informatique:java:tips:drag_drop
Ceci est une ancienne révision du document !
Table des matières
Java Drag & Drop
Essais
Avec Linux XUbuntu: Drag d'un fichier depuis le gestionnaire de fichier Thunar vers un JTextField.
Dans la méthode canImport() du javax.swing.TransferHandler voici les DataFlavor obtenus (support.getDataFlavors()):
for (java.awt.datatransfer.DataFlavor df : support.getDataFlavors()) { System.out.println(df.getHumanPresentableName() + " - " + df.getMimeType()+" - "+df.getSubType() + " - " + df.getDefaultRepresentationClassAsString()); }
Quelque soit le type de fichier (“Text”, “Png”) le print ci-dessus donne :
text/uri-list - text/uri-list; class=java.io.Reader; charset=Unicode - uri-list - java.io.InputStream text/uri-list - text/uri-list; class=java.lang.String; charset=Unicode - uri-list - java.io.InputStream text/uri-list - text/uri-list; class=java.nio.CharBuffer; charset=Unicode - uri-list - java.io.InputStream text/uri-list - text/uri-list; class="[C"; charset=Unicode - uri-list - java.io.InputStream text/uri-list - text/uri-list; class=java.io.InputStream; charset=UTF-16 - uri-list - java.io.InputStream text/uri-list - text/uri-list; class=java.nio.ByteBuffer; charset=UTF-16 - uri-list - java.io.InputStream text/uri-list - text/uri-list; class="[B"; charset=UTF-16 - uri-list - java.io.InputStream text/uri-list - text/uri-list; class=java.io.InputStream; charset=UTF-8 - uri-list - java.io.InputStream text/uri-list - text/uri-list; class=java.nio.ByteBuffer; charset=UTF-8 - uri-list - java.io.InputStream text/uri-list - text/uri-list; class="[B"; charset=UTF-8 - uri-list - java.io.InputStream text/uri-list - text/uri-list; class=java.io.InputStream; charset=UTF-16BE - uri-list - java.io.InputStream text/uri-list - text/uri-list; class=java.nio.ByteBuffer; charset=UTF-16BE - uri-list - java.io.InputStream text/uri-list - text/uri-list; class="[B"; charset=UTF-16BE - uri-list - java.io.InputStream text/uri-list - text/uri-list; class=java.io.InputStream; charset=UTF-16LE - uri-list - java.io.InputStream text/uri-list - text/uri-list; class=java.nio.ByteBuffer; charset=UTF-16LE - uri-list - java.io.InputStream text/uri-list - text/uri-list; class="[B"; charset=UTF-16LE - uri-list - java.io.InputStream text/uri-list - text/uri-list; class=java.io.InputStream; charset=ISO-8859-1 - uri-list - java.io.InputStream text/uri-list - text/uri-list; class=java.nio.ByteBuffer; charset=ISO-8859-1 - uri-list - java.io.InputStream text/uri-list - text/uri-list; class="[B"; charset=ISO-8859-1 - uri-list - java.io.InputStream text/uri-list - text/uri-list; class=java.io.InputStream; charset=US-ASCII - uri-list - java.io.InputStream text/uri-list - text/uri-list; class=java.nio.ByteBuffer; charset=US-ASCII - uri-list - java.io.InputStream text/uri-list - text/uri-list; class="[B"; charset=US-ASCII - uri-list - java.io.InputStream
Et l'appel à DataFlavor.selectBestTextFlavor()
java.awt.datatransfer.DataFlavor df = java.awt.datatransfer.DataFlavor.selectBestTextFlavor(support.getDataFlavors()) ; System.out.println(df.getHumanPresentableName() + " - " + df.getMimeType()+" - "+df.getSubType() + " - " + df.getDefaultRepresentationClassAsString());
donne:
text/uri-list - text/uri-list; class=java.io.Reader; charset=Unicode - uri-list - java.io.InputStream
informatique/java/tips/drag_drop.1307146510.txt.gz · Dernière modification : 19/05/2012 00:15 (modification externe)