1 files changed, 670 insertions, 0 deletions

diff --git a/core/settings/citytime/zonemap.cpp b/core/settings/citytime/zonemap.cpp
new file mode 100644
index 0000000..337f4d9
--- a/dev/null
+++ b/core/settings/citytime/zonemap.cpp
@@ -0,0 +1,670 @@
+/**********************************************************************
+** Copyright (C) 2000 Trolltech AS.  All rights reserved.
+**
+** This file is part of Qtopia Environment.
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** See http://www.trolltech.com/gpl/ for GPL licensing information.
+**
+** Contact info@trolltech.com if any conditions of this licensing are
+** not clear to you.
+**
+**********************************************************************/
+
+#include "sun.h"
+#include "zonemap.h"
+
+#include <qpe/resource.h>
+#include <qpe/timestring.h>
+#include <qpe/qpeapplication.h>
+
+#include <qdatetime.h>
+#include <qfile.h>
+#include <qimage.h>
+#include <qlabel.h>
+#include <qlist.h>
+#include <qmessagebox.h>
+#include <qpixmap.h>
+#include <qpainter.h>
+#include <qregexp.h>
+#include <qtextstream.h>
+#include <qtimer.h>
+#include <qtoolbutton.h>
+
+#include <limits.h>
+
+// the map file...
+static const char strZONEINFO[] = "/usr/share/zoneinfo/zone.tab";
+static const char strMAP[] = "simple_grid_400";
+
+// the maximum distance we'll allow the pointer to be away from a city
+// and still show the city's time
+static const int iTHRESHOLD = 50000;
+
+// The label offset (how far away from pointer)
+static const int iLABELOFFSET = 8;
+
+// the size of the dot to draw, and where to start it
+static const int iCITYSIZE = 3;
+const int iCITYOFFSET = 2;
+
+// the darkening function
+static inline void darken( QImage *pImage, int start, int stop, int row );
+static void dayNight( QImage *pImage );
+
+ZoneField::ZoneField( const QString& strLine )
+{
+    // make a bunch of RegExp's to match the data from the line
+            QRegExp regCoord( "[-+][0-9]+" );// the latitude
+    QRegExp regCountry( "[A-Za-z]+/" ); // the country (not good enough)
+    QRegExp regCity( "[A-Za-z_-]*" ); // the city
+
+    int iStart,
+        iStop,
+        iLen,
+        tmp;
+    QString strTmp;
+    // we should be able to assume that the country code is always the first
+    // two chars, so just grap them and let it go...
+    strCountryCode = strLine.left( 2 );
+    iStart = regCoord.match( strLine, 0, &iLen );
+    if ( iStart >= 0 ) {
+        strTmp = strLine.mid( iStart, iLen );
+        tmp = strTmp.toInt();
+        // okay, there are two versions of the format, make a decision based on
+        // the size...
+        // Oh BTW, we are storing everything in seconds!
+        if ( iLen < 7 ) {
+            _y = tmp / 100;
+            _y *= 60;
+            _y += tmp % 100;
+            _y *= 60;
+        } else {
+            _y = tmp / 10000;
+            _y *= 60;
+            tmp %= 10000;
+            _y += tmp / 100;
+            _y *= 60;
+            tmp %= 100;
+            _y += tmp;
+        }
+    }
+    iStart = regCoord.match( strLine, iStart + iLen, &iLen );
+    if ( iStart >= 0 ) {
+        strTmp = strLine.mid( iStart, iLen );
+        tmp = strTmp.toInt();
+        if ( iLen < 8 ) {
+            _x = tmp / 100;
+            _x *= 60;
+            _x += tmp % 100;
+            _x *= 60;
+        } else {
+            _x = tmp / 10000;
+            _x *= 60;
+            tmp %= 10000;
+            _x += tmp / 100;
+            _x *= 60;
+            tmp %= 100;
+            _x += tmp;
+        }
+    }
+    iStart = regCountry.match( strLine, 0, &iLen );
+    // help with the shortcoming in 2.x regexp...
