diff options
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/graphics/Device.java')
| -rwxr-xr-x | bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/graphics/Device.java | 748 |
1 files changed, 0 insertions, 748 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/graphics/Device.java b/bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/graphics/Device.java deleted file mode 100755 index 932e1d49f6..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/cocoa/org/eclipse/swt/graphics/Device.java +++ /dev/null @@ -1,748 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2009 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.graphics; - -import org.eclipse.swt.*; -import org.eclipse.swt.internal.Compatibility; -import org.eclipse.swt.internal.cocoa.*; - -/** - * This class is the abstract superclass of all device objects, - * such as the Display device and the Printer device. Devices - * can have a graphics context (GC) created for them, and they - * can be drawn on by sending messages to the associated GC. - * - * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> - */ -public abstract class Device implements Drawable { - - /* Debugging */ - public static boolean DEBUG; - boolean debug = DEBUG; - boolean tracking = DEBUG; - Error [] errors; - Object [] objects; - Object trackingLock; - - /* Disposed flag */ - boolean disposed, warnings; - - Color COLOR_BLACK, COLOR_DARK_RED, COLOR_DARK_GREEN, COLOR_DARK_YELLOW, COLOR_DARK_BLUE; - Color COLOR_DARK_MAGENTA, COLOR_DARK_CYAN, COLOR_GRAY, COLOR_DARK_GRAY, COLOR_RED; - Color COLOR_GREEN, COLOR_YELLOW, COLOR_BLUE, COLOR_MAGENTA, COLOR_CYAN, COLOR_WHITE; - - /* System Font */ - Font systemFont; - - NSMutableParagraphStyle paragraphStyle; - - /* Device DPI */ - Point dpi; - - /* - * TEMPORARY CODE. When a graphics object is - * created and the device parameter is null, - * the current Display is used. This presents - * a problem because SWT graphics does not - * reference classes in SWT widgets. The correct - * fix is to remove this feature. Unfortunately, - * too many application programs rely on this - * feature. - */ - protected static Device CurrentDevice; - protected static Runnable DeviceFinder; - static { - try { - Class.forName ("org.eclipse.swt.widgets.Display"); - } catch (ClassNotFoundException e) {} - } - -/* -* TEMPORARY CODE. -*/ -static synchronized Device getDevice () { - if (DeviceFinder != null) DeviceFinder.run(); - Device device = CurrentDevice; - CurrentDevice = null; - return device; -} - -/** - * Constructs a new instance of this class. - * <p> - * You must dispose the device when it is no longer required. - * </p> - * - * @see #create - * @see #init - * - * @since 3.1 - */ -public Device() { - this(null); -} - -/** - * Constructs a new instance of this class. - * <p> - * You must dispose the device when it is no longer required. - * </p> - * - * @param data the DeviceData which describes the receiver - * - * @see #create - * @see #init - * @see DeviceData - */ -public Device(DeviceData data) { - synchronized (Device.class) { - if (data != null) { - debug = data.debug; - tracking = data.tracking; - } - if (tracking) { - errors = new Error [128]; - objects = new Object [128]; - trackingLock = new Object (); - } - if (NSThread.isMainThread()) { - NSAutoreleasePool pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); - NSThread nsthread = NSThread.currentThread(); - NSMutableDictionary dictionary = nsthread.threadDictionary(); - NSString key = NSString.stringWith("SWT_NSAutoreleasePool"); - id obj = dictionary.objectForKey(key); - if (obj == null) { - NSNumber nsnumber = NSNumber.numberWithInteger(pool.id); - dictionary.setObject(nsnumber, key); - } else { - pool.release(); - } - } - //check and create pool - create (data); - init (); - } -} - -/** - * Throws an <code>SWTException</code> if the receiver can not - * be accessed by the caller. This may include both checks on - * the state of the receiver and more generally on the entire - * execution context. This method <em>should</em> be called by - * device implementors to enforce the standard SWT invariants. - * <p> - * Currently, it is an error to invoke any method (other than - * <code>isDisposed()</code> and <code>dispose()</code>) on a - * device that has had its <code>dispose()</code> method called. - * </p><p> - * In future releases of SWT, there may be more or fewer error - * checks and exceptions may be thrown for different reasons. - * <p> - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -protected void checkDevice () { - if (disposed) SWT.error(SWT.ERROR_DEVICE_DISPOSED); -} - -/** - * Creates the device in the operating system. If the device - * does not have a handle, this method may do nothing depending - * on the device. - * <p> - * This method is called before <code>init</code>. - * </p><p> - * Subclasses are supposed to reimplement this method and not - * call the <code>super</code> implementation. - * </p> - * - * @param data the DeviceData which describes the receiver - * - * @see #init - */ -protected void create (DeviceData data) { -} - -/** - * Disposes of the operating system resources associated with - * the receiver. After this method has been invoked, the receiver - * will answer <code>true</code> when sent the message - * <code>isDisposed()</code>. - * - * @see #release - * @see #destroy - * @see #checkDevice - */ -public void dispose () { - synchronized (Device.class) { - if (isDisposed()) return; - checkDevice (); - release (); - destroy (); - disposed = true; - if (tracking) { - synchronized (trackingLock) { - printErrors (); - objects = null; - errors = null; - trackingLock = null; - } - } - } -} - -void dispose_Object (Object object) { - synchronized (trackingLock) { - for (int i=0; i<objects.length; i++) { - if (objects [i] == object) { - objects [i] = null; - errors [i] = null; - return; - } - } - } -} - -/** - * Destroys the device in the operating system and releases - * the device's handle. If the device does not have a handle, - * this method may do nothing depending on the device. - * <p> - * This method is called after <code>release</code>. - * </p><p> - * Subclasses are supposed to reimplement this method and not - * call the <code>super</code> implementation. - * </p> - * - * @see #dispose - * @see #release - */ -protected void destroy () { -} - -/** - * Returns a rectangle describing the receiver's size and location. - * - * @return the bounding rectangle - * - * @exception SWTException <ul> - * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public Rectangle getBounds () { - checkDevice (); - NSRect frame = getPrimaryScreen().frame(); - return new Rectangle((int)frame.x, (int)frame.y, (int)frame.width, (int)frame.height); -} - -/** - * Returns a <code>DeviceData</code> based on the receiver. - * Modifications made to this <code>DeviceData</code> will not - * affect the receiver. - * - * @return a <code>DeviceData</code> containing the device's data and attributes - * - * @exception SWTException <ul> - * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @see DeviceData - */ -public DeviceData getDeviceData () { - checkDevice(); - DeviceData data = new DeviceData (); - data.debug = debug; - data.tracking = tracking; - if (tracking) { - synchronized (trackingLock) { - int count = 0, length = objects.length; - for (int i=0; i<length; i++) { - if (objects [i] != null) count++; - } - int index = 0; - data.objects = new Object [count]; - data.errors = new Error [count]; - for (int i=0; i<length; i++) { - if (objects [i] != null) { - data.objects [index] = objects [i]; - data.errors [index] = errors [i]; - index++; - } - } - } - } else { - data.objects = new Object [0]; - data.errors = new Error [0]; - } - return data; -} - -/** - * Returns a rectangle which describes the area of the - * receiver which is capable of displaying