diff --git a/src/macosx/classes/sun/lwawt/macosx/CDataTransferer.java b/src/macosx/classes/sun/lwawt/macosx/CDataTransferer.java index 8b2eb3dfd783a55d09e502b90bbac46422c0c8fe..26d2347ff15bae39c7cca16f282e6e6fc184812a 100644 --- a/src/macosx/classes/sun/lwawt/macosx/CDataTransferer.java +++ b/src/macosx/classes/sun/lwawt/macosx/CDataTransferer.java @@ -52,7 +52,9 @@ public class CDataTransferer extends DataTransferer { "RICH_TEXT", "HTML", "PDF", - "URL" + "URL", + "PNG", + "JFIF" }; static { @@ -74,8 +76,8 @@ public class CDataTransferer extends DataTransferer { public static final int CF_HTML = 5; public static final int CF_PDF = 6; public static final int CF_URL = 7; - public static final int CF_PNG = 10; - public static final int CF_JPEG = 11; + public static final int CF_PNG = 8; + public static final int CF_JPEG = 9; private CDataTransferer() {} @@ -204,20 +206,9 @@ public class CDataTransferer extends DataTransferer { return handler; } - private native byte[] imageDataToPlatformImageBytes(int[] rData, int nW, int nH); @Override protected byte[] imageToPlatformBytes(Image image, long format) { - int w = image.getWidth(null); - int h = image.getHeight(null); - BufferedImage bimage = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB_PRE); - Graphics g = bimage.getGraphics(); - g.drawImage(image, 0, 0, w, h, null); - g.dispose(); - Raster raster = bimage.getRaster(); - DataBuffer buffer = raster.getDataBuffer(); - return imageDataToPlatformImageBytes(((DataBufferInt)buffer).getData(), - raster.getWidth(), - raster.getHeight()); + return CImage.getCreator().getPlatformImageBytes(image); } private static native String[] nativeDragQueryFile(final byte[] bytes); @@ -228,14 +219,9 @@ public class CDataTransferer extends DataTransferer { return nativeDragQueryFile(bytes); } - private native Image getImageForByteStream(byte[] bytes); - /** - * Translates a byte array which contains - * platform-specific image data in the given format into an Image. - */ @Override protected Image platformImageBytesToImage(byte[] bytes, long format) throws IOException { - return getImageForByteStream(bytes); + return CImage.getCreator().createImageFromPlatformImageBytes(bytes); } @Override diff --git a/src/macosx/classes/sun/lwawt/macosx/CImage.java b/src/macosx/classes/sun/lwawt/macosx/CImage.java index bef17be2d70b6d6d9e9e72a17cc5d1c6fce500eb..5f468df9a9039cbd55754bd73429d80dc533ad0b 100644 --- a/src/macosx/classes/sun/lwawt/macosx/CImage.java +++ b/src/macosx/classes/sun/lwawt/macosx/CImage.java @@ -38,11 +38,13 @@ import sun.awt.image.SunWritableRaster; public class CImage extends CFRetainedResource { private static native long nativeCreateNSImageFromArray(int[] buffer, int w, int h); + private static native long nativeCreateNSImageFromBytes(byte[] buffer); private static native long nativeCreateNSImageFromArrays(int[][] buffers, int w[], int h[]); private static native long nativeCreateNSImageFromFileContents(String file); private static native long nativeCreateNSImageOfFileFromLaunchServices(String file); private static native long nativeCreateNSImageFromImageName(String name); private static native long nativeCreateNSImageFromIconSelector(int selector); + private static native byte[] nativeGetPlatformImageBytes(int[] buffer, int w, int h); private static native void nativeCopyNSImageIntoArray(long image, int[] buffer, int sw, int sh, int dw, int dh); private static native Dimension2D nativeGetNSImageSize(long image); private static native void