2 files changed, 19 insertions, 6 deletions
diff --git a/Swift/QtUI/Trellis/QtDNDTabBar.cpp b/Swift/QtUI/Trellis/QtDNDTabBar.cpp
index a6806c6..dbe397b 100644
--- a/Swift/QtUI/Trellis/QtDNDTabBar.cpp
+++ b/Swift/QtUI/Trellis/QtDNDTabBar.cpp
@@ -5,16 +5,16 @@
  */
 
 #include <Swift/QtUI/Trellis/QtDNDTabBar.h>
 
 #include <cassert>
 
-#include <QMouseEvent>
-#include <QDropEvent>
 #include <QDrag>
+#include <QDropEvent>
 #include <QMimeData>
+#include <QMouseEvent>
 #include <QPainter>
 #include <QTabWidget>
 
 namespace Swift {
 
 QtDNDTabBar::QtDNDTabBar(QWidget* parent) : QTabBar(parent) {
@@ -47,12 +47,24 @@ QSize QtDNDTabBar::sizeHint() const {
 	if (hint.isEmpty()) {
 		hint = QSize(parentWidget()->width(), defaultTabHeight);
 	}
 	return hint;
 }
 
+QSize QtDNDTabBar::tabSizeHint(int index) const {
+	QSize tabSize = QTabBar::tabSizeHint(index);
+#if defined(Q_OS_MAC)
+	// With multiple tabs having the same label in a QTabBar, the size hint computed by
+	// Qt on OS X is too small and it is elided even though there is enough horizontal
+	// space available. We work around this issue by adding the width of a letter to the
+	// size hint.
+	tabSize += QSize(QFontMetrics(font()).width("I"), 0);
+#endif
+	return tabSize;
+}
+
 void QtDNDTabBar::dragEnterEvent(QDragEnterEvent* dragEnterEvent) {
 	QtDNDTabBar* sourceTabBar = dynamic_cast<QtDNDTabBar*>(dragEnterEvent->source());
 	if (sourceTabBar) {
 		dragEnterEvent->acceptProposedAction();
 	}
 }
diff --git a/Swift/QtUI/Trellis/QtDNDTabBar.h b/Swift/QtUI/Trellis/QtDNDTabBar.h
index 194cce8..71ca94b 100644
--- a/Swift/QtUI/Trellis/QtDNDTabBar.h
+++ b/Swift/QtUI/Trellis/QtDNDTabBar.h
@@ -1,8 +1,8 @@
 /*
- * Copyright (c) 2014 Isode Limited.
+ * Copyright (c) 2014-2015 Isode Limited.
  * All rights reserved.
  * See the COPYING file for more information.
  */
 
 #pragma once
 
@@ -23,15 +23,16 @@ class QtDNDTabBar : public QTabBar {
 		virtual QSize sizeHint() const;
 
 	signals:
 		void onDropSucceeded();
 
 	protected:
-		void dragEnterEvent(QDragEnterEvent* dragEnterEvent);
-		void dropEvent(QDropEvent* dropEvent);
-		bool event(QEvent* event);
+		virtual void dragEnterEvent(QDragEnterEvent* dragEnterEvent);
+		virtual void dropEvent(QDropEvent* dropEvent);
+		virtual bool event(QEvent* event);
+		virtual QSize tabSizeHint(int index) const;
 
 	private:
 		int defaultTabHeight;
 		int dragIndex;
 		QString dragText;
 		QWidget* dragWidget;