1 /*
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   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
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  23 
  24 /*
  25   @test
  26   @bug 4397404 4720930
  27   @summary tests that images of all supported native image formats are transfered properly
  28   @library ../../regtesthelpers/process/
  29   @build ProcessResults ProcessCommunicator
  30   @author gas@sparc.spb.su area=Clipboard
  31   @run main ImageTransferTest
  32 */
  33 
  34 import sun.awt.OSInfo;
  35 import sun.awt.SunToolkit;
  36 import test.java.awt.regtesthelpers.process.ProcessCommunicator;
  37 import test.java.awt.regtesthelpers.process.ProcessResults;
  38 
  39 import java.awt.*;
  40 import java.awt.datatransfer.DataFlavor;
  41 import java.awt.datatransfer.SystemFlavorMap;
  42 import java.awt.datatransfer.Transferable;
  43 import java.awt.datatransfer.UnsupportedFlavorException;
  44 import java.awt.dnd.DnDConstants;
  45 import java.awt.dnd.DragSource;
  46 import java.awt.dnd.DragSourceAdapter;
  47 import java.awt.dnd.DragSourceDropEvent;
  48 import java.awt.dnd.DragSourceListener;
  49 import java.awt.dnd.DropTarget;
  50 import java.awt.dnd.DropTargetAdapter;
  51 import java.awt.dnd.DropTargetDropEvent;
  52 import java.awt.event.InputEvent;
  53 import java.awt.image.BufferedImage;
  54 import java.awt.image.MemoryImageSource;
  55 import java.util.stream.Stream;
  56 
  57 public class ImageTransferTest {
  58     public static void main(String[] arg) throws Exception {
  59         ImageDragSource ids = new ImageDragSource();
  60         ids.frame.setLocation(100, 100);
  61         ids.frame.setVisible(true);
  62         Util.sync();
  63         String classpath = System.getProperty("java.class.path");
  64         String[] args = new String[ids.formats.length + 4];
  65         args[0] = "200";
  66         args[1] = "100";
  67         args[2] = args[3] = "150";
  68 
  69         System.arraycopy(ids.formats, 0, args, 4, ids.formats.length);
  70         ProcessResults pres = ProcessCommunicator.executeChildProcess(ImageDropTarget.class, classpath, args);
  71 
  72         if (pres.getStdErr() != null && pres.getStdErr().length() > 0) {
  73             System.err.println("========= Child VM System.err ========");
  74             System.err.print(pres.getStdErr());
  75             System.err.println("======================================");
  76         }
  77 
  78         if (pres.getStdOut() != null && pres.getStdOut().length() > 0) {
  79             System.err.println("========= Child VM System.out ========");
  80             System.err.print(pres.getStdOut());
  81             System.err.println("======================================");
  82         }
  83 
  84         boolean failed = false;
  85         String passedFormats = "";
  86         String failedFormats = "";
  87 
  88         for (int i = 0; i < ids.passedArray.length; i++) {
  89             if (ids.passedArray[i]) passedFormats += ids.formats[i] + " ";
  90             else {
  91                 failed = true;
  92                 failedFormats += ids.formats[i] + " ";
  93             }
  94         }
  95 
  96         if (failed) {
  97             throw new RuntimeException("test failed: images in following " +
  98                     "native formats are not transferred properly: " + failedFormats);
  99         } else {
 100             System.err.println("images in following " +
 101                     "native formats are transferred properly: " + passedFormats);
 102         }
 103     }
 104 }
 105 
 106 
 107 class Util {
 108     public static void sync() {
 109         ((SunToolkit) Toolkit.getDefaultToolkit()).realSync();
 110         try {
 111             Thread.sleep(500);
 112         } catch (InterruptedException e) {
 113             throw new RuntimeException(e);
 114         }
 115     }
 116 }
 117 
 118 abstract class ImageTransferer {
 119     Image image;
 120     String[] formats;
 121     int fi; // current format index
 122     Frame frame = new Frame();
 123 
 124 
 125     ImageTransferer() {
 126         image = createImage();
 127         frame.setSize(100, 100);
 128     }
 129 
 130     private static Image createImage() {
 131         int w = 100;
 132         int h = 100;
 133         int[] pix = new int[w * h];
 134 
 135         int index = 0;
 136         for (int y = 0; y < h; y++) {
 137             for (int x = 0; x < w; x++) {
 138                 int red = 127;
 139                 int green = 127;
 140                 int blue = y > h / 2 ? 127 : 0;
 141                 int alpha = 255;
 142                 if (x < w / 4 && y < h / 4) {
 143                     alpha = 0;
 144                     red = 0;
 145                 }
 146                 pix[index++] = (alpha << 24) | (red << 16) | (green << 8) | blue;
 147             }
 148         }
 149         return Toolkit.getDefaultToolkit().createImage(new MemoryImageSource(w, h, pix, 0, w));
