From ed5640d8b587fbcfed7dd7967f3de04b37a76f26 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 11:06:44 +0200 Subject: Adding upstream version 4:7.4.7. Signed-off-by: Daniel Baumann --- starmath/source/visitors.cxx | 2727 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 2727 insertions(+) create mode 100644 starmath/source/visitors.cxx (limited to 'starmath/source/visitors.cxx') diff --git a/starmath/source/visitors.cxx b/starmath/source/visitors.cxx new file mode 100644 index 000000000..980c6346c --- /dev/null +++ b/starmath/source/visitors.cxx @@ -0,0 +1,2727 @@ +/* -*- 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/. + */ + +#include +#include +#include +#include +#include +#include "tmpdevice.hxx" +#include + +#include + +// SmDefaultingVisitor + +void SmDefaultingVisitor::Visit( SmTableNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmBraceNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmBracebodyNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmOperNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmAlignNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmAttributeNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmFontNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmUnHorNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmBinHorNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmBinVerNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmBinDiagonalNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmSubSupNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmMatrixNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmPlaceNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmTextNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmSpecialNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmGlyphSpecialNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmMathSymbolNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmBlankNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmErrorNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmLineNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmExpressionNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmPolyLineNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmRootNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmRootSymbolNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmRectangleNode* pNode ) +{ + DefaultVisit( pNode ); +} + +void SmDefaultingVisitor::Visit( SmVerticalBraceNode* pNode ) +{ + DefaultVisit( pNode ); +} + +// SmCaretDrawingVisitor + +SmCaretDrawingVisitor::SmCaretDrawingVisitor( OutputDevice& rDevice, + SmCaretPos position, + Point offset, + bool caretVisible ) + : mrDev( rDevice ) + , maPos( position ) + , maOffset( offset ) + , mbCaretVisible( caretVisible ) +{ + SAL_WARN_IF( !position.IsValid(), "starmath", "Cannot draw invalid position!" ); + if( !position.IsValid( ) ) + return; + + //Save device state + mrDev.Push( vcl::PushFlags::FONT | vcl::PushFlags::MAPMODE | vcl::PushFlags::LINECOLOR | vcl::PushFlags::FILLCOLOR | vcl::PushFlags::TEXTCOLOR ); + + maPos.pSelectedNode->Accept( this ); + //Restore device state + mrDev.Pop( ); +} + +void SmCaretDrawingVisitor::Visit( SmTextNode* pNode ) +{ + tools::Long i = maPos.nIndex; + + mrDev.SetFont( pNode->GetFont( ) ); + + //Find the line + SmNode* pLine = SmCursor::FindTopMostNodeInLine( pNode ); + + //Find coordinates + tools::Long left = pNode->GetLeft( ) + mrDev.GetTextWidth( pNode->GetText( ), 0, i ) + maOffset.X( ); + tools::Long top = pLine->GetTop( ) + maOffset.Y( ); + tools::Long height = pLine->GetHeight( ); + tools::Long left_line = pLine->GetLeft( ) + maOffset.X( ); + tools::Long right_line = pLine->GetRight( ) + maOffset.X( ); + + //Set color + mrDev.SetLineColor( COL_BLACK ); + + if ( mbCaretVisible ) { + //Draw vertical line + Point p1( left, top ); + Point p2( left, top + height ); + mrDev.DrawLine( p1, p2 ); + } + + //Underline the line + Point aLeft( left_line, top + height ); + Point aRight( right_line, top + height ); + mrDev.DrawLine( aLeft, aRight ); +} + +void SmCaretDrawingVisitor::DefaultVisit( SmNode* pNode ) +{ + //Find the line + SmNode* pLine = SmCursor::FindTopMostNodeInLine( pNode ); + + //Find coordinates + tools::Long left = pNode->GetLeft( ) + maOffset.X( ) + ( maPos.nIndex == 1 ? pNode->GetWidth( ) : 0 ); + tools::Long top = pLine->GetTop( ) + maOffset.Y( ); + tools::Long height = pLine->GetHeight( ); + tools::Long left_line = pLine->GetLeft( ) + maOffset.X( ); + tools::Long right_line = pLine->GetRight( ) + maOffset.X( ); + + //Set color + mrDev.SetLineColor( COL_BLACK ); + + if ( mbCaretVisible ) { + //Draw vertical line + Point p1( left, top ); + Point p2( left, top + height ); + mrDev.DrawLine( p1, p2 ); + } + + //Underline the line + Point aLeft( left_line, top + height ); + Point aRight( right_line, top + height ); + mrDev.DrawLine( aLeft, aRight ); +} + +// SmCaretPos2LineVisitor + +void SmCaretPos2LineVisitor::Visit( SmTextNode* pNode ) +{ + //Save device state + mpDev->Push( vcl::PushFlags::FONT | vcl::PushFlags::TEXTCOLOR ); + + tools::Long i = maPos.nIndex; + + mpDev->SetFont( pNode->GetFont( ) ); + + //Find coordinates + tools::Long left = pNode->GetLeft( ) + mpDev->GetTextWidth( pNode->GetText( ), 0, i ); + tools::Long top = pNode->GetTop( ); + tools::Long height = pNode->GetHeight( ); + + maLine = SmCaretLine( left, top, height ); + + //Restore device state + mpDev->Pop( ); +} + +void SmCaretPos2LineVisitor::DefaultVisit( SmNode* pNode ) +{ + //Vertical line ( code from SmCaretDrawingVisitor ) + Point p1 = pNode->GetTopLeft( ); + if( maPos.nIndex == 1 ) + p1.Move( pNode->GetWidth( ), 0 ); + + maLine = SmCaretLine( p1.X( ), p1.Y( ), pNode->GetHeight( ) ); +} + + +// SmDrawingVisitor + +void SmDrawingVisitor::Visit( SmTableNode* pNode ) +{ + DrawChildren( pNode ); +} + +void SmDrawingVisitor::Visit( SmBraceNode* pNode ) +{ + DrawChildren( pNode ); +} + +void SmDrawingVisitor::Visit( SmBracebodyNode* pNode ) +{ + DrawChildren( pNode ); +} + +void SmDrawingVisitor::Visit( SmOperNode* pNode ) +{ + DrawChildren( pNode ); +} + +void SmDrawingVisitor::Visit( SmAlignNode* pNode ) +{ + DrawChildren( pNode ); +} + +void SmDrawingVisitor::Visit( SmAttributeNode* pNode ) +{ + DrawChildren( pNode ); +} + +void SmDrawingVisitor::Visit( SmFontNode* pNode ) +{ + DrawChildren( pNode ); +} + +void SmDrawingVisitor::Visit( SmUnHorNode* pNode ) +{ + DrawChildren( pNode ); +} + +void SmDrawingVisitor::Visit( SmBinHorNode* pNode ) +{ + DrawChildren( pNode ); +} + +void SmDrawingVisitor::Visit( SmBinVerNode* pNode ) +{ + DrawChildren( pNode ); +} + +void SmDrawingVisitor::Visit( SmBinDiagonalNode* pNode ) +{ + DrawChildren( pNode ); +} + +void SmDrawingVisitor::Visit( SmSubSupNode* pNode ) +{ + DrawChildren( pNode ); +} + +void SmDrawingVisitor::Visit( SmMatrixNode* pNode ) +{ + DrawChildren( pNode ); +} + +void SmDrawingVisitor::Visit( SmPlaceNode* pNode ) +{ + DrawSpecialNode( pNode ); +} + +void SmDrawingVisitor::Visit( SmTextNode* pNode ) +{ + DrawTextNode( pNode ); +} + +void SmDrawingVisitor::Visit( SmSpecialNode* pNode ) +{ + DrawSpecialNode( pNode ); +} + +void SmDrawingVisitor::Visit( SmGlyphSpecialNode* pNode ) +{ + DrawSpecialNode( pNode ); +} + +void SmDrawingVisitor::Visit( SmMathSymbolNode* pNode ) +{ + DrawSpecialNode( pNode ); +} + +void SmDrawingVisitor::Visit( SmBlankNode* ) +{ +} + +void SmDrawingVisitor::Visit( SmErrorNode* pNode ) +{ + DrawSpecialNode( pNode ); +} + +void SmDrawingVisitor::Visit( SmLineNode* pNode ) +{ + DrawChildren( pNode ); +} + +void SmDrawingVisitor::Visit( SmExpressionNode* pNode ) +{ + DrawChildren( pNode ); +} + +void SmDrawingVisitor::Visit( SmRootNode* pNode ) +{ + DrawChildren( pNode ); +} + +void SmDrawingVisitor::Visit( SmVerticalBraceNode* pNode ) +{ + DrawChildren( pNode ); +} + +void SmDrawingVisitor::Visit( SmRootSymbolNode* pNode ) +{ + if ( pNode->IsPhantom( ) ) + return; + + // draw root-sign itself + DrawSpecialNode( pNode ); + + SmTmpDevice aTmpDev( mrDev, true ); + aTmpDev.SetFillColor( pNode->GetFont( ).GetColor( ) ); + mrDev.SetLineColor( ); + aTmpDev.SetFont( pNode->GetFont( ) ); + + // since the width is always unscaled it corresponds