/**
* 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);
}
/**
* Returns a {@link Font} based on its name, height and style. Windows-specific strikeout and
* underline flags are also supported.
*
* @param name the name of the font
* @param size the size of the font
* @param style the style of the font
* @param strikeout the strikeout flag (warning: Windows only)
* @param underline the underline flag (warning: Windows only)
* @return {@link Font} The font matching the name, height, style, strikeout and underline
*/
public static Font getFont(
String name, int size, int style, boolean strikeout, boolean underline) {
String fontName = name + '|' + size + '|' + style + '|' + strikeout + '|' + underline;
Font font = m_fontMap.get(fontName);
if (font == null) {
FontData fontData = new FontData(name, size, style);
if (strikeout || underline) {
try {
Class<?> logFontClass =
Class.forName("org.eclipse.swt.internal.win32.LOGFONT"); // $NON-NLS-1$
Object logFont = FontData.class.getField("data").get(fontData); // $NON-NLS-1$
if (logFont != null && logFontClass != null) {
if (strikeout) {
logFontClass
.getField("lfStrikeOut")
.set(logFont, Byte.valueOf((byte) 1)); // $NON-NLS-1$
}
if (underline) {
logFontClass
.getField("lfUnderline")
.set(logFont, Byte.valueOf((byte) 1)); // $NON-NLS-1$
}
}
} catch (Throwable e) {
System.err.println(
"Unable to set underline or strikeout"
+ " (probably on a non-Windows platform). "
+ e); //$NON-NLS-1$ //$NON-NLS-2$
}
}
font = new Font(Display.getCurrent(), fontData);
m_fontMap.put(fontName, font);
}
return font;
}
/**
* Retuns an URL based on a plugin and file path
*
* @param plugin Object The plugin containing the file path
* @param name String The file path
* @return URL The URL representing the file at the specified path
* @throws Exception
*/
@SuppressWarnings("unchecked") // $NON-NLS-1$
private static URL getPluginImageURL(Object plugin, String name) throws Exception {
// try to work with 'plugin' as with OSGI BundleContext
try {
Class bundleClass = Class.forName("org.osgi.framework.Bundle"); // $NON-NLS-1$
Class bundleContextClass = Class.forName("org.osgi.framework.BundleContext"); // $NON-NLS-1$
if (bundleContextClass.isAssignableFrom(plugin.getClass())) {
Method getBundleMethod =
bundleContextClass.getMethod("getBundle", new Class[] {}); // $NON-NLS-1$
Object bundle = getBundleMethod.invoke(plugin, new Object[] {});
//
Class ipathClass = Class.forName("org.eclipse.core.runtime.IPath"); // $NON-NLS-1$
Class pathClass = Class.forName("org.eclipse.core.runtime.Path"); // $NON-NLS-1$
Constructor pathConstructor = pathClass.getConstructor(new Class[] {String.class});
Object path = pathConstructor.newInstance(new Object[] {name});
//
Class platformClass = Class.forName("org.eclipse.core.runtime.Platform"); // $NON-NLS-1$
Method findMethod =
platformClass.getMethod("find", new Class[] {bundleClass, ipathClass}); // $NON-NLS-1$
return (URL) findMethod.invoke(null, new Object[] {bundle, path});
}
} catch (Throwable e) {
// Ignore any exceptions
}
// else work with 'plugin' as with usual Eclipse plugin
{
Class pluginClass = Class.forName("org.eclipse.core.runtime.Plugin"); // $NON-NLS-1$
if (pluginClass.isAssignableFrom(plugin.getClass())) {
//
Class ipathClass = Class.forName("org.eclipse.core.runtime.IPath"); // $NON-NLS-1$
Class pathClass = Class.forName("org.eclipse.core.runtime.Path"); // $NON-NLS-1$
Constructor pathConstructor = pathClass.getConstructor(new Class[] {String.class});
Object path = pathConstructor.newInstance(new Object[] {name});
//
Method findMethod = pluginClass.getMethod("find", new Class[] {ipathClass}); // $NON-NLS-1$
return (URL) findMethod.invoke(plugin, new Object[] {path});
}
}
return null;
}
static FileFormat getFileFormat(LEDataInputStream stream, String format) throws Exception {
Class clazz = Class.forName(FORMAT_PACKAGE + '.' + format + FORMAT_SUFFIX);
FileFormat fileFormat = (FileFormat) clazz.newInstance();
if (fileFormat.isFileFormat(stream)) return fileFormat;
return null;
}
