Examples of com.eteks.sweethome3d.swing.IconManager

  private final int HEIGHT = 32;
  
  public void testIconManager() 
      throws NoSuchFieldException, IllegalAccessException, InterruptedException, BrokenBarrierException, ClassNotFoundException {
    // Stop iconsLoader of iconManager 
    IconManager iconManager = IconManager.getInstance();
    iconManager.clear();
    // Replace icon manager by an executor that controls the start of a task with a barrier
    final CyclicBarrier iconLoadingStartBarrier = new CyclicBarrier(2);
    final ThreadPoolExecutor replacingIconsLoader = 
      new ThreadPoolExecutor(1, 1, 0L, TimeUnit.MILLISECONDS, new LinkedBlockingQueue<Runnable>()) {
        @Override
        protected void beforeExecute(Thread t, Runnable r) {
          super.beforeExecute(t, r);
          awaitBarrier(iconLoadingStartBarrier);
        }
    };
    // Redirect rejected tasks on iconsLoader to the replacing executor
    TestUtilities.setField(iconManager, "iconsLoader", replacingIconsLoader);
    
    // Test icon loading on a good image
    testIconLoading(getClass().getResource("resources/test.png"), true, iconLoadingStartBarrier);
    // Test icon loading on a content that doesn't an image
    testIconLoading(getClass().getResource("IconManagerTest.class"), false, iconLoadingStartBarrier);


    Class iconProxyClass = Class.forName(iconManager.getClass().getName() + "$IconProxy");
    URLContent waitIconContent = 
        (URLContent)TestUtilities.getField(iconManager, "waitIconContent");
    URLContent errorIconContent = 
        (URLContent)TestUtilities.getField(iconManager, "errorIconContent");


    // Check waitIcon is loaded directly without proxy
    Icon waitIcon = iconManager.getIcon(waitIconContent, HEIGHT, null);
    assertNotSame("Wait icon loaded with IconProxy", waitIcon.getClass(), iconProxyClass);


    // Check errorIcon is loaded directly without proxy
    Icon errorIcon = iconManager.getIcon(errorIconContent, HEIGHT, null);
    assertNotSame("Error icon loaded with IconProxy", errorIcon.getClass(), iconProxyClass);


    // For other tests, replace again iconLoader by an executor that let icon loading complete normally
    iconManager.clear();
  }

  /**
   * Test how an icon is loaded by IconManager. 
   */
  private void testIconLoading(URL iconURL, boolean goodIcon, CyclicBarrier iconLoadingStartBarrier) 
      throws ClassNotFoundException, NoSuchFieldException, IllegalAccessException, InterruptedException, BrokenBarrierException {
    IconManager iconManager = IconManager.getInstance();
    Class iconProxyClass = Class.forName(iconManager.getClass().getName() + "$IconProxy");
    
    URLContent waitIconContent = 
        (URLContent)TestUtilities.getField(iconManager, "waitIconContent");
    URLContent errorIconContent = 
        (URLContent)TestUtilities.getField(iconManager, "errorIconContent");
    
    final CyclicBarrier waitingComponentBarrier = new CyclicBarrier(2);
    // A dummy waiting component that waits on a barrier in its repaint method 
    Component waitingComponent = new Component() { 
      public void repaint() {
        awaitBarrier(waitingComponentBarrier); 
      }
    };


    Content iconContent = new URLContent(iconURL);
    Icon icon = iconManager.getIcon(iconContent, HEIGHT, waitingComponent);
    assertEquals("Icon not equal to wait icon while loading", waitIconContent.getURL(), icon);


    // Let iconManager load the iconContent
    iconLoadingStartBarrier.await();
    // Wait iconContent loading completion
    waitingComponentBarrier.await();
    if (goodIcon) {
      assertEquals("Icon not equal to icon read from resource", iconURL, icon);
    } else {
      assertEquals("Wrong icon not equal to errorIcon", errorIconContent.getURL(), icon);
    }
    
    // Check icon is loaded with proxy
    assertSame("Icon not loaded with IconProxy", icon.getClass(), iconProxyClass);


    // Check that icon is stored in cache
    Icon iconFromCache = iconManager.getIcon(iconContent, HEIGHT, waitingComponent);
    assertSame("Test icon reloaded", icon, iconFromCache);
  }

Examples of com.eteks.sweethome3d.swing.IconManager

Related Classes of com.eteks.sweethome3d.swing.IconManager