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tdeedu/kstars/kstars/locationdialog.cpp

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/***************************************************************************
locationdialog.cpp - Trinity Desktop Planetarium
-------------------
begin : Sun Feb 11 2001
copyright : (C) 2001 by Jason Harris
email : jharris@30doradus.org
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#include <stdlib.h>
#include <stdio.h>
#include <tdemessagebox.h>
#include <kstandarddirs.h>
#include <klineedit.h>
#include <tqlayout.h>
#include <tqpushbutton.h>
#include <tqgroupbox.h>
#include <tqlabel.h>
#include <tqlistbox.h>
#include <tqcombobox.h>
#include <tqfile.h>
#include "locationdialog.h"
#include "kstars.h"
#include "kstarsdata.h"
#include "mapcanvas.h"
#include "dmsbox.h"
LocationDialog::LocationDialog( TQWidget* parent )
: KDialogBase( KDialogBase::Plain, i18n( "Set Geographic Location" ), Ok|Cancel, Ok, parent ) {
KStars *p = (KStars *)parent;
TQFrame *page = plainPage();
CityBox = new TQGroupBox( page, "CityBox" );
CoordBox = new TQGroupBox( page, "CoordBox" );
CityBox->setTitle( i18n( "Choose City" ) );
CoordBox->setTitle( i18n( "Choose/Modify Coordinates" ) );
//Create Layout managers
RootLay = new TQVBoxLayout( page, 4, 4 ); //root mgr for dialog
CityLay = new TQVBoxLayout( CityBox, 6, 4 ); //root mgr for CityBox
CityLay->setSpacing( 6 );
CityLay->setMargin( 6 );
hlay = new TQHBoxLayout( 2 ); //this layout will be added to CityLay
vlay = new TQVBoxLayout( 2 ); //this layout will be added to hlay
glay = new TQGridLayout( 3, 2, 6 ); //this layout will be added to vlay
CoordLay = new TQVBoxLayout( CoordBox, 6, 4 ); //root mgr for coordbox
CoordLay->setSpacing( 6 );
CoordLay->setMargin( 6 );
glay2 = new TQGridLayout( 3, 4, 4 ); //this layout will be added to CoordLay
hlayCoord = new TQHBoxLayout( 2 ); //this layout will be added to glay2
hlayTZ = new TQHBoxLayout( 2 ); //this layout will be added to glay2
hlayButtons = new TQHBoxLayout( 2 ); //this layout will be added to glay2
hlay3 = new TQHBoxLayout( 2 ); //this layout will be added to CoordLay
//Create widgets
CityFiltLabel = new TQLabel( CityBox );
CityFiltLabel->setText( i18n( "City filter:" ) );
ProvinceFiltLabel = new TQLabel( CityBox );
ProvinceFiltLabel->setText( i18n( "Province filter:" ) );
CountryFiltLabel = new TQLabel( CityBox );
CountryFiltLabel->setText( i18n( "Country filter:" ) );
CountLabel = new TQLabel( CityBox );
CityFilter = new KLineEdit( CityBox );
CityFilter->setFocus(); // set focus to city inputline
ProvinceFilter = new KLineEdit( CityBox );
CountryFilter = new KLineEdit( CityBox );
GeoBox = new TQListBox( CityBox );
GeoBox->setVScrollBarMode( TQListBox::AlwaysOn );
GeoBox->setHScrollBarMode( TQListBox::AlwaysOff );
MapView = new MapCanvas( CityBox );
