X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fmathed%2FInsetMath.h;h=067bf6e876a2d0b7e46ee7f596fc37a89e44341a;hb=7441172d4d9a26eb4824bb8bee003f457ef34f1c;hp=421cd162b99d6be92c7e529404bd3a64f4edda79;hpb=decd2c74f105a11a21de08097649f9bc102a1b5c;p=features.git

diff --git a/src/mathed/InsetMath.h b/src/mathed/InsetMath.h
index 421cd162b9..067bf6e876 100644
--- a/src/mathed/InsetMath.h
+++ b/src/mathed/InsetMath.h
@@ -39,6 +39,17 @@ enum HullType {
 HullType hullType(docstring const & name);
 docstring hullName(HullType type);
 
+
+enum Limits {
+	// what is obtained with \c \\nolimits
+	NO_LIMITS = -1,
+	// the default
+	AUTO_LIMITS = 0,
+	// what is obtained with \c \\limits
+	LIMITS = 1
+};
+
+
 /**
 
 Abstract base class for all math objects.  A math insets is for use of the
@@ -61,6 +72,7 @@ class InsetMathArray;
 class InsetMathAMSArray;
 class InsetMathBrace;
 class InsetMathChar;
+class InsetMathClass;
 class InsetMathDelim;
 class InsetMathFracBase;
 class InsetMathFrac;
@@ -139,6 +151,7 @@ public:
 	virtual InsetMathBrace          * asBraceInset()          { return nullptr; }
 	virtual InsetMathBrace const    * asBraceInset() const    { return nullptr; }
 	virtual InsetMathChar const     * asCharInset() const     { return nullptr; }
+	virtual InsetMathClass const    * asClassInset() const    { return nullptr; }
 	virtual InsetMathDelim          * asDelimInset()          { return nullptr; }
 	virtual InsetMathDelim const    * asDelimInset() const    { return nullptr; }
 	virtual InsetMathFracBase       * asFracBaseInset()       { return nullptr; }
@@ -173,7 +186,7 @@ public:
 	virtual InsetMathSpecialChar const * asSpecialCharInset() const { return nullptr; }
 
 	/// The class of the math object (used primarily for spacing)
-	virtual MathClass mathClass() const;
+	virtual MathClass mathClass() const { return MC_ORD; }
 	/// Add this inset to a math row. Return true if contents got added
 	virtual bool addToMathRow(MathRow &, MetricsInfo & mi) const;
 	/// Hook that is run before metrics computation starts
@@ -185,15 +198,22 @@ public:
 	/// Hook that is run after drawing
 	virtual void afterDraw(PainterInfo const &) const {}
 
-	/// identifies things that can get scripts
-	virtual bool isScriptable() const { return false; }
 	/// will this get written as a single block in {..}
 	virtual bool extraBraces() const { return false; }
 
 	/// return the content as char if the inset is able to do so
 	virtual char_type getChar() const { return 0; }
-	/// identifies things that can get \limits or \nolimits
-	virtual bool takesLimits() const { return false; }
+
+	/// Whether the inset allows \(no)limits
+	bool allowsLimitsChange() const { return mathClass() == MC_OP; }
+	/// The default limits value
+	virtual Limits defaultLimits() const { return NO_LIMITS; }
+	/// whether the inset has limit-like sub/superscript
+	virtual Limits limits() const { return AUTO_LIMITS; }
+	/// sets types of sub/superscripts
+	virtual void limits(Limits) {}
+	/// write limits status for LaTeX and LyX code
+	void writeLimits(WriteStream & os) const;
 
 	/// replace things by other things
 	virtual void replace(ReplaceData &) {}