mirror of
https://git.lyx.org/repos/lyx.git
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2be247f6ef
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@1623 a592a061-630c-0410-9148-cb99ea01b6c8
171 lines
2.9 KiB
C
171 lines
2.9 KiB
C
#include <config.h>
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#ifdef __GNUG__
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#pragma implementation
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#endif
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#include "math_fracinset.h"
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#include "math_iter.h"
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#include "LColor.h"
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#include "Painter.h"
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#include "mathed/support.h"
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#include "support/LOstream.h"
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using std::ostream;
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MathFracInset::MathFracInset(short ot)
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: MathParInset(LM_ST_TEXT, "frac", ot)
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{
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den_ = new MathParInset(LM_ST_TEXT); // this leaks
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dh_ = 0;
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idx_ = 0;
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if (objtype == LM_OT_STACKREL) {
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flag |= LMPF_SCRIPT;
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SetName("stackrel");
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}
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}
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MathFracInset::~MathFracInset()
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{
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delete den_;
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}
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MathedInset * MathFracInset::Clone()
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{
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MathFracInset * p = new MathFracInset(*this);
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// this cast will go again...
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p->den_ = static_cast<MathParInset*>(p->den_->Clone());
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return p;
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}
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bool MathFracInset::setArgumentIdx(int i)
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{
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if (i == 0 || i == 1) {
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idx_ = i;
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return true;
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} else
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return false;
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}
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void MathFracInset::SetStyle(short st)
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{
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MathParInset::SetStyle(st);
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dh_ = 0;
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den_->SetStyle((size() == LM_ST_DISPLAY) ?
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static_cast<short>(LM_ST_TEXT)
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: size());
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}
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void MathFracInset::SetData(MathedArray const & n, MathedArray const & d)
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{
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den_->setData(d);
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MathParInset::setData(n);
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}
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void MathFracInset::setData(MathedArray const & d)
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{
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if (idx_ == 0)
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MathParInset::setData(d);
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else {
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den_->setData(d);
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}
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}
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void MathFracInset::GetXY(int & x, int & y) const
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{
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if (idx_ == 0)
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MathParInset::GetXY(x, y);
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else
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den_->GetXY(x, y);
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}
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MathedArray & MathFracInset::GetData()
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{
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if (idx_ == 0)
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return array;
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else
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return den_->GetData();
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}
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bool MathFracInset::Inside(int x, int y)
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{
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int const xx = xo() - (width - w0_) / 2;
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return x >= xx
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&& x <= xx + width
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&& y <= yo() + descent
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&& y >= yo() - ascent;
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}
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void MathFracInset::SetFocus(int /*x*/, int y)
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{
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// lyxerr << "y " << y << " " << yo << " " << den_->yo << " ";
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idx_ = (y > yo()) ? 1 : 0;
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}
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void
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MathFracInset::draw(Painter & pain, int x, int y)
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{
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int const idxp = idx_;
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int const sizex = size();
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idx_ = 0;
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if (size() == LM_ST_DISPLAY) incSize();
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MathParInset::draw(pain, x + (width - w0_) / 2, y - des0_);
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den_->draw(pain, x + (width - w1_) / 2, y + den_->Ascent() + 2 - dh_);
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size(sizex);
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if (objtype == LM_OT_FRAC)
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pain.line(x + 2, y - dh_,
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x + width - 4, y - dh_, LColor::mathline);
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idx_ = idxp;
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}
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void
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MathFracInset::Metrics()
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{
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if (!dh_) {
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int a;
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int b;
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dh_ = mathed_char_height(LM_TC_CONST, size(), 'I', a, b) / 2;
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}
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int const idxp = idx_;
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int const sizex = size();
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idx_ = 0;
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if (size() == LM_ST_DISPLAY) incSize();
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MathParInset::Metrics();
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size(sizex);
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w0_ = width;
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int const as = Height() + 2 + dh_;
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des0_ = Descent() + 2 + dh_;
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den_->Metrics();
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w1_ = den_->Width();
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width = ((w0_ > w1_) ? w0_: w1_) + 12;
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ascent = as;
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descent = den_->Height()+ 2 - dh_;
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idx_ = idxp;
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}
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void MathFracInset::Write(ostream & os, bool fragile)
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{
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os << '\\' << name << '{';
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MathParInset::Write(os, fragile);
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os << "}{";
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den_->Write(os, fragile);
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os << '}';
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}
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