projects/dwt-linux: dwt/internal/image/LEDataInputStream.d annotate

annotate dwt/internal/image/LEDataInputStream.d @ 259:c0d810de7093

Update SWT 3.4M7 to 3.4

author	Frank Benoit <benoit@tionex.de>
date	Sun, 29 Jun 2008 14:33:38 +0200
parents	ce446666f5a2
children

rev	line source
146 a3471c255cd2 bugfixes Frank Benoit <benoit@tionex.de> parents: 131 diff changeset	1 /*******************************************************************************
259 c0d810de7093 Update SWT 3.4M7 to 3.4 Frank Benoit <benoit@tionex.de> parents: 240 diff changeset	2 * Copyright (c) 2000, 2007 IBM Corporation and others.
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	3 * All rights reserved. This program and the accompanying materials
0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	4 * are made available under the terms of the Eclipse Public License v1.0
0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	5 * which accompanies this distribution, and is available at
0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	6 * http://www.eclipse.org/legal/epl-v10.html
0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	7 *
0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	8 * Contributors:
0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	9 * IBM Corporation - initial API and implementation
108 0f12f6bb9739 author notice Frank Benoit <benoit@tionex.de> parents: 59 diff changeset	10 * Port to the D programming language:
0f12f6bb9739 author notice Frank Benoit <benoit@tionex.de> parents: 59 diff changeset	11 * Frank Benoit <benoit@tionex.de>
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	12 *******************************************************************************/
0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	13 module dwt.internal.image.LEDataInputStream;
0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	14
0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	15
0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	16 import dwt.dwthelper.InputStream;
25 fc2b263b8a3f Merged back the System.arraycopy and use a System class Frank Benoit <benoit@tionex.de> parents: 13 diff changeset	17 import dwt.dwthelper.System;
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	18 import tango.core.Exception;
0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	19
0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	20 final class LEDataInputStream : InputStream{
0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	21
13 3d9bbe0a83a0 FileFormats Frank Benoit <benoit@tionex.de> parents: 12 diff changeset	22 alias InputStream.read read;
3d9bbe0a83a0 FileFormats Frank Benoit <benoit@tionex.de> parents: 12 diff changeset	23
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	24 InputStream host;
0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	25
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	26 int position;
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	27
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	28 /**
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	29 * The byte array containing the bytes to read.
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	30 */
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	31 protected byte[] buf;
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	32
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	33 /**
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	34 * The current position within the byte array <code>buf</code>. A value
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	35 * equal to buf.length indicates no bytes available. A value of
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	36 * 0 indicates the buffer is full.
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	37 */
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	38 protected int pos;
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	39
0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	40
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	41 public this(InputStream input) {
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	42 this(input, 512);
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	43 }
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	44
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	45 public this(InputStream input, int bufferSize) {
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	46 host = input;
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	47 if (bufferSize > 0) {
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	48 buf = new byte[bufferSize];
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	49 pos = bufferSize;
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	50 }
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	51 else throw new IllegalArgumentException("bufferSize must be greater zero" );
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	52 }
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	53
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	54 public void close() {
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	55 buf = null;
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	56 if (host !is null) {
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	57 host.close();
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	58 host = null;
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	59 }
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	60 }
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	61
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	62 /**
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	63 * Answer how many bytes were read.
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	64 */
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	65 public int getPosition() {
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	66 return position;
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	67 }
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	68
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	69 /**
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	70 * Answers how many bytes are available for reading without blocking
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	71 */
150 f2e04420fd6c reworked overrides and superclass aliases Frank Benoit <benoit@tionex.de> parents: 146 diff changeset	72 public override int available() {
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	73 if (buf is null) throw new IOException("buf is null");
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	74 return (buf.length - pos) + host.available();
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	75 }
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	76
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	77 /**
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	78 * Answer the next byte of the input stream.
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	79 */
150 f2e04420fd6c reworked overrides and superclass aliases Frank Benoit <benoit@tionex.de> parents: 146 diff changeset	80 public override int read() {
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	81 if (buf is null) throw new IOException("buf is null");
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	82 if (pos < buf.length) {
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	83 position++;
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	84 return (buf[pos++] & 0xFF);
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	85 }
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	86 int c = host.read();
131 ee2998e3cfaa replace == and != Frank Benoit <benoit@tionex.de> parents: 108 diff changeset	87 if (c !is -1 ) position++;
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	88 return c;
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	89 }
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	90
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	91 /**
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	92 * Don't imitate the JDK behaviour of reading a random number
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	93 * of bytes when you can actually read them all.
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	94 */
150 f2e04420fd6c reworked overrides and superclass aliases Frank Benoit <benoit@tionex.de> parents: 146 diff changeset	95 public override int read(byte b[], int off, int len) {
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	96 int read = 0, count;
131 ee2998e3cfaa replace == and != Frank Benoit <benoit@tionex.de> parents: 108 diff changeset	97 while (read !is len && (count = readData(b, off, len - read)) !is -1) {
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	98 off += count;
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	99 read += count;
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	100 }
