kstars/kstars/opscolors.cpp

   1 /***************************************************************************
   2                           opscolors.cpp  -  K Desktop Planetarium
   3                              -------------------
   4     begin                : Sun Feb 29  2004
   5     copyright            : (C) 2004 by Jason Harris
   6     email                : jharris@30doradus.org
   7  ***************************************************************************/
   8
   9 /***************************************************************************
  10  *                                                                         *
  11  *   This program is free software; you can redistribute it and/or modify  *
  12  *   it under the terms of the GNU General Public License as published by  *
  13  *   the Free Software Foundation; either version 2 of the License, or     *
  14  *   (at your option) any later version.                                   *
  15  *                                                                         *
  16  ***************************************************************************/
  17
  18 #include <qfile.h>
  19
  20 #include <klocale.h>
  21 #include <knuminput.h>
  22 #include <kcombobox.h>
  23 #include <kpushbutton.h>
  24 #include <kcolordialog.h>
  25 #include <kmessagebox.h>
  26 #include <kinputdialog.h>
  27 #include <kstandarddirs.h>
  28
  29 #include "opscolors.h"
  30 #include "kstars.h"
  31 #include "kstarsdata.h"
  32 #include "skymap.h"
  33 #include "colorscheme.h"
  34
  35 OpsColors::OpsColors( QWidget *p, const char *name, WFlags fl )
  36         : OpsColorsUI( p, name, fl )
  37 {
  38         ksw = (KStars *)p;
  39
  40         //Populate list of adjustable colors
  41         for ( unsigned int i=0; i < ksw->data()->colorScheme()->numberOfColors(); ++i ) {
  42                 QPixmap col( 30, 20 );
  43                 col.fill( QColor( ksw->data()->colorScheme()->colorAt( i ) ) );
  44                 ColorPalette->insertItem( col, ksw->data()->colorScheme()->nameAt( i ) );
  45         }
  46
  47         PresetBox->insertItem( i18n( "use default color scheme", "Default Colors" ) );
  48         PresetBox->insertItem( i18n( "use 'star chart' color scheme", "Star Chart" ) );
  49         PresetBox->insertItem( i18n( "use 'night vision' color scheme", "Night Vision" ) );
  50         PresetBox->insertItem( i18n( "use 'moonless night' color scheme", "Moonless Night" ) );
  51
  52         PresetFileList.append( "default.colors" );
  53         PresetFileList.append( "chart.colors" );
  54         PresetFileList.append( "night.colors" );
  55         PresetFileList.append( "moonless-night.colors" );
  56
  57         QFile file;
  58         QString line, schemeName, filename;
  59         file.setName( locate( "appdata", "colors.dat" ) );
  60         if ( file.exists() && file.open( IO_ReadOnly ) ) {
  61                 QTextStream stream( &file );
  62
  63         while ( !stream.eof() ) {
  64                         line = stream.readLine();
  65                         schemeName = line.left( line.find( ':' ) );
  66                         filename = line.mid( line.find( ':' ) +1, line.length() );
  67                         PresetBox->insertItem( schemeName );
  68                         PresetFileList.append( filename );
  69           }
  70                 file.close();
  71         }
  72
  73         kcfg_StarColorIntensity->setValue( ksw->data()->colorScheme()->starColorIntensity() );
  74         kcfg_StarColorMode->insertItem( i18n( "use realistic star colors", "Real Colors" ) );
  75         kcfg_StarColorMode->insertItem( i18n( "show stars as red circles", "Solid Red" ) );
  76         kcfg_StarColorMode->insertItem( i18n( "show stars as black circles", "Solid Black" ) );
  77         kcfg_StarColorMode->insertItem( i18n( "show stars as white circles", "Solid White" ) );
  78         kcfg_StarColorMode->setCurrentItem( ksw->data()->colorScheme()->starColorMode() );
  79
  80         if ( ksw->data()->colorScheme()->starColorMode() != 0 ) //mode is not "Real Colors"
  81                 kcfg_StarColorIntensity->setEnabled( false );
  82         else
  83                 kcfg_StarColorIntensity->setEnabled( true );
  84
  85         connect( ColorPalette, SIGNAL( clicked( QListBoxItem* ) ), this, SLOT( newColor( QListBoxItem* ) ) );
  86         connect( kcfg_StarColorIntensity, SIGNAL( valueChanged( int ) ), this, SLOT( slotStarColorIntensity( int ) ) );
  87         connect( kcfg_StarColorMode, SIGNAL( activated( int ) ), this, SLOT( slotStarColorMode( int ) ) );
  88         connect( PresetBox, SIGNAL( highlighted( int ) ), this, SLOT( slotPreset( int ) ) );
