/*
* $Id$
*
* Copyright (C) 2003-2015 JNode.org
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; If not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package org.jnode.awt.swingpeers;
import gnu.classpath.SystemProperties;
import java.awt.AWTEvent;
import java.awt.BufferCapabilities;
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.GraphicsConfiguration;
import java.awt.Image;
import java.awt.KeyboardFocusManager;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.event.ComponentEvent;
import java.awt.event.FocusEvent;
import java.awt.event.MouseEvent;
import java.awt.event.PaintEvent;
import java.awt.image.ColorModel;
import java.awt.image.ImageObserver;
import java.awt.image.ImageProducer;
import java.awt.image.VolatileImage;
import java.awt.peer.ComponentPeer;
import java.awt.peer.ContainerPeer;
import java.lang.reflect.Method;
import java.security.AccessController;
import java.security.PrivilegedAction;
import org.apache.log4j.Logger;
import org.jnode.awt.GraphicsFactory;
import org.jnode.awt.JNodeGenericPeer;
import org.jnode.awt.JNodeGraphics2D;
import org.jnode.awt.JNodeToolkit;
import sun.awt.CausedFocusEvent;
import sun.java2d.pipe.Region;
/**
* Base class for virtual component peers. Satisfies the requirements for AWT
* peers without actually displaying anything (hence, they are virtual) or by
* delegating to the parent component, under the assumption is that somewhere up
* in the hierarchy there is a parent who can produce a display.
*
* @author Levente S\u00e1ntha
*/
abstract class SwingComponentPeer<awtT extends Component, swingPeerT extends Component>
extends JNodeGenericPeer<SwingToolkit, awtT> implements ComponentPeer {
///////////////////////////////////////////////////////////////////////////////////////
// Private
protected final Logger log = Logger.getLogger(getClass());
protected final swingPeerT peerComponent;
/**
* Initialize this instance.
*
* @param toolkit
* @param target
*/
public SwingComponentPeer(SwingToolkit toolkit, awtT target, swingPeerT swingPeer) {
super(toolkit, target);
this.peerComponent = swingPeer;
if (!(swingPeer instanceof ISwingPeer)) {
throw new IllegalArgumentException("peer must implement ISwingPeer");
}
SwingToolkit.copyAwtProperties(target, swingPeer);
setBounds(target.getX(), target.getY(), target.getWidth(),
target.getHeight());
}
public boolean canDetermineObscurity() {
return false;
}
public final int checkImage(Image img, int width, int height, ImageObserver o) {
return toolkit.checkImage(img, width, height, o);
}
public final void coalescePaintEvent(PaintEvent e) {
//System.err.println( "coalescePaintEvent: " + e );
}
// Buffer
public final void createBuffers(int x, BufferCapabilities bufferCapabilities) {
}
public final void destroyBuffers() {
}
// Image
public final Image createImage(ImageProducer producer) {
return toolkit.createImage(producer);
}
public final Image createImage(int width, int height) {
return toolkit.createCompatibleImage(width, height);
}
public final VolatileImage createVolatileImage(int width, int height) {
return toolkit.createVolatileImage(width, height);
}
public final void disable() {
setEnabled(false);
}
public final void enable() {
setEnabled(true);
}
public final void flip(BufferCapabilities.FlipContents flipContents) {
}
public final Image getBackBuffer() {
return null;
}
// Color
public final ColorModel getColorModel() {
return toolkit.getColorModel();
}
// Fonts
public final FontMetrics getFontMetrics(Font font) {
return toolkit.getFontMetrics(font);
}
public Graphics getGraphics() {
/*
final Component parent = targetComponent.getParent();
if (parent != null) {
final int x = peerComponent.getX();
final int y = peerComponent.getY();
final int width = peerComponent.getWidth();
final int height = peerComponent.getHeight();
return parent.getGraphics().create(x, y, width, height);
} else {
throw new Error();
}
*/
//TODO review this !!!
final int x = peerComponent.getX();
final int y = peerComponent.getY();
final int width = peerComponent.getWidth();
final int height = peerComponent.getHeight();
Graphics g = SystemProperties.getProperty("gnu.javax.swing.noGraphics2D") == null ?
new JNodeGraphics2D(this) : GraphicsFactory.getInstance().createGraphics(this);
g.translate(x, y);
g.clipRect(0, 0, width, height);
/*
Throwable t = new Throwable();
StackTraceElement[] st = t.getStackTrace();
for(StackTraceElement ste : st){
if(ste.getClassName().contains("BoxWorld") && ste.getMethodName().equals("changeState")){
System.out.println("SwingComponent.getGraphics");
t.printStackTrace(System.out);
System.out.println("target compoennt: " + targetComponent);
System.out.println("peer compoennt: " + peerComponent);
}
}
*/
return g;
}
public final GraphicsConfiguration getGraphicsConfiguration() {
return toolkit.getGraphicsConfiguration();
}
/**
* @return The location on screen
* @see java.awt.peer.ComponentPeer#getLocationOnScreen()
*/
public Point getLocationOnScreen() {
Point p = targetComponent.getLocation();
Container parent = targetComponent.getParent();
while (parent != null) {
p.translate(parent.getX(), parent.getY());
parent = parent.getParent();
}
return p;
}
public final Dimension getMinimumSize() {
return peerComponent.getMinimumSize();
}
public final Dimension getPreferredSize() {
return peerComponent.getPreferredSize();
}
/**
* Response on paint events.
