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comparison dwt/internal/image/PngInputStream.d @ 6:b903c16b6f48

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Removed throws decls
author Frank Benoit <benoit@tionex.de>
date Wed, 27 Aug 2008 14:10:03 +0200
parents 1a8b3cb347e0
children 5123b17c98ef
comparison
equal deleted inserted replaced
5:1a8b3cb347e0 6:b903c16b6f48
25 this.reader = reader; 25 this.reader = reader;
26 length = chunk.getLength(); 26 length = chunk.getLength();
27 offset = 0; 27 offset = 0;
28 } 28 }
29 29
30 private bool checkChunk() throws IOException { 30 private bool checkChunk() {
31 while (offset is length) { 31 while (offset is length) {
32 chunk = reader.readNextChunk(); 32 chunk = reader.readNextChunk();
33 if (chunk is null) throw new IOException(); 33 if (chunk is null) throw new IOException();
34 if (chunk.getChunkType() is PngChunk.CHUNK_IEND) return false; 34 if (chunk.getChunkType() is PngChunk.CHUNK_IEND) return false;
35 if (chunk.getChunkType() !is PngChunk.CHUNK_IDAT) throw new IOException(); 35 if (chunk.getChunkType() !is PngChunk.CHUNK_IDAT) throw new IOException();
37 offset = 0; 37 offset = 0;
38 } 38 }
39 return true; 39 return true;
40 } 40 }
41 41
42 public void close() throws IOException { 42 public void close() {
43 chunk = null; 43 chunk = null;
44 } 44 }
45 45
46 public int read() throws IOException { 46 public int read() {
47 if (chunk is null) throw new IOException(); 47 if (chunk is null) throw new IOException();
48 if (offset is length && !checkChunk()) return -1; 48 if (offset is length && !checkChunk()) return -1;
49 int b = chunk.reference[DATA_OFFSET + offset] & 0xFF; 49 int b = chunk.reference[DATA_OFFSET + offset] & 0xFF;
50 offset++; 50 offset++;
51 return b; 51 return b;
52 } 52 }
53 53
54 public int read(byte[] b, int off, int len) throws IOException { 54 public int read(byte[] b, int off, int len) {
55 if (chunk is null) throw new IOException(); 55 if (chunk is null) throw new IOException();
56 if (offset is length && !checkChunk()) return -1; 56 if (offset is length && !checkChunk()) return -1;
57 len = Math.min(len, length - offset); 57 len = Math.min(len, length - offset);
58 System.arraycopy(chunk.reference, DATA_OFFSET + offset, b, off, len); 58 System.arraycopy(chunk.reference, DATA_OFFSET + offset, b, off, len);
59 offset += len; 59 offset += len;