diff options
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/common/org/eclipse/swt/internal/image/FileFormat.java')
-rwxr-xr-x | bundles/org.eclipse.swt/Eclipse SWT/common/org/eclipse/swt/internal/image/FileFormat.java | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/common/org/eclipse/swt/internal/image/FileFormat.java b/bundles/org.eclipse.swt/Eclipse SWT/common/org/eclipse/swt/internal/image/FileFormat.java deleted file mode 100755 index 074b038bb5..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/common/org/eclipse/swt/internal/image/FileFormat.java +++ /dev/null @@ -1,129 +0,0 @@ -/******************************************************************************* - * 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 - *******************************************************************************/ -package org.eclipse.swt.internal.image; - - -import java.io.*; -import org.eclipse.swt.*; -import org.eclipse.swt.graphics.*; - -/** - * Abstract factory class for loading/unloading images from files or streams - * in various image file formats. - * - */ -public abstract class FileFormat { - static final String FORMAT_PACKAGE = "org.eclipse.swt.internal.image"; //$NON-NLS-1$ - static final String FORMAT_SUFFIX = "FileFormat"; //$NON-NLS-1$ - static final String[] FORMATS = {"WinBMP", "WinBMP", "GIF", "WinICO", "JPEG", "PNG", "TIFF", "OS2BMP"}; //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$//$NON-NLS-5$ //$NON-NLS-6$//$NON-NLS-7$//$NON-NLS-8$ - - LEDataInputStream inputStream; - LEDataOutputStream outputStream; - ImageLoader loader; - int compression; - -/** - * Return whether or not the specified input stream - * represents a supported file format. - */ -abstract boolean isFileFormat(LEDataInputStream stream); - -abstract ImageData[] loadFromByteStream(); - -/** - * Read the specified input stream, and return the - * device independent image array represented by the stream. - */ -public ImageData[] loadFromStream(LEDataInputStream stream) { - try { - inputStream = stream; - return loadFromByteStream(); - } catch (Exception e) { - if (e instanceof IOException) { - SWT.error(SWT.ERROR_IO, e); - } else { - SWT.error(SWT.ERROR_INVALID_IMAGE, e); - } - return null; - } -} - -/** - * Read the specified input stream using the specified loader, and - * return the device independent image array represented by the stream. - */ -public static ImageData[] load(InputStream is, ImageLoader loader) { - FileFormat fileFormat = null; - LEDataInputStream stream = new LEDataInputStream(is); - boolean isSupported = false; - for (int i = 1; i < FORMATS.length; i++) { - if (FORMATS[i] != null) { - try { - Class clazz = Class.forName(FORMAT_PACKAGE + '.' + FORMATS[i] + FORMAT_SUFFIX); - fileFormat = (FileFormat) clazz.newInstance(); - if (fileFormat.isFileFormat(stream)) { - isSupported = true; - break; - } - } catch (ClassNotFoundException e) { - FORMATS[i] = null; - } catch (Exception e) { - } - } - } - if (!isSupported) SWT.error(SWT.ERROR_UNSUPPORTED_FORMAT); - fileFormat.loader = loader; - return fileFormat.loadFromStream(stream); -} - -/** - * Write the device independent image array stored in the specified loader - * to the specified output stream using the specified file format. - */ -public static void save(OutputStream os, int format, ImageLoader loader) { - if (format < 0 || format >= FORMATS.length) SWT.error(SWT.ERROR_UNSUPPORTED_FORMAT); - if (FORMATS[format] == null) SWT.error(SWT.ERROR_UNSUPPORTED_FORMAT); - if (loader.data == null || loader.data.length < 1) SWT.error(SWT.ERROR_INVALID_ARGUMENT); - - LEDataOutputStream stream = new LEDataOutputStream(os); - FileFormat fileFormat = null; - try { - Class clazz = Class.forName(FORMAT_PACKAGE + '.' + FORMATS[format] + FORMAT_SUFFIX); - fileFormat = (FileFormat) clazz.newInstance(); - } catch (Exception e) { - SWT.error(SWT.ERROR_UNSUPPORTED_FORMAT); - } - if (format == SWT.IMAGE_BMP_RLE) { - switch (loader.data[0].depth) { - case 8: fileFormat.compression = 1; break; - case 4: fileFormat.compression = 2; break; - } - } - fileFormat.unloadIntoStream(loader, stream); -} - -abstract void unloadIntoByteStream(ImageLoader loader); - -/** - * Write the device independent image array stored in the specified loader - * to the specified output stream. - */ -public void unloadIntoStream(ImageLoader loader, LEDataOutputStream stream) { - try { - outputStream = stream; - unloadIntoByteStream(loader); - outputStream.flush(); - } catch (Exception e) { - try {outputStream.flush();} catch (Exception f) {} - SWT.error(SWT.ERROR_IO, e); - } -} -} |