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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/qt/org/eclipse/swt/graphics/Device.java')
| -rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/qt/org/eclipse/swt/graphics/Device.java | 920 |
1 files changed, 0 insertions, 920 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/qt/org/eclipse/swt/graphics/Device.java b/bundles/org.eclipse.swt/Eclipse SWT/qt/org/eclipse/swt/graphics/Device.java deleted file mode 100644 index 99a3dcb47a..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/qt/org/eclipse/swt/graphics/Device.java +++ /dev/null @@ -1,920 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2009 IBM Corporation and others. - * Portion Copyright (c) 2009-2010 compeople AG (http://www.compeople.de). - * 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 - * Compeople AG - QtJambi/Qt based implementation for Windows/Mac OS X/Linux - *******************************************************************************/ -package org.eclipse.swt.graphics; - -import java.util.ArrayList; -import java.util.List; - -import com.trolltech.qt.gui.QApplication; -import com.trolltech.qt.gui.QColor; -import com.trolltech.qt.gui.QFontDatabase; -import com.trolltech.qt.gui.QPaintDeviceInterface; -import com.trolltech.qt.gui.QPalette; -import com.trolltech.qt.gui.QPalette.ColorGroup; -import com.trolltech.qt.gui.QPalette.ColorRole; - -import org.eclipse.swt.SWT; -import org.eclipse.swt.SWTException; - -/** - * 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; - private boolean debug = DEBUG; - boolean tracking = DEBUG; - private Error[] errors; - private Object[] objects; - private Object trackingLock; - - /* System Font */ - Font systemFont; - private QColor COLOR_LIST_BACKGROUND; - private QColor COLOR_LIST_FOREGROUND; - private QColor COLOR_LIST_SELECTION; - private QColor COLOR_LIST_SELECTION_TEXT; - private QColor COLOR_TITLE_BACKGROUND; - private QColor COLOR_TITLE_BACKGROUND_GRADIENT; - private QColor COLOR_TITLE_FOREGROUND; - private QColor COLOR_TITLE_INACTIVE_BACKGROUND; - private QColor COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT; - private QColor COLOR_TITLE_INACTIVE_FOREGROUND; - private QColor COLOR_WIDGET_BACKGROUND; - private QColor COLOR_WIDGET_BORDER; - private QColor COLOR_WIDGET_DARK_SHADOW; - private QColor COLOR_WIDGET_FOREGROUND; - private QColor COLOR_WIDGET_HIGHLIGHT_SHADOW; - private QColor COLOR_WIDGET_LIGHT_SHADOW; - private QColor COLOR_WIDGET_NORMAL_SHADOW; - private QColor COLOR_INFO_FOREGROUND; - private QColor COLOR_INFO_BACKGROUND; - - private boolean disposed; - private QPaintDeviceInterface paintDevice; - - /* - * 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"); //$NON-NLS-1$ - } 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(); - } - } - - protected void setPaintDevice(QPaintDeviceInterface paintDevice) { - this.paintDevice = paintDevice; - } - - /** - * 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) { - } - - /** - * 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() { - } - - /** - * 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; - } - } - } - } - - /** - * 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(); - return new Rectangle(0, 0, paintDevice.width(), paintDevice.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() { - 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 paintDevice.