package bluej.prefmgr;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import bluej.pkgmgr.Project;
import javafx.collections.FXCollections;
import javafx.scene.Node;
import javafx.scene.control.CheckBox;
import javafx.scene.control.ComboBox;
import javafx.scene.control.Label;
import javafx.scene.layout.VBox;

import bluej.Config;
import bluej.utility.javafx.JavaFXUtil;
import threadchecker.OnThread;
import threadchecker.Tag;




| "Interface" preference panel. Settings for what to show (teamwork, testing tools etc)
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* and interface language.
* 
* @author Davin McCall
 
*/
@OnThread(Tag.FXPlatform)
public class InterfacePanel extends VBox
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implements PrefPanelListener{
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private ArrayList<String> allLangsInternal;
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private ComboBox langDropdown;
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private CheckBox accessibility;
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private CheckBox toggleTestNewsMode;
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public InterfacePanel()
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{
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JavaFXUtil.addStyleClass(this, "prefmgr-pref-panel");

       
      List<Node> langPanel = new ArrayList<>();
       {                         {                                                  
            allLangsInternal = new ArrayList<String>();
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List<String> allLangsReadable = new ArrayList<String>();
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for (int i = 1; ; i++) {
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String langString = Config.getPropString("bluej.language" + i, null);
               if (langString == null) {                        
                  break;                     
                  }
                    
                   
               // The format of a language string is:
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//    internal-name:display-name:iso3cc
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// The iso3cc (ISO country code) is optional.
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int colonIndex = langString.indexOf(':');
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if (colonIndex == -1) {
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continue; // don't understand this one
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}
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int secondColon = langString.indexOf(':', colonIndex + 1);
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if (secondColon == -1) {
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secondColon = langString.length();
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}
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allLangsInternal.add(langString.substring(0, colonIndex));
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allLangsReadable.add(langString.substring(colonIndex + 1, secondColon));
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}
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if (allLangsInternal.isEmpty()) {
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// Guard against modified or corrupted bluej.defs file
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allLangsInternal.add(Config.language);
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allLangsReadable.add(Config.language);
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}
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String [] langs = new String[allLangsReadable.size()];
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allLangsReadable.toArray(langs);
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langDropdown = new ComboBox(FXCollections.observableArrayList(langs));
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}
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langPanel.add(PrefMgrDialog.labelledItem("prefmgr.interface.language", langDropdown));
            
           
         Label t = new Label(Config.getString("prefmgr.interface.language.restart"));
         langPanel.add(t);         
         }
      getChildren().add(PrefMgrDialog.headedVBox("prefmgr.interface.language.title", langPanel));        
        
       
      accessibility = new CheckBox(Config.getString("prefmgr.accessibility.support"));
      getChildren().add(PrefMgrDialog.headedVBox("prefmgr.accessibility.title", Arrays.asList(accessibility)));
        
       
      // Hide this checkbox so that it is only revealed if you mouse-over while holding shift:
      toggleTestNewsMode = new CheckBox("Switch to testing mode for news display (after restart)");
      toggleTestNewsMode.setOpacity(0);
      toggleTestNewsMode.setOnMouseMoved(e -> {
      if (e.isShiftDown())
           {
         toggleTestNewsMode.setOpacity(1.0);             
         }
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});
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getChildren().add(toggleTestNewsMode);
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}
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@Override
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public void beginEditing(Project project)
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{
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String currentLang = Config.getPropString("bluej.language", "english");
   int curLangIndex = allLangsInternal.indexOf(currentLang);
   if (curLangIndex == -1) {            
      curLangIndex = 0;         
      }
   langDropdown.getSelectionModel().select(curLangIndex);
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accessibility.setSelected(PrefMgr.getFlag(PrefMgr.ACCESSIBILITY_SUPPORT));
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toggleTestNewsMode.setSelected(PrefMgr.getFlag(PrefMgr.NEWS_TESTING));
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if (toggleTestNewsMode.isSelected())
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{
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// Show it to begin with:
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toggleTestNewsMode.setOpacity(1.0);
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}
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}
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@Override
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public void commitEditing(Project project)
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{
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Config.putPropString("bluej.language", allLangsInternal.get(langDropdown.getSelectionModel().getSelectedIndex()));
        
   PrefMgr.setFlag(PrefMgr.ACCESSIBILITY_SUPPORT, accessibility.isSelected());

       
   // Only counts as selected if selected and visible:
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boolean testNewsMode = toggleTestNewsMode.isSelected() && toggleTestNewsMode.getOpacity() == 1.0;
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if (testNewsMode && !PrefMgr.getFlag(PrefMgr.NEWS_TESTING))
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{
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// Also blank last-seen date so they see the latest testing news:
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Config.putPropString(Config.MESSAGE_LATEST_SEEN, "");         
      }
   PrefMgr.setFlag(PrefMgr.NEWS_TESTING, testNewsMode);     
   }
    
   
@Override
   
public void revertEditing(Project project)
   {     
} 
}