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/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: pagepreviewprimitive2d.cxx,v $
*
* $Revision: 1.3 $
*
* last change: $Author: aw $ $Date: 2008-05-27 14:11:20 $
*
* The Contents of this file are made available subject to
* the terms of GNU Lesser General Public License Version 2.1.
*
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2005 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_drawinglayer.hxx"
#include <drawinglayer/primitive2d/pagepreviewprimitive2d.hxx>
#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
#include <drawinglayer/primitive2d/maskprimitive2d.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <basegfx/polygon/b2dpolygon.hxx>
#include <drawinglayer/primitive2d/transformprimitive2d.hxx>
//////////////////////////////////////////////////////////////////////////////
using namespace com::sun::star;
//////////////////////////////////////////////////////////////////////////////
namespace drawinglayer
{
namespace primitive2d
{
Primitive2DSequence PagePreviewPrimitive2D::createLocalDecomposition(const geometry::ViewInformation2D& rViewInformation) const
{
Primitive2DSequence xRetval;
Primitive2DSequence aContent(getChildren());
if(aContent.hasElements()
&& basegfx::fTools::more(getContentWidth(), 0.0)
&& basegfx::fTools::more(getContentHeight(), 0.0))
{
// the decomposed matrix will be needed
basegfx::B2DVector aScale, aTranslate;
double fRotate, fShearX;
getTransform().decompose(aScale, aTranslate, fRotate, fShearX);
if(basegfx::fTools::more(aScale.getX(), 0.0) && basegfx::fTools::more(aScale.getY(), 0.0))
{
// check if content overlaps with tageted size and needs to be embedded with a
// clipping primitive
const basegfx::B2DRange aRealContentRange(getB2DRangeFromPrimitive2DSequence(aContent, rViewInformation));
const basegfx::B2DRange aAllowedContentRange(0.0, 0.0, getContentWidth(), getContentHeight());
if(!aAllowedContentRange.isInside(aRealContentRange))
{
const Primitive2DReference xReferenceA(new MaskPrimitive2D(basegfx::B2DPolyPolygon(basegfx::tools::createPolygonFromRect(aAllowedContentRange)), aContent));
aContent = Primitive2DSequence(&xReferenceA, 1);
}
// create a mapping from content to object.
basegfx::B2DHomMatrix aPageTrans;
if(getKeepAspectRatio())
{
// #i101075# when keeping the aspect ratio is wanted, it is necessary to calculate
// an equidistant scaling in X and Y and a corresponding translation to
// center the output. Calculate needed scale factors
const double fScaleX(aScale.getX() / getContentWidth());
const double fScaleY(aScale.getY() / getContentHeight());
// to keep the aspect, use the smaller scale and adapt missing size by translation
if(fScaleX < fScaleY)
{
// height needs to be adapted
const double fNeededHeight(aScale.getY() / fScaleX);
const double fSpaceToAdd(fNeededHeight - getContentHeight());
aPageTrans.translate(0.0, fSpaceToAdd * 0.5);
aPageTrans.scale(fScaleX, aScale.getY() / fNeededHeight);
}
else
{
// width needs to be adapted
const double fNeededWidth(aScale.getX() / fScaleY);
const double fSpaceToAdd(fNeededWidth - getContentWidth());
aPageTrans.translate(fSpaceToAdd * 0.5, 0.0);
aPageTrans.scale(aScale.getX() / fNeededWidth, fScaleY);
}
// add the missing object transformation aspects
aPageTrans.shearX(fShearX);
aPageTrans.rotate(fRotate);
aPageTrans.translate(aTranslate.getX(), aTranslate.getY());
}
else
{
// completely scale to PageObject size. Scale to unit size.
aPageTrans.scale(1.0/ getContentWidth(), 1.0 / getContentHeight());
// apply object matrix
aPageTrans *= getTransform();
}
// embed in necessary transformation to map from SdrPage to SdrPageObject
const Primitive2DReference xReferenceB(new TransformPrimitive2D(aPageTrans, aContent));
xRetval = Primitive2DSequence(&xReferenceB, 1);
}
}
return xRetval;
}
PagePreviewPrimitive2D::PagePreviewPrimitive2D(
const ::com::sun::star::uno::Reference< ::com::sun::star::drawing::XDrawPage >& rxDrawPage,
const basegfx::B2DHomMatrix& rTransform,
double fContentWidth,
double fContentHeight,
const Primitive2DSequence& rChildren,
bool bKeepAspectRatio)
: GroupPrimitive2D(rChildren),
mxDrawPage(rxDrawPage),
maTransform(rTransform),
mfContentWidth(fContentWidth),
mfContentHeight(fContentHeight),
mbKeepAspectRatio(bKeepAspectRatio)
{
}
bool PagePreviewPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
{
if(GroupPrimitive2D::operator==(rPrimitive))
{
const PagePreviewPrimitive2D& rCompare = static_cast< const PagePreviewPrimitive2D& >(rPrimitive);
return (getXDrawPage() == rCompare.getXDrawPage()
&& getTransform() == rCompare.getTransform()
&& getContentWidth() == rCompare.getContentWidth()
&& getContentHeight() == rCompare.getContentHeight()
&& getKeepAspectRatio() == rCompare.getKeepAspectRatio());
}
return false;
}
basegfx::B2DRange PagePreviewPrimitive2D::getB2DRange(const geometry::ViewInformation2D& /*rViewInformation`*/) const
{
// nothing is allowed to stick out of a PagePreviewPrimitive, thus we
// can quickly deliver our range here
basegfx::B2DRange aRetval(0.0, 0.0, 1.0, 1.0);
aRetval.transform(getTransform());
return aRetval;
}
// provide unique ID
ImplPrimitrive2DIDBlock(PagePreviewPrimitive2D, PRIMITIVE2D_ID_PAGEPREVIEWPRIMITIVE2D)
} // end of namespace primitive2d
} // end of namespace drawinglayer
//////////////////////////////////////////////////////////////////////////////
// eof
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