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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/photon/org/eclipse/swt/graphics/Device.java')
| -rwxr-xr-x | bundles/org.eclipse.swt/Eclipse SWT/photon/org/eclipse/swt/graphics/Device.java | 589 |
1 files changed, 0 insertions, 589 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/photon/org/eclipse/swt/graphics/Device.java b/bundles/org.eclipse.swt/Eclipse SWT/photon/org/eclipse/swt/graphics/Device.java deleted file mode 100755 index 70d7b87134..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/photon/org/eclipse/swt/graphics/Device.java +++ /dev/null @@ -1,589 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2005 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.*; -import org.eclipse.swt.internal.photon.*; - -/** - * 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. - */ -public abstract class Device implements Drawable { - - /* Debugging */ - public static boolean DEBUG; - boolean debug = DEBUG; - boolean tracking = DEBUG; - Error [] errors; - Object [] objects; - - boolean disposed; - - byte[] systemFont; - - static final Object CREATE_LOCK = new Object(); - - /* - * 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. - * - * This code will be removed in the future. - */ - protected static Device CurrentDevice; - protected static Runnable DeviceFinder; - static { - try { - Class.forName ("org.eclipse.swt.widgets.Display"); - } catch (Throwable e) {} - } - -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 (CREATE_LOCK) { - if (data != null) { - debug = data.debug; - tracking = data.tracking; - } - create (data); - init (); - if (tracking) { - errors = new Error [128]; - objects = new Object [128]; - } - - /* Initialize the system font slot */ - systemFont = getSystemFont ().handle; - } -} - -/** - * 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 () { - if (isDisposed()) return; - checkDevice (); - release (); - destroy (); - disposed = true; - if (tracking) { - objects = null; - errors = null; - } -} - -void dispose_Object (Object object) { - 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 (); - PhRect_t rect = new PhRect_t (); - OS.PhWindowQueryVisible (OS.Ph_QUERY_CONSOLE, 0, OS.PhInputGroup (0), rect); - int width = rect.lr_x - rect.ul_x + 1; - int height = rect.lr_y - rect.ul_y + 1; - return new Rectangle (rect.ul_x, rect.ul_y, width, height); -} - -/** - * 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 (); - PhRect_t rect = new PhRect_t (); - OS.PhWindowQueryVisible (OS.Ph_QUERY_WORKSPACE, 0, OS.PhInputGroup (0), rect); - int width = rect.lr_x - rect.ul_x + 1; - int height = rect.lr_y - rect.ul_y + 1; - return new Rectangle (rect.ul_x, rect.ul_y, width, height); -} - -/** - * 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 (); - PgDisplaySettings_t settings = new PgDisplaySettings_t (); - OS.PgGetVideoMode (settings); - PgVideoModeInfo_t mode_info = new PgVideoModeInfo_t (); - OS.PgGetVideoModeInfo ((short) settings.mode, mode_info); - return mode_info.bits_per_pixel; -} - -/** - * 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; - int count = 0, length = 0; - if (tracking) 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++; - } - } - return data; -} - -/** - * 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 (); - //NOT DONE - return new Point (96, 96); -} - -/** - * 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 (); - int flags = OS.PHFONT_FIXED | OS.PHFONT_PROP | OS.PHFONT_DONT_SHOW_LEGACY; - flags |= scalable ? OS.PHFONT_SCALABLE : OS.PHFONT_BITMAP; - int nfonts = OS.PfQueryFonts(OS.PHFONT_ALL_SYMBOLS, flags, 0, 0); - if (nfonts <= 0) return new FontData[0]; - int list_ptr = OS.malloc(nfonts * FontDetails.sizeof); - nfonts = OS.PfQueryFonts(OS.PHFONT_ALL_SYMBOLS, flags, list_ptr, nfonts); - int ptr = list_ptr; - int nFds = 0; - FontData[] fds = new FontData[faceName != null ? 4 : nfonts]; - FontDetails details = new FontDetails(); - for (int i = 0; i < nfonts; i++) { - OS.memmove(details, ptr, FontDetails.sizeof); - char[] chars = Converter.mbcsToWcs(null, details.desc); - int index = 0; - while (index < chars.length) { - if (chars[index] == 0) break; - index++; - } - String name = new String(chars, 0, index); - if (faceName == null || Compatibility.equalsIgnoreCase(faceName, name)) { - int size; - if (details.losize == 0 && details.hisize == 0) size = 9; // This value was taken from the PhAB editor - else size = details.losize; - flags = details.flags & ~(OS.PHFONT_INFO_PROP | OS.PHFONT_INFO_FIXED); - while (flags != 0) { - int style; - if ((flags & OS.PHFONT_INFO_PLAIN) != 0) { - style = SWT.NORMAL; - flags &= ~OS.PHFONT_INFO_PLAIN; - } else if ((flags & OS.PHFONT_INFO_BOLD) != 0) { - style = SWT.BOLD; - flags &= ~OS.PHFONT_INFO_BOLD; - } else if ((flags & OS.PHFONT_INFO_ITALIC) != 0) { - style = SWT.ITALIC; - flags &= ~OS.PHFONT_INFO_ITALIC; - } else if ((flags & OS.PHFONT_INFO_BLDITC) != 0) { - style = SWT.BOLD | SWT.ITALIC; - flags &= ~OS.PHFONT_INFO_BLDITC; - } else break; - if (nFds == fds.length) { - FontData[] newFds = new FontData[fds.length + nfonts]; - System.arraycopy(fds, 0, newFds, 0, nFds); - fds = newFds; - } - fds[nFds++] = new FontData(name, size, style); - } - } - ptr += FontDetails.sizeof; - } - OS.free(list_ptr); - - if (nFds == fds.length) return fds; - - FontData[] result = new FontData[nFds]; - System.arraycopy(fds, 0, result, 0, nFds); - return result; -} - -/** - * 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 color = 0x000000; - switch (id) { - case SWT.COLOR_BLACK: color = 0x000000; break; - case SWT.COLOR_DARK_RED: color = 0x800000; break; - case SWT.COLOR_DARK_GREEN: color = 0x008000; break; - case SWT.COLOR_DARK_YELLOW: color = 0x808000; break; - case SWT.COLOR_DARK_BLUE: color = 0x000080; break; - case SWT.COLOR_DARK_MAGENTA: color = 0x800080; break; - case SWT.COLOR_DARK_CYAN: color = 0x008080; break; - case SWT.COLOR_GRAY: color = 0x808080; break; - case SWT.COLOR_DARK_GRAY: color = 0x404040; break; - case SWT.COLOR_RED: color = 0xFF0000; break; - case SWT.COLOR_GREEN: color = 0x00FF00; break; - case SWT.COLOR_YELLOW: color = 0xFFFF00; break; - case SWT.COLOR_BLUE: color = 0x0000FF; break; - case SWT.COLOR_MAGENTA: color = 0xFF00FF; break; - case SWT.COLOR_CYAN: color = 0x00FFFF; break; - case SWT.COLOR_WHITE: color = 0xFFFFFF; break; - } - return Color.photon_new (this, color); -} - -/** - * 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.photon_new (this, 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 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 () { -} - -/** - * 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 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 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 () { - return disposed; -} - -void new_Object (Object object) { - 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 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 (); -} - -} |