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office-gobmx/starmath/source/node.cxx
Mike Kaganski f9cac88fc2 Let ESelection use EPaM for simplification 
And drop EPosition, which duplicates EPaM, except for its default
ctor (used in a single place).

Change-Id: I48bb6dafcba84465d61579df0ec71b815945532a
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/177075
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
Tested-by: Jenkins
2024-11-24 08:12:55 +01:00

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/* -*- 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/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <symbol.hxx>
#include <smmod.hxx>
#include "tmpdevice.hxx"
#include <utility>
#include <visitors.hxx>
#include <tools/UnitConversion.hxx>
#include <vcl/metric.hxx>
#include <o3tl/safeint.hxx>
#include <osl/diagnose.h>
#include <basegfx/numeric/ftools.hxx>
#include <unicode/uchar.h>
#include <unicode/uscript.h>
namespace {
template<typename F>
void ForEachNonNull(SmNode *pNode, F && f)
{
size_t nSize = pNode->GetNumSubNodes();
for (size_t i = 0; i < nSize; ++i)
{
SmNode *pSubNode = pNode->GetSubNode(i);
if (pSubNode != nullptr)
f(pSubNode);
}
}
}
SmNode::SmNode(SmNodeType eNodeType, SmToken aNodeToken)
: maNodeToken(std::move( aNodeToken ))
, meType( eNodeType )
, meScaleMode( SmScaleMode::None )
, meRectHorAlign( RectHorAlign::Left )
, mnFlags( FontChangeMask::None )
, mnAttributes( FontAttribute::None )
, mbIsPhantom( false )
, mbIsSelected( false )
, mnAccIndex( -1 )
, mpParentNode( nullptr )
{
}
SmNode::~SmNode()
{
}
const SmNode * SmNode::GetLeftMost() const
// returns leftmost node of current subtree.
//! (this assumes the one with index 0 is always the leftmost subnode
//! for the current node).
{
const SmNode *pNode = GetNumSubNodes() > 0 ?
GetSubNode(0) : nullptr;
return pNode ? pNode->GetLeftMost() : this;
}
void SmNode::SetPhantom(bool bIsPhantomP)
{
if (! (Flags() & FontChangeMask::Phantom))
mbIsPhantom = bIsPhantomP;
bool b = mbIsPhantom;
ForEachNonNull(this, [b](SmNode *pNode){pNode->SetPhantom(b);});
}
void SmNode::SetColor(const Color& rColor)
{
if (! (Flags() & FontChangeMask::Color))
GetFont().SetColor(rColor);
ForEachNonNull(this, [&rColor](SmNode *pNode){pNode->SetColor(rColor);});
}
void SmNode::SetAttribute(FontAttribute nAttrib)
{
if (
(nAttrib == FontAttribute::Bold && !(Flags() & FontChangeMask::Bold)) ||
(nAttrib == FontAttribute::Italic && !(Flags() & FontChangeMask::Italic))
)
{
mnAttributes |= nAttrib;
}
ForEachNonNull(this, [nAttrib](SmNode *pNode){pNode->SetAttribute(nAttrib);});
}
void SmNode::ClearAttribute(FontAttribute nAttrib)
{
if (
(nAttrib == FontAttribute::Bold && !(Flags() & FontChangeMask::Bold)) ||
(nAttrib == FontAttribute::Italic && !(Flags() & FontChangeMask::Italic))
)
{
mnAttributes &= ~nAttrib;
}
ForEachNonNull(this, [nAttrib](SmNode *pNode){pNode->ClearAttribute(nAttrib);});
}
void SmNode::SetFont(const SmFace &rFace)
{
if (!(Flags() & FontChangeMask::Face))
GetFont() = rFace;
ForEachNonNull(this, [&rFace](SmNode *pNode){pNode->SetFont(rFace);});
}
void SmNode::SetFontSize(const Fraction &rSize, FontSizeType nType)
//! 'rSize' is in units of pts
{
Size aFntSize;
if (!(Flags() & FontChangeMask::Size))
{
Fraction aVal(conversionFract(o3tl::Length::pt, SmO3tlLengthUnit()) * rSize);
tools::Long nHeight = static_cast<tools::Long>(aVal);
aFntSize = GetFont().GetFontSize();
aFntSize.setWidth( 0 );
switch(nType)
{
case FontSizeType::ABSOLUT:
aFntSize.setHeight( nHeight );
break;
case FontSizeType::PLUS:
aFntSize.AdjustHeight(nHeight );
break;
case FontSizeType::MINUS:
aFntSize.AdjustHeight( -nHeight );
break;
case FontSizeType::MULTIPLY:
aFntSize.setHeight( static_cast<tools::Long>(Fraction(aFntSize.Height()) * rSize) );
break;
case FontSizeType::DIVIDE:
if (rSize != Fraction(0))
aFntSize.setHeight( static_cast<tools::Long>(Fraction(aFntSize.Height()) / rSize) );
break;
default:
break;
}
// check the requested size against maximum value
const int nMaxVal = o3tl::convert(128, o3tl::Length::pt, SmO3tlLengthUnit());
if (aFntSize.Height() > nMaxVal)
aFntSize.setHeight( nMaxVal );
GetFont().SetSize(aFntSize);
}
ForEachNonNull(this, [&rSize, &nType](SmNode *pNode){pNode->SetFontSize(rSize, nType);});
}
void SmNode::SetSize(const Fraction &rSize)
{
GetFont() *= rSize;
ForEachNonNull(this, [&rSize](SmNode *pNode){pNode->SetSize(rSize);});
}
void SmNode::SetRectHorAlign(RectHorAlign eHorAlign, bool bApplyToSubTree )
{
meRectHorAlign = eHorAlign;
if (bApplyToSubTree)
ForEachNonNull(this, [eHorAlign](SmNode *pNode){pNode->SetRectHorAlign(eHorAlign);});
}
void SmNode::PrepareAttributes()
{
GetFont().SetWeight((Attributes() & FontAttribute::Bold) ? WEIGHT_BOLD : WEIGHT_NORMAL);
GetFont().SetItalic((Attributes() & FontAttribute::Italic) ? ITALIC_NORMAL : ITALIC_NONE);
}
void SmNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell, int nDepth)
{
if (nDepth > 1024)
throw std::range_error("parser depth limit");
mbIsPhantom = false;
mnFlags = FontChangeMask::None;
mnAttributes = FontAttribute::None;
switch (rFormat.GetHorAlign())
{ case SmHorAlign::Left: meRectHorAlign = RectHorAlign::Left; break;
case SmHorAlign::Center: meRectHorAlign = RectHorAlign::Center; break;
case SmHorAlign::Right: meRectHorAlign = RectHorAlign::Right; break;
}
GetFont() = rFormat.GetFont(FNT_MATH);
OSL_ENSURE( GetFont().GetCharSet() == RTL_TEXTENCODING_UNICODE,
"unexpected CharSet" );
GetFont().SetWeight(WEIGHT_NORMAL);
GetFont().SetItalic(ITALIC_NONE);
ForEachNonNull(this, [&rFormat, &rDocShell, nDepth](SmNode *pNode){pNode->Prepare(rFormat, rDocShell, nDepth + 1);});
}
void SmNode::Move(const Point& rVector)
{
if (rVector.X() == 0 && rVector.Y() == 0)
return;
SmRect::Move(rVector);
ForEachNonNull(this, [&rVector](SmNode *pNode){pNode->Move(rVector);});
}
void SmNode::AdaptToX(OutputDevice &/*rDev*/, tools::Long /*nWidth*/)
{
}
void SmNode::AdaptToY(OutputDevice &/*rDev*/, tools::Long /*nHeight*/)
{
}
const SmNode * SmNode::FindTokenAt(sal_uInt16 nRow, sal_uInt16 nCol) const
// returns (first) ** visible ** (sub)node with the tokens text at
// position 'nRow', 'nCol'.
//! (there should be exactly one such node if any)
{
if ( IsVisible()
&& nRow == GetSelection().start.nPara
&& nCol >= GetSelection().start.nIndex && nCol <= GetSelection().end.nIndex )
return this;
else
{
size_t nNumSubNodes = GetNumSubNodes();
for (size_t i = 0; i < nNumSubNodes; ++i)
{
const SmNode *pNode = GetSubNode(i);
if (!pNode)
continue;
const SmNode *pResult = pNode->FindTokenAt(nRow, nCol);
if (pResult)
return pResult;
}
}
return nullptr;
}
const SmNode * SmNode::FindRectClosestTo(const Point &rPoint) const
{
tools::Long nDist = LONG_MAX;
const SmNode *pResult = nullptr;
if (IsVisible())
pResult = this;
else
{
size_t nNumSubNodes = GetNumSubNodes();
for (size_t i = 0; i < nNumSubNodes; ++i)
{
const SmNode *pNode = GetSubNode(i);
if (!pNode)
continue;
const SmNode *pFound = pNode->FindRectClosestTo(rPoint);
if (pFound)
{
tools::Long nTmp = pFound->OrientedDist(rPoint);
if (nTmp < nDist)
{
nDist = nTmp;
pResult = pFound;
// quit immediately if 'rPoint' is inside the *should not
// overlap with other rectangles* part.
// This (partly) serves for getting the attributes in eg
// "bar overstrike a".