*/
private void processPaintEvent(PaintEvent event) {
if (!targetComponent.isVisible() || !peerComponent.isVisible())
return;
final Graphics g = peerComponent.getGraphics();
if (g != null) {
if (event.getID() == PaintEvent.PAINT) {
if (!(targetComponent instanceof java.awt.Window))
peerComponent.paint(g);
//todo isolates related
//if(targetComponent instanceof RootPaneContainer) {
// JRootPane jRootPane = ((RootPaneContainer) targetComponent).getRootPane();
//jRootPane.paintImmediately(0,0, jRootPane.getWidth(), jRootPane.getHeight());
//}
} else {
if (!(targetComponent instanceof java.awt.Window))
peerComponent.update(g);
//todo isolates related
//if(targetComponent instanceof RootPaneContainer)
// ((RootPaneContainer) targetComponent).getRootPane().update(g);
//if(targetComponent instanceof RootPaneContainer) {
// JRootPane jRootPane = ((RootPaneContainer) targetComponent).getRootPane();
// jRootPane.paintImmediately(0,0, jRootPane.getWidth(), jRootPane.getHeight());
//}
}
g.dispose();
}
}
/**
* Event handling.
*/
public final void handleEvent(AWTEvent event) {
final int id = event.getID();
switch (id) {
case PaintEvent.PAINT:
case PaintEvent.UPDATE: {
processPaintEvent((PaintEvent) event);
break;
}
default: {
if (event.getSource() == targetComponent) {
event.setSource(peerComponent);
}
if (event.getID() == MouseEvent.MOUSE_ENTERED) {
Object source = event.getSource();
if (source instanceof Component) {
Component comp = (Component) source;
Cursor cur = comp.getCursor();
if (cur != null) {
comp.setCursor(cur);
} else {
comp.setCursor(Cursor.getDefaultCursor());
}
}
}
((ISwingPeer<?>) peerComponent).processAWTEvent(event);
break;
}
}
}
/**
* Post a paint event for the AWT component on the event queue.
*/
protected final void postPaintEvent() {
if (targetComponent != null) {
final PaintEvent event = new PaintEvent(targetComponent, PaintEvent.PAINT, targetComponent.getBounds());
JNodeToolkit.postToTarget(event, targetComponent);
}
}
public boolean handlesWheelScrolling() {
return false;
}
public final void hide() {
setVisible(false);
}
// Focus
public final boolean isFocusable() {
return peerComponent.isFocusable();
}
// Obscurity
public boolean isObscured() {
return false;
}
public final Dimension minimumSize() {
return peerComponent.getMinimumSize();
}
public final void paint(Graphics g) {
if (!(targetComponent instanceof java.awt.Window)) {
peerComponent.paint(g);
targetComponent.paint(g);
} else
toolkit.postEvent(new PaintEvent(targetComponent, PaintEvent.PAINT, targetComponent.getBounds()));
}
// Deprecated
public final Dimension preferredSize() {
return peerComponent.getPreferredSize();
}
public final boolean prepareImage(Image img, int width, int height, ImageObserver o) {
return toolkit.prepareImage(img, width, height, o);
}
public final void print(Graphics g) {
peerComponent.print(g);
}
public final void repaint(long tm, int x, int y, int width, int height) {
//peerComponent.repaint(tm, x, y, width, height);
//postPaintEvent();
toolkit.postEvent(new PaintEvent(targetComponent, PaintEvent.UPDATE, targetComponent.getBounds()));
}
/**
* @see java.awt.peer.ComponentPeer#requestFocus()
*/
public final void requestFocus() {
peerComponent.requestFocus();
}
public final boolean requestFocus(final Component lightweightChild, final boolean temporary,
final boolean focusedWindowChangeAllowed, final long time) {
return AccessController.doPrivileged(new PrivilegedAction<Boolean>() {
public Boolean run() {
try {
Method processSynchronousLightweightTransferMethod =
KeyboardFocusManager.class.getDeclaredMethod("processSynchronousLightweightTransfer",
new Class[]{Component.class, Component.class, Boolean.TYPE, Boolean.TYPE, Long.TYPE});
processSynchronousLightweightTransferMethod.setAccessible(true);
Object[] params = new Object[]{targetComponent, peerComponent, Boolean.valueOf(temporary),
Boolean.valueOf(focusedWindowChangeAllowed), Long.valueOf(time)};
return ((Boolean) processSynchronousLightweightTransferMethod.invoke(null, params)).booleanValue();
} catch (Exception x) {
x.printStackTrace();
org.jnode.vm.Unsafe.debug("SwingComponentPeer.requestFocus() exception\n");
org.jnode.vm.Unsafe.debugStackTrace();
return false;
}
}
});
}
