/* * Copyright (c) 1996, 2010, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package sun.awt.windows; import sun.awt.*; import java.awt.*; import java.awt.peer.ComponentPeer; import java.awt.image.*; import sun.awt.image.ByteInterleavedRaster; import sun.security.action.GetPropertyAction; import java.security.PrivilegedAction; import java.security.AccessController; public class WEmbeddedFrame extends EmbeddedFrame { static { initIDs(); } private long handle; private int bandWidth = 0; private int bandHeight = 0; private int imgWid = 0; private int imgHgt = 0; private static int pScale = 0; private static final int MAX_BAND_SIZE = (1024*30); private static String printScale = AccessController.doPrivileged( new GetPropertyAction("sun.java2d.print.pluginscalefactor")); public WEmbeddedFrame() { this((long)0); } /** * @deprecated This constructor will be removed in 1.5 */ @Deprecated public WEmbeddedFrame(int handle) { this((long)handle); } public WEmbeddedFrame(long handle) { this.handle = handle; if (handle != 0) { addNotify(); show(); } } @SuppressWarnings("deprecation") public void addNotify() { if (getPeer() == null) { WToolkit toolkit = (WToolkit)Toolkit.getDefaultToolkit(); setPeer(toolkit.createEmbeddedFrame(this)); } super.addNotify(); } /* * Get the native handle */ public long getEmbedderHandle() { return handle; } /* * Print the embedded frame and its children using the specified HDC. */ void print(long hdc) { BufferedImage bandImage = null; int xscale = 1; int yscale = 1; /* Is this is either a printer DC or an enhanced meta file DC ? * Mozilla passes in a printer DC, IE passes plug-in a DC for an * enhanced meta file. Its possible we may be passed to a memory * DC. If we here create a larger image, draw in to it and have * that memory DC then lose the image resolution only to scale it * back up again when sending to a printer it will look really bad. * So, is this is either a printer DC or an enhanced meta file DC ? * Scale only if it is. Use a 4x scale factor, partly since for * an enhanced meta file we don't know anything about the * real resolution of the destination. * * For a printer DC we could probably derive the scale factor to use * by querying LOGPIXELSX/Y, and dividing that by the screen * resolution (typically 96 dpi or 120 dpi) but that would typically * make for even bigger output for marginal extra quality. * But for enhanced meta file we don't know anything about the * real resolution of the destination so */ if (isPrinterDC(hdc)) { xscale = yscale = getPrintScaleFactor(); } int frameHeight = getHeight(); if (bandImage == null) { bandWidth = getWidth(); if (bandWidth % 4 != 0) { bandWidth += (4 - (bandWidth % 4)); } if (bandWidth <= 0) { return; } bandHeight = Math.min(MAX_BAND_SIZE/bandWidth, frameHeight); imgWid = bandWidth * xscale; imgHgt = bandHeight * yscale; bandImage = new BufferedImage(imgWid, imgHgt, BufferedImage.TYPE_3BYTE_BGR); } Graphics clearGraphics = bandImage.getGraphics(); clearGraphics.setColor(Color.white); Graphics2D g2d = (Graphics2D)bandImage.getGraphics(); g2d.translate(0, imgHgt); g2d.scale(xscale, -yscale); ByteInterleavedRaster ras = (ByteInterleavedRaster)bandImage.getRaster(); byte[] data = ras.getDataStorage(); for (int bandTop = 0; bandTop < frameHeight; bandTop += bandHeight) { clearGraphics.fillRect(0, 0, bandWidth, bandHeight); printComponents(g2d); int imageOffset =0; int currBandHeight = bandHeight; int currImgHeight = imgHgt; if ((bandTop+bandHeight) > frameHeight) { // last band currBandHeight = frameHeight - bandTop; currImgHeight = currBandHeight*yscale; // multiply by 3 because the image is a 3 byte BGR imageOffset = imgWid*(imgHgt-currImgHeight)*3; } printBand(hdc, data, imageOffset, 0, 0, imgWid, currImgHeight, 0, bandTop, bandWidth, currBandHeight); g2d.translate(0, -bandHeight); } } protected static int getPrintScaleFactor() { // check if value is already cached if (pScale != 0) return pScale; if (printScale == null) { // if no system property is specified, // check for environment setting printScale = AccessController.doPrivileged( new PrivilegedAction() { public String run() { return System.getenv("JAVA2D_PLUGIN_PRINT_SCALE"); } } ); } int default_printDC_scale = 4; int scale = default_printDC_scale; if (printScale != null) { try { scale = Integer.parseInt(printScale); if (scale > 8 || scale < 1) { scale = default_printDC_scale; } } catch (NumberFormatException nfe) { } } pScale = scale; return pScale; } protected native boolean isPrinterDC(long hdc); protected native void printBand(long hdc, byte[] data, int offset, int sx, int sy, int swidth, int sheight, int dx, int dy, int dwidth, int dheight); /** * Initialize JNI field IDs */ private static native void initIDs(); /** * This method is called from the native code when this embedded * frame should be activated. It is expected to be overridden in * subclasses, for example, in plugin to activate the browser * window that contains this embedded frame. * * NOTE: This method may be called by privileged threads. * DO NOT INVOKE CLIENT CODE ON THIS THREAD! */ public void activateEmbeddingTopLevel() { } @SuppressWarnings("deprecation") public void synthesizeWindowActivation(final boolean activate) { if (!activate || EventQueue.isDispatchThread()) { ((WFramePeer)getPeer()).emulateActivation(activate); } else { // To avoid focus concurrence b/w IE and EmbeddedFrame // activation is postponed by means of posting it to EDT. EventQueue.invokeLater(new Runnable() { public void run() { ((WFramePeer)getPeer()).emulateActivation(true); } }); } } public void registerAccelerator(AWTKeyStroke stroke) {} public void unregisterAccelerator(AWTKeyStroke stroke) {} /** * Should be overridden in subclasses. Call to * super.notifyModalBlocked(blocker, blocked) must be present * when overriding. * It may occur that embedded frame is not put into its * container at the moment when it is blocked, for example, * when running an applet in IE. Then the call to this method * should be delayed until embedded frame is reparented. * * NOTE: This method may be called by privileged threads. * DO NOT INVOKE CLIENT CODE ON THIS THREAD! */ public void notifyModalBlocked(Dialog blocker, boolean blocked) { try { ComponentPeer thisPeer = (ComponentPeer)WToolkit.targetToPeer(this); ComponentPeer blockerPeer = (ComponentPeer)WToolkit.targetToPeer(blocker); notifyModalBlockedImpl((WEmbeddedFramePeer)thisPeer, (WWindowPeer)blockerPeer, blocked); } catch (Exception z) { z.printStackTrace(System.err); } } native void notifyModalBlockedImpl(WEmbeddedFramePeer peer, WWindowPeer blockerPeer, boolean blocked); }