MapView->setFixedSize( 360, 180 ); //each pixel 1 deg x 2 deg
NewCityLabel = new TQLabel( i18n( "City:" ), CoordBox );
NewProvinceLabel = new TQLabel( i18n( "State/Province:" ), CoordBox );
NewCountryLabel = new TQLabel( i18n( "Country:" ), CoordBox );
LongLabel = new TQLabel( i18n( "Longitude:" ), CoordBox );
LatLabel = new TQLabel( i18n( "Latitude:" ), CoordBox );
TZLabel = new TQLabel( i18n( "timezone offset from universal time", "UT offset:" ), CoordBox );
TZRuleLabel = new TQLabel( i18n( "daylight savings time rule", "DST rule:" ), CoordBox );
NewCityName = new KLineEdit( CoordBox );
NewProvinceName = new KLineEdit( CoordBox );
NewCountryName = new KLineEdit( CoordBox );
NewLong = new dmsBox( CoordBox );
NewLat = new dmsBox( CoordBox );
TZBox = new TQComboBox( CoordBox );
TZRuleBox = new TQComboBox( CoordBox );
TZBox->setMinimumWidth( 16 );
TZRuleBox->setMinimumWidth( 16 );
TZBox->setEditable( true );
TZBox->setDuplicatesEnabled( false );
for ( int i=0; i<25; ++i )
TZBox->insertItem( TDEGlobal::locale()->formatNumber( (double)(i-12) ) );
TQMap<TQString, TimeZoneRule>::Iterator it = p->data()->Rulebook.begin();
TQMap<TQString, TimeZoneRule>::Iterator itEnd = p->data()->Rulebook.end();
for ( ; it != itEnd; ++it )
if ( it.key().length() )
TZRuleBox->insertItem( it.key() );
ClearFields = new TQPushButton( i18n( "Clear Fields" ), CoordBox, "ClearFields" );
ShowTZRules = new TQPushButton( i18n( "Explain DST Rules" ), CoordBox, "ShowDSTRules" );
AddCityButton = new TQPushButton( i18n ( "Add to List" ), CoordBox, "AddCityButton" );
//Pack the widgets into the layouts
RootLay->addWidget( CityBox, 0, 0 );
RootLay->addWidget( CoordBox, 0, 0 );
CityLay->addSpacing( 14 );
CityLay->addLayout( hlay, 0 );
hlay->addLayout( vlay, 0 );
hlay->addSpacing( 12 );
hlay->addWidget( GeoBox, 0, 0 );
vlay->addWidget( MapView, 0, 0 );
vlay->addLayout( glay, 0 );
vlay->addWidget( CountLabel, 0, 0 );
glay->addWidget( CityFiltLabel, 0, 0 );
glay->addWidget( ProvinceFiltLabel, 1, 0 );
glay->addWidget( CountryFiltLabel, 2, 0 );
glay->addWidget( CityFilter, 0, 1 );
glay->addWidget( ProvinceFilter, 1, 1 );
glay->addWidget( CountryFilter, 2, 1 );
hlay->activate();
CoordLay->addSpacing( 14 );
CoordLay->addLayout( glay2, 0 );
CoordLay->addLayout( hlay3, 0 );
glay2->addWidget( NewCityLabel, 0, 0 );
glay2->addWidget( NewProvinceLabel, 1, 0 );
glay2->addWidget( NewCountryLabel, 2, 0 );
glay2->addWidget( NewCityName, 0, 1 );
glay2->addWidget( NewProvinceName, 1, 1 );
glay2->addWidget( NewCountryName, 2, 1 );
glay2->addLayout( hlayCoord, 0, 3 );
glay2->addLayout( hlayTZ, 1, 3 );
glay2->addLayout( hlayButtons, 2, 3 );
hlayCoord->addWidget( LongLabel );
hlayCoord->addWidget( NewLong );
hlayCoord->addWidget( LatLabel );
hlayCoord->addWidget( NewLat );
hlayTZ->addWidget( TZLabel );
hlayTZ->addWidget( TZBox );
