X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FFontInfo.cpp;h=be792623071b74fb36f9f7bb9383b49bf65e6bd1;hb=167eea3990a1a2b5e64ab05ebb26986e76c3b160;hp=e611288ff4422ef58d6b370b13162de02fd12bea;hpb=7cf8b9da78d2747e4bba25d7f103da422ae28a6f;p=lyx.git

diff --git a/src/FontInfo.cpp b/src/FontInfo.cpp
index e611288ff4..be79262307 100644
--- a/src/FontInfo.cpp
+++ b/src/FontInfo.cpp
@@ -17,11 +17,15 @@
 #include "ColorSet.h"
 #include "FontInfo.h"
 #include "Lexer.h"
+#include "LyXRC.h"
 
+#include "support/convert.h"
 #include "support/debug.h"
 #include "support/docstring.h"
 #include "support/lstrings.h"
+#include "support/RefChanger.h"
 
+#include <algorithm>
 #include <ostream>
 #include <sstream>
 
@@ -167,6 +171,29 @@ FontInfo & FontInfo::incSize()
 }
 
 
+double FontInfo::realSize() const
+{
+	double d = convert<double>(lyxrc.font_sizes[size()]);
+	// The following is according to the average of the values in the
+	// definitions of \defaultscriptratio and \defaultscriptscriptratio in LaTeX
+	// font packages. No attempt is made to implement the actual values from
+	// \DefineMathSizes.
+	switch (style()) {
+	case LM_ST_DISPLAY:
+	case LM_ST_TEXT:
+		break;
+	case LM_ST_SCRIPT:
+		d *= .73;
+		break;
+	case LM_ST_SCRIPTSCRIPT:
+		d *= .55;
+		break;
+	}
+	// Never go below the smallest size
+	return max(d, convert<double>(lyxrc.font_sizes[FONT_SIZE_TINY]));
+}
+
+
 /// Reduce font to fall back to template where possible
 void FontInfo::reduce(FontInfo const & tmplt)
 {
@@ -245,6 +272,32 @@ FontInfo & FontInfo::realize(FontInfo const & tmplt)
 }
 
 
+Changer FontInfo::changeColor(ColorCode const color)
+{
+	return make_change(color_, color);
+}
+
+
+Changer FontInfo::changeShape(FontShape const shape)
+{
+	return make_change(shape_, shape);
+}
+
+
+Changer FontInfo::changeStyle(MathStyle const new_style)
+{
+	return make_change(style_, new_style);
+}
+
+
+Changer FontInfo::change(FontInfo font, bool realiz)
+{
+	if (realiz)
+		font.realize(*this);
+	return make_change(*this, font);
+}
+
+
 /// Updates a misc setting according to request
 static FontState setMisc(FontState newfont,
 	FontState org)