Shared: introduce font size for StatusView based on scrollbar size

headers/private/shared/StatusView.h

@@ -0,0 +1,5 @@
+namespace BPrivate {
+
+void AdoptScrollBarFontSize(BView*);
+
+} // namespace BPrivate

src/apps/stylededit/StatusView.cpp

@@ -9,6 +9,7 @@
 
 
 #include "StatusView.h"
+#include <StatusView.h>
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -63,7 +64,7 @@ void
 StatusView::AttachedToWindow()
 {
 	SetFont(be_plain_font);
-	SetFontSize(10. * be_plain_font->Size() / 12.f);
+	BPrivate::AdoptScrollBarFontSize(this);
 
 	BMessage message(UPDATE_STATUS);
 	message.AddInt32("line", 1);

src/kits/shared/Jamfile

@@ -56,6 +56,7 @@ for architectureObject in [ MultiArchSubDirSetup ] {
 			SettingsHandler.cpp
 			SettingsMessage.cpp
 			ShakeTrackingFilter.cpp
+			StatusView.cpp
 			StringForRate.cpp
 			StringForSize.cpp
 			StripeView.cpp

src/kits/shared/StatusView.cpp

@@ -0,0 +1,27 @@
+#include <Application.h>
+#include <ControlLook.h>
+#include <View.h>
+
+#include <stdio.h>
+
+namespace BPrivate {
+
+void AdoptScrollBarFontSize(BView* view) {
+	float maxSize = be_control_look->GetScrollBarWidth();
+	BFont testFont = be_plain_font;
+	float currentSize;
+	font_height fontHeight;
+
+	for (float fontSize = 9.0F; fontSize < 48.0F; fontSize++) {
+		testFont.SetSize(fontSize);
+		testFont.GetHeight(&fontHeight);
+		currentSize = fontHeight.ascent + fontHeight.descent;
+		if (currentSize > maxSize) {
+			view->SetFontSize(fontSize -1);
+			break;
+		}
+		fontSize++;
+	}
+}
+
+} // namespace BPrivate