  89         connect( AddPreset, SIGNAL( clicked() ), this, SLOT( slotAddPreset() ) );
  90         connect( RemovePreset, SIGNAL( clicked() ), this, SLOT( slotRemovePreset() ) );
  91
  92         RemovePreset->setEnabled( false );
  93 }
  94
  95 //empty destructor
  96 OpsColors::~OpsColors() {}
  97
  98 void OpsColors::newColor( QListBoxItem *item ) {
  99         QPixmap pixmap( 30, 20 );
 100         QColor NewColor;
 101         unsigned int i;
 102
 103         for ( i=0; i < ksw->data()->colorScheme()->numberOfColors(); ++i ) {
 104                 if ( item->text() == ksw->data()->colorScheme()->nameAt( i ) ) {
 105                         QColor col( ksw->data()->colorScheme()->colorAt( i ) );
 106
 107                         if(KColorDialog::getColor( col )) NewColor = col;
 108                         break;
 109                 }
 110         }
 111
 112         //NewColor will only be valid if the above if statement was found to be true during one of the for loop iterations
 113         if ( NewColor.isValid() ) {
 114                 pixmap.fill( NewColor );
 115                 ColorPalette->changeItem( pixmap, item->text(), ColorPalette->index( item ) );
 116                 ksw->data()->colorScheme()->setColor( ksw->data()->colorScheme()->keyAt( i ), NewColor.name() );
 117         }
 118
 119         ksw->map()->forceUpdate();
 120 }
 121
 122 void OpsColors::slotPreset( int index ) {
 123         QStringList::Iterator it = PresetFileList.at( index );
 124         bool result = setColors( *it );
 125         if (!result) {
 126                 QString message = i18n( "The specified color scheme file (%1) could not be found, or was corrupt." ).arg( QString(*it) );
 127                 KMessageBox::sorry( 0, message, i18n( "Could Not Set Color Scheme" ) );
 128         }
 129 }
 130
 131 bool OpsColors::setColors( QString filename ) {
 132         QPixmap *temp = new QPixmap( 30, 20 );
 133
 134         //just checking if colorscheme is removable...
 135         QFile test;
 136         test.setName( locateLocal( "appdata", filename ) ); //try filename in local user KDE directory tree.
 137         if ( test.exists() ) RemovePreset->setEnabled( true );
 138         else RemovePreset->setEnabled( false );
 139         test.close();
 140
 141         ksw->loadColorScheme( filename );
 142         kcfg_StarColorMode->setCurrentItem( ksw->data()->colorScheme()->starColorMode() );
 143         kcfg_StarColorIntensity->setValue( ksw->data()->colorScheme()->starColorIntensity() );
 144
 145         if ( ksw->map()->starColorMode() != ksw->data()->colorScheme()->starColorMode() )
 146                 ksw->map()->setStarColorMode( ksw->data()->colorScheme()->starColorMode() );
 147
 148         if ( ksw->map()->starColorIntensity() != ksw->data()->colorScheme()->starColorIntensity() )
 149                 ksw->map()->setStarColorIntensity( ksw->data()->colorScheme()->starColorIntensity() );
 150
 151         for ( unsigned int i=0; i < ksw->data()->colorScheme()->numberOfColors(); ++i ) {
 152                 temp->fill( QColor( ksw->data()->colorScheme()->colorAt( i ) ) );
 153                 ColorPalette->changeItem( *temp, ksw->data()->colorScheme()->nameAt( i ), i );
 154         }
 155
 156         ksw->map()->forceUpdate();
 157         return true;
 158 }
 159
 160 void OpsColors::slotAddPreset() {
 161         bool okPressed = false;
 162         QString schemename = KInputDialog::getText( i18n( "New Color Scheme" ),
 163                                                     i18n( "Enter a name for the new color scheme:" ),
 164                                                     QString::null, &okPressed, 0 );
 165
 166         if ( okPressed && ! schemename.isEmpty() ) {
 167                 if ( ksw->data()->colorScheme()->save( schemename ) ) {
 168                         PresetBox->insertItem( schemename );
 169                         PresetBox->setCurrentItem( PresetBox->findItem( schemename ) );
 170                         QString fname = ksw->data()->colorScheme()->fileName();
 171                         PresetFileList.append( fname );
 172                         ksw->addColorMenuItem( schemename, QString("cs_" + fname.left(fname.find(".colors"))).utf8() );
 173                 }
 174         }
 175 }
 176
 177 void OpsColors::slotRemovePreset() {
 178         QString name = PresetBox->currentText();
 179         QString filename = PresetFileList[ PresetBox->currentItem() ];
 180         QFile cdatFile;
 181         cdatFile.setName( locateLocal( "appdata", "colors.dat" ) ); //determine filename in local user KDE directory tree.
