office-gobmx/include/drawinglayer/primitive2d/fillgraphicprimitive2d.hxx
Noel Grandin 3b83c6ac80 make BufferedDecompositionPrimitive2D store a Primitive2DReference..
.. 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>
2024-02-12 11:36:05 +01:00

109 lines
4.4 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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* This file incorporates work covered by the following license notice:
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#pragma once
#include <drawinglayer/drawinglayerdllapi.h>
#include <drawinglayer/primitive2d/BufferedDecompositionPrimitive2D.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <drawinglayer/attribute/fillgraphicattribute.hxx>
#include <vcl/bitmapex.hxx>
namespace drawinglayer::primitive2d
{
class FillGraphicPrimitive2D;
}
namespace drawinglayer::processor2d
{
// define a simple accessor which can be used as friend. That method exists
// only locally at SDPRProcessor2dTools.cxx and is thus only usable/callable
// from there
void setOffsetXYCreatedBitmap(
drawinglayer::primitive2d::FillGraphicPrimitive2D&,
const BitmapEx&);
}
// FillbitmapPrimitive2D class
namespace drawinglayer::primitive2d
{
/** FillGraphicPrimitive2D class
This class defines a bitmap filling for a rectangular area. The
Range is defined by the Transformation, the fill by the FillGraphicAttribute.
There, the fill consists of a Bitmap (not transparent) defining the fill data
and a Point/Vector pair defining the relative position/size [0.0 .. 1.0]
inside the area where the bitmap is positioned. A flag defines then if this
is tiled or not.
Renderers should handle this primitive; it has a geometrically correct
decomposition, but on pixel outputs the areas where the tiled pieces are
aligned tend to show up (one overlapping or empty pixel)
*/
class DRAWINGLAYER_DLLPUBLIC FillGraphicPrimitive2D final : public BufferedDecompositionPrimitive2D
{
private:
/// the geometric definition
basegfx::B2DHomMatrix maTransformation;
/// the fill attributes
attribute::FillGraphicAttribute maFillGraphic;
/// the evtl. buffered OffsetXYCreatedBitmap
BitmapEx maOffsetXYCreatedBitmap;
/// local decomposition.
virtual Primitive2DReference create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const override;
// allow this single accessor to change it to set buggered data
friend void drawinglayer::processor2d::setOffsetXYCreatedBitmap(
drawinglayer::primitive2d::FillGraphicPrimitive2D&,
const BitmapEx&);
// private tooling method to be called by setOffsetXYCreatedBitmap
void impSetOffsetXYCreatedBitmap(const BitmapEx& rBitmap)
{
maOffsetXYCreatedBitmap = rBitmap;
}
public:
/// constructor
FillGraphicPrimitive2D(
basegfx::B2DHomMatrix aTransformation,
const attribute::FillGraphicAttribute& rFillGraphic);
/// data read access
const basegfx::B2DHomMatrix& getTransformation() const { return maTransformation; }
const attribute::FillGraphicAttribute& getFillGraphic() const { return maFillGraphic; }
const BitmapEx& getOffsetXYCreatedBitmap() const { return maOffsetXYCreatedBitmap; }
/// compare operator
virtual bool operator==( const BasePrimitive2D& rPrimitive ) const override;
/// get range
virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const override;
/// provide unique ID
virtual sal_uInt32 getPrimitive2DID() const override;
};
} // end of namespace drawinglayer::primitive2d
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */