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[WIP ]reorganized dir structure

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Eyck Jentzsch
2020-06-01 17:26:56 +02:00
parent 3e5ab7b0ac
commit 97693cd0c4
374 changed files with 43 additions and 390 deletions
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plugins/com.minres.scviewer.e4.application/src/org/eclipse/wb/swt/ResourceManager.java Normal file
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/*******************************************************************************
* Copyright (c) 2015 MINRES Technologies GmbH 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:
* MINRES Technologies GmbH - initial API and implementation
*******************************************************************************/
package org.eclipse.wb.swt;
import java.io.File;
import java.io.InputStream;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.resource.CompositeImageDescriptor;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.osgi.framework.Bundle;
import com.minres.scviewer.e4.application.Messages;
/**
* Utility class for managing OS resources associated with SWT/JFace controls such as colors, fonts, images,
* etc.
*
* !!! IMPORTANT !!! Application code must explicitly invoke the <code>dispose()</code> method to release the
* operating system resources managed by cached objects when those objects and OS resources are no longer
* needed (e.g. on application shutdown)
*
* This class may be freely distributed as part of any application or plugin.
* <p>
*
* @author scheglov_ke
* @author Dan Rubel
*/
public class ResourceManager extends SWTResourceManager {
////////////////////////////////////////////////////////////////////////////
//
// Image
//
////////////////////////////////////////////////////////////////////////////
private static Map<ImageDescriptor, Image> m_descriptorImageMap = new HashMap<ImageDescriptor, Image>();
/**
* Returns an {@link ImageDescriptor} stored in the file at the specified path relative to the specified
* class.
*
* @param clazz
* the {@link Class} relative to which to find the image descriptor.
* @param path
* the path to the image file.
* @return the {@link ImageDescriptor} stored in the file at the specified path.
*/
public static ImageDescriptor getImageDescriptor(Class<?> clazz, String path) {
return ImageDescriptor.createFromFile(clazz, path);
}
/**
* Returns an {@link ImageDescriptor} stored in the file at the specified path.
*
* @param path
* the path to the image file.
* @return the {@link ImageDescriptor} stored in the file at the specified path.
*/
public static ImageDescriptor getImageDescriptor(String path) {
try {
return ImageDescriptor.createFromURL(new File(path).toURI().toURL());
} catch (MalformedURLException e) {
return null;
}
}
/**
* Returns an {@link Image} based on the specified {@link ImageDescriptor}.
*
* @param descriptor
* the {@link ImageDescriptor} for the {@link Image}.
* @return the {@link Image} based on the specified {@link ImageDescriptor}.
*/
public static Image getImage(ImageDescriptor descriptor) {
if (descriptor == null) {
return null;
}
Image image = m_descriptorImageMap.get(descriptor);
if (image == null) {
image = descriptor.createImage();
m_descriptorImageMap.put(descriptor, image);
}
return image;
}
/**
* Maps images to decorated images.
*/
@SuppressWarnings("unchecked")
private static Map<Image, Map<Image, Image>>[] m_decoratedImageMap = new Map[LAST_CORNER_KEY];
/**
* Returns an {@link Image} composed of a base image decorated by another image.
*
* @param baseImage
* the base {@link Image} that should be decorated.
* @param decorator
* the {@link Image} to decorate the base image.
* @return {@link Image} The resulting decorated image.
*/
public static Image decorateImage(Image baseImage, Image decorator) {
return decorateImage(baseImage, decorator, BOTTOM_RIGHT);
}
/**
* Returns an {@link Image} composed of a base image decorated by another image.
*
* @param baseImage
* the base {@link Image} that should be decorated.
* @param decorator
* the {@link Image} to decorate the base image.
* @param corner
* the corner to place decorator image.
* @return the resulting decorated {@link Image}.
