diff options
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/Device.java')
| -rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/Device.java | 556 |
1 files changed, 0 insertions, 556 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/Device.java b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/Device.java deleted file mode 100644 index 5140074d6d..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/Device.java +++ /dev/null @@ -1,556 +0,0 @@ -package org.eclipse.swt.graphics; - -/* - * (c) Copyright IBM Corp. 2000, 2001. - * All Rights Reserved - */ - -import org.eclipse.swt.*; -import org.eclipse.swt.internal.*; -import org.eclipse.swt.internal.gtk.*; - -public abstract class Device implements Drawable { - - /* Debugging */ - public static boolean DEBUG; - boolean debug = DEBUG; - boolean tracking = DEBUG; - Error [] errors; - Object [] objects; - - /* Colormap and reference count */ - GdkColor [] gdkColors; - int [] colorRefCount; - - /* Disposed flag */ - boolean disposed; - - /* Warning and Error Handlers */ - int logProc; - Callback logCallback; - String [] log_domains = {"Gtk", /*"Gdk", "GLib", "GdkPixbuf"*/}; - int [] handler_ids = new int [log_domains.length]; - boolean warnings = true; - - /* - * 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; - - /* - * 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) {} - } - -/* -* TEMPORARY CODE. -*/ -static 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> - * - * @param data the DeviceData which describes the receiver - * - * @see #create - * @see #init - * @see DeviceData - */ -public Device(DeviceData data) { - if (data != null) { - debug = data.debug; - tracking = data.tracking; - } - create (data); - init (); - if (tracking) { - errors = new Error [128]; - objects = new Object [128]; - } -} - -protected void checkDevice () { - if (disposed) SWT.error(SWT.ERROR_DEVICE_DISPOSED); -} - -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 () { - 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; - } - } -} - -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 (); - SWT.error (SWT.ERROR_NOT_IMPLEMENTED); - return new Rectangle(0, 0, 0, 0); -} - -/** - * 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 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 (); - SWT.error (SWT.ERROR_NOT_IMPLEMENTED); - return 0; -} - -/** - * 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 (); - SWT.error (SWT.ERROR_NOT_IMPLEMENTED); - return new Point (72, 72); -} - -/** - * Returns <code>FontData</code> objects which describe - * the fonts which 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 true if scalable fonts should be 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 (); - String xlfd; - if (faceName == null) { - xlfd = "-*"; - } else { - int dashIndex = faceName.indexOf('-'); - if (dashIndex < 0) { - xlfd = "-*-" + faceName + "-*"; - } else { - xlfd = "-" + faceName + "-*"; - } - } - /* Use the character encoding for the default locale */ - byte [] buffer1 = Converter.wcsToMbcs (null, xlfd, true); - int [] ret = new int [1]; - int listPtr = OS.XListFonts (buffer1, 65535, ret); - int ptr = listPtr; - int [] intBuf = new int [1]; - FontData [] fd = new FontData [ret [0]]; - int fdIndex = 0; - for (int i = 0; i < ret [0]; i++) { - OS.memmove (intBuf, ptr, 4); - int charPtr = intBuf [0]; - int length = OS.strlen (charPtr); - byte [] buffer2 = new byte [length]; - OS.memmove (buffer2, charPtr, length); - /* Use the character encoding for the default locale */ - char [] chars = Converter.mbcsToWcs (null, buffer2); - FontData data = FontData.gtk_new (new String (chars)); - boolean isScalable = data.averageWidth == 0 && data.pixels == 0 && data.points == 0; - if (isScalable == scalable) { - fd [fdIndex++] = data; - } - ptr += 4; - } - // FIXME, leaking font list -// OS.XFreeFontNames (listPtr); - if (fdIndex == ret [0]) return fd; - FontData [] result = new FontData [fdIndex]; - System.arraycopy (fd, 0, result, 0, fdIndex); - 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 free'd 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 free'd 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 null; -} - -/** - * 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 this.warnings; -} - -protected void init () { - - /* Create GTK warnings and error callbacks */ - logCallback = new Callback (this, "logProc", 4); - logProc = logCallback.getAddress (); - if (logProc == 0) SWT.error (SWT.ERROR_NO_MORE_CALLBACKS); - - /* Set GTK warning and error handlers */ - if (debug) { - int flags = OS.G_LOG_LEVEL_MASK | OS.G_LOG_FLAG_FATAL | OS.G_LOG_FLAG_RECURSION; - for (int i=0; i<log_domains.length; i++) { - byte [] log_domain = Converter.wcsToMbcs (null, log_domains [i], true); - handler_ids [i] = OS.g_log_set_handler (log_domain, flags, logProc, 0); - } - } - - /* 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); -} - -/** - * 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 - * - * @private - */ -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 handle the platform specific GC handle - * @param data the platform specific GC data - * - * @private - */ -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; -} - -int logProc (int log_domain, int log_level, int message, int user_data) { - if (DEBUG || (debug && warnings)) { - new Error ().printStackTrace (); - OS.g_log_default_handler (log_domain, log_level, message, 0); - } - return 0; -} - -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; -} - -protected void release () { - if (gdkColors != null) { - int colormap = OS.gdk_colormap_get_system(); - int [] pixel = new int [1]; - for (int i = 0; i < gdkColors.length; i++) { - GdkColor color = gdkColors [i]; - if (color != null) { - while (colorRefCount [i] > 0) { - OS.gdk_color_free(color); - --colorRefCount [i]; - } - } - } - } - gdkColors = null; - colorRefCount = null; - 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; - - /* Free the GTK error and warning handler */ - int flags = OS.G_LOG_LEVEL_MASK | OS.G_LOG_FLAG_FATAL | OS.G_LOG_FLAG_RECURSION; - for (int i=0; i<handler_ids.length; i++) { - if (handler_ids [i] != 0) { - byte [] log_domain = Converter.wcsToMbcs (null, log_domains [i], true); - OS.g_log_remove_handler (log_domain, handler_ids [i]); - } - } - logCallback.dispose (); logCallback = null; - handler_ids = null; log_domains = null; - logProc = 0; -} - -/** - * If the underlying window system supports printing warning messages - * to the console, setting warnings to <code>true</code> prevents these - * messages from being printed. If the argument is <code>false</code> - * message printing is not blocked. - * - * @param warnings <code>true</code>if warnings should be handled, 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; - if (debug) return; - for (int i=0; i<handler_ids.length; i++) { - if (handler_ids [i] != 0) { - byte [] log_domain = Converter.wcsToMbcs (null, log_domains [i], true); - OS.g_log_remove_handler (log_domain, handler_ids [i]); - } - } - if (warnings) { - int flags = OS.G_LOG_LEVEL_MASK | OS.G_LOG_FLAG_FATAL | OS.G_LOG_FLAG_RECURSION; - for (int i=0; i<log_domains.length; i++) { - byte [] log_domain = Converter.wcsToMbcs (null, log_domains [i], true); - handler_ids [i] = OS.g_log_set_handler (log_domain, flags, logProc, 0); - } - } -} - -} |