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 new Point(paintDevice.physicalDpiX(), paintDevice.physicalDpiY()); - } - - /** - * 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(); - QFontDatabase qFontDatabase = null; - qFontDatabase = new QFontDatabase(); - String fontFamilies[] = qFontDatabase.families().toArray(new String[0]); - // for storing FontData arrays - List<FontData> fontData = new ArrayList<FontData>(); - - for (int i = 0; i < fontFamilies.length; i++) { - String family = null; - if (faceName == null) { - family = fontFamilies[i]; - } else { - if (faceName.equals(fontFamilies[i])) { - family = fontFamilies[i]; - } else { - continue; - } - } - getFontList(fontData, qFontDatabase, family, scalable); - if (faceName != null) { - break; - } - } - - qFontDatabase.dispose(); //TODO_DISPOSE (called many times) - qFontDatabase = null; - - if (fontData.size() > 0) { - FontData[] result = new FontData[fontData.size()]; - int size = fontData.size(); - for (int i = 0; i < size; ++i) { - result[i] = fontData.get(i); - } - return result; - } else { - return new FontData[0]; - } - } - - private void getFontList(List<FontData> fontData, QFontDatabase qFontDatabase, String family, boolean onlyScalable) { - String nativeStyles[] = qFontDatabase.styles(family).toArray(new String[0]); - int prevStyle = -1; - int i = 0; - // Go trough each native style of the font family, map them to SWT - // styles - // and create a new FontData for each newly found SWT style of the - // family. - // Still, it may be possible that there are no native styles for a - // family, - // in which case we add a single FontData with default SWT style: - // NORMAL. - // In addition we go trough all heights of non scalable font families, - // creating a new FontData for all heights of all native styles. - do { - String nativeStyle = nativeStyles.length > 0 ? nativeStyles[i] : null; - boolean isScalable = qFontDatabase.isScalable(family, nativeStyle); - int style = SWT.NORMAL; - if (qFontDatabase.bold(family, nativeStyle)) { - style |= SWT.BOLD; - } - if (qFontDatabase.italic(family, nativeStyle)) { - style |= SWT.ITALIC; - } - if (style != prevStyle) { - prevStyle = style; - int[] heights = null; - int j = 0; - if (onlyScalable && isScalable) { - heights = new int[1]; - heights[0] = FontData.FONT_DEF_HEIGHT; - } else if (!onlyScalable && !isScalable) { - List<Integer> pointSizes = null; - if (nativeStyle == null) { - pointSizes = qFontDatabase.pointSizes(family); - } else { - pointSizes = qFontDatabase.pointSizes(family, nativeStyle); - } - heights = new int[pointSizes.size()]; - for (int x = 0; x < pointSizes.size(); x++) { - heights[x] = pointSizes.get(x); - } - } - if (heights != null) { - do { - FontData fd = new FontData(family, heights[j], style); - fontData.add(fd); - j++; - } while (!onlyScalable && !isScalable && j < heights.length); - } - } - i++; - } while (i < nativeStyles.length); - } - - /** - * 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(); - int pixel = 0x00000000; - switch (id) { - case SWT.COLOR_WHITE: - return Color.qt_new(this, QColor.white); - case SWT.COLOR_BLACK: - return Color.qt_new(this, QColor.black); - case SWT.COLOR_RED: - return Color.qt_new(this, QColor.red); - case SWT.COLOR_DARK_RED: - return Color.qt_new(this, QColor.darkRed); - case SWT.COLOR_GREEN: - return Color.qt_new(this, QColor.green); - case SWT.COLOR_DARK_GREEN: - return Color.qt_new(this, QColor.darkGreen); - case SWT.COLOR_YELLOW: - return Color.qt_new(this, QColor.yellow); - case