f9af0abce2
The EmfPlusStringFormat object specifies text layout, display manipulations, and language identification. With this commit the support for font language and country was added. Also Bold style is applied, for strings which needs that. Change-Id: Id9735a9ddb959aebd20d6d4d1bb5da0fa9c1fb85 Reviewed-on: https://gerrit.libreoffice.org/36555 Tested-by: Jenkins <ci@libreoffice.org> Reviewed-by: Bartosz Kosiorek <gang65@poczta.onet.pl>
349 lines
14 KiB
C++
349 lines
14 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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#ifndef INCLUDED_CPPCANVAS_SOURCE_INC_IMPLRENDERER_HXX
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#define INCLUDED_CPPCANVAS_SOURCE_INC_IMPLRENDERER_HXX
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#include <sal/types.h>
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#include <cppcanvas/renderer.hxx>
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#include <cppcanvas/canvas.hxx>
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#include <canvasgraphichelper.hxx>
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#include <action.hxx>
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#include <outdevstate.hxx>
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#include <com/sun/star/rendering/FontRequest.hpp>
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#include <com/sun/star/rendering/StrokeAttributes.hpp>
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#include <osl/endian.h>
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#include <vector>
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#include <map>
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class GDIMetaFile;
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class VirtualDevice;
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class Gradient;
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namespace tools { class Rectangle; }
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namespace vcl { class Font; }
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namespace tools { class PolyPolygon; }
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class Point;
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class MetaCommentAction;
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namespace basegfx {
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class B2DPolyPolygon;
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class B2DPolygon;
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}
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namespace cppcanvas
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{
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namespace internal
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{
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struct OutDevState;
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struct ActionFactoryParameters;
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struct XForm;
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struct EMFPObject
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{
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virtual ~EMFPObject() {}
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};
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// state stack of OutputDevice, to correctly handle
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// push/pop actions
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class VectorOfOutDevStates
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{
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public:
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OutDevState& getState();
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const OutDevState& getState() const;
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void pushState(PushFlags nFlags);
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void popState();
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void clearStateStack();
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private:
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std::vector< OutDevState > m_aStates;
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};
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// EMF+
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// Transformation matrix (used for Affine Transformation)
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// [ eM11, eM12, eDx ]
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// [ eM21, eM22, eDy ]
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// [ 0, 0, 1 ]
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// that consists of a linear map (eM11, eM12, eM21, eM22)
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// More info: https://en.wikipedia.org/wiki/Linear_map
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// followed by a translation (eDx, eDy)
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struct XForm
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{
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float eM11; // M1,1 value in the matrix. Increases or decreases the size of the pixels horizontally.
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float eM12; // M1,2 value in the matrix. This effectively angles the X axis up or down.
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float eM21; // M2,1 value in the matrix. This effectively angles the Y axis left or right.
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float eM22; // M2,2 value in the matrix. Increases or decreases the size of the pixels vertically.
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float eDx; // Delta x (Dx) value in the matrix. Moves the whole coordinate system horizontally.
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float eDy; // Delta y (Dy) value in the matrix. Moves the whole coordinate system vertically.
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XForm()
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{
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SetIdentity ();
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}
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void SetIdentity ()
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{
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eM11 = eM22 = 1.0f;
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eDx = eDy = eM12 = eM21 = 0.0f;
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}
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void Set (const XForm& f)
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{
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eM11 = f.eM11;
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eM12 = f.eM12;
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eM21 = f.eM21;
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eM22 = f.eM22;
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eDx = f.eDx;
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eDy = f.eDy;
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}
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// Multiple two square matrices
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// [ eM11, eM12, eDx ] [ f.eM11, f.eM12, f.eDx ]
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// [ eM21, eM22, eDy ] x [ f.eM21, f.eM22, f.eDy ]
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// [ 0, 0, 1 ] [ 0, 0, 1 ]
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// More information: https://en.wikipedia.org/wiki/Matrix_multiplication#Square_matrices
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// FIXME We shouldn't modify source matrix during computation
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void Multiply (const XForm& f)
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{
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eM11 = eM11*f.eM11 + eM12*f.eM21;
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eM12 = eM11*f.eM12 + eM12*f.eM22;
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eM21 = eM21*f.eM11 + eM22*f.eM21;