hlayTZ->addWidget( TZRuleLabel );
hlayTZ->addWidget( TZRuleBox );
hlayButtons->addStretch();
hlayButtons->addWidget( ClearFields );
hlayButtons->addWidget( ShowTZRules );
hlay3->addStretch();
hlay3->addWidget( AddCityButton, 0 );
CoordLay->activate();
RootLay->activate();
connect( this, TQT_SIGNAL( cancelClicked() ), this, TQT_SLOT( reject() ) );
connect( CityFilter, TQT_SIGNAL( textChanged( const TQString & ) ), this, TQT_SLOT( filterCity() ) );
connect( ProvinceFilter, TQT_SIGNAL( textChanged( const TQString & ) ), this, TQT_SLOT( filterCity() ) );
connect( CountryFilter, TQT_SIGNAL( textChanged( const TQString & ) ), this, TQT_SLOT( filterCity() ) );
connect( NewCityName, TQT_SIGNAL( textChanged( const TQString & ) ), this, TQT_SLOT( nameChanged() ) );
connect( NewProvinceName, TQT_SIGNAL( textChanged( const TQString & ) ), this, TQT_SLOT( nameChanged() ) );
connect( NewCountryName, TQT_SIGNAL( textChanged( const TQString & ) ), this, TQT_SLOT( nameChanged() ) );
connect( NewLong, TQT_SIGNAL( textChanged( const TQString & ) ), this, TQT_SLOT( dataChanged() ) );
connect( NewLat, TQT_SIGNAL( textChanged( const TQString & ) ), this, TQT_SLOT( dataChanged() ) );
connect( TZBox, TQT_SIGNAL( activated(int) ), this, TQT_SLOT( dataChanged() ) );
connect( TZRuleBox, TQT_SIGNAL( activated(int) ), this, TQT_SLOT( dataChanged() ) );
connect( GeoBox, TQT_SIGNAL( selectionChanged() ), this, TQT_SLOT( changeCity() ) );
connect( AddCityButton, TQT_SIGNAL( clicked() ), this, TQT_SLOT( addCity() ) );
connect( ClearFields, TQT_SIGNAL( clicked() ), this, TQT_SLOT( clearFields() ) );
connect( ShowTZRules, TQT_SIGNAL( clicked() ), this, TQT_SLOT( showTZRules() ) );
dataModified = false;
nameModified = false;
AddCityButton->setEnabled( false );
NewCityName->setTrapReturnKey(true);
NewProvinceName->setTrapReturnKey(true);
NewCountryName->setTrapReturnKey(true);
CityFilter->setTrapReturnKey(true);
ProvinceFilter->setTrapReturnKey(true);
CountryFilter->setTrapReturnKey(true);
filteredCityList.setAutoDelete( false );
initCityList();
resize (640, 480);
}
LocationDialog::~LocationDialog(){
}
void LocationDialog::initCityList( void ) {
KStars *p = (KStars *)parent();
for (GeoLocation *loc = p->data()->geoList.first(); loc; loc = p->data()->geoList.next())
{
GeoBox->insertItem( loc->fullName() );
filteredCityList.append( loc );
//If TZ is not even integer value, add it to listbox
if ( loc->TZ0() - int( loc->TZ0() ) && ! TZBox->listBox()->findItem( TDEGlobal::locale()->formatNumber( loc->TZ0() ) ) ) {
for ( unsigned int i=0; i<((unsigned int) TZBox->count()); ++i ) {
if ( TZBox->text( i ).toDouble() > loc->TZ0() ) {
TZBox->insertItem( TDEGlobal::locale()->formatNumber( loc->TZ0() ), i-1 );
break;
}
}
}
}
//Sort the list of Cities alphabetically...note that filteredCityList may now have a different ordering!
