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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 <sal/config.h>
#include <algorithm>
#include <drawinglayer/primitive2d/graphicprimitive2d.hxx>
#include <primitive2d/cropprimitive2d.hxx>
#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
#include <primitive2d/graphicprimitivehelper2d.hxx>
#include <drawinglayer/primitive2d/unifiedtransparenceprimitive2d.hxx>
#include <basegfx/matrix/b2dhommatrixtools.hxx>
namespace drawinglayer::primitive2d
{
void GraphicPrimitive2D::create2DDecomposition(Primitive2DContainer& rContainer,
const geometry::ViewInformation2D&) const
{
if (255 == getGraphicAttr().GetTransparency())
{
// content is invisible, done
return;
}
// do not apply mirroring from GraphicAttr to the Metafile by calling
// GetTransformedGraphic, this will try to mirror the Metafile using Scale()
// at the Metafile. This again calls Scale at the single MetaFile actions,
// but this implementation never worked. I reworked that implementations,
// but for security reasons i will try not to use it.
basegfx::B2DHomMatrix aTransform(getTransform());
if (getGraphicAttr().IsMirrored())
{
// content needs mirroring
const bool bHMirr(getGraphicAttr().GetMirrorFlags() & BmpMirrorFlags::Horizontal);
const bool bVMirr(getGraphicAttr().GetMirrorFlags() & BmpMirrorFlags::Vertical);
// mirror by applying negative scale to the unit primitive and
// applying the object transformation on it.
aTransform
= basegfx::utils::createScaleB2DHomMatrix(bHMirr ? -1.0 : 1.0, bVMirr ? -1.0 : 1.0);
aTransform.translate(bHMirr ? 1.0 : 0.0, bVMirr ? 1.0 : 0.0);
aTransform = getTransform() * aTransform;
}
// Get transformed graphic. Suppress rotation and cropping, only filtering is needed
// here (and may be replaced later on). Cropping is handled below as mask primitive (if set).
// Also need to suppress mirroring, it is part of the transformation now (see above).
// Also move transparency handling to embedding to a UnifiedTransparencePrimitive2D; do
// that by remembering original transparency and applying that later if needed
GraphicAttr aSuppressGraphicAttr(getGraphicAttr());
aSuppressGraphicAttr.SetCrop(0, 0, 0, 0);
aSuppressGraphicAttr.SetRotation(Degree10(0));
aSuppressGraphicAttr.SetMirrorFlags(BmpMirrorFlags::NONE);
aSuppressGraphicAttr.SetTransparency(0);
const GraphicObject& rGraphicObject = getGraphicObject();
Graphic aTransformedGraphic(rGraphicObject.GetGraphic());
const bool isBitmap(GraphicType::Bitmap == aTransformedGraphic.GetType()
&& !aTransformedGraphic.getVectorGraphicData());
const bool isAdjusted(getGraphicAttr().IsAdjusted());
const bool isDrawMode(GraphicDrawMode::Standard != getGraphicAttr().GetDrawMode());
if (isBitmap && (isAdjusted || isDrawMode))
{
// the pure primitive solution with the color modifiers works well, too, but when
// it is a bitmap graphic the old modification currently is faster; so use it here
// instead of creating all as in create2DColorModifierEmbeddingsAsNeeded (see below).
// Still, crop, rotation, mirroring and transparency is handled by primitives already
// (see above).
// This could even be done when vector graphic, but we explicitly want to have the
// pure primitive solution for this; this will allow vector graphics to stay vector
// graphics, independent from the color filtering stuff. This will enhance e.g.
// SVG and print quality while reducing data size at the same time.
// The other way around the old modifications when only used on already bitmap objects
// will not lose any quality.