 150     }
 151 
 152 
 153     static String[] retrieveFormatsToTest() {
 154         SystemFlavorMap sfm = (SystemFlavorMap) SystemFlavorMap.getDefaultFlavorMap();
 155         java.util.List<String> ln = sfm.getNativesForFlavor(DataFlavor.imageFlavor);
 156         if (OSInfo.OSType.WINDOWS.equals(OSInfo.getOSType()) && !ln.contains("METAFILEPICT")) {
 157             // for test failing on JDK without this fix
 158             ln.add("METAFILEPICT");
 159         }
 160         return ln.toArray(new String[ln.size()]);
 161     }
 162 
 163     static void leaveFormat(String format) {
 164         SystemFlavorMap sfm = (SystemFlavorMap) SystemFlavorMap.getDefaultFlavorMap();
 165         sfm.setFlavorsForNative(format, new DataFlavor[]{DataFlavor.imageFlavor});
 166         sfm.setNativesForFlavor(DataFlavor.imageFlavor, new String[]{format});
 167     }
 168 
 169 
 170     boolean areImagesIdentical(Image im1, Image im2) {
 171         if (formats[fi].equals("JFIF") || formats[fi].equals("image/jpeg") ||
 172                 formats[fi].equals("GIF") || formats[fi].equals("image/gif")) {
 173             // JFIF and GIF are lossy formats
 174             return true;
 175         }
 176         int[] ib1 = getImageData(im1);
 177         int[] ib2 = getImageData(im2);
 178 
 179         if (ib1.length != ib2.length) {
 180             return false;
 181         }
 182 
 183         if (formats[fi].equals("PNG") ||
 184                 formats[fi].equals("image/png") ||
 185                 formats[fi].equals("image/x-png")) {
 186             // check alpha as well
 187             for (int i = 0; i < ib1.length; i++) {
 188                 if (ib1[i] != ib2[i]) {
 189                     System.err.println("different pixels: " +
 190                             Integer.toHexString(ib1[i]) + " " +
 191                             Integer.toHexString(ib2[i]));
 192                     return false;
 193                 }
 194             }
 195         } else {
 196             for (int i = 0; i < ib1.length; i++) {
 197                 if ((ib1[i] & 0x00FFFFFF) != (ib2[i] & 0x00FFFFFF)) {
 198                     System.err.println("different pixels: " +
 199                             Integer.toHexString(ib1[i]) + " " +
 200                             Integer.toHexString(ib2[i]));
 201                     return false;
 202                 }
 203             }
 204         }
 205         return true;
 206     }
 207 
 208     private static int[] getImageData(Image image) {
 209         int width = image.getWidth(null);
 210         int height = image.getHeight(null);
 211         BufferedImage bimage = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
 212         Graphics2D g2d = bimage.createGraphics();
 213         try {
 214             g2d.drawImage(image, 0, 0, width, height, null);
 215         } finally {
 216             g2d.dispose();
 217         }
 218         return bimage.getRGB(0, 0, width, height, null, 0, width);
 219     }
 220 
 221     public static int sign(int n) {
 222         return n < 0 ? -1 : n == 0 ? 0 : 1;
 223     }
 224 
 225 }
 226 
 227 
 228 class ImageDragSource extends ImageTransferer {
 229     boolean[] passedArray;
 230 
 231     ImageDragSource() {
 232         formats = retrieveFormatsToTest();
 233         passedArray = new boolean[formats.length];
 234         final DragSourceListener dsl = new DragSourceAdapter() {
 235             public void dragDropEnd(DragSourceDropEvent e) {
 236                 System.err.println("Drop was successful=" + e.getDropSuccess());
 237                 notifyTransferSuccess(e.getDropSuccess());
 238                 if (++fi < formats.length) {
 239                     leaveFormat(formats[fi]);
 240                 }
 241             }
 242         };
 243 
 244         new DragSource().createDefaultDragGestureRecognizer(frame,
 245                 DnDConstants.ACTION_COPY,
 246                 dge -> dge.startDrag(null, new ImageSelection(image), dsl));
 247         leaveFormat(formats[fi]);
 248     }
 249 
 250 
 251     void notifyTransferSuccess(boolean status) {
 252         passedArray[fi] = status;
 253     }
 254 }
 255 
 256 
 257 class ImageDropTarget extends ImageTransferer {
 258     private final Robot robot;
 259     private static Point startPoint, endPoint = new Point(250, 150);
 260 
 261     ImageDropTarget() throws AWTException {
 262         DropTargetAdapter dropTargetAdapter = new DropTargetAdapter() {
 263             @Override
 264             public void drop(DropTargetDropEvent dtde) {
 265                 checkImage(dtde);
 266                 startImageDrag();
 267             }
 268         };
 269         new DropTarget(frame, dropTargetAdapter);
 270         robot = new Robot();
 271     }
 272 
 273 
 274     void checkImage(DropTargetDropEvent dtde) {
 275         final Transferable t = dtde.getTransferable();
 276         if (t.isDataFlavorSupported(DataFlavor.imageFlavor)) {
