BMenuField: If fixed size always set max content width

When you resize, also set max content width.

Create a SetMaxContentWidth() method that includes the margins.

headers/private/interface/BMCPrivate.h

@@ -51,6 +51,7 @@ public:
 	virtual	void				FrameResized(float width, float height);
 	virtual	void				MessageReceived(BMessage* msg);
 	virtual	void				MakeFocus(bool focused = true);
+	virtual	void				SetMaxContentWidth(float width);
 
 			void				TogglePopUpMarker(bool show)
 									{ fShowPopUpMarker = show; }

src/kits/interface/BMCPrivate.cpp

@@ -67,7 +67,7 @@ _BMCMenuBar_::_BMCMenuBar_(BRect frame, bool fixedSize, BMenuField* menuField)
 	fRunner(NULL),
 	fShowPopUpMarker(true)
 {
-	_Init(true);
+	_Init(fixedSize);
 }
 
 
@@ -79,7 +79,7 @@ _BMCMenuBar_::_BMCMenuBar_(BMenuField* menuField)
 	fRunner(NULL),
 	fShowPopUpMarker(true)
 {
-	_Init(false);
+	_Init(true);
 }
 
 
@@ -265,6 +265,17 @@ _BMCMenuBar_::MakeFocus(bool focused)
 }
 
 
+void
+_BMCMenuBar_::SetMaxContentWidth(float width)
+{
+	float left;
+	float right;
+	GetItemMargins(&left, NULL, &right, NULL);
+
+	BMenuBar::SetMaxContentWidth(width - (left + right));
+}
+
+
 BSize
 _BMCMenuBar_::MinSize()
 {
@@ -325,5 +336,5 @@ _BMCMenuBar_::_Init(bool setMaxContentWidth)
 	fPreviousWidth = Bounds().Width();
 
 	if (setMaxContentWidth)
-		SetMaxContentWidth(fPreviousWidth - (left + right));
+		SetMaxContentWidth(fPreviousWidth);
 }

src/kits/interface/MenuField.cpp

@@ -539,6 +539,17 @@ BMenuField::FrameResized(float newWidth, float newHeight)
 {
 	BView::FrameResized(newWidth, newHeight);
 
+	if (fFixedSizeMB) {
+		// we have let the menubar resize itself, but
+		// in fixed size mode, the menubar is supposed to
+		// be at the right end of the view always. Since
+		// the menu bar is in follow left/right mode then,
+		// resizing ourselfs might have caused the menubar
+		// to be outside now
+		fMenuBar->ResizeTo(_MenuBarWidth(), fMenuBar->Frame().Height());
+		fMenuBar->SetMaxContentWidth(_MenuBarWidth());
+	}
+
 	if (newHeight != fLayoutData->previous_height && Label()) {
 		// The height changed, which means the label has to move and we
 		// probably also invalidate a part of the borders around the menu bar.
@@ -654,8 +665,10 @@ BMenuField::SetDivider(float position)
 
 		fMenuBar->MoveTo(_MenuBarOffset(), kVMargin);
 
-		if (fFixedSizeMB)
+		if (fFixedSizeMB) {
 			fMenuBar->ResizeTo(_MenuBarWidth(), dirty.Height());
+			fMenuBar->SetMaxContentWidth(_MenuBarWidth());
+		}
 
 		dirty = dirty | fMenuBar->Frame();
 		dirty.InsetBy(-kVMargin, -kVMargin);
@@ -722,15 +735,7 @@ BMenuField::ResizeToPreferred()
 
 	BView::ResizeToPreferred();
 
-	if (fFixedSizeMB) {
-		// we have let the menubar resize itself, but
-		// in fixed size mode, the menubar is supposed to
-		// be at the right end of the view always. Since
-		// the menu bar is in follow left/right mode then,
-		// resizing ourselfs might have caused the menubar
-		// to be outside now
-		fMenuBar->ResizeTo(_MenuBarWidth(), fMenuBar->Frame().Height());
-	}
+	Invalidate();
 }