*/
public static Image decorateImage(final Image baseImage, final Image decorator, final int corner) {
if (corner <= 0 || corner >= LAST_CORNER_KEY) {
throw new IllegalArgumentException(Messages.ResourceManager_0);
}
Map<Image, Map<Image, Image>> cornerDecoratedImageMap = m_decoratedImageMap[corner];
if (cornerDecoratedImageMap == null) {
cornerDecoratedImageMap = new HashMap<Image, Map<Image, Image>>();
m_decoratedImageMap[corner] = cornerDecoratedImageMap;
}
Map<Image, Image> decoratedMap = cornerDecoratedImageMap.get(baseImage);
if (decoratedMap == null) {
decoratedMap = new HashMap<Image, Image>();
cornerDecoratedImageMap.put(baseImage, decoratedMap);
}
//
Image result = decoratedMap.get(decorator);
if (result == null) {
final Rectangle bib = baseImage.getBounds();
final Rectangle dib = decorator.getBounds();
final Point baseImageSize = new Point(bib.width, bib.height);
CompositeImageDescriptor compositImageDesc = new CompositeImageDescriptor() {
@Override
protected void drawCompositeImage(int width, int height) {
drawImage(createCachedImageDataProvider(baseImage), 0, 0);
if (corner == TOP_LEFT) {
drawImage(createCachedImageDataProvider(decorator), 0, 0);
} else if (corner == TOP_RIGHT) {
drawImage(createCachedImageDataProvider(decorator), bib.width - dib.width, 0);
} else if (corner == BOTTOM_LEFT) {
drawImage(createCachedImageDataProvider(decorator), 0, bib.height - dib.height);
} else if (corner == BOTTOM_RIGHT) {
drawImage(createCachedImageDataProvider(decorator), bib.width - dib.width, bib.height - dib.height);
}
}
@Override
protected Point getSize() {
return baseImageSize;
}
};
//
result = compositImageDesc.createImage();
decoratedMap.put(decorator, result);
}
return result;
}
/**
* Dispose all of the cached images.
*/
public static void disposeImages() {
SWTResourceManager.disposeImages();
// dispose ImageDescriptor images
{
for (Iterator<Image> I = m_descriptorImageMap.values().iterator(); I.hasNext();) {
I.next().dispose();
}
m_descriptorImageMap.clear();
}
// dispose decorated images
for (int i = 0; i < m_decoratedImageMap.length; i++) {
Map<Image, Map<Image, Image>> cornerDecoratedImageMap = m_decoratedImageMap[i];
if (cornerDecoratedImageMap != null) {
for (Map<Image, Image> decoratedMap : cornerDecoratedImageMap.values()) {
for (Image image : decoratedMap.values()) {
image.dispose();
}
decoratedMap.clear();
}
cornerDecoratedImageMap.clear();
}
}
// dispose plugin images
{
for (Iterator<Image> I = m_URLImageMap.values().iterator(); I.hasNext();) {
I.next().dispose();
}
m_URLImageMap.clear();
}
}
////////////////////////////////////////////////////////////////////////////
//
// Plugin images support
//
////////////////////////////////////////////////////////////////////////////
/**
* Maps URL to images.
*/
private static Map<String, Image> m_URLImageMap = new HashMap<String, Image>();
/**
* Provider for plugin resources, used by WindowBuilder at design time.
*/
public interface PluginResourceProvider {
URL getEntry(String symbolicName, String path);
}
/**
* Instance of {@link PluginResourceProvider}, used by WindowBuilder at design time.
*/
private static PluginResourceProvider m_designTimePluginResourceProvider = null;
/**
* Returns an {@link Image} based on a plugin and file path.
*
* @param plugin
* the plugin {@link Object} containing the image
* @param name
* the path to the image within the plugin
* @return the {@link Image} stored in the file at the specified path
*
* @deprecated Use {@link #getPluginImage(String, String)} instead.
*/
@Deprecated
public static Image getPluginImage(Object plugin, String name) {
try {
URL url = getPluginImageURL(plugin, name);
if (url != null) {
return getPluginImageFromUrl(url);
}
} catch (Throwable e) {
// Ignore any exceptions
}
return null;
}
/**
* Returns an {@link Image} based on a {@link Bundle} and resource entry path.
