* Added a basic tool tip API, and implementation.

* The BView API can probably be regarded as good enough; the implementation
  might need to be improved over time (also, some things as archivability
  aren't fully implemented yet). The ToolTip.h header should get public once
  finalized.
* Added new B_MOUSE_IDLE message that is sent to a BView after a certain
  time has passed (BToolTipManager::ShowDelay()).
* Added small test app (ToolTipTest) that shows what is already working.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32078 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/interface/ToolTip.h

@@ -0,0 +1,73 @@
+/*
+ * Copyright 2009, Haiku, Inc. All Rights Reserved.
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef _TOOL_TIP_H
+#define _TOOL_TIP_H
+
+
+#include <Alignment.h>
+#include <Archivable.h>
+#include <Point.h>
+#include <Referenceable.h>
+
+
+class BView;
+class BTextView;
+
+
+class BToolTip : public BArchivable, public BReferenceable {
+public:
+								BToolTip();
+								BToolTip(BMessage* archive);
+	virtual						~BToolTip();
+
+	virtual	status_t			Archive(BMessage* archive,
+									bool deep = true) const;
+
+	virtual	BView*				View() const = 0;
+
+	virtual void				SetSticky(bool enable);
+			bool				IsSticky() const;
+	virtual void				SetMouseRelativeLocation(BPoint location);
+			BPoint				MouseRelativeLocation() const;
+	virtual void				SetAlignment(BAlignment alignment);
+			BAlignment			Alignment() const;
+
+private:
+								BToolTip(const BToolTip& other);
+			BToolTip&			operator=(const BToolTip &other);
+
+			void				_InitData();
+
+private:
+			bool				fIsSticky;
+			BPoint				fRelativeLocation;
+			BAlignment			fAlignment;
+};
+
+
+class BTextToolTip : public BToolTip {
+public:
+								BTextToolTip(const char* text);
+								BTextToolTip(BMessage* archive);
+	virtual						~BTextToolTip();
+
+	static	BTextToolTip*		Instantiate(BMessage* archive);
+	virtual	status_t			Archive(BMessage* archive,
+									bool deep = true) const;
+
+	virtual	BView*				View() const;
+
+			const char*			Text() const;
+			void				SetText(const char* text);
+
+private:
+			void				_InitData(const char* text);
+
+private:
+			BTextView*			fTextView;
+};
+
+
+#endif	// _TOOL_TIP_H

headers/private/interface/ToolTipManager.h

@@ -0,0 +1,41 @@
+/*
+ * Copyright 2009, Haiku, Inc. All Rights Reserved.
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef _TOOL_TIP_MANAGER_H
+#define _TOOL_TIP_MANAGER_H
+
+
+#include <Messenger.h>
+#include <Point.h>
+
+
+class BToolTip;
+
+
+class BToolTipManager {
+public:
+	static	BToolTipManager*	Manager();
+
+			void				ShowTip(BToolTip* tip, BPoint point);
+			void				HideTip();
+
+			void				SetShowDelay(bigtime_t time);
+			bigtime_t			ShowDelay() const;
+			void				SetHideDelay(bigtime_t time);
+			bigtime_t			HideDelay() const;
+
+private:
+								BToolTipManager();
+	virtual						~BToolTipManager();
+
+			BMessenger			fWindow;
+
+			bigtime_t			fShowDelay;
+			bigtime_t			fHideDelay;
+
+	static	BToolTipManager*	sDefaultInstance;
+};
+
+
+#endif	// _TOOL_TIP_MANAGER_H

headers/private/interface/ToolTipWindow.h

@@ -0,0 +1,24 @@
+/*
+ * Copyright 2009, Haiku, Inc. All Rights Reserved.
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef TOOL_TIP_WINDOW_H
+#define TOOL_TIP_WINDOW_H
+
+
+#include <Window.h>
+
+
+namespace BPrivate {
+
+class ToolTipWindow : public BWindow {
+public:
+							ToolTipWindow(BToolTip* tip, BPoint where);
+
+	virtual	void			MessageReceived(BMessage* message);
+};
+
+}	// namespace BPrivate
+
+
+#endif	// TOOL_TIP_WINDOW_H