// ('nDist < 0' is used as *quick shot* to avoid evaluation of
// the following expression, where the result is already determined)
if (nDist < 0 && pFound->IsInsideRect(rPoint))
break;
}
}
}
}
return pResult;
}
const SmNode * SmNode::FindNodeWithAccessibleIndex(sal_Int32 nAccIdx) const
{
const SmNode *pResult = nullptr;
sal_Int32 nIdx = GetAccessibleIndex();
OUStringBuffer aTxt;
if (nIdx >= 0)
GetAccessibleText( aTxt ); // get text if used in following 'if' statement
if (nIdx >= 0
&& nIdx <= nAccIdx && nAccIdx < nIdx + aTxt.getLength())
pResult = this;
else
{
size_t nNumSubNodes = GetNumSubNodes();
for (size_t i = 0; i < nNumSubNodes; ++i)
{
const SmNode *pNode = GetSubNode(i);
if (!pNode)
continue;
pResult = pNode->FindNodeWithAccessibleIndex(nAccIdx);
if (pResult)
return pResult;
}
}
return pResult;
}
SmStructureNode::~SmStructureNode()
{
ForEachNonNull(this, std::default_delete<SmNode>());
}
void SmStructureNode::ClearSubNodes()
{
maSubNodes.clear();
}
void SmStructureNode::SetSubNodes(std::unique_ptr<SmNode> pFirst, std::unique_ptr<SmNode> pSecond, std::unique_ptr<SmNode> pThird)
{
size_t nSize = pThird ? 3 : (pSecond ? 2 : (pFirst ? 1 : 0));
maSubNodes.resize( nSize );
if (pFirst)
maSubNodes[0] = pFirst.release();
if (pSecond)
maSubNodes[1] = pSecond.release();
if (pThird)
maSubNodes[2] = pThird.release();
ClaimPaternity();
}
void SmStructureNode::SetSubNodes(SmNode* pFirst, SmNode* pSecond, SmNode* pThird)
{
size_t nSize = pThird ? 3 : (pSecond ? 2 : (pFirst ? 1 : 0));
maSubNodes.resize( nSize );
if (pFirst)
maSubNodes[0] = pFirst;
if (pSecond)
maSubNodes[1] = pSecond;
if (pThird)
maSubNodes[2] = pThird;
ClaimPaternity();
}
void SmStructureNode::SetSubNodesBinMo(std::unique_ptr<SmNode> pFirst, std::unique_ptr<SmNode> pSecond, std::unique_ptr<SmNode> pThird)
{
if(GetType()==SmNodeType::BinDiagonal)
{
size_t nSize = pSecond ? 3 : (pThird ? 2 : (pFirst ? 1 : 0));
maSubNodes.resize( nSize );
if (pFirst)
maSubNodes[0] = pFirst.release();
if (pSecond)
maSubNodes[2] = pSecond.release();
if (pThird)
maSubNodes[1] = pThird.release();
}
else
{
size_t nSize = pThird ? 3 : (pSecond ? 2 : (pFirst ? 1 : 0));
maSubNodes.resize( nSize );
if (pFirst)
maSubNodes[0] = pFirst.release();
if (pSecond)
maSubNodes[1] = pSecond.release();
if (pThird)
maSubNodes[2] = pThird.release();
}
ClaimPaternity();
}
void SmStructureNode::SetSubNodes(SmNodeArray&& rNodeArray)
{
maSubNodes = std::move(rNodeArray);
ClaimPaternity();
}
bool SmStructureNode::IsVisible() const
{
return false;
}
size_t SmStructureNode::GetNumSubNodes() const
{
return maSubNodes.size();
}
SmNode* SmStructureNode::GetSubNode(size_t nIndex)
{
return maSubNodes[nIndex];
}
SmNode* SmStructureNode::GetSubNodeBinMo(size_t nIndex) const
{
if(GetType()==SmNodeType::BinDiagonal)
{
if (nIndex==1)
nIndex = 2;
else if (nIndex==2)
nIndex = 1;
}
return maSubNodes[nIndex];
}
void SmStructureNode::GetAccessibleText( OUStringBuffer &rText ) const
{
ForEachNonNull(const_cast<SmStructureNode *>(this),
[&rText](SmNode *pNode)
{
if (pNode->IsVisible())
pNode->SetAccessibleIndex(rText.getLength());
pNode->GetAccessibleText( rText );
});
}
void SmStructureNode::ClaimPaternity()
{
ForEachNonNull(this, [this](SmNode *pNode){pNode->SetParent(this);});
}
int SmStructureNode::IndexOfSubNode(SmNode const * pSubNode)
{
size_t nSize = GetNumSubNodes();
for (size_t i = 0; i < nSize; i++)
if (pSubNode == GetSubNode(i))
return i;
return -1;
}
void SmStructureNode::SetSubNode(size_t nIndex, SmNode* pNode)
{
size_t size = maSubNodes.size();
if (size <= nIndex)
{
//Resize subnodes array
maSubNodes.resize(nIndex + 1);
//Set new slots to NULL except at nIndex
for (size_t i = size; i < nIndex; i++)
maSubNodes[i] = nullptr;
}
maSubNodes[nIndex] = pNode;
if (pNode)
pNode->SetParent(this);
}
bool SmVisibleNode::IsVisible() const
{
return true;
}
size_t SmVisibleNode::GetNumSubNodes() const
{
return 0;
}
SmNode * SmVisibleNode::GetSubNode(size_t /*nIndex*/)
{
return nullptr;
}
void SmGraphicNode::GetAccessibleText( OUStringBuffer &rText ) const
{
rText.append(GetToken().aText);
}
void SmTableNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
// arranges all subnodes in one column
{
SmNode *pNode;
size_t nSize = GetNumSubNodes();
// make distance depend on font size
tools::Long nDist = +(rFormat.GetDistance(DIS_VERTICAL)
* GetFont().GetFontSize().Height()) / 100;
if (nSize < 1)
return;
// arrange subnodes and get maximum width of them
tools::Long nMaxWidth = 0,
nTmp;
for (size_t i = 0; i < nSize; ++i)
{
if (nullptr != (pNode = GetSubNode(i)))
{ pNode->Arrange(rDev, rFormat);
if ((nTmp = pNode->GetItalicWidth()) > nMaxWidth)
nMaxWidth = nTmp;
}
}
Point aPos;
SmRect::operator = (SmRect(nMaxWidth, 1));
for (size_t i = 0; i < nSize; ++i)
{
if (nullptr != (pNode = GetSubNode(i)))
{ const SmRect &rNodeRect = pNode->GetRect();
const SmNode *pCoNode = pNode->GetLeftMost();
RectHorAlign eHorAlign = pCoNode->GetRectHorAlign();
aPos = rNodeRect.AlignTo(*this, RectPos::Bottom,
eHorAlign, RectVerAlign::Baseline);
if (i)
aPos.AdjustY(nDist );
pNode->MoveTo(aPos);
ExtendBy(rNodeRect, nSize > 1 ? RectCopyMBL::None : RectCopyMBL::Arg);
}
}
// #i972#
if (HasBaseline())
mnFormulaBaseline = GetBaseline();
else
{
SmTmpDevice aTmpDev (rDev, true);
aTmpDev.SetFont(GetFont());
SmRect aRect(aTmpDev, &rFormat, u"a"_ustr, GetFont().GetBorderWidth());
mnFormulaBaseline = GetAlignM();
// move from middle position by constant - distance
// between middle and baseline for single letter
mnFormulaBaseline += aRect.GetBaseline() - aRect.GetAlignM();
}
}
const SmNode * SmTableNode::GetLeftMost() const
{
return this;
}
tools::Long SmTableNode::GetFormulaBaseline() const
{
return mnFormulaBaseline;
}
/**************************************************************************/
void SmLineNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell, int nDepth)
{
SmNode::Prepare(rFormat, rDocShell, nDepth);
// Here we use the 'FNT_VARIABLE' font since it's ascent and descent in general fit better
// to the rest of the formula compared to the 'FNT_MATH' font.
GetFont() = rFormat.GetFont(FNT_VARIABLE);
Flags() |= FontChangeMask::Face;
}
/**************************************************************************/
void SmLineNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
// arranges all subnodes in one row with some extra space between
{
SmNode *pNode;
size_t nSize = GetNumSubNodes();
for (size_t i = 0; i < nSize; ++i)
{
if (nullptr != (pNode = GetSubNode(i)))
pNode->Arrange(rDev, rFormat);
}
SmTmpDevice aTmpDev (rDev, true);
aTmpDev.SetFont(GetFont());
if (nSize < 1)
{
// provide an empty rectangle with alignment parameters for the "current"
// font (in order to make "a^1 {}_2^3 a_4" work correct, that is, have the
// same sub-/supscript positions.)
//! be sure to use a character that has explicitly defined HiAttribut
//! line in rect.cxx such as 'a' in order to make 'vec a' look same to
//! 'vec {a}'.
