author | anthony |
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/* |
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* Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package sun.swing; |
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import java.awt.BorderLayout; |
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import java.awt.Color; |
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import java.awt.Component; |
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import java.awt.Container; |
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import java.awt.Dimension; |
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import java.awt.EventQueue; |
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import java.awt.Graphics; |
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import java.awt.Graphics2D; |
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import java.awt.MouseInfo; |
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import java.awt.Point; |
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import java.awt.Rectangle; |
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import java.awt.Window; |
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import java.awt.dnd.DragGestureEvent; |
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import java.awt.dnd.DragGestureListener; |
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import java.awt.dnd.DragGestureRecognizer; |
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import java.awt.dnd.DragSource; |
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import java.awt.dnd.DropTarget; |
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import java.awt.dnd.InvalidDnDOperationException; |
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import java.awt.dnd.peer.DragSourceContextPeer; |
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import java.awt.event.ContainerEvent; |
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import java.awt.event.ContainerListener; |
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import java.awt.image.BufferedImage; |
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import java.awt.image.DataBufferInt; |
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import java.beans.PropertyChangeEvent; |
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import java.beans.PropertyChangeListener; |
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import java.security.AccessController; |
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import javax.swing.JComponent; |
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import javax.swing.JLayeredPane; |
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import javax.swing.JPanel; |
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import javax.swing.JRootPane; |
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import javax.swing.LayoutFocusTraversalPolicy; |
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import javax.swing.RepaintManager; |
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import javax.swing.RootPaneContainer; |
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import javax.swing.SwingUtilities; |
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import sun.awt.DisplayChangedListener; |
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import sun.awt.LightweightFrame; |
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import sun.security.action.GetPropertyAction; |
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import sun.swing.SwingUtilities2.RepaintListener; |
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/** |
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* The frame serves as a lightweight container which paints its content |
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* to an offscreen image and provides access to the image's data via the |
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* {@link LightweightContent} interface. Note, that it may not be shown |
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* as a standalone toplevel frame. Its purpose is to provide functionality |
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* for lightweight embedding. |
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* |
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* @author Artem Ananiev |
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* @author Anton Tarasov |
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*/ |
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@SuppressWarnings("serial") // JDK-implementation class |
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public final class JLightweightFrame extends LightweightFrame implements RootPaneContainer { |
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private final JRootPane rootPane = new JRootPane(); |
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private LightweightContent content; |
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private Component component; |
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private JPanel contentPane; |
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private BufferedImage bbImage; |
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private volatile int scaleFactor = 1; |
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/** |
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* {@code copyBufferEnabled}, true by default, defines the following strategy. |
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* A duplicating (copy) buffer is created for the original pixel buffer. |
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* The copy buffer is synchronized with the original buffer every time the |
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* latter changes. {@code JLightweightFrame} passes the copy buffer array |
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* to the {@link LightweightContent#imageBufferReset} method. The code spot |
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* which synchronizes two buffers becomes the only critical section guarded |
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* by the lock (managed with the {@link LightweightContent#paintLock()}, |
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* {@link LightweightContent#paintUnlock()} methods). |
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*/ |
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private static boolean copyBufferEnabled; |
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private int[] copyBuffer; |
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private PropertyChangeListener layoutSizeListener; |
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private RepaintListener repaintListener; |
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static { |
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SwingAccessor.setJLightweightFrameAccessor(new SwingAccessor.JLightweightFrameAccessor() { |
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@Override |
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public void updateCursor(JLightweightFrame frame) { |
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frame.updateClientCursor(); |
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} |
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}); |
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copyBufferEnabled = "true".equals(AccessController. |
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doPrivileged(new GetPropertyAction("swing.jlf.copyBufferEnabled", "true"))); |
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} |
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/** |
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* Constructs a new, initially invisible {@code JLightweightFrame} |
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* instance. |
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*/ |
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public JLightweightFrame() { |
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super(); |
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copyBufferEnabled = "true".equals(AccessController. |
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doPrivileged(new GetPropertyAction("swing.jlf.copyBufferEnabled", "true"))); |
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add(rootPane, BorderLayout.CENTER); |
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setFocusTraversalPolicy(new LayoutFocusTraversalPolicy()); |
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if (getGraphicsConfiguration().isTranslucencyCapable()) { |
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setBackground(new Color(0, 0, 0, 0)); |
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} |
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layoutSizeListener = new PropertyChangeListener() { |
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@Override |
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public void propertyChange(PropertyChangeEvent e) { |
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Dimension d = (Dimension)e.getNewValue(); |
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if ("preferredSize".equals(e.getPropertyName())) { |
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content.preferredSizeChanged(d.width, d.height); |
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} else if ("maximumSize".equals(e.getPropertyName())) { |
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content.maximumSizeChanged(d.width, d.height); |
