222 lines
9.5 KiB
C++
222 lines
9.5 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 <sal/config.h>
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#include <algorithm>
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#include <drawinglayer/primitive2d/graphicprimitive2d.hxx>
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#include <primitive2d/cropprimitive2d.hxx>
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#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
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#include <drawinglayer/primitive2d/graphicprimitivehelper2d.hxx>
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#include <drawinglayer/primitive2d/unifiedtransparenceprimitive2d.hxx>
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#include <basegfx/matrix/b2dhommatrixtools.hxx>
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#include <utility>
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namespace drawinglayer::primitive2d
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{
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Primitive2DReference
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GraphicPrimitive2D::create2DDecomposition(const geometry::ViewInformation2D&) const
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{
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if (0 == getGraphicAttr().GetAlpha())
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{
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// content is invisible, done
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return nullptr;
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}
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// do not apply mirroring from GraphicAttr to the Metafile by calling
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// GetTransformedGraphic, this will try to mirror the Metafile using Scale()
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// at the Metafile. This again calls Scale at the single MetaFile actions,
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// but this implementation never worked. I reworked that implementations,
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// but for security reasons i will try not to use it.
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basegfx::B2DHomMatrix aTransform(getTransform());
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if (getGraphicAttr().IsMirrored())
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{
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// content needs mirroring
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const bool bHMirr(getGraphicAttr().GetMirrorFlags() & BmpMirrorFlags::Horizontal);
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const bool bVMirr(getGraphicAttr().GetMirrorFlags() & BmpMirrorFlags::Vertical);
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// mirror by applying negative scale to the unit primitive and
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// applying the object transformation on it.
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aTransform
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= basegfx::utils::createScaleB2DHomMatrix(bHMirr ? -1.0 : 1.0, bVMirr ? -1.0 : 1.0);
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aTransform.translate(bHMirr ? 1.0 : 0.0, bVMirr ? 1.0 : 0.0);
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aTransform = getTransform() * aTransform;
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}
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// Get transformed graphic. Suppress rotation and cropping, only filtering is needed
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// here (and may be replaced later on). Cropping is handled below as mask primitive (if set).
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// Also need to suppress mirroring, it is part of the transformation now (see above).
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// Also move transparency handling to embedding to a UnifiedTransparencePrimitive2D; do
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// that by remembering original transparency and applying that later if needed
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GraphicAttr aSuppressGraphicAttr(getGraphicAttr());
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aSuppressGraphicAttr.SetCrop(0, 0, 0, 0);
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aSuppressGraphicAttr.SetRotation(0_deg10);
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aSuppressGraphicAttr.SetMirrorFlags(BmpMirrorFlags::NONE);
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aSuppressGraphicAttr.SetAlpha(255);
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const GraphicObject& rGraphicObject = getGraphicObject();
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Graphic aTransformedGraphic(rGraphicObject.GetGraphic());
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const bool isAdjusted(getGraphicAttr().IsAdjusted());
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const bool isDrawMode(GraphicDrawMode::Standard != getGraphicAttr().GetDrawMode());
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// I have now added buffering BColorModifierStack-adapted Bitmaps,
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// see BitmapEx::ModifyBitmapEx, thus the primitive case is fast now.
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// It buffers the adapted bitmap and at that the SDPRs can then buffer
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// the system-dependent representation.
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// I keep the code below (adding a static switch). It modifies the
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// Graphic and is a reliable fallback - just in case. Remember that
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// it does *not* buffer and has to modify again at each re-use...
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static bool bUseOldModification(false);
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if (bUseOldModification)
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{
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const bool isBitmap(GraphicType::Bitmap == aTransformedGraphic.GetType()
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&& !aTransformedGraphic.getVectorGraphicData());
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if (isBitmap && (isAdjusted || isDrawMode))
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{
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// the pure primitive solution with the color modifiers works well, too, but when
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// it is a bitmap graphic the old modification currently is faster; so use it here
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// instead of creating all as in create2DColorModifierEmbeddingsAsNeeded (see below).
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// Still, crop, rotation, mirroring and transparency is handled by primitives already
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// (see above).
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// This could even be done when vector graphic, but we explicitly want to have the
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// pure primitive solution for this; this will allow vector graphics to stay vector
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// graphics, independent from the color filtering stuff. This will enhance e.g.
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// SVG and print quality while reducing data size at the same time.
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// The other way around the old modifications when only used on already bitmap objects
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// will not lose any quality.