to the _original_ + // _unscaled_ font height to be used, we use that to calculate the + // bar height. Thus it is independent of the arguments height. + // ( see display of sqrt QQQ versus sqrt stack{Q#Q#Q#Q} ) + tools::Long nBarHeight = pNode->GetWidth( ) * 7 / 100; + tools::Long nBarWidth = pNode->GetBodyWidth( ) + pNode->GetBorderWidth( ); + Point aBarOffset( pNode->GetWidth( ), +pNode->GetBorderWidth( ) ); + Point aBarPos( maPosition + aBarOffset ); + + tools::Rectangle aBar( aBarPos, Size( nBarWidth, nBarHeight ) ); + //! avoid GROWING AND SHRINKING of drawn rectangle when constantly + //! increasing zoomfactor. + // This is done by shifting its output-position to a point that + // corresponds exactly to a pixel on the output device. + Point aDrawPos( mrDev.PixelToLogic( mrDev.LogicToPixel( aBar.TopLeft( ) ) ) ); + aBar.SetPos( aDrawPos ); + + mrDev.DrawRect( aBar ); +} + +void SmDrawingVisitor::Visit( SmPolyLineNode* pNode ) +{ + if ( pNode->IsPhantom( ) ) + return; + + tools::Long nBorderwidth = pNode->GetFont( ).GetBorderWidth( ); + + LineInfo aInfo; + aInfo.SetWidth( pNode->GetWidth( ) - 2 * nBorderwidth ); + + Point aOffset ( Point( ) - pNode->GetPolygon( ).GetBoundRect( ).TopLeft( ) + + Point( nBorderwidth, nBorderwidth ) ), + aPos ( maPosition + aOffset ); + pNode->GetPolygon( ).Move( aPos.X( ), aPos.Y( ) ); //Works because Polygon wraps a pointer + + SmTmpDevice aTmpDev ( mrDev, false ); + aTmpDev.SetLineColor( pNode->GetFont( ).GetColor( ) ); + + mrDev.DrawPolyLine( pNode->GetPolygon( ), aInfo ); +} + +void SmDrawingVisitor::Visit( SmRectangleNode* pNode ) +{ + if ( pNode->IsPhantom( ) ) + return; + + SmTmpDevice aTmpDev ( mrDev, false ); + aTmpDev.SetFillColor( pNode->GetFont( ).GetColor( ) ); + mrDev.SetLineColor( ); + aTmpDev.SetFont( pNode->GetFont( ) ); + + sal_uLong nTmpBorderWidth = pNode->GetFont( ).GetBorderWidth( ); + + // get rectangle and remove borderspace + tools::Rectangle aTmp ( pNode->AsRectangle( ) + maPosition - pNode->GetTopLeft( ) ); + aTmp.AdjustLeft(nTmpBorderWidth ); + aTmp.AdjustRight( -sal_Int32(nTmpBorderWidth) ); + aTmp.AdjustTop(nTmpBorderWidth ); + aTmp.AdjustBottom( -sal_Int32(nTmpBorderWidth) ); + + SAL_WARN_IF( aTmp.IsEmpty(), "starmath", "Empty rectangle" ); + + //! avoid GROWING AND SHRINKING of drawn rectangle when constantly + //! increasing zoomfactor. + // This is done by shifting its output-position to a point that + // corresponds exactly to a pixel on the output device. + Point aPos ( mrDev.PixelToLogic( mrDev.LogicToPixel( aTmp.TopLeft( ) ) ) ); + aTmp.SetPos( aPos ); + + mrDev.DrawRect( aTmp ); +} + +void SmDrawingVisitor::DrawTextNode( SmTextNode* pNode ) +{ + if ( pNode->IsPhantom() || pNode->GetText().isEmpty() || pNode->GetText()[0] == '\0' ) + return; + + SmTmpDevice aTmpDev ( mrDev, false ); + aTmpDev.SetFont( pNode->GetFont( ) ); + + Point aPos ( maPosition ); + aPos.AdjustY(pNode->GetBaselineOffset( ) ); + // round to pixel coordinate + aPos = mrDev.PixelToLogic( mrDev.LogicToPixel( aPos ) ); + + mrDev.DrawStretchText( aPos, pNode->GetWidth( ), pNode->GetText( ) ); +} + +void SmDrawingVisitor::DrawSpecialNode( SmSpecialNode* pNode ) +{ + //! since this chars might come from any font, that we may not have + //! set to ALIGN_BASELINE yet, we do it now. + pNode->GetFont( ).SetAlignment( ALIGN_BASELINE ); + + DrawTextNode( pNode ); +} + +void SmDrawingVisitor::DrawChildren( SmStructureNode* pNode ) +{ + if ( pNode->IsPhantom( ) ) + return; + + Point rPosition = maPosition; + + for( auto pChild : *pNode ) + { + if(!pChild) + continue; + Point aOffset ( pChild->GetTopLeft( ) - pNode->GetTopLeft( ) ); + maPosition = rPosition + aOffset; + pChild->Accept( this ); + } +} + +// SmSetSelectionVisitor + +SmSetSelectionVisitor::SmSetSelectionVisitor( SmCaretPos startPos, SmCaretPos endPos, SmNode* pTree) + : maStartPos(startPos) + , maEndPos(endPos) + , mbSelecting(false) +{ + //Assume that pTree is a SmTableNode + SAL_WARN_IF(pTree->GetType() != SmNodeType::Table, "starmath", "pTree should be a SmTableNode!"); + //Visit root node, this is special as this node cannot be selected, but its children can! + if(pTree->GetType() == SmNodeType::Table){ + //Change state if maStartPos is in front of this node + if( maStartPos.pSelectedNode == pTree && maStartPos.nIndex == 0 ) + mbSelecting = !mbSelecting; + //Change state if maEndPos is in front of this node + if( maEndPos.pSelectedNode == pTree && maEndPos.nIndex == 0 ) + mbSelecting = !mbSelecting; + SAL_WARN_IF(mbSelecting, "starmath", "Caret positions needed to set mbSelecting about, shouldn't be possible!"); + + //Visit lines + for( auto pChild : *static_cast(pTree) ) + { + if(!pChild) + continue; + pChild->Accept( this ); + //If we started a selection in this line and it haven't ended, we do that now! + if(mbSelecting) { + mbSelecting = false; + SetSelectedOnAll(pChild); + //Set maStartPos and maEndPos to invalid positions, this ensures that an unused + //start or end (because we forced end above), doesn't start a new selection. + maStartPos = maEndPos = SmCaretPos(); + } + } + //Check if pTree isn't selected + SAL_WARN_IF(pTree->IsSelected(), "starmath", "pTree should never be selected!"); + //Discard the selection if there's a bug (it's better than crashing) + if(pTree->IsSelected()) + SetSelectedOnAll(pTree, false); + }else //This shouldn't happen, but I don't see any reason to die if it does + pTree->Accept(this); +} + +void SmSetSelectionVisitor::SetSelectedOnAll( SmNode* pSubTree, bool IsSelected ) { + pSubTree->SetSelected( IsSelected ); + + if(pSubTree->GetNumSubNodes() == 0) + return; + //Quick BFS to set all selections + for( auto pChild : *static_cast(pSubTree) ) + { + if(!pChild) + continue; + SetSelectedOnAll( pChild, IsSelected ); + } +} + +void SmSetSelectionVisitor::DefaultVisit( SmNode* pNode ) { + //Change state if maStartPos is in front of this node + if( maStartPos.pSelectedNode == pNode && maStartPos.nIndex == 0 ) + mbSelecting = !mbSelecting; + //Change state if maEndPos is in front of this node + if( maEndPos.pSelectedNode == pNode && maEndPos.nIndex == 0 ) + mbSelecting = !mbSelecting; + + //Cache current state + bool WasSelecting = mbSelecting; + bool ChangedState = false; + + //Set selected + pNode->SetSelected( mbSelecting ); + + //Visit children + if(pNode->GetNumSubNodes() > 0) + { + for( auto pChild : *static_cast(pNode) ) + { + if(!pChild) + continue; + pChild->Accept( this ); + ChangedState = ( WasSelecting != mbSelecting ) || ChangedState; + } + } + + //If state changed + if( ChangedState ) + { + //Select this node and all of its children + //(Make exception for SmBracebodyNode) + if( pNode->GetType() != SmNodeType::Bracebody || + !pNode->GetParent() || + pNode->GetParent()->GetType() != SmNodeType::Brace ) + SetSelectedOnAll( pNode ); + else + SetSelectedOnAll( pNode->GetParent() ); + /* If the equation is: sqrt{2 + 4} + 5 + * And the selection is: sqrt{2 + [4} +] 5 + * Where [ denotes maStartPos and ] denotes maEndPos + * Then the sqrt node should be selected, so that the + * effective selection is: [sqrt{2 + 4} +] 5 + * The same is the case if we swap maStartPos and maEndPos. + */ + } + + //Change state if maStartPos is after this node + if( maStartPos.pSelectedNode == pNode && maStartPos.nIndex == 1 ) + { + mbSelecting = !mbSelecting; + } + //Change state if maEndPos is after of this node + if( maEndPos.pSelectedNode == pNode && maEndPos.nIndex == 1 ) + { + mbSelecting = !mbSelecting; + } +} + +void SmSetSelectionVisitor::VisitCompositionNode( SmStructureNode* pNode ) +{ + //Change state if maStartPos is in front of this node + if( maStartPos.pSelectedNode == pNode && maStartPos.nIndex == 0 ) + mbSelecting = !mbSelecting; + //Change state if maEndPos is in front of this node + if( maEndPos.pSelectedNode == pNode && maEndPos.nIndex == 0 ) + mbSelecting = !mbSelecting; + + //Cache current state + bool WasSelecting = mbSelecting; + + //Visit children + for( auto pChild : *pNode ) + { + if(!pChild) + continue; + pChild->Accept( this ); + } + + //Set selected, if everything was selected + pNode->SetSelected( WasSelecting && mbSelecting ); + + //Change state if maStartPos is after