SmRect::operator = (SmRect(aTmpDev, &rFormat, u"a"_ustr,
GetFont().GetBorderWidth()));
// make sure that the rectangle occupies (almost) no space
SetWidth(1);
SetItalicSpaces(0, 0);
return;
}
// make distance depend on font size
tools::Long nDist = (rFormat.GetDistance(DIS_HORIZONTAL) * GetFont().GetFontSize().Height()) / 100;
if (!IsUseExtraSpaces())
nDist = 0;
Point aPos;
// copy the first node into LineNode and extend by the others
if (nullptr != (pNode = GetSubNode(0)))
SmRect::operator = (pNode->GetRect());
for (size_t i = 1; i < nSize; ++i)
{
if (nullptr != (pNode = GetSubNode(i)))
{
aPos = pNode->AlignTo(*this, RectPos::Right, RectHorAlign::Center, RectVerAlign::Baseline);
// add horizontal space to the left for each but the first sub node
aPos.AdjustX(nDist );
pNode->MoveTo(aPos);
ExtendBy( *pNode, RectCopyMBL::Xor );
}
}
}
/**************************************************************************/
void SmExpressionNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
// as 'SmLineNode::Arrange' but keeps alignment of leftmost subnode
{
SmLineNode::Arrange(rDev, rFormat);
// copy alignment of leftmost subnode if any
const SmNode *pNode = GetLeftMost();
if (pNode)
SetRectHorAlign(pNode->GetRectHorAlign(), false);
}
/**************************************************************************/
void SmUnHorNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
{
bool bIsPostfix = GetToken().eType == TFACT;
SmNode *pNode0 = GetSubNode(0),
*pNode1 = GetSubNode(1);
SmNode *pOper = bIsPostfix ? pNode1 : pNode0,
*pBody = bIsPostfix ? pNode0 : pNode1;
assert(pOper);
assert(pBody);
pOper->SetSize(Fraction (rFormat.GetRelSize(SIZ_OPERATOR), 100));
pOper->Arrange(rDev, rFormat);
pBody->Arrange(rDev, rFormat);
tools::Long nDist = (pOper->GetRect().GetWidth() * rFormat.GetDistance(DIS_HORIZONTAL)) / 100;
SmRect::operator = (*pNode0);
Point aPos = pNode1->AlignTo(*this, RectPos::Right, RectHorAlign::Center, RectVerAlign::Baseline);
aPos.AdjustX(nDist );
pNode1->MoveTo(aPos);
ExtendBy(*pNode1, RectCopyMBL::Xor);
}
/**************************************************************************/
namespace {
void lcl_GetHeightVerOffset(const SmRect &rRect,
tools::Long &rHeight, tools::Long &rVerOffset)
// calculate height and vertical offset of root sign suitable for 'rRect'
{
rVerOffset = (rRect.GetBottom() - rRect.GetAlignB()) / 2;
rHeight = rRect.GetHeight() - rVerOffset;
OSL_ENSURE(rHeight >= 0, "Sm : Ooops...");
OSL_ENSURE(rVerOffset >= 0, "Sm : Ooops...");
}
Point lcl_GetExtraPos(const SmRect &rRootSymbol,
const SmRect &rExtra)
{
const Size &rSymSize = rRootSymbol.GetSize();
Point aPos = rRootSymbol.GetTopLeft()
+ Point((rSymSize.Width() * 70) / 100,
(rSymSize.Height() * 52) / 100);
// from this calculate topleft edge of 'rExtra'
aPos.AdjustX( -(rExtra.GetWidth() + rExtra.GetItalicRightSpace()) );
aPos.AdjustY( -(rExtra.GetHeight()) );
// if there's enough space move a bit less to the right
// examples: "nroot i a", "nroot j a"
// (it looks better if we don't use italic-spaces here)
tools::Long nX = rRootSymbol.GetLeft() + (rSymSize.Width() * 30) / 100;
if (aPos.X() > nX)
aPos.setX( nX );
return aPos;
}
}
void SmRootNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
{
//! pExtra needs to have the smaller index than pRootSym in order to
//! not to get the root symbol but the pExtra when clicking on it in the
//! GraphicWindow. (That is because of the simplicity of the algorithm
//! that finds the node corresponding to a mouseclick in the window.)
SmNode *pExtra = GetSubNode(0),
*pRootSym = GetSubNode(1),
*pBody = GetSubNode(2);
assert(pRootSym);
assert(pBody);
pBody->Arrange(rDev, rFormat);
tools::Long nHeight,
nVerOffset;
lcl_GetHeightVerOffset(*pBody, nHeight, nVerOffset);
nHeight += rFormat.GetDistance(DIS_ROOT)
* GetFont().GetFontSize().Height() / 100;
if (nHeight < 0)
{
SAL_WARN("starmath", "negative height");
nHeight = 0;
}
// font specialist advised to change the width first
pRootSym->AdaptToY(rDev, nHeight);
pRootSym->AdaptToX(rDev, pBody->GetItalicWidth());
pRootSym->Arrange(rDev, rFormat);
// Set the top and bottom of the root symbol to the top and bottom of its glyph bounding rect,
// to get accurate position of the root symbol.
SmRect rRootSymRect = pRootSym->AsGlyphRect();
pRootSym->SetTop(rRootSymRect.GetTop());
pRootSym->SetBottom(rRootSymRect.GetBottom());
Point aPos = pRootSym->AlignTo(*pBody, RectPos::Left, RectHorAlign::Center, RectVerAlign::Baseline);
//! override calculated vertical position
aPos.setY( pRootSym->GetTop() + pBody->GetBottom() - pRootSym->GetBottom() );
aPos.AdjustY( -nVerOffset );
pRootSym->MoveTo(aPos);
if (pExtra)
{ pExtra->SetSize(Fraction(rFormat.GetRelSize(SIZ_INDEX), 100));
pExtra->Arrange(rDev, rFormat);
aPos = lcl_GetExtraPos(*pRootSym, *pExtra);
pExtra->MoveTo(aPos);
}
SmRect::operator = (*pBody);
ExtendBy(*pRootSym, RectCopyMBL::This);
if (pExtra)
ExtendBy(*pExtra, RectCopyMBL::This, true);
}
/**************************************************************************/
void SmBinHorNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
{
SmNode *pLeft = LeftOperand(),
*pOper = Symbol(),
*pRight = RightOperand();
assert(pLeft);
assert(pOper);
assert(pRight);
pOper->SetSize(Fraction (rFormat.GetRelSize(SIZ_OPERATOR), 100));
pLeft ->Arrange(rDev, rFormat);
pOper ->Arrange(rDev, rFormat);
pRight->Arrange(rDev, rFormat);
const SmRect &rOpRect = pOper->GetRect();
tools::Long nMul;
if (o3tl::checked_multiply<tools::Long>(rOpRect.GetWidth(), rFormat.GetDistance(DIS_HORIZONTAL), nMul))
{
SAL_WARN("starmath", "integer overflow");
return;
}
tools::Long nDist = nMul / 100;
SmRect::operator = (*pLeft);
Point aPos;
aPos = pOper->AlignTo(*this, RectPos::Right, RectHorAlign::Center, RectVerAlign::Baseline);
aPos.AdjustX(nDist );
pOper->MoveTo(aPos);
ExtendBy(*pOper, RectCopyMBL::Xor);
aPos = pRight->AlignTo(*this, RectPos::Right, RectHorAlign::Center, RectVerAlign::Baseline);
aPos.AdjustX(nDist );
pRight->MoveTo(aPos);
ExtendBy(*pRight, RectCopyMBL::Xor);
}
/**************************************************************************/
void SmBinVerNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
{
SmNode *pNum = GetSubNode(0),
*pLine = GetSubNode(1),
*pDenom = GetSubNode(2);
assert(pNum);
assert(pLine);
assert(pDenom);
bool bIsTextmode = rFormat.IsTextmode();
if (bIsTextmode)
{
Fraction aFraction(rFormat.GetRelSize(SIZ_INDEX), 100);
pNum ->SetSize(aFraction);
pLine ->SetSize(aFraction);
pDenom->SetSize(aFraction);
}
pNum ->Arrange(rDev, rFormat);
pDenom->Arrange(rDev, rFormat);
tools::Long nFontHeight = GetFont().GetFontSize().Height(),
nExtLen = nFontHeight * rFormat.GetDistance(DIS_FRACTION) / 100,
nThick = nFontHeight * rFormat.GetDistance(DIS_STROKEWIDTH) / 100,
nWidth = std::max(pNum->GetItalicWidth(), pDenom->GetItalicWidth()),
nNumDist = bIsTextmode ? 0 :
nFontHeight * rFormat.GetDistance(DIS_NUMERATOR) / 100,
nDenomDist = bIsTextmode ? 0 :
nFontHeight * rFormat.GetDistance(DIS_DENOMINATOR) / 100;
// font specialist advised to change the width first
pLine->AdaptToY(rDev, nThick);
pLine->AdaptToX(rDev, nWidth + 2 * nExtLen);
pLine->Arrange(rDev, rFormat);
// get horizontal alignment for numerator
const SmNode *pLM = pNum->GetLeftMost();
RectHorAlign eHorAlign = pLM->GetRectHorAlign();
// move numerator to its position
Point aPos = pNum->AlignTo(*pLine, RectPos::Top, eHorAlign, RectVerAlign::Baseline);
aPos.AdjustY( -nNumDist );
pNum->MoveTo(aPos);
// get horizontal alignment for denominator
pLM = pDenom->GetLeftMost();
eHorAlign = pLM->GetRectHorAlign();
// move denominator to its position
aPos = pDenom->AlignTo(*pLine, RectPos::Bottom, eHorAlign, RectVerAlign::Baseline);
aPos.AdjustY(nDenomDist );
pDenom->MoveTo(aPos);
SmRect::operator = (*pNum);
ExtendBy(*pDenom, RectCopyMBL::None).ExtendBy(*pLine, RectCopyMBL::None, pLine->GetCenterY());
}
const SmNode * SmBinVerNode::GetLeftMost() const
{
return this;
}
namespace {
/// @return value of the determinant formed by the two points
double Det(const Point &rHeading1, const Point &rHeading2)
{
return rHeading1.X() * rHeading2.Y() - rHeading1.Y() * rHeading2.X();
}
/// Is true iff the point 'rPoint1' belongs to the straight line through 'rPoint2'
/// and has the direction vector 'rHeading2'
bool IsPointInLine(const Point &rPoint1,
const Point &rPoint2, const Point &rHeading2)
{
assert(rHeading2 != Point());
bool bRes = false;
static const double eps = 5.0 * DBL_EPSILON;
double fLambda;
if (std::abs(rHeading2.X()) > std::abs(rHeading2.Y()))
{
fLambda = (rPoint1.X() - rPoint2.X()) / static_cast<double>(rHeading2.X());
bRes = fabs(rPoint1.Y() - (rPoint2.Y() + fLambda * rHeading2.Y())) < eps;
}
else
{
fLambda = (rPoint1.Y() - rPoint2.Y()) / static_cast<double>(rHeading2.Y());
bRes = fabs(rPoint1.X() - (rPoint2.X() + fLambda * rHeading2.X())) < eps;
}
return bRes;
}
sal_uInt16 GetLineIntersectionPoint(Point &rResult,
const Point& rPoint1, const Point &rHeading1,
const Point& rPoint2, const Point &rHeading2)
{
assert(rHeading1 != Point());
assert(rHeading2 != Point());
sal_uInt16 nRes = 1;
static const double eps = 5.0 * DBL_EPSILON;
// are the direction vectors linearly dependent?
