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bmsgwin.cpp

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//**********************************************************************
//                                                                     *
//    Filename:      bmsgwin.cpp                                       *
//    Date:          30 Mar 2002                                       *
//    File Version:  1                                                 *
//                                                                     *
//    Description:   Window to display list of signalmen from which    *
//                   the user makes a single selection.                *
//                                                                     *
//    Author:        Chris White (whitecf@bcs.org.uk)                  *
//    Company:       Monitor Computing Services Ltd.                   *
//                                                                     *
//**********************************************************************
//                                                                     *
//    Copyright (C) 2002  Monitor Computing Services Ltd.              *
//                                                                     *
//    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 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 (http://www.gnu.org/copyleft/gpl.html) along with this   *
//    program; if not, write to:                                       *
//       The Free Software Foundation Inc.,                            *
//       59 Temple Place - Suite 330,                                  *
//       Boston, MA  02111-1307,                                       *
//       USA.                                                          *
//                                                                     *
//**********************************************************************
//                                                                     *
//    Notes:                                                           *
//                                                                     *
//**********************************************************************

#define Uses_TButton
#define Uses_TEvent
#define Uses_TRect
#define Uses_TScrollBar

#include "sgnlman.h"
#include "sgmlist.h"
#include "mytrace.h"

#include "bmsgwin.h"


using namespace Monitor::BellMaster;



SignalmanWindow::ListView::ListView(const SignalmanList&    newSignalmen,
                                    const TRect&            bounds,
                                    TScrollBar              *aVScrollBar) :
    TListViewer(bounds, 1, 0, aVScrollBar), signalmen(newSignalmen)
{
    _USEMYTRACE_("SignalmanWindow::ListView::ListView")

    growMode = gfGrowHiX | gfGrowHiY;
    options = options | ofFramed;
    setRange(signalmen.size());
}



void
SignalmanWindow::ListView::getText(char     *dest,
                                     short    item,
                                     short    maxLen)
{
    _USEMYTRACE_("SignalmanWindow::ListView::getText")

    dest[0] = '\0';

    if ((0 <= item) && (signalmen.size() > item))
    {
        strncpy(dest, signalmen[item].getName().c_str(), maxLen);
        dest[maxLen] = '\0';
    }
}



SignalmanWindow::SignalmanWindow(const SignalmanList&    newSignalmen,
                                     TRect&                  bounds) :
    TDialog(bounds, "Select Signalman"),
    TWindowInit(&SignalmanWindow::initFrame),
    listView(0)
{
    _USEMYTRACE_("SignalmanWindow::SignalmanWindow")

    options |= ofCentered;

    bounds = getExtent();

    TRect    scrollBarBounds(bounds.b.x - 1,
                             bounds.a.y + 1,
                             bounds.b.x,
                             bounds.b.y - 4);

    TScrollBar    *vScrollBar = new TScrollBar(scrollBarBounds);

    if (vScrollBar == 0)
    {
        cerr << "vScrollBar init error" << endl;
        exit(1);
    }

    vScrollBar->options |= ofPostProcess;
    insert(vScrollBar);

    TRect    listViewBounds(bounds.a.x + 1,
                            bounds.a.y + 1,
                            bounds.b.x - 1,
                            bounds.b.y - 4);
    listView = new ListView(newSignalmen, listViewBounds, vScrollBar);

    insert(listView);

    int    midX         = (bounds.b.x - bounds.a.x) / 2;
    int    buttonBottom = bounds.b.y - 1;
    int    buttonTop    = buttonBottom - 2;

    insert(new TButton(TRect(midX - 15, buttonTop, midX - 5, buttonBottom),
                       "~S~elect",
                       cmOK,
                       bfDefault));

    insert(new TButton(TRect(midX + 5, buttonTop, midX + 15, buttonBottom),
                       "~C~ancel",
                       cmCancel,
                       bfNormal));
}



void
SignalmanWindow::handleEvent(TEvent&    event)
{
    if ((event.what == evBroadcast) &&
        (event.message.command == cmListItemSelected))
    {
        event.what            = evCommand;
        event.message.command = cmOK;
    }

    TDialog::handleEvent(event);
}



Signalman*
SignalmanWindow::getSelectedSignalman()
{
    Signalman    *selectedSignalman = 0;

    if (listView)
    {
        int    codeI = listView->focused;

        if ((0 <= codeI) && (listView->signalmen.size() > codeI))
        {
            selectedSignalman = &(listView->signalmen[codeI]);
        }
    }

    return selectedSignalman;
}

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