nativeSetNSImageSize(long image, double w, double h); @@ -50,7 +52,7 @@ public class CImage extends CFRetainedResource { private static native Dimension2D[] nativeGetNSImageRepresentationSizes(long image, double w, double h); static Creator creator = new Creator(); - static Creator getCreator() { + public static Creator getCreator() { return creator; } @@ -136,6 +138,23 @@ public class CImage extends CFRetainedResource { return ((DataBufferInt)bimg.getRaster().getDataBuffer()).getData(); } + public byte[] getPlatformImageBytes(final Image image) { + int[] buffer = imageToArray(image, false); + + if (buffer == null) { + return null; + } + + return nativeGetPlatformImageBytes(buffer, image.getWidth(null), image.getHeight(null)); + } + + /** + * Translates a byte array which contains platform-specific image data in the given format into an Image. + */ + public Image createImageFromPlatformImageBytes(final byte[] buffer) { + return createImageUsingNativeSize(nativeCreateNSImageFromBytes(buffer)); + } + // This is used to create a CImage from a Image public CImage createFromImage(final Image image) { return createFromImage(image, true); diff --git a/src/macosx/native/sun/awt/CDataTransferer.m b/src/macosx/native/sun/awt/CDataTransferer.m index 09a7e5c3a4cbe357b988e951b978f196302d3a2a..488068a4fe670b2b567937670a0151db50238487 100644 --- a/src/macosx/native/sun/awt/CDataTransferer.m +++ b/src/macosx/native/sun/awt/CDataTransferer.m @@ -54,6 +54,10 @@ NSMutableDictionary *getMappingTable() { forKey:[NSNumber numberWithLong:sun_lwawt_macosx_CDataTransferer_CF_PDF]]; [sStandardMappings setObject:NSURLPboardType forKey:[NSNumber numberWithLong:sun_lwawt_macosx_CDataTransferer_CF_URL]]; + [sStandardMappings setObject:NSPasteboardTypePNG + forKey:[NSNumber numberWithLong:sun_lwawt_macosx_CDataTransferer_CF_PNG]]; + [sStandardMappings setObject:(NSString*)kUTTypeJPEG + forKey:[NSNumber numberWithLong:sun_lwawt_macosx_CDataTransferer_CF_JPEG]]; } return sStandardMappings; } @@ -126,108 +130,6 @@ JNF_COCOA_EXIT(env); return returnValue; } -/* - * Class: sun_lwawt_macosx_CDataTransferer - * Method: imageDataToPlatformImageBytes - * Signature: ([III)[B - */ -JNIEXPORT jbyteArray JNICALL Java_sun_lwawt_macosx_CDataTransferer_imageDataToPlatformImageBytes -(JNIEnv *env, jobject obj, jintArray inPixelData, jint inWidth, jint inHeight) -{ - jbyteArray returnValue = nil; -JNF_COCOA_ENTER(env); - UInt32 *rawImageData = (UInt32 *)(*env)->GetPrimitiveArrayCritical(env, inPixelData, 0); - - // The pixel data is in premultiplied ARGB format. That's exactly what - // we need for the bitmap image rep. - if (rawImageData != NULL) { - NSBitmapImageRep *imageRep = [[NSBitmapImageRep alloc] initWithBitmapDataPlanes:NULL - pixelsWide:inWidth - pixelsHigh:inHeight - bitsPerSample:8 - samplesPerPixel:4 - hasAlpha:YES - isPlanar:NO - colorSpaceName:NSCalibratedRGBColorSpace - bytesPerRow:(inWidth*4) - bitsPerPixel:32]; - - // Conver the ARGB data into RGBA data that the bitmap can draw. - unsigned char *destData = [imageRep bitmapData]; - unsigned char *currentRowBase; - jint x, y; - - for (y = 0; y < inHeight; y++) { - currentRowBase = destData + y * (inWidth * 4); - unsigned char *currElement = currentRowBase; - for (x = 0; x < inWidth; x++) { - UInt32 currPixel = rawImageData[y * inWidth + x]; - *currElement++ = ((currPixel & 0xFF0000) >> 16); - *currElement++ = ((currPixel & 0xFF00) >> 8); - *currElement++ = (currPixel & 0xFF); - *currElement++ = ((currPixel & 