this node + if( maStartPos.pSelectedNode == pNode && maStartPos.nIndex == 1 ) + mbSelecting = !mbSelecting; + //Change state if maEndPos is after of this node + if( maEndPos.pSelectedNode == pNode && maEndPos.nIndex == 1 ) + mbSelecting = !mbSelecting; +} + +void SmSetSelectionVisitor::Visit( SmTextNode* pNode ) { + tools::Long i1 = -1, + i2 = -1; + if( maStartPos.pSelectedNode == pNode ) + i1 = maStartPos.nIndex; + if( maEndPos.pSelectedNode == pNode ) + i2 = maEndPos.nIndex; + + tools::Long start, end; + pNode->SetSelected(true); + if( i1 != -1 && i2 != -1 ) { + start = std::min(i1, i2); + end = std::max(i1, i2); + } else if( mbSelecting && i1 != -1 ) { + start = 0; + end = i1; + mbSelecting = false; + } else if( mbSelecting && i2 != -1 ) { + start = 0; + end = i2; + mbSelecting = false; + } else if( !mbSelecting && i1 != -1 ) { + start = i1; + end = pNode->GetText().getLength(); + mbSelecting = true; + } else if( !mbSelecting && i2 != -1 ) { + start = i2; + end = pNode->GetText().getLength(); + mbSelecting = true; + } else if( mbSelecting ) { + start = 0; + end = pNode->GetText().getLength(); + } else { + pNode->SetSelected( false ); + start = 0; + end = 0; + } + pNode->SetSelected( start != end ); + pNode->SetSelectionStart( start ); + pNode->SetSelectionEnd( end ); +} + +void SmSetSelectionVisitor::Visit( SmExpressionNode* pNode ) { + VisitCompositionNode( pNode ); +} + +void SmSetSelectionVisitor::Visit( SmLineNode* pNode ) { + VisitCompositionNode( pNode ); +} + +void SmSetSelectionVisitor::Visit( SmAlignNode* pNode ) { + VisitCompositionNode( pNode ); +} + +void SmSetSelectionVisitor::Visit( SmBinHorNode* pNode ) { + VisitCompositionNode( pNode ); +} + +void SmSetSelectionVisitor::Visit( SmUnHorNode* pNode ) { + VisitCompositionNode( pNode ); +} + +void SmSetSelectionVisitor::Visit( SmFontNode* pNode ) { + VisitCompositionNode( pNode ); +} + +// SmCaretPosGraphBuildingVisitor + +SmCaretPosGraphBuildingVisitor::SmCaretPosGraphBuildingVisitor( SmNode* pRootNode ) + : mpRightMost(nullptr) + , mpGraph(new SmCaretPosGraph) +{ + //pRootNode should always be a table + SAL_WARN_IF( pRootNode->GetType( ) != SmNodeType::Table, "starmath", "pRootNode must be a table node"); + //Handle the special case where SmNodeType::Table is used a rootnode + if( pRootNode->GetType( ) == SmNodeType::Table ){ + //Children are SmLineNodes + //Or so I thought... Apparently, the children can be instances of SmExpression + //especially if there's an error in the formula... So here we go, a simple work around. + for( auto pChild : *static_cast(pRootNode) ) + { + if(!pChild) + continue; + mpRightMost = mpGraph->Add( SmCaretPos( pChild, 0 ) ); + pChild->Accept( this ); + } + }else + pRootNode->Accept(this); +} + +SmCaretPosGraphBuildingVisitor::~SmCaretPosGraphBuildingVisitor() +{ +} + +void SmCaretPosGraphBuildingVisitor::Visit( SmLineNode* pNode ){ + for( auto pChild : *pNode ) + { + if(!pChild) + continue; + pChild->Accept( this ); + } +} + +/** Build SmCaretPosGraph for SmTableNode + * This method covers cases where SmTableNode is used in a binom or stack, + * the special case where it is used as root node for the entire formula is + * handled in the constructor. + */ +void SmCaretPosGraphBuildingVisitor::Visit( SmTableNode* pNode ){ + SmCaretPosGraphEntry *left = mpRightMost, + *right = mpGraph->Add( SmCaretPos( pNode, 1) ); + bool bIsFirst = true; + for( auto pChild : *pNode ) + { + if(!pChild) + continue; + mpRightMost = mpGraph->Add( SmCaretPos( pChild, 0 ), left); + if(bIsFirst) + left->SetRight(mpRightMost); + pChild->Accept( this ); + mpRightMost->SetRight(right); + if(bIsFirst) + right->SetLeft(mpRightMost); + bIsFirst = false; + } + mpRightMost = right; +} + +/** Build SmCaretPosGraph for SmSubSupNode + * + * The child positions in a SubSupNode, where H is the body: + * \code + * CSUP + * + * LSUP H H RSUP + * H H + * HHHH + * H H + * LSUB H H RSUB + * + * CSUB + * \endcode + * + * Graph over these, where "left" is before the SmSubSupNode and "right" is after: + * \dot + * digraph Graph{ + * left -> H; + * H -> right; + * LSUP -> H; + * LSUB -> H; + * CSUP -> right; + * CSUB -> right; + * RSUP -> right; + * RSUB -> right; + * }; + * \enddot + * + */ +void SmCaretPosGraphBuildingVisitor::Visit( SmSubSupNode* pNode ) +{ + SmCaretPosGraphEntry *left, + *right, + *bodyLeft, + *bodyRight; + + assert(mpRightMost); + left = mpRightMost; + + //Create bodyLeft + SAL_WARN_IF( !pNode->GetBody(), "starmath", "SmSubSupNode Doesn't have a body!" ); + bodyLeft = mpGraph->Add( SmCaretPos( pNode->GetBody( ), 0 ), left ); + left->SetRight( bodyLeft ); //TODO: Don't make this if LSUP or LSUB are NULL ( not sure??? ) + + //Create right + right = mpGraph->Add( SmCaretPos( pNode, 1 ) ); + + //Visit the body, to get bodyRight + mpRightMost = bodyLeft; + pNode->GetBody( )->Accept( this ); + bodyRight = mpRightMost; + bodyRight->SetRight( right ); + right->SetLeft( bodyRight ); + + //If there's an LSUP + SmNode* pChild = pNode->GetSubSup( LSUP ); + if( pChild ){ + SmCaretPosGraphEntry *cLeft; //Child left + cLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), left ); + + mpRightMost = cLeft; + pChild->Accept( this ); + + mpRightMost->SetRight( bodyLeft ); + } + //If there's an LSUB + pChild = pNode->GetSubSup( LSUB ); + if( pChild ){ + SmCaretPosGraphEntry *cLeft; //Child left + cLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), left ); + + mpRightMost = cLeft; + pChild->Accept( this ); + + mpRightMost->SetRight( bodyLeft ); + } + //If there's a CSUP + pChild = pNode->GetSubSup( CSUP ); + if( pChild ){ + SmCaretPosGraphEntry *cLeft; //Child left + cLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), left ); + + mpRightMost = cLeft; + pChild->Accept( this ); + + mpRightMost->SetRight( right ); + } + //If there's a CSUB + pChild = pNode->GetSubSup( CSUB ); + if( pChild ){ + SmCaretPosGraphEntry *cLeft; //Child left + cLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), left ); + + mpRightMost = cLeft; + pChild->Accept( this ); + + mpRightMost->SetRight( right ); + } + //If there's an RSUP + pChild = pNode->GetSubSup( RSUP ); + if( pChild ){ + SmCaretPosGraphEntry *cLeft; //Child left + cLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), bodyRight ); + + mpRightMost = cLeft; + pChild->Accept( this ); + + mpRightMost->SetRight( right ); + } + //If there's an RSUB + pChild = pNode->GetSubSup( RSUB ); + if( pChild ){ + SmCaretPosGraphEntry *cLeft; //Child left + cLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), bodyRight ); + + mpRightMost = cLeft; + pChild->Accept( this ); + + mpRightMost->SetRight( right ); + } + + //Set return parameters + mpRightMost = right; +} + +/** Build caret position for SmOperNode + * + * If first child is an SmSubSupNode we will ignore its + * body, as this body is a SmMathSymbol, for SUM, INT or similar + * that shouldn't be subject to modification. + * If first child is not a SmSubSupNode, ignore it completely + * as it is a SmMathSymbol. + * + * The child positions in a SmOperNode, where H is symbol, e.g. int, sum or similar: + * \code + * TO + * + * LSUP H H RSUP BBB BB BBB B B + * H H B B B B B B B B + * HHHH BBB B B B B B + * H H B B B B B B B + * LSUB H H RSUB BBB BB BBB B + * + * FROM + * \endcode + * Notice, CSUP, etc. are actually grandchildren, but inorder to ignore H, these are visited + * from here. If they are present, that is if pOper is an instance of SmSubSupNode. + * + * Graph over these, where "left" is before the SmOperNode and "right" is after: + * \dot + * digraph Graph{ + * left -> BODY; + * BODY -> right; + * LSUP -> BODY; + * LSUB -> BODY; + * TO -> BODY; + * FROM -> BODY; + * RSUP -> BODY; + * RSUB -> BODY; + * }; + * \enddot + */ +void SmCaretPosGraphBuildingVisitor::Visit( SmOperNode* pNode ) +{ + SmNode *pOper = pNode->GetSubNode( 0 ), + *pBody = pNode->GetSubNode( 1 ); + + SmCaretPosGraphEntry *left = mpRightMost, + *bodyLeft, + *bodyRight, + *right; + //Create body left + bodyLeft = mpGraph->Add( SmCaretPos( pBody, 0 ), left ); + left->SetRight( bodyLeft ); + + //Visit body, get bodyRight + mpRightMost = bodyLeft; + pBody->Accept( this ); + bodyRight = mpRightMost; + + //Create