/*******************************************************************************
* Copyright (c) 2000, 2010 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.internal.carbon.*;
import org.eclipse.swt.internal.*;
import org.eclipse.swt.*;
/**
* 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;
int colorspace;
/*
* The following colors are listed in the Windows
* Programmer's Reference as the colors in the default
* palette.
*/
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;
/* Device DPI */
Point dpi;
/* Callbacks */
Callback drawPatternCallback, axialShadingCallback, releaseCallback;
int drawPatternProc, axialShadingProc, releaseProc;
/*
* 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 ();
}
create (data);
init ();
}
}
int axialShadingProc (int ref, int in, int out) {
Object object = OS.JNIGetObject (ref);
if (object instanceof Pattern) {
return ((Pattern) object).axialShadingProc (ref, in, out);
}
return 0;
}
/**
* 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) {
}
void createPatternCallbacks () {
if (drawPatternCallback == null) {
drawPatternCallback = new Callback(this, "drawPatternProc", 2);
drawPatternProc = drawPatternCallback.getAddress();
if (drawPatternProc == 0) SWT.error(SWT.ERROR_NO_MORE_CALLBACKS);
}
if (axialShadingCallback == null) {
axialShadingCallback = new Callback(this, "axialShadingProc", 3);
axialShadingProc = axialShadingCallback.getAddress();
if (axialShadingProc == 0) SWT.error(SWT.ERROR_NO_MORE_CALLBACKS);
}
}
/**
* 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) {
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 () {
}
int drawPatternProc (int ref, int context) {
Object object = OS.JNIGetObject (ref);
if (object instanceof Pattern) {
return ((Pattern) object).drawPatternProc (ref, context);
}
return 0;
}
/**
* 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 ();
int gdevice = OS.GetMainDevice();
int[] ptr = new int[1];
OS.memmove(ptr, gdevice, 4);
GDevice device = new GDevice();
OS.memmove(device, ptr[0], GDevice.sizeof);
return new Rectangle(device.left, device.top, device.right - device.left, device.bottom - device.top);
}
/**
* 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 ();
int gdevice = OS.GetMainDevice();
Rect rect = new Rect();
OS.GetAvailableWindowPositioningBounds(gdevice, rect);
return new Rectangle(rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top);
}
/**
* 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 ();
int gdevice = OS.GetMainDevice();
int[] ptr = new int[1];
OS.memmove(ptr, gdevice, 4);
GDevice device = new GDevice();
OS.memmove(device, ptr[0], GDevice.sizeof);
return OS.GetPixDepth(device.gdPMap);
}
/**
* 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 ();
int gdevice = OS.GetMainDevice();
int[] ptr = new int[1];
OS.memmove(ptr, gdevice, 4);
GDevice device = new GDevice();
OS.memmove(device, ptr[0], GDevice.sizeof);
OS.memmove(ptr, device.gdPMap, 4);
PixMap pixmap = new PixMap();
OS.memmove(pixmap, ptr[0], PixMap.sizeof);
return new Point (OS.Fix2Long (pixmap.hRes), OS.Fix2Long (pixmap.vRes));
}
/**
* 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;
int[] buffer = new int[1];
CFRange range = new CFRange ();
OS.ATSUGetFontIDs(null, 0, buffer);
FontData[] fds = new FontData[buffer[0]];
int status = OS.ATSFontIteratorCreate (OS.kATSFontContextLocal, 0, 0, OS.kATSOptionFlagsDefaultScope, buffer);
int iter = buffer[0];
while (status == OS.noErr) {
status = OS.ATSFontIteratorNext(iter, buffer);
if (status == OS.noErr) {
int font = buffer[0];
if (OS.ATSFontGetName(font, 0, buffer) == OS.noErr) {
range.length = OS.CFStringGetLength(buffer[0]);
char [] chars = new char[range.length];
OS.CFStringGetCharacters(buffer[0], range, chars);
OS.CFRelease(buffer[0]);
String atsName = new String(chars);
int platformCode = OS.kFontUnicodePlatform, encoding = OS.kCFStringEncodingUnicode;
if (OS.ATSUFindFontName(font, OS.kFontFamilyName, platformCode, OS.kFontNoScriptCode, OS.kFontNoLanguageCode, 0, null, buffer, null) != OS.noErr) {
platformCode = OS.kFontNoPlatformCode;
encoding = OS.kCFStringEncodingMacRoman;
if (OS.ATSUFindFontName(font, OS.kFontFamilyName, platformCode, OS.kFontNoScriptCode, OS.kFontNoLanguageCode, 0, null, buffer, null) != OS.noErr) {
continue;
}
}
byte[] bytes = new byte[buffer[0]];