0xFF000000) >> 24); - } - } - - (*env)->ReleasePrimitiveArrayCritical(env, inPixelData, rawImageData, JNI_ABORT); - NSData *tiffImage = [imageRep TIFFRepresentation]; - jsize tiffSize = (jsize)[tiffImage length]; // #warning 64-bit: -length returns NSUInteger, but NewByteArray takes jsize - returnValue = (*env)->NewByteArray(env, tiffSize); - CHECK_NULL_RETURN(returnValue, nil); - jbyte *tiffData = (jbyte *)(*env)->GetPrimitiveArrayCritical(env, returnValue, 0); - CHECK_NULL_RETURN(tiffData, nil); - [tiffImage getBytes:tiffData]; - (*env)->ReleasePrimitiveArrayCritical(env, returnValue, tiffData, 0); // Do not use JNI_COMMIT, as that will not free the buffer copy when +ProtectJavaHeap is on. - [imageRep release]; - } -JNF_COCOA_EXIT(env); - return returnValue; - -} - -static jobject getImageForByteStream(JNIEnv *env, jbyteArray sourceData) -{ - CHECK_NULL_RETURN(sourceData, NULL); - - jsize sourceSize = (*env)->GetArrayLength(env, sourceData); - if (sourceSize == 0) return NULL; - - jbyte *sourceBytes = (*env)->GetPrimitiveArrayCritical(env, sourceData, NULL); - CHECK_NULL_RETURN(sourceBytes, NULL); - NSData *rawData = [NSData dataWithBytes:sourceBytes length:sourceSize]; - - NSImage *newImage = [[NSImage alloc] initWithData:rawData]; - if (newImage) CFRetain(newImage); // GC - [newImage release]; - - (*env)->ReleasePrimitiveArrayCritical(env, sourceData, sourceBytes, JNI_ABORT); - CHECK_NULL_RETURN(newImage, NULL); - - // The ownership of the NSImage is passed to the new CImage jobject. No need to release it. - static JNF_CLASS_CACHE(jc_CImage, "sun/lwawt/macosx/CImage"); - static JNF_STATIC_MEMBER_CACHE(jm_CImage_getCreator, jc_CImage, "getCreator", "()Lsun/lwawt/macosx/CImage$Creator;"); - jobject creator = JNFCallStaticObjectMethod(env, jm_CImage_getCreator); - - static JNF_CLASS_CACHE(jc_CImage_Generator, "sun/lwawt/macosx/CImage$Creator"); - static JNF_MEMBER_CACHE(jm_CImage_Generator_createImageUsingNativeSize, jc_CImage_Generator, "createImageUsingNativeSize", "(J)Ljava/awt/image/BufferedImage;"); - return JNFCallObjectMethod(env, creator, jm_CImage_Generator_createImageUsingNativeSize, ptr_to_jlong(newImage)); // AWT_THREADING Safe (known object) -} - -/* - * Class: sun_lwawt_macosx_CDataTransferer - * Method: getImageForByteStream - * Signature: ([B)Ljava/awt/Image; - */ -JNIEXPORT jobject JNICALL Java_sun_lwawt_macosx_CDataTransferer_getImageForByteStream - (JNIEnv *env, jobject obj, jbyteArray sourceData) -{ - jobject img = NULL; -JNF_COCOA_ENTER(env); - img = getImageForByteStream(env, sourceData); -JNF_COCOA_EXIT(env); - return img; -} - static jobjectArray CreateJavaFilenameArray(JNIEnv *env, NSArray *filenameArray) { NSUInteger filenameCount = [filenameArray count]; diff --git a/src/macosx/native/sun/awt/CDragSource.m b/src/macosx/native/sun/awt/CDragSource.m index dc1507746bea1f5b72eea1871537e52ef67e2923..da677620e806e8574923dddb60b181239bc60200 100644 --- a/src/macosx/native/sun/awt/CDragSource.m +++ b/src/macosx/native/sun/awt/CDragSource.m @@ -318,8 +318,7 @@ static BOOL sNeedsEnter; // This is a good approximation if not perfect. A conclusive search would // have to be done matching all defined strings in AppKit's commonStrings.h. - if ([type hasPrefix:@"NS"] || [type hasPrefix:@"NeXT"]) - hasNSTypeData = true; + hasNSTypeData = [type hasPrefix:@"NS"] || [type hasPrefix:@"NeXT"] || [type hasPrefix:@"public."]; } } } diff --git a/src/macosx/native/sun/awt/CDropTarget.m b/src/macosx/native/sun/awt/CDropTarget.m index