コード例 #1
0
    /**
     * Create a new ProjectionClass from the class
     *
     * @param pc projection class
     * @throws ClassNotFoundException couldn't find the class
     * @throws IntrospectionException problem with introspection
     */
    ProjectionClass(Class pc) throws ClassNotFoundException, IntrospectionException {
      projClass = pc;

      // eliminate common properties with "stop class" for getBeanInfo()
      Class stopClass;
      try {
        stopClass = Misc.findClass("ucar.unidata.geoloc.ProjectionImpl");
      } catch (Exception ee) {
        System.err.println("constructParamInput failed ");
        stopClass = null;
      }

      // analyze current projection class as a bean; may throw IntrospectionException
      BeanInfo info = java.beans.Introspector.getBeanInfo(projClass, stopClass);

      // find read/write methods
      PropertyDescriptor[] props = info.getPropertyDescriptors();
      if (debugBeans) {
        System.out.print("Bean Properties for class " + projClass);
        if ((props == null) || (props.length == 0)) {
          System.out.println("none");
          return;
        }
        System.out.println("");
      }
      for (int i = 0; i < props.length; i++) {
        PropertyDescriptor pd = props[i];
        Method reader = pd.getReadMethod();
        Method writer = pd.getWriteMethod();
        // only interesetd in read/write properties
        if ((reader == null) || (writer == null)) {
          continue;
        }
        // A hack to exclude some attributes
        if (pd.getName().equals("name") || pd.getName().equals("defaultMapArea")) {
          continue;
        }
        ProjectionParam p = new ProjectionParam(pd.getName(), reader, writer, pd.getPropertyType());
        paramList.add(p);

        if (debugBeans) {
          System.out.println("  -->" + p);
        }
      }

      // get an instance of this class so we can call toClassName()
      Projection project;
      if (null == (project = makeDefaultProjection())) {
        name = "none";
        return;
      }

      // invoke the toClassName method
      try {
        Method m = projClass.getMethod("getProjectionTypeLabel", VOIDCLASSARG);
        name = (String) m.invoke(project, VOIDOBJECTARG);
      } catch (NoSuchMethodException ee) {
        System.err.println(
            "ProjectionManager: class "
                + projClass
                + " does not have method getProjectionTypeLabel()");
        throw new ClassNotFoundException();
      } catch (SecurityException ee) {
        System.err.println(
            "ProjectionManager: class "
                + projClass
                + " got SecurityException on getProjectionTypeLabel()"
                + ee);
        throw new ClassNotFoundException();
      } catch (Exception ee) {
        System.err.println(
            "ProjectionManager: class "
                + projClass
                + " Exception when invoking getProjectionTypeLabel()"
                + ee);
        throw new ClassNotFoundException();
      }
    }
コード例 #2
0
ファイル: DynamicCustomizer.java プロジェクト: Rajmohan/acre
  /**
   * Standard constructor.
   *
   * @param type Type that you are going to be creating and editor for.
   * @param readOnly Set to true to create a read-only customizer.
   */
  public DynamicCustomizer(Class type, boolean readOnly) {
    super(new GridBagLayout());
    _readOnly = readOnly;
    _type = type;

    LabelFieldGBC gbc = new LabelFieldGBC();
    try {
      BeanInfo info = Introspector.getBeanInfo(type);
      // Set up pretty display stuff.
      setBorder(BorderFactory.createTitledBorder(info.getBeanDescriptor().getDisplayName()));
      setToolTipText(info.getBeanDescriptor().getShortDescription());

      // Get the properties and sort them.
      PropertyDescriptor[] props = info.getPropertyDescriptors();
      Arrays.sort(props, new PropertyComparator());
      for (int i = 0; i < props.length; i++) {
        // Ignore the "class" property, if it is provided.
        if (props[i].getName().equals("class")) continue;
        // Create a label for the field.
        JLabel label = new JLabel(props[i].getDisplayName() + ":");

        // Lookup the editor.
        PropertyEditor editor = getEditorForProperty(props[i]);

        // Add a listener to the editor so we know when to update
        // the bean's fields.
        editor.addPropertyChangeListener(_eListener);

        // XXX What we need to do right here is provide a component
        // that makes use of the "paintable" capability of the editor.
        Component comp = editor.getCustomEditor();
        if (comp == null) {
          comp = new JLabel("<No editor available.>");
          ((JLabel) comp).setBorder(BorderFactory.createEtchedBorder());
        }

        // See if it is a read-only property. If so, then just
        // display it.
        if (_readOnly || props[i].getWriteMethod() == null) {
          comp.setEnabled(false);
        }

        // Setup the accellerator key.
        label.setLabelFor(comp);
        label.setDisplayedMnemonic(label.getText().charAt(0));

        // Set the tool tip text, if any.
        String tip = props[i].getShortDescription();
        if (tip != null) {
          label.setToolTipText(tip);
          if (comp instanceof JComponent) {
            ((JComponent) comp).setToolTipText(tip);
          }
        }

        // Add the label and fields.
        add(label, gbc.forLabel());
        add(comp, gbc.forField());

        // Set the mappings between editor and property, etc. for
        // quick lookup later.
        _prop2Editor.put(props[i], editor);
        _editor2Prop.put(editor, props[i]);
      }
      // Filler...
      add(new JLabel(), gbc.forLastLabel());

    } catch (Exception ex) {
      ex.printStackTrace();
    }
  }