data. - * - * @return the client area - * - * @exception SWTException <ul> - * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @see #getBounds - */ -public Rectangle getClientArea () { - checkDevice (); - return getBounds (); -} - -/** - * Returns the bit depth of the screen, which is the number of - * bits it takes to represent the number of unique colors that - * the screen is currently capable of displaying. This number - * will typically be one of 1, 8, 15, 16, 24 or 32. - * - * @return the depth of the screen - * - * @exception SWTException <ul> - * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public int getDepth () { - checkDevice (); - return (int)/*64*/OS.NSBitsPerPixelFromDepth(getPrimaryScreen().depth()); -} - -/** - * Returns a point whose x coordinate is the horizontal - * dots per inch of the display, and whose y coordinate - * is the vertical dots per inch of the display. - * - * @return the horizontal and vertical DPI - * - * @exception SWTException <ul> - * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public Point getDPI () { - checkDevice (); - return getScreenDPI(); -} - -NSScreen getPrimaryScreen () { - NSArray screens = NSScreen.screens(); - return new NSScreen(screens.objectAtIndex(0)); -} - -/** - * Returns <code>FontData</code> objects which describe - * the fonts that match the given arguments. If the - * <code>faceName</code> is null, all fonts will be returned. - * - * @param faceName the name of the font to look for, or null - * @param scalable if true only scalable fonts are returned, otherwise only non-scalable fonts are returned. - * @return the matching font data - * - * @exception SWTException <ul> - * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public FontData[] getFontList (String faceName, boolean scalable) { - checkDevice (); - if (!scalable) return new FontData[0]; - int count = 0; - NSArray families = NSFontManager.sharedFontManager().availableFontFamilies(); - int /*long*/ familyCount = families.count(); - FontData[] fds = new FontData[100]; - for (int i = 0; i < familyCount; i++) { - NSString nsFamily = new NSString(families.objectAtIndex(i)); - String name = nsFamily.getString(); - NSArray fonts = NSFontManager.sharedFontManager().availableMembersOfFontFamily(nsFamily); - int fontCount = (int)/*64*/fonts.count(); - for (int j = 0; j < fontCount; j++) { - NSArray fontDetails = new NSArray(fonts.objectAtIndex(j)); - String nsName = new NSString(fontDetails.objectAtIndex(0)).getString(); - int /*long*/ weight = new NSNumber(fontDetails.objectAtIndex(2)).integerValue(); - int /*long*/ traits = new NSNumber(fontDetails.objectAtIndex(3)).integerValue(); - int style = SWT.NORMAL; - if ((traits & OS.NSItalicFontMask) != 0) style |= SWT.ITALIC; - if (weight == 9) style |= SWT.BOLD; - if (faceName == null || Compatibility.equalsIgnoreCase(faceName, name)) { - FontData data = new FontData(name, 0, style); - data.nsName = nsName; - if (count == fds.length) { - FontData[] newFds = new FontData[fds.length + 100]; - System.arraycopy(fds, 0, newFds, 0, fds.length); - fds = newFds; - } - fds[count++] = data; - } - } - } - if (count == fds.length) return fds; - FontData[] result = new FontData[count]; - System.arraycopy(fds, 0, result, 0, count); - return result; -} - -Point getScreenDPI () { - NSDictionary dictionary = getPrimaryScreen().deviceDescription(); - NSValue value = new NSValue(dictionary.objectForKey(new id(OS.NSDeviceResolution())).id); - NSSize size = value.sizeValue(); - return new Point((int)size.width, (int)size.height); -} - -/** - * Returns the matching standard color for the given - * constant, which should be one of the color constants - * specified in class <code>SWT</code>. Any value other - * than one of the SWT color constants which is passed - * in will result in the color black. This color should - * not be freed because it was allocated by the system, - * not the application. - * - * @param