double fDet = Det(rHeading1, rHeading2);
if (fabs(fDet) < eps)
{
nRes = IsPointInLine(rPoint1, rPoint2, rHeading2) ? USHRT_MAX : 0;
rResult = nRes ? rPoint1 : Point();
}
else
{
// here we do not pay attention to the computational accuracy
// (that would be more complicated and is not really worth it in this case)
double fLambda = ( (rPoint1.Y() - rPoint2.Y()) * rHeading2.X()
- (rPoint1.X() - rPoint2.X()) * rHeading2.Y())
/ fDet;
rResult = Point(rPoint1.X() + static_cast<tools::Long>(fLambda * rHeading1.X()),
rPoint1.Y() + static_cast<tools::Long>(fLambda * rHeading1.Y()));
}
return nRes;
}
}
/// @return position and size of the diagonal line
/// premise: SmRect of the node defines the limitation(!) consequently it has to be known upfront
void SmBinDiagonalNode::GetOperPosSize(Point &rPos, Size &rSize,
const Point &rDiagPoint, double fAngleDeg) const
{
double fAngleRad = basegfx::deg2rad(fAngleDeg);
tools::Long nRectLeft = GetItalicLeft(),
nRectRight = GetItalicRight(),
nRectTop = GetTop(),
nRectBottom = GetBottom();
Point aRightHdg (100, 0),
aDownHdg (0, 100),
aDiagHdg ( static_cast<tools::Long>(100.0 * cos(fAngleRad)),
static_cast<tools::Long>(-100.0 * sin(fAngleRad)) );
tools::Long nLeft, nRight, nTop, nBottom; // margins of the rectangle for the diagonal
Point aPoint;
if (IsAscending())
{
// determine top right corner
GetLineIntersectionPoint(aPoint,
Point(nRectLeft, nRectTop), aRightHdg,
rDiagPoint, aDiagHdg);
// is there a point of intersection with the top border?
if (aPoint.X() <= nRectRight)
{
nRight = aPoint.X();
nTop = nRectTop;
}
else
{
// there has to be a point of intersection with the right border!
GetLineIntersectionPoint(aPoint,
Point(nRectRight, nRectTop), aDownHdg,
rDiagPoint, aDiagHdg);
nRight = nRectRight;
nTop = aPoint.Y();
}
// determine bottom left corner
GetLineIntersectionPoint(aPoint,
Point(nRectLeft, nRectBottom), aRightHdg,
rDiagPoint, aDiagHdg);
// is there a point of intersection with the bottom border?
if (aPoint.X() >= nRectLeft)
{
nLeft = aPoint.X();
nBottom = nRectBottom;
}
else
{
// there has to be a point of intersection with the left border!
GetLineIntersectionPoint(aPoint,
Point(nRectLeft, nRectTop), aDownHdg,
rDiagPoint, aDiagHdg);
nLeft = nRectLeft;
nBottom = aPoint.Y();
}
}
else
{
// determine top left corner
GetLineIntersectionPoint(aPoint,
Point(nRectLeft, nRectTop), aRightHdg,
rDiagPoint, aDiagHdg);
// is there a point of intersection with the top border?
if (aPoint.X() >= nRectLeft)
{
nLeft = aPoint.X();
nTop = nRectTop;
}
else
{
// there has to be a point of intersection with the left border!
GetLineIntersectionPoint(aPoint,
Point(nRectLeft, nRectTop), aDownHdg,
rDiagPoint, aDiagHdg);
nLeft = nRectLeft;
nTop = aPoint.Y();
}
// determine bottom right corner
GetLineIntersectionPoint(aPoint,
Point(nRectLeft, nRectBottom), aRightHdg,
rDiagPoint, aDiagHdg);
// is there a point of intersection with the bottom border?
if (aPoint.X() <= nRectRight)
{
nRight = aPoint.X();
nBottom = nRectBottom;
}
else
{
// there has to be a point of intersection with the right border!
GetLineIntersectionPoint(aPoint,
Point(nRectRight, nRectTop), aDownHdg,
rDiagPoint, aDiagHdg);
nRight = nRectRight;
nBottom = aPoint.Y();
}
}
rSize = Size(nRight - nLeft + 1, nBottom - nTop + 1);
rPos.setX( nLeft );
rPos.setY( nTop );
}
void SmBinDiagonalNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
{
// Both arguments have to get into the SubNodes before the Operator so that clicking
// within the GraphicWindow sets the FormulaCursor correctly (cf. SmRootNode)
SmNode *pLeft = GetSubNode(0),
*pRight = GetSubNode(1),
*pLine = GetSubNode(2);
assert(pLeft);
assert(pRight);
assert(pLine && pLine->GetType() == SmNodeType::PolyLine);
SmPolyLineNode *pOper = static_cast<SmPolyLineNode *>(pLine);
assert(pOper);
//! some routines being called extract some info from the OutputDevice's
//! font (eg the space to be used for borders OR the font name(!!)).
//! Thus the font should reflect the needs and has to be set!
SmTmpDevice aTmpDev (rDev, true);
aTmpDev.SetFont(GetFont());
pLeft->Arrange(aTmpDev, rFormat);
pRight->Arrange(aTmpDev, rFormat);
// determine implicitly the values (incl. the margin) of the diagonal line
pOper->Arrange(aTmpDev, rFormat);
tools::Long nDelta = pOper->GetWidth() * 8 / 10;
// determine TopLeft position from the right argument
Point aPos;
aPos.setX( pLeft->GetItalicRight() + nDelta + pRight->GetItalicLeftSpace() );
if (IsAscending())
aPos.setY( pLeft->GetBottom() + nDelta );
else
aPos.setY( pLeft->GetTop() - nDelta - pRight->GetHeight() );
pRight->MoveTo(aPos);
// determine new baseline
tools::Long nTmpBaseline = IsAscending() ? (pLeft->GetBottom() + pRight->GetTop()) / 2
: (pLeft->GetTop() + pRight->GetBottom()) / 2;
Point aLogCenter ((pLeft->GetItalicRight() + pRight->GetItalicLeft()) / 2,
nTmpBaseline);
SmRect::operator = (*pLeft);
ExtendBy(*pRight, RectCopyMBL::None);
// determine position and size of diagonal line
Size aTmpSize;
GetOperPosSize(aPos, aTmpSize, aLogCenter, IsAscending() ? 60.0 : -60.0);
// font specialist advised to change the width first
pOper->AdaptToY(aTmpDev, aTmpSize.Height());
pOper->AdaptToX(aTmpDev, aTmpSize.Width());
// and make it active
pOper->Arrange(aTmpDev, rFormat);
pOper->MoveTo(aPos);
ExtendBy(*pOper, RectCopyMBL::None, nTmpBaseline);
}
/**************************************************************************/
void SmSubSupNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
{
OSL_ENSURE(GetNumSubNodes() == 1 + SUBSUP_NUM_ENTRIES,
"Sm: wrong number of subnodes");
SmNode *pBody = GetBody();
assert(pBody);
tools::Long nOrigHeight = pBody->GetFont().GetFontSize().Height();
pBody->Arrange(rDev, rFormat);
const SmRect &rBodyRect = pBody->GetRect();
SmRect::operator = (rBodyRect);
// line that separates sub- and supscript rectangles
tools::Long nDelimLine = SmFromTo(GetAlignB(), GetAlignT(), 0.4);
Point aPos;
tools::Long nDelta, nDist;
// iterate over all possible sub-/supscripts
SmRect aTmpRect (rBodyRect);
for (int i = 0; i < SUBSUP_NUM_ENTRIES; i++)
{
SmSubSup eSubSup = static_cast<SmSubSup>(i);
SmNode *pSubSup = GetSubSup(eSubSup);
if (!pSubSup)
continue;
// switch position of limits if we are in textmode
if (rFormat.IsTextmode() && (GetToken().nGroup & TG::Limit))
switch (eSubSup)
{ case CSUB: eSubSup = RSUB; break;
case CSUP: eSubSup = RSUP; break;
default:
break;
}
// prevent sub-/supscripts from diminishing in size
// (as would be in "a_{1_{2_{3_4}}}")
if (GetFont().GetFontSize().Height() > rFormat.GetBaseSize().Height() / 3)
{
sal_uInt16 nIndex = (eSubSup == CSUB || eSubSup == CSUP) ?
SIZ_LIMITS : SIZ_INDEX;
Fraction aFraction ( rFormat.GetRelSize(nIndex), 100 );
pSubSup->SetSize(aFraction);
}
pSubSup->Arrange(rDev, rFormat);
bool bIsTextmode = rFormat.IsTextmode();
nDist = 0;
//! be sure that CSUB, CSUP are handled before the other cases!
