X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fmathed%2Fmath_metricsinfo.C;h=f0938619ff15993620301f04414a5f9f8a238772;hb=254272868f1d891b9d0a778f871afb23cce84081;hp=e69de29bb2d1d6434b8b29ae775ad8c2e48c5391;hpb=970f0247f7d3ebbabc1348549ef4bd8d9b335545;p=lyx.git

diff --git a/src/mathed/math_metricsinfo.C b/src/mathed/math_metricsinfo.C
index e69de29bb2..f0938619ff 100644
--- a/src/mathed/math_metricsinfo.C
+++ b/src/mathed/math_metricsinfo.C
@@ -0,0 +1,149 @@
+
+#include <config.h>
+
+#include "math_metricsinfo.h"
+#include "math_support.h"
+#include "frontends/Painter.h"
+
+
+
+MathMetricsBase::MathMetricsBase()
+	: font(), style(LM_ST_TEXT), fontname("mathnormal")
+{}
+
+
+
+
+MathMetricsInfo::MathMetricsInfo()
+	: view(0), inset(0), idx(0), fullredraw(false)
+{}
+
+
+
+
+MathPainterInfo::MathPainterInfo(Painter & p)
+	: pain(p)
+{}
+
+
+void MathPainterInfo::draw(int x, int y, char c)
+{
+	pain.text(x, y, c, base.font);
+}
+
+
+
+
+MathScriptChanger::MathScriptChanger(MathMetricsBase & mb)
+	: MathChanger<MathMetricsBase>(mb)
+{
+	save_ = mb;
+	switch (mb.style) {
+		case LM_ST_DISPLAY:
+		case LM_ST_TEXT:
+			mb.style = LM_ST_SCRIPT;
+			mb.font.decSize();
+			mb.font.decSize();
+			break;
+		case LM_ST_SCRIPT:
+			mb.style = LM_ST_SCRIPTSCRIPT;
+			mb.font.decSize();
+		default:
+			break;
+	}
+}
+
+MathScriptChanger::~MathScriptChanger()
+{
+	orig_ = save_;
+}
+
+
+
+
+// decrease math size for fractions
+MathFracChanger::MathFracChanger(MathMetricsBase & mb)
+	: MathChanger<MathMetricsBase>(mb)
+{
+	save_ = mb;
+	switch (mb.style) {
+		case LM_ST_DISPLAY:
+			mb.style = LM_ST_TEXT;
+			break;
+		case LM_ST_TEXT:
+			mb.style = LM_ST_SCRIPT;
+			mb.font.decSize();
+			mb.font.decSize();
+			break;
+		case LM_ST_SCRIPT:
+			mb.style = LM_ST_SCRIPTSCRIPT;
+			mb.font.decSize();
+			break;
+		default:
+			break;
+	}
+}
+
+MathFracChanger::~MathFracChanger()
+{
+	orig_ = save_;
+}
+
+
+
+
+MathShapeChanger::MathShapeChanger(LyXFont & font, LyXFont::FONT_SHAPE shape)
+	: MathChanger<LyXFont, LyXFont::FONT_SHAPE>(font)
+{
+	save_ = orig_.shape();
+	orig_.setShape(shape);
+}
+
+MathShapeChanger::~MathShapeChanger()
+{
+	orig_.setShape(save_);
+}
+
+
+
+
+void changeSize(LyXFont & font, int diff)
+{
+	if (diff < 0) {
+		font.decSize();
+		changeSize(font, diff + 1);
+	} else if (diff > 0) {
+		font.incSize();
+		changeSize(font, diff - 1);
+	}
+}
+
+MathStyleChanger::MathStyleChanger(MathMetricsBase & mb, MathStyles style)
+	:	MathChanger<MathMetricsBase>(mb)
+{
+	save_ = mb;
+	changeSize(mb.font, mb.style - style);
+}
+
+
+MathStyleChanger::~MathStyleChanger()
+{
+	orig_ = save_;
+}
+
+
+
+
+MathFontSetChanger::MathFontSetChanger(MathMetricsBase & mb, char const * name)
+	:	MathChanger<MathMetricsBase>(mb)
+{
+	save_ = mb;	
+	mb.fontname = name;
+	augmentFont(mb.font, name);
+}
+
+MathFontSetChanger::~MathFontSetChanger()
+{
+	orig_ = save_;
+}
+