OS.ATSUFindFontName(font, OS.kFontFamilyName, platformCode, OS.kFontNoScriptCode, OS.kFontNoLanguageCode, bytes.length, bytes, buffer, null);
int ptr = OS.CFStringCreateWithBytes(0, bytes, bytes.length, encoding, false);
if (ptr != 0) {
range.length = OS.CFStringGetLength(ptr);
if (range.length != 0) {
chars = new char[range.length];
OS.CFStringGetCharacters(ptr, range, chars);
String name = new String(chars);
if (!name.startsWith(".")) {
if (faceName == null || Compatibility.equalsIgnoreCase(faceName, name)) {
int s = SWT.NORMAL;
if (atsName.indexOf("Italic") != -1) s |= SWT.ITALIC;
if (atsName.indexOf("Bold") != -1) s |= SWT.BOLD;
FontData data = new FontData(name, 0, s);
data.atsName = atsName;
if (count == fds.length) {
FontData[] newFDs = new FontData[count + 4];
System.arraycopy(fds, 0, newFDs, 0, count);
fds = newFDs;
}
fds[count++] = data;
}
}
}
OS.CFRelease(ptr);
}
}
}
}
if (iter != 0) {
buffer [0] = iter;
OS.ATSFontIteratorRelease (buffer);
}
if (count == fds.length) return fds;
FontData[] result = new FontData[count];
System.arraycopy(fds, 0, result, 0, count);
return result;
}
Point getScreenDPI() {
int gdevice = OS.GetMainDevice();
int[] ptr = new int[1];
OS.memmove(ptr, gdevice, 4);
GDevice device = new GDevice();
OS.memmove(device, ptr[0], GDevice.sizeof);
OS.memmove(ptr, device.gdPMap, 4);
PixMap pixmap = new PixMap();
OS.memmove(pixmap, ptr[0], PixMap.sizeof);
return new Point (OS.Fix2Long (pixmap.hRes), OS.Fix2Long (pixmap.vRes));
}
/**
* 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 () {
colorspace = OS.CGColorSpaceCreateDeviceRGB();
if (colorspace == 0) SWT.error(SWT.ERROR_NO_HANDLES);
releaseCallback = new Callback (this, "releaseProc", 3);
releaseProc = releaseCallback.getAddress ();
if (releaseProc == 0) SWT.error (SWT.ERROR_NO_MORE_CALLBACKS);
/* 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);
/* Initialize the system font slot */
//TEMPORARY CODE
boolean smallFonts = System.getProperty("org.eclipse.swt.internal.carbon.smallFonts") != null;
byte [] family = new byte [256];
short [] size = new short [1];
byte [] style = new byte [1];
int themeFont = smallFonts ? OS.kThemeSmallSystemFont : OS.kThemeSystemFont;
OS.GetThemeFont ((short) themeFont, (short) OS.smSystemScript, family, size, style);
short id = OS.FMGetFontFamilyFromName (family);
int [] font = new int [1];
OS.FMGetFontFromFontFamilyInstance (id, style [0], font, null);
Point dpi = this.dpi = getDPI(), screenDPI = getScreenDPI();
systemFont = Font.carbon_new (this, OS.FMGetATSFontRefFromFont (font [0]), style [0], size [0] * dpi.y / screenDPI.y);
}
/**
* 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
*
* @noreference This method is not intended to be referenced by clients.
*/
public abstract int 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
*
* @noreference This method is not intended to be referenced by clients.
*/
public abstract void internal_dispose_GC (int 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;
char [] chars = new char [path.length ()];
path.getChars (0, chars.length, chars, 0);
int str = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, chars, chars.length);
if (str != 0) {
int url = OS.CFURLCreateWithFileSystemPath (OS.kCFAllocatorDefault, str, OS.kCFURLPOSIXPathStyle, false);
if (url != 0) {
byte [] fsRef = new byte [80];
if (OS.CFURLGetFSRef (url, fsRef)) {
byte [] fsSpec = new byte [70];
if (OS.FSGetCatalogInfo (fsRef, 0, null, null, fsSpec, null) == OS.noErr) {
int [] container = new int [1];
result = OS.ATSFontActivateFromFileSpecification (fsSpec, OS.kATSFontContextLocal, OS.kATSFontFormatUnspecified, 0, OS.kATSOptionFlagsDefault, container) == OS.noErr;
}
}
OS.CFRelease (url);
}
OS.CFRelease (str);
}
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;
}
}
/**
* 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 (releaseCallback != null) releaseCallback.dispose ();
if (drawPatternCallback != null) drawPatternCallback.dispose();
if (axialShadingCallback != null) axialShadingCallback.dispose();
releaseCallback = axialShadingCallback = drawPatternCallback = null;
releaseProc = axialShadingProc = drawPatternProc = 0;
OS.CGColorSpaceRelease(colorspace);
colorspace = 0;
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;
}
int releaseProc (int info, int data, int size) {
OS.DisposePtr(data);
return 0;
}
/**
* 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;
}
}