bff775fd10dc08ae8692d1b197d3227fc36c01db..7c2c0e1cba4de83651829ffffaef0adb482a5f34 100644 --- a/src/macosx/native/sun/awt/CDropTarget.m +++ b/src/macosx/native/sun/awt/CDropTarget.m @@ -106,6 +106,7 @@ extern JNFClassInfo jc_CDropTargetContextPeer; NSFilenamesPboardType, NSPostScriptPboardType, NSTIFFPboardType, + NSPasteboardTypePNG, NSRTFPboardType, NSTabularTextPboardType, NSFontPboardType, @@ -119,6 +120,7 @@ extern JNFClassInfo jc_CDropTargetContextPeer; NSVCardPboardType, NSFilesPromisePboardType, [DnDUtilities javaPboardType], + (NSString*)kUTTypeJPEG, nil]; // Enable dragging events over this object: diff --git a/src/macosx/native/sun/awt/CImage.m b/src/macosx/native/sun/awt/CImage.m index da7cefc4d519479b863f8c3251050c73a7397d30..ae93d56c4a15788695a72107f9c4e9242f7b2372 100644 --- a/src/macosx/native/sun/awt/CImage.m +++ b/src/macosx/native/sun/awt/CImage.m @@ -112,7 +112,7 @@ JNIEXPORT jlong JNICALL Java_sun_lwawt_macosx_CImage_nativeCreateNSImageFromArra jlong result = 0L; JNF_COCOA_ENTER(env); - + NSBitmapImageRep* imageRep = CImage_CreateImageRep(env, buffer, width, height); if (imageRep) { NSImage *nsImage = [[NSImage alloc] initWithSize:NSMakeSize(width, height)]; @@ -435,4 +435,64 @@ JNF_COCOA_ENTER(env); JNF_COCOA_EXIT(env); return jreturnArray; -} \ No newline at end of file +} + +/* + * Class: sun_lwawt_macosx_CImage + * Method: nativeGetPlatformImageBytes + * Signature: ([III)[B + */ +JNIEXPORT jbyteArray JNICALL Java_sun_lwawt_macosx_CImage_nativeGetPlatformImageBytes +(JNIEnv *env, jclass klass, jintArray buffer, jint width, jint height) +{ + jbyteArray result = 0L; + + JNF_COCOA_ENTER(env); + + NSBitmapImageRep* imageRep = [CImage_CreateImageRep(env, buffer, width, height) autorelease]; + if (imageRep) { + NSData *tiffImage = [imageRep TIFFRepresentation]; + jsize tiffSize = (jsize)[tiffImage length]; + result = (*env)->NewByteArray(env, tiffSize); + CHECK_NULL_RETURN(result, nil); + jbyte *tiffData = (jbyte *)(*env)->GetPrimitiveArrayCritical(env, result, 0); + CHECK_NULL_RETURN(tiffData, nil); + [tiffImage getBytes:tiffData]; + (*env)->ReleasePrimitiveArrayCritical(env, result, tiffData, 0); + } + + JNF_COCOA_EXIT(env); + + return result; +} + +/* + * Class: sun_lwawt_macosx_CImage + * Method: nativeCreateNSImageFromBytes + * Signature: ([B)J + */ +JNIEXPORT jlong JNICALL Java_sun_lwawt_macosx_CImage_nativeCreateNSImageFromBytes +(JNIEnv *env, jclass klass, jbyteArray sourceData) +{ + jlong result = 0L; + CHECK_NULL_RETURN(sourceData, 0L); + + JNF_COCOA_ENTER(env); + + jsize sourceSize = (*env)->GetArrayLength(env, sourceData); + if (sourceSize == 0) return 0L; + + jbyte *sourceBytes = (*env)->GetPrimitiveArrayCritical(env, sourceData, NULL); + CHECK_NULL_RETURN(sourceBytes, 0L); + NSData *rawData = [NSData dataWithBytes:sourceBytes length:sourceSize]; + NSImage *newImage = [[NSImage alloc] initWithData:rawData]; + + (*env)->ReleasePrimitiveArrayCritical(env, sourceData, sourceBytes, JNI_ABORT); + CHECK_NULL_RETURN(newImage, 0L); + + result = ptr_to_jlong(newImage); + JNF_COCOA_EXIT(env); + + return result; +} + diff --git a/test/java/awt/dnd/ImageTransferTest/ImageTransferTest.java b/test/java/awt/dnd/ImageTransferTest/ImageTransferTest.java new file mode 100644 index 0000000000000000000000000000000000000000..491d35fab9bb6eee7ef42fd36eade7ed0403cab3 --- /dev/null +++ b/test/java/awt/dnd/ImageTransferTest/ImageTransferTest.java @@ -0,0 +1,412 @@ +/* + * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +/* + @test + @bug 4397404 4720930 + @summary tests that images of all supported native image formats are transfered properly + @library ../../regtesthelpers/process/ + @build ProcessResults ProcessCommunicator + @author gas@sparc.spb.su area=Clipboard + @run main ImageTransferTest +*/ + +import sun.awt.OSInfo; +import sun.awt.SunToolkit; +import test.java.awt.regtesthelpers.process.ProcessCommunicator; +import test.java.awt.regtesthelpers.process.ProcessResults; + +import java.awt.