SWT.COLOR_DARK_YELLOW: - return Color.qt_new(this, QColor.darkYellow); - case SWT.COLOR_BLUE: - return Color.qt_new(this, QColor.blue); - case SWT.COLOR_DARK_BLUE: - return Color.qt_new(this, QColor.darkBlue); - case SWT.COLOR_MAGENTA: - return Color.qt_new(this, QColor.magenta); - case SWT.COLOR_DARK_MAGENTA: - return Color.qt_new(this, QColor.magenta); - case SWT.COLOR_CYAN: - return Color.qt_new(this, QColor.cyan); - case SWT.COLOR_DARK_CYAN: - return Color.qt_new(this, QColor.darkCyan); - case SWT.COLOR_GRAY: - return Color.qt_new(this, QColor.gray); - case SWT.COLOR_DARK_GRAY: - return Color.qt_new(this, QColor.darkGray); - case SWT.COLOR_LIST_BACKGROUND: - return Color.qt_new(this, COLOR_LIST_BACKGROUND); - case SWT.COLOR_LIST_FOREGROUND: - return Color.qt_new(this, COLOR_LIST_FOREGROUND); - case SWT.COLOR_LIST_SELECTION: - return Color.qt_new(this, COLOR_LIST_SELECTION); - case SWT.COLOR_LIST_SELECTION_TEXT: - return Color.qt_new(this, COLOR_LIST_SELECTION_TEXT); - case SWT.COLOR_TITLE_BACKGROUND: - return Color.qt_new(this, COLOR_TITLE_BACKGROUND); - case SWT.COLOR_TITLE_BACKGROUND_GRADIENT: - return Color.qt_new(this, COLOR_TITLE_BACKGROUND_GRADIENT); - case SWT.COLOR_TITLE_FOREGROUND: - return Color.qt_new(this, COLOR_TITLE_FOREGROUND); - case SWT.COLOR_TITLE_INACTIVE_BACKGROUND: - return Color.qt_new(this, COLOR_TITLE_INACTIVE_BACKGROUND); - case SWT.COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT: - return Color.qt_new(this, COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT); - case SWT.COLOR_TITLE_INACTIVE_FOREGROUND: - return Color.qt_new(this, COLOR_TITLE_INACTIVE_FOREGROUND); - case SWT.COLOR_WIDGET_BACKGROUND: - return Color.qt_new(this, COLOR_WIDGET_BACKGROUND); - case SWT.COLOR_WIDGET_BORDER: - return Color.qt_new(this, COLOR_WIDGET_BORDER); - case SWT.COLOR_WIDGET_DARK_SHADOW: - return Color.qt_new(this, COLOR_WIDGET_DARK_SHADOW); - case SWT.COLOR_WIDGET_FOREGROUND: - return Color.qt_new(this, COLOR_WIDGET_FOREGROUND); - case SWT.COLOR_WIDGET_HIGHLIGHT_SHADOW: - return Color.qt_new(this, COLOR_WIDGET_HIGHLIGHT_SHADOW); - case SWT.COLOR_WIDGET_LIGHT_SHADOW: - return Color.qt_new(this, COLOR_WIDGET_LIGHT_SHADOW); - case SWT.COLOR_WIDGET_NORMAL_SHADOW: - return Color.qt_new(this, COLOR_WIDGET_NORMAL_SHADOW); - case SWT.COLOR_INFO_FOREGROUND: - return Color.qt_new(this, COLOR_INFO_FOREGROUND); - case SWT.COLOR_INFO_BACKGROUND: - return Color.qt_new(this, COLOR_INFO_BACKGROUND); - } - return Color.qt_new(this, pixel); - } - - /** - * 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 Font.qt_new(this, QApplication.font()); - } - - /** - * 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 false; - } - - /** - * 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() { - /* Initialize the system font slot */ - systemFont = getSystemFont(); - QPalette palette = QApplication.style().standardPalette(); - try { - // Mapping colors from the QPalette to SWT colors. Not all - // colors are 100% right. Use snippet 235 and 235_1 to get - // all colors displayed. - - // Info - COLOR_INFO_FOREGROUND = palette.color(ColorGroup.Active, ColorRole.ToolTipText); - COLOR_INFO_BACKGROUND = palette.color(ColorGroup.Active, ColorRole.ToolTipBase); - - // List - COLOR_LIST_BACKGROUND = palette.color(ColorGroup.Active, ColorRole.Base); - COLOR_LIST_FOREGROUND = palette.color(ColorGroup.Active, ColorRole.Text); - COLOR_LIST_SELECTION = palette.color(ColorGroup.Active, ColorRole.Highlight); - COLOR_LIST_SELECTION_TEXT = palette.color(ColorGroup.Active, ColorRole.HighlightedText); - - // Title - COLOR_TITLE_BACKGROUND = new QColor(0, 84, 227); // palette.color(ColorGroup.Active, ColorRole.Highlight); - // TODO The required blue/grey does not exist in QPalette. Using grey as a substitute. - COLOR_TITLE_BACKGROUND_GRADIENT = new QColor(61, 149, 255);// palette.color(ColorGroup.Active, ColorRole.Light); - COLOR_TITLE_FOREGROUND = palette.color(ColorGroup.Active, ColorRole.HighlightedText); - - // Inactive highlight - COLOR_TITLE_INACTIVE_BACKGROUND = new QColor(122, 150, 223);// palette.color(ColorGroup.Inactive, ColorRole.Dark); - // TODO The required shade of grey does not exist in QPalette. Should be a bit lighter. - COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT = new QColor(157, 185, 235); //palette.color(ColorGroup.Inactive, ColorRole.Light); - // TODO The required shade of grey does not exist in QPalette. Should be a bit lighter. - // Even lighter still than background gradient. It's the same at the moment. - COLOR_TITLE_INACTIVE_FOREGROUND = new QColor(216, 228, 248); //palette.color(ColorGroup.Inactive, ColorRole.BrightText); - - // Window - //QApplication.style(). - COLOR_WIDGET_BACKGROUND = palette.color(ColorGroup.Active, ColorRole.Window);//new QColor(239, 235, 231); - COLOR_WIDGET_DARK_SHADOW = palette.color(ColorGroup.Active, ColorRole.Shadow); - COLOR_WIDGET_FOREGROUND = COLOR_WIDGET_BORDER = palette.color(ColorGroup.Active, ColorRole.WindowText); - COLOR_WIDGET_HIGHLIGHT_SHADOW = palette.color(ColorGroup.Active, ColorRole.Light); - - COLOR_WIDGET_LIGHT_SHADOW = new QColor(236, 233, 216); //palette.color(ColorGroup.Active, ColorRole.Button); - COLOR_WIDGET_NORMAL_SHADOW = new QColor(157, 155, 144); //palette.color(ColorGroup.Active, ColorRole.Mid); - - } finally { - palette.dispose(); - } - } - - /** - * 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 QPaintDeviceInterface 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(QPaintDeviceInterface paintDevice, 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); - } - int retCode = QFontDatabase.addApplicationFont(path); - return retCode != -1; // -1 == font load failed - } - - 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: "; //$NON-NLS-1$ - if (colors != 0) { - string += colors + " Color(s), ";//$NON-NLS-1$ - } - if (cursors != 0) { - string += cursors + " Cursor(s), ";//$NON-NLS-1$ - } - if (fonts != 0) { - string += fonts + " Font(s), ";//$NON-NLS-1$ - } - if (gcs != 0) { - string += gcs + " GC(s), ";//$NON-NLS-1$ - } - if (images != 0) { - string += images + " Image(s), ";//$NON-NLS-1$ - } - if (paths != 0) { - string += paths + " Path(s), ";//$NON-NLS-1$ - } - if (patterns != 0) { - string += patterns + " Pattern(s), ";//$NON-NLS-1$ - } - if (regions != 0) { - string += regions + " Region(s), ";//$NON-NLS-1$ - } - if (textLayouts != 0) { - string += textLayouts + " TextLayout(s), ";//$NON-NLS-1$ - } - if (transforms != 0) { - string += transforms + " Transforms(s), ";//$NON-NLS-1$ - } - if (string.length() != 0) { - string = string.substring(0, string.length() - 2); - System.err.println(string); - } - for (int i = 0; i < errors.length; i++) { - if (errors[i] != null) { - errors[i].printStackTrace(System.err); - } - } - } - } - } - } - - /** - * 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() { - paintDevice = 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(); - } - -} |