/* This file is part of the KDE project Copyright (C) 2001 Andrea Rizzi Ulrich Kuettler This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, * Boston, MA 02110-1301, USA. */ #include #include #include #include #include #include #include "bracketelement.h" #include "elementvisitor.h" #include "fontstyle.h" #include "formulacursor.h" #include "formulaelement.h" #include "sequenceelement.h" KFORMULA_NAMESPACE_BEGIN SingleContentElement::SingleContentElement(BasicElement* tqparent ) : BasicElement( tqparent ) { content = new SequenceElement( this ); } SingleContentElement::SingleContentElement( const SingleContentElement& other ) : BasicElement( other ) { content = new SequenceElement( other.content ); content->setParent( this ); } SingleContentElement::~SingleContentElement() { delete content; } TQChar SingleContentElement::getCharacter() const { // This is meant to make the SingleContentElement text only. // This "fixes" the parenthesis problem (parenthesis too large). // I'm not sure if we really want this. There should be better ways. if ( content->isTextOnly() ) { return '\\'; } return content->getCharacter(); } BasicElement* SingleContentElement::goToPos( FormulaCursor* cursor, bool& handled, const LuPixelPoint& point, const LuPixelPoint& parentOrigin ) { BasicElement* e = BasicElement::goToPos(cursor, handled, point, parentOrigin); if (e != 0) { LuPixelPoint myPos(parentOrigin.x() + getX(), parentOrigin.y() + getY()); e = content->goToPos(cursor, handled, point, myPos); if (e != 0) { return e; } return this; } return 0; } void SingleContentElement::dispatchFontCommand( FontCommand* cmd ) { content->dispatchFontCommand( cmd ); } void SingleContentElement::moveLeft(FormulaCursor* cursor, BasicElement* from) { if (cursor->isSelectionMode()) { getParent()->moveLeft(cursor, this); } else { //bool linear = cursor->getLinearMovement(); if (from == getParent()) { content->moveLeft(cursor, this); } else { getParent()->moveLeft(cursor, this); } } } void SingleContentElement::moveRight(FormulaCursor* cursor, BasicElement* from) { if (cursor->isSelectionMode()) { getParent()->moveRight(cursor, this); } else { //bool linear = cursor->getLinearMovement(); if (from == getParent()) { content->moveRight(cursor, this); } else { getParent()->moveRight(cursor, this); } } } void SingleContentElement::moveUp(FormulaCursor* cursor, BasicElement* /*from*/) { getParent()->moveUp(cursor, this); } void SingleContentElement::moveDown(FormulaCursor* cursor, BasicElement* /*from*/) { getParent()->moveDown(cursor, this); } void SingleContentElement::remove( FormulaCursor* cursor, TQPtrList& removedChildren, Direction direction ) { switch (cursor->getPos()) { case contentPos: BasicElement* tqparent = getParent(); tqparent->selectChild(cursor, this); tqparent->remove(cursor, removedChildren, direction); } } void SingleContentElement::normalize( FormulaCursor* cursor, Direction direction ) { if (direction == beforeCursor) { content->moveLeft(cursor, this); } else { content->moveRight(cursor, this); } } SequenceElement* SingleContentElement::getMainChild() { return content; } void SingleContentElement::selectChild(FormulaCursor* cursor, BasicElement* child) { if (child == content) { cursor->setTo(this, contentPos); } } void SingleContentElement::writeDom(TQDomElement element) { BasicElement::writeDom(element); TQDomDocument doc = element.ownerDocument(); TQDomElement con = doc.createElement("CONTENT"); con.appendChild(content->getElementDom(doc)); element.appendChild(con); } bool SingleContentElement::readContentFromDom(TQDomNode& node) { if (!BasicElement::readContentFromDom(node)) { return false; } if ( !buildChild( content, node, "CONTENT" ) ) { kdWarning( DEBUGID ) << "Empty content in " << getTagName() << endl; return false; } node = node.nextSibling(); return true; } int SingleContentElement::readContentFromMathMLDom( TQDomNode& node ) { if ( BasicElement::readContentFromMathMLDom( node ) == -1 ) { return -1; } int nodeCounter = content->buildMathMLChild( node ); if ( nodeCounter == -1 ) { kdWarning( DEBUGID) << "Empty content in SingleContentElement\n"; return -1; } return nodeCounter; } void SingleContentElement::writeMathMLContent( TQDomDocument& doc, TQDomElement& element, bool oasisFormat ) const { content->writeMathML( doc, element, oasisFormat ); } BracketElement::BracketElement(SymbolType l, SymbolType r, BasicElement* tqparent) : SingleContentElement(tqparent), left( 0 ), right( 0 ), leftType( l ), rightType( r ), m_operator( false ), m_customLeft( false ), m_customRight( false ) { } BracketElement::~BracketElement() { delete left; delete right; } BracketElement::BracketElement( const BracketElement& other ) : SingleContentElement( other ), left( 0 ), right( 0 ), leftType( other.leftType ), rightType( other.rightType ), m_operator( other.m_operator ), m_customLeft( other.m_customLeft ), m_customRight( other.m_customRight ) { } bool BracketElement::accept( ElementVisitor* visitor ) { return visitor->visit( this ); } void BracketElement::entered( SequenceElement* /*child*/ ) { formula()->tell( i18n( "Delimited list" ) ); } BasicElement* BracketElement::goToPos( FormulaCursor* cursor, bool& handled, const LuPixelPoint& point, const LuPixelPoint& parentOrigin ) { BasicElement* e = BasicElement::goToPos(cursor, handled, point, parentOrigin); if (e != 0) { LuPixelPoint myPos(parentOrigin.x() + getX(), parentOrigin.y() + getY()); e = getContent()->goToPos(cursor, handled, point, myPos); if (e != 0) { return e; } // We are in one of those gaps. luPixel dx = point.x() - myPos.x(); luPixel dy = point.y() - myPos.y(); if ((dx > getContent()->getX()+getContent()->getWidth()) || (dy > getContent()->getY()+getContent()->getHeight())) { getContent()->moveEnd(cursor); handled = true; return getContent(); } return this; } return 0; } /** * Calculates our width and height and * our tqchildren's parentPosition. */ void BracketElement::calcSizes( const ContextStyle& context, ContextStyle::TextStyle tstyle, ContextStyle::IndexStyle istyle, StyleAttributes& style ) { SequenceElement* content = getContent(); content->calcSizes( context, tstyle, istyle, style ); //if ( left == 0 ) { delete left; delete right; left = context.fontStyle().createArtwork( leftType ); right = context.fontStyle().createArtwork( rightType ); //} double factor = style.sizeFactor(); if (content->isTextOnly()) { left->calcSizes(context, tstyle, factor); right->calcSizes(context, tstyle, factor); setBaseline(TQMAX(content->getBaseline(), TQMAX(left->getBaseline(), right->getBaseline()))); content->setY(getBaseline() - content->getBaseline()); left ->setY(getBaseline() - left ->getBaseline()); right ->setY(getBaseline() - right ->getBaseline()); //setMidline(content->getY() + content->getMidline()); setHeight(TQMAX(content->getY() + content->getHeight(), TQMAX(left ->getY() + left ->getHeight(), right->getY() + right->getHeight()))); } else { //kdDebug( DEBUGID ) << "BracketElement::calcSizes " << content->axis( context, tstyle ) << " " << content->getHeight() << endl; luPixel contentHeight = 2 * TQMAX( content->axis( context, tstyle, factor ), content->getHeight() - content->axis( context, tstyle, factor ) ); left->calcSizes( context, tstyle, factor, contentHeight ); right->calcSizes( context, tstyle, factor, contentHeight ); // height setHeight(TQMAX(contentHeight, TQMAX(left->getHeight(), right->getHeight()))); //setMidline(getHeight() / 2); content->setY(getHeight() / 2 - content->axis( context, tstyle, factor )); setBaseline(content->getBaseline() + content->getY()); if ( left->isNormalChar() ) { left->setY(getBaseline() - left->getBaseline()); } else { left->setY((getHeight() - left->getHeight())/2); } if ( right->isNormalChar() ) { right->setY(getBaseline() - right->getBaseline()); } else { right->setY((getHeight() - right->getHeight())/2); } // kdDebug() << "BracketElement::calcSizes" << endl // << "getHeight(): " << getHeight() << endl // << "left->getHeight(): " << left->getHeight() << endl // << "right->getHeight(): " << right->getHeight() << endl // << "left->getY(): " << left->getY() << endl // << "right->getY(): " << right->getY() << endl // << endl; } // width setWidth(left->getWidth() + content->getWidth() + right->getWidth()); content->setX(left->getWidth()); right ->setX(left->getWidth()+content->getWidth()); } /** * Draws the whole element including its tqchildren. * The `parentOrigin' is the point this element's tqparent starts. * We can use our parentPosition to get our own origin then. */ void BracketElement::draw( TQPainter& painter, const LuPixelRect& r, const ContextStyle& context, ContextStyle::TextStyle tstyle, ContextStyle::IndexStyle istyle, StyleAttributes& style, const LuPixelPoint& parentOrigin ) { LuPixelPoint myPos( parentOrigin.x()+getX(), parentOrigin.y()+getY() ); //if ( !LuPixelRect( myPos.x(), myPos.y(), getWidth(), getHeight() ).intersects( r ) ) // return; SequenceElement* content = getContent(); content->draw(painter, r, context, tstyle, istyle, style, myPos); if (content->isTextOnly()) { left->draw(painter, r, context, tstyle, style, myPos); right->draw(painter, r, context, tstyle, style, myPos); } else { double factor = style.sizeFactor(); luPixel contentHeight = 2 * TQMAX(content->axis( context, tstyle, factor ), content->getHeight() - content->axis( context, tstyle, factor )); left->draw(painter, r, context, tstyle, style, contentHeight, myPos); right->draw(painter, r, context, tstyle, style, contentHeight, myPos); } // Debug #if 0 painter.setBrush( TQt::NoBrush ); painter.setPen( TQt::red ); painter.drawRect( context.layoutUnitToPixelX( myPos.x()+left->getX() ), context.layoutUnitToPixelY( myPos.y()+left->getY() ), context.layoutUnitToPixelX( left->getWidth() ), context.layoutUnitToPixelY( left->getHeight() ) ); painter.drawRect( context.layoutUnitToPixelX( myPos.x()+right->getX() ), context.layoutUnitToPixelY( myPos.y()+right->getY() ), context.layoutUnitToPixelX( right->getWidth() ), context.layoutUnitToPixelY( right->getHeight() ) ); #endif } /** * Appends our attributes to the dom element. */ void BracketElement::writeDom(TQDomElement element) { SingleContentElement::writeDom(element); element.setAttribute("LEFT", leftType); element.setAttribute("RIGHT", rightType); } /** * Reads our attributes from the element. * Returns false if it failed. */ bool BracketElement::readAttributesFromDom(TQDomElement element) { if (!BasicElement::readAttributesFromDom(element)) { return false; } TQString leftStr = element.attribute("LEFT"); if(!leftStr.isNull()) { leftType = static_cast(leftStr.toInt()); } TQString rightStr = element.attribute("RIGHT"); if(!rightStr.isNull()) { rightType = static_cast(rightStr.toInt()); } return true; } /** * Reads