Mercurial > projects > dwt2
view org.eclipse.swt.gtk.linux.x86/src/org/eclipse/swt/dnd/ImageTransfer.d @ 120:536e43f63c81
Comprehensive update for Win32/Linux32 dmd-2.053/dmd-1.068+Tango-r5661
===D2===
* added [Try]Immutable/Const/Shared templates to work with differenses in D1/D2 instead of version statements
used these templates to work with strict type storage rules of dmd-2.053
* com.ibm.icu now also compilable with D2, but not tested yet
* small fixes
Snippet288 - shared data is in TLS
===Phobos===
* fixed critical bugs in Phobos implemention
completely incorrect segfault prone fromStringz (Linux's port ruthless killer)
terrible, incorrect StringBuffer realization (StyledText killer)
* fixed small bugs as well
Snippet72 - misprint in the snippet
* implemented missed functionality for Phobos
ByteArrayOutputStream implemented (image loading available)
formatting correctly works for all DWT's cases
As a result, folowing snippets now works with Phobos (Snippet### - what is fixed):
Snippet24, 42, 111, 115, 130, 235, 276 - bad string formatting
Snippet48, 282 - crash on image loading
Snippet163, 189, 211, 213, 217, 218, 222 - crash on copy/cut in StyledText
Snippet244 - hang-up
===Tango===
* few changes for the latest Tango trunc-r5661
* few small performance improvments
===General===
* implMissing-s for only one version changed to implMissingInTango/InPhobos
* incorrect calls to Format in toString-s fixed
* fixed loading \uXXXX characters in ResourceBundle
* added good UTF-8 support for StyledText, TextLayout (Win32) and friends
UTF functions revised and tested. It is now in java.nonstandard.*Utf modules
StyledText and TextLayout (Win32) modules revised for UTF-8 support
* removed small diferences in most identical files in *.swt.* folders
*.swt.internal.image, *.swt.events and *.swt.custom are identical in Win32/Linux32
now 179 of 576 (~31%) files in *.swt.* folders are fully identical
* Win32: snippets now have right subsystem, pretty icons and native system style controls
* small fixes in snippets
Snippet44 - it's not Snippet44
Snippet212 - functions work with different images and offsets arrays
Win32: Snippet282 - crash on close if the button has an image
Snippet293 - setGrayed is commented
and others
Win32: As a result, folowing snippets now works
Snippet68 - color doesn't change
Snippet163, 189, 211, 213, 217, 218, 222 - UTF-8 issues (see above)
Snippet193 - no tabel headers
author | Denis Shelomovskij <verylonglogin.reg@gmail.com> |
---|---|
date | Sat, 09 Jul 2011 15:50:20 +0300 |
parents | c01d033c633a |
children |
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/******************************************************************************* * Copyright (c) 2000, 2008 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation *******************************************************************************/ module org.eclipse.swt.dnd.ImageTransfer; import org.eclipse.swt.SWT; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.graphics.ImageData; import org.eclipse.swt.internal.Converter; import org.eclipse.swt.internal.gtk.OS; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.dnd.ByteArrayTransfer; import org.eclipse.swt.dnd.TransferData; import org.eclipse.swt.dnd.DND; import java.lang.all; /** * The class <code>ImageTransfer</code> provides a platform specific mechanism * for converting an Image represented as a java <code>ImageData</code> to a * platform specific representation of the data and vice versa. * * <p>An example of a java <code>ImageData</code> is shown below:</p> * * <code><pre> * Image image = new Image(display, "C:\temp\img1.gif"); * ImageData imgData = image.getImageData(); * </code></pre> * * @see Transfer * * @since 3.4 */ public class ImageTransfer : ByteArrayTransfer { private static ImageTransfer _instance; private static const String JPEG = "image/jpge"; //$NON-NLS-1$ private static int JPEG_ID; private static const String PNG = "image/png"; //$NON-NLS-1$ private static int PNG_ID; private static const String BMP = "image/bmp"; //$NON-NLS-1$ private static int BMP_ID; private static const String EPS = "image/eps"; //$NON-NLS-1$ private static int EPS_ID; private static const String PCX = "image/pcx"; //$NON-NLS-1$ private static int PCX_ID; private static const String PPM = "image/ppm"; //$NON-NLS-1$ private static int PPM_ID; private static const String RGB = "image/ppm"; //$NON-NLS-1$ private static int RGB_ID; private static const String TGA = "image/tga"; //$NON-NLS-1$ private static int