kstars

infoboxes.cpp

00001 /***************************************************************************
00002                           infoboxes.cpp  -  description
00003                              -------------------
00004     begin                : Wed Jun 5 2002
00005     copyright            : (C) 2002 by Jason Harris
00006     email                : jharris@30doradus.org
00007  ***************************************************************************/
00008 
00009 /***************************************************************************
00010  *                                                                         *
00011  *   This program is free software; you can redistribute it and/or modify  *
00012  *   it under the terms of the GNU General Public License as published by  *
00013  *   the Free Software Foundation; either version 2 of the License, or     *
00014  *   (at your option) any later version.                                   *
00015  *                                                                         *
00016  ***************************************************************************/
00017 
00018 #include <kglobal.h>
00019 #include <kdebug.h>
00020 //#include <qpen.h>
00021 #include <qpainter.h>
00022 
00023 #include "infoboxes.h"
00024 #include "kstarsdatetime.h"
00025 #include "dms.h"
00026 #include "geolocation.h"
00027 #include "skypoint.h"
00028 
00029 InfoBoxes::InfoBoxes( int w, int h, QPoint tp, bool tshade,
00030         QPoint gp, bool gshade, QPoint fp, bool fshade,
00031         QColor colorText, QColor colorGrab, QColor colorBG ) :
00032         boxColor(colorText), grabColor(colorGrab), bgColor(colorBG),
00033         GeoBox(0), FocusBox(0), TimeBox(0)
00034 {
00035 
00036     int tx = tp.x();
00037     int ty = tp.y();
00038     int gx = gp.x();
00039     int gy = gp.y();
00040     int fx = fp.x();
00041     int fy = fp.y();
00042 
00043     GrabbedBox = 0;
00044     GrabPos = QPoint( 0, 0 );
00045     Visible = true;
00046 
00047     Width = w;
00048     Height = h;
00049 
00050 //Create infoboxes
00051     GeoBox   = new InfoBox( gx, gy, gshade, "", "" );
00052     TimeBox  = new InfoBox( tx, ty, tshade, "", "", "" );
00053     FocusBox = new InfoBox( fx, fy, fshade, "", "", "" );
00054 
00055     fixCollisions( TimeBox );
00056     fixCollisions( FocusBox );
00057 
00058     resize( w, h );
00059 }
00060 
00061 InfoBoxes::InfoBoxes( int w, int h, int tx, int ty, bool tshade,
00062         int gx, int gy, bool gshade, int fx, int fy, bool fshade,
00063         QColor colorText, QColor colorGrab, QColor colorBG ) :
00064         boxColor(colorText), grabColor(colorGrab), bgColor(colorBG) {
00065 
00066     GrabbedBox = 0;
00067     GrabPos = QPoint( 0, 0 );
00068     Visible = true;
00069 
00070     Width = w;
00071     Height = h;
00072 
00073 //Create infoboxes
00074     GeoBox   = new InfoBox( gx, gy, gshade, "", "" );
00075     TimeBox  = new InfoBox( tx, ty, tshade, "", "", "" );
00076     FocusBox = new InfoBox( fx, fy, fshade, "", "", "" );
00077 
00078     fixCollisions( TimeBox );
00079     fixCollisions( FocusBox );
00080 
00081     resize( w, h );
00082 }
00083 
00084 InfoBoxes::~InfoBoxes(){
00085     delete FocusBox;
00086     delete TimeBox;
00087     delete GeoBox;
00088 }
00089 
00090 void InfoBoxes::resize( int w, int h ) {
00091     Width = w;
00092     Height = h;
00093     checkBorders(false);
00094 }
00095 
00096 void InfoBoxes::drawBoxes( QPainter &p, QColor FGColor, QColor grabColor,
00097         QColor BGColor, unsigned int BGMode ) {
00098     if ( isVisible() ) {
00099         if ( GeoBox->isVisible() ) {
00100             p.setPen( QPen( FGColor ) );
00101             if ( GrabbedBox == 1 ) {
00102                 p.setPen( QPen( grabColor ) );
00103                 p.drawRect( GeoBox->x(), GeoBox->y(), GeoBox->width(), GeoBox->height() );
00104             }
00105             GeoBox->draw( p, BGColor, BGMode );
00106         }
00107 
00108         if ( TimeBox->isVisible() ) {
00109             p.setPen( QPen( FGColor ) );
00110             if ( GrabbedBox == 2 ) {
00111                 p.setPen( QPen( grabColor ) );
00112                 p.drawRect( TimeBox->x(), TimeBox->y(), TimeBox->width(), TimeBox->height() );
00113             }
00114             TimeBox->draw( p, BGColor, BGMode );
00115         }
00116 
00117         if ( FocusBox->isVisible() ) {
00118             p.setPen( QPen( FGColor ) );
00119             if ( GrabbedBox == 3 ) {
00120                 p.setPen( QPen( grabColor ) );
00121                 p.drawRect( FocusBox->x(), FocusBox->y(), FocusBox->width(), FocusBox->height() );
00122             }
00123             FocusBox->draw( p, BGColor, BGMode );
00124         }
00125     }
00126 }
00127 
00128 bool InfoBoxes::grabBox( QMouseEvent *e ) {
00129     if ( GeoBox->rect().contains( e->pos() ) ) {
00130         GrabbedBox = 1;
00131         GrabPos.setX( e->x() - GeoBox->x() );
00132         GrabPos.setY( e->y() - GeoBox->y() );
00133         return true;
00134     } else if ( TimeBox->rect().contains( e->pos() ) ) {
00135         GrabbedBox = 2;
00136         GrabPos.setX( e->x() - TimeBox->x() );
00137         GrabPos.setY( e->y() - TimeBox->y() );
00138         return true;
00139     } else if ( FocusBox->rect().contains( e->pos() ) ) {
00140         GrabbedBox = 3;
00141         GrabPos.setX( e->x() - FocusBox->x() );
00142         GrabPos.setY( e->y() - FocusBox->y() );
00143         return true;
00144     } else {
00145         GrabbedBox = 0; //this is probably redundant, because mouseRelease should call unGrabBox()...
00146         return false;
00147     }
00148 }
00149 
00150 bool InfoBoxes::unGrabBox( void ) {
00151     if ( GrabbedBox ) {
00152         GrabbedBox = 0;
00153         checkBorders();
00154         return true;
00155     } else {
00156         return false;
00157     }
00158 }
00159 
00160 bool InfoBoxes::dragBox( QMouseEvent *e ) {
00161     switch( GrabbedBox ) {
00162         case 1: //GeoBox
00163             GeoBox->move( e->x() - GrabPos.x(), e->y() - GrabPos.y() );
00164             fixCollisions( GeoBox );
00165             return true;
00166             break;
00167         case 2: //TimeBox
00168             TimeBox->move( e->x() - GrabPos.x(), e->y() - GrabPos.y() );
00169             fixCollisions( TimeBox );
00170             return true;
00171             break;
00172         case 3: //FocusBox
00173             FocusBox->move( e->x() - GrabPos.x(), e->y() - GrabPos.y() );
00174             fixCollisions( FocusBox );
00175             return true;
00176             break;
00177         default: //no box is grabbed; return false
00178             return false;
00179     }
00180 }
00181 
00182 bool InfoBoxes::shadeBox( QMouseEvent *e ) {
00183     if ( GeoBox->rect().contains( e->pos() ) ) {
00184         GeoBox->toggleShade();
00185         if ( GeoBox->rect().bottom() > height() ) GeoBox->move( GeoBox->x(), height() - GeoBox->height() );
00186         if ( GeoBox->rect().right() > width() ) GeoBox->move( width() - GeoBox->width(), GeoBox->y() );
00187         if ( GeoBox->anchorBottom() ) GeoBox->move( GeoBox->x(), height() - GeoBox->height() );
00188         if ( GeoBox->anchorRight() ) GeoBox->move( width() - GeoBox->width(), GeoBox->y() );
00189         fixCollisions( TimeBox );
00190         fixCollisions( FocusBox );
00191         return true;
00192     } else if ( TimeBox->rect().contains( e->pos() ) ) {
00193         TimeBox->toggleShade();
00194         if ( TimeBox->rect().bottom() > height() ) TimeBox->move( TimeBox->x(), height() - TimeBox->height() );
00195         if ( TimeBox->rect().right() > width() ) TimeBox->move( width() - TimeBox->width(), TimeBox->y() );
