office-gobmx/drawinglayer/source/primitive2d/PolyPolygonColorPrimitive2D.cxx
Armin Le Grand (allotropia) fe589d8e54 Added two simple tooling Primitives for easy/common cases
Added three simple tooling Primitives:

(1) SingleLinePrimitive2D:
Just a Line from Point A to B with a BColor, decomposes
to a PolygonHairlinePrimitive2D (and to a PointArrayPrimitive2D
if only a single point aka A == B)

(2) LineRectanglePrimitive2D:
(3) FilledRectanglePrimitive2D:
Rectangles that support fill or line, gets decomposed
to maybe PolyPolygonColorPrimitive2D (if filled) and a
PolygonHairlinePrimitive2D (if line) or nothing if the
B2DRange is empty

NOTE: If using these despite being hor/ver aligned due to
their nature as B2DRange(s) (aka 'non rotated/sheared')
these may have to be transformed if the current
transformation context you are working in is rotated
or sheared, so *ensure* to handle these correctly if
you do handle them yourself. This is not needed with
the Polygon-based ones - that's why these are - and
stay - the common case(s).

Both are hairline primitives themselves, so are potentially
*view-dependent* (see comment in *.cxx and *.hxx). They will be
useful as very simple primitives for small renderers, e.g. to
avoid conversion from rectangles or just lines to polygons.

The more general Primitives are always the polygon-based ones,
so these new ones get decomposed to these (decomposition direction,
complex -> simpler). This assures that a processor/renderer has
minimally to support the polygon-based ones, but *can* use these
simple tooling ones directly if he wants to.

This will come in handy for future System-Dependent PrimitiveRenderers,
which I am currently working on one to offer as example - this leads
to identifying helpful upstream things that will come in handy in that
regard - like these ones.

Change-Id: Ie5039e6cfad6c9914c165cae6f8b59abecc38302
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/144543
Tested-by: Jenkins
Reviewed-by: Armin Le Grand <Armin.Le.Grand@me.com>
2022-12-20 12:25:28 +00:00

115 lines
3.7 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
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* 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 <drawinglayer/primitive2d/PolyPolygonColorPrimitive2D.hxx>
#include <basegfx/polygon/b2dpolypolygontools.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
#include <utility>
using namespace com::sun::star;
namespace drawinglayer::primitive2d
{
PolyPolygonColorPrimitive2D::PolyPolygonColorPrimitive2D(basegfx::B2DPolyPolygon aPolyPolygon,
const basegfx::BColor& rBColor)
: maPolyPolygon(std::move(aPolyPolygon))
, maBColor(rBColor)
{
}
bool PolyPolygonColorPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
{
if (BasePrimitive2D::operator==(rPrimitive))
{
const PolyPolygonColorPrimitive2D& rCompare
= static_cast<const PolyPolygonColorPrimitive2D&>(rPrimitive);
return (getB2DPolyPolygon() == rCompare.getB2DPolyPolygon()
&& getBColor() == rCompare.getBColor());
}
return false;
}
basegfx::B2DRange PolyPolygonColorPrimitive2D::getB2DRange(
const geometry::ViewInformation2D& /*rViewInformation*/) const
{
// return range
return basegfx::utils::getRange(getB2DPolyPolygon());
}
// provide unique ID
sal_uInt32 PolyPolygonColorPrimitive2D::getPrimitive2DID() const
{
return PRIMITIVE2D_ID_POLYPOLYGONCOLORPRIMITIVE2D;
}
FilledRectanglePrimitive2D::FilledRectanglePrimitive2D(const basegfx::B2DRange& rB2DRange,
const basegfx::BColor& rBColor)
: BasePrimitive2D()
, maB2DRange(rB2DRange)
, maBColor(rBColor)
{
}
bool FilledRectanglePrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
{
if (BasePrimitive2D::operator==(rPrimitive))
{
const FilledRectanglePrimitive2D& rCompare(
static_cast<const FilledRectanglePrimitive2D&>(rPrimitive));
return (getB2DRange() == rCompare.getB2DRange() && getBColor() == rCompare.getBColor());
}
return false;
}
basegfx::B2DRange FilledRectanglePrimitive2D::getB2DRange(
const geometry::ViewInformation2D& /*rViewInformation*/) const
{
return getB2DRange();
}
sal_uInt32 FilledRectanglePrimitive2D::getPrimitive2DID() const
{
return PRIMITIVE2D_ID_FILLEDRECTANGLEPRIMITIVE2D;
}
void FilledRectanglePrimitive2D::get2DDecomposition(
Primitive2DDecompositionVisitor& rVisitor,
const geometry::ViewInformation2D& /*rViewInformation*/) const
{
if (getB2DRange().isEmpty())
{
// no geometry, done
return;
}
const basegfx::B2DPolygon aPolygon(basegfx::utils::createPolygonFromRect(getB2DRange()));
Primitive2DContainer aSequence
= { new PolyPolygonColorPrimitive2D(basegfx::B2DPolyPolygon(aPolygon), getBColor()) };
rVisitor.visit(aSequence);
}
} // end drawinglayer::primitive2d namespace
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */