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>
190 lines
7.2 KiB
C++
190 lines
7.2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#pragma once
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#include <drawinglayer/drawinglayerdllapi.h>
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#include <drawinglayer/primitive2d/BufferedDecompositionPrimitive2D.hxx>
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#include <drawinglayer/attribute/fontattribute.hxx>
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#include <basegfx/polygon/b2dpolypolygon.hxx>
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#include <basegfx/matrix/b2dhommatrix.hxx>
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#include <rtl/ustring.hxx>
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#include <tools/color.hxx>
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#include <tools/long.hxx>
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#include <basegfx/color/bcolor.hxx>
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#include <com/sun/star/lang/Locale.hpp>
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#include <vector>
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namespace drawinglayer::primitive2d
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{
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/** TextSimplePortionPrimitive2D class
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This is the basic primitive for representing a text portion. It contains
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all needed information. If it is not handled by a renderer, its decomposition
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will provide the text tools::PolyPolygon outlines as filled polygons, correctly
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transformed.
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To get better text quality, it is suggested to handle this primitive directly
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in a renderer. In that case, e.g. hintings on the system can be supported.
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@param maTextTransform
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The text transformation contains the text start position (always baselined)
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as translation, the FontSize as scale (where width relative to height defines
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font scaling and width == height means no font scaling) and the font rotation
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and shear.
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When shear is used and a renderer does not support it, it may be better to use
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the decomposition which will do everything correctly. Same is true for mirroring
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which would be expressed as negative scalings.
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@param rText
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The text to be used. Only a part may be used, but a bigger part of the string
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may be necessary for correct layouting (e.g. international)
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@param aTextPosition
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The index to the first character to use from rText
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@param aTextLength
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The number of characters to use from rText
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@param rDXArray
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The distances between the characters. This parameter may be empty, in that case
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the renderer is responsible to do something useful. If it is given, it has to be of
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the size aTextLength. Its values are in logical coordinates and describe the
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distance for each character to use. This is independent from the font width which
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is given with maTextTransform. The first value is the offset to use from the start
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point in FontCoordinateSystem X-Direction (given by maTextTransform) to the start
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point of the second character
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@param rKashidaArray
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The Kashida insertion positions.
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@param rFontAttribute
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The font definition
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@param rLocale
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The locale to use
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@param rFontColor
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The font color to use
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@param bFilled
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@param nWidthToFill
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@param rTextFillColor
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Text background color (has nothing to do with bFilled and nWidthToFill)
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*/
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class DRAWINGLAYER_DLLPUBLIC TextSimplePortionPrimitive2D : public BufferedDecompositionPrimitive2D
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{
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private:
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/// text transformation (FontCoordinateSystem)
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basegfx::B2DHomMatrix maTextTransform;
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/// The text, used from maTextPosition up to maTextPosition + maTextLength
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OUString maText;
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/// The index from where on maText is used
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sal_Int32 mnTextPosition;
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/// The length for maText usage, starting from maTextPosition
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sal_Int32 mnTextLength;
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/// The DX array in logic units
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std::vector<double> maDXArray;
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/// The Kashida array
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std::vector<sal_Bool> maKashidaArray;
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/// The font definition
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attribute::FontAttribute maFontAttribute;
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/// The Locale for the text
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css::lang::Locale maLocale;
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/// font color
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basegfx::BColor maFontColor;
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// Whether to fill a given width with the text
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bool mbFilled;
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// the width to fill
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tools::Long mnWidthToFill;
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/// The fill color of the text
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Color maTextFillColor;
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/// #i96669# internal: add simple range buffering for this primitive
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basegfx::B2DRange maB2DRange;
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protected:
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/// local decomposition.
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virtual Primitive2DReference
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create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const override;
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public:
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/// constructor
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TextSimplePortionPrimitive2D(basegfx::B2DHomMatrix aNewTransform, OUString aText,
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sal_Int32 nTextPosition, sal_Int32 nTextLength,
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std::vector<double>&& rDXArray,
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std::vector<sal_Bool>&& rKashidaArray,
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attribute::FontAttribute aFontAttribute, css::lang::Locale aLocale,
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const basegfx::BColor& rFontColor, bool bFilled = false,
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tools::Long nWidthToFill = 0,
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const Color& rTextFillColor = COL_TRANSPARENT);
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/** get text outlines as polygons and their according ObjectTransformation. Handles all
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the necessary VCL outline extractions, scaling adaptations and other stuff.
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*/
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void getTextOutlinesAndTransformation(basegfx::B2DPolyPolygonVector& rTarget,
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basegfx::B2DHomMatrix& rTransformation) const;
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/// data read access
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const basegfx::B2DHomMatrix& getTextTransform() const { return maTextTransform; }
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const OUString& getText() const { return maText; }
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sal_Int32 getTextPosition() const { return mnTextPosition; }
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sal_Int32 getTextLength() const { return mnTextLength; }
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const ::std::vector<double>& getDXArray() const { return maDXArray; }
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const ::std::vector<sal_Bool>& getKashidaArray() const { return maKashidaArray; }
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const attribute::FontAttribute& getFontAttribute() const { return maFontAttribute; }
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const css::lang::Locale& getLocale() const { return maLocale; }
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const basegfx::BColor& getFontColor() const { return maFontColor; }
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const Color& getTextFillColor() const { return maTextFillColor; }
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bool isFilled() const { return mbFilled; }
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tools::Long getWidthToFill() const { return mnWidthToFill; }
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/// compare operator
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virtual bool operator==(const BasePrimitive2D& rPrimitive) const override;
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/// get range
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virtual basegfx::B2DRange
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getB2DRange(const geometry::ViewInformation2D& rViewInformation) const override;
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/// provide unique ID
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virtual sal_uInt32 getPrimitive2DID() const override;
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};
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/// small helper to have a compare operator for Locale
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bool DRAWINGLAYER_DLLPUBLIC LocalesAreEqual(const css::lang::Locale& rA,
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const css::lang::Locale& rB);
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} // end of namespace drawinglayer::primitive2d
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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