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/* Copyright (C) 2007-2008 The Android Open Source Project
**
** This software is licensed under the terms of the GNU General Public
** License version 2, as published by the Free Software Foundation, and
** may be copied, distributed, and modified under those terms.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
*/
#ifndef _ANDROID_SKIN_TRACKBALL_H
#define _ANDROID_SKIN_TRACKBALL_H
#include <SDL.h>
#include "skin_rect.h"
typedef struct SkinTrackBall SkinTrackBall;
typedef struct SkinTrackBallParameters
{
int diameter;
int ring;
unsigned ball_color;
unsigned dot_color;
unsigned ring_color;
}
SkinTrackBallParameters;
extern SkinTrackBall* skin_trackball_create ( SkinTrackBallParameters* params );
extern void skin_trackball_rect ( SkinTrackBall* ball, SDL_Rect* rect );
extern int skin_trackball_contains( SkinTrackBall* ball, int x, int y );
extern int skin_trackball_move ( SkinTrackBall* ball, int dx, int dy );
extern void skin_trackball_refresh ( SkinTrackBall* ball );
extern void skin_trackball_draw ( SkinTrackBall* ball, int x, int y, SDL_Surface* dst );
extern void skin_trackball_destroy ( SkinTrackBall* ball );
/* this sets the rotation that will be applied to mouse events sent to the system */
extern void skin_trackball_set_rotation( SkinTrackBall* ball, SkinRotation rotation);
#endif /* END */
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