package bluej.editor.moe;

import bluej.Config;
import bluej.prefmgr.PrefMgr;
import bluej.utility.javafx.JavaFXUtil;
import javafx.scene.control.Label;
import javafx.scene.input.MouseButton;
import javafx.scene.layout.VBox;
import threadchecker.OnThread;
import threadchecker.Tag;




| Status label for the Moe editor.
|
| @author Michael Kolling
|
@OnThread(Tag.FXPlatform)
public final class StatusLabel
extends VBox{    
   public static enum Status
   {
      READONLY("editor.state.readOnly"),
      SAVED("editor.state.saved"),
      CHANGED("editor.state.changed");

       
      private final String displayText;

       
      private Status(String displayKey)
       {
         this.displayText = Config.getString(displayKey);         
         }

       
      public String getDisplayText()
       {            
         return displayText;         
         }     
      }

   
   private final Label statusLabel;
   
   private final Label errorLabel;
   
   private Status state;
   
   private int errorCount = 0;

   
   public StatusLabel(Status initialState, MoeEditor editor, MoeErrorManager errorManager)
   {
      JavaFXUtil.addStyleClass(this, "moe-status-label-wrapper");
      styleProperty().bind(PrefMgr.getEditorFontCSS(false));
       
      state = initialState;
       
      statusLabel = new Label();
       
      errorLabel = new Label();
      JavaFXUtil.addStyleClass(errorLabel, "error-count-label");
      getChildren().setAll(statusLabel, errorLabel);
      updateLabel();
      errorManager.listenForErrorChange(errs -> {
      errorCount = errs.size();
      updateLabel();         
      });
   
   setOnMouseClicked(e -> {
   if (e.getButton() == MouseButton.PRIMARY)
           {                
      
      if (errorCount > 0)
               {
         editor.compileOrShowNextError();                 
         }
      e.consume();             
      }         
   });
}

   


   
public boolean isSaved() 
   {
   return (state != Status.CHANGED);     
   }

   
public boolean isChanged() 
   {
   return (state == Status.CHANGED);     
   }

   
public boolean isReadOnly() 
   {
   return (state == Status.READONLY);     
   }

   
public void setState(Status newState)
   {        
   state = newState;
   updateLabel();     
   }

   
private void updateLabel()
   {
   statusLabel.setText(state.getDisplayText().replace("\n", ""));
   if (errorCount > 0)
       {
      errorLabel.setText("Errors: " + errorCount);         
      }
       

   else
       {
      errorLabel.setText("");         
      }
   JavaFXUtil.setPseudoclass("bj-status-error", errorCount > 0, this);     
   } 
}