+    iStop = strLine.findRev( '/' );
+    if ( iStart >= 0 ) {
+        iLen = (iStop - iStart) + 1;
+        strCountry = strLine.mid( iStart, iLen );
+    }
+    // now match the city...
+    iStart = regCity.match( strLine, iStart + iLen, &iLen );
+    if ( iStart >= 0 ) {
+        strCity = strLine.mid( iStart, iLen );
+    }
+}
+
+void ZoneField::showStructure( void ) const
+{
+    qDebug( "Country: %s", strCountry.latin1() );
+    qDebug( "City: %s", strCity.latin1() );
+    qDebug( "x: %d", _x );
+    qDebug( "y: %d\n", _y );
+}
+
+ZoneMap::ZoneMap( QWidget *parent, const char* name )
+    : QScrollView( parent, name ),
+      pLast( 0 ),
+      pRepaint( 0 ),
+      ox( 0 ),
+      oy( 0 ),
+      drawableW( -1 ),
+      drawableH( -1 ),
+      bZoom( FALSE ),
+      bIllum( TRUE ),
+      cursor( 0 )
+{
+    viewport()->setFocusPolicy( StrongFocus );
+
+    // set mouse tracking so we can use the mouse move event
+    zones.setAutoDelete( true );
+    // get the map loaded
+    // just set the current image to point
+    pixCurr = new QPixmap();
+
+    QPixmap pixZoom = Resource::loadPixmap( "mag" );
+
+    cmdZoom = new QToolButton( this, "Zoom command" );
+    cmdZoom->setPixmap( pixZoom );
+    cmdZoom->setToggleButton( true );
+
+    cmdZoom->setSizePolicy( QSizePolicy( (QSizePolicy::SizeType)0,
+                            (QSizePolicy::SizeType)0,
+                            cmdZoom->sizePolicy().hasHeightForWidth() ) );
+    cmdZoom->setMaximumSize( cmdZoom->sizeHint() );
+    // probably don't need this, but just in case...
+    cmdZoom->move( width() - cmdZoom->width(), height() - cmdZoom->height() );
+
+
+    lblCity = new QLabel( tr( "CITY" ), this, "City Label" );
+    lblCity->setMinimumSize( lblCity->sizeHint() );
+    lblCity->setFrameStyle( QFrame::Plain | QFrame::Box );
+    lblCity->setBackgroundColor( yellow );
+    lblCity->hide();
+
+    // A timer to make sure the label gets hidden
+    tHide = new QTimer( this, "Label Timer" );
+    QObject::connect( tHide, SIGNAL( timeout() ),
+                      lblCity, SLOT( hide() ) );
+    QObject::connect( tHide, SIGNAL( timeout() ),
+                      this, SLOT( slotRedraw() ) );
+    QTimer *tUpdate = new QTimer( this, "Update Timer" );
+    QObject::connect( tUpdate, SIGNAL( timeout() ),
+                      this, SLOT( slotUpdate() ) );
+    QObject::connect( qApp, SIGNAL( timeChanged() ),
+                      this, SLOT( slotUpdate() ) );
+    QObject::connect( cmdZoom, SIGNAL( toggled( bool ) ),
+                      this, SLOT( slotZoom( bool ) ) );
+    QObject::connect( &norm, SIGNAL( signalNewPoint( const QPoint& ) ),
+                      this, SLOT( slotFindCity( const QPoint& ) ) );
+    QObject::connect( qApp, SIGNAL( clockChanged( bool ) ),
+                      this, SLOT( changeClock( bool ) ) );
+    // update the sun's movement every 5 minutes
+    tUpdate->start( 5 * 60 * 1000 );
+    // May as well read in the timezone information too...