switch (eSubSup)
{ case RSUB :
case LSUB :
if (!bIsTextmode)
nDist = nOrigHeight
* rFormat.GetDistance(DIS_SUBSCRIPT) / 100;
aPos = pSubSup->GetRect().AlignTo(aTmpRect,
eSubSup == LSUB ? RectPos::Left : RectPos::Right,
RectHorAlign::Center, RectVerAlign::Bottom);
aPos.AdjustY(nDist );
nDelta = nDelimLine - aPos.Y();
if (nDelta > 0)
aPos.AdjustY(nDelta );
break;
case RSUP :
case LSUP :
if (!bIsTextmode)
nDist = nOrigHeight
* rFormat.GetDistance(DIS_SUPERSCRIPT) / 100;
aPos = pSubSup->GetRect().AlignTo(aTmpRect,
eSubSup == LSUP ? RectPos::Left : RectPos::Right,
RectHorAlign::Center, RectVerAlign::Top);
aPos.AdjustY( -nDist );
nDelta = aPos.Y() + pSubSup->GetHeight() - nDelimLine;
if (nDelta > 0)
aPos.AdjustY( -nDelta );
break;
case CSUB :
if (!bIsTextmode)
nDist = nOrigHeight
* rFormat.GetDistance(DIS_LOWERLIMIT) / 100;
aPos = pSubSup->GetRect().AlignTo(rBodyRect, RectPos::Bottom,
RectHorAlign::Center, RectVerAlign::Baseline);
aPos.AdjustY(nDist );
break;
case CSUP :
if (!bIsTextmode)
nDist = nOrigHeight
* rFormat.GetDistance(DIS_UPPERLIMIT) / 100;
aPos = pSubSup->GetRect().AlignTo(rBodyRect, RectPos::Top,
RectHorAlign::Center, RectVerAlign::Baseline);
aPos.AdjustY( -nDist );
break;
}
pSubSup->MoveTo(aPos);
ExtendBy(*pSubSup, RectCopyMBL::This, true);
// update rectangle to which RSUB, RSUP, LSUB, LSUP
// will be aligned to
if (eSubSup == CSUB || eSubSup == CSUP)
aTmpRect = *this;
}
}
/**************************************************************************/
void SmBraceNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
{
SmNode *pLeft = OpeningBrace(),
*pBody = Body(),
*pRight = ClosingBrace();
assert(pLeft);
assert(pBody);
assert(pRight);
pBody->Arrange(rDev, rFormat);
bool bIsScaleNormal = rFormat.IsScaleNormalBrackets(),
bScale = pBody->GetHeight() > 0 &&
(GetScaleMode() == SmScaleMode::Height || bIsScaleNormal),
bIsABS = GetToken().eType == TABS;
tools::Long nFaceHeight = GetFont().GetFontSize().Height();
// determine oversize in %
sal_uInt16 nPerc = 0;
if (!bIsABS && bScale)
{ // in case of oversize braces...
sal_uInt16 nIndex = GetScaleMode() == SmScaleMode::Height ?
DIS_BRACKETSIZE : DIS_NORMALBRACKETSIZE;
nPerc = rFormat.GetDistance(nIndex);
}
// determine the height for the braces
tools::Long nBraceHeight;
if (bScale)
{
nBraceHeight = pBody->GetType() == SmNodeType::Bracebody ?
static_cast<SmBracebodyNode *>(pBody)->GetBodyHeight()
: pBody->GetHeight();
nBraceHeight += 2 * (nBraceHeight * nPerc / 100);
}
else
nBraceHeight = nFaceHeight;
// distance to the argument
nPerc = bIsABS ? 0 : rFormat.GetDistance(DIS_BRACKETSPACE);
tools::Long nDist = nFaceHeight * nPerc / 100;
// if wanted, scale the braces to the wanted size
if (bScale)
{
Size aTmpSize (pLeft->GetFont().GetFontSize());
OSL_ENSURE(pRight->GetFont().GetFontSize() == aTmpSize,
"Sm : different font sizes");
aTmpSize.setWidth( std::min(nBraceHeight * 60 / 100,
rFormat.GetBaseSize().Height() * 3 / 2) );
// correction factor since change from StarMath to OpenSymbol font
// because of the different font width in the FontMetric
aTmpSize.setWidth( aTmpSize.Width() * 182 );
aTmpSize.setWidth( aTmpSize.Width() / 267 );
sal_Unicode cChar = pLeft->GetToken().cMathChar[0];
if (cChar != MS_LINE && cChar != MS_DLINE &&
cChar != MS_VERTLINE && cChar != MS_DVERTLINE)
pLeft ->GetFont().SetSize(aTmpSize);
cChar = pRight->GetToken().cMathChar[0];
if (cChar != MS_LINE && cChar != MS_DLINE &&
cChar != MS_VERTLINE && cChar != MS_DVERTLINE)
pRight->GetFont().SetSize(aTmpSize);
pLeft ->AdaptToY(rDev, nBraceHeight);
pRight->AdaptToY(rDev, nBraceHeight);
}
pLeft ->Arrange(rDev, rFormat);
pRight->Arrange(rDev, rFormat);
// required in order to make "\(a\) - (a) - left ( a right )" look alright
RectVerAlign eVerAlign = bScale ? RectVerAlign::CenterY : RectVerAlign::Baseline;
Point aPos;
aPos = pLeft->AlignTo(*pBody, RectPos::Left, RectHorAlign::Center, eVerAlign);
aPos.AdjustX( -nDist );
pLeft->MoveTo(aPos);
aPos = pRight->AlignTo(*pBody, RectPos::Right, RectHorAlign::Center, eVerAlign);
aPos.AdjustX(nDist );
pRight->MoveTo(aPos);
SmRect::operator = (*pBody);
ExtendBy(*pLeft, RectCopyMBL::This).ExtendBy(*pRight, RectCopyMBL::This);
}
/**************************************************************************/
void SmBracebodyNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
{
size_t nNumSubNodes = GetNumSubNodes();
if (nNumSubNodes == 0)
return;
// arrange arguments
for (size_t i = 0; i < nNumSubNodes; i += 2)
GetSubNode(i)->Arrange(rDev, rFormat);
// build reference rectangle with necessary info for vertical alignment
SmRect aRefRect (*GetSubNode(0));
for (size_t i = 0; i < nNumSubNodes; i += 2)
{
SmRect aTmpRect (*GetSubNode(i));
Point aPos = aTmpRect.AlignTo(aRefRect, RectPos::Right, RectHorAlign::Center, RectVerAlign::Baseline);
aTmpRect.MoveTo(aPos);
aRefRect.ExtendBy(aTmpRect, RectCopyMBL::Xor);
}
mnBodyHeight = aRefRect.GetHeight();
// scale separators to required height and arrange them
bool bScale = GetScaleMode() == SmScaleMode::Height || rFormat.IsScaleNormalBrackets();
tools::Long nHeight = bScale ? aRefRect.GetHeight() : GetFont().GetFontSize().Height();
sal_uInt16 nIndex = GetScaleMode() == SmScaleMode::Height ?
DIS_BRACKETSIZE : DIS_NORMALBRACKETSIZE;
sal_uInt16 nPerc = rFormat.GetDistance(nIndex);
if (bScale)
nHeight += 2 * (nHeight * nPerc / 100);
for (size_t i = 1; i < nNumSubNodes; i += 2)
{
SmNode *pNode = GetSubNode(i);
pNode->AdaptToY(rDev, nHeight);
pNode->Arrange(rDev, rFormat);
}
// horizontal distance between argument and brackets or separators
tools::Long nDist = GetFont().GetFontSize().Height()
* rFormat.GetDistance(DIS_BRACKETSPACE) / 100;
SmNode *pLeft = GetSubNode(0);
SmRect::operator = (*pLeft);
for (size_t i = 1; i < nNumSubNodes; ++i)
{
bool bIsSeparator = i % 2 != 0;
RectVerAlign eVerAlign = bIsSeparator ? RectVerAlign::CenterY : RectVerAlign::Baseline;
SmNode *pRight = GetSubNode(i);
Point aPosX = pRight->AlignTo(*pLeft, RectPos::Right, RectHorAlign::Center, eVerAlign),
aPosY = pRight->AlignTo(aRefRect, RectPos::Right, RectHorAlign::Center, eVerAlign);
aPosX.AdjustX(nDist );
pRight->MoveTo(Point(aPosX.X(), aPosY.Y()));
ExtendBy(*pRight, bIsSeparator ? RectCopyMBL::This : RectCopyMBL::Xor);
pLeft = pRight;
}
}
/**************************************************************************/
void SmVerticalBraceNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
{
SmNode *pBody = Body(),
*pBrace = Brace(),
*pScript = Script();
assert(pBody);
assert(pBrace);
assert(pScript);
SmTmpDevice aTmpDev (rDev, true);
aTmpDev.SetFont(GetFont());
pBody->Arrange(aTmpDev, rFormat);
// size is the same as for limits for this part
pScript->SetSize( Fraction( rFormat.GetRelSize(SIZ_LIMITS), 100 ) );
// braces are a bit taller than usually
pBrace ->SetSize( Fraction(3, 2) );
tools::Long nItalicWidth = pBody->GetItalicWidth();
if (nItalicWidth > 0)
pBrace->AdaptToX(aTmpDev, nItalicWidth);
pBrace ->Arrange(aTmpDev, rFormat);
pScript->Arrange(aTmpDev, rFormat);
// determine the relative position and the distances between each other
RectPos eRectPos;
tools::Long nFontHeight = pBody->GetFont().GetFontSize().Height();
tools::Long nDistBody = nFontHeight * rFormat.GetDistance(DIS_ORNAMENTSIZE),
nDistScript = nFontHeight;
if (GetToken().eType == TOVERBRACE)
{
eRectPos = RectPos::Top;
nDistBody = - nDistBody;
nDistScript *= - rFormat.GetDistance(DIS_UPPERLIMIT);
}
else // TUNDERBRACE
{
eRectPos = RectPos::Bottom;
nDistScript *= + rFormat.GetDistance(DIS_LOWERLIMIT);
}
nDistBody /= 100;
nDistScript /= 100;
Point aPos = pBrace->AlignTo(*pBody, eRectPos, RectHorAlign::Center, RectVerAlign::Baseline);
aPos.AdjustY(nDistBody );
pBrace->MoveTo(aPos);
aPos = pScript->AlignTo(*pBrace, eRectPos, RectHorAlign::Center, RectVerAlign::Baseline);
aPos.AdjustY(nDistScript );
pScript->MoveTo(aPos);
SmRect::operator = (*pBody);
ExtendBy(*pBrace, RectCopyMBL::This).ExtendBy(*pScript, RectCopyMBL::This);
}
/**************************************************************************/
SmNode * SmOperNode::GetSymbol()
{
SmNode *pNode = GetSubNode(0);
assert(pNode);
if (pNode->GetType() == SmNodeType::SubSup)
pNode = static_cast<SmSubSupNode *>(pNode)->GetBody();
OSL_ENSURE(pNode, "Sm: NULL pointer!");
return pNode;
}
tools::Long SmOperNode::CalcSymbolHeight(const SmNode &rSymbol,
const SmFormat &rFormat) const
// returns the font height to be used for operator-symbol
{
tools::Long nHeight = GetFont().GetFontSize().Height();
SmTokenType eTmpType = GetToken().eType;
if (eTmpType == TLIM || eTmpType == TLIMINF || eTmpType == TLIMSUP)
return nHeight;
if (!rFormat.IsTextmode())
{
// set minimum size ()
nHeight += (nHeight * 20) / 100;
nHeight += nHeight
* rFormat.GetDistance(DIS_OPERATORSIZE) / 100;
nHeight = nHeight * 686 / 845;
}
// correct user-defined symbols to match height of sum from used font