id the color constant - * @return the matching color - * - * @exception SWTException <ul> - * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @see SWT - */ -public Color getSystemColor (int id) { - checkDevice (); - switch (id) { - case SWT.COLOR_BLACK: return COLOR_BLACK; - case SWT.COLOR_DARK_RED: return COLOR_DARK_RED; - case SWT.COLOR_DARK_GREEN: return COLOR_DARK_GREEN; - case SWT.COLOR_DARK_YELLOW: return COLOR_DARK_YELLOW; - case SWT.COLOR_DARK_BLUE: return COLOR_DARK_BLUE; - case SWT.COLOR_DARK_MAGENTA: return COLOR_DARK_MAGENTA; - case SWT.COLOR_DARK_CYAN: return COLOR_DARK_CYAN; - case SWT.COLOR_GRAY: return COLOR_GRAY; - case SWT.COLOR_DARK_GRAY: return COLOR_DARK_GRAY; - case SWT.COLOR_RED: return COLOR_RED; - case SWT.COLOR_GREEN: return COLOR_GREEN; - case SWT.COLOR_YELLOW: return COLOR_YELLOW; - case SWT.COLOR_BLUE: return COLOR_BLUE; - case SWT.COLOR_MAGENTA: return COLOR_MAGENTA; - case SWT.COLOR_CYAN: return COLOR_CYAN; - case SWT.COLOR_WHITE: return COLOR_WHITE; - } - return COLOR_BLACK; -} - -/** - * Returns a reasonable font for applications to use. - * On some platforms, this will match the "default font" - * or "system font" if such can be found. This font - * should not be freed because it was allocated by the - * system, not the application. - * <p> - * Typically, applications which want the default look - * should simply not set the font on the widgets they - * create. Widgets are always created with the correct - * default font for the class of user-interface component - * they represent. - * </p> - * - * @return a font - * - * @exception SWTException <ul> - * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public Font getSystemFont () { - checkDevice (); - return systemFont; -} - -/** - * Returns <code>true</code> if the underlying window system prints out - * warning messages on the console, and <code>setWarnings</code> - * had previously been called with <code>true</code>. - * - * @return <code>true</code>if warnings are being handled, and <code>false</code> otherwise - * - * @exception SWTException <ul> - * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public boolean getWarnings () { - checkDevice (); - return warnings; -} - -/** - * Initializes any internal resources needed by the - * device. - * <p> - * This method is called after <code>create</code>. - * </p><p> - * If subclasses reimplement this method, they must - * call the <code>super</code> implementation. - * </p> - * - * @see #create - */ -protected void init () { - /* Create the standard colors */ - COLOR_BLACK = new Color (this, 0,0,0); - COLOR_DARK_RED = new Color (this, 0x80,0,0); - COLOR_DARK_GREEN = new Color (this, 0,0x80,0); - COLOR_DARK_YELLOW = new Color (this, 0x80,0x80,0); - COLOR_DARK_BLUE = new Color (this, 0,0,0x80); - COLOR_DARK_MAGENTA = new Color (this, 0x80,0,0x80); - COLOR_DARK_CYAN = new Color (this, 0,0x80,0x80); - COLOR_GRAY = new Color (this, 0xC0,0xC0,0xC0); - COLOR_DARK_GRAY = new Color (this, 0x80,0x80,0x80); - COLOR_RED = new Color (this, 0xFF,0,0); - COLOR_GREEN = new Color (this, 0,0xFF,0); - COLOR_YELLOW = new Color (this, 0xFF,0xFF,0); - COLOR_BLUE = new Color (this, 0,0,0xFF); - COLOR_MAGENTA = new Color (this, 0xFF,0,0xFF); - COLOR_CYAN = new Color (this, 0,0xFF,0xFF); - COLOR_WHITE = new Color (this, 0xFF,0xFF,0xFF); - - paragraphStyle = (NSMutableParagraphStyle)new NSMutableParagraphStyle().alloc().init(); - paragraphStyle.setAlignment(OS.NSLeftTextAlignment); - paragraphStyle.setLineBreakMode(OS.NSLineBreakByClipping); - NSArray tabs = new NSArray(new NSArray().alloc().init()); - paragraphStyle.setTabStops(tabs); - tabs.release(); - - /* Initialize the system font slot */ - boolean smallFonts = System.getProperty("org.eclipse.swt.internal.carbon.smallFonts") != null; - float /*double*/ systemFontSize = smallFonts ? NSFont.smallSystemFontSize() : NSFont.systemFontSize(); - Point dpi = this.dpi = getDPI(), screenDPI = getScreenDPI(); - NSFont font = NSFont.systemFontOfSize(systemFontSize * dpi.y / screenDPI.y); - font.retain(); - systemFont = Font.cocoa_new(this, font); -} - -/** - * Invokes platform specific functionality to allocate a new GC handle. - * <p> - * <b>IMPORTANT:</b> This method is <em>not</em> part of the public - * API for <code>Device</code>. It is marked public only so that it - * can be shared within the packages provided by SWT. It is not - * available on all platforms, and should never be called from - * application code. - * </p> - * - * @param data the platform specific GC data - * @return the platform specific GC handle - */ -public abstract int /*long*/ internal_new_GC (GCData data); - -/** - * Invokes platform specific functionality to dispose a GC handle. - * <p> - * <b>IMPORTANT:</b> This method is <em>not</em> part of the public - * API for <code>Device</code>. It is marked public only so that it - * can be shared within the packages provided by SWT. It is not - * available on all platforms, and should never be called from - * application code. - * </p> - * - * @param hDC the platform specific GC handle - * @param data the platform specific GC data - */ -public abstract void internal_dispose_GC (int /*long*/ handle, GCData data); - -/** - * Returns <code>true</code> if the device has been disposed, - * and <code>false</code> otherwise. - * <p> - * This method gets the dispose state for the device. - * When a device has been disposed, it is an error to - * invoke any other method using the device. - * - * @return <code>true</code> when the device is disposed and <code>false</code> otherwise - */ -public boolean isDisposed () { - synchronized (Device.class) { - return disposed; - } -} - -/** - * Loads the font specified by a file. The font will be - * present in the list of fonts available to the application. - * - * @param path the font file path - * @return whether the font was successfully loaded - * - * @exception SWTException <ul> - * <li>ERROR_NULL_ARGUMENT - if path is null</li> - * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> - * </ul> - * - * @see Font - * - * @since 3.3 - */ -public boolean loadFont (String path) { - checkDevice(); - if (path == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - boolean result = false; - NSString nsPath = NSString.stringWith(path); - int /*long*/ fsRepresentation = nsPath.fileSystemRepresentation(); - - if (fsRepresentation != 0) { - byte [] fsRef = new byte [80]; - boolean [] isDirectory = new boolean[1]; - if (OS.FSPathMakeRef (fsRepresentation, fsRef, isDirectory) == OS.noErr) { - result = OS.ATSFontActivateFromFileReference (fsRef, OS.kATSFontContextLocal, OS.kATSFontFormatUnspecified, 0, OS.kATSOptionFlagsDefault, null) == OS.noErr; - } - } - - return result; -} - -void new_Object (Object object) { - synchronized (trackingLock) { - for (int i=0; i<objects.length; i++) { - if (objects [i] == null) { - objects [i] = object; - errors [i] = new Error (); - return; - } - } - Object [] newObjects = new Object [objects.length + 128]; - System.arraycopy (objects, 0, newObjects, 0, objects.length); - newObjects [objects.length] = object; - objects = newObjects; - Error [] newErrors = new Error [errors.length + 128]; - System.arraycopy (errors, 0, newErrors, 0, errors.length); - newErrors [errors.length] = new Error (); - errors = newErrors; - } -} - -void printErrors () { - if (!DEBUG) return; - if (tracking) { - synchronized (trackingLock) { - if (objects == null || errors == null) return; - int objectCount = 0; - int colors = 0, cursors = 0, fonts = 0, gcs = 0, images = 0; - int paths = 0, patterns = 0, regions = 0, textLayouts = 0, transforms = 0; - for (int i=0; i<objects.length; i++) { - Object object = objects [i]; - if (object != null) { - objectCount++; - if (object instanceof Color) colors++; - if (object instanceof Cursor) cursors++; - if (object instanceof Font) fonts++; - if (object