* Update header indentation.

* Added BScrollBar::SetOrientation().
* Improved _DrawArrowButton() to have a good visual result even when the
  scroll bar does not have the standard width or height.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27494 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/os/interface/ScrollBar.h

@@ -46,29 +46,32 @@ public:
 	virtual	void				ValueChanged(float newValue);
 
 			void				SetRange(float min, float max);
-				void		GetRange(float *min, float *max) const;
+			void				GetRange(float* _min, float* _max) const;
 			void				SetSteps(float smallStep, float largeStep);
-				void		GetSteps(float *smallStep, float *largeStep) const;
+			void				GetSteps(float* _smallStep,
+									float* _largeStep) const;
 			void				SetTarget(BView *target);
 			void				SetTarget(const char* targetName);
 			BView*				Target() const;
+			void				SetOrientation(enum orientation orientation);
 			orientation			Orientation() const;
 
-		virtual void		MessageReceived(BMessage *msg);
+	virtual void				MessageReceived(BMessage* message);
 	virtual	void				MouseDown(BPoint pt);
 	virtual	void				MouseUp(BPoint pt);
-		virtual	void		MouseMoved(BPoint pt, uint32 code, const BMessage *msg);
+	virtual	void				MouseMoved(BPoint pt, uint32 code,
+									const BMessage* dragMessage);
 	virtual	void				DetachedFromWindow();
 	virtual	void				Draw(BRect updateRect);
 	virtual	void				FrameMoved(BPoint new_position);
-		virtual	void		FrameResized(float new_width, float new_height);
+	virtual	void				FrameResized(float newWidth, float newHeight);
 
-		virtual BHandler	*ResolveSpecifier(BMessage *msg, int32 index,
+	virtual BHandler*			ResolveSpecifier(BMessage* message,
-								BMessage *specifier, int32 form,
+									int32 index, BMessage* specifier,
-								const char *property);
+									int32 form, const char* property);
 
 	virtual void				ResizeToPreferred();
-		virtual void		GetPreferredSize(float *width, float *height);
+	virtual void				GetPreferredSize(float* _width, float* _height);
 	virtual void				MakeFocus(bool state = true);
 	virtual void				AllAttached();
 	virtual void				AllDetached();
@@ -88,7 +91,8 @@ public:
 	class Private;
 	friend class Private;
 
-		friend status_t control_scrollbar(scroll_bar_info *info, BScrollBar *bar);
+	friend status_t control_scrollbar(scroll_bar_info* info,
+		BScrollBar *bar);
 		// for use within the preflet
 
 	virtual	void				_ReservedScrollBar1();
@@ -96,7 +100,8 @@ public:
 	virtual	void				_ReservedScrollBar3();
 	virtual	void				_ReservedScrollBar4();
 
-		BScrollBar	&operator=(const BScrollBar &);
+	// disabled
+			BScrollBar&			operator=(const BScrollBar& other);
 
 			bool				_DoubleArrows() const;
 			void				_UpdateThumbFrame();
@@ -106,7 +111,8 @@ public:
 			void				_UpdateTargetValue(BPoint where);
 			void				_UpdateArrowButtons();
 			void				_DrawDisabledBackground(BRect area,
-								const rgb_color& light, const rgb_color& dark,
+									const rgb_color& light,
+									const rgb_color& dark,
 									const rgb_color& fill);
 			void				_DrawArrowButton(int32 direction,
 									bool doubleArrows, BRect frame,

src/kits/interface/ScrollBar.cpp

@@ -563,6 +563,18 @@ BScrollBar::Target() const
 }
 
 
+void
+BScrollBar::SetOrientation(enum orientation orientation)
+{
+	if (fOrientation == orientation)
+		return;
+
+	fOrientation = orientation;
+	InvalidateLayout();
+	Invalidate();
+}
+
+
 orientation
 BScrollBar::Orientation() const
 {
@@ -1610,27 +1622,29 @@ BScrollBar::_DrawArrowButton(int32 direction, bool doubleArrows, BRect r,
 	}
 
 	BPoint tri1, tri2, tri3;
-	r.InsetBy(4, 4);
+	float hInset = r.Width() / 3;
+	float vInset = r.Height() / 3;
+	r.InsetBy(hInset, vInset);
 
 	switch (direction) {
 		case ARROW_LEFT:
 			tri1.Set(r.right, r.top);
-			tri2.Set(r.left + 1, (r.top + r.bottom + 1) /2 );
+			tri2.Set(r.right - r.Width() / 1.33, (r.top + r.bottom + 1) /2 );
 			tri3.Set(r.right, r.bottom + 1);
 			break;
 		case ARROW_RIGHT:
 			tri1.Set(r.left, r.bottom + 1);
-			tri2.Set(r.right - 1, (r.top + r.bottom + 1) / 2);
+			tri2.Set(r.left + r.Width() / 1.33, (r.top + r.bottom + 1) / 2);
 			tri3.Set(r.left, r.top);
 			break;
 		case ARROW_UP:
 			tri1.Set(r.left, r.bottom);
-			tri2.Set((r.left + r.right + 1) / 2, r.top + 1);
+			tri2.Set((r.left + r.right + 1) / 2, r.bottom - r.Height() / 1.33);
 			tri3.Set(r.right + 1, r.bottom);
 			break;
 		default:
 			tri1.Set(r.left, r.top);
-			tri2.Set((r.left + r.right + 1) / 2, r.bottom - 1);
+			tri2.Set((r.left + r.right + 1) / 2, r.top + r.Height() / 1.33);
 			tri3.Set(r.right + 1, r.top);
 			break;
 	}
@@ -1642,7 +1656,7 @@ BScrollBar::_DrawArrowButton(int32 direction, bool doubleArrows, BRect r,
 		tri3 = tri3 + offset;
 	}
 
-	r.InsetBy(-3, -3);
+	r.InsetBy(-(hInset - 1), -(vInset - 1));
 	SetHighColor(normal);
 	FillRect(r);
 
@@ -1652,7 +1666,7 @@ BScrollBar::_DrawArrowButton(int32 direction, bool doubleArrows, BRect r,
 	arrowShape.LineTo(tri3);
 
 	SetHighColor(arrow);
-	SetPenSize(2.0);
+	SetPenSize(ceilf(hInset / 2.0));
 	StrokeShape(&arrowShape);
 	SetPenSize(1.0);