*; +import java.awt.datatransfer.DataFlavor; +import java.awt.datatransfer.SystemFlavorMap; +import java.awt.datatransfer.Transferable; +import java.awt.datatransfer.UnsupportedFlavorException; +import java.awt.dnd.DnDConstants; +import java.awt.dnd.DragSource; +import java.awt.dnd.DragSourceAdapter; +import java.awt.dnd.DragSourceDropEvent; +import java.awt.dnd.DragSourceListener; +import java.awt.dnd.DropTarget; +import java.awt.dnd.DropTargetAdapter; +import java.awt.dnd.DropTargetDropEvent; +import java.awt.event.InputEvent; +import java.awt.image.BufferedImage; +import java.awt.image.MemoryImageSource; +import java.util.stream.Stream; + +public class ImageTransferTest { + public static void main(String[] arg) throws Exception { + ImageDragSource ids = new ImageDragSource(); + ids.frame.setLocation(100, 100); + ids.frame.setVisible(true); + Util.sync(); + String classpath = System.getProperty("java.class.path"); + String[] args = new String[ids.formats.length + 4]; + args[0] = "200"; + args[1] = "100"; + args[2] = args[3] = "150"; + + System.arraycopy(ids.formats, 0, args, 4, ids.formats.length); + ProcessResults pres = ProcessCommunicator.executeChildProcess(ImageDropTarget.class, classpath, args); + + if (pres.getStdErr() != null && pres.getStdErr().length() > 0) { + System.err.println("========= Child VM System.err ========"); + System.err.print(pres.getStdErr()); + System.err.println("======================================"); + } + + if (pres.getStdOut() != null && pres.getStdOut().length() > 0) { + System.err.println("========= Child VM System.out ========"); + System.err.print(pres.getStdOut()); + System.err.println("======================================"); + } + + boolean failed = false; + String passedFormats = ""; + String failedFormats = ""; + + for (int i = 0; i < ids.passedArray.length; i++) { + if (ids.passedArray[i]) passedFormats += ids.formats[i] + " "; + else { + failed = true; + failedFormats += ids.formats[i] + " "; + } + } + + if (failed) { + throw new RuntimeException("test failed: images in following " + + "native formats are not transferred properly: " + failedFormats); + } else { + System.err.println("images in following " + + "native formats are transferred properly: " + passedFormats); + } + } +} + + +class Util { + public static void sync() { + ((SunToolkit) Toolkit.getDefaultToolkit()).realSync(); + try { + Thread.sleep(500); + } catch (InterruptedException e) { + throw new RuntimeException(e); + } + } +} + +abstract class ImageTransferer { + Image image; + String[] formats; + int fi; // current format index + Frame frame = new Frame(); + + + ImageTransferer() { + image = createImage(); + frame.setSize(100, 100); + } + + private static Image createImage() { + int w = 100; + int h = 100; + int[] pix = new int[w * h]; + + int index = 0; + for (int y = 0; y < h; y++) { + for (int x = 0; x < w; x++) { + int red = 127; + int green = 127; + int blue = y > h / 2 ? 