GeoBox->sort();
CountLabel->setText( i18n("One city matches search criteria","%n cities match search criteria",GeoBox->count()) );
// attempt to highlight the current kstars location in the GeoBox
GeoBox->setCurrentItem( 0 );
if ( GeoBox->count() ) {
for ( uint i=0; i<GeoBox->count(); i++ ) {
if ( GeoBox->item(i)->text() == p->geo()->fullName() ) {
GeoBox->setCurrentItem( i );
break;
}
}
}
}
void LocationDialog::filterCity( void ) {
KStars *p = (KStars *)parent();
GeoBox->clear();
filteredCityList.clear();
nameModified = false;
dataModified = false;
AddCityButton->setEnabled( false );
for (GeoLocation *loc = p->data()->geoList.first(); loc; loc = p->data()->geoList.next()) {
TQString sc( loc->translatedName() );
TQString ss( loc->translatedCountry() );
TQString sp = "";
if ( !loc->province().isEmpty() )
sp = loc->translatedProvince();
if ( sc.lower().startsWith( CityFilter->text().lower() ) &&
sp.lower().startsWith( ProvinceFilter->text().lower() ) &&
ss.lower().startsWith( CountryFilter->text().lower() ) ) {
GeoBox->insertItem( loc->fullName() );
filteredCityList.append( loc );
}
}
GeoBox->sort();
CountLabel->setText( i18n("One city matches search criteria","%n cities match search criteria", GeoBox->count()) );
if ( GeoBox->firstItem() ) // set first item in list as selected
GeoBox->setCurrentItem( GeoBox->firstItem() );
MapView->repaint();
}
void LocationDialog::changeCity( void ) {
//when the selected city changes, set newCity, and redraw map
SelectedCity = 0L;
if ( GeoBox->currentItem() >= 0 ) {
for (GeoLocation *loc = filteredCityList.first(); loc; loc = filteredCityList.next()) {
if ( loc->fullName() == GeoBox->currentText() ) {
SelectedCity = loc;
break;
}
}
}
MapView->repaint();
//Fill the fields at the bottom of the window with the selected city's data.
if ( SelectedCity ) {
KStars *p = (KStars *)parent();
NewCityName->setText( SelectedCity->translatedName() );
NewProvinceName->setText( SelectedCity->translatedProvince() );
NewCountryName->setText( SelectedCity->translatedCountry() );
NewLong->showInDegrees( SelectedCity->lng() );
NewLat->showInDegrees( SelectedCity->lat() );
TZBox->setCurrentText( TDEGlobal::locale()->formatNumber( SelectedCity->TZ0() ) );
//Pick the City's rule from the rulebook
for ( int i=0; i<TZRuleBox->count(); ++i ) {
if ( p->data()->Rulebook[ TZRuleBox->text(i) ].equals( SelectedCity->tzrule() ) ) {
TZRuleBox->setCurrentItem( i );
//DEBUG
kdDebug() << "tzrule: " << TZRuleBox->text(i) <<":"<<i << endl;
break;
}
}
}
nameModified = false;
dataModified = false;
AddCityButton->setEnabled( false );
}
void LocationDialog::addCity( void ) {
KStars *p = (KStars *)parent();
bCityAdded = false;
if ( !nameModified && !dataModified ) {
TQString message = i18n( "This City already exists in the database." );
KMessageBox::sorry( 0, message, i18n( "Error: Duplicate Entry" ) );
return;
}
bool latOk(false), lngOk(false), tzOk(false);
dms lat = NewLat->createDms( true, &latOk );
dms lng = NewLong->createDms( true, &lngOk );
double TZ = TZBox->lineEdit()->text().toDouble( &tzOk );
if ( NewCityName->text().isEmpty() || NewCountryName->text().isEmpty() ) {
TQString message = i18n( "All fields (except province) must be filled to add this location." );
KMessageBox::sorry( 0, message, i18n( "Fields are Empty" ) );
return;
//FIXME after strings freeze lifts, separate TZ check from lat/long check
} else if ( ! latOk || ! lngOk || ! tzOk ) {
TQString message = i18n( "Could not parse coordinates." );
KMessageBox::sorry( 0, message, i18n( "Bad Coordinates" ) );
return;
} else {
if ( !nameModified ) {
TQString message = i18n( "Really override original data for this city?" );
if ( KMessageBox::questionYesNo( 0, message, i18n( "Override Existing Data?" ), i18n("Override Data"), i18n("Do Not Override")) == KMessageBox::No )
return; //user answered No.