*
* @param symbolicName
* the symbolic name of the {@link Bundle}.
* @param path
* the path of the resource entry.
* @return the {@link Image} stored in the file at the specified path.
*/
public static Image getPluginImage(String symbolicName, String path) {
try {
URL url = getPluginImageURL(symbolicName, path);
if (url != null) {
return getPluginImageFromUrl(url);
}
} catch (Throwable e) {
// Ignore any exceptions
}
return null;
}
/**
* Returns an {@link Image} based on given {@link URL}.
*/
private static Image getPluginImageFromUrl(URL url) {
try {
try {
String key = url.toExternalForm();
Image image = m_URLImageMap.get(key);
if (image == null) {
InputStream stream = url.openStream();
try {
image = getImage(stream);
m_URLImageMap.put(key, image);
} finally {
stream.close();
}
}
return image;
} catch (Throwable e) {
// Ignore any exceptions
}
} catch (Throwable e) {
// Ignore any exceptions
}
return null;
}
/**
* Returns an {@link ImageDescriptor} based on a plugin and file path.
*
* @param plugin
* the plugin {@link Object} containing the image.
* @param name
* the path to th eimage within the plugin.
* @return the {@link ImageDescriptor} stored in the file at the specified path.
*
* @deprecated Use {@link #getPluginImageDescriptor(String, String)} instead.
*/
@Deprecated
public static ImageDescriptor getPluginImageDescriptor(Object plugin, String name) {
try {
try {
URL url = getPluginImageURL(plugin, name);
return ImageDescriptor.createFromURL(url);
} catch (Throwable e) {
// Ignore any exceptions
}
} catch (Throwable e) {
// Ignore any exceptions
}
return null;
}
/**
* Returns an {@link ImageDescriptor} based on a {@link Bundle} and resource entry path.
*
* @param symbolicName
* the symbolic name of the {@link Bundle}.
* @param path
* the path of the resource entry.
* @return the {@link ImageDescriptor} based on a {@link Bundle} and resource entry path.
*/
public static ImageDescriptor getPluginImageDescriptor(String symbolicName, String path) {
try {
URL url = getPluginImageURL(symbolicName, path);
if (url != null) {
return ImageDescriptor.createFromURL(url);
}
} catch (Throwable e) {
// Ignore any exceptions
}
return null;
}
/**
* Returns an {@link URL} based on a {@link Bundle} and resource entry path.
*/
private static URL getPluginImageURL(String symbolicName, String path) {
// try runtime plugins
{
Bundle bundle = Platform.getBundle(symbolicName);
if (bundle != null) {
return bundle.getEntry(path);
}
}
// try design time provider
if (m_designTimePluginResourceProvider != null) {
return m_designTimePluginResourceProvider.getEntry(symbolicName, path);
}
// no such resource
return null;
}
/**
* Returns an {@link URL} based on a plugin and file path.
*
* @param plugin
* the plugin {@link Object} containing the file path.
* @param name
* the file path.
* @return the {@link URL} representing the file at the specified path.
* @throws Exception
*/
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[0]); //$NON-NLS-1$
Object bundle = getBundleMethod.invoke(plugin, new Object[0]);
//
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<?> IPathClass = Class.forName("org.eclipse.core.runtime.IPath"); //$NON-NLS-1$
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<?> 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<?> IPathClass = Class.forName("org.eclipse.core.runtime.IPath"); //$NON-NLS-1$
Method findMethod = PluginClass.getMethod("find", new Class[]{IPathClass}); //$NON-NLS-1$
return (URL) findMethod.invoke(plugin, new Object[]{path});
}
}
return null;
}
////////////////////////////////////////////////////////////////////////////
//
// General
//
////////////////////////////////////////////////////////////////////////////
/**
* Dispose of cached objects and their underlying OS resources. This should only be called when the cached
* objects are no longer needed (e.g. on application shutdown).