TGA_ID; private static const String XBM = "image/xbm"; //$NON-NLS-1$ private static int XBM_ID; private static const String XPM = "image/xpm"; //$NON-NLS-1$ private static int XPM_ID; private static const String XV = "image/xv"; //$NON-NLS-1$ private static int XV_ID; static this(){ JPEG_ID = registerType(JPEG); PNG_ID = registerType(PNG); BMP_ID = registerType(BMP); EPS_ID = registerType(EPS); PCX_ID = registerType(PCX); PPM_ID = registerType(PPM); RGB_ID = registerType(RGB); TGA_ID = registerType(TGA); XBM_ID = registerType(XBM); XPM_ID = registerType(XPM); XV_ID = registerType(XV); _instance = new ImageTransfer(); } private this() { } /** * Returns the singleton instance of the ImageTransfer class. * * @return the singleton instance of the ImageTransfer class */ public static ImageTransfer getInstance () { return _instance; } /** * This implementation of <code>javaToNative</code> converts an ImageData object represented * by java <code>ImageData</code> to a platform specific representation. * * @param object a java <code>ImageData</code> containing the ImageData to be converted * @param transferData an empty <code>TransferData</code> object that will * be filled in on return with the platform specific format of the data * * @see Transfer#nativeToJava */ public void javaToNative(Object object, TransferData transferData) { if (!checkImage(object) || !isSupportedType(transferData)) { DND.error(DND.ERROR_INVALID_DATA); } if (OS.GTK_VERSION < OS.buildVERSION (2, 4, 0)) return; ImageData imgData = cast(ImageData)object; if (imgData is null) SWT.error(SWT.ERROR_NULL_ARGUMENT); Image image = new Image(Display.getCurrent(), imgData); auto pixmap = image.pixmap; int width = imgData.width; int height = imgData.height; auto pixbuf = OS.gdk_pixbuf_new(OS.GDK_COLORSPACE_RGB, true, 8, width, height); if (pixbuf is null) SWT.error(SWT.ERROR_NO_HANDLES); auto colormap = OS.gdk_colormap_get_system(); OS.gdk_pixbuf_get_from_drawable(pixbuf, pixmap, colormap, 0, 0, 0, 0, width, height); String typeStr = ""; if (transferData.type is cast(void*)JPEG_ID) typeStr = "jpeg"; if (transferData.type is cast(void*)PNG_ID) typeStr = "png"; if (transferData.type is cast(void*)BMP_ID) typeStr = "bmp"; if (transferData.type is cast(void*)EPS_ID) typeStr = "eps"; if (transferData.type is cast(void*)PCX_ID) typeStr = "pcx"; if (transferData.type is cast(void*)PPM_ID) typeStr = "ppm"; if (transferData.type is cast(void*)RGB_ID) typeStr = "rgb"; if (transferData.type is cast(void*)TGA_ID) typeStr = "tga"; if (transferData.type is cast(void*)XBM_ID) typeStr = "xbm"; if (transferData.type is cast(void*)XPM_ID) typeStr = "xpm"; if (transferData.type is cast(void*)XV_ID) typeStr = "xv"; auto type = typeStr.ptr; char* buffer; uint len; if (type is null) return; OS.gdk_pixbuf_save_to_buffer0(pixbuf, &buffer, &len, type, null); OS.g_object_unref(pixbuf); image.dispose(); transferData.pValue = buffer; transferData.length = (len + 3) / 4 * 4; transferData.result = 1; transferData.format = 32; } /** * This implementation of <code>nativeToJava</code> converts a platform specific * representation of an image to java <code>ImageData</code>. * * @param transferData the platform specific representation of the data to be converted * @return a java <code>ImageData</code> of the image if the conversion was successful; * otherwise null * * @see Transfer#javaToNative */ public Object nativeToJava(TransferData transferData) { ImageData imgData = null; if (transferData.length > 0) { auto loader = OS.gdk_pixbuf_loader_new(); OS.gdk_pixbuf_loader_write(loader, transferData.pValue, transferData.length, null); OS.gdk_pixbuf_loader_close(loader, null); auto pixbuf = OS.gdk_pixbuf_loader_get_pixbuf(loader); if (pixbuf !is null) { OS.g_object_ref(pixbuf); GdkPixmap* pixmap_return; OS.gdk_pixbuf_render_pixmap_and_mask(pixbuf, &pixmap_return, null, 0); auto handle = pixmap_return; if (handle is null) SWT.error(SWT.ERROR_NO_HANDLES); OS.g_object_unref(loader); Image img = Image.gtk_new(Display.getCurrent(), SWT.BITMAP, handle, null); imgData = img.getImageData(); img.dispose(); } } return imgData; } protected int[] getTypeIds(){ return [JPEG_ID, PNG_ID, BMP_ID, EPS_ID, PCX_ID, PPM_ID, RGB_ID, TGA_ID, XBM_ID, XPM_ID, XV_ID]; } protected String[] getTypeNames(){ return [JPEG, PNG, BMP, EPS, PCX, PPM, RGB, TGA, XBM, XPM, XV]; } bool checkImage(Object object) { if (object is null || !( null !is cast(ImageData)object )) return false; return true; } protected bool validate(Object object) { return checkImage(object); } }