127 : 0; + int alpha = 255; + if (x < w / 4 && y < h / 4) { + alpha = 0; + red = 0; + } + pix[index++] = (alpha << 24) | (red << 16) | (green << 8) | blue; + } + } + return Toolkit.getDefaultToolkit().createImage(new MemoryImageSource(w, h, pix, 0, w)); + } + + + static String[] retrieveFormatsToTest() { + SystemFlavorMap sfm = (SystemFlavorMap) SystemFlavorMap.getDefaultFlavorMap(); + java.util.List ln = sfm.getNativesForFlavor(DataFlavor.imageFlavor); + if (OSInfo.OSType.WINDOWS.equals(OSInfo.getOSType()) && !ln.contains("METAFILEPICT")) { + // for test failing on JDK without this fix + ln.add("METAFILEPICT"); + } + return ln.toArray(new String[ln.size()]); + } + + static void leaveFormat(String format) { + SystemFlavorMap sfm = (SystemFlavorMap) SystemFlavorMap.getDefaultFlavorMap(); + sfm.setFlavorsForNative(format, new DataFlavor[]{DataFlavor.imageFlavor}); + sfm.setNativesForFlavor(DataFlavor.imageFlavor, new String[]{format}); + } + + + boolean areImagesIdentical(Image im1, Image im2) { + if (formats[fi].equals("JFIF") || formats[fi].equals("image/jpeg") || + formats[fi].equals("GIF") || formats[fi].equals("image/gif")) { + // JFIF and GIF are lossy formats + return true; + } + int[] ib1 = getImageData(im1); + int[] ib2 = getImageData(im2); + + if (ib1.length != ib2.length) { + return false; + } + + if (formats[fi].equals("PNG") || + formats[fi].equals("image/png") || + formats[fi].equals("image/x-png")) { + // check alpha as well + for (int i = 0; i < ib1.length; i++) { + if (ib1[i] != ib2[i]) { + System.err.println("different pixels: " + + Integer.toHexString(ib1[i]) + " " + + Integer.toHexString(ib2[i])); + return false; + } + } + } else { + for (int i = 0; i < ib1.length; i++) { + if ((ib1[i] & 0x00FFFFFF) != (ib2[i] & 0x00FFFFFF)) { + System.err.println("different pixels: " + + Integer.toHexString(ib1[i]) + " " + + Integer.toHexString(ib2[i])); + return false; + } + } + } + return true; + } + + private static int[] getImageData(Image image) { + int width = image.getWidth(null); + int height = image.getHeight(null); + BufferedImage bimage = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB); + Graphics2D g2d = bimage.createGraphics(); + try { + g2d.drawImage(image, 0, 0, width, height, null); + } finally { + g2d.dispose(); + } + return bimage.getRGB(0, 0, width, height, null, 0, width); + } + + public static int sign(int n) { + return n < 0 ? -1 : n == 0 ? 0 : 1; + } + +} + + +class ImageDragSource extends ImageTransferer { + boolean[] passedArray; + + ImageDragSource() { + formats = retrieveFormatsToTest(); + passedArray = new boolean[formats.length]; + final DragSourceListener dsl = new DragSourceAdapter() { + public void dragDropEnd(DragSourceDropEvent e) { + System.err.println("Drop was successful=" + e.getDropSuccess()); + notifyTransferSuccess(e.getDropSuccess()); + if (++fi < formats.length) { + leaveFormat(formats[fi]); + } + } + }; + + new DragSource().createDefaultDragGestureRecognizer(frame, + DnDConstants.ACTION_COPY, + dge -> dge.startDrag(null, new ImageSelection(image), dsl)); + leaveFormat(formats[fi]); + } + + + void notifyTransferSuccess(boolean status) { + passedArray[fi] = status; + } +} + + +class ImageDropTarget extends ImageTransferer { + private final Robot robot; + private static Point startPoint, endPoint = new Point(250, 150); + + ImageDropTarget() throws AWTException { + DropTargetAdapter dropTargetAdapter = new DropTargetAdapter() { + @Override + public void drop(DropTargetDropEvent dtde) { + checkImage(dtde); + startImageDrag(); + } + }; + new