right + right = mpGraph->Add( SmCaretPos( pNode, 1 ), bodyRight ); + bodyRight->SetRight( right ); + + //Get subsup pNode if any + SmSubSupNode* pSubSup = pOper->GetType( ) == SmNodeType::SubSup ? static_cast(pOper) : nullptr; + + if( pSubSup ) { + SmNode* pChild = pSubSup->GetSubSup( LSUP ); + if( pChild ) { + //Create position in front of pChild + SmCaretPosGraphEntry *childLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), left ); + //Visit pChild + mpRightMost = childLeft; + pChild->Accept( this ); + //Set right on mpRightMost from pChild + mpRightMost->SetRight( bodyLeft ); + } + + pChild = pSubSup->GetSubSup( LSUB ); + if( pChild ) { + //Create position in front of pChild + SmCaretPosGraphEntry *childLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), left ); + //Visit pChild + mpRightMost = childLeft; + pChild->Accept( this ); + //Set right on mpRightMost from pChild + mpRightMost->SetRight( bodyLeft ); + } + + pChild = pSubSup->GetSubSup( CSUP ); + if ( pChild ) {//TO + //Create position in front of pChild + SmCaretPosGraphEntry *childLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), left ); + //Visit pChild + mpRightMost = childLeft; + pChild->Accept( this ); + //Set right on mpRightMost from pChild + mpRightMost->SetRight( bodyLeft ); + } + + pChild = pSubSup->GetSubSup( CSUB ); + if( pChild ) { //FROM + //Create position in front of pChild + SmCaretPosGraphEntry *childLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), left ); + //Visit pChild + mpRightMost = childLeft; + pChild->Accept( this ); + //Set right on mpRightMost from pChild + mpRightMost->SetRight( bodyLeft ); + } + + pChild = pSubSup->GetSubSup( RSUP ); + if ( pChild ) { + //Create position in front of pChild + SmCaretPosGraphEntry *childLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), left ); + //Visit pChild + mpRightMost = childLeft; + pChild->Accept( this ); + //Set right on mpRightMost from pChild + mpRightMost->SetRight( bodyLeft ); + } + + pChild = pSubSup->GetSubSup( RSUB ); + if ( pChild ) { + //Create position in front of pChild + SmCaretPosGraphEntry *childLeft = mpGraph->Add( SmCaretPos( pChild, 0 ), left ); + //Visit pChild + mpRightMost = childLeft; + pChild->Accept( this ); + //Set right on mpRightMost from pChild + mpRightMost->SetRight( bodyLeft ); + } + } + + //Return right + mpRightMost = right; +} + +void SmCaretPosGraphBuildingVisitor::Visit( SmMatrixNode* pNode ) +{ + SmCaretPosGraphEntry *left = mpRightMost, + *right = mpGraph->Add( SmCaretPos( pNode, 1 ) ); + + for (size_t i = 0; i < pNode->GetNumRows(); ++i) + { + SmCaretPosGraphEntry* r = left; + for (size_t j = 0; j < pNode->GetNumCols(); ++j) + { + SmNode* pSubNode = pNode->GetSubNode( i * pNode->GetNumCols( ) + j ); + + mpRightMost = mpGraph->Add( SmCaretPos( pSubNode, 0 ), r ); + if( j != 0 || ( pNode->GetNumRows() - 1U ) / 2 == i ) + r->SetRight( mpRightMost ); + + pSubNode->Accept( this ); + + r = mpRightMost; + } + mpRightMost->SetRight( right ); + if( ( pNode->GetNumRows() - 1U ) / 2 == i ) + right->SetLeft( mpRightMost ); + } + + mpRightMost = right; +} + +/** Build SmCaretPosGraph for SmTextNode + * + * Lines in an SmTextNode: + * \code + * A B C + * \endcode + * Where A B and C are characters in the text. + * + * Graph over these, where "left" is before the SmTextNode and "right" is after: + * \dot + * digraph Graph{ + * left -> A; + * A -> B + * B -> right; + * }; + * \enddot + * Notice that C and right is the same position here. + */ +void SmCaretPosGraphBuildingVisitor::Visit( SmTextNode* pNode ) +{ + SAL_WARN_IF( pNode->GetText().isEmpty(), "starmath", "Empty SmTextNode is bad" ); + + int size = pNode->GetText().getLength(); + for( int i = 1; i <= size; i++ ){ + SmCaretPosGraphEntry* pRight = mpRightMost; + mpRightMost = mpGraph->Add( SmCaretPos( pNode, i ), pRight ); + pRight->SetRight( mpRightMost ); + } +} + +/** Build SmCaretPosGraph for SmBinVerNode + * + * Lines in an SmBinVerNode: + * \code + * A + * ----- + * B + * \endcode + * + * Graph over these, where "left" is before the SmBinVerNode and "right" is after: + * \dot + * digraph Graph{ + * left -> A; + * A -> right; + * B -> right; + * }; + * \enddot + */ +void SmCaretPosGraphBuildingVisitor::Visit( SmBinVerNode* pNode ) +{ + //None if these children can be NULL, see SmBinVerNode::Arrange + SmNode *pNum = pNode->GetSubNode( 0 ), + *pDenom = pNode->GetSubNode( 2 ); + + SmCaretPosGraphEntry *left, + *right, + *numLeft, + *denomLeft; + + assert(mpRightMost); + //Set left + left = mpRightMost; + + //Create right + right = mpGraph->Add( SmCaretPos( pNode, 1 ) ); + + //Create numLeft + numLeft = mpGraph->Add( SmCaretPos( pNum, 0 ), left ); + left->SetRight( numLeft ); + + //Visit pNum + mpRightMost = numLeft; + pNum->Accept( this ); + mpRightMost->SetRight( right ); + right->SetLeft( mpRightMost ); + + //Create denomLeft + denomLeft = mpGraph->Add( SmCaretPos( pDenom, 0 ), left ); + + //Visit pDenom + mpRightMost = denomLeft; + pDenom->Accept( this ); + mpRightMost->SetRight( right ); + + //Set return parameter + mpRightMost = right; +} + +/** Build SmCaretPosGraph for SmVerticalBraceNode + * + * Lines in an SmVerticalBraceNode: + * \code + * pScript + * ________ + * / \ + * pBody + * \endcode + * + */ +void SmCaretPosGraphBuildingVisitor::Visit( SmVerticalBraceNode* pNode ) +{ + SmNode *pBody = pNode->Body(), + *pScript = pNode->Script(); + //None of these children can be NULL + + SmCaretPosGraphEntry *left, + *bodyLeft, + *scriptLeft, + *right; + + left = mpRightMost; + + //Create right + right = mpGraph->Add( SmCaretPos( pNode, 1 ) ); + + //Create bodyLeft + bodyLeft = mpGraph->Add( SmCaretPos( pBody, 0 ), left ); + left->SetRight( bodyLeft ); + mpRightMost = bodyLeft; + pBody->Accept( this ); + mpRightMost->SetRight( right ); + right->SetLeft( mpRightMost ); + + //Create script + scriptLeft = mpGraph->Add( SmCaretPos( pScript, 0 ), left ); + mpRightMost = scriptLeft; + pScript->Accept( this ); + mpRightMost->SetRight( right ); + + //Set return value + mpRightMost = right; +} + +/** Build SmCaretPosGraph for SmBinDiagonalNode + * + * Lines in an SmBinDiagonalNode: + * \code + * A / + * / + * / B + * \endcode + * Where A and B are lines. + * + * Used in formulas such as "A wideslash B" + */ +void SmCaretPosGraphBuildingVisitor::Visit( SmBinDiagonalNode* pNode ) +{ + SmNode *A = pNode->GetSubNode( 0 ), + *B = pNode->GetSubNode( 1 ); + + SmCaretPosGraphEntry *left, + *leftA, + *rightA, + *leftB, + *right; + left = mpRightMost; + + //Create right + right = mpGraph->Add( SmCaretPos( pNode, 1 ) ); + + //Create left A + leftA = mpGraph->Add( SmCaretPos( A, 0 ), left ); + left->SetRight( leftA ); + + //Visit A + mpRightMost = leftA; + A->Accept( this ); + rightA = mpRightMost; + + //Create left B + leftB = mpGraph->Add( SmCaretPos( B, 0 ), rightA ); + rightA->SetRight( leftB ); + + //Visit B + mpRightMost = leftB; + B->Accept( this ); + mpRightMost->SetRight( right ); + right->SetLeft( mpRightMost ); + + //Set return value + mpRightMost = right; +} + +//Straight forward ( I think ) +void SmCaretPosGraphBuildingVisitor::Visit( SmBinHorNode* pNode ) +{ + for( auto pChild : *pNode ) + { + if(!pChild) + continue; + pChild->Accept( this ); + } +} +void SmCaretPosGraphBuildingVisitor::Visit( SmUnHorNode* pNode ) +{ + // Unary operator node + for( auto pChild : *pNode ) + { + if(!pChild) + continue; + pChild->Accept( this ); + } +} + +void SmCaretPosGraphBuildingVisitor::Visit( SmExpressionNode* pNode ) +{ + for( auto pChild : *pNode ) + { + if(!pChild) + continue; + pChild->Accept( this ); + } +} + +void SmCaretPosGraphBuildingVisitor::Visit( SmFontNode* pNode ) +{ + //Has only got one child, should act as an expression if possible + for( auto pChild : *pNode ) + { + if(!pChild) + continue; + pChild->Accept( this ); + } +} + +/** Build SmCaretPosGraph for SmBracebodyNode + * Acts as an SmExpressionNode + * + * Below is an example of a formula tree that has multiple children for SmBracebodyNode + * \dot + * digraph { + * labelloc = "t"; + * label= "Equation: \"lbrace i mline i in setZ rbrace\""; + * n0 [label="SmTableNode"]; + * n0 -> n1 [label="0"]; + * n1 [label="SmLineNode"]; + * n1 -> n2 [label="0"]; + * n2 [label="SmExpressionNode"]; + * n2 -> n3 [label="0"]; + * n3 [label="SmBraceNode"]; + * n3 -> n4 [label="0"]; + * n4 [label="SmMathSymbolNode: {"]; + * n3 -> n5 [label="1"]; + * n5 [label="SmBracebodyNode"]; + * n5 -> n6 [label="0"]; + * n6 [label="SmExpressionNode"]; + * n6 -> n7 [label="0"]; + * n7 [label="SmTextNode: i"]; + * n5 -> n8 [label="1"]; + * n8 [label="SmMathSymbolNode: |"]; // Unicode "VERTICAL LINE" + * n5 -> n9 [label="2"]; + * n9 [label="SmExpressionNode"]; + * n9 -> n10 [label="0"]; + * n10 [label="SmBinHorNode"]; + * n10 -> n11 [label="0"]; + * n11 [label="SmTextNode: i"]; + * n10 -> n12 [label="1"]; + * n12 [label="SmMathSymbolNode: ∈"]; // Unicode "ELEMENT OF" + * n10 -> n13 [label="2"]; + * n13 [label="SmMathSymbolNode: ℤ"]; // Unicode "DOUBLE-STRUCK CAPITAL Z" + * n3 -> n14 [label="2"]; + * n14 [label="SmMathSymbolNode: }"]; + * } + * \enddot + */ +void SmCaretPosGraphBuildingVisitor::Visit( SmBracebodyNode* pNode ) +{ + for( auto pChild : *pNode ) + { + if(!pChild) + continue; + SmCaretPosGraphEntry* pStart = mpGraph->Add( SmCaretPos( pChild, 0), mpRightMost ); + mpRightMost->SetRight( pStart ); + mpRightMost = pStart; + pChild->Accept( this ); + } +} + +/** Build SmCaretPosGraph for SmAlignNode + * Acts as an SmExpressionNode, as it only has one child this okay + */ +void SmCaretPosGraphBuildingVisitor::Visit( SmAlignNode* pNode ) +{ + for( auto pChild : *pNode ) + { + if(!pChild) + continue; + pChild->Accept( this ); + } +} + +/** Build SmCaretPosGraph for SmRootNode + * + * Lines in an SmRootNode: + * \code + * _________ + * A/ + * \/ B + * + * \endcode + * A: pExtra ( optional, can be NULL ), + * B: pBody + * + * Graph over these, where "left" is before the SmRootNode and "right" is after: + * \dot + * digraph Graph{ + * left -> B; + * B -> right; + * A -> B; + * } + * \enddot + */ +void SmCaretPosGraphBuildingVisitor::Visit( SmRootNode* pNode ) +{ + SmNode *pExtra = pNode->GetSubNode( 0 ), //Argument, NULL for sqrt, and SmTextNode if cubicroot + *pBody = pNode->GetSubNode( 2 ); //Body of the root + assert(pBody); + + SmCaretPosGraphEntry *left, + *right, + *bodyLeft, + *bodyRight; + + //Get left and save it + assert(mpRightMost); + left = mpRightMost; + + //Create body left + bodyLeft = mpGraph->Add( SmCaretPos( pBody, 0 ), left ); + left->SetRight( bodyLeft ); + + //Create right + right = mpGraph->Add( SmCaretPos( pNode, 1 ) ); + + //Visit body + mpRightMost = bodyLeft; + pBody->Accept( this ); + bodyRight = mpRightMost; + bodyRight->SetRight( right ); + right->SetLeft( bodyRight ); + + //Visit pExtra + if( pExtra ){ + mpRightMost = mpGraph->Add( SmCaretPos( pExtra, 0 ), left ); + pExtra->Accept( this ); + mpRightMost->SetRight( bodyLeft ); + } + + mpRightMost = right; +} + + +/** Build SmCaretPosGraph for SmPlaceNode + * Consider this a single character. + */ +void SmCaretPosGraphBuildingVisitor::Visit( SmPlaceNode* pNode ) +{ + SmCaretPosGraphEntry* right = mpGraph->Add( SmCaretPos( pNode, 1 ), mpRightMost ); + mpRightMost->SetRight( right ); + mpRightMost = right; +} + +/** SmErrorNode is context dependent metadata, it can't be selected + * + * @remarks There's no point in deleting, copying and/or moving an instance + * of SmErrorNode as it may not exist in another context! Thus there are no + * positions to select an SmErrorNode. + */ +void SmCaretPosGraphBuildingVisitor::Visit( SmErrorNode* ) +{ +} + +/** Build SmCaretPosGraph for SmBlankNode + * Consider this a single character, as it is only a blank space + */ +void SmCaretPosGraphBuildingVisitor::Visit( SmBlankNode* pNode ) +{ + SmCaretPosGraphEntry* right = mpGraph->Add( SmCaretPos( pNode, 1 ), mpRightMost ); + mpRightMost->SetRight( right ); + mpRightMost = right; +} + +/** Build SmCaretPosGraph for SmBraceNode + * + * Lines in an SmBraceNode: + * \code + * | | + * | B | + * | | + * \endcode + * B: Body + * + * Graph over these, where "left" is before the SmBraceNode and "right" is after: + * \dot + * digraph Graph{ + * left -> B; + * B -> right; + * } + * \enddot + */ +void SmCaretPosGraphBuildingVisitor::Visit( SmBraceNode* pNode ) +{ + SmNode* pBody = pNode->Body(); + + SmCaretPosGraphEntry *left = mpRightMost, + *right = mpGraph->Add( SmCaretPos( pNode, 1 ) ); + + if( pBody->GetType() != SmNodeType::Bracebody ) { + mpRightMost = mpGraph->Add( SmCaretPos( pBody, 0 ), left ); + left->SetRight( mpRightMost ); + }else + mpRightMost = left; + + pBody->Accept( this ); + mpRightMost->SetRight( right ); + right->SetLeft( mpRightMost ); + + mpRightMost = right; +} + +/** Build SmCaretPosGraph for SmAttributeNode + * + * Lines in an SmAttributeNode: + * \code + * Attr + * Body + * \endcode + * + * There's a body and an attribute, the construction is used for "widehat A", where "A" is the body + * and "^" is the attribute ( note GetScaleMode( ) on SmAttributeNode tells how the attribute should be + * scaled ). + */ +void SmCaretPosGraphBuildingVisitor::Visit( SmAttributeNode* pNode ) +{ + SmNode *pAttr = pNode->Attribute(), + *pBody = pNode->Body(); + assert(pAttr); + assert(pBody); + + SmCaretPosGraphEntry *left = mpRightMost, + *attrLeft, + *bodyLeft, + *bodyRight, + *right; + + //Creating bodyleft + bodyLeft = mpGraph->Add( SmCaretPos( pBody, 0 ), left ); + left->SetRight( bodyLeft ); + + //Creating right + right = mpGraph->Add( SmCaretPos( pNode, 1 ) ); + + //Visit the body + mpRightMost = bodyLeft; + pBody->Accept( this ); + bodyRight = mpRightMost; + bodyRight->SetRight( right ); + right->SetLeft( bodyRight ); + + //Create attrLeft + attrLeft = mpGraph->Add( SmCaretPos( pAttr, 0 ), left ); + + //Visit attribute + mpRightMost = attrLeft; + pAttr->Accept( this ); + mpRightMost->SetRight( right ); + + //Set return value + mpRightMost = right; +} + +//Consider these single symbols +void SmCaretPosGraphBuildingVisitor::Visit( SmSpecialNode* pNode ) +{ + SmCaretPosGraphEntry* right = mpGraph->Add( SmCaretPos( pNode, 1 ), mpRightMost ); + mpRightMost->SetRight( right ); + mpRightMost = right; +} +void SmCaretPosGraphBuildingVisitor::Visit( SmGlyphSpecialNode* pNode ) +{ + SmCaretPosGraphEntry* right = mpGraph->Add( SmCaretPos( pNode, 1 ), mpRightMost ); + mpRightMost->SetRight( right ); + mpRightMost = right; +} +void SmCaretPosGraphBuildingVisitor::Visit( SmMathSymbolNode* pNode ) +{ + SmCaretPosGraphEntry* right = mpGraph->Add( SmCaretPos( pNode, 1 ), mpRightMost ); + mpRightMost->SetRight( right ); + mpRightMost = right; +} + +void SmCaretPosGraphBuildingVisitor::Visit( SmRootSymbolNode* ) +{ + //Do nothing +} + +void SmCaretPosGraphBuildingVisitor::Visit( SmRectangleNode* ) +{ + //Do nothing +} +void SmCaretPosGraphBuildingVisitor::Visit( SmPolyLineNode* ) +{ + //Do nothing +} + +// SmCloningVisitor + +SmNode* SmCloningVisitor::Clone( SmNode* pNode ) +{ + SmNode* pCurrResult = mpResult; + pNode->Accept( this ); + SmNode* pClone = mpResult; + mpResult = pCurrResult; + return pClone; +} + +void SmCloningVisitor::CloneNodeAttr( SmNode const * pSource, SmNode* pTarget ) +{ + pTarget->SetScaleMode( pSource->GetScaleMode( ) ); + //Other attributes are set when prepare or arrange is executed + //and may depend on stuff not being cloned here. +} + +void SmCloningVisitor::CloneKids( SmStructureNode* pSource, SmStructureNode* pTarget ) +{ + //Cache current result + SmNode* pCurrResult = mpResult; + + //Create array for holding clones + size_t nSize = pSource->GetNumSubNodes( ); + SmNodeArray aNodes( nSize ); + + //Clone children + for (size_t i = 0; i < nSize; ++i) + { + SmNode* pKid; + if( nullptr != ( pKid = pSource->GetSubNode( i ) ) ) + pKid->Accept( this ); + else + mpResult = nullptr; + aNodes[i] = mpResult; + } + + //Set subnodes of pTarget + pTarget->SetSubNodes( std::move(aNodes) ); + + //Restore result as where prior to call + mpResult = pCurrResult; +} + +void SmCloningVisitor::Visit( SmTableNode* pNode ) +{ + SmTableNode* pClone = new SmTableNode( pNode->GetToken( ) ); + pClone->SetSelection( pNode->GetSelection() ); + CloneNodeAttr( pNode, pClone ); + CloneKids( pNode, pClone ); + mpResult = pClone; +} + +void SmCloningVisitor::Visit( SmBraceNode* pNode ) +{ + SmBraceNode* pClone = new