if (rSymbol.GetToken().eType == TSPECIAL)
nHeight = nHeight * 845 / 686;
return nHeight;
}
void SmOperNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
{
SmNode *pOper = GetSubNode(0);
SmNode *pBody = GetSubNode(1);
assert(pOper);
assert(pBody);
SmNode *pSymbol = GetSymbol();
pSymbol->SetSize(Fraction(CalcSymbolHeight(*pSymbol, rFormat),
pSymbol->GetFont().GetFontSize().Height()));
pBody->Arrange(rDev, rFormat);
bool bDynamicallySized = false;
if (pSymbol->GetToken().eType == TINTD)
{
tools::Long nBodyHeight = pBody->GetHeight();
tools::Long nFontHeight = pSymbol->GetFont().GetFontSize().Height();
if (nFontHeight < nBodyHeight)
{
pSymbol->SetSize(Fraction(nBodyHeight, nFontHeight));
bDynamicallySized = true;
}
}
pOper->Arrange(rDev, rFormat);
tools::Long nOrigHeight = GetFont().GetFontSize().Height(),
nDist = nOrigHeight
* rFormat.GetDistance(DIS_OPERATORSPACE) / 100;
Point aPos = pOper->AlignTo(*pBody, RectPos::Left, RectHorAlign::Center, bDynamicallySized ? RectVerAlign::CenterY : RectVerAlign::Mid);
aPos.AdjustX( -nDist );
pOper->MoveTo(aPos);
SmRect::operator = (*pBody);
ExtendBy(*pOper, RectCopyMBL::This);
}
/**************************************************************************/
void SmAlignNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
// set alignment within the entire subtree (including current node)
{
assert(GetNumSubNodes() == 1);
SmNode *pNode = GetSubNode(0);
assert(pNode);
RectHorAlign eHorAlign = RectHorAlign::Center;
switch (GetToken().eType)
{
case TALIGNL: eHorAlign = RectHorAlign::Left; break;
case TALIGNC: eHorAlign = RectHorAlign::Center; break;
case TALIGNR: eHorAlign = RectHorAlign::Right; break;
default:
break;
}
SetRectHorAlign(eHorAlign);
pNode->Arrange(rDev, rFormat);
SmRect::operator = (pNode->GetRect());
}
/**************************************************************************/
void SmAttributeNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
{
SmNode *pAttr = Attribute(),
*pBody = Body();
assert(pBody);
assert(pAttr);
pBody->Arrange(rDev, rFormat);
if (GetScaleMode() == SmScaleMode::Width)
pAttr->AdaptToX(rDev, pBody->GetItalicWidth());
pAttr->Arrange(rDev, rFormat);
// get relative position of attribute
RectVerAlign eVerAlign;
tools::Long nDist = 0;
switch (GetToken().eType)
{ case TUNDERLINE :
eVerAlign = RectVerAlign::AttributeLo;
break;
case TOVERSTRIKE :
eVerAlign = RectVerAlign::AttributeMid;
break;
default :
eVerAlign = RectVerAlign::AttributeHi;
if (pBody->GetType() == SmNodeType::Attribute)
nDist = GetFont().GetFontSize().Height()
* rFormat.GetDistance(DIS_ORNAMENTSPACE) / 100;
}
Point aPos = pAttr->AlignTo(*pBody, RectPos::Attribute, RectHorAlign::Center, eVerAlign);
aPos.AdjustY( -nDist );
pAttr->MoveTo(aPos);
SmRect::operator = (*pBody);
ExtendBy(*pAttr, RectCopyMBL::This, true);
}
void SmFontNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell, int nDepth)
{
//! prepare subnodes first
SmNode::Prepare(rFormat, rDocShell, nDepth);
int nFnt = -1;
switch (GetToken().eType)
{
case TFIXED: nFnt = FNT_FIXED; break;
case TSANS: nFnt = FNT_SANS; break;
case TSERIF: nFnt = FNT_SERIF; break;
default:
break;
}
if (nFnt != -1)
{ GetFont() = rFormat.GetFont( sal::static_int_cast< sal_uInt16 >(nFnt) );
SetFont(GetFont());
}
//! prevent overwrites of this font by 'Arrange' or 'SetFont' calls of
//! other font nodes (those with lower depth in the tree)
Flags() |= FontChangeMask::Face;
}
void SmFontNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
{
SmNode *pNode = GetSubNode(1);
assert(pNode);
sal_uInt32 nc;
switch (GetToken().eType)
{ case TSIZE :
pNode->SetFontSize(maFontSize, meSizeType);
break;
case TSANS :
case TSERIF :
case TFIXED :
pNode->SetFont(GetFont());
break;
case TUNKNOWN : break; // no assertion on "font <?> <?>"
case TPHANTOM : SetPhantom(true); break;
case TBOLD : SetAttribute(FontAttribute::Bold); break;
case TITALIC : SetAttribute(FontAttribute::Italic); break;
case TNBOLD : ClearAttribute(FontAttribute::Bold); break;
case TNITALIC : ClearAttribute(FontAttribute::Italic); break;
// Using HTML CSS Level 1 standard
case TRGB :
case TRGBA :
case THTMLCOL :
case TMATHMLCOL :
case TDVIPSNAMESCOL:
case TICONICCOL :
case THEX :
nc = GetToken().cMathChar.toUInt32(16);
SetColor(Color(ColorTransparency, nc));
break;
default:
SAL_WARN("starmath", "unknown case");
}
pNode->Arrange(rDev, rFormat);
SmRect::operator = (pNode->GetRect());
}
/**************************************************************************/
SmPolyLineNode::SmPolyLineNode(const SmToken &rNodeToken)
: SmGraphicNode(SmNodeType::PolyLine, rNodeToken)
, maPoly(2)
, mnWidth(0)
{
}
void SmPolyLineNode::AdaptToX(OutputDevice &/*rDev*/, tools::Long nNewWidth)
{
maToSize.setWidth( nNewWidth );
}
void SmPolyLineNode::AdaptToY(OutputDevice &/*rDev*/, tools::Long nNewHeight)
{
GetFont().FreezeBorderWidth();
maToSize.setHeight( nNewHeight );
}
void SmPolyLineNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
{
//! some routines being called extract some info from the OutputDevice's
//! font (eg the space to be used for borders OR the font name(!!)).
//! Thus the font should reflect the needs and has to be set!
SmTmpDevice aTmpDev (rDev, true);
aTmpDev.SetFont(GetFont());
tools::Long nBorderwidth = GetFont().GetBorderWidth();
// create polygon using both endpoints
assert(maPoly.GetSize() == 2);
Point aPointA, aPointB;
if (GetToken().eType == TWIDESLASH)
{
aPointA.setX( nBorderwidth );
aPointA.setY( maToSize.Height() - nBorderwidth );
aPointB.setX( maToSize.Width() - nBorderwidth );
aPointB.setY( nBorderwidth );
}
else
{
OSL_ENSURE(GetToken().eType == TWIDEBACKSLASH, "Sm : unexpected token");
aPointA.setX( nBorderwidth );
aPointA.setY( nBorderwidth );
aPointB.setX( maToSize.Width() - nBorderwidth );
aPointB.setY( maToSize.Height() - nBorderwidth );
}
maPoly.SetPoint(aPointA, 0);
maPoly.SetPoint(aPointB, 1);
tools::Long nThick = GetFont().GetFontSize().Height()
* rFormat.GetDistance(DIS_STROKEWIDTH) / 100;
mnWidth = nThick + 2 * nBorderwidth;
SmRect::operator = (SmRect(maToSize.Width(), maToSize.Height()));
}
/**************************************************************************/
void SmRootSymbolNode::AdaptToX(OutputDevice &/*rDev*/, tools::Long nWidth)
{
mnBodyWidth = nWidth;
}
void SmRootSymbolNode::AdaptToY(OutputDevice &rDev, tools::Long nHeight)
{
// some additional length so that the horizontal
// bar will be positioned above the argument
SmMathSymbolNode::AdaptToY(rDev, nHeight + nHeight / 10);
}
/**************************************************************************/
void SmRectangleNode::AdaptToX(OutputDevice &/*rDev*/, tools::Long nWidth)
{
maToSize.setWidth( nWidth );
}
void SmRectangleNode::AdaptToY(OutputDevice &/*rDev*/, tools::Long nHeight)
{
GetFont().FreezeBorderWidth();
maToSize.setHeight( nHeight );
}
void SmRectangleNode::Arrange(OutputDevice &rDev, const SmFormat &/*rFormat*/)
{
tools::Long nFontHeight = GetFont().GetFontSize().Height();
tools::Long nWidth = maToSize.Width(),
nHeight = maToSize.Height();
if (nHeight == 0)
nHeight = nFontHeight / 30;
if (nWidth == 0)
nWidth = nFontHeight / 3;
SmTmpDevice aTmpDev (rDev, true);
aTmpDev.SetFont(GetFont());
// add some borderspace
tools::Long nTmpBorderWidth = GetFont().GetBorderWidth();
nHeight += 2 * nTmpBorderWidth;
//! use this method in order to have 'SmRect::HasAlignInfo() == true'
//! and thus having the attribute-fences updated in 'SmRect::ExtendBy'
SmRect::operator = (SmRect(nWidth, nHeight));
}
/**************************************************************************/
SmTextNode::SmTextNode( SmNodeType eNodeType, const SmToken &rNodeToken, sal_uInt16 nFontDescP )
: SmVisibleNode(eNodeType, rNodeToken)
, mnFontDesc(nFontDescP)
, mnSelectionStart(0)
, mnSelectionEnd(0)
{
}
SmTextNode::SmTextNode( const SmToken &rNodeToken, sal_uInt16 nFontDescP )
: SmVisibleNode(SmNodeType::Text, rNodeToken)
, mnFontDesc(nFontDescP)
, mnSelectionStart(0)
, mnSelectionEnd(0)
{
}
void SmTextNode::ChangeText(const OUString &rText) {
maText = rText;
GetToken().aText = rText;
AdjustFontDesc();
}
void SmTextNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell, int nDepth)
{
SmNode::Prepare(rFormat, rDocShell, nDepth);
// default setting for horizontal alignment of nodes with TTEXT
// content is as alignl (cannot be done in Arrange since it would
// override the settings made by an SmAlignNode before)
if (TTEXT == GetToken().eType)
SetRectHorAlign( RectHorAlign::Left );
maText = GetToken().aText;
GetFont() = rFormat.GetFont(GetFontDesc());
if (IsItalic( GetFont() ))
Attributes() |= FontAttribute::Italic;
if (IsBold( GetFont() ))
Attributes() |= FontAttribute::Bold;
// special handling for ':' where it is a token on its own and is likely
// to be used for mathematical notations. (E.g. a:b = 2:3)
// In that case it should not be displayed in italic.