+    readZones();
+}
+
+ZoneMap::~ZoneMap()
+{
+}
+
+void ZoneMap::readZones( void )
+{
+    QFile fZone( strZONEINFO );
+    if ( !fZone.open( IO_ReadOnly ) ) {
+        QMessageBox::warning (this,
+                tr( "Unable to Find Timezone Info" ),
+                tr( "<p>Unable to find any timezone information in %1" )
+                .arg( strZONEINFO ));
+        exit(-1);
+    } else {
+        QTextStream tZone( &fZone );
+        while ( !tZone.atEnd() ) {
+            QString strLine = tZone.readLine();
+            // only pass on lines that aren't comments
+            if ( strLine[0] != '#' ) {
+                zones.append( new ZoneField( strLine ) );
+            }
+        }
+        fZone.close();
+    }
+}
+
+void ZoneMap::viewportMousePressEvent( QMouseEvent* event )
+{
+    // add the mouse event into the normalizer, and get the average,
+    // pass it along
+    slotRedraw();
+    norm.start();
+    norm.addEvent( event->pos() );
+}
+
+void ZoneMap::viewportMouseMoveEvent( QMouseEvent* event )
+{
+    norm.addEvent( event->pos() );
+}
+
+void ZoneMap::viewportMouseReleaseEvent( QMouseEvent* )
+{
+    // get the averaged points in case a timeout hasn't occurred,
+    // more for "mouse clicks"
+    norm.stop();
+    if ( pLast != NULL ) {
+        emit signalTz( pLast->country(), pLast->city() );
+        pLast = NULL;
+    }
+    tHide->start( 2000, true );
+}
+
+void ZoneMap::keyPressEvent( QKeyEvent *ke )
+{
+    switch ( ke->key() ) {
+        case Key_Left:
+        case Key_Right:
+        case Key_Up:
+        case Key_Down: {
+                tHide->stop();
+                if ( !cursor )
+                    slotFindCity( QPoint( contentsWidth(), contentsHeight() ) / 2 );
+                ZoneField *city = findCityNear( cursor, ke->key() );
+                if ( city ) {
+                    cursor = city;
+                    int tmpx, tmpy;
+                    zoneToWin( cursor->x(), cursor->y(), tmpx, tmpy );
+                    ensureVisible( tmpx, tmpy );
+                    showCity( cursor );
+                    tHide->start( 3000, true );
+                }
+            }
+            break;
+
+        case Key_Space:
+        case Key_Enter:
+        case Key_Return:
+            if ( cursor ) {
+                emit signalTz( cursor->country(), cursor->city() );
+                tHide->start( 0, true );
+            }
+            break;
+    }
+}
+
+ZoneField *ZoneMap::findCityNear( ZoneField *city, int key )
+{
+    ZoneField *pZone;
+    ZoneField *pClosest = 0;
+    long ddist = LONG_MAX;
+
+    QListIterator<ZoneField> it( zones );
+    for (; it.current(); ++it) {
+        pZone = it.current();
+        long dx = (pZone->x() - city->x())/100;
+        long dy = (pZone->y() - city->y())/100;
+        switch ( key ) {
+            case Key_Right:
+            case Key_Left:
+                if ( key == Key_Left )
+                    dx = -dx;
+                if ( dx > 0 ) {
+                    long dist = QABS(dy)*4 + dx;
+                    if ( dist < ddist ) {
+                        ddist = dist;
+                        pClosest = pZone;
+                    }
+                }
+                break;
+            case Key_Down:
+            case Key_Up:
+                if ( key == Key_Down )
+                    dy = -dy;
+                if ( dy > 0 ) {
+                    long dist = QABS(dx)*4 + dy;
+                    if ( dist < ddist ) {
+                        ddist = dist;
+                        pClosest = pZone;
+                    }
+                }
+                break;
+        }
+    }
+
+    return pClosest;
+}
+
+void ZoneMap::slotFindCity( const QPoint &pos )
+{
+    lblCity->hide();
+    // given coordinates on the screen find the closest city and display the
+    // label close to it
+    int tmpx, tmpy, x, y;
+    long lDistance,
+         lClosest;
+    ZoneField *pZone,
+              *pClosest;
+
+    if ( tHide->isActive() ) {
+        tHide->stop();
+    }
+    viewportToContents(pos.x(), pos.y(), tmpx, tmpy);
+    winToZone( tmpx, tmpy, x, y );
+    // Find city alogorithim: start out at an (near) infinite distance away and
+    // then find the closest city, (similar to the Z-buffer technique, I guess)
+    // the only problem is that this is all done with doubles, but I don't know
+    // another way to do it at the moment.  Another problem is a linked list is
+    // used obviously something indexed would help
+    QListIterator<ZoneField> it( zones );
+    pClosest = 0;
+    lClosest = LONG_MAX;
+    for (; it.current(); ++it) {
+        pZone = it.current();
+        // use the manhattenLength, a good enough of an appoximation here
+        lDistance = QABS( x - pZone->x() ) + QABS( y - pZone->y() );
+        // first to zero wins!
