if ( biasTransform )
shape->InverseTransform(ev, biasTransform);
}
return shape;
}
//------------------------------------------------------------------------------
// BiasTransform
//------------------------------------------------------------------------------
ODTransform* BiasTransformGet(Environment *ev, ODTransform* transform, ODCanvas* biasCanvas)
{
ODTransform* returnTransform = kODNULL;
TempODTransform biasTransform = kODNULL;
#ifdef _FACET_DEBUG_
qprintf("Executing BiasTransformGet()\n");
#endif
if ( transform )
{
if ( biasCanvas )
biasTransform = biasCanvas->AcquireBiasTransform(ev);
if ( biasTransform )
{
returnTransform = transform->Copy(ev);
returnTransform->PreCompose(ev, biasTransform);
}
else
{
returnTransform = transform;
returnTransform->Acquire(ev);
}
}
return returnTransform;
}
ODTransform* BiasTransformSet(Environment *ev, ODTransform* transform, ODCanvas* biasCanvas)
{
TempODTransform biasTransform = kODNULL;
#ifdef _FACET_DEBUG_
qprintf("Executing BiasTransformSet()\n");
#endif
if ( transform )
{
if ( biasCanvas )
biasTransform = biasCanvas->AcquireBiasTransform(ev);
if ( biasTransform )
{
biasTransform->Invert(ev);
transform->PreCompose(ev, biasTransform);
biasTransform->Invert(ev);
}
}
return transform;
}