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} else if ("minimumSize".equals(e.getPropertyName())) { |
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content.minimumSizeChanged(d.width, d.height); |
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} |
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} |
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}; |
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repaintListener = (JComponent c, int x, int y, int w, int h) -> { |
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Window jlf = SwingUtilities.getWindowAncestor(c); |
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if (jlf != JLightweightFrame.this) { |
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return; |
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} |
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Point p = SwingUtilities.convertPoint(c, x, y, jlf); |
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Rectangle r = new Rectangle(p.x, p.y, w, h).intersection( |
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new Rectangle(0, 0, bbImage.getWidth() / scaleFactor, |
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bbImage.getHeight() / scaleFactor)); |
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if (!r.isEmpty()) { |
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notifyImageUpdated(r.x, r.y, r.width, r.height); |
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} |
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}; |
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SwingAccessor.getRepaintManagerAccessor().addRepaintListener( |
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RepaintManager.currentManager(this), repaintListener); |
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} |
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@Override |
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public void dispose() { |
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SwingAccessor.getRepaintManagerAccessor().removeRepaintListener( |
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RepaintManager.currentManager(this), repaintListener); |
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super.dispose(); |
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} |
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/** |
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* Sets the {@link LightweightContent} instance for this frame. |
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* The {@code JComponent} object returned by the |
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* {@link LightweightContent#getComponent()} method is immediately |
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* added to the frame's content pane. |
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* |
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* @param content the {@link LightweightContent} instance |
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*/ |
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public void setContent(final LightweightContent content) { |
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if (content == null) { |
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System.err.println("JLightweightFrame.setContent: content may not be null!"); |
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return; |
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} |
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this.content = content; |
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this.component = content.getComponent(); |
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Dimension d = this.component.getPreferredSize(); |
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content.preferredSizeChanged(d.width, d.height); |
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d = this.component.getMaximumSize(); |
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content.maximumSizeChanged(d.width, d.height); |
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199 |
|
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d = this.component.getMinimumSize(); |
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content.minimumSizeChanged(d.width, d.height); |
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202 |
|
15983 | 203 |
initInterior(); |
204 |
} |
|
205 |
||
206 |
@Override |
|
207 |
public Graphics getGraphics() { |
|
208 |
if (bbImage == null) return null; |
|
209 |
||
210 |
Graphics2D g = bbImage.createGraphics(); |
|
211 |
g.setBackground(getBackground()); |
|
212 |
g.setColor(getForeground()); |
|
213 |
g.setFont(getFont()); |
|
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g.scale(scaleFactor, scaleFactor); |
15983 | 215 |
return g; |
216 |
} |
|
217 |
||
218 |
/** |
|
219 |
* {@inheritDoc} |
|
220 |
* |
|
221 |
* @see LightweightContent#focusGrabbed() |
|
222 |
*/ |
|
223 |
@Override |
|
224 |
public void grabFocus() { |
|
225 |
if (content != null) content.focusGrabbed(); |
|
226 |
} |
|
227 |
||
228 |
/** |
|
229 |
* {@inheritDoc} |
|
230 |
* |
|
231 |
* @see LightweightContent#focusUngrabbed() |
|
232 |
*/ |
|
233 |
@Override |
|
234 |
public void ungrabFocus() { |
|
235 |
if (content != null) content.focusUngrabbed(); |
|
236 |
} |
|
237 |
||
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238 |
@Override |
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239 |
public int getScaleFactor() { |
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240 |
return scaleFactor; |
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241 |
} |
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242 |
|
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243 |
@Override |
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244 |
public void notifyDisplayChanged(final int scaleFactor) { |
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245 |
if (scaleFactor != this.scaleFactor) { |
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if (!copyBufferEnabled) content.paintLock(); |
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try { |
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248 |
if (bbImage != null) { |
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|
249 |
resizeBuffer(getWidth(), getHeight(), scaleFactor); |
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250 |
} |
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251 |
} finally { |
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252 |
if (!copyBufferEnabled) content.paintUnlock(); |
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253 |
} |
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254 |
this.scaleFactor = scaleFactor; |
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|
255 |
} |
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256 |
if (getPeer() instanceof DisplayChangedListener) { |
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257 |
((DisplayChangedListener)getPeer()).displayChanged(); |
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258 |
} |
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259 |
repaint(); |
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|
260 |
} |
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261 |
|
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262 |
@Override |
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263 |
public void addNotify() { |
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|
264 |
super.addNotify(); |
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|
265 |
if (getPeer() instanceof DisplayChangedListener) { |
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|
266 |
((DisplayChangedListener)getPeer()).displayChanged(); |
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|
267 |
} |
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|
268 |
} |
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|
269 |
|
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|
270 |
private void syncCopyBuffer(boolean reset, int x, int y, int w, int h, int scale) { |
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271 |
content.paintLock(); |
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|
272 |
try { |
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|
273 |
int[] srcBuffer = ((DataBufferInt)bbImage.getRaster().getDataBuffer()).getData(); |
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|
274 |
if (reset) { |
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|
275 |
copyBuffer = new int[srcBuffer.length]; |
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|
276 |
} |
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|
277 |
int linestride = bbImage.getWidth(); |
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|
278 |
|
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|
279 |
x *= scale; |
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|
280 |
y *= scale; |
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|
281 |
w *= scale; |
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|
282 |
h *= scale; |
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|
283 |
|
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|
284 |
for (int i=0; i<h; i++) { |
62b97a10da72
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|
285 |
int from = (y + i) * linestride + x; |
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changeset
|
286 |
System.arraycopy(srcBuffer, from, copyBuffer, from, w); |
62b97a10da72
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changeset
|
287 |
} |
62b97a10da72
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parents