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Diffstat (limited to 'plugins/org.eclipse.emf.cdo.examples.installer/examples/gastro.rcp.table/src/com/swtdesigner/SWTResourceManager.java')
| -rw-r--r-- | plugins/org.eclipse.emf.cdo.examples.installer/examples/gastro.rcp.table/src/com/swtdesigner/SWTResourceManager.java | 513 |
1 files changed, 0 insertions, 513 deletions
diff --git a/plugins/org.eclipse.emf.cdo.examples.installer/examples/gastro.rcp.table/src/com/swtdesigner/SWTResourceManager.java b/plugins/org.eclipse.emf.cdo.examples.installer/examples/gastro.rcp.table/src/com/swtdesigner/SWTResourceManager.java deleted file mode 100644 index d00071980f..0000000000 --- a/plugins/org.eclipse.emf.cdo.examples.installer/examples/gastro.rcp.table/src/com/swtdesigner/SWTResourceManager.java +++ /dev/null @@ -1,513 +0,0 @@ -package com.swtdesigner; - -import org.eclipse.net4j.util.io.IOUtil; - -import org.eclipse.swt.SWT; -import org.eclipse.swt.graphics.Color; -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 java.io.FileInputStream; -import java.io.IOException; -import java.io.InputStream; -import java.util.HashMap; -import java.util.Iterator; -import java.util.Map; - -/** - * 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> - * Copyright (c) 2003 - 2007, Instantiations, Inc. <br> - * All Rights Reserved - * - * @author scheglov_ke - * @author Dan Rubel - */ -@SuppressWarnings({ "rawtypes", "unchecked" }) -public class SWTResourceManager -{ - // ////////////////////////////////////////////////////////////////////////// - // - // Color - // - // ////////////////////////////////////////////////////////////////////////// - private static Map/* <RGB,Color> */m_colorMap = new HashMap(); - - /** - * 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 = (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 (Iterator I = m_colorMap.values().iterator(); I.hasNext();) - { - ((Color)I.next()).dispose(); - } - - m_colorMap.clear(); - } - - // ////////////////////////////////////////////////////////////////////////// - // - // Image - // - // ////////////////////////////////////////////////////////////////////////// - /** - * Maps image paths to images. - */ - private static Map/* <String,Image> */m_imageMap = new HashMap(); - - /** - * 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 = (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 = (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. - */ - 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("Wrong decorate corner"); - } - - Map cornerDecoratedImageMap = m_decoratedImageMap[corner]; - if (cornerDecoratedImageMap == null) - { - cornerDecoratedImageMap = new HashMap(); - m_decoratedImageMap[corner] = cornerDecoratedImageMap; - } - - Map decoratedMap = (Map)cornerDecoratedImageMap.get(baseImage); - if (decoratedMap == null) - { - decoratedMap = new HashMap(); - cornerDecoratedImageMap.put(baseImage, decoratedMap); - } - - Image result = (Image)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 (Iterator I = m_imageMap.values().iterator(); I.hasNext();) - { - ((Image)I.next()).dispose(); - } - - m_imageMap.clear(); - } - - // dispose decorated images - for (int i = 0; i < m_decoratedImageMap.length; i++) - { - Map cornerDecoratedImageMap = m_decoratedImageMap[i]; - if (cornerDecoratedImageMap != null) - { - for (Iterator I = cornerDecoratedImageMap.values().iterator(); I.hasNext();) - { - Map decoratedMap = (Map)I.next(); - for (Iterator J = decoratedMap.values().iterator(); J.hasNext();) - { - Image image = (Image)J.next(); - image.dispose(); - } - - decoratedMap.clear(); - } - - cornerDecoratedImageMap.clear(); - } - } - } - - // ////////////////////////////////////////////////////////////////////////// - // - // Font - // - // ////////////////////////////////////////////////////////////////////////// - /** - * Maps font names to fonts. - */ - private static Map/* <String,Font> */m_fontMap = new HashMap(); - - /** - * Maps fonts to their bold versions. - */ - private static Map/* <Font,Font> */m_fontToBoldFontMap = new HashMap(); - - /** - * 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 = (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, new Byte((byte)1)); //$NON-NLS-1$ - } - - if (underline) - { - logFontClass.getField("lfUnderline").set(logFont, new Byte((byte)1)); //$NON-NLS-1$ - } - } - } - catch (Throwable e) - { - IOUtil.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 = (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 (Iterator iter = m_fontMap.values().iterator(); iter.hasNext();) - { - ((Font)iter.next()).dispose(); - } - - m_fontMap.clear(); - // clear bold fonts - for (Iterator iter = m_fontToBoldFontMap.values().iterator(); iter.hasNext();) - { - ((Font)iter.next()).dispose(); - } - - m_fontToBoldFontMap.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(); - } -} |