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/*
* Copyright 1996-2007 Sun Microsystems, Inc. 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. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package sun.awt.windows;
import sun.awt.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.peer.ComponentPeer;
import java.util.*;
import java.awt.color.*;
import java.awt.image.*;
import sun.awt.image.ByteInterleavedRaster;
import java.lang.reflect.*;
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 final int MAX_BAND_SIZE = (1024*30);
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();
}
}
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 = 4;
yscale = 4;
}
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 = (int)(bandWidth * xscale);
imgHgt = (int)(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 = (int)(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 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() {
}
public void synthesizeWindowActivation(boolean doActivate) {
((WEmbeddedFramePeer)getPeer()).synthesizeWmActivate(doActivate);
}
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 {
notifyModalBlockedImpl((WEmbeddedFramePeer)ComponentAccessor.getPeer(this),
(WWindowPeer)ComponentAccessor.getPeer(blocker),
blocked);
} catch (Exception z) {
z.printStackTrace(System.err);
}
}
native void notifyModalBlockedImpl(WEmbeddedFramePeer peer, WWindowPeer blockerPeer, boolean blocked);
}
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