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eM22 = eM21*f.eM12 + eM22*f.eM22;
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eDx = eDx*f.eM11 + eDy*f.eM21 + f.eDx;
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eDy = eDx*f.eM12 + eDy*f.eM22 + f.eDy;
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}
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#ifdef OSL_BIGENDIAN
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// little endian <-> big endian switch
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static float GetSwapFloat( SvStream& rSt )
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{
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float fTmp;
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sal_Int8* pPtr = (sal_Int8*)&fTmp;
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rSt.ReadSChar( pPtr[3] );
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rSt.ReadSChar( pPtr[2] );
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rSt.ReadSChar( pPtr[1] );
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rSt.ReadSChar( pPtr[0] );
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return fTmp;
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}
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#endif
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friend SvStream& ReadXForm( SvStream& rIn, XForm& rXForm )
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{
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if ( sizeof( float ) != 4 )
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{
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OSL_FAIL( "EnhWMFReader::sizeof( float ) != 4" );
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rXForm = XForm();
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}
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else
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{
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#ifdef OSL_BIGENDIAN
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rXForm.eM11 = GetSwapFloat( rIn );
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rXForm.eM12 = GetSwapFloat( rIn );
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rXForm.eM21 = GetSwapFloat( rIn );
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rXForm.eM22 = GetSwapFloat( rIn );
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rXForm.eDx = GetSwapFloat( rIn );
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rXForm.eDy = GetSwapFloat( rIn );
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#else
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rIn.ReadFloat( rXForm.eM11 ).ReadFloat( rXForm.eM12 ).ReadFloat( rXForm.eM21 ).ReadFloat( rXForm.eM22 )
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.ReadFloat( rXForm.eDx ).ReadFloat( rXForm.eDy );
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#endif
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}
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return rIn;
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}
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};
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// EMF+
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typedef struct {
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XForm aWorldTransform;
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OutDevState aDevState;
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} EmfPlusGraphicState;
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typedef std::map<int,EmfPlusGraphicState> GraphicStateMap;
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class ImplRenderer : public virtual Renderer, protected CanvasGraphicHelper
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{
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public:
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ImplRenderer( const CanvasSharedPtr& rCanvas,
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const GDIMetaFile& rMtf,
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const Parameters& rParms );
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virtual ~ImplRenderer() override;
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virtual bool draw() const override;
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virtual bool drawSubset( sal_Int32 nStartIndex,
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sal_Int32 nEndIndex ) const override;
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virtual ::basegfx::B2DRange getSubsetArea( sal_Int32 nStartIndex,
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sal_Int32 nEndIndex ) const override;
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// element of the Renderer's action vector. Need to be
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// public, since some functors need it, too.
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struct MtfAction
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{
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MtfAction( const ActionSharedPtr& rAction,
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sal_Int32 nOrigIndex ) :
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mpAction( rAction ),
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mnOrigIndex( nOrigIndex )
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{
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}
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ActionSharedPtr mpAction;
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sal_Int32 mnOrigIndex;
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};
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// prefetched and prepared canvas actions
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// (externally not visible)
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typedef std::vector< MtfAction > ActionVector;
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/* EMF+ */
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static void ReadRectangle (SvStream& s, float& x, float& y, float &width, float& height, bool bCompressed = false);
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static void ReadPoint (SvStream& s, float& x, float& y, sal_uInt32 flags);
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void MapToDevice (double &x, double &y);
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::basegfx::B2DPoint Map (double ix, double iy);
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::basegfx::B2DSize MapSize (double iwidth, double iheight);
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void GraphicStatePush (GraphicStateMap& map, sal_Int32 index, OutDevState& rState);
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void GraphicStatePop (GraphicStateMap& map, sal_Int32 index, OutDevState& rState);
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private:
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ImplRenderer(const ImplRenderer&) = delete;
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ImplRenderer& operator=( const ImplRenderer& ) = delete;
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static void updateClipping( const ::basegfx::B2DPolyPolygon& rClipPoly,
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const ActionFactoryParameters& rParms,
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bool bIntersect );
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static void updateClipping( const ::tools::Rectangle& rClipRect,
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const ActionFactoryParameters& rParms,
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bool bIntersect );
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static css::uno::Reference<
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css::rendering::XCanvasFont > createFont( double& o_rFontRotation,
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const vcl::Font& rFont,
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const ActionFactoryParameters& rParms );
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bool createActions( GDIMetaFile& rMtf,
