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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#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>
#include <basegfx/matrix/b2dhommatrixtools.hxx>
//////////////////////////////////////////////////////////////////////////////
using namespace com::sun::star;
//////////////////////////////////////////////////////////////////////////////
namespace drawinglayer
{
namespace primitive2d
{
Primitive2DSequence PagePreviewPrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
{
Primitive2DSequence xRetval;
Primitive2DSequence aContent(getPageContent());
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
const basegfx::B2DHomMatrix aCombined(basegfx::tools::createShearXRotateTranslateB2DHomMatrix(
fShearX, fRotate, aTranslate.getX(), aTranslate.getY()));
aPageTrans = aCombined * aPageTrans;
}
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& rPageContent,
bool bKeepAspectRatio)
: BufferedDecompositionPrimitive2D(),
mxDrawPage(rxDrawPage),
maPageContent(rPageContent),
maTransform(rTransform),
mfContentWidth(fContentWidth),
mfContentHeight(fContentHeight),
mbKeepAspectRatio(bKeepAspectRatio)
{
}
bool PagePreviewPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
{
if(BasePrimitive2D::operator==(rPrimitive))
{
const PagePreviewPrimitive2D& rCompare = static_cast< const PagePreviewPrimitive2D& >(rPrimitive);
return (getXDrawPage() == rCompare.getXDrawPage()
&& getPageContent() == rCompare.getPageContent()
&& 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
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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