DropTarget(frame, dropTargetAdapter); + robot = new Robot(); + } + + + void checkImage(DropTargetDropEvent dtde) { + final Transferable t = dtde.getTransferable(); + if (t.isDataFlavorSupported(DataFlavor.imageFlavor)) { + dtde.acceptDrop(DnDConstants.ACTION_COPY); + Image im; + try { + im = (Image) t.getTransferData(DataFlavor.imageFlavor); + System.err.println("getTransferData was successful"); + } catch (Exception e) { + System.err.println("Can't getTransferData: " + e); + dtde.dropComplete(false); + notifyTransferSuccess(false); + return; + } + + if (im == null) { + System.err.println("getTransferData returned null"); + dtde.dropComplete(false); + notifyTransferSuccess(false); + } else if (areImagesIdentical(image, im)) { + dtde.dropComplete(true); + notifyTransferSuccess(true); + } else { + System.err.println("transferred image is different from initial image"); + dtde.dropComplete(false); + notifyTransferSuccess(false); + } + + } else { + System.err.println("imageFlavor is not supported by Transferable"); + dtde.rejectDrop(); + notifyTransferSuccess(false); + } + } + + void startImageDrag() { + leaveFormat(formats[fi]); + new Thread(() -> { + try { + Thread.sleep(1000); + } catch (InterruptedException e) { + e.printStackTrace(); + // Exit from the child process + System.exit(1); + } + robot.mouseMove(startPoint.x, startPoint.y); + robot.mousePress(InputEvent.BUTTON1_MASK); + for (Point p = new Point(startPoint); !p.equals(endPoint); + p.translate(sign(endPoint.x - p.x), sign(endPoint.y - p.y))) { + robot.mouseMove(p.x, p.y); + try { + Thread.sleep(50); + } catch (InterruptedException e) { + e.printStackTrace(); + } + } + + robot.mouseRelease(InputEvent.BUTTON1_MASK); + }).start(); + } + + void notifyTransferSuccess(boolean status) { + if (status) { + System.err.println("format passed: " + formats[fi]); + } else { + System.err.println("format failed: " + formats[fi]); + System.exit(1); + } + if (fi < formats.length - 1) { + leaveFormat(formats[++fi]); + } else { + new Thread(() -> { + try { + Thread.sleep(500); + } catch (InterruptedException e) { + e.printStackTrace(); + } + System.exit(0); + }).start(); + } + } + + + public static void main(String[] args) { + try { + ImageDropTarget idt = new ImageDropTarget(); + + int x = Integer.parseInt(args[0]); + int y = Integer.parseInt(args[1]); + startPoint = new Point(Integer.parseInt(args[2]), Integer.parseInt(args[3])); + + idt.formats = new String[args.length - 4]; + System.arraycopy(args, 4, idt.formats, 0, args.length - 4); + leaveFormat(idt.formats[0]); + + idt.frame.setLocation(x, y); + idt.frame.setVisible(true); + Util.sync(); + + idt.startImageDrag(); + } catch (Throwable e) { + e.printStackTrace(); + System.exit(1); + } + } + +} + + +class ImageSelection implements Transferable { + private static final int IMAGE = 0; + private static final DataFlavor[] flavors = {DataFlavor.imageFlavor}; + private Image data; + + public ImageSelection(Image data) { + this.data = data; + } + + @Override + public DataFlavor[] getTransferDataFlavors() { + // returning flavors itself would allow client code to modify + // our internal behavior + return flavors.clone(); + } + + @Override + public boolean isDataFlavorSupported(DataFlavor flavor) { + return Stream.of(flavor).anyMatch(flavor::equals); + } + + @Override + public Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException { + if (flavor.equals(flavors[IMAGE])) { + return data; + } else { + throw new UnsupportedFlavorException(flavor); + } + } +}