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const ActionFactoryParameters& rParms,
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bool bSubsettableActions );
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bool createFillAndStroke( const ::basegfx::B2DPolyPolygon& rPolyPoly,
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const ActionFactoryParameters& rParms );
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bool createFillAndStroke( const ::basegfx::B2DPolygon& rPoly,
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const ActionFactoryParameters& rParms );
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static void skipContent( GDIMetaFile& rMtf,
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const char* pCommentString,
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sal_Int32& io_rCurrActionIndex );
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static bool isActionContained( GDIMetaFile& rMtf,
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const char* pCommentString,
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MetaActionType nType );
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void createGradientAction( const ::tools::PolyPolygon& rPoly,
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const ::Gradient& rGradient,
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const ActionFactoryParameters& rParms,
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bool bIsPolygonRectangle,
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bool bSubsettableActions );
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void createTextAction( const ::Point& rStartPoint,
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const OUString& rString,
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int nIndex,
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int nLength,
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const long* pCharWidths,
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const ActionFactoryParameters& rParms,
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bool bSubsettable );
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bool getSubsetIndices( sal_Int32& io_rStartIndex,
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sal_Int32& io_rEndIndex,
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ActionVector::const_iterator& o_rRangeBegin,
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ActionVector::const_iterator& o_rRangeEnd ) const;
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void processObjectRecord(SvMemoryStream& rObjectStream, sal_uInt16 flags, sal_uInt32 dataSize, bool bUseWholeStream = false);
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/* EMF+ */
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void processEMFPlus( MetaCommentAction* pAct, const ActionFactoryParameters& rFactoryParms, OutDevState& rState, const CanvasSharedPtr& rCanvas );
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double setFont(css::rendering::FontRequest& aFontRequest, sal_uInt8 fontObjectId, const ActionFactoryParameters& rParms, OutDevState& rState );
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/// Render LineCap, like the start or end arrow of a polygon.
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/// @return how much we should shorten the original polygon.
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double EMFPPlusDrawLineCap(const ::basegfx::B2DPolygon& rPolygon, double fPolyLength,
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const ::basegfx::B2DPolyPolygon& rLineCap, bool isFilled, bool bStart,
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const css::rendering::StrokeAttributes& rAttributes,
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const ActionFactoryParameters& rParms, OutDevState& rState);
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void EMFPPlusDrawPolygon (const ::basegfx::B2DPolyPolygon& polygon, const ActionFactoryParameters& rParms, OutDevState& rState, const CanvasSharedPtr& rCanvas, sal_uInt32 penIndex);
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void EMFPPlusFillPolygon (::basegfx::B2DPolyPolygon& polygon, const ActionFactoryParameters& rParms, OutDevState& rState, const CanvasSharedPtr& rCanvas, bool isColor, sal_uInt32 brushIndexOrColor);
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ActionVector maActions;
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/* EMF+ */
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XForm aBaseTransform;
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XForm aWorldTransform;
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EMFPObject* aObjects [256];
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float fPageScale;
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sal_Int32 nOriginX;
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sal_Int32 nOriginY;
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sal_Int32 nHDPI;
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sal_Int32 nVDPI;
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/* EMF+ emf header info */
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sal_Int32 nFrameLeft;
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sal_Int32 nFrameTop;
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sal_Int32 nFrameRight;
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sal_Int32 nFrameBottom;
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sal_Int32 nPixX;
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sal_Int32 nPixY;
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sal_Int32 nMmX;
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sal_Int32 nMmY;
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/* multipart object data */
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bool mbMultipart;
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sal_uInt16 mMFlags;
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SvMemoryStream mMStream;
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/* emf+ graphic state stack */
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GraphicStateMap mGSStack;
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GraphicStateMap mGSContainerStack;
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};
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/// Common parameters when creating actions
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struct ActionFactoryParameters
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{
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ActionFactoryParameters( VectorOfOutDevStates& rStates,
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const CanvasSharedPtr& rCanvas,
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::VirtualDevice& rVDev,
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const Renderer::Parameters& rParms,
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sal_Int32& io_rCurrActionIndex ) :
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mrStates(rStates),
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mrCanvas(rCanvas),
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mrVDev(rVDev),
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mrParms(rParms),
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mrCurrActionIndex(io_rCurrActionIndex)
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{}
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VectorOfOutDevStates& mrStates;
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const CanvasSharedPtr& mrCanvas;
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::VirtualDevice& mrVDev;
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const Renderer::Parameters& mrParms;
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sal_Int32& mrCurrActionIndex;
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};
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}
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}
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#endif // INCLUDED_CPPCANVAS_SOURCE_INC_IMPLRENDERER_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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