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aTransformedGraphic = rGraphicObject.GetTransformedGraphic(&aSuppressGraphicAttr);
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// reset GraphicAttr after use to not apply double
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aSuppressGraphicAttr = GraphicAttr();
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}
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}
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// create sub-content; helper takes care of correct handling of
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// bitmap, svg or metafile content. also handle alpha there directly
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Primitive2DContainer aRetval;
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const double fTransparency(
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std::clamp((255 - getGraphicAttr().GetAlpha()) * (1.0 / 255.0), 0.0, 1.0));
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create2DDecompositionOfGraphic(aRetval, aTransformedGraphic, aTransform, fTransparency);
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if (aRetval.empty())
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{
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// content is invisible, done
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return nullptr;
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}
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if (isAdjusted || isDrawMode)
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{
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// embed to needed ModifiedColorPrimitive2D's if necessary. Do this for
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// adjustments and draw mode specials
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aRetval = create2DColorModifierEmbeddingsAsNeeded(
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std::move(aRetval), aSuppressGraphicAttr.GetDrawMode(),
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std::clamp(aSuppressGraphicAttr.GetLuminance() * 0.01, -1.0, 1.0),
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std::clamp(aSuppressGraphicAttr.GetContrast() * 0.01, -1.0, 1.0),
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std::clamp(aSuppressGraphicAttr.GetChannelR() * 0.01, -1.0, 1.0),
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std::clamp(aSuppressGraphicAttr.GetChannelG() * 0.01, -1.0, 1.0),
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std::clamp(aSuppressGraphicAttr.GetChannelB() * 0.01, -1.0, 1.0),
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std::clamp(aSuppressGraphicAttr.GetGamma(), 0.0, 10.0),
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aSuppressGraphicAttr.IsInvert());
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if (aRetval.empty())
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{
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// content is invisible, done
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return nullptr;
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}
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}
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if (getGraphicAttr().IsCropped())
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{
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// check for cropping
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// calculate scalings between real image size and logic object size. This
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// is necessary since the crop values are relative to original bitmap size
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const basegfx::B2DVector aObjectScale(aTransform * basegfx::B2DVector(1.0, 1.0));
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const basegfx::B2DVector aCropScaleFactor(rGraphicObject.calculateCropScaling(
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aObjectScale.getX(), aObjectScale.getY(), getGraphicAttr().GetLeftCrop(),
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getGraphicAttr().GetTopCrop(), getGraphicAttr().GetRightCrop(),
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getGraphicAttr().GetBottomCrop()));
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// embed content in cropPrimitive
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aRetval = Primitive2DContainer{ new CropPrimitive2D(
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std::move(aRetval), aTransform,
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getGraphicAttr().GetLeftCrop() * aCropScaleFactor.getX(),
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getGraphicAttr().GetTopCrop() * aCropScaleFactor.getY(),
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getGraphicAttr().GetRightCrop() * aCropScaleFactor.getX(),
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getGraphicAttr().GetBottomCrop() * aCropScaleFactor.getY()) };
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}
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return new GroupPrimitive2D(std::move(aRetval));
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}
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GraphicPrimitive2D::GraphicPrimitive2D(basegfx::B2DHomMatrix aTransform,
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const GraphicObject& rGraphicObject,
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const GraphicAttr& rGraphicAttr)
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: maTransform(std::move(aTransform))
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, maGraphicObject(rGraphicObject)
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, maGraphicAttr(rGraphicAttr)
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{
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// activate callback to flush buffered decomposition content
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setCallbackSeconds(20);
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}
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GraphicPrimitive2D::GraphicPrimitive2D(basegfx::B2DHomMatrix aTransform,
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const GraphicObject& rGraphicObject)
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: maTransform(std::move(aTransform))
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, maGraphicObject(rGraphicObject)
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{
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// activate callback to flush buffered decomposition content
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setCallbackSeconds(20);
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}
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bool GraphicPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
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{
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if (BufferedDecompositionPrimitive2D::operator==(rPrimitive))
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{
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const GraphicPrimitive2D& rCompare = static_cast<const GraphicPrimitive2D&>(rPrimitive);
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return (getTransform() == rCompare.getTransform()
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&& getGraphicObject() == rCompare.getGraphicObject()
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&& getGraphicAttr() == rCompare.getGraphicAttr());
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}
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return false;
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}
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basegfx::B2DRange
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GraphicPrimitive2D::getB2DRange(const geometry::ViewInformation2D& /*rViewInformation*/) const
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{
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basegfx::B2DRange aRetval(0.0, 0.0, 1.0, 1.0);
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aRetval.transform(getTransform());
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return aRetval;
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}
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// provide unique ID
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sal_uInt32 GraphicPrimitive2D::getPrimitive2DID() const
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{
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return PRIMITIVE2D_ID_GRAPHICPRIMITIVE2D;
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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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