+        if ( lDistance < lClosest ) {
+            lClosest = lDistance;
+            pClosest = pZone;
+        }
+    }
+
+    // Okay, we found the closest city, but it might still be too far away.
+    if ( lClosest <= iTHRESHOLD ) {
+        showCity( pClosest );
+        cursor = pClosest;
+    }
+}
+
+void ZoneMap::showCity( ZoneField *city )
+{
+    pLast = city;
+    // we'll use city and country a couple of times, get them to save some
+    // time
+    QString strCity = pLast->city();
+    QString strCountry = pLast->country();
+    // Display the time at this location by setting the environment timezone
+    // getting the current time [there] and then swapping back the variable
+    // so no one notices...
+    QString strSave;
+    char *p = getenv( "TZ" );
+    if ( p ) {
+        strSave = p;
+    }
+    // set the timezone :)
+    setenv( "TZ", strCountry + strCity, true );
+    lblCity->setText( strCity.replace( QRegExp("_"), " ") + "\n" +
+                      TimeString::shortTime( ampm ) );
+    lblCity->setMinimumSize( lblCity->sizeHint() );
+    // undue our damage...
+    unsetenv( "TZ" );
+    if ( p )
+        setenv( "TZ", strSave, true );
+    // Now decide where to move the label, x & y can be reused
+    int tmpx, tmpy, x, y;
+    zoneToWin( pLast->x(), pLast->y(), tmpx, tmpy );
+    contentsToViewport(tmpx, tmpy, x, y);
+    if ( lblCity->width() > drawableW - x ) {
+        // oops... try putting it on the right
+        x = x - lblCity->width() - iLABELOFFSET;
+    } else {
+        // the default...
+        x += iLABELOFFSET;
+    }
+    if ( lblCity->height() > drawableH - y ) {
+        // move it up...
+        y = y - lblCity->height() - iLABELOFFSET;
+    } else if ( y < 0 ) {
+        // the city is actually off the screen...
+        // this only happens on the a zoom when you are near the top,
+        // a quick workaround..
+        y = iLABELOFFSET;
+    } else {
+        // the default
+        y += iLABELOFFSET;
+    }
+
+    // draw in the city and the label
+    if ( pRepaint ) {
+        int repx,
+            repy;
+        zoneToWin( pRepaint->x(), pRepaint->y(), repx, repy );
+        updateContents( repx - iCITYOFFSET, repy - iCITYOFFSET,
+                        iCITYSIZE, iCITYSIZE );
+    }
+    updateContents( tmpx - iCITYOFFSET, tmpy - iCITYOFFSET, iCITYSIZE,
+                    iCITYSIZE );
+    pRepaint = pLast;
+
+    lblCity->move( x, y );
+    lblCity->show();
+}
+
+void ZoneMap::resizeEvent( QResizeEvent *e )
+{
+    // keep the zoom button down in the corner
+    QSize _size = e->size();
+    cmdZoom->move( _size.width() - cmdZoom->width(),
+                   _size.height() - cmdZoom->height() );
+    if ( !bZoom ) {
+        drawableW = width() - 2 * frameWidth();
+        drawableH = height() - 2 * frameWidth();
+        makeMap( drawableW, drawableH );
+        resizeContents( drawableW, drawableH );
+    }
+}
+
+void ZoneMap::showZones( void ) const
+{
+    // go through the zones in the list and just display the values...