SmBraceNode( pNode->GetToken( ) ); + pClone->SetSelection( pNode->GetSelection() ); + CloneNodeAttr( pNode, pClone ); + CloneKids( pNode, pClone ); + mpResult = pClone; +} + +void SmCloningVisitor::Visit( SmBracebodyNode* pNode ) +{ + SmBracebodyNode* pClone = new SmBracebodyNode( pNode->GetToken( ) ); + pClone->SetSelection( pNode->GetSelection() ); + CloneNodeAttr( pNode, pClone ); + CloneKids( pNode, pClone ); + mpResult = pClone; +} + +void SmCloningVisitor::Visit( SmOperNode* pNode ) +{ + SmOperNode* pClone = new SmOperNode( pNode->GetToken( ) ); + pClone->SetSelection( pNode->GetSelection() ); + CloneNodeAttr( pNode, pClone ); + CloneKids( pNode, pClone ); + mpResult = pClone; +} + +void SmCloningVisitor::Visit( SmAlignNode* pNode ) +{ + SmAlignNode* pClone = new SmAlignNode( pNode->GetToken( ) ); + pClone->SetSelection( pNode->GetSelection() ); + CloneNodeAttr( pNode, pClone ); + CloneKids( pNode, pClone ); + mpResult = pClone; +} + +void SmCloningVisitor::Visit( SmAttributeNode* pNode ) +{ + SmAttributeNode* pClone = new SmAttributeNode( pNode->GetToken( ) ); + pClone->SetSelection( pNode->GetSelection() ); + CloneNodeAttr( pNode, pClone ); + CloneKids( pNode, pClone ); + mpResult = pClone; +} + +void SmCloningVisitor::Visit( SmFontNode* pNode ) +{ + SmFontNode* pClone = new SmFontNode( pNode->GetToken( ) ); + pClone->SetSelection( pNode->GetSelection() ); + pClone->SetSizeParameter( pNode->GetSizeParameter( ), pNode->GetSizeType( ) ); + CloneNodeAttr( pNode, pClone ); + CloneKids( pNode, pClone ); + mpResult = pClone; +} + +void SmCloningVisitor::Visit( SmUnHorNode* pNode ) +{ + SmUnHorNode* pClone = new SmUnHorNode( pNode->GetToken( ) ); + pClone->SetSelection( pNode->GetSelection() ); + CloneNodeAttr( pNode, pClone ); + CloneKids( pNode, pClone ); + mpResult = pClone; +} + +void SmCloningVisitor::Visit( SmBinHorNode* pNode ) +{ + SmBinHorNode* pClone = new SmBinHorNode( pNode->GetToken( ) ); + pClone->SetSelection( pNode->GetSelection() ); + CloneNodeAttr( pNode, pClone ); + CloneKids( pNode, pClone ); + mpResult = pClone; +} + +void SmCloningVisitor::Visit( SmBinVerNode* pNode ) +{ + SmBinVerNode* pClone = new SmBinVerNode( pNode->GetToken( ) ); + pClone->SetSelection( pNode->GetSelection() ); + CloneNodeAttr( pNode, pClone ); + CloneKids( pNode, pClone ); + mpResult = pClone; +} + +void SmCloningVisitor::Visit( SmBinDiagonalNode* pNode ) +{ + SmBinDiagonalNode *pClone = new SmBinDiagonalNode( pNode->GetToken( ) ); + pClone->SetSelection( pNode->GetSelection() ); + pClone->SetAscending( pNode->IsAscending( ) ); + CloneNodeAttr( pNode, pClone ); + CloneKids( pNode, pClone ); + mpResult = pClone; +} + +void SmCloningVisitor::Visit( SmSubSupNode* pNode ) +{ + SmSubSupNode *pClone = new SmSubSupNode( pNode->GetToken( ) ); + pClone->SetSelection( pNode->GetSelection() ); + pClone->SetUseLimits( pNode->IsUseLimits( ) ); + CloneNodeAttr( pNode, pClone ); + CloneKids( pNode, pClone ); + mpResult = pClone; +} + +void SmCloningVisitor::Visit( SmMatrixNode* pNode ) +{ + SmMatrixNode *pClone = new SmMatrixNode( pNode->GetToken( ) ); + pClone->SetSelection( pNode->GetSelection() ); + pClone->SetRowCol( pNode->GetNumRows( ), pNode->GetNumCols( ) ); + CloneNodeAttr( pNode, pClone ); + CloneKids( pNode, pClone ); + mpResult = pClone; +} + +void SmCloningVisitor::Visit( SmPlaceNode* pNode ) +{ + mpResult = new SmPlaceNode( pNode->GetToken( ) ); + mpResult->SetSelection( pNode->GetSelection() ); + CloneNodeAttr( pNode, mpResult ); +} + +void SmCloningVisitor::Visit( SmTextNode* pNode ) +{ + SmTextNode* pClone = new SmTextNode( pNode->GetToken( ), pNode->GetFontDesc( ) ); + pClone->SetSelection( pNode->GetSelection() ); + pClone->ChangeText( pNode->GetText( ) ); + CloneNodeAttr( pNode, pClone ); + mpResult = pClone; +} + +void SmCloningVisitor::Visit( SmSpecialNode* pNode ) +{ + mpResult = new SmSpecialNode( pNode->GetToken( ) ); + mpResult->SetSelection( pNode->GetSelection() ); + CloneNodeAttr( pNode, mpResult ); +} + +void SmCloningVisitor::Visit( SmGlyphSpecialNode* pNode ) +{ + mpResult = new SmGlyphSpecialNode( pNode->GetToken( ) ); + mpResult->SetSelection( pNode->GetSelection() ); + CloneNodeAttr( pNode, mpResult ); +} + +void SmCloningVisitor::Visit( SmMathSymbolNode* pNode ) +{ + mpResult = new SmMathSymbolNode( pNode->GetToken( ) ); + mpResult->SetSelection( pNode->GetSelection() ); + CloneNodeAttr( pNode, mpResult ); +} + +void SmCloningVisitor::Visit( SmBlankNode* pNode ) +{ + SmBlankNode* pClone = new SmBlankNode( pNode->GetToken( ) ); + pClone->SetSelection( pNode->GetSelection() ); + pClone->SetBlankNum( pNode->GetBlankNum( ) ); + mpResult = pClone; + CloneNodeAttr( pNode, mpResult ); +} + +void SmCloningVisitor::Visit( SmErrorNode* pNode ) +{ + mpResult = new SmErrorNode( pNode->GetToken( ) ); + mpResult->SetSelection( pNode->GetSelection() ); + CloneNodeAttr( pNode, mpResult ); +} + +void SmCloningVisitor::Visit( SmLineNode* pNode ) +{ + SmLineNode* pClone = new SmLineNode( pNode->GetToken( ) ); + pClone->SetSelection( pNode->GetSelection() ); + CloneNodeAttr( pNode, pClone ); + CloneKids( pNode, pClone ); + mpResult = pClone; +} + +void SmCloningVisitor::Visit( SmExpressionNode* pNode ) +{ + SmExpressionNode* pClone = new SmExpressionNode( pNode->GetToken( ) ); + pClone->SetSelection( pNode->GetSelection() ); + CloneNodeAttr( pNode, pClone ); + CloneKids( pNode, pClone ); + mpResult = pClone; +} + +void SmCloningVisitor::Visit( SmPolyLineNode* pNode ) +{ + mpResult = new SmPolyLineNode( pNode->GetToken( ) ); + mpResult->SetSelection( pNode->GetSelection() ); + CloneNodeAttr( pNode, mpResult ); +} + +void SmCloningVisitor::Visit( SmRootNode* pNode ) +{ + SmRootNode* pClone = new SmRootNode( pNode->GetToken( ) ); + pClone->SetSelection( pNode->GetSelection() ); + CloneNodeAttr( pNode, pClone ); + CloneKids( pNode, pClone ); + mpResult = pClone; +} + +void SmCloningVisitor::Visit( SmRootSymbolNode* pNode ) +{ + mpResult = new SmRootSymbolNode( pNode->GetToken( ) ); + mpResult->SetSelection( pNode->GetSelection() ); + CloneNodeAttr( pNode, mpResult ); +} + +void SmCloningVisitor::Visit( SmRectangleNode* pNode ) +{ + mpResult = new SmRectangleNode( pNode->GetToken( ) ); + mpResult->SetSelection( pNode->GetSelection() ); + CloneNodeAttr( pNode, mpResult ); +} + +void SmCloningVisitor::Visit( SmVerticalBraceNode* pNode ) +{ + SmVerticalBraceNode* pClone = new SmVerticalBraceNode( pNode->GetToken( ) ); + pClone->SetSelection( pNode->GetSelection() ); + CloneNodeAttr( pNode, pClone ); + CloneKids( pNode, pClone ); + mpResult = pClone; +} + +// SmSelectionDrawingVisitor + +SmSelectionDrawingVisitor::SmSelectionDrawingVisitor( OutputDevice& rDevice, SmNode* pTree, const Point& rOffset ) + : mrDev( rDevice ) + , mbHasSelectionArea( false ) +{ + //Visit everything + SAL_WARN_IF( !pTree, "starmath", "pTree can't be null!" ); + if( pTree ) + pTree->Accept( this ); + + //Draw selection if there's any + if( !mbHasSelectionArea ) return; + + maSelectionArea.Move( rOffset.X( ), rOffset.Y( ) ); + + //Save device state + mrDev.Push( vcl::PushFlags::LINECOLOR | vcl::PushFlags::FILLCOLOR ); + //Change colors + mrDev.SetLineColor( ); + mrDev.SetFillColor( COL_LIGHTGRAY ); + + //Draw rectangle + mrDev.DrawRect( maSelectionArea ); + + //Restore device state + mrDev.Pop( ); +} + +void SmSelectionDrawingVisitor::ExtendSelectionArea(const tools::Rectangle& rArea) +{ + if ( ! mbHasSelectionArea ) { + maSelectionArea = rArea; + mbHasSelectionArea = true; + } else + maSelectionArea.Union(rArea); +} + +void SmSelectionDrawingVisitor::DefaultVisit( SmNode* pNode ) +{ + if( pNode->IsSelected( ) ) + ExtendSelectionArea( pNode->AsRectangle( ) ); + VisitChildren( pNode ); +} + +void SmSelectionDrawingVisitor::VisitChildren( SmNode* pNode ) +{ + if(pNode->GetNumSubNodes() == 0) + return; + for( auto pChild : *static_cast(pNode) ) + { + if(!pChild) + continue; + pChild->Accept( this ); + } +} + +void SmSelectionDrawingVisitor::Visit( SmTextNode* pNode ) +{ + if( !pNode->IsSelected()) + return; + + mrDev.Push( vcl::PushFlags::TEXTCOLOR | vcl::PushFlags::FONT ); + + mrDev.SetFont( pNode->GetFont( ) ); + Point Position = pNode->GetTopLeft( ); + tools::Long