package bluej.editor.moe;

import bluej.prefmgr.PrefMgr;
import bluej.utility.javafx.JavaFXUtil;
import javafx.scene.text.Text;
import javafx.scene.text.TextFlow;
import threadchecker.OnThread;
import threadchecker.Tag;




| An information panel, displayed at the bottom of a MoeEditor window. The panel can
| display error messages / notices to the user.
|
| @author Michael Kolling
|
@OnThread(Tag.FXPlatform)
public final class Info
extends TextFlow{    
   private final Text text;
   
   private boolean isClear;

   
   

   
   

| Construct a new Info instance.
|
public Info()
   {
      JavaFXUtil.addStyleClass(this, "moe-info");
       
      text = new Text();
      JavaFXUtil.addStyleClass(text, "moe-info-text");
      getChildren().add(text);

      text.styleProperty().bind(PrefMgr.getEditorFontCSS(false));

       
      isClear = true;     
      }

   
   


| Display a one- or two-line message (using '\n' to separate multiple lines).
|
public void message(String msg)
   {
      text.setText(msg);
       
      isClear = false;     
      }
    
   
   


| Like message(String), but the message may be displayed in a pop-up dialog if the user
| has enabled this preference (e.g. for blind users with screen readers)
|
public void messageImportant(String msg)
   {
      message(msg);     
      }

   
   


| Display a two line message
|
public void message(String msg1, String msg2)
   {
      message(msg1 + '\n' + msg2);     
      }

   
   


| Clear the display
|
public void clear()
   {
      if (!isClear) {
         message ("");
           
         isClear = true;         
         }     
      } 
   }