3b83c6ac80
.. instead of a Primitive2DContainer. The container very frequently contains only a single item, since the decomposition method often sticks only a single top-level node in there, so it turns out to be a net loss overall, memory consumption-wise. Also, if we return a single Primitive2DReference from a BufferedDecomposition, that maximises the sharing of data between the BufferedDecomposition objects at the bottom of the decomposed tree, and objects higher up. Change-Id: Iaf272e60e2997299cc35a1bd209c51b6b79e9a8b Reviewed-on: https://gerrit.libreoffice.org/c/core/+/162976 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
102 lines
4.2 KiB
C++
102 lines
4.2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <drawinglayer/primitive2d/discretebitmapprimitive2d.hxx>
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#include <drawinglayer/primitive2d/bitmapprimitive2d.hxx>
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#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
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#include <toolkit/helper/vclunohelper.hxx>
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namespace drawinglayer::primitive2d
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{
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Primitive2DReference DiscreteBitmapPrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& /*rViewInformation*/) const
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{
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// use getViewTransformation() and getObjectTransformation() from
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// ObjectAndViewTransformationDependentPrimitive2D to create a BitmapPrimitive2D
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// with the correct mapping
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if(getBitmapEx().IsEmpty())
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return nullptr;
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// get discrete size
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const Size& rSizePixel = getBitmapEx().GetSizePixel();
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const basegfx::B2DVector aDiscreteSize(rSizePixel.Width(), rSizePixel.Height());
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// get inverse ViewTransformation
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basegfx::B2DHomMatrix aInverseViewTransformation(getViewTransformation());
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aInverseViewTransformation.invert();
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// get size and position in world coordinates
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const basegfx::B2DVector aWorldSize(aInverseViewTransformation * aDiscreteSize);
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const basegfx::B2DPoint aWorldTopLeft(getObjectTransformation() * getTopLeft());
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// build object matrix in world coordinates so that the top-left
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// position remains, but possible transformations (e.g. rotations)
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// in the ObjectToView stack remain and get correctly applied
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basegfx::B2DHomMatrix aObjectTransform;
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aObjectTransform.set(0, 0, aWorldSize.getX());
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aObjectTransform.set(1, 1, aWorldSize.getY());
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aObjectTransform.set(0, 2, aWorldTopLeft.getX());
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aObjectTransform.set(1, 2, aWorldTopLeft.getY());
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// get inverse ObjectTransformation
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basegfx::B2DHomMatrix aInverseObjectTransformation(getObjectTransformation());
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aInverseObjectTransformation.invert();
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// transform to object coordinate system
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aObjectTransform = aInverseObjectTransformation * aObjectTransform;
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// create BitmapPrimitive2D with now object-local coordinate data
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return
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new BitmapPrimitive2D(
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getBitmapEx(),
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aObjectTransform);
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}
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DiscreteBitmapPrimitive2D::DiscreteBitmapPrimitive2D(
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const BitmapEx& rBitmapEx,
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const basegfx::B2DPoint& rTopLeft)
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: maBitmapEx(rBitmapEx),
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maTopLeft(rTopLeft)
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{
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}
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bool DiscreteBitmapPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
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{
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if(ObjectAndViewTransformationDependentPrimitive2D::operator==(rPrimitive))
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{
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const DiscreteBitmapPrimitive2D& rCompare = static_cast<const DiscreteBitmapPrimitive2D&>(rPrimitive);
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return (getBitmapEx() == rCompare.getBitmapEx()
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&& getTopLeft() == rCompare.getTopLeft());
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}
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return false;
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}
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// provide unique ID
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sal_uInt32 DiscreteBitmapPrimitive2D::getPrimitive2DID() const
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{
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return PRIMITIVE2D_ID_DISCRETEBITMAPPRIMITIVE2D;
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}
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} // end of namespace
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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