[329632] Create common access mechanism for SharedIcons

https://bugs.eclipse.org/bugs/show_bug.cgi?id=329632

2 files changed, 213 insertions, 0 deletions

diff --git a/plugins/org.eclipse.emf.cdo.ui.shared/src/org/eclipse/emf/cdo/ui/internal/icons/SharedIcons.java b/plugins/org.eclipse.emf.cdo.ui.shared/src/org/eclipse/emf/cdo/ui/internal/icons/SharedIcons.java
new file mode 100644
index 0000000000..543c634430
--- /dev/null
+++ b/plugins/org.eclipse.emf.cdo.ui.shared/src/org/eclipse/emf/cdo/ui/internal/icons/SharedIcons.java
@@ -0,0 +1,160 @@
+/**
+ * Copyright (c) 2004 - 2010 Eike Stepper (Berlin, Germany) and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Eike Stepper - initial API and implementation
+ *    Victor Roldan Betancort - maintenance
+ */
+package org.eclipse.emf.cdo.ui.internal.icons;
+
+import org.eclipse.emf.cdo.ui.internal.icons.bundle.OM;
+
+import org.eclipse.jface.resource.ImageDescriptor;
+import org.eclipse.jface.resource.ImageRegistry;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.ui.plugin.AbstractUIPlugin;
+
+/**
+ * @author Eike Stepper
+ */
+public class SharedIcons
+{
+  private static final String IMAGE_FORMAT_GIF = ".gif"; //$NON-NLS-1$
+
+  private static final String IMAGE_FORMAT_PNG = ".png"; //$NON-NLS-1$
+
+  private static final ImageRegistry REGISTRY = new ImageRegistry(getDisplay());
+
+  private static final String ETOOL = "etool16/"; //$NON-NLS-1$
+
+  private static final String OBJ = "obj16/"; //$NON-NLS-1$
+
+  private static final String VIEW = "view16/"; //$NON-NLS-1$
+
+  private static final String WIZBAN = "wizban/"; //$NON-NLS-1$
+
+  public static final String ETOOL_OPEN_SESSION = ETOOL + "open_session" + IMAGE_FORMAT_GIF; //$NON-NLS-1$
+
+  public static final String ETOOL_OPEN_EDITOR = ETOOL + "open_editor" + IMAGE_FORMAT_GIF; //$NON-NLS-1$
+
+  public static final String OBJ_SESSION = OBJ + "cdo_session" + IMAGE_FORMAT_GIF; //$NON-NLS-1$
+
+  public static final String OBJ_SESSION_SYNCING = OBJ + "cdo_session_syncing" + IMAGE_FORMAT_GIF; //$NON-NLS-1$
+
+  public static final String OBJ_SESSION_OFFLINE = OBJ + "cdo_session_offline" + IMAGE_FORMAT_GIF; //$NON-NLS-1$
+
+  public static final String OBJ_EDITOR = OBJ + "cdo_editor" + IMAGE_FORMAT_GIF; //$NON-NLS-1$
+
+  public static final String OBJ_EDITOR_READWRITE = OBJ + "cdo_editor_readwrite" + IMAGE_FORMAT_GIF; //$NON-NLS-1$
+
+  public static final String OBJ_EDITOR_READONLY = OBJ + "cdo_editor_readonly" + IMAGE_FORMAT_GIF; //$NON-NLS-1$
+
+  public static final String OBJ_EDITOR_HISTORICAL = OBJ + "cdo_editor_historical" + IMAGE_FORMAT_GIF; //$NON-NLS-1$
+
+  public static final String OBJ_EPACKAGE = OBJ + "EPackage" + IMAGE_FORMAT_GIF; //$NON-NLS-1$
+
+  public static final String OBJ_RESOURCE = OBJ + "CDOResource" + IMAGE_FORMAT_GIF; //$NON-NLS-1$
+
+  public static final String OBJ_RESOURCE_FOLDER = OBJ + "CDOResourceFolder" + IMAGE_FORMAT_GIF; //$NON-NLS-1$
+
+  public static final String OBJ_EPACKAGE_CONVERTED = OBJ + "EPackageConverted" + IMAGE_FORMAT_GIF; //$NON-NLS-1$
+
+  public static final String OBJ_EPACKAGE_LEGACY = OBJ + "EPackageLegacy" + IMAGE_FORMAT_GIF; //$NON-NLS-1$
+
+  public static final String OBJ_EPACKAGE_NATIVE = OBJ + "EPackageNative" + IMAGE_FORMAT_GIF; //$NON-NLS-1$
+
+  public static final String OBJ_EPACKAGE_DYNAMIC = OBJ + "EPackageDynamic" + IMAGE_FORMAT_GIF; //$NON-NLS-1$
+
+  public static final String OBJ_EPACKAGE_UNKNOWN = OBJ + "EPackageUnknown" + IMAGE_FORMAT_GIF; //$NON-NLS-1$
+
+  public static final String OBJ_ECLASS = OBJ + "EClass" + IMAGE_FORMAT_GIF; //$NON-NLS-1$
+
+  public static final String VIEW_SESSIONS = VIEW + "cdo_sessions" + IMAGE_FORMAT_GIF; //$NON-NLS-1$
+
+  public static final String WIZBAN_PACKAGE_MANAGER = WIZBAN + "PackageManager" + IMAGE_FORMAT_GIF; //$NON-NLS-1$
+
+  public static final String WIZBAN_PROTOCOL_PROBLEM = WIZBAN + "ProtocolProblem" + IMAGE_FORMAT_GIF; //$NON-NLS-1$
+
+  public static final String WIZBAN_TARGET_SELECTION = WIZBAN + "BranchBanner" + IMAGE_FORMAT_GIF; //$NON-NLS-1$
+
+  public static final String WIZBAN_TIME_SELECTION = WIZBAN + "TimeBanner" + IMAGE_FORMAT_GIF; //$NON-NLS-1$
+
+  public static final String ETOOL_TIME_PICK_BUTTON_ICON = ETOOL + "clock" + IMAGE_FORMAT_PNG; //$NON-NLS-1$
+
+  public static final String ETOOL_SLIDER_ICON = ETOOL + "slider" + IMAGE_FORMAT_PNG; //$NON-NLS-1$
+
+  public static final String REPO = OBJ + "repo.gif"; //$NON-NLS-1$
+
+  public static final String BRANCH = OBJ + "branch.png"; //$NON-NLS-1$
+
+  public static Image getImage(String key)
+  {
+    key = mangleKey(key);
+    Image image = REGISTRY.get(key);
+    if (image == null)
+    {
+      createDescriptor(key);
+      image = REGISTRY.get(key);
+    }
+
+    // For some reason, sometimes images get disposed.
+    // In that case, create and put in registry again.
+    if (image.isDisposed())
+    {
+      REGISTRY.remove(key);
+      createDescriptor(key);
+      image = REGISTRY.get(key);
+    }
+
+    return image;
+  }
+
+  public static ImageDescriptor getDescriptor(String key)
+  {
+    key = mangleKey(key);
+    ImageDescriptor descriptor = REGISTRY.getDescriptor(key);
+    if (descriptor == null)
+    {
+      descriptor = createDescriptor(key);
+    }
+
+    return descriptor;
+  }
+
+  private static ImageDescriptor createDescriptor(String key)
+  {
+    ImageDescriptor descriptor = AbstractUIPlugin.imageDescriptorFromPlugin(OM.BUNDLE_ID, key);
+    if (descriptor != null)
+    {
+      REGISTRY.put(key, descriptor);
+    }
+
+    return descriptor;
+  }
+
+  private static Display getDisplay()
+  {
+    Display display = Display.getCurrent();
+    if (display == null)
+    {
+      display = Display.getDefault();
+    }
+
+    if (display == null)
+    {
+      throw new IllegalStateException("display == null"); //$NON-NLS-1$
+    }
+
+    return display;
+  }
+
+  private static String mangleKey(String key)
+  {
+    return "icons/full/" + key; //$NON-NLS-1$
+  }
+}
diff --git a/plugins/org.eclipse.emf.cdo.ui.shared/src/org/eclipse/emf/cdo/ui/internal/icons/bundle/OM.java b/plugins/org.eclipse.emf.cdo.ui.shared/src/org/eclipse/emf/cdo/ui/internal/icons/bundle/OM.java
new file mode 100644
index 0000000000..6b18fbcd2c
--- /dev/null
+++ b/plugins/org.eclipse.emf.cdo.ui.shared/src/org/eclipse/emf/cdo/ui/internal/icons/bundle/OM.java
@@ -0,0 +1,53 @@
+/**
+ * Copyright (c) 2004 - 2010 Eike Stepper (Berlin, Germany) and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Eike Stepper - initial API and implementation
+ *    Victor Roldan Betancort - maintenance
+ */
+package org.eclipse.emf.cdo.ui.internal.icons.bundle;
+
+import org.eclipse.net4j.util.om.OMBundle;
+import org.eclipse.net4j.util.om.OMPlatform;
+import org.eclipse.net4j.util.om.OSGiActivator;
+import org.eclipse.net4j.util.om.log.OMLogger;
+import org.eclipse.net4j.util.om.pref.OMPreferences;
+import org.eclipse.net4j.util.om.trace.OMTracer;
+
+/**
+ * The <em>Operations & Maintenance</em> class of this bundle.
+ * 
+ * @author Martin Fluegge
+ */
+public abstract class OM
+{
+  public static final String BUNDLE_ID = "org.eclipse.emf.cdo.ui.shared"; //$NON-NLS-1$
+
+  public static final OMBundle BUNDLE = OMPlatform.INSTANCE.bundle(BUNDLE_ID, OM.class);
+
+  public static final OMTracer DEBUG = BUNDLE.tracer("debug"); //$NON-NLS-1$
+
+  public static final OMTracer TEST = BUNDLE.tracer("test"); //$NON-NLS-1$
+
+  public static final OMLogger LOG = BUNDLE.logger();
+
+  public static final OMPreferences PREFS = BUNDLE.preferences();
+
+  /**
+   * @author Eike Stepper
+   */
+  public static final class Activator extends OSGiActivator
+  {
+    public static Activator INSTANCE;
+
+    public Activator()
+    {
+      super(BUNDLE);
+      INSTANCE = this;
+    }
+  }
+}