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>
106 lines
4.4 KiB
C++
106 lines
4.4 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/color/bcolor.hxx>
|
|
#include <basegfx/matrix/b2dhommatrix.hxx>
|
|
|
|
|
|
// HelplinePrimitive2D class
|
|
|
|
namespace drawinglayer::primitive2d
|
|
{
|
|
/** HelplineStyle2D definition
|
|
|
|
The available styles of Helplines
|
|
*/
|
|
enum class HelplineStyle2D
|
|
{
|
|
Point,
|
|
Line
|
|
};
|
|
|
|
/** HelplinePrimitive2D class
|
|
|
|
This primitive provides a view-dependent helpline definition. The Helpline
|
|
is defined by a line equation (Point and vector) and a style. When the style
|
|
is a line, dependent from Viewport the visible part of that Helpline is
|
|
constructed. For Point, a cross is constructed. This primitive is highly
|
|
view-dependent.
|
|
|
|
The visualisation uses the two given colors to create a dashed line with
|
|
the given dash length.
|
|
*/
|
|
class DRAWINGLAYER_DLLPUBLIC HelplinePrimitive2D final : public BufferedDecompositionPrimitive2D
|
|
{
|
|
private:
|
|
/// Helpline geometry definition
|
|
basegfx::B2DPoint maPosition;
|
|
basegfx::B2DVector maDirection;
|
|
HelplineStyle2D meStyle;
|
|
|
|
/// Helpline style definition
|
|
basegfx::BColor maRGBColA;
|
|
basegfx::BColor maRGBColB;
|
|
double mfDiscreteDashLength;
|
|
|
|
/** the last used object to view transformtion and the last Viewport,
|
|
used from getDecomposition for decide buffering
|
|
*/
|
|
basegfx::B2DHomMatrix maLastObjectToViewTransformation;
|
|
basegfx::B2DRange maLastViewport;
|
|
|
|
/// create local decomposition
|
|
virtual Primitive2DReference create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const override;
|
|
|
|
public:
|
|
/// constructor
|
|
HelplinePrimitive2D(
|
|
const basegfx::B2DPoint& rPosition,
|
|
const basegfx::B2DVector& rDirection,
|
|
HelplineStyle2D eStyle,
|
|
const basegfx::BColor& rRGBColA,
|
|
const basegfx::BColor& aRGBColB,
|
|
double fDiscreteDashLength);
|
|
|
|
/// data read access
|
|
const basegfx::B2DPoint& getPosition() const { return maPosition; }
|
|
const basegfx::B2DVector& getDirection() const { return maDirection; }
|
|
HelplineStyle2D getStyle() const { return meStyle; }
|
|
const basegfx::BColor& getRGBColA() const { return maRGBColA; }
|
|
const basegfx::BColor& getRGBColB() const { return maRGBColB; }
|
|
double getDiscreteDashLength() const { return mfDiscreteDashLength; }
|
|
|
|
/// compare operator
|
|
virtual bool operator==(const BasePrimitive2D& rPrimitive) const override;
|
|
|
|
/// provide unique ID
|
|
virtual sal_uInt32 getPrimitive2DID() const override;
|
|
|
|
/// Override standard getDecomposition to be view-dependent here
|
|
virtual void get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor, const geometry::ViewInformation2D& rViewInformation) const override;
|
|
};
|
|
} // end of namespace drawinglayer::primitive2d
|
|
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|