00196         if ( TimeBox->anchorBottom() ) TimeBox->move( TimeBox->x(), height() - TimeBox->height() );
00197         if ( TimeBox->anchorRight() ) TimeBox->move( width() - TimeBox->width(), TimeBox->y() );
00198         fixCollisions( GeoBox );
00199         fixCollisions( FocusBox );
00200         return true;
00201     } else if ( FocusBox->rect().contains( e->pos() ) ) {
00202         FocusBox->toggleShade();
00203         if ( FocusBox->rect().bottom() > height() ) FocusBox->move( FocusBox->x(), height() - FocusBox->height() );
00204         if ( FocusBox->rect().right() > width() ) FocusBox->move( width() - FocusBox->width(), FocusBox->y() );
00205         if ( FocusBox->anchorBottom() ) FocusBox->move( FocusBox->x(), height() - FocusBox->height() );
00206         if ( FocusBox->anchorRight() ) FocusBox->move( width() - FocusBox->width(), FocusBox->y() );
00207         fixCollisions( TimeBox );
00208         fixCollisions( GeoBox );
00209         return true;
00210     }
00211     return false;
00212 }
00213 
00214 bool InfoBoxes::fixCollisions( InfoBox *target ) {
00215     int dLeft(0), dRight(0), dUp(0), dDown(0);
00216     QRect area = QRect( 0, 0, Width, Height );
00217     QRect t = target->rect();
00218     QRect Box1, Box2;
00219     
00220 //Set Box1 and Box2 to the rects of the other two InfoBoxes, unless
00221 //they are not visible (if so, set a null QRect)
00222     if ( target == GeoBox ) {
00223         if ( FocusBox->isVisible() ) Box1 = FocusBox->rect();
00224         else Box1 = QRect(0,0,0,0);
00225 
00226         if ( TimeBox->isVisible() ) Box2 = TimeBox->rect();
00227         else Box2 = QRect(0,0,0,0);
00228 
00229     } else if ( target == FocusBox ) {
00230         if ( GeoBox->isVisible() ) Box1 = GeoBox->rect();
00231         else Box1 = QRect(0,0,0,0);
00232 
00233         if ( TimeBox->isVisible() ) Box2 = TimeBox->rect();
00234         else Box2 = QRect(0,0,0,0);
00235 
00236     } else if ( target == TimeBox ) {
00237         if ( FocusBox->isVisible() ) Box1 = FocusBox->rect();
00238         else Box1 = QRect(0,0,0,0);
00239 
00240         if ( GeoBox->isVisible() ) Box2 = GeoBox->rect();
00241         else Box2 = QRect(0,0,0,0);
00242 
00243     } else { return false; } //none of the Boxes match target!
00244 
00245 //Shrink Box1 and Box2 by one pixel in each direction.  This will make the
00246 //Edges of adjacent boxes line up more nicely.
00247     if ( Box1.width() ) Box1.setCoords( Box1.left()+1, Box1.top()+1, Box1.right()-1, Box1.bottom()-1 );
00248     if ( Box2.width() ) Box2.setCoords( Box2.left()+1, Box2.top()+1, Box2.right()-1, Box2.bottom()-1 );
00249 
00250 //First, make sure target box is within area rect.
00251     if ( ! area.contains( t ) ) {
00252 /*      if ( t.x() < area.x() ) target->move( area.x(), t.y() );
00253         if ( t.y() < area.y() ) target->move( t.x(), area.y() );
00254         if ( t.right() > area.right() ){ target->move( area.right() - t.width(), t.y() ); }
00255         if ( t.bottom() > area.bottom() ) target->move( t.x(), area.bottom() - t.height() );*/
00256 
00257         int x = t.x(), y = t.y();
00258         
00259         if ( t.x() < area.x() ) x = area.x();
00260         if ( t.y() < area.y() ) y = area.y();
00261         if ( t.right() > area.right() ) x = area.right() - t.width();
00262         if ( t.bottom() > area.bottom() ) y = area.bottom() - t.height();
00263         target->move(x,y);
00264 
00265         //Reset t
00266         t = target->rect();
00267     }
00268 
00269     QRect upRect = t;
00270     QRect downRect = t;
00271     QRect leftRect = t;
00272     QRect rightRect = t;
00273 
00274 //Fix collisions
00275     if ( t.intersects( Box1 ) || t.intersects( Box2 ) ) {
00276         //move t to the left one pixel at a time until there is no
00277         //intersection with Box1 or Box2.