}
TQString entry;
TQFile file;
//Strip off white space
TQString name = NewCityName->text().stripWhiteSpace();
TQString province = NewProvinceName->text().stripWhiteSpace();
TQString country = NewCountryName->text().stripWhiteSpace();
//check for user's city database. If it doesn't exist, create it.
file.setName( locateLocal( "appdata", "mycities.dat" ) ); //determine filename in local user KDE directory tree.
if ( !file.open( IO_ReadWrite | IO_Append ) ) {
TQString message = i18n( "Local cities database could not be opened.\nLocation will not be recorded." );
KMessageBox::sorry( 0, message, i18n( "Could Not Open File" ) );
return;
} else {
char ltsgn = 'N'; if ( lat.degree()<0 ) ltsgn = 'S';
char lgsgn = 'E'; if ( lng.degree()<0 ) lgsgn = 'W';
TQString TZrule = TZRuleBox->currentText();
entry = entry.sprintf( "%-32s : %-21s : %-21s : %2d : %2d : %2d : %c : %3d : %2d : %2d : %c : %5.1f : %2s\n",
name.local8Bit().data(), province.local8Bit().data(), country.local8Bit().data(),
abs(lat.degree()), lat.arcmin(), lat.arcsec(), ltsgn,
abs(lng.degree()), lng.arcmin(), lat.arcsec(), lgsgn,
TZ, TZrule.local8Bit().data() );
TQTextStream stream( &file );
stream << entry;
file.close();
//Add city to geoList...don't need to insert it alphabetically, since we always sort GeoList
GeoLocation *g = new GeoLocation( lng.Degrees(), lat.Degrees(),
NewCityName->text(), NewProvinceName->text(), NewCountryName->text(),
TZ, &p->data()->Rulebook[ TZrule ] );
p->data()->geoList.append( g );
//(possibly) insert new city into GeoBox by running filterCity()
filterCity();
//Attempt to highlight new city in list
GeoBox->setCurrentItem( 0 );
if ( GeoBox->count() ) {
for ( uint i=0; i<GeoBox->count(); i++ ) {
if ( GeoBox->item(i)->text() == g->fullName() ) {
GeoBox->setCurrentItem( i );
break;
}
}
}
}
}
bCityAdded = true;
return;
}
void LocationDialog::findCitiesNear( int lng, int lat ) {
KStars *ks = (KStars *)parent();
//find all cities within 3 degrees of (lng, lat); list them in GeoBox
GeoBox->clear();
filteredCityList.clear();
for (GeoLocation *loc = ks->data()->geoList.first(); loc; loc = ks->data()->geoList.next()) {
if ( ( abs( lng - int( loc->lng()->Degrees() ) ) < 3 ) &&
( abs( lat - int( loc->lat()->Degrees() ) ) < 3 ) ) {
GeoBox->insertItem( loc->fullName() );
filteredCityList.append( loc );
}
}
GeoBox->sort();
CountLabel->setText( i18n("One city matches search criteria","%n cities match search criteria",GeoBox->count()) );
if ( GeoBox->firstItem() ) // set first item in list as selected
GeoBox->setCurrentItem( GeoBox->firstItem() );
repaint();
}
bool LocationDialog::checkLongLat( void ) {
if ( NewLong->text().isEmpty() || NewLat->text().isEmpty() ) return false;
bool ok(false);
double lng = NewLong->createDms(true, &ok).Degrees();
if ( ! ok ) return false;
double lat = NewLat->createDms(true, &ok).Degrees();
if ( ! ok ) return false;
if ( lng < -180.0 || lng > 180.0 ) return false;
if ( lat < -90.0 || lat > 90.0 ) return false;
return true;
}
void LocationDialog::clearFields( void ) {
CityFilter->clear();
ProvinceFilter->clear();
CountryFilter->clear();
NewCityName->clear();
NewProvinceName->clear();
NewCountryName->clear();
NewLong->clearFields();
NewLat->clearFields();
TZBox->lineEdit()->setText( TDEGlobal::locale()->formatNumber( 0.0 ) );