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	101 position += read;
131 ee2998e3cfaa replace == and != Frank Benoit <benoit@tionex.de> parents: 108 diff changeset	102 if (read is 0 && read !is len) return -1;
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	103 return read;
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	104 }
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	105
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	106 /**
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	107 * Reads at most <code>length</code> bytes from this LEDataInputStream and
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	108 * stores them in byte array <code>buffer</code> starting at <code>offset</code>.
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	109 * <p>
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	110 * Answer the number of bytes actually read or -1 if no bytes were read and
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	111 * end of stream was encountered. This implementation reads bytes from
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	112 * the pushback buffer first, then the target stream if more bytes are required
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	113 * to satisfy <code>count</code>.
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	114 * </p>
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	115 * @param buffer the byte array in which to store the read bytes.
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	116 * @param offset the offset in <code>buffer</code> to store the read bytes.
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	117 * @param length the maximum number of bytes to store in <code>buffer</code>.
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	118 *
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	119 * @return int the number of bytes actually read or -1 if end of stream.
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	120 *
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	121 * @exception java.io.IOException if an IOException occurs.
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	122 */
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	123 private int readData(byte[] buffer, int offset, int len) {
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	124 if (buf is null) throw new IOException("buf is null");
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	125 if (offset < 0 \|\| offset > buffer.length \|\|
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	126 len < 0 \|\| (len > buffer.length - offset)) {
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	127 throw new ArrayBoundsException(__FILE__,__LINE__);
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	128 }
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	129
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	130 int cacheCopied = 0;
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	131 int newOffset = offset;
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	132
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	133 // Are there pushback bytes available?
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	134 int available = buf.length - pos;
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	135 if (available > 0) {
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	136 cacheCopied = (available >= len) ? len : available;
25 fc2b263b8a3f Merged back the System.arraycopy and use a System class Frank Benoit <benoit@tionex.de> parents: 13 diff changeset	137 System.arraycopy(buf, pos, buffer, newOffset, cacheCopied);
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	138 newOffset += cacheCopied;
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	139 pos += cacheCopied;
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	140 }
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	141
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	142 // Have we copied enough?
131 ee2998e3cfaa replace == and != Frank Benoit <benoit@tionex.de> parents: 108 diff changeset	143 if (cacheCopied is len) return len;
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	144
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	145 int inCopied = host.read( buffer, newOffset, len - cacheCopied );
131 ee2998e3cfaa replace == and != Frank Benoit <benoit@tionex.de> parents: 108 diff changeset	146 if( inCopied is -1 ) inCopied = -1;
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	147 if (inCopied > 0 ) return inCopied + cacheCopied;
131 ee2998e3cfaa replace == and != Frank Benoit <benoit@tionex.de> parents: 108 diff changeset	148 if (cacheCopied is 0) return inCopied;
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	149 return cacheCopied;
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	150 }
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	151
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	152 /**
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	153 * Answer an integer comprised of the next
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	154 * four bytes of the input stream.
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	155 */
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	156 public int readInt() {
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	157 byte[4] buf = void;
146 a3471c255cd2 bugfixes Frank Benoit <benoit@tionex.de> parents: 131 diff changeset	158 read(buf);
240 ce446666f5a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 150 diff changeset	159 return ((buf[3] & 0xFF) << 24) \|
ce446666f5a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 150 diff changeset	160 ((buf[2] & 0xFF) << 16) \|
ce446666f5a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 150 diff changeset	161 ((buf[1] & 0xFF) << 8) \|
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	162 (buf[0] & 0xFF);
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	163 }
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	164
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	165 /**
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	166 * Answer a short comprised of the next
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	167 * two bytes of the input stream.
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	168 */
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	169 public short readShort() {
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	170 byte[2] buf = void;
146 a3471c255cd2 bugfixes Frank Benoit <benoit@tionex.de> parents: 131 diff changeset	171 read(buf);
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	172 return cast(short)(((buf[1] & 0xFF) << 8) \| (buf[0] & 0xFF));
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	173 }
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	174
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	175 /**
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	176 * Push back the entire content of the given buffer <code>b</code>.
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	177 * <p>
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	178 * The bytes are pushed so that they would be read back b[0], b[1], etc.
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	179 * If the push back buffer cannot handle the bytes copied from <code>b</code>,
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	180 * an IOException will be thrown and no byte will be pushed back.
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	181 * </p>
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	182 *
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	183 * @param b the byte array containing bytes to push back into the stream
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	184 *
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	185 * @exception java.io.IOException if the pushback buffer is too small
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	186 */
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	187 public void unread(byte[] b) {
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	188 int l = b.length;
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	189 if (l > pos) throw new IOException("cannot unread");
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	190 position -= l;
8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	191 pos -= l;
25 fc2b263b8a3f Merged back the System.arraycopy and use a System class Frank Benoit <benoit@tionex.de> parents: 13 diff changeset	192 System.arraycopy(b, 0, buf, pos, l);
59 8cec8f536af3 All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed. Frank Benoit <benoit@tionex.de> parents: 25 diff changeset	193 }
12 0c78fa47d476 helper classes Frank Benoit <benoit@tionex.de> parents: diff changeset	194 }

Mercurial > projects > dwt-linux

annotate dwt/internal/image/LEDataInputStream.d @ 259:c0d810de7093