Replace hardcoded inheritFont() with InheritFont InsetLayout tag

Each removed inheritFont method is replaced by a 'InheritFont false'
line in the relevant InsetLayout entry.

Add code to layout2layout that does this automatically when the entry
is missing.

The case of InsetScript is special, since the inheritFont() was not
needed here: the default is indeed true.

Fixes bug #12238.

lib/layouts/stdinsets.inc

@@ -4,7 +4,7 @@
 #
 # Detailed format description is available in the customization manual
 
-Format 100
+Format 101
 
 Provides stdinsets 1
 
@@ -19,6 +19,7 @@ InsetLayout Marginal
 	LabelString           Margin
 	LatexType             command
 	LatexName             marginpar
+	InheritFont 	      false
 	Font
 	  Size                Small
 	EndFont
@@ -52,6 +53,7 @@ InsetLayout Foot
 	LatexType             Command
 	LatexName             footnote
 	Counter               footnote
+	InheritFont 	      false
 	Font
 	  Size                Small
 	EndFont
@@ -138,6 +140,7 @@ InsetLayout Note:Comment
 	LatexName             comment
 	Requires	      verbatim
 	BgColor               commentbg
+	InheritFont 	      false
 	LabelFont
 	  Color               comment
 	  Size                Small
@@ -179,6 +182,7 @@ InsetLayout Note:Greyedout
 	LatexName             lyxgreyedout
 	Requires	      color,lyxgreyedout
 	BgColor               greyedoutbg
+	InheritFont	      false
 	Font
 	  Size                Normal
 	  Color               greyedouttext
@@ -351,6 +355,7 @@ InsetLayout Listings
 	LabelString           Listings[[inset]]
 	LatexType             none
 	Decoration            minimalistic
+	InheritFont	      false
 	Font
 	  Color               foreground
 	  Family              typewriter
@@ -462,6 +467,7 @@ InsetLayout IndexMacro:subentry
 End
 
 InsetLayout Box
+	InheritFont           false
 	LabelFont
 	  Color               foreground
 	  Size                Small
@@ -572,6 +578,7 @@ End
 
 InsetLayout Float
 	LaTeXType             environment
+	InheritFont 	      false
 	LabelFont
 	  Color               collapsible
 	  Size                Small
@@ -800,6 +807,7 @@ InsetLayout PrintNomencl
 End
 
 InsetLayout Tabular
+	InheritFont false
 	HTMLStyle
 		table {
 			border-collapse: collapse;

lib/scripts/layout2layout.py

@@ -478,8 +478,9 @@ def convert(lines, end_format):
     re_trimLabelStringAppendix  = re.compile(b'^(\\s*LabelStringAppendix\\s+)"\\s*(.*?)\\s*"\\s*$')
     re_trimEndLabelString = re.compile(b'^(\\s*EndLabelString\\s+)"\\s*(.*?)\\s*"\\s*$')
     re_trimLabelCounter = re.compile(b'^(\\s*LabelCounter\\s+)"\\s*(.*?)\\s*"\\s*$')
-
-
+    # for format 100
+    re_InsetLayout100 = re.compile(b'^\\s*InsetLayout\\s+\\"?(Box|Float|Foot|Marginal|Listings|Note:Comment|Note:Greyedout|Tabular)(:\\S*)?\\"?\\s*$', re.IGNORECASE)
+    re_InheritFont = re.compile(b'^(\\s*)InheritFont(\\s+)(\\S+)$', re.IGNORECASE)
     # counters for sectioning styles (hardcoded in 1.3)
     counters = {b"part"          : b"\\Roman{part}",
                 b"chapter"       : b"\\arabic{chapter}",
@@ -586,7 +587,36 @@ def convert(lines, end_format):
                 i += 1
             continue
 