our attributes from the MathML element. * Returns false if it failed. */ bool BracketElement::readAttributesFromMathMLDom(const TQDomElement& element) { if ( !BasicElement::readAttributesFromMathMLDom( element ) ) { return false; } if ( element.tagName().lower() == "mo" ) { m_operator = true; // TODO: parse attributes in section 3.2.5.2 } else { // mfenced, see attributes in section 3.3.8.2 leftType = LeftRoundBracket; rightType = RightRoundBracket; TQString openStr = element.attribute( "open" ).stripWhiteSpace(); if ( !openStr.isNull() ) { m_customLeft = true; if ( openStr == "[" ) leftType = LeftSquareBracket; else if ( openStr == "]" ) leftType = RightSquareBracket; else if ( openStr == "{" ) leftType = LeftCurlyBracket; else if ( openStr == "}" ) leftType = RightCurlyBracket; else if ( openStr == "<" ) leftType = LeftCornerBracket; else if ( openStr == ">" ) leftType = RightCornerBracket; else if ( openStr == "(" ) leftType = LeftRoundBracket; else if ( openStr == ")" ) leftType = RightRoundBracket; else if ( openStr == "/" ) leftType = SlashBracket; else if ( openStr == "\\" ) leftType = BackSlashBracket; else // TODO: Check for entity references leftType = LeftRoundBracket; } TQString closeStr = element.attribute( "close" ).stripWhiteSpace(); if ( !closeStr.isNull() ) { m_customRight = true; if ( closeStr == "[" ) rightType = LeftSquareBracket; else if ( closeStr == "]" ) rightType = RightSquareBracket; else if ( closeStr == "{" ) rightType = LeftCurlyBracket; else if ( closeStr == "}" ) rightType = RightCurlyBracket; else if ( closeStr == "<" ) rightType = LeftCornerBracket; else if ( closeStr == ">" ) rightType = RightCornerBracket; else if ( closeStr == "(" ) rightType = LeftRoundBracket; else if ( closeStr == ")" ) rightType = RightRoundBracket; else if ( closeStr == "/" ) rightType = SlashBracket; else if ( closeStr == "\\" ) rightType = BackSlashBracket; else // TODO: Check for entity references rightType = LeftRoundBracket; } m_separators = element.attribute( "separators" ).simplifyWhiteSpace(); } return true; } /** * Reads our content from the MathML node. Sets the node to the next node * that needs to be read. * Returns false if it failed. */ int BracketElement::readContentFromMathMLDom(TQDomNode& node) { bool empty = false; int nodeCounter = 0; if ( m_operator ) { node = node.parentNode(); TQDomNode open = node; TQDomNode tqparent = node.parentNode(); if ( ! operatorType( node, true ) ) return -1; int nodeNum = searchOperator( node ); if ( nodeNum == -1 ) // Closing bracket not found return -1; if ( nodeNum == 0 ) { // Empty content empty = true; } else if ( nodeNum == 1 ) { do { node = node.nextSibling(); nodeCounter++; } while ( ! node.isElement() ); } else { // More than two elements inside, infer a mrow nodeCounter += nodeNum; kdWarning() << "NodeNum: " << nodeNum << endl; TQDomDocument doc = node.ownerDocument(); TQDomElement de = doc.createElement( "mrow" ); int i = 0; do { TQDomNode n = node.nextSibling(); de.appendChild( node.toElement() ); node = n; } while ( ++i < nodeNum ); tqparent.insertAfter( de, open ); node = de; kdWarning() << doc.toString() << endl; } } else { // if it's a mfence tag, we need to convert to equivalent expanded form. // See section 3.3.8 while ( ! node.isNull() && ! node.isElement() ) node = node.nextSibling(); TQDomNode next = node.nextSibling(); while ( ! next.isNull() && ! next.isElement() ) next = next.nextSibling(); if ( ! next.isNull()) { TQDomDocument doc = node.ownerDocument(); TQDomNode tqparent = node.parentNode(); TQString ns = tqparent.prefix(); TQDomElement de = doc.createElementNS( ns, "mrow" ); uint pos = 0; while ( ! node.isNull() ) { TQDomNode no = node.nextSibling(); while ( ! no.isNull() && ! no.isElement() ) no = no.nextSibling(); de.appendChild( node.toElement() ); if ( ! no.isNull() && ( m_separators.isNull() || ! m_separators.isEmpty() ) ) { TQDomElement sep = doc.createElementNS( ns, "mo" ); de.appendChild( sep ); if ( m_separators.isNull() ) { sep.appendChild( doc.createTextNode( "," ) ); } else { if ( m_separators.at( pos ).isSpace() ) { pos++; } sep.appendChild( doc.createTextNode( TQString ( m_separators.at( pos ) ) ) ); } if ( pos < m_separators.length() - 1 ) { pos++; } } node = no; } tqparent.appendChild( de ); node = tqparent.firstChild(); while ( ! node.isElement() ) node = node.nextSibling(); } } if ( ! empty ) { int contentNumber = inherited::readContentFromMathMLDom( node ); if ( contentNumber == -1 ) return -1; nodeCounter += contentNumber; for (int i = 0; i < contentNumber; i++ ) { if ( node.isNull() ) { return -1; } node = node.nextSibling(); } } if ( m_operator ) { int operatorNumber = operatorType( node, false ); if ( operatorNumber == -1 ) { return -1; } nodeCounter += operatorNumber; } kdDebug( DEBUGID ) << "Number of bracket nodes: " << nodeCounter << endl; return nodeCounter; } TQString BracketElement::toLatex() { TQString ls,rs,cs; cs=getContent()->toLatex(); ls="\\left"+latexString(leftType) + " "; rs=" \\right"+latexString(rightType); return ls+cs+rs; } TQString BracketElement::latexString(char type) { switch (type) { case ']': return "]"; case '[': return "["; case '{': return "\\{"; case '}': return "\\}"; case '(': return "("; case ')': return ")"; case '|': return "|"; case '<': return "\\langle"; case '>': return "\\rangle"; case '/': return "/"; case '\\': return "\\backslash"; } return "."; } TQString BracketElement::formulaString() { return "(" + getContent()->formulaString() + ")"; } int BracketElement::operatorType( TQDomNode& node, bool open ) { int counter = 1; SymbolType* type = open ? &leftType : &rightType; while ( ! node.isNull() && ! node.isElement() ) { node = node.nextSibling(); counter++; } if ( node.isElement() ) { TQDomElement e = node.toElement(); TQDomNode child = e.firstChild(); if ( child.isEntityReference() ) { kdWarning() << "Entity Reference\n"; TQString name = node.nodeName(); // TODO: To fully support these, SymbolType has to be extended, // and better Unicode support is a must // CloseCurlyDoubleQuote 0x201D // CloseCurlyQoute 0x2019 // LeftCeiling 0x2308 // LeftDoubleBracket 0x301A // LeftFloor 0x230A // OpenCurlyDoubleQuote 0x201C // OpenCurlyQuote 0x2018 // RightCeiling 0x2309 // RightDoubleBracket 0x301B // RightFloor 0x230B if ( name == "LeftAngleBracket" ) { *type = LeftCornerBracket; } else if ( name == "RightAngleBracket" ) { *type = RightCornerBracket; } else { if ( open ) { *type = LeftRoundBracket; } else *type = RightRoundBracket; } } else { TQString s = e.text(); if ( s.isNull() ) return -1; *type = static_cast( TQString::number( s.tqat( 0 ).latin1() ).toInt() ); } } else { return -1; } return counter; } int BracketElement::searchOperator( const TQDomNode& node ) { TQDomNode n = node; for ( int i = -2; ! n.isNull(); n = n.nextSibling() ) { if ( n.isElement() ) { i++; TQDomElement e = n.toElement(); if ( e.tagName().lower() == "mo" ) { // Try to guess looking at attributes TQString form = e.attribute( "form" ); TQString f; if ( ! form.isNull() ) { f = form.stripWhiteSpace().lower(); } TQString fence = e.attribute( "fence" ); if ( ! fence.isNull() ) { if ( fence.stripWhiteSpace().lower() == "false" ) { continue; } if ( ! f.isNull() ) { if ( f == "postfix" ) { return i; } else { continue; } } } // Guess looking at contents TQDomNode child = e.firstChild(); TQString name; if ( child.isText() ) name = child.toText().data().stripWhiteSpace(); else if ( child.isEntityReference() ) name = child.nodeName(); else continue; if ( name == ")" || name == "]" || name == "}" || name == "CloseCurlyDoubleQuote" || name == "CloseCurlyQuote" || name == "RightAngleBracket" || name == "RightCeiling" || name == "RightDoubleBracket" || name == "RightFloor" ) { if ( f.isNull() || f == "postfix" ) return i; } if ( name == "(" || name == "[" || name == "{" || name == "LeftAngleBracket" || name == "LeftCeiling" || name == "LeftDoubleBracket" || name == "LeftFloor" || name == "OpenCurlyQuote" ) { if ( ! f.isNull() && f == "postfix" ) return i; } } } } return -1; } void BracketElement::writeMathMLAttributes( TQDomElement& element ) const { if ( left->getType() != LeftRoundBracket || right->getType() != RightRoundBracket ) { element.setAttribute( "open", TQString( TQChar( leftType ) ) ); element.setAttribute( "close", TQString( TQChar( rightType ) ) ); } if ( ! m_separators.isNull() ) { element.setAttribute( "separators", m_separators ); } } OverlineElement::OverlineElement( BasicElement* tqparent ) : SingleContentElement( tqparent ) { } OverlineElement::~OverlineElement() { } OverlineElement::OverlineElement( const OverlineElement& other ) : SingleContentElement( other ) { } bool OverlineElement::accept( ElementVisitor* visitor ) { return visitor->visit( this ); } void OverlineElement::entered( SequenceElement* /*child*/ ) { formula()->tell( i18n( "Overline" ) ); } void OverlineElement::calcSizes( const ContextStyle& context, ContextStyle::TextStyle tstyle, ContextStyle::IndexStyle istyle, StyleAttributes& style ) { SequenceElement* content = getContent(); content->calcSizes(context, tstyle, context.convertIndexStyleLower(istyle), style ); //luPixel distX = context.ptToPixelX( context.getThinSpace( tstyle, style.sizeFactor() ) ); luPixel distY = context.ptToPixelY( context.getThinSpace( tstyle, style.sizeFactor() ) ); //luPixel unit = (content->getHeight() + distY)/ 3; setWidth( content->getWidth() ); setHeight( content->getHeight() + distY ); content->setX( 0 ); content->setY( distY ); setBaseline(content->getBaseline() + content->getY()); } void OverlineElement::draw( TQPainter& painter, const LuPixelRect& r, const ContextStyle& context, ContextStyle::TextStyle tstyle, ContextStyle::IndexStyle istyle, StyleAttributes& style, const LuPixelPoint& parentOrigin ) { LuPixelPoint myPos( parentOrigin.x()+getX(), parentOrigin.y()+getY() ); //if ( !LuPixelRect( myPos.x(), myPos.y(), getWidth(), getHeight() ).intersects( r ) ) // return; SequenceElement* content = getContent(); content->draw( painter, r, context, tstyle, context.convertIndexStyleLower( istyle ), style, myPos ); luPixel x = myPos.x(); luPixel y = myPos.y(); //int distX = context.getDistanceX(tstyle); double factor = style.sizeFactor(); luPixel distY = context.ptToPixelY( context.getThinSpace( tstyle, factor ) ); //luPixel unit = (content->getHeight() + distY)/ 3; painter.setPen( TQPen( context.getDefaultColor(), context.layoutUnitToPixelY( context.getLineWidth( factor ) ) ) ); painter.drawLine( context.layoutUnitToPixelX( x ), context.layoutUnitToPixelY( y+distY/3 ), context.layoutUnitToPixelX( x+content->getWidth() ), context.layoutUnitToPixelY( y+distY/3 ) ); } TQString OverlineElement::toLatex() { return "\\overline{" + getContent()->toLatex() + "}"; } TQString OverlineElement::formulaString() { return getContent()->formulaString(); } void OverlineElement::writeMathML( TQDomDocument& doc, TQDomNode& tqparent, bool oasisFormat ) const { TQDomElement de = doc.createElement( oasisFormat ? "math:mover" : "mover" ); SingleContentElement::writeMathML( doc, de, oasisFormat ); TQDomElement op = doc.createElement( oasisFormat ? "math:mo" : "mo" ); // is this the right entity? Mozilla renders it correctly. op.appendChild( doc.createEntityReference( "OverBar" ) ); de.appendChild( op ); tqparent.appendChild( de ); } UnderlineElement::UnderlineElement( BasicElement* tqparent ) : SingleContentElement( tqparent ) { } UnderlineElement::~UnderlineElement() { } UnderlineElement::UnderlineElement( const UnderlineElement& other ) : SingleContentElement( other ) { } bool UnderlineElement::accept( ElementVisitor* visitor ) { return visitor->visit( this ); } void UnderlineElement::entered( SequenceElement* /*child*/ ) { formula()->tell( i18n( "Underline" ) ); } void UnderlineElement::calcSizes( const ContextStyle& context, ContextStyle::TextStyle tstyle, ContextStyle::IndexStyle istyle, StyleAttributes& style ) { SequenceElement* content = getContent(); double factor = style.sizeFactor(); content->calcSizes(context, tstyle, context.convertIndexStyleLower(istyle), style ); //luPixel distX = context.ptToPixelX( context.getThinSpace( tstyle ) ); luPixel distY = context.ptToPixelY( context.getThinSpace( tstyle, factor ) ); //luPixel unit = (content->getHeight() + distY)/ 3; setWidth( content->getWidth() ); setHeight( content->getHeight() + distY ); content->setX( 0 ); content->setY( 0 ); setBaseline(content->getBaseline() + content->getY()); } void UnderlineElement::draw( TQPainter& painter, const LuPixelRect& r, const ContextStyle& context, ContextStyle::TextStyle tstyle, ContextStyle::IndexStyle istyle, StyleAttributes& style, const LuPixelPoint& parentOrigin ) { LuPixelPoint myPos( parentOrigin.x()+getX(), parentOrigin.y()+getY() ); //if ( !LuPixelRect( myPos.x(), myPos.y(), getWidth(), getHeight() ).intersects( r ) ) // return; SequenceElement* content = getContent(); content->draw( painter, r, context, tstyle, context.convertIndexStyleLower( istyle ), style, myPos ); luPixel x = myPos.x(); luPixel y = myPos.y(); //int distX = context.getDistanceX(tstyle); //luPixel distY = context.ptToPixelY( context.getThinSpace( tstyle ) ); //luPixel unit = (content->getHeight() + distY)/ 3; double factor = style.sizeFactor(); painter.setPen( TQPen( context.getDefaultColor(), context.layoutUnitToPixelY( context.getLineWidth( factor ) ) ) ); painter.drawLine( context.layoutUnitToPixelX( x ), context.layoutUnitToPixelY( y+getHeight()-context.getLineWidth( factor ) ), context.layoutUnitToPixelX( x+content->getWidth() ), context.layoutUnitToPixelY( y+getHeight()-context.getLineWidth( factor ) ) ); } TQString UnderlineElement::toLatex() { return "\\underline{" + getContent()->toLatex() + "}"; } TQString UnderlineElement::formulaString() { return getContent()->formulaString(); } void UnderlineElement::writeMathML( TQDomDocument& doc, TQDomNode& tqparent, bool oasisFormat ) const { TQDomElement de = doc.createElement( oasisFormat ? "math:munder" : "munder" ); SingleContentElement::writeMathML( doc, de, oasisFormat ); TQDomElement op = doc.createElement( oasisFormat ? "math:mo" : "mo" ); // is this the right entity? Mozilla renders it correctly. op.appendChild( doc.createEntityReference( "UnderBar" ) ); de.appendChild( op ); tqparent.appendChild( de ); } KFORMULA_NAMESPACE_END