+    QListIterator<ZoneField> itZone( zones );
+    for ( itZone.toFirst(); itZone.current(); ++itZone ) {
+        ZoneField *pZone = itZone.current();
+        pZone->showStructure();
+    }
+}
+
+void ZoneMap::drawCities( QPainter *p )
+{
+    int x,
+        y,
+        j;
+    // draw in the cities
+    // for testing only as when you put it
+    // on the small screen it looks awful and not to mention useless
+    p->setPen( red );
+    QListIterator<ZoneField> itZone( zones );
+    for ( itZone.toFirst(), j = 0; itZone.current(); ++itZone, j++ ) {
+        ZoneField *pZone = itZone.current();
+        zoneToWin( pZone->x(), pZone->y(), x, y );
+        if ( x > wImg )
+            x = x - wImg;
+        p->drawRect( x - iCITYOFFSET, y - iCITYOFFSET, iCITYSIZE, iCITYSIZE);
+    }
+}
+
+static void dayNight(QImage *pImage)
+{
+    // create a mask the functions from sun.h
+    double dJulian,
+           dSunRad,
+           dSunDecl,
+           dSunRadius,
+           dSunLong;
+    int wImage = pImage->width(),
+        hImage = pImage->height(),
+        iStart,
+        iStop,
+        iMid,
+        relw,
+        i;
+    short wtab[ wImage ];
+    time_t tCurrent;
+    struct tm *pTm;
+
+    // get the position of the sun bassed on our current time...
+    tCurrent = time( NULL );
+    pTm = gmtime( &tCurrent );
+    dJulian = jtime( pTm );
+    sunpos( dJulian, 0, &dSunRad, &dSunDecl, &dSunRadius, &dSunLong );
+
+    // now get the projected illumination
+    projillum( wtab, wImage, hImage, dSunDecl );
+    relw = wImage - int( wImage * 0.0275 );
+
+    // draw the map, keeping in mind that we may go too far off the map...
+    iMid = ( relw * ( 24*60 - pTm->tm_hour * 60 - pTm->tm_min ) ) / ( 24*60 );
+
+    for ( i = 0; i < hImage; i++ ) {
+        if ( wtab[i] > 0 ) {
+            iStart = iMid - wtab[i];
+            iStop = iMid + wtab[i];
+            if ( iStart < 0 ) {
+                darken( pImage, iStop, wImage + iStart, i );
+            } else if ( iStop > wImage ) {
+                darken( pImage, iStop - wImage, iStart, i );
+            } else {
+                darken( pImage, 0, iStart, i );
+                darken( pImage, iStop, wImage, i );
+            }
+        } else {
+            darken( pImage, 0, wImage, i );
+        }
+    }
+}
+
+static inline void darken( QImage *pImage, int start, int stop, int row )
+{
+    int colors,
+        j;
+    uchar *p;
+
+    // assume that the image is similar to the one we have...
+    colors = pImage->numColors() / 2;
+
+    p = pImage->scanLine( row );
+    for ( j = start; j <= stop; j++ ) {
+        if ( p[j] < colors )
+            p[j] += colors;
+    }
+}
+
+void ZoneMap::makeMap( int w, int h )
+{
+    QImage imgOrig = Resource::loadImage( strMAP );
+    if ( imgOrig.isNull() ) {
+        QMessageBox::warning( this,
+                              tr( "Couldn't Find Map" ),
+                              tr( "<p>Couldn't load map: %1, exiting")
+                              .arg( strMAP ) );
+        exit(-1);
+    }
+
+    // set up the color table for darkening...
+    imgOrig = imgOrig.convertDepth( 8 );
+    int numColors = imgOrig.numColors();
+    // double the colors
+    imgOrig.setNumColors( 2 * numColors );
+    // darken the new ones...
