Andreas' patch to prevent crash on click on previewd inset

[lyx.git] / src / mathed / math_sqrtinset.C

diff --git a/src/mathed/math_sqrtinset.C b/src/mathed/math_sqrtinset.C
index 25aa2e12ee50e06de6279b89bc0e20960999baee..4705ae78461cf74f8c202dc4f061c2f2a74d57ce 100644 (file)
--- a/src/mathed/math_sqrtinset.C
+++ b/src/mathed/math_sqrtinset.C
@@ -1,81 +1,109 @@
-#include <config.h>
+/**
+ * \file math_sqrtinset.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author André Pönitz
+ *
+ * Full author contact details are available in file CREDITS.
+ */
 
-#ifdef __GNUG__
-#pragma implementation
-#endif
+#include <config.h>
 
 #include "math_sqrtinset.h"
-#include "math_iter.h"
+#include "math_data.h"
+#include "math_mathmlstream.h"
+#include "textpainter.h"
 #include "LColor.h"
-#include "Painter.h"
-#include "support.h"
-#include "support/LOstream.h"
+#include "frontends/Painter.h"
 
-using std::ostream;
+using std::auto_ptr;
 
 
-MathSqrtInset::MathSqrtInset(short st)
-       : MathParInset(st, "sqrt", LM_OT_SQRT) {}
+MathSqrtInset::MathSqrtInset()
+       : MathNestInset(1)
+{}
 
 
-MathedInset * MathSqrtInset::Clone()
-{   
-       return new MathSqrtInset(*this);
+auto_ptr<InsetBase> MathSqrtInset::doClone() const
+{
+       return auto_ptr<InsetBase>(new MathSqrtInset(*this));
 }
 
 
-void MathSqrtInset::draw(Painter & pain, int x, int y)
-{ 
-       MathParInset::draw(pain, x + hmax_ + 2, y); 
-       int const h = ascent;
-       int const d = descent;
-       int const h2 = Height() / 2;
-       int const w2 = (Height() > 4 * hmax_) ? hmax_ : hmax_ / 2; 
+void MathSqrtInset::metrics(MetricsInfo & mi, Dimension & dim) const
+{
+       cell(0).metrics(mi, dim);
+       dim.asc += 4;
+       dim.des += 2;
+       dim.wid += 12;
+       metricsMarkers(dim);
+       dim_ = dim;
+}
+
+
+void MathSqrtInset::draw(PainterInfo & pi, int x, int y) const
+{
+       cell(0).draw(pi, x + 10, y);
+       int const a = dim_.ascent();
+       int const d = dim_.descent();
        int xp[4];
        int yp[4];
-       xp[0] = x + hmax_ + wbody_; yp[0] = y - h;
-       xp[1] = x + hmax_;          yp[1] = y - h;
-       xp[2] = x + w2;             yp[2] = y + d;
-       xp[3] = x;                  yp[3] = y + d - h2;
-       pain.lines(xp, yp, 4, LColor::mathline);
+       xp[0] = x + dim_.width(); yp[0] = y - a + 1;
+       xp[1] = x + 8;            yp[1] = y - a + 1;
+       xp[2] = x + 5;            yp[2] = y + d - 1;
+       xp[3] = x;                yp[3] = y + (d - a)/2;
+       pi.pain.lines(xp, yp, 4, LColor::math);
+       drawMarkers(pi, x, y);
+}
+
+
+void MathSqrtInset::metricsT(TextMetricsInfo const & mi, Dimension & dim) const
+{
+       cell(0).metricsT(mi, dim);
+       dim.asc += 1;
+       dim.wid += 2;
+}
+
+
+void MathSqrtInset::drawT(TextPainter & pain, int x, int y) const
+{
+       cell(0).drawT(pain, x + 2, y);
+       pain.horizontalLine(x + 2, y - cell(0).ascent(), cell(0).width(), '_');
+       pain.verticalLine  (x + 1, y - cell(0).ascent() + 1, cell(0).height());
+       pain.draw(x, y + cell(0).descent(), '\\');
 }
 
 
-void MathSqrtInset::Write(ostream & os, bool fragile)
+void MathSqrtInset::write(WriteStream & os) const
 {
-       os << '\\' << name << '{';
-       MathParInset::Write(os, fragile); 
-       os << '}';
+       os << "\\sqrt{" << cell(0) << '}';
 }
 
 
-void MathSqrtInset::WriteNormal(ostream & os)
+void MathSqrtInset::normalize(NormalStream & os) const
+{
+       os << "[sqrt " << cell(0) << ']';
+}
+
+void MathSqrtInset::maple(MapleStream & os) const
+{
+       os << "sqrt(" << cell(0) << ')';
+}
+
+void MathSqrtInset::mathematica(MathematicaStream & os) const
 {
-       os << "[sqrt ";
-       MathParInset::WriteNormal(os); 
-       os << "] ";
+       os << "Sqrt[" << cell(0) << ']';
 }
 
 
-void MathSqrtInset::Metrics()
+void MathSqrtInset::octave(OctaveStream & os) const
 {
-       MathParInset::Metrics();
-       ascent  += 4;
-       descent += 2;
-       int a;
-       int b;
-       hmax_ = mathed_char_height(LM_TC_VAR, size(), 'I', a, b);
-       if (hmax_ < 10)
-               hmax_ = 10;
-       wbody_ = width + 4;
-       width += hmax_ + 4;
+       os << "sqrt(" << cell(0) << ')';
 }
 
 
-bool MathSqrtInset::Inside(int x, int y) 
+void MathSqrtInset::mathmlize(MathMLStream & os) const
 {
-       return x >= xo() - hmax_
-               && x <= xo() + width - hmax_
-               && y <= yo() + descent
-               && y >= yo() - ascent;
+       os << MTag("msqrt") << cell(0) << ETag("msqrt");
 }