[Harmony Wiki] Update of "Drag and Drop" by AlexeiFedotov

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The following page has been changed by AlexeiFedotov:
http://wiki.apache.org/harmony/Drag_and_Drop

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+ === AWT Data Transfer ===
+ 
+ ==== Pre-reading ====
+ Please refer to http://java.sun.com/j2se/1.5.0/docs/api/java/awt/datatransfer/package-summary.html for general information on AWT data transfer.
+ See the drag-and-drop specification and tutorial at http://java.sun.com/j2se/1.5.0/docs/guide/dragndrop/index.html.
+ 
+ ==== Data Flavors ====
+ The mapping between the Java type and content type is the <code>SystemFlavorMap</code>. The mapping between content type and native format is hard-coded as long as each native format needs some code to perform the conversion. Harmony implementation does the data conversion is performed in two steps: from Java to intermediate format (which is platform-independent, and is one of content types listed above), then from intermediate format to the platform-dependent native format. The conversion from native format to Java is performed also in two steps: from native to intermediate, then from intermediate to Java. 
+ 
+ The table below shows the mapping of data flavors to supported native Windows formats.
+ ||'''Java type'''||'''Content type'''||'''Native format on Windows'''||
+ ||<code>String char[] InputStream</code>|| text/plain || CF_TEXT CF_UNICODETEXT ||
+ ||<code>Image</code>, <code>BufferedImage</code>||image/x-java-image|| CF_DIB (device independent bitmap) CF_ENHMETAFILE||
+ ||<code>Java.net.URL</code>||	application/x-java-url||	CFSTR_INETURLW CFSTR_INETURLA||
+ ||<code>String char[] InputStream</code>|| text/html ||	"HTML Format" ||
+ ||<code>Java.util.List||	application/x-java-file-list||	CF_HDROP||
+ ||<code>Java.lang.Serializable</code>||	application/x-java-serialized-object||	org.apache.harmony.awt.datatransfer: application/x-java-serialized-object; class= ||
+ 
+ 
  === Drag and Drop Development Plan ===
  
  ==== AWT/Windows (6w) ====