*/
public static void dispose() {
disposeColors();
disposeFonts();
disposeImages();
}
}

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plugins/com.minres.scviewer.e4.application/src/org/eclipse/wb/swt/SWTResourceManager.java Normal file
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/*******************************************************************************
* Copyright (c) 2015 MINRES Technologies GmbH 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:
* MINRES Technologies GmbH - initial API and implementation
*******************************************************************************/
package org.eclipse.wb.swt;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Cursor;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Display;
import com.minres.scviewer.e4.application.Messages;
/**
* Utility class for managing OS resources associated with SWT controls such as colors, fonts, images, etc.
* <p>
* !!! IMPORTANT !!! Application code must explicitly invoke the <code>dispose()</code> method to release the
* operating system resources managed by cached objects when those objects and OS resources are no longer
* needed (e.g. on application shutdown)
* <p>
* This class may be freely distributed as part of any application or plugin.
* <p>
* @author scheglov_ke
* @author Dan Rubel
*/
public class SWTResourceManager {
////////////////////////////////////////////////////////////////////////////
//
// Color
//
////////////////////////////////////////////////////////////////////////////
private static Map<RGB, Color> m_colorMap = new HashMap<RGB, Color>();
/**
* Returns the system {@link Color} matching the specific ID.
*
* @param systemColorID
* the ID value for the color
* @return the system {@link Color} matching the specific ID
*/
public static Color getColor(int systemColorID) {
Display display = Display.getCurrent();
return display.getSystemColor(systemColorID);
}
/**
* Returns a {@link Color} given its red, green and blue component values.
*
* @param r
* the red component of the color
* @param g
* the green component of the color
* @param b
* the blue component of the color
* @return the {@link Color} matching the given red, green and blue component values
*/
public static Color getColor(int r, int g, int b) {
return getColor(new RGB(r, g, b));
}
/**
* Returns a {@link Color} given its RGB value.
*
* @param rgb
* the {@link RGB} value of the color
* @return the {@link Color} matching the RGB value
*/
public static Color getColor(RGB rgb) {
Color color = m_colorMap.get(rgb);
if (color == null) {
Display display = Display.getCurrent();
color = new Color(display, rgb);
m_colorMap.put(rgb, color);
}
return color;
}
/**
* Dispose of all the cached {@link Color}'s.
*/
public static void disposeColors() {
for (Color color : m_colorMap.values()) {
color.dispose();
}
m_colorMap.clear();
}
////////////////////////////////////////////////////////////////////////////
//
// Image
//
////////////////////////////////////////////////////////////////////////////
/**
* Maps image paths to images.
*/
private static Map<String, Image> m_imageMap = new HashMap<String, Image>();
/**
* Returns an {@link Image} encoded by the specified {@link InputStream}.
*
* @param stream
* the {@link InputStream} encoding the image data
* @return the {@link Image} encoded by the specified input stream
*/
protected static Image getImage(InputStream stream) throws IOException {
try {
Display display = Display.getCurrent();
ImageData data = new ImageData(stream);
if (data.transparentPixel > 0) {
return new Image(display, data, data.getTransparencyMask());
}
return new Image(display, data);
} finally {
stream.close();
}
}
/**
* Returns an {@link Image} stored in the file at the specified path.
*
* @param path
* the path to the image file
* @return the {@link Image} stored in the file at the specified path
*/
public static Image getImage(String path) {
Image image = m_imageMap.get(path);
if (image == null) {
try {
image = getImage(new FileInputStream(path));
m_imageMap.put(path, image);
} catch (Exception e) {
image = getMissingImage();
m_imageMap.put(path, image);
}
}
return image;
}
/**
* Returns an {@link Image} stored in the file at the specified path relative to the specified class.