00278         while ( leftRect.intersects( Box1 ) || leftRect.intersects( Box2 ) ) {
00279             ++dLeft;
00280             leftRect.moveTopLeft( QPoint( t.x() - dLeft, t.y() ) );
00281         }
00282         //If leftRect is outside area, set dLeft to a nonsense large value
00283         if ( !area.contains( leftRect ) ) { dLeft = 100000; }
00284         //repeat for right, up and down directions.
00285         while ( rightRect.intersects( Box1 ) || rightRect.intersects( Box2 ) ) {
00286             ++dRight;
00287             rightRect.moveTopLeft( QPoint( t.x() + dRight, t.y() ) );
00288         }
00289         if ( !area.contains( rightRect ) ) { dRight = 100000; }
00290 
00291         while ( upRect.intersects( Box1 ) || upRect.intersects( Box2 ) ) {
00292             ++dUp;
00293             upRect.moveTopLeft( QPoint( t.x(), t.y() - dUp ) );
00294         }
00295         if ( !area.contains( upRect ) ) { dUp = 100000; }
00296 
00297         while ( downRect.intersects( Box1 ) || downRect.intersects( Box2 ) ) {
00298             ++dDown;
00299             downRect.moveTopLeft( QPoint( t.x(), t.y() + dDown ) );
00300         }
00301         if ( !area.contains( downRect ) ) { dDown = 100000; }
00302 
00303 
00304         //find the smallest displacement, and move the target box there.
00305         //if the smallest displacement is 100000, then the function has failed
00306         //to find any legal position; return false.
00307         int dmin = dLeft;
00308         if ( dRight < dmin ) dmin = dRight;
00309         if ( dDown < dmin ) dmin = dDown;
00310         if ( dUp < dmin ) dmin = dUp;
00311 
00312         if ( dmin == 100000 ) { return false; }
00313         else if ( dmin == dLeft ) {
00314             target->move( leftRect.x(), leftRect.y() );
00315         } else if ( dmin == dRight ) {
00316             target->move( rightRect.x(), rightRect.y() );
00317         } else if ( dmin == dUp ) {
00318             target->move( upRect.x(), upRect.y() );
00319         } else if ( dmin == dDown ) {
00320             target->move( downRect.x(), downRect.y() );
00321         }
00322     }
00323     else  // no intersection with other boxes
00324         return true;
00325 
00326     //Set Anchor flags based on new position
00327     if ( target->rect().right() >= width()-2 ) target->setAnchorRight( true );
00328     else target->setAnchorRight( false ); 
00329     if ( target->rect().bottom() >= height()-2 ) target->setAnchorBottom(true);
00330     else target->setAnchorBottom(false);
00331 
00332     //Final check to see if we're still inside area (we may not be if target
00333     //is bigger than area)
00334     if ( area.contains( target->rect() ) ) return true;
00335     else return false;
00336 }
00337 
00338 bool InfoBoxes::timeChanged( const KStarsDateTime &ut, const KStarsDateTime &lt, dms *lst ) {
00339     QString ot1 = TimeBox->text1();
00340     QString ot2 = TimeBox->text2();
00341     QString ot3 = TimeBox->text3();
00342     
00343     TimeBox->setText1( i18n( "Local Time", "LT: " ) + lt.time().toString()
00344         + "   " + lt.date().toString( "%d %b %Y" ) );
00345     TimeBox->setText2( i18n( "Universal Time", "UT: " ) + ut.time().toString()
00346         + "   " + ut.date().toString( "%d %b %Y" ) );
00347     
00348     QString STString;
00349     STString = STString.sprintf( "%02d:%02d:%02d   ", lst->hour(), lst->minute(), lst->second() );
00350     
00351     //Don't use KLocale::formatNumber() for Julian Day because we don't want 
00352     //thousands-place separators
00353     QString JDString = QString::number( ut.djd(), 'f', 2 );
00354     JDString.replace( ".", KGlobal::locale()->decimalSymbol() );
00355     