-        if 87 <= format <= 101:
+        if format == 100:
+            # InheritFont has been introduced and defaults to true. Some insets had
+            # an hardcoded inheritFont') method returning true. We removed them, so
+            # we want to introduce the correct tag if it is not already there.
+            match = re_InsetLayout100.match(lines[i])
+            if not match:
+                i += 1
+                continue
+
+            inheritfont_found = False
+            inherited = False
+            while i < len(lines):
+                match = re_InheritFont.match(lines[i])
+                if match:
+                    inheritfont_found = True
+                else:
+                    match = re_CopyStyle.match(lines[i])
+                    if match:
+                        inherited = True
+                    else:
+                        match = re_End.match(lines[i])
+                        if match:
+                            break
+                i += 1
+            if not inheritfont_found and not inherited:
+                lines.insert(i, b"\tInheritFont false")
+
+            continue
+
+        if 87 <= format <= 99:
             # nothing to do.
             i += 1
             continue

src/TextClass.cpp

@@ -59,7 +59,7 @@ namespace lyx {
 // You should also run the development/tools/updatelayouts.py script,
 // to update the format of all of our layout files.
 //
-int const LAYOUT_FORMAT = 100; // forenr: add inset label color
+int const LAYOUT_FORMAT = 101; // lasgouttes: add InheritFont tag
 
 
 // Layout format for the current lyx file format. Controls which format is

src/insets/InsetBox.h

@@ -127,8 +127,6 @@ public:
 	///
 	bool neverIndent() const override { return true; }
 	///
-	bool inheritFont() const override { return false; }
-	///
 	void latex(otexstream &, OutputParams const &) const override;
 	///
 	int plaintext(odocstringstream & ods, OutputParams const & op,

src/insets/InsetFloat.h

@@ -105,8 +105,6 @@ private:
 	///
 	bool insetAllowed(InsetCode) const override;
 	///
-	bool inheritFont() const override { return false; }
-	///
 	bool getStatus(Cursor &, FuncRequest const &, FuncStatus &) const override;
 	///
 	bool hasSubCaptions(ParIterator const & it) const override;

src/insets/InsetFootlike.h

@@ -31,10 +31,6 @@ private:
 	void write(std::ostream & os) const override;
 	///
 	bool insetAllowed(InsetCode) const override;
-	/** returns false if, when outputting LaTeX, font changes should
-	    be closed before generating this inset. This is needed for
-	    insets that may contain several paragraphs */
-	bool inheritFont() const override { return false; }
 };
 
 

src/insets/InsetListings.h

@@ -43,8 +43,6 @@ public:
 private:
 	///
 	bool isLabeled() const override { return true; }
-	/// false is needed since listings do their own font handling.
-	bool inheritFont() const override { return false; }
 	///
 	InsetCode lyxCode() const override { return LISTINGS_CODE; }
 	/// lstinline is inlined, normal listing is displayed

src/insets/InsetNote.h

@@ -61,8 +61,6 @@ private:
 	InsetCode lyxCode() const override { return NOTE_CODE; }
 	///
 	docstring layoutName() const override;
-	///
-	bool inheritFont() const override { return params_.type == InsetNoteParams::Note; }
 	/// Is the content of this inset part of the output document?
 	bool producesOutput() const override
 		{ return params_.type == InsetNoteParams::Greyedout; }

src/insets/InsetScript.h

@@ -95,8 +95,6 @@ public:
 	///
 	bool neverIndent() const override { return true; }
 	///
-	bool inheritFont() const override { return true; }
-	///
 	int plaintext(odocstringstream & ods, OutputParams const & op,
 	              size_t max_length = INT_MAX) const override;
 	///

src/insets/InsetTabular.h

@@ -62,6 +62,8 @@ public:
 	///
 	InsetCode lyxCode() const override { return CELL_CODE; }
 	///
+	docstring layoutName() const override { return from_ascii("Tabular:Cell"); }
+	///
 	Inset * clone() const override { return new InsetTableCell(*this); }
 	///
 	bool getStatus(Cursor & cur, FuncRequest const & cmd,
@@ -88,8 +90,6 @@ public:
 				  UpdateType utype, TocBackend & backend) const override;
 	///
 	void metrics(MetricsInfo &, Dimension &) const override;
-	/// Needs to be same as InsetTabular
-	bool inheritFont() const override { return false; }
 	/// Can the cell contain several paragraphs?
 	bool allowMultiPar() const override { return !isMultiRow && (!isMultiColumn || isFixedWidth); }
 	///
@@ -1039,8 +1039,6 @@ public:
 	///
 	bool canPaintChange(BufferView const &) const override { return true; }
 	///
-	bool inheritFont() const override { return false; }
-	///
 	bool allowMultiPar() const override;
 	///
 	bool allowsCaptionVariation(std::string const &) const override;