*
* @param clazz
* the {@link Class} relative to which to find the image
* @param path
* the path to the image file, if starts with <code>'/'</code>
* @return the {@link Image} stored in the file at the specified path
*/
public static Image getImage(Class<?> clazz, String path) {
String key = clazz.getName() + '|' + path;
Image image = m_imageMap.get(key);
if (image == null) {
try {
image = getImage(clazz.getResourceAsStream(path));
m_imageMap.put(key, image);
} catch (Exception e) {
image = getMissingImage();
m_imageMap.put(key, image);
}
}
return image;
}
private static final int MISSING_IMAGE_SIZE = 10;
/**
* @return the small {@link Image} that can be used as placeholder for missing image.
*/
private static Image getMissingImage() {
Image image = new Image(Display.getCurrent(), MISSING_IMAGE_SIZE, MISSING_IMAGE_SIZE);
//
GC gc = new GC(image);
gc.setBackground(getColor(SWT.COLOR_RED));
gc.fillRectangle(0, 0, MISSING_IMAGE_SIZE, MISSING_IMAGE_SIZE);
gc.dispose();
//
return image;
}
/**
* Style constant for placing decorator image in top left corner of base image.
*/
public static final int TOP_LEFT = 1;
/**
* Style constant for placing decorator image in top right corner of base image.
*/
public static final int TOP_RIGHT = 2;
/**
* Style constant for placing decorator image in bottom left corner of base image.
*/
public static final int BOTTOM_LEFT = 3;
/**
* Style constant for placing decorator image in bottom right corner of base image.
*/
public static final int BOTTOM_RIGHT = 4;
/**
* Internal value.
*/
protected static final int LAST_CORNER_KEY = 5;
/**
* Maps images to decorated images.
*/
@SuppressWarnings("unchecked")
private static Map<Image, Map<Image, Image>>[] m_decoratedImageMap = new Map[LAST_CORNER_KEY];
/**
* Returns an {@link Image} composed of a base image decorated by another image.
*
* @param baseImage
* the base {@link Image} that should be decorated
* @param decorator
* the {@link Image} to decorate the base image
* @return {@link Image} The resulting decorated image
*/
public static Image decorateImage(Image baseImage, Image decorator) {
return decorateImage(baseImage, decorator, BOTTOM_RIGHT);
}
/**
* Returns an {@link Image} composed of a base image decorated by another image.
*
* @param baseImage
* the base {@link Image} that should be decorated
* @param decorator
* the {@link Image} to decorate the base image
* @param corner
* the corner to place decorator image
* @return the resulting decorated {@link Image}
*/
public static Image decorateImage(final Image baseImage, final Image decorator, final int corner) {
if (corner <= 0 || corner >= LAST_CORNER_KEY) {
throw new IllegalArgumentException(Messages.SWTResourceManager_0);
}
Map<Image, Map<Image, Image>> cornerDecoratedImageMap = m_decoratedImageMap[corner];
if (cornerDecoratedImageMap == null) {
cornerDecoratedImageMap = new HashMap<Image, Map<Image, Image>>();
m_decoratedImageMap[corner] = cornerDecoratedImageMap;
}
Map<Image, Image> decoratedMap = cornerDecoratedImageMap.get(baseImage);
if (decoratedMap == null) {
decoratedMap = new HashMap<Image, Image>();
cornerDecoratedImageMap.put(baseImage, decoratedMap);
}
//
Image result = decoratedMap.get(decorator);
if (result == null) {
Rectangle bib = baseImage.getBounds();
Rectangle dib = decorator.getBounds();
//
result = new Image(Display.getCurrent(), bib.width, bib.height);
//
GC gc = new GC(result);
gc.drawImage(baseImage, 0, 0);
if (corner == TOP_LEFT) {
gc.drawImage(decorator, 0, 0);
} else if (corner == TOP_RIGHT) {
gc.drawImage(decorator, bib.width - dib.width, 0);
} else if (corner == BOTTOM_LEFT) {
gc.drawImage(decorator, 0, bib.height - dib.height);
} else if (corner == BOTTOM_RIGHT) {
gc.drawImage(decorator, bib.width - dib.width, bib.height - dib.height);
}
gc.dispose();
//
decoratedMap.put(decorator, result);
}
return result;
}
/**
* Dispose all of the cached {@link Image}'s.