public boolean requestFocus(final Component lwChild, final boolean temporary,
final boolean focusedWindowChangeAllowed, final long time,
final CausedFocusEvent.Cause cause) {
return AccessController.doPrivileged(new PrivilegedAction<Boolean>() {
public Boolean run() {
try {
Component lightweightChild = lwChild;
Method processSynchronousLightweightTransferMethod =
KeyboardFocusManager.class.getDeclaredMethod("processSynchronousLightweightTransfer",
new Class[]{Component.class, Component.class, Boolean.TYPE, Boolean.TYPE, Long.TYPE});
processSynchronousLightweightTransferMethod.setAccessible(true);
Object[] params = new Object[]{targetComponent, peerComponent,
Boolean.valueOf(temporary), Boolean.valueOf(focusedWindowChangeAllowed), Long.valueOf(time)};
@SuppressWarnings("unused")
boolean ret =
((Boolean) processSynchronousLightweightTransferMethod.invoke(null, params)).booleanValue();
//if(ret)
// return true;
if (lightweightChild == null) {
lightweightChild = targetComponent;
}
Component currentOwner = KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();
if (currentOwner != null && currentOwner.getPeer() == null) {
currentOwner = null;
}
//if (focusLog.isLoggable(Level.FINER)) focusLog.finer("Simulating transfer from " + currentOwner +
// " to " + lightweightChild);
FocusEvent fg =
new CausedFocusEvent(lightweightChild, FocusEvent.FOCUS_GAINED, false, currentOwner, cause);
FocusEvent fl = null;
if (currentOwner != null) {
fl = new CausedFocusEvent(currentOwner, FocusEvent.FOCUS_LOST, false, lightweightChild, cause);
}
if (fl != null) {
postPaintEvent();
JNodeToolkit.postToTarget(fl, currentOwner);
}
JNodeToolkit.postToTarget(fg, (Component) fg.getSource());
return true;
} catch (Exception x) {
x.printStackTrace();
return false;
}
}
});
}
boolean isReshapeInProgress = false;
public final void reshape(int x, int y, int width, int height) {
if (isReshapeInProgress) {
return;
}
final int oldWidth = peerComponent.getWidth();
final int oldHeight = peerComponent.getHeight();
isReshapeInProgress = true;
peerComponent.setBounds(x, y, width, height);
isReshapeInProgress = false;
fireComponentEvent(oldWidth, width, oldHeight, height);
}
public final void setBackground(Color c) {
peerComponent.setBackground(c);
postPaintEvent();
}
// Bounds
public final void setBounds(int x, int y, int width, int height) {
reshape(x, y, width, height);
}
final void fireComponentEvent(final int oldWidth, int width, final int oldHeight, int height) {
if ((oldWidth != width) || (oldHeight != height)) {
fireComponentEvent(ComponentEvent.COMPONENT_RESIZED);
} else {
fireComponentEvent(ComponentEvent.COMPONENT_MOVED);
}
}
/**
* @see java.awt.peer.ComponentPeer#setCursor(java.awt.Cursor)
*/
public final void setCursor(Cursor cursor) {
peerComponent.setCursor(cursor);
}
public final void setEnabled(boolean b) {
peerComponent.setEnabled(b);
}
/**
* @see java.awt.peer.ComponentPeer#setEventMask(long)
*/
public final void setEventMask(long mask) {
}
public final void setFont(Font f) {
peerComponent.setFont(f);
postPaintEvent();
}
public final void setForeground(Color c) {
peerComponent.setForeground(c);
postPaintEvent();
}
public void setVisible(boolean b) {
peerComponent.setVisible(b);
}
public final void show() {
setVisible(true);
}
// Cursor
public final void updateCursorImmediately() {
Cursor cur = targetComponent.getCursor();
// org.jnode.vm.Unsafe.debug("JNodeToolkit.updateCursor()-2 " + cur + " for " + targetComponent + "\n");
// org.jnode.vm.Unsafe.debugStackTrace(100);
peerComponent.setCursor(cur);
toolkit.updateCursor(cur);
}
/**
* Posts a component event to the AWT event queue.
*
* @param what
*/
protected final void fireComponentEvent(int what) {
JNodeToolkit.postToTarget(new ComponentEvent(targetComponent, what), targetComponent);
}
public void layout() {
peerComponent.doLayout();
targetComponent.doLayout();
}
public Rectangle getBounds() {
return peerComponent.getBounds();
}
public void setBounds(int x, int y, int width, int height, int z) {
setBounds(x, y, width, height);
//peerComponent.setBounds(x, y, width, height);
}
public boolean isReparentSupported() {
//TODO implement it
return false;
}
public void reparent(ContainerPeer parent) {
//TODO implement it
}
public void applyShape(Region shape) {
//TODO
}
}