+    for ( int i = 0; i < numColors; i++ ) {
+        QRgb rgb = imgOrig.color( i );
+        imgOrig.setColor ( i + numColors, qRgb(  2 * qRed( rgb ) / 3,
+                           2 * qGreen( rgb ) / 3, 2 * qBlue( rgb ) / 3 ) );
+    }
+
+    // else go one with making the map...
+    if ( bIllum ) {
+        // do a daylight mask
+        dayNight(&imgOrig);
+    }
+    // redo the width and height
+    wImg = w;
+    hImg = h;
+    ox = ( wImg / 2 ) - int( wImg * 0.0275 );
+    oy = hImg / 2;
+    pixCurr->convertFromImage( imgOrig.smoothScale(w, h),
+                               QPixmap::ThresholdDither );
+}
+
+void ZoneMap::drawCity( QPainter *p, const ZoneField *pCity )
+{
+    int x,
+        y;
+
+    p->setPen( red );
+    zoneToWin( pCity->x(), pCity->y(), x, y );
+    p->drawRect( x - iCITYOFFSET, y - iCITYOFFSET, iCITYSIZE, iCITYSIZE );
+}
+
+void ZoneMap::drawContents( QPainter *p, int cx, int cy, int cw, int ch )
+{
+    // if there is a need to resize, then do it...
+    // get our drawable area
+    drawableW = width() - 2 * frameWidth();
+    drawableH = height() - 2 * frameWidth();
+
+    int pixmapW = pixCurr->width(),
+        pixmapH = pixCurr->height();
+    if ( !bZoom &&  ( ( pixmapW != drawableW ) ||
+                      ( pixmapH != drawableH) ) ) {
+        makeMap( drawableW, drawableH );
+    }
+
+    // taken from the scrollview example...
+    int rowheight = pixCurr->height();
+    int toprow = cy / rowheight;
+    int bottomrow = ( cy + ch + rowheight - 1 ) / rowheight;
+    int colwidth = pixCurr->width();
+    int leftcol= cx / colwidth;
+    int rightcol= ( cx + cw + colwidth - 1 ) / colwidth;
+    for ( int r = toprow; r <= bottomrow; r++ ) {
+        int py = r * rowheight;
+        for ( int c = leftcol; c <= rightcol; c++ ) {
+            int px = c * colwidth;
+            p->drawPixmap( px, py, *pixCurr );
+        }
+    }
+
+    // Draw that city!
+    if ( pLast )
+        drawCity( p, pLast );
+}
+
+void ZoneMap::slotZoom( bool setZoom )
+{
+    bZoom = setZoom;
+    if ( bZoom ) {
+        makeMap( 2 * wImg , 2 * hImg );
+        resizeContents( wImg, hImg );
+    } else {
+        makeMap( drawableW, drawableH );
+        resizeContents( drawableW, drawableH );
+    }
+}
+
+void ZoneMap::slotIllum( bool setIllum )
+{
+    bIllum = !setIllum;
+    // make the map...
+    makeMap( pixCurr->width(), pixCurr->height() );
+    updateContents( 0, 0, wImg, hImg );
+}
+
+void ZoneMap::slotUpdate( void )
+{
+    // recalculate the light, most people will never see this,
+    // but it is good to be complete
+    makeMap ( pixCurr->width(), pixCurr->height() );
+    updateContents( contentsX(), contentsY(), drawableW, drawableH );
+}
+
+void ZoneMap::slotRedraw( void )
+{
+    // paint over that pesky city...
+    int x,
+        y;
+    if ( pRepaint ) {
+        pLast = 0;
+        zoneToWin(pRepaint->x(), pRepaint->y(), x, y);
+        updateContents( x - iCITYOFFSET, y - iCITYOFFSET, iCITYSIZE, iCITYSIZE);
+        pRepaint = 0;
+    }
+}
+
+void ZoneMap::changeClock( bool whichClock )
+{
+    ampm = whichClock;
+}