00356     TimeBox->setText3( i18n( "Sidereal Time", "ST: " ) + STString +
00357             i18n( "Julian Day", "JD: " ) + JDString );
00358 
00359     if ( ot1 == TimeBox->text1() && ot2 == TimeBox->text2() &&
00360             ot3 == TimeBox->text3() ) 
00361         return false;
00362     else {
00363         checkBorders(); 
00364         return true;
00365     }
00366 }
00367 
00368 bool InfoBoxes::geoChanged(const GeoLocation *geo) {
00369     QString ot1 = GeoBox->text1();
00370     QString ot2 = GeoBox->text2();
00371     
00372     QString name = geo->translatedName() + ", ";
00373     if ( ! geo->province().isEmpty() ) name += geo->translatedProvince() + ",  ";
00374     name += geo->translatedCountry();
00375     GeoBox->setText1( name );
00376 
00377     GeoBox->setText2( i18n( "Longitude", "Long:" ) + " " +
00378         KGlobal::locale()->formatNumber( geo->lng()->Degrees(),3) + "   " +
00379         i18n( "Latitude", "Lat:" ) + " " +
00380         KGlobal::locale()->formatNumber( geo->lat()->Degrees(),3) );
00381     
00382     if ( ot1 == GeoBox->text1() && ot2 == GeoBox->text2() )
00383         return false;
00384     else {
00385         checkBorders();
00386         return true;
00387     }
00388 }
00389 
00390 bool InfoBoxes::focusObjChanged( const QString &n ) {
00391     QString ot1 = FocusBox->text1();
00392     
00393     FocusBox->setText1( i18n( "Focused on: " ) + n );
00394     if ( ot1 == FocusBox->text1() ) return false;
00395     else {
00396         checkBorders();
00397         return true;
00398     }
00399 }
00400 
00401 bool InfoBoxes::focusCoordChanged(const SkyPoint *p) {
00402     QString ot2 = FocusBox->text2();
00403     QString ot3 = FocusBox->text3();
00404     
00405     FocusBox->setText2( i18n( "Right Ascension", "RA" ) + ": " + p->ra()->toHMSString() +
00406         "  " + i18n( "Declination", "Dec" ) +  ": " + p->dec()->toDMSString(true) );
00407     FocusBox->setText3( i18n( "Azimuth", "Az" ) + ": " + p->az()->toDMSString(true) + 
00408         "  " + i18n( "Altitude", "Alt" ) + ": " + p->alt()->toDMSString(true) );
00409 
00410     if ( ot2 == FocusBox->text2() && ot3 == FocusBox->text3() ) 
00411         return false;
00412     else {
00413         checkBorders();
00414         return true;
00415     }
00416 }
00417 
00418 void InfoBoxes::checkBorders(bool resetToDefault) {
00419     if (resetToDefault) {
00420         TimeBox->setAnchorFlag( InfoBox::AnchorNone );
00421         GeoBox->setAnchorFlag( InfoBox::AnchorNone );
00422         FocusBox->setAnchorFlag( InfoBox::AnchorNone );
00423     }
00424     
00425     if ( GeoBox->rect().right()    >= Width-2  ) GeoBox->setAnchorRight( true );
00426     if ( TimeBox->rect().right()   >= Width-2  ) TimeBox->setAnchorRight( true );
00427     if ( FocusBox->rect().right()  >= Width-2  ) FocusBox->setAnchorRight( true );
00428     if ( GeoBox->rect().bottom()   >= Height-2 ) GeoBox->setAnchorBottom( true );
00429     if ( TimeBox->rect().bottom()  >= Height-2 ) TimeBox->setAnchorBottom( true );
00430     if ( FocusBox->rect().bottom() >= Height-2 ) FocusBox->setAnchorBottom( true );
00431 
00432     if ( GeoBox->anchorRight()    ) GeoBox->move( Width, GeoBox->y() );
00433     if ( TimeBox->anchorRight()   ) TimeBox->move( Width, TimeBox->y() );
00434     if ( FocusBox->anchorRight()  ) FocusBox->move( Width, FocusBox->y() );
00435     if ( GeoBox->anchorBottom()   ) GeoBox->move( GeoBox->x(), Height );
00436     if ( TimeBox->anchorBottom()  ) TimeBox->move( TimeBox->x(), Height );
00437     if ( FocusBox->anchorBottom() ) FocusBox->move( FocusBox->x(), Height );
00438 }
00439 
00440 #include "infoboxes.moc"
kstars

infoboxes.cpp

kstars

API Reference