instanceof GC) gcs++; - if (object instanceof Image) images++; - if (object instanceof Path) paths++; - if (object instanceof Pattern) patterns++; - if (object instanceof Region) regions++; - if (object instanceof TextLayout) textLayouts++; - if (object instanceof Transform) transforms++; - } - } - if (objectCount != 0) { - String string = "Summary: "; - if (colors != 0) string += colors + " Color(s), "; - if (cursors != 0) string += cursors + " Cursor(s), "; - if (fonts != 0) string += fonts + " Font(s), "; - if (gcs != 0) string += gcs + " GC(s), "; - if (images != 0) string += images + " Image(s), "; - if (paths != 0) string += paths + " Path(s), "; - if (patterns != 0) string += patterns + " Pattern(s), "; - if (regions != 0) string += regions + " Region(s), "; - if (textLayouts != 0) string += textLayouts + " TextLayout(s), "; - if (transforms != 0) string += transforms + " Transforms(s), "; - if (string.length () != 0) { - string = string.substring (0, string.length () - 2); - System.out.println (string); - } - for (int i=0; i<errors.length; i++) { - if (errors [i] != null) errors [i].printStackTrace (System.out); - } - } - } - } -} - -/** - * Releases any internal resources back to the operating - * system and clears all fields except the device handle. - * <p> - * When a device is destroyed, resources that were acquired - * on behalf of the programmer need to be returned to the - * operating system. For example, if the device allocated a - * font to be used as the system font, this font would be - * freed in <code>release</code>. Also,to assist the garbage - * collector and minimize the amount of memory that is not - * reclaimed when the programmer keeps a reference to a - * disposed device, all fields except the handle are zero'd. - * The handle is needed by <code>destroy</code>. - * </p> - * This method is called before <code>destroy</code>. - * </p><p> - * If subclasses reimplement this method, they must - * call the <code>super</code> implementation. - * </p> - * - * @see #dispose - * @see #destroy - */ -protected void release () { - if (paragraphStyle != null) paragraphStyle.release(); - paragraphStyle = null; - - if (systemFont != null) systemFont.dispose(); - systemFont = null; - - if (COLOR_BLACK != null) COLOR_BLACK.dispose(); - if (COLOR_DARK_RED != null) COLOR_DARK_RED.dispose(); - if (COLOR_DARK_GREEN != null) COLOR_DARK_GREEN.dispose(); - if (COLOR_DARK_YELLOW != null) COLOR_DARK_YELLOW.dispose(); - if (COLOR_DARK_BLUE != null) COLOR_DARK_BLUE.dispose(); - if (COLOR_DARK_MAGENTA != null) COLOR_DARK_MAGENTA.dispose(); - if (COLOR_DARK_CYAN != null) COLOR_DARK_CYAN.dispose(); - if (COLOR_GRAY != null) COLOR_GRAY.dispose(); - if (COLOR_DARK_GRAY != null) COLOR_DARK_GRAY.dispose(); - if (COLOR_RED != null) COLOR_RED.dispose(); - if (COLOR_GREEN != null) COLOR_GREEN.dispose(); - if (COLOR_YELLOW != null) COLOR_YELLOW.dispose(); - if (COLOR_BLUE != null) COLOR_BLUE.dispose(); - if (COLOR_MAGENTA != null) COLOR_MAGENTA.dispose(); - if (COLOR_CYAN != null) COLOR_CYAN.dispose(); - if (COLOR_WHITE != null) COLOR_WHITE.dispose(); - COLOR_BLACK = COLOR_DARK_RED = COLOR_DARK_GREEN = COLOR_DARK_YELLOW = COLOR_DARK_BLUE = - COLOR_DARK_MAGENTA = COLOR_DARK_CYAN = COLOR_GRAY = COLOR_DARK_GRAY = COLOR_RED = - COLOR_GREEN = COLOR_YELLOW = COLOR_BLUE = COLOR_MAGENTA = COLOR_CYAN = COLOR_WHITE = null; -} - -/** - * If the underlying window system supports printing warning messages - * to the console, setting warnings to <code>false</code> prevents these - * messages from being printed. If the argument is <code>true</code> then - * message printing is not blocked. - * - * @param warnings <code>true</code>if warnings should be printed, and <code>false</code> otherwise - * - * @exception SWTException <ul> - * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public void setWarnings (boolean warnings) { - checkDevice (); - this.warnings = warnings; -} - -} |