if (maText.getLength() == 1 && GetToken().aText[0] == ':')
Attributes() &= ~FontAttribute::Italic;
// Arabic text should not be italic, so we check for any character in Arabic script and
// remove italic attribute.
if (!maText.isEmpty())
{
sal_Int32 nIndex = 0;
while (nIndex < maText.getLength())
{
sal_uInt32 cChar = maText.iterateCodePoints(&nIndex);
if (u_getIntPropertyValue(cChar, UCHAR_SCRIPT) == USCRIPT_ARABIC)
{
Attributes() &= ~FontAttribute::Italic;
break;
}
}
}
};
void SmTextNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
{
PrepareAttributes();
sal_uInt16 nSizeDesc = GetFontDesc() == FNT_FUNCTION ?
SIZ_FUNCTION : SIZ_TEXT;
GetFont() *= Fraction (rFormat.GetRelSize(nSizeDesc), 100);
SmTmpDevice aTmpDev (rDev, true);
aTmpDev.SetFont(GetFont());
SmRect::operator = (SmRect(aTmpDev, &rFormat, maText, GetFont().GetBorderWidth()));
}
void SmTextNode::GetAccessibleText( OUStringBuffer &rText ) const
{
rText.append(maText);
}
void SmTextNode::AdjustFontDesc()
{
if (GetToken().nGroup == TG::Function) mnFontDesc = FNT_FUNCTION;
else if (GetToken().eType == TTEXT) mnFontDesc = FNT_TEXT;
else {
sal_Unicode firstChar = maText[0];
if( ('0' <= firstChar && firstChar <= '9') || firstChar == '.' || firstChar == ',')
mnFontDesc = FNT_NUMBER;
else mnFontDesc = FNT_VARIABLE;
}
}
sal_Unicode SmTextNode::ConvertSymbolToUnicode(sal_Unicode nIn)
{
//Find the best match in accepted unicode for our private area symbols
static const sal_Unicode aStarMathPrivateToUnicode[] =
{
0x2030, 0xF613, 0xF612, 0x002B, 0x003C, 0x003E, 0xE425, 0xE421, 0xE088, 0x2208,
0x0192, 0x2026, 0x2192, 0x221A, 0x221A, 0x221A, 0xE090, 0x005E, 0x02C7, 0x02D8,
0x00B4, 0x0060, 0x02DC, 0x00AF, 0x0362, 0xE099, 0xE09A, 0x20DB, 0xE09C, 0xE09D,
0x0028, 0x0029, 0x2220, 0x22AF, 0xE0A2, 0xE0A3, 0xE0A4, 0xE0A5, 0xE0A6, 0xE0A7,
0x002F, 0x005C, 0x274F, 0xE0AB, 0x0393, 0x0394, 0x0398, 0x039b, 0x039e, 0x03A0,
0x03a3, 0x03a5, 0x03a6, 0x03a8, 0x03A9, 0x03B1, 0x03B2, 0x03b3, 0x03b4, 0x03b5,
0x03b6, 0x03b7, 0x03b8, 0x03b9, 0x03ba, 0x03bb, 0x03bc, 0x03bd, 0x03be, 0x03bf,
0x03c0, 0x03c1, 0x03c3, 0x03c4, 0x03c5, 0x03c6, 0x03c7, 0x03c8, 0x03c9, 0x03b5,
0x03d1, 0x03d6, 0xE0D2, 0x03db, 0x2118, 0x2202, 0x2129, 0xE0D7, 0xE0D8, 0x22A4,
0xE0DA, 0x2190, 0x2191, 0x2193
};
if ((nIn >= 0xE080) && (nIn <= 0xE0DD))
nIn = aStarMathPrivateToUnicode[nIn-0xE080];
//For whatever unicode glyph that equation editor doesn't ship with that
//we have a possible match we can munge it to.
switch (nIn)
{
case 0x2223:
nIn = '|';
break;
default:
break;
}
return nIn;
}
/**************************************************************************/
void SmMatrixNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
{
SmNode *pNode;
// initialize array that is to hold the maximum widths of all
// elements (subnodes) in that column.
std::vector<tools::Long> aColWidth(mnNumCols);
// arrange subnodes and calculate the above arrays contents
size_t nNodes = GetNumSubNodes();
for (size_t i = 0; i < nNodes; ++i)
{
size_t nIdx = nNodes - 1 - i;
if (nullptr != (pNode = GetSubNode(nIdx)))
{
pNode->Arrange(rDev, rFormat);
int nCol = nIdx % mnNumCols;
aColWidth[nCol] = std::max(aColWidth[nCol], pNode->GetItalicWidth());
}
}
// norm distance from which the following two are calculated
const tools::Long nNormDist = 3 * GetFont().GetFontSize().Height();
// define horizontal and vertical minimal distances that separate
// the elements
tools::Long nHorDist = nNormDist * rFormat.GetDistance(DIS_MATRIXCOL) / 100,
nVerDist = nNormDist * rFormat.GetDistance(DIS_MATRIXROW) / 100;
// build array that holds the leftmost position for each column
std::vector<tools::Long> aColLeft(mnNumCols);
tools::Long nX = 0;
for (size_t j = 0; j < mnNumCols; ++j)
{
aColLeft[j] = nX;
nX += aColWidth[j] + nHorDist;
}
SmRect::operator = (SmRect());
for (size_t i = 0; i < mnNumRows; ++i)
{
Point aPos;
SmRect aLineRect;
for (size_t j = 0; j < mnNumCols; ++j)
{
SmNode *pTmpNode = GetSubNode(i * mnNumCols + j);
assert(pTmpNode);
const SmRect &rNodeRect = pTmpNode->GetRect();
// align all baselines in that row if possible
aPos = rNodeRect.AlignTo(aLineRect, RectPos::Right, RectHorAlign::Center, RectVerAlign::Baseline);
// get horizontal alignment
const SmNode *pCoNode = pTmpNode->GetLeftMost();
RectHorAlign eHorAlign = pCoNode->GetRectHorAlign();
// calculate horizontal position of element depending on column
// and horizontal alignment
switch (eHorAlign)
{ case RectHorAlign::Left:
aPos.setX( aColLeft[j] );
break;
case RectHorAlign::Center:
aPos.setX( rNodeRect.GetLeft() + aColLeft[j]
+ aColWidth[j] / 2
- rNodeRect.GetItalicCenterX() );
break;
case RectHorAlign::Right:
aPos.setX( aColLeft[j]
+ aColWidth[j] - rNodeRect.GetItalicWidth() );
break;
default:
assert(false);
}
pTmpNode->MoveTo(aPos);
aLineRect.ExtendBy(rNodeRect, RectCopyMBL::Xor);
}
aPos = aLineRect.AlignTo(*this, RectPos::Bottom, RectHorAlign::Center, RectVerAlign::Baseline);
if (i > 0)
aPos.AdjustY(nVerDist );
// move 'aLineRect' and rectangles in that line to final position
Point aDelta(0, // since horizontal alignment is already done
aPos.Y() - aLineRect.GetTop());
aLineRect.Move(aDelta);
for (size_t j = 0; j < mnNumCols; ++j)
{
if (nullptr != (pNode = GetSubNode(i * mnNumCols + j)))
pNode->Move(aDelta);
}
ExtendBy(aLineRect, RectCopyMBL::None);
}
}
const SmNode * SmMatrixNode::GetLeftMost() const
{
return this;
}
/**************************************************************************/
SmMathSymbolNode::SmMathSymbolNode(const SmToken &rNodeToken)
: SmSpecialNode(SmNodeType::Math, rNodeToken, FNT_MATH)
{
SetText(GetToken().cMathChar);
}
void SmMathSymbolNode::AdaptToX(OutputDevice &rDev, tools::Long nWidth)
{
// Since there is no function to do this, we try to approximate it:
Size aFntSize (GetFont().GetFontSize());
//! however the result is a bit better with 'nWidth' as initial font width
aFntSize.setWidth( nWidth );
GetFont().SetSize(aFntSize);
SmTmpDevice aTmpDev (rDev, true);
aTmpDev.SetFont(GetFont());
// get denominator of error factor for width
tools::Long nTmpBorderWidth = GetFont().GetBorderWidth();
tools::Long nDenom = SmRect(aTmpDev, nullptr, GetText(), nTmpBorderWidth).GetItalicWidth();
// scale fontwidth with this error factor
aFntSize.setWidth( aFntSize.Width() * nWidth );
aFntSize.setWidth( aFntSize.Width() / ( nDenom ? nDenom : 1) );
GetFont().SetSize(aFntSize);
}
void SmMathSymbolNode::AdaptToY(OutputDevice &rDev, tools::Long nHeight)
{
GetFont().FreezeBorderWidth();
Size aFntSize (GetFont().GetFontSize());
// Since we only want to scale the height, we might have
// to determine the font width in order to keep it
if (aFntSize.Width() == 0)
{
rDev.Push(vcl::PushFlags::FONT | vcl::PushFlags::MAPMODE);
rDev.SetFont(GetFont());
aFntSize.setWidth( rDev.GetFontMetric().GetFontSize().Width() );
rDev.Pop();
}
OSL_ENSURE(aFntSize.Width() != 0, "Sm: ");
//! however the result is a bit better with 'nHeight' as initial
//! font height
aFntSize.setHeight( nHeight );
GetFont().SetSize(aFntSize);
SmTmpDevice aTmpDev (rDev, true);
aTmpDev.SetFont(GetFont());
// get denominator of error factor for height
tools::Long nTmpBorderWidth = GetFont().GetBorderWidth();
tools::Long nDenom = 0;
if (!GetText().isEmpty())
nDenom = SmRect(aTmpDev, nullptr, GetText(), nTmpBorderWidth).GetHeight();
// scale fontwidth with this error factor
aFntSize.setHeight( aFntSize.Height() * nHeight );
aFntSize.setHeight( aFntSize.Height() / ( nDenom ? nDenom : 1) );
GetFont().SetSize(aFntSize);
}
void SmMathSymbolNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell, int nDepth)
{
SmNode::Prepare(rFormat, rDocShell, nDepth);
GetFont() = rFormat.GetFont(GetFontDesc());
// use same font size as is used for variables
GetFont().SetSize( rFormat.GetFont( FNT_VARIABLE ).GetFontSize() );
OSL_ENSURE(GetFont().GetCharSet() == RTL_TEXTENCODING_SYMBOL ||
GetFont().GetCharSet() == RTL_TEXTENCODING_UNICODE,
"wrong charset for character from StarMath/OpenSymbol font");
Flags() |= FontChangeMask::Face | FontChangeMask::Italic;
};
void SmMathSymbolNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
{
const OUString &rText = GetText();
if (rText.isEmpty() || rText[0] == '\0')
{ SmRect::operator = (SmRect());
return;
}
PrepareAttributes();
GetFont() *= Fraction (rFormat.GetRelSize(SIZ_TEXT), 100);
SmTmpDevice aTmpDev (rDev, true);
aTmpDev.SetFont(GetFont());
SmRect::operator = (SmRect(aTmpDev, &rFormat, rText, GetFont().GetBorderWidth()));
}
/**************************************************************************/
SmSpecialNode::SmSpecialNode(SmNodeType eNodeType, const SmToken &rNodeToken, sal_uInt16 _nFontDesc)
: SmTextNode(eNodeType, rNodeToken, _nFontDesc)
{
}
SmSpecialNode::SmSpecialNode(const SmToken &rNodeToken)
: SmTextNode(SmNodeType::Special, rNodeToken, FNT_VARIABLE) // default Font isn't always correct!