 277             dtde.acceptDrop(DnDConstants.ACTION_COPY);
 278             Image im;
 279             try {
 280                 im = (Image) t.getTransferData(DataFlavor.imageFlavor);
 281                 System.err.println("getTransferData was successful");
 282             } catch (Exception e) {
 283                 System.err.println("Can't getTransferData: " + e);
 284                 dtde.dropComplete(false);
 285                 notifyTransferSuccess(false);
 286                 return;
 287             }
 288 
 289             if (im == null) {
 290                 System.err.println("getTransferData returned null");
 291                 dtde.dropComplete(false);
 292                 notifyTransferSuccess(false);
 293             } else if (areImagesIdentical(image, im)) {
 294                 dtde.dropComplete(true);
 295                 notifyTransferSuccess(true);
 296             } else {
 297                 System.err.println("transferred image is different from initial image");
 298                 dtde.dropComplete(false);
 299                 notifyTransferSuccess(false);
 300             }
 301 
 302         } else {
 303             System.err.println("imageFlavor is not supported by Transferable");
 304             dtde.rejectDrop();
 305             notifyTransferSuccess(false);
 306         }
 307     }
 308 
 309     void startImageDrag() {
 310         leaveFormat(formats[fi]);
 311         new Thread(() -> {
 312             try {
 313                 Thread.sleep(1000);
 314             } catch (InterruptedException e) {
 315                 e.printStackTrace();
 316                 // Exit from the child process
 317                 System.exit(1);
 318             }
 319             robot.mouseMove(startPoint.x, startPoint.y);
 320             robot.mousePress(InputEvent.BUTTON1_MASK);
 321             for (Point p = new Point(startPoint); !p.equals(endPoint);
 322                  p.translate(sign(endPoint.x - p.x), sign(endPoint.y - p.y))) {
 323                 robot.mouseMove(p.x, p.y);
 324                 try {
 325                     Thread.sleep(50);
 326                 } catch (InterruptedException e) {
 327                     e.printStackTrace();
 328                 }
 329             }
 330 
 331             robot.mouseRelease(InputEvent.BUTTON1_MASK);
 332         }).start();
 333     }
 334 
 335     void notifyTransferSuccess(boolean status) {
 336         if (status) {
 337             System.err.println("format passed: " + formats[fi]);
 338         } else {
 339             System.err.println("format failed: " + formats[fi]);
 340             System.exit(1);
 341         }
 342         if (fi < formats.length - 1) {
 343             leaveFormat(formats[++fi]);
 344         } else {
 345             new Thread(() -> {
 346                 try {
 347                     Thread.sleep(500);
 348                 } catch (InterruptedException e) {
 349                     e.printStackTrace();
 350                 }
 351                 System.exit(0);
 352             }).start();
 353         }
 354     }
 355 
 356 
 357     public static void main(String[] args) {
 358         try {
 359             ImageDropTarget idt = new ImageDropTarget();
 360 
 361             int x = Integer.parseInt(args[0]);
 362             int y = Integer.parseInt(args[1]);
 363             startPoint = new Point(Integer.parseInt(args[2]), Integer.parseInt(args[3]));
 364 
 365             idt.formats = new String[args.length - 4];
 366             System.arraycopy(args, 4, idt.formats, 0, args.length - 4);
 367             leaveFormat(idt.formats[0]);
 368 
 369             idt.frame.setLocation(x, y);
 370             idt.frame.setVisible(true);
 371             Util.sync();
 372 
 373             idt.startImageDrag();
 374         } catch (Throwable e) {
 375             e.printStackTrace();
 376             System.exit(1);
 377         }
 378     }
 379 
 380 }
 381 
 382 
 383 class ImageSelection implements Transferable {
 384     private static final int IMAGE = 0;
 385     private static final DataFlavor[] flavors = {DataFlavor.imageFlavor};
 386     private Image data;
 387 
 388     public ImageSelection(Image data) {
 389         this.data = data;
 390     }
 391 
 392     @Override
 393     public DataFlavor[] getTransferDataFlavors() {
 394         // returning flavors itself would allow client code to modify
 395         // our internal behavior
 396         return flavors.clone();
 397     }
 398 
 399     @Override
 400     public boolean isDataFlavorSupported(DataFlavor flavor) {
 401         return Stream.of(flavor).anyMatch(flavor::equals);
 402     }
 403 
 404     @Override
 405     public Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException {
 406         if (flavor.equals(flavors[IMAGE])) {
 407             return data;
 408         } else {
 409             throw new UnsupportedFlavorException(flavor);
 410         }
 411     }
 412 }