TZRuleBox->setCurrentItem( 0 );
nameModified = true;
dataModified = false;
AddCityButton->setEnabled( false );
NewCityName->setFocus();
}
void LocationDialog::showTZRules( void ) {
TQStringList lines;
lines.append( i18n( " Start Date (Start Time) / Revert Date (Revert Time)" ) );
lines.append( " " );
lines.append( i18n( "--: No DST correction" ) );
lines.append( i18n( "AU: last Sun in Oct. (02:00) / last Sun in Mar. (02:00)" ) );
lines.append( i18n( "BZ: 2nd Sun in Oct. (00:00) / 3rd Sun in Feb. (00:00)" ) );
lines.append( i18n( "CH: 2nd Sun in Apr. (00:00) / 2nd Sun in Sep. (00:00)" ) );
lines.append( i18n( "CL: 2nd Sun in Oct. (04:00) / 2nd Sun in Mar. (04:00)" ) );
lines.append( i18n( "CZ: 1st Sun in Oct. (02:45) / 3rd Sun in Mar. (02:45)" ) );
lines.append( i18n( "EE: Last Sun in Mar. (00:00) / Last Sun in Oct. (02:00)" ) );
lines.append( i18n( "EG: Last Fri in Apr. (00:00) / Last Thu in Sep. (00:00)" ) );
lines.append( i18n( "EU: Last Sun in Mar. (01:00) / Last Sun in Oct. (01:00)" ) );
lines.append( i18n( "FK: 1st Sun in Sep. (02:00) / 3rd Sun in Apr. (02:00)" ) );
lines.append( i18n( "HK: 2nd Sun in May (03:30) / 3rd Sun in Oct. (03:30)" ) );
lines.append( i18n( "IQ: Apr 1 (03:00) / Oct. 1 (00:00)" ) );
lines.append( i18n( "IR: Mar 21 (00:00) / Sep. 22 (00:00)" ) );
lines.append( i18n( "JD: Last Thu in Mar. (00:00) / Last Thu in Sep. (00:00)" ) );
lines.append( i18n( "LB: Last Sun in Mar. (00:00) / Last Sun in Oct. (00:00)" ) );
lines.append( i18n( "MX: 1st Sun in May (02:00) / Last Sun in Sep. (02:00)" ) );
lines.append( i18n( "NB: 1st Sun in Sep. (02:00) / 1st Sun in Apr. (02:00)" ) );
lines.append( i18n( "NZ: 1st Sun in Oct. (02:00) / 3rd Sun in Mar. (02:00)" ) );
lines.append( i18n( "PY: 1st Sun in Oct. (00:00) / 1st Sun in Mar. (00:00)" ) );
lines.append( i18n( "RU: Last Sun in Mar. (02:00) / Last Sun in Oct. (02:00)" ) );
lines.append( i18n( "SK: 2nd Sun in May (00:00) / 2nd Sun in Oct. (00:00)" ) );
lines.append( i18n( "SY: Apr. 1 (00:00) / Oct. 1 (00:00)" ) );
lines.append( i18n( "TG: 1st Sun in Nov. (02:00) / Last Sun in Jan. (02:00)" ) );
lines.append( i18n( "TS: 1st Sun in Oct. (02:00) / Last Sun in Mar. (02:00)" ) );
lines.append( i18n( "US: 1st Sun in Apr. (02:00) / Last Sun in Oct. (02:00)" ) );
lines.append( i18n( "ZN: Apr. 1 (01:00) / Oct. 1 (00:00)" ) );
TQString message = i18n( "Daylight Saving Time Rules" );
KMessageBox::informationList( 0, message, lines, message );
}
void LocationDialog::nameChanged( void ) {
nameModified = true;
dataChanged();
}
//do not enable Add button until all data are present and valid.
void LocationDialog::dataChanged( void ) {
dataModified = true;
if ( ! NewCityName->text().isEmpty() && ! NewCountryName->text().isEmpty() && checkLongLat() )
AddCityButton->setEnabled( true );
else
AddCityButton->setEnabled( false );
}
void LocationDialog::slotOk( void ) {
bool bOkToClose = false;
if ( addCityEnabled() ) { //user closed the location dialog without adding their new city;
addCity(); //call addCity() for them!
bOkToClose = bCityAdded;
} else {
bOkToClose = true;
}
if ( bOkToClose ) accept();
}
bool LocationDialog::addCityEnabled() { return AddCityButton->isEnabled(); }
#include "locationdialog.moc"
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