Package javax.swing.undo

Examples of javax.swing.undo.AbstractUndoableEdit.canUndo()

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    AbstractUndoableEdit edit;

    edit = new AbstractUndoableEdit();

    // Check #1.
    harness.check(edit.canUndo());  

    // Check #2.
    edit.undo();
    harness.check(!edit.canUndo());
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    // Check #1.
    harness.check(edit.canUndo());  

    // Check #2.
    edit.undo();
    harness.check(!edit.canUndo());

    // Check #3.
    edit.redo();
    harness.check(edit.canUndo());
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    edit.undo();
    harness.check(!edit.canUndo());

    // Check #3.
    edit.redo();
    harness.check(edit.canUndo());

    // Check #4.
    edit.die();
    harness.check(!edit.canUndo());
  }
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    edit.redo();
    harness.check(edit.canUndo());

    // Check #4.
    edit.die();
    harness.check(!edit.canUndo());
  }
}
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