office-gobmx/include/drawinglayer/primitive2d/mediaprimitive2d.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

87 lines
3.5 KiB
C++

/* -*- 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 .
*/
#pragma once
#include <drawinglayer/drawinglayerdllapi.h>
#include <drawinglayer/primitive2d/BufferedDecompositionPrimitive2D.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/color/bcolor.hxx>
#include <vcl/graph.hxx>
namespace drawinglayer::primitive2d
{
/** MediaPrimitive2D class
This is a unified primitive for Media visualisation, e.g. animations
or sounds. It's geometry is defined by Transform. For convenience,
it also contains a discrete border size (aka Pixels) which will be added
if used. This makes it a view-dependent primitive. It also gets a filled
background and the decomposition will try to create a graphic representation
if the content (defined by the URL), e.g. a still frame for animated stuff.
*/
class DRAWINGLAYER_DLLPUBLIC MediaPrimitive2D final : public BufferedDecompositionPrimitive2D
{
private:
/// the geometry definition
basegfx::B2DHomMatrix maTransform;
/// the content definition
OUString maURL;
/// style: background color
basegfx::BColor maBackgroundColor;
/// discrete border (in 'pixels')
sal_uInt32 mnDiscreteBorder;
const Graphic maSnapshot;
/// local decomposition
virtual Primitive2DReference create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const override;
public:
/// constructor
MediaPrimitive2D(
basegfx::B2DHomMatrix aTransform,
OUString aURL,
const basegfx::BColor& rBackgroundColor,
sal_uInt32 nDiscreteBorder,
Graphic aSnapshot);
/// data read access
const basegfx::B2DHomMatrix& getTransform() const { return maTransform; }
const basegfx::BColor& getBackgroundColor() const { return maBackgroundColor; }
sal_uInt32 getDiscreteBorder() const { return mnDiscreteBorder; }
/// 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: */