*/
public static void disposeImages() {
// dispose loaded images
{
for (Image image : m_imageMap.values()) {
image.dispose();
}
m_imageMap.clear();
}
// dispose decorated images
for (int i = 0; i < m_decoratedImageMap.length; i++) {
Map<Image, Map<Image, Image>> cornerDecoratedImageMap = m_decoratedImageMap[i];
if (cornerDecoratedImageMap != null) {
for (Map<Image, Image> decoratedMap : cornerDecoratedImageMap.values()) {
for (Image image : decoratedMap.values()) {
image.dispose();
}
decoratedMap.clear();
}
cornerDecoratedImageMap.clear();
}
}
}
////////////////////////////////////////////////////////////////////////////
//
// Font
//
////////////////////////////////////////////////////////////////////////////
/**
* Maps font names to fonts.
*/
private static Map<String, Font> m_fontMap = new HashMap<String, Font>();
/**
* Maps fonts to their bold versions.
*/
private static Map<Font, Font> m_fontToBoldFontMap = new HashMap<Font, Font>();
/**
* Returns a {@link Font} based on its name, height and style.
*
* @param name
* the name of the font
* @param height
* the height of the font
* @param style
* the style of the font
* @return {@link Font} The font matching the name, height and style
*/
public static Font getFont(String name, int height, int style) {
return getFont(name, height, style, false, false);
}
/**
* 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;
}
/**
* Returns a bold version of the given {@link Font}.
*
* @param baseFont
* the {@link Font} for which a bold version is desired
* @return the bold version of the given {@link Font}
*/
public static Font getBoldFont(Font baseFont) {
Font font = m_fontToBoldFontMap.get(baseFont);
if (font == null) {
FontData fontDatas[] = baseFont.getFontData();
FontData data = fontDatas[0];
font = new Font(Display.getCurrent(), data.getName(), data.getHeight(), SWT.BOLD);
m_fontToBoldFontMap.put(baseFont, font);
}
return font;
}
/**
* Dispose all of the cached {@link Font}'s.
*/
public static void disposeFonts() {
// clear fonts
for (Font font : m_fontMap.values()) {
font.dispose();
}
m_fontMap.clear();
// clear bold fonts
for (Font font : m_fontToBoldFontMap.values()) {
font.dispose();
}
m_fontToBoldFontMap.clear();
}
////////////////////////////////////////////////////////////////////////////
//
// Cursor
//
////////////////////////////////////////////////////////////////////////////
/**
* Maps IDs to cursors.
*/
private static Map<Integer, Cursor> m_idToCursorMap = new HashMap<Integer, Cursor>();
/**
* Returns the system cursor matching the specific ID.
*
* @param id
* int The ID value for the cursor
* @return Cursor The system cursor matching the specific ID
*/
public static Cursor getCursor(int id) {
Integer key = Integer.valueOf(id);
Cursor cursor = m_idToCursorMap.get(key);
if (cursor == null) {
cursor = new Cursor(Display.getDefault(), id);
m_idToCursorMap.put(key, cursor);
}
return cursor;
}
/**
* Dispose all of the cached cursors.
*/
public static void disposeCursors() {
for (Cursor cursor : m_idToCursorMap.values()) {
cursor.dispose();
}
m_idToCursorMap.clear();
}
////////////////////////////////////////////////////////////////////////////
//
// General
//
////////////////////////////////////////////////////////////////////////////
/**
* Dispose of cached objects and their underlying OS resources. This should only be called when the cached
* objects are no longer needed (e.g. on application shutdown).
*/
public static void dispose() {
disposeColors();
disposeImages();
disposeFonts();
disposeCursors();
}
}