// The contents of this file are subject to the BOINC Public License
// Version 1.0 (the "License"); you may not use this file except in
// compliance with the License. You may obtain a copy of the License at
// http://boinc.berkeley.edu/license_1.0.txt
//
// Software distributed under the License is distributed on an "AS IS"
// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
// License for the specific language governing rights and limitations
// under the License.
//
// The Original Code is the Berkeley Open Infrastructure for Network Computing.
//
// The Initial Developer of the Original Code is the SETI@home project.
// Portions created by the SETI@home project are Copyright (C) 2002
// University of California at Berkeley. All Rights Reserved.
//
// Contributor(s):
//

#ifndef _SS_LOGIC_
#define _SS_LOGIC_

#ifndef _WIN32
#include <ctime>
#endif

#define SS_STATUS_ENABLED                    1
#define SS_STATUS_RESTARTREQUEST             2
#define SS_STATUS_BLANKED                    3
#define SS_STATUS_BOINCSUSPENDED             4
#define SS_STATUS_NOTGRAPHICSCAPABLE         5
#define SS_STATUS_NOAPPSEXECUTING            6
#define SS_STATUS_NOGRAPHICSAPPSEXECUTING    7
#define SS_STATUS_QUIT                       8

class SS_LOGIC {
public:

    SS_LOGIC();

    void start_ss(GRAPHICS_MSG&, double blank_time);
    void stop_ss();
    void poll();
    void reset();
    int  get_ss_status() { return ss_status; };

private:
    double blank_time;          // 0 or time to blank screen
    double ack_deadline;        // when to give up on graphics app
    int  ss_status;             // the status of the screensaver from the core
                                // client perspective.
    bool do_ss;                 // true if we're acting like a screensaver

// invariants
//
// do_boinc_logo_ss and do_blank are not both true
// at most one app has request_mode = FULLSCREEN
// pre-ss mode of all apps is not FULLSCREEN
};

#endif