aTransformedGraphic = rGraphicObject.GetTransformedGraphic(&aSuppressGraphicAttr);
// reset GraphicAttr after use to not apply double
aSuppressGraphicAttr = GraphicAttr();
}
// create sub-content; helper takes care of correct handling of
// bitmap, svg or metafile content
Primitive2DContainer aRetval;
create2DDecompositionOfGraphic(aRetval, aTransformedGraphic, aTransform);
if (aRetval.empty())
{
// content is invisible, done
return;
}
if (isAdjusted || isDrawMode)
{
// embed to needed ModifiedColorPrimitive2D's if necessary. Do this for
// adjustments and draw mode specials
aRetval = create2DColorModifierEmbeddingsAsNeeded(
aRetval, aSuppressGraphicAttr.GetDrawMode(),
std::clamp(aSuppressGraphicAttr.GetLuminance() * 0.01, -1.0, 1.0),
std::clamp(aSuppressGraphicAttr.GetContrast() * 0.01, -1.0, 1.0),
std::clamp(aSuppressGraphicAttr.GetChannelR() * 0.01, -1.0, 1.0),
std::clamp(aSuppressGraphicAttr.GetChannelG() * 0.01, -1.0, 1.0),
std::clamp(aSuppressGraphicAttr.GetChannelB() * 0.01, -1.0, 1.0),
std::clamp(aSuppressGraphicAttr.GetGamma(), 0.0, 10.0),
aSuppressGraphicAttr.IsInvert());
if (aRetval.empty())
{
// content is invisible, done
return;
}
}
if (getGraphicAttr().IsTransparent())
{
// check for transparency
const double fTransparency(
std::clamp(getGraphicAttr().GetTransparency() * (1.0 / 255.0), 0.0, 1.0));
if (!basegfx::fTools::equalZero(fTransparency))
{
const Primitive2DReference aUnifiedTransparence(
new UnifiedTransparencePrimitive2D(aRetval, fTransparency));
aRetval = Primitive2DContainer{ aUnifiedTransparence };
}
}
if (getGraphicAttr().IsCropped())
{
// check for cropping
// calculate scalings between real image size and logic object size. This
// is necessary since the crop values are relative to original bitmap size
const basegfx::B2DVector aObjectScale(aTransform * basegfx::B2DVector(1.0, 1.0));
const basegfx::B2DVector aCropScaleFactor(rGraphicObject.calculateCropScaling(
aObjectScale.getX(), aObjectScale.getY(), getGraphicAttr().GetLeftCrop(),
getGraphicAttr().GetTopCrop(), getGraphicAttr().GetRightCrop(),
getGraphicAttr().GetBottomCrop()));
// embed content in cropPrimitive
Primitive2DReference xPrimitive(new CropPrimitive2D(
aRetval, aTransform, getGraphicAttr().GetLeftCrop() * aCropScaleFactor.getX(),
getGraphicAttr().GetTopCrop() * aCropScaleFactor.getY(),
getGraphicAttr().GetRightCrop() * aCropScaleFactor.getX(),
getGraphicAttr().GetBottomCrop() * aCropScaleFactor.getY()));
aRetval = Primitive2DContainer{ xPrimitive };
}
rContainer.insert(rContainer.end(), aRetval.begin(), aRetval.end());
}
GraphicPrimitive2D::GraphicPrimitive2D(const basegfx::B2DHomMatrix& rTransform,
const GraphicObject& rGraphicObject,
const GraphicAttr& rGraphicAttr)
: BufferedDecompositionPrimitive2D()
, maTransform(rTransform)
, maGraphicObject(rGraphicObject)
, maGraphicAttr(rGraphicAttr)
{
}
GraphicPrimitive2D::GraphicPrimitive2D(const basegfx::B2DHomMatrix& rTransform,
const GraphicObject& rGraphicObject)
: BufferedDecompositionPrimitive2D()
, maTransform(rTransform)
, maGraphicObject(rGraphicObject)
, maGraphicAttr()
{
}
bool GraphicPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
{
if (BufferedDecompositionPrimitive2D::operator==(rPrimitive))
{
const GraphicPrimitive2D& rCompare = static_cast<const GraphicPrimitive2D&>(rPrimitive);
return (getTransform() == rCompare.getTransform()
&& getGraphicObject() == rCompare.getGraphicObject()
&& getGraphicAttr() == rCompare.getGraphicAttr());
}
return false;
}
basegfx::B2DRange
GraphicPrimitive2D::getB2DRange(const geometry::ViewInformation2D& /*rViewInformation*/) const
{
basegfx::B2DRange aRetval(0.0, 0.0, 1.0, 1.0);
aRetval.transform(getTransform());
return aRetval;
}
// provide unique ID
ImplPrimitive2DIDBlock(GraphicPrimitive2D, PRIMITIVE2D_ID_GRAPHICPRIMITIVE2D)
} // end of namespace
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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