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

/*******************************************************************************
 * Copyright (c) 2000, 2006 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
 * Port to the D programming language:
 *     Frank Benoit <benoit@tionex.de>
 *******************************************************************************/
module org.eclipse.swt.internal.image.PngInputStream;

import java.io.InputStream;
import org.eclipse.swt.internal.image.PngIdatChunk;
import org.eclipse.swt.internal.image.PngChunkReader;
import org.eclipse.swt.internal.image.PngChunk;

import java.lang.all;

public class PngInputStream : InputStream {

    alias InputStream.read read;

    PngChunkReader reader;
    PngChunk chunk;
    int offset, length;

    const static int DATA_OFFSET = 8;

public this(PngIdatChunk chunk, PngChunkReader reader) {
    this.chunk = chunk;
    this.reader = reader;
    length = chunk.getLength();
    offset = 0;
}

private bool checkChunk()  {
    while (offset is length) {
        chunk = reader.readNextChunk();
        if (chunk is null) throw new IOException("no data");
        if (chunk.getChunkType() is PngChunk.CHUNK_IEND) return false;
        if (chunk.getChunkType() !is PngChunk.CHUNK_IDAT) throw new IOException("");
        length = chunk.getLength();
        offset = 0;
    }
    return true;
}

public override void close()  {
    chunk = null;
}

public override int read()  {
    if (chunk is null) throw new IOException("");
    if (offset is length && !checkChunk()) return -1;
    int b = chunk.reference[DATA_OFFSET + offset] & 0xFF;
    offset++;
    return b;
}

public override int read(byte[] b, int off, int len)  {
    if (chunk is null) throw new IOException("");
    if (offset is length && !checkChunk()) return -1;
    len = Math.min(len, length - offset);
    System.arraycopy(chunk.reference, DATA_OFFSET + offset, b, off, len);
    offset += len;
    return len;
}
}