code: /* ###
   * IP: GHIDRA
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   * 
   *      http://www.apache.org/licenses/LICENSE-2.0
   * 
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package ghidra.app.util.viewer.field;
  
  import ghidra.program.model.address.Address;
  import ghidra.program.model.data.DataImage;
  import ghidra.program.model.data.DataUtilities;
  import ghidra.program.model.listing.Data;
  import ghidra.program.model.listing.Program;
  import ghidra.program.util.OperandFieldLocation;
  import ghidra.program.util.ProgramLocation;
  
  /**
   * A {@link ProgramLocation} of an item that is a Resource 
   * embedded in a binary (ie. a embedded graphic image)
   */
  public class ResourceFieldLocation extends OperandFieldLocation {
  
  	/**
  	 * Cached here because users will probably need to query its details during
  	 * action enablement
  	 */
  	private Data data;
  
  	/**
  	 * Creates an ResourceFieldLocation
  	 * 
  	 * @param program the program
  	 * @param address the address of the location
  	 * @param componentPath the data component path
  	 * @param displayValue the text being displayed in the text.
  	 * @param opIndex the index of the operand at this location.
  	 * @param characterOffset the character position from the beginning of the operand.
  	 * @param data Data instance at the specified address / component path
  	 */
  	public ResourceFieldLocation(Program program, Address address, int[] componentPath,
  			String displayValue, int opIndex, int characterOffset, Data data) {
  
  		super(program, address, componentPath, null, displayValue, opIndex, characterOffset);
  		
  		this.data = data;
  	}
  
  	/**
  	 * Default constructor needed for restoring from XML.
  	 */
  	public ResourceFieldLocation() {
  		// for restoring from XML
  	}
  
  	/**
  	 * Returns the resource's Data instance.
  	 * 
  	 * @return the resource's Data instance 
  	 */
  	public Data getResourceData() {
  		if (data == null) {
  			data = DataUtilities.getDataAtLocation(this);
  		}
  		return data;
  	}
  
  	/**
  	 * Returns true if this resource is a {@link DataImage}.
  	 * 
  	 * @return true if this resource is a {@link DataImage}
  	 */
  	public boolean isDataImageResource() {
  		getResourceData(); // side effect to init data if null after deserialization
  		return data != null && data.getValue() instanceof DataImage;
  	}
  
  }
  