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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef PPAPI_CPP_MOUSE_CURSOR_H_
#define PPAPI_CPP_MOUSE_CURSOR_H_
#include "ppapi/c/ppb_mouse_cursor.h"
#include "ppapi/cpp/image_data.h"
#include "ppapi/cpp/instance_handle.h"
#include "ppapi/cpp/point.h"
namespace pp {
class MouseCursor {
public:
/// Sets the given mouse cursor. The mouse cursor will be in effect whenever
/// the mouse is over the given instance until it is set again by another
/// call. Note that you can hide the mouse cursor by setting it to the
/// <code>PP_MOUSECURSOR_TYPE_NONE</code> type.
///
/// This function allows setting both system defined mouse cursors and
/// custom cursors. To set a system-defined cursor, pass the type you want
/// and set the custom image to a default-constructor ImageData object.
/// To set a custom cursor, set the type to
/// <code>PP_MOUSECURSOR_TYPE_CUSTOM</code> and specify your image and hot
/// spot.
///
/// @param[in] instance A handle identifying the instance that the mouse
/// cursor will affect.
///
/// @param[in] type A <code>PP_MouseCursor_Type</code> identifying the type
/// of mouse cursor to show. See <code>ppapi/c/ppb_mouse_cursor.h</code>.
///
/// @param[in] image A <code>ImageData</code> object identifying the
/// custom image to set when the type is
/// <code>PP_MOUSECURSOR_TYPE_CUSTOM</code>. The image must be less than 32
/// pixels in each direction and must be of the system's native image format.
/// When you are specifying a predefined cursor, this parameter should be a
/// default-constructed ImageData.
///
/// @param[in] hot_spot When setting a custom cursor, this identifies the
/// pixel position within the given image of the "hot spot" of the cursor.
/// When specifying a stock cursor, this parameter is ignored.
///
/// @return true on success, or false if the instance or cursor type
/// was invalid or if the image was too large.
static bool SetCursor(const InstanceHandle& instance,
PP_MouseCursor_Type type,
const ImageData& image = ImageData(),
const Point& hot_spot = Point(0, 0));
};
} // namespace pp
#endif // PPAPI_CPP_MOUSE_CURSOR_H_
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