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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())
{
// 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);
}
// content is not scaled or rotated and occupates aContentRange. Create a mapping
// to own local geometry. Create matrix describing the content by setting scaling
basegfx::B2DHomMatrix aPageTrans;
aPageTrans.set(0, 0, getContentWidth());
aPageTrans.set(1, 1, getContentHeight());
// decompose to access own scaling
basegfx::B2DVector aScale, aTranslate;
double fRotate, fShearX;
getTransform().decompose(aScale, aTranslate, fRotate, fShearX);
if(getKeepAspectRatio())
{
// look at the aspect ratio of the content and the local geometry
const double fRatioOwn(aScale.getX() ? (aScale.getY() / aScale.getX()) : 1.0);
const double fRatioContent(getContentWidth() ? (getContentHeight() / getContentWidth()) : 1.0);
// the ratios are based on different coordinate systems, so look if they differ really more
// than 0,1 percent
if(fabs(fRatioOwn - fRatioContent) > 0.001)
{
if(basegfx::fTools::more(fRatioOwn, fRatioContent))
{
// vertically center the page by translating
const double fFullY(aScale.getX() ? (aScale.getY() * getContentWidth()) / aScale.getX() : 0.0);
const double fTransY((fFullY - getContentHeight()) * 0.5);
aPageTrans.set(1, 2, fTransY);
}
else
{
// horizontally center the page by translating
const double fFullX(aScale.getY() ? (aScale.getX() * getContentHeight()) / aScale.getY() : 0.0);
const double fTransX((fFullX - getContentWidth()) * 0.5);
aPageTrans.set(0, 2, fTransX);
}
}
}
// create composed transformation from content to local geometry. An
// eventually needed clipping is already added, so directly go to local coordinates
basegfx::B2DHomMatrix aPageToObject(aPageTrans);
aPageToObject.invert();
aPageToObject *= getTransform();
// embed in necessary transformation to map from SdrPage to SdrPageObject
const Primitive2DReference xReferenceB(new TransformPrimitive2D(aPageToObject, 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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