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fix bug 2060

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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@10525 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Georg Baum 2005-10-05 21:19:32 +00:00
parent 03eed1b8ba
commit 7c67a37f53
4 changed files with 45 additions and 2 deletions
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8
src/mathed/ChangeLog
View File

@ -1,3 +1,11 @@
2005-10-04 Georg Baum <Georg.Baum@post.rwth-aachen.de>
* math_macro.C (editXY): new, fix crash (bug 2060)
* math_macro.C (cursorPos): new, fix potential crash
* math_macro.C (drawSelection): new, fix potential crash
* math_nestinset.C (doDispatch): fix crash when inserting math macros
with 0 arguments
2005-09-30 Jean-Marc Lasgouttes <lasgouttes@lyx.org>
* math_nestinset.C (doDispatch): do not leave the inset after

26
src/mathed/math_macro.C
View File

@ -46,6 +46,15 @@ string MathMacro::name() const
}
void MathMacro::cursorPos(CursorSlice const & sl, bool boundary, int & x,
int & y) const
{
// We may have 0 arguments, but MathNestInset requires at least one.
if (nargs() > 0)
MathNestInset::cursorPos(sl, boundary, x, y);
}
void MathMacro::metrics(MetricsInfo & mi, Dimension & dim) const
{
if (!MacroTable::globalMacros().has(name())) {
@ -102,6 +111,14 @@ void MathMacro::draw(PainterInfo & pi, int x, int y) const
}
void MathMacro::drawSelection(PainterInfo & pi, int x, int y) const
{
// We may have 0 arguments, but MathNestInset requires at least one.
if (nargs() > 0)
MathNestInset::drawSelection(pi, x, y);
}
void MathMacro::validate(LaTeXFeatures & features) const
{
if (name() == "binom" || name() == "mathcircumflex")
@ -109,6 +126,15 @@ void MathMacro::validate(LaTeXFeatures & features) const
}
InsetBase * MathMacro::editXY(LCursor & cur, int x, int y)
{
// We may have 0 arguments, but MathNestInset requires at least one.
if (nargs() > 0)
return MathNestInset::editXY(cur, x, y);
return this;
}
void MathMacro::maple(MapleStream & os) const
{
updateExpansion();

8
src/mathed/math_macro.h
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@ -28,8 +28,14 @@ public:
void draw(PainterInfo & pi, int x, int y) const;
///
void drawExpanded(PainterInfo & pi, int x, int y) const;
/// draw selection background
void drawSelection(PainterInfo & pi, int x, int y) const;
///
void metrics(MetricsInfo & mi, Dimension & dim) const;
/// get cursor position
void cursorPos(CursorSlice const & sl, bool boundary, int & x, int & y) const;
///
InsetBase * editXY(LCursor & cur, int x, int y);
///
std::string name() const;
///
@ -60,7 +66,7 @@ private:
std::string name_;
/// the unexpanded macro defintition
mutable MathArray tmpl_;
/// the matcro substituted with our args
/// the macro substituted with our args
mutable MathArray expanded_;
};

5
src/mathed/math_nestinset.C
View File

@ -859,7 +859,10 @@ void MathNestInset::doDispatch(LCursor & cur, FuncRequest & cmd)
int cell(0);
if (cmd.argument == "\\root")
cell = 1;
if (ar.size() == 1 && (ar[0].nucleus()->asNestInset())) {
// math macros are nest insets and may have 0 cells.
// handleNest would crash in this case.
if (ar.size() == 1 && (ar[0].nucleus()->asNestInset()) &&
ar[0].nucleus()->nargs() > cell) {
cur.handleNest(ar[0], cell);
} else
cur.niceInsert(cmd.argument);