Difference between revisions of "Rap10M2 News"

• InputDialog

• MessageDialog

• ErrorDialog

File:RapErrorDialog.png

Due to the distributed nature of RAP, the way how the result is passed back to the caller differs from JFace. RAP JFace provides an IWindowCallback interface whose windowClosed method is called with the returnCode as a parameter when a dialog was closed.

Though implementing a ModifyListener does not differ from SWT as You can see below, the inner workings do differ. In contrary to SWT that sends a ModifyEvent immediately, RWT uses a delay of currently 500 ms after which the server is notified about changes.

  Text text = new Text( parent, RWT.SINGLE );
  text.addModifyListener( new ModifyListener() {
    public void modifyText( ModifyEvent event ) {
      // update model with changed text
    }
  } );

The screenshot below is taken from the RWT online demo, feel free to try it out yourself. File:RapDoubleClick.png

When adding a FocusListener to a control, it will be notified about focusLost and focusGained events.

As of now, not all controls do visually indicate that they currently are focused.

• The setTextLimit and getTextLimit methods can be use to control and query the number of characters that may be entered.
• All methods to control the text selection like setSelection and getSelection are implemented.

The following snippet, taken from the SelectionListener of the Show Selection button,

  Point sel= result.getSelection();
  String selText = text.getSelectionText();
  String msg = "Selection from " + sel.x + " to " + sel.y + " is " + selText;
  label.setText( msg );        

leads to what is shown below