GPC_MouseDevice.cpp

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/*
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL LICENSE BLOCK *****
 */

#include "GPC_MouseDevice.h"

GPC_MouseDevice::GPC_MouseDevice()
{

}
GPC_MouseDevice::~GPC_MouseDevice()
{

}

bool GPC_MouseDevice::IsPressed(SCA_IInputDevice::KX_EnumInputs inputcode)
{
    const SCA_InputEvent & inevent =  m_eventStatusTables[m_currentTable][inputcode];
    bool pressed = (inevent.m_status == SCA_InputEvent::KX_JUSTACTIVATED || 
        inevent.m_status == SCA_InputEvent::KX_ACTIVE);
    return pressed;
}


void GPC_MouseDevice::NextFrame()
{
    SCA_IInputDevice::NextFrame();
    
    // Convert just pressed events into regular (active) events
    int previousTable = 1-m_currentTable;
    for (int mouseevent= KX_BEGINMOUSE; mouseevent< KX_ENDMOUSEBUTTONS; mouseevent++) {
        SCA_InputEvent& oldevent = m_eventStatusTables[previousTable][mouseevent];
        if (oldevent.m_status == SCA_InputEvent::KX_JUSTACTIVATED ||
            oldevent.m_status == SCA_InputEvent::KX_ACTIVE) {
            m_eventStatusTables[m_currentTable][mouseevent] = oldevent;
            m_eventStatusTables[m_currentTable][mouseevent].m_status = SCA_InputEvent::KX_ACTIVE;
        }
    }
    for (int mousemove= KX_ENDMOUSEBUTTONS; mousemove< KX_ENDMOUSE; mousemove++) {
        SCA_InputEvent& oldevent = m_eventStatusTables[previousTable][mousemove];
        m_eventStatusTables[m_currentTable][mousemove] = oldevent;
        if (oldevent.m_status == SCA_InputEvent::KX_JUSTACTIVATED ||
            oldevent.m_status == SCA_InputEvent::KX_ACTIVE) {   
            m_eventStatusTables[m_currentTable][mousemove].m_status = SCA_InputEvent::KX_JUSTRELEASED;
        }
        else {
            if (oldevent.m_status == SCA_InputEvent::KX_JUSTRELEASED) {
                m_eventStatusTables[m_currentTable][mousemove].m_status = SCA_InputEvent::KX_NO_INPUTSTATUS ;
            }
        }
    }
}


bool GPC_MouseDevice::ConvertButtonEvent(TButtonId button, bool isDown)
{
    bool result = false;

    switch (button)
    {
    case buttonLeft:
        result = ConvertEvent(KX_LEFTMOUSE, isDown);
        break;
    case buttonMiddle:
        result = ConvertEvent(KX_MIDDLEMOUSE, isDown);
        break;
    case buttonRight:
        result = ConvertEvent(KX_RIGHTMOUSE, isDown);
        break;
    case buttonWheelUp:
        result = ConvertEvent(KX_WHEELUPMOUSE, isDown);
        break;
    case buttonWheelDown:
        result = ConvertEvent(KX_WHEELDOWNMOUSE, isDown);
        break;
    default:
        // Should not happen!
        break;
    }

    return result;
}

bool GPC_MouseDevice::ConvertButtonEvent(TButtonId button, bool isDown, int x, int y)
{
    // First update state tables for cursor move.
    bool result = ConvertMoveEvent(x, y);

    // Now update for button state.
    if (result) {
        result = ConvertButtonEvent(button, isDown);
    }

    return result;
}

bool GPC_MouseDevice::ConvertMoveEvent(int x, int y)
{
    bool result;

    // Convert to local coordinates?
    result = ConvertEvent(KX_MOUSEX, x);
    if (result) {
        result = ConvertEvent(KX_MOUSEY, y);
    }

    return result;
}


bool GPC_MouseDevice::ConvertEvent(KX_EnumInputs kxevent, int eventval)
{
    bool result = true;
    
    // Only process it, if it's a mouse event
    if (kxevent > KX_BEGINMOUSE && kxevent < KX_ENDMOUSE) {
        int previousTable = 1-m_currentTable;

        if (eventval > 0) {
            m_eventStatusTables[m_currentTable][kxevent].m_eventval = eventval;

            switch (m_eventStatusTables[previousTable][kxevent].m_status)
            {
            case SCA_InputEvent::KX_ACTIVE:
            case SCA_InputEvent::KX_JUSTACTIVATED:
                {
                    m_eventStatusTables[m_currentTable][kxevent].m_status = SCA_InputEvent::KX_ACTIVE;
                    break;
                }
            case SCA_InputEvent::KX_JUSTRELEASED:
                {
                    if ( kxevent > KX_BEGINMOUSEBUTTONS && kxevent < KX_ENDMOUSEBUTTONS)
                    {
                        m_eventStatusTables[m_currentTable][kxevent].m_status = SCA_InputEvent::KX_JUSTACTIVATED;
                    } else
                    {
                        m_eventStatusTables[m_currentTable][kxevent].m_status = SCA_InputEvent::KX_ACTIVE;
                        
                    }
                    break;
                }
            default:
                {
                    m_eventStatusTables[m_currentTable][kxevent].m_status = SCA_InputEvent::KX_JUSTACTIVATED;
                }
            }
            
        } 
        else {
            switch (m_eventStatusTables[previousTable][kxevent].m_status)
            {
            case SCA_InputEvent::KX_JUSTACTIVATED:
            case SCA_InputEvent::KX_ACTIVE:
                {
                    m_eventStatusTables[m_currentTable][kxevent].m_status = SCA_InputEvent::KX_JUSTRELEASED;
                    break;
                }
            default:
                {
                    m_eventStatusTables[m_currentTable][kxevent].m_status = SCA_InputEvent::KX_NO_INPUTSTATUS;
                }
            }
        }
    }
    else {
        result = false;
    }
    return result;
}