{
}
void SmSpecialNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell, int nDepth)
{
SmNode::Prepare(rFormat, rDocShell, nDepth);
const SmSym* pSym
= GetToken().aText.isEmpty()
? nullptr
: SmModule::get()->GetSymbolManager().GetSymbolByName(GetToken().aText.subView(1));
bool bIsGreekSymbol = false;
bool bIsSpecialSymbol = false;
bool bIsArabic = false;
if (pSym)
{
sal_UCS4 cChar = pSym->GetCharacter();
OUString aTmp( &cChar, 1 );
SetText( aTmp );
GetFont() = SmFace(pSym->GetFace(&rFormat));
OUString aSymbolSetName = SmLocalizedSymbolData::GetExportSymbolSetName(pSym->GetSymbolSetName());
if (aSymbolSetName == "Greek")
bIsGreekSymbol = true;
else if (aSymbolSetName == "Special")
bIsSpecialSymbol = true;
else if (aSymbolSetName == "Arabic")
bIsArabic = true;
}
else
{
SetText( GetToken().aText );
GetFont() = rFormat.GetFont(FNT_VARIABLE);
}
// use same font size as is used for variables
GetFont().SetSize( rFormat.GetFont( FNT_VARIABLE ).GetFontSize() );
// Actually only WEIGHT_NORMAL and WEIGHT_BOLD should occur... However, the sms-file also
// contains e.g. 'WEIGHT_ULTRALIGHT'. Consequently, compare here with '>' instead of '!='.
// (In the long term the necessity for 'PrepareAttribut' and thus also for this here should be dropped)
//! see also SmFontStyles::GetStyleName
if (IsItalic( GetFont() ))
SetAttribute(FontAttribute::Italic);
if (IsBold( GetFont() ))
SetAttribute(FontAttribute::Bold);
Flags() |= FontChangeMask::Face;
sal_uInt32 cChar = 0;
if (!GetText().isEmpty())
{
sal_Int32 nIndex = 0;
cChar = GetText().iterateCodePoints(&nIndex);
if (!bIsArabic)
bIsArabic = u_getIntPropertyValue(cChar, UCHAR_SCRIPT) == USCRIPT_ARABIC;
}
if (!bIsGreekSymbol && !bIsSpecialSymbol && !bIsArabic)
return;
// Arabic and special symbols should not be italic,
// Greek is italic only in some cases.
bool bItalic = false;
if (bIsGreekSymbol)
{
sal_Int16 nStyle = rFormat.GetGreekCharStyle();
OSL_ENSURE( nStyle >= 0 && nStyle <= 2, "unexpected value for GreekCharStyle" );
if (nStyle == 1)
bItalic = true;
else if (nStyle == 2)
{
static const sal_Unicode cUppercaseAlpha = 0x0391;
static const sal_Unicode cUppercaseOmega = 0x03A9;
// uppercase letters should be straight and lowercase letters italic
bItalic = cUppercaseAlpha > cChar || cChar > cUppercaseOmega;
}
}
if (bItalic)
Attributes() |= FontAttribute::Italic;
else
Attributes() &= ~FontAttribute::Italic;
};
void SmSpecialNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
{
PrepareAttributes();
SmTmpDevice aTmpDev (rDev, true);
aTmpDev.SetFont(GetFont());
SmRect::operator = (SmRect(aTmpDev, &rFormat, GetText(), GetFont().GetBorderWidth()));
}
/**************************************************************************/
void SmGlyphSpecialNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
{
PrepareAttributes();
SmTmpDevice aTmpDev (rDev, true);
aTmpDev.SetFont(GetFont());
SmRect::operator = (SmRect(aTmpDev, &rFormat, GetText(),
GetFont().GetBorderWidth()).AsGlyphRect());
}
/**************************************************************************/
void SmPlaceNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell, int nDepth)
{
SmNode::Prepare(rFormat, rDocShell, nDepth);
GetFont().SetColor(COL_GRAY);
Flags() |= FontChangeMask::Color | FontChangeMask::Face | FontChangeMask::Italic;
};
void SmPlaceNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
{
PrepareAttributes();
SmTmpDevice aTmpDev (rDev, true);
aTmpDev.SetFont(GetFont());
SmRect::operator = (SmRect(aTmpDev, &rFormat, GetText(), GetFont().GetBorderWidth()));
}
/**************************************************************************/
void SmErrorNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell, int nDepth)
{
SmNode::Prepare(rFormat, rDocShell, nDepth);
GetFont().SetColor(COL_RED);
Flags() |= FontChangeMask::Phantom | FontChangeMask::Bold | FontChangeMask::Italic
| FontChangeMask::Color | FontChangeMask::Face | FontChangeMask::Size;
}
void SmErrorNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
{
PrepareAttributes();
SmTmpDevice aTmpDev (rDev, true);
aTmpDev.SetFont(GetFont());
const OUString &rText = GetText();
SmRect::operator = (SmRect(aTmpDev, &rFormat, rText, GetFont().GetBorderWidth()));
}
/**************************************************************************/
void SmBlankNode::IncreaseBy(const SmToken &rToken, sal_uInt32 nMultiplyBy)
{
switch(rToken.eType)
{
case TBLANK: mnNum += (4 * nMultiplyBy); break;
case TSBLANK: mnNum += (1 * nMultiplyBy); break;
default:
break;
}
}
void SmBlankNode::Prepare(const SmFormat &rFormat, const SmDocShell &rDocShell, int nDepth)
{
SmNode::Prepare(rFormat, rDocShell, nDepth);
// Here it need/should not be the StarMath font, so that for the character
// used in Arrange a normal (non-clipped) rectangle is generated
GetFont() = rFormat.GetFont(FNT_VARIABLE);
Flags() |= FontChangeMask::Face | FontChangeMask::Bold | FontChangeMask::Italic;
}
void SmBlankNode::Arrange(OutputDevice &rDev, const SmFormat &rFormat)
{
SmTmpDevice aTmpDev (rDev, true);
aTmpDev.SetFont(GetFont());
// make distance depend on the font height
// (so that it increases when scaling (e.g. size *2 {a ~ b})
tools::Long nDist = GetFont().GetFontSize().Height() / 10,
nSpace = mnNum * nDist;
// get a SmRect with Baseline and all the bells and whistles
SmRect::operator = (SmRect(aTmpDev, &rFormat, OUString(' '),
GetFont().GetBorderWidth()));
// and resize it to the requested size
SetItalicSpaces(0, 0);
SetWidth(nSpace);
}
/**************************************************************************/
//Implementation of all accept methods for SmVisitor
void SmTableNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmBraceNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmBracebodyNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmOperNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmAlignNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmAttributeNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmFontNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmUnHorNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmBinHorNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmBinVerNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmBinDiagonalNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmSubSupNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmMatrixNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmPlaceNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmTextNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmSpecialNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmGlyphSpecialNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmMathSymbolNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmBlankNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmErrorNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmLineNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmExpressionNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmPolyLineNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmRootNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmRootSymbolNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmRectangleNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
void SmVerticalBraceNode::Accept(SmVisitor* pVisitor) {
pVisitor->Visit(this);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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