left = Position.getX( ) + mrDev.GetTextWidth( pNode->GetText( ), 0, pNode->GetSelectionStart( ) ); + tools::Long right = Position.getX( ) + mrDev.GetTextWidth( pNode->GetText( ), 0, pNode->GetSelectionEnd( ) ); + tools::Long top = Position.getY( ); + tools::Long bottom = top + pNode->GetHeight( ); + tools::Rectangle rect( left, top, right, bottom ); + + ExtendSelectionArea( rect ); + + mrDev.Pop( ); +} + +// SmNodeToTextVisitor + +SmNodeToTextVisitor::SmNodeToTextVisitor( SmNode* pNode, OUString &rText ) +{ + pNode->Accept( this ); + maCmdText.stripEnd(' '); + rText = maCmdText.makeStringAndClear(); +} + +void SmNodeToTextVisitor::Visit( SmTableNode* pNode ) +{ + if( pNode->GetToken( ).eType == TBINOM ) { + Append(u"{ binom"); + LineToText( pNode->GetSubNode( 0 ) ); + LineToText( pNode->GetSubNode( 1 ) ); + Append(u"} "); + } else if( pNode->GetToken( ).eType == TSTACK ) { + Append(u"stack{ "); + bool bFirst = true; + for( auto pChild : *pNode ) + { + if(!pChild) + continue; + if(bFirst) + bFirst = false; + else + { + Separate( ); + Append(u"# "); + } + LineToText( pChild ); + } + Separate( ); + Append(u"}"); + } else { //Assume it's a toplevel table, containing lines + bool bFirst = true; + for( auto pChild : *pNode ) + { + if(!pChild) + continue; + if(bFirst) + bFirst = false; + else + { + Separate( ); + Append(u"newline"); + } + Separate( ); + pChild->Accept( this ); + } + } +} + +void SmNodeToTextVisitor::Visit( SmBraceNode* pNode ) +{ + if ( pNode->GetToken().eType == TEVALUATE ) + { + SmNode *pBody = pNode->Body(); + Append(u"evaluate { "); + pBody->Accept( this ); + Append(u"} "); + } + else{ + SmNode *pLeftBrace = pNode->OpeningBrace(), + *pBody = pNode->Body(), + *pRightBrace = pNode->ClosingBrace(); + //Handle special case where it's absolute function + if( pNode->GetToken( ).eType == TABS ) { + Append(u"abs"); + LineToText( pBody ); + } else { + if( pNode->GetScaleMode( ) == SmScaleMode::Height ) + Append(u"left "); + pLeftBrace->Accept( this ); + Separate( ); + pBody->Accept( this ); + Separate( ); + if( pNode->GetScaleMode( ) == SmScaleMode::Height ) + Append(u"right "); + pRightBrace->Accept( this ); + } + } +} + +void SmNodeToTextVisitor::Visit( SmBracebodyNode* pNode ) +{ + for( auto pChild : *pNode ) + { + if(!pChild) + continue; + Separate( ); + pChild->Accept( this ); + } +} + +void SmNodeToTextVisitor::Visit( SmOperNode* pNode ) +{ + Append( pNode->GetToken( ).aText ); + Separate( ); + if( pNode->GetToken( ).eType == TOPER ){ + //There's an SmGlyphSpecialNode if eType == TOPER + if( pNode->GetSubNode( 0 )->GetType( ) == SmNodeType::SubSup ) + Append( pNode->GetSubNode( 0 )->GetSubNode( 0 )->GetToken( ).aText ); + else + Append( pNode->GetSubNode( 0 )->GetToken( ).aText ); + } + if( pNode->GetSubNode( 0 )->GetType( ) == SmNodeType::SubSup ) { + SmSubSupNode *pSubSup = static_cast( pNode->GetSubNode( 0 ) ); + SmNode* pChild = pSubSup->GetSubSup( LSUP ); + if( pChild ) { + Separate( ); + Append(u"lsup { "); + LineToText( pChild ); + Append(u"} "); + } + pChild = pSubSup->GetSubSup( LSUB ); + if( pChild ) { + Separate( ); + Append(u"lsub { "); + LineToText( pChild ); + Append(u"} "); + } + pChild = pSubSup->GetSubSup( RSUP ); + if( pChild ) { + Separate( ); + Append(u"^ { "); + LineToText( pChild ); + Append(u"} "); + } + pChild = pSubSup->GetSubSup( RSUB ); + if( pChild ) { + Separate( ); + Append(u"_ { "); + LineToText( pChild ); + Append(u"} "); + } + pChild = pSubSup->GetSubSup( CSUP ); + if( pChild ) { + Separate( ); + if (pSubSup->IsUseLimits()) + Append(u"to { "); + else + Append(u"csup { "); + LineToText( pChild ); + Append(u"} "); + } + pChild = pSubSup->GetSubSup( CSUB ); + if( pChild ) { + Separate( ); + if (pSubSup->IsUseLimits()) + Append(u"from { "); + else + Append(u"csub { "); + LineToText( pChild ); + Append(u"} "); + } + } + LineToText( pNode->GetSubNode( 1 ) ); +} + +void SmNodeToTextVisitor::Visit( SmAlignNode* pNode ) +{ + Append( pNode->GetToken( ).aText ); + LineToText( pNode->GetSubNode( 0 ) ); +} + +void SmNodeToTextVisitor::Visit( SmAttributeNode* pNode ) +{ + Append( pNode->GetToken( ).aText ); + LineToText( pNode->Body() ); +} + +void SmNodeToTextVisitor::Visit( SmFontNode* pNode ) +{ + sal_uInt32 nc; + sal_uInt8 nr, ng, nb; + switch ( pNode->GetToken( ).eType ) + { + case TBOLD: + Append(u"bold "); + break; + case TNBOLD: + Append(u"nbold "); + break; + case TITALIC: + Append(u"italic "); + break; + case TNITALIC: + Append(u"nitalic "); + break; + case TPHANTOM: + Append(u"phantom "); + break; + case TSIZE: + { + Append(u"size "); + switch ( pNode->GetSizeType( ) ) + { + case FontSizeType::PLUS: + Append(u"+"); + break; + case FontSizeType::MINUS: + Append(u"-"); + break; + case FontSizeType::MULTIPLY: + Append(u"*"); + break; + case FontSizeType::DIVIDE: + Append(u"/"); + break; + case FontSizeType::ABSOLUT: + default: + break; + } + Append( ::rtl::math::doubleToUString( + static_cast( pNode->GetSizeParameter( ) ), + rtl_math_StringFormat_Automatic, + rtl_math_DecimalPlaces_Max, '.', true ) ); + Separate( ); + } + break; + + case TDVIPSNAMESCOL: + Append(u"color dvip "); + nc = pNode->GetToken().cMathChar.toUInt32(16); + Append( starmathdatabase::Identify_Color_Parser( nc ).aIdent ); + break; + case THTMLCOL: + case TMATHMLCOL: + case TICONICCOL: + Append(u"color "); + nc = pNode->GetToken().cMathChar.toUInt32(16); + Append( starmathdatabase::Identify_Color_Parser( nc ).aIdent ); + break; + case TRGB: + nc = pNode->GetToken().cMathChar.toUInt32(16); + Append(u"color rgb "); + nb = nc % 256; + nc /= 256; + ng = nc % 256; + nc /= 256; + nr = nc % 256; + Append(OUString::number(nr)); + Separate(); + Append(OUString::number(ng)); + Separate(); + Append(OUString::number(nb)); + Separate(); + break; + case TRGBA: + Append(u"color rgba "); + nc = pNode->GetToken().cMathChar.toUInt32(16); + nb = nc % 256; + nc /= 256; + ng = nc % 256; + nc /= 256; + nr = nc % 256; + nc /= 256; + Append(OUString::number(nr)); + Separate(); + Append(OUString::number(ng)); + Separate(); + Append(OUString::number(nb)); + Separate(); + Append(OUString::number(nc)); + Separate(); + break; + case THEX: + Append(u"color hex "); + nc = pNode->GetToken().cMathChar.toUInt32(16); + Append(OUString::number(nc,16)); + Separate(); + break; + case TSANS: + Append(u"font sans "); + break; + case TSERIF: + Append(u"font serif "); + break; + case TFIXED: + Append(u"font fixed "); + break; + default: + break; + } + LineToText( pNode->GetSubNode( 1 ) ); +} + +void SmNodeToTextVisitor::Visit( SmUnHorNode* pNode ) +{ + if(pNode->GetSubNode( 1 )->GetToken( ).eType == TFACT) + { + // visit children in the reverse order + for( auto it = pNode->rbegin(); it != pNode->rend(); ++it ) + { + auto pChild = *it; + if(!pChild) + continue; + Separate( ); + pChild->Accept( this ); + } + } + else + { + for( auto pChild : *pNode ) + { + if(!pChild) + continue; + Separate( ); + pChild->Accept( this ); + } + } +} + +void SmNodeToTextVisitor::Visit( SmBinHorNode* pNode ) +{ + const SmNode *pParent = pNode->GetParent(); + bool bBraceNeeded = pParent && pParent->GetType() == SmNodeType::Font; + SmNode *pLeft = pNode->LeftOperand(), + *pOper = pNode->Symbol(), + *pRight = pNode->RightOperand(); + Separate( ); + if (bBraceNeeded) + Append(u"{ "); + pLeft->Accept( this ); + Separate( ); + pOper->Accept( this ); + Separate( ); + pRight->Accept( this ); + Separate( ); + if (bBraceNeeded) + Append(u"} "); +} + +void SmNodeToTextVisitor::Visit( SmBinVerNode* pNode ) +{ + if( pNode->GetToken().eType == TOVER ){ + SmNode *pNum = pNode->GetSubNode( 0 ), + *pDenom = pNode->GetSubNode( 2 ); + Append(u"{ "); + LineToText( pNum ); + Append(u"over"); + LineToText( pDenom ); + Append(u"} "); + } else{ + SmNode *pNum = pNode->GetSubNode( 0 ), + *pDenom = pNode->GetSubNode( 2 ); + Append(u"frac {"); + LineToText( pNum ); + Append(u"} {"); + LineToText( pDenom ); + Append(u"}"); + } +} + +void SmNodeToTextVisitor::Visit( SmBinDiagonalNode* pNode ) +{ + SmNode *pLeftOperand = pNode->GetSubNode( 0 ), + *pRightOperand = pNode->GetSubNode( 1 ); + Append(u"{ "); + LineToText( pLeftOperand ); + Separate( ); + Append(u"wideslash "); + LineToText( pRightOperand ); + Append(u"} "); +} + +void SmNodeToTextVisitor::Visit( SmSubSupNode* pNode ) +{ + if( pNode->GetToken().eType == TEVALUATE ) + { + Append(u"evaluate { "); + pNode->GetSubNode( 0 )->GetSubNode( 1 )->Accept(this); + Append(u"} "); + SmNode* pChild = pNode->GetSubSup( RSUP ); + if( pChild ) { + Separate( ); + Append(u"to { "); + LineToText( pChild ); + Append(u"} "); + } + pChild = pNode->GetSubSup( RSUB ); + if( pChild ) { + Separate( ); + Append(u"from { "); + LineToText( pChild ); + Append(u"} "); + } + } + else + { + LineToText( pNode->GetBody( ) ); + SmNode *pChild = pNode->GetSubSup( LSUP ); + if( pChild ) { + Separate( ); + Append(u"lsup "); + LineToText( pChild ); + } + pChild = pNode->GetSubSup( LSUB ); + if( pChild ) { + Separate( ); + Append(u"lsub "); + LineToText( pChild ); + } + pChild = pNode->GetSubSup( RSUP ); + if( pChild ) { + Separate( ); + Append(u"^ "); + LineToText( pChild ); + } + pChild = pNode->GetSubSup( RSUB ); + if( pChild ) { + Separate( ); + Append(u"_ "); + LineToText( pChild ); + } + pChild = pNode->GetSubSup( CSUP ); + if( pChild ) { + Separate( ); + if (pNode->IsUseLimits()) + Append(u"to "); + else + Append(u"csup "); + LineToText( pChild ); + } + pChild = pNode->GetSubSup( CSUB ); + if( pChild ) { + Separate( ); + if (pNode->IsUseLimits()) + Append(u"from "); + else + Append(u"csub "); + LineToText( pChild ); + } + } +} + +void SmNodeToTextVisitor::Visit( SmMatrixNode* pNode ) +{ + Append(u"matrix{"); + for (size_t i = 0; i < pNode->GetNumRows(); ++i) + { + for (size_t j = 0; j < pNode->GetNumCols( ); ++j) + { + SmNode* pSubNode = pNode->GetSubNode( i * pNode->GetNumCols( ) + j ); + Separate( ); + if (pSubNode) + pSubNode->Accept( this ); + Separate( ); + if (j != pNode->GetNumCols() - 1U) + Append(u"#"); + } + Separate( ); + if (i != pNode->GetNumRows() - 1U) + Append(u"##"); + } + Append(u"} "); +} + +void SmNodeToTextVisitor::Visit( SmPlaceNode* ) +{ + Append(u""); +} + +void SmNodeToTextVisitor::Visit( SmTextNode* pNode ) +{ + SmTokenType type = pNode->GetToken( ).eType; + switch(type){ + case TTEXT: + Append(u"\""); + Append( pNode->GetToken().aText ); + Append(u"\""); + break; + case TNUMBER: + Append( pNode->GetToken().aText ); + break; + case TIDENT: + Append( pNode->GetToken().aText ); + break; + case TFUNC: + Append(u"func "); + Append( pNode->GetToken().aText ); + break; + case THEX: + Append(u"hex "); + Append( pNode->GetToken().aText ); + break; + default: + Append( pNode->GetToken().aText ); + } + Separate( ); +} + +void SmNodeToTextVisitor::Visit( SmSpecialNode* pNode ) +{ + SmTokenType type = pNode->GetToken().eType; + switch(type){ + case TLIMSUP: + Append(u"lim sup "); + break; + case TLIMINF: + Append(u"lim inf "); + break; + default: + Append( pNode->GetToken().aText ); + break; + } +} + +void SmNodeToTextVisitor::Visit( SmGlyphSpecialNode* pNode ) +{ + if( pNode->GetToken( ).eType == TBOPER ) + Append(u"boper "); + else + Append(u"uoper "); + Append( pNode->GetToken( ).aText ); +} + +//TODO to improve this it is required to improve mathmlimport. +void SmNodeToTextVisitor::Visit( SmMathSymbolNode* pNode ) +{ + if ( ( pNode->GetToken().nGroup & TG::LBrace ) + || ( pNode->GetToken().nGroup & TG::RBrace ) + || ( pNode->GetToken().nGroup & TG::Sum ) + || ( pNode->GetToken().nGroup & TG::Product ) + || ( pNode->GetToken().nGroup & TG::Relation ) + || ( pNode->GetToken().nGroup & TG::UnOper ) + || ( pNode->GetToken().nGroup & TG::Oper ) + ) { + Append( pNode->GetToken().aText ); + return; + } + sal_Unicode cChar = pNode->GetToken().cMathChar[0]; + Separate( ); + switch(cChar){ + case MS_NONE: + Append(u"none"); + break; + case '{': + Append(u"{"); + break; + case '}': + Append(u"}"); + break; + case MS_VERTLINE: + Append(u"mline"); + break; + case MS_TILDE: + Append(u"\"~\""); + break; + case MS_RIGHTARROW: + if( pNode->GetToken().eType == TTOWARD ) Append(u"toward"); + else Append(u"rightarrow"); + break; + case MS_LEFTARROW: + Append(u"leftarrow"); + break; + case MS_UPARROW: + Append(u"uparrow"); + break; + case MS_DOWNARROW: + Append(u"downarrow"); + break; + case MS_LAMBDABAR: + Append(u"lambdabar"); + break; + case MS_DOTSLOW: + Append(u"dotslow"); + break; + case MS_SETC: + Append(u"setC"); + break; + case MS_HBAR: + Append(u"hbar"); + break; + case MS_IM: + Append(u"Im"); + break; + case MS_SETN: + Append(u"setN"); + break; + case MS_WP: + Append(u"wp"); + break; + case MS_LAPLACE: + Append(u"laplace"); + break; + case MS_SETQ: + Append(u"setQ"); + break; + case MS_RE: + Append(u"Re"); + break; + case MS_SETR: + Append(u"setR"); + break; + case MS_SETZ: + Append(u"setZ"); + break; + case MS_ALEPH: + Append(u"aleph"); + break; + case 0x0362: + Append(u"widevec"); + break; + case MS_DLARROW: + Append(u"dlarrow"); + break; + case MS_DRARROW: + Append(u"drarrow"); + break; + case MS_DLRARROW: + Append(u"dlrarrow"); + break; + case MS_FORALL: + Append(u"forall"); + break; + case MS_PARTIAL: + Append(u"partial"); + break; + case MS_EXISTS: + Append(u"exists"); + break; + case MS_NOTEXISTS: + Append(u"notexists"); + break; + case MS_EMPTYSET: + Append(u"emptyset"); + break; + case MS_NABLA: + Append(u"nabla"); + break; + case MS_BACKEPSILON: + Append(u"backepsilon"); + break; + case MS_CIRC: + Append(u"circ"); + break; + case MS_INFINITY: + Append(u"infinity"); + break; + case 0x22b2: // NORMAL SUBGROUP OF + Append(OUStringChar(cChar)); + break; + case 0x22b3: // CONTAINS AS NORMAL SUBGROUP + Append(OUStringChar(cChar)); + break; + case MS_ORTHO: + Append(u"ortho"); + break; + case MS_DOTSVERT: + Append(u"dotsvert"); + break; + case MS_DOTSAXIS: + Append(u"dotsaxis"); + break; + case MS_DOTSUP: + Append(u"dotsup"); + break; + case MS_DOTSDOWN: + Append(u"dotsdown"); + break; + case '^': + Append(u"^"); + break; + case 0xe091: + Append(u"widehat"); + break; + case 0xe096: + Append(u"widetilde"); + break; + case 0xe098: + Append(u"widevec"); + break; + case 0xeb01: //no space + case 0xeb08: //normal space + break; + case 0xef04: //tiny space + case 0xef05: //tiny space + case 0xeb02: //small space + case 0xeb04: //medium space + Append(u"`"); + break; + case 0xeb05: //large space + Append(u"~"); + break; + case 0x3a9: + Append(u"%OMEGA"); + break; + default: + Append(OUStringChar(cChar)); + break; + } +} + +void SmNodeToTextVisitor::Visit( SmBlankNode* pNode ) +{ + sal_uInt16 nNum = pNode->GetBlankNum(); + if (nNum <= 0) + return; + sal_uInt16 nWide = nNum / 4; + sal_uInt16 nNarrow = nNum % 4; + for (sal_uInt16 i = 0; i < nWide; i++) + Append(u"~"); + for (sal_uInt16 i = 0; i < nNarrow; i++) + Append(u"`"); + Append(u" "); +} + +void SmNodeToTextVisitor::Visit( SmErrorNode* ) +{ +} + +void SmNodeToTextVisitor::Visit( SmLineNode* pNode ) +{ + for( auto pChild : *pNode ) + { + if(!pChild) + continue; + Separate( ); + pChild->Accept( this ); + } +} + +void SmNodeToTextVisitor::Visit( SmExpressionNode* pNode ) +{ + bool bracketsNeeded = pNode->GetNumSubNodes() != 1 || pNode->GetSubNode(0)->GetType() == SmNodeType::BinHor; + if (!bracketsNeeded) + { + const SmNode *pParent = pNode->GetParent(); + // nested subsups + bracketsNeeded = + pParent && pParent->GetType() == SmNodeType::SubSup && + pNode->GetNumSubNodes() == 1 && + pNode->GetSubNode(0)->GetType() == SmNodeType::SubSup; + } + + if (bracketsNeeded) { + Append(u"{ "); + } + for( auto pChild : *pNode ) + { + if(!pChild) + continue; + pChild->Accept( this ); + Separate( ); + } + if (bracketsNeeded) { + Append(u"} "); + } +} + +void SmNodeToTextVisitor::Visit( SmPolyLineNode* ) +{ +} + +void SmNodeToTextVisitor::Visit( SmRootNode* pNode ) +{ + SmNode *pExtra = pNode->GetSubNode( 0 ), + *pBody = pNode->GetSubNode( 2 ); + if( pExtra ) { + Append(u"nroot"); + LineToText( pExtra ); + } else + Append(u"sqrt"); + LineToText( pBody ); +} + +void SmNodeToTextVisitor::Visit( SmRootSymbolNode* ) +{ +} + +void SmNodeToTextVisitor::Visit( SmRectangleNode* ) +{ +} + +void SmNodeToTextVisitor::Visit( SmVerticalBraceNode* pNode ) +{ + SmNode *pBody = pNode->Body(), + *pScript = pNode->Script(); + LineToText( pBody ); + Append( pNode->GetToken( ).aText ); + LineToText( pScript ); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ -- cgit v1.2.3