Feature [feature-requests:1355]. Round instead of truncating for SCI_TEXTWIDTH.

2 files changed, 4 insertions, 4 deletions

diff --git a/src/Editor.cxx b/src/Editor.cxx
index b7636adb2..234a2aaa6 100644
--- a/src/Editor.cxx
+++ b/src/Editor.cxx
@@ -1823,11 +1823,11 @@ Sci::Position Editor::FormatRange(bool draw, const Sci_RangeToFormat *pfr) {
 	return view.FormatRange(draw, pfr, surface, surfaceMeasure, *this, vs);
 }
 
-int Editor::TextWidth(int style, const char *text) {
+long Editor::TextWidth(uptr_t style, const char *text) {
 	RefreshStyleData();
 	AutoSurface surface(this);
 	if (surface) {
-		return static_cast<int>(surface->WidthText(vs.styles[style].font, text));
+		return std::lround(surface->WidthText(vs.styles[style].font, text));
 	} else {
 		return 1;
 	}
@@ -6757,7 +6757,7 @@ sptr_t Editor::WndProc(unsigned int iMessage, uptr_t wParam, sptr_t lParam) {
 	case SCI_TEXTWIDTH:
 		PLATFORM_ASSERT(wParam < vs.styles.size());
 		PLATFORM_ASSERT(lParam);
-		return TextWidth(static_cast<int>(wParam), CharPtrFromSPtr(lParam));
+		return TextWidth(wParam, CharPtrFromSPtr(lParam));
 
 	case SCI_TEXTHEIGHT:
 		RefreshStyleData();
diff --git a/src/Editor.h b/src/Editor.h
index 80203d319..dda14c311 100644
--- a/src/Editor.h
+++ b/src/Editor.h
@@ -388,7 +388,7 @@ protected:	// ScintillaBase subclass needs access to much of Editor
 	void RefreshPixMaps(Surface *surfaceWindow);
 	void Paint(Surface *surfaceWindow, PRectangle rcArea);
 	Sci::Position FormatRange(bool draw, const Sci_RangeToFormat *pfr);
-	int TextWidth(int style, const char *text);
+	long TextWidth(uptr_t style, const char *text);
 
 	virtual void SetVerticalScrollPos() = 0;
 	virtual void SetHorizontalScrollPos() = 0;