 182
 183         //Remove action from color-schemes menu
 184         ksw->removeColorMenuItem( QString("cs_" + filename.left( filename.find(".colors"))).utf8() );
 185
 186         if ( !cdatFile.exists() || !cdatFile.open( IO_ReadWrite ) ) {
 187                 QString message = i18n( "Local color scheme index file could not be opened.\nScheme cannot be removed." );
 188                 KMessageBox::sorry( 0, message, i18n( "Could Not Open File" ) );
 189         } else {
 190                 //Remove entry from the ListBox and from the QStringList holding filenames.
 191                 //We don't want another color scheme to be selected, so first
 192                 //temporarily disconnect the "highlighted" signal.
 193                 disconnect( PresetBox, SIGNAL( highlighted( int ) ), this, SLOT( slotPreset( int ) ) );
 194                 PresetBox->removeItem( PresetBox->currentItem() );
 195                 PresetBox->setCurrentItem( -1 );
 196                 RemovePreset->setEnabled( false );
 197
 198                 //Reconnect the "highlighted" signal
 199                 connect( PresetBox, SIGNAL( highlighted( int ) ), this, SLOT( slotPreset( int ) ) );
 200
 201                 //Read the contents of colors.dat into a QStringList, except for the entry to be removed.
 202                 QTextStream stream( &cdatFile );
 203                 QStringList slist;
 204                 bool removed = false;
 205
 206                 while ( !stream.eof() ) {
 207                         QString line = stream.readLine();
 208                         if ( line.left( line.find(':') ) != name ) slist.append( line );
 209                         else removed = true;
 210                 }
 211
 212                 if ( removed ) { //Entry was removed; delete the corresponding .colors file.
 213                         QFile colorFile;
 214                         colorFile.setName( locateLocal( "appdata", filename ) ); //determine filename in local user KDE directory tree.
 215                         if ( !colorFile.remove() ) {
 216                                 QString message = i18n( "Could not delete the file: %1" ).arg( colorFile.name() );
 217                                 KMessageBox::sorry( 0, message, i18n( "Error Deleting File" ) );
 218                         }
 219
 220                         //remove the old colors.dat file, and rebuild it with the modified string list.
 221                         cdatFile.remove();
 222                         cdatFile.open( IO_ReadWrite );
 223                         QTextStream stream2( &cdatFile );
 224                         for( unsigned int i=0; i<slist.count(); ++i )
 225                                 stream << slist[i] << endl;
 226                 } else {
 227                         QString message = i18n( "Could not find an entry named %1 in colors.dat." ).arg( name );
 228                         KMessageBox::sorry( 0, message, i18n( "Scheme Not Found" ) );
 229                 }
 230                 cdatFile.close();
 231         }
 232 }
 233
 234 void OpsColors::slotStarColorMode( int i ) {
 235         ksw->data()->colorScheme()->setStarColorMode( i );
 236         if ( ksw->map()->starColorMode() != ksw->data()->colorScheme()->starColorMode() )
 237                 ksw->map()->setStarColorMode( ksw->data()->colorScheme()->starColorMode() );
 238
 239         if ( ksw->data()->colorScheme()->starColorMode() != 0 ) //mode is not "Real Colors"
 240                 kcfg_StarColorIntensity->setEnabled( false );
 241         else
 242                 kcfg_StarColorIntensity->setEnabled( true );
 243 }
 244
 245 void OpsColors::slotStarColorIntensity( int i ) {
 246         ksw->data()->colorScheme()->setStarColorIntensity( i );
 247         if ( ksw->map()->starColorIntensity() != ksw->data()->colorScheme()->starColorIntensity() )
 248                 ksw->map()->setStarColorIntensity( ksw->data()->colorScheme()->starColorIntensity() );
 249
 250 }
 251
 252 #include "opscolors.moc"