1 files changed, 159 insertions, 0 deletions
diff --git a/propertysheet/src/org/eclipse/wb/internal/core/model/property/category/PropertyCategory.java b/propertysheet/src/org/eclipse/wb/internal/core/model/property/category/PropertyCategory.java
new file mode 100644
index 0000000..a135b03
--- /dev/null
+++ b/propertysheet/src/org/eclipse/wb/internal/core/model/property/category/PropertyCategory.java
@@ -0,0 +1,159 @@
+/*******************************************************************************
+ * Copyright (c) 2011 Google, Inc.
+ * 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:
+ *    Google, Inc. - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.wb.internal.core.model.property.category;
+
+import org.eclipse.wb.internal.core.model.property.Property;
+import org.eclipse.wb.internal.core.utils.check.Assert;
+
+/**
+ * Describes category of {@link Property}.
+ *
+ * @author scheglov_ke
+ * @coverage core.model.property
+ */
+public final class PropertyCategory {
+  /**
+   * "Normal" category, used for properties that should be displayed without any effect.
+   */
+  public static final PropertyCategory NORMAL = new PropertyCategory(0, "NORMAL");
+  /**
+   * "Preferred" category, for properties that are most useful for component.
+   */
+  public static final PropertyCategory PREFERRED = new PropertyCategory(-1, "PREFERRED");
+  /**
+   * "Advanced" category, for properties that are rarely used, visible if modified, even if not
+   * enabled.
+   */
+  public static final PropertyCategory ADVANCED = new PropertyCategory(1, "ADVANCED");
+  /**
+   * "Advanced" category, for properties that are rarely used, visible only if enabled.
+   */
+  public static final PropertyCategory ADVANCED_REALLY = new PropertyCategory(2, "ADVANCED_REALLY");
+  /**
+   * "Hidden" category, for properties that should not be displayed.
+   */
+  public static final PropertyCategory HIDDEN = new PropertyCategory(3, "HIDDEN");
+
+  ////////////////////////////////////////////////////////////////////////////
+  //
+  // System
+  //
+  ////////////////////////////////////////////////////////////////////////////
+  /**
+   * @return the system {@link PropertyCategory} with given priority.
+   */
+  public static final PropertyCategory system(int priority) {
+    return new PropertyCategory(SYSTEM_BASE + priority, "SYSTEM:" + priority);
+  }
+
+  /**
+   * @return the system {@link PropertyCategory} with priority
+   *         <code>system.getPriority() + additional</code>.
+   */
+  public static final PropertyCategory system(PropertyCategory system, int additional) {
+    Assert.isTrue(system.isSystem());
+    return system(system.getPriority() - SYSTEM_BASE + additional);
+  }
+
+  ////////////////////////////////////////////////////////////////////////////
+  //
+  // Instance fields
+  //
+  ////////////////////////////////////////////////////////////////////////////
+  private static final int SYSTEM_BASE = 1000;
+  private final int m_priority;
+  private final String m_string;
+
+  ////////////////////////////////////////////////////////////////////////////
+  //
+  // Constructor
+  //
+  ////////////////////////////////////////////////////////////////////////////
+  private PropertyCategory(int priority, String string) {
+    m_priority = priority;
+    m_string = string;
+  }
+
+  ////////////////////////////////////////////////////////////////////////////
+  //
+  // Object
+  //
+  ////////////////////////////////////////////////////////////////////////////
+  @Override
+  public String toString() {
+    return m_string;
+  }
+
+  @Override
+  public boolean equals(Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (obj instanceof PropertyCategory) {
+      PropertyCategory category = (PropertyCategory) obj;
+      return m_priority == category.m_priority;
+    }
+    // unknown class
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    return m_priority;
+  }
+
+  ////////////////////////////////////////////////////////////////////////////
+  //
+  // Access
+  //
+  ////////////////////////////////////////////////////////////////////////////
+  /**
+   * @return <code>true</code> if this property is preferred.
+   */
+  public boolean isPreferred() {
+    return this == PREFERRED;
+  }
+
+  /**
+   * @return <code>true</code> if this property is advanced.
+   */
+  public boolean isAdvanced() {
+    return this == ADVANCED;
+  }
+
+  /**
+   * @return <code>true</code> if this property is really advanced.
+   */
+  public boolean isAdvancedReally() {
+    return this == ADVANCED_REALLY;
+  }
+
+  /**
+   * @return <code>true</code> if this property is hidden.
+   */
+  public boolean isHidden() {
+    return this == HIDDEN;
+  }
+
+  /**
+   * @return <code>true</code> if this property is system.
+   */
+  public boolean isSystem() {
+    return m_priority >= 900;
+  }
+
+  /**
+   * @return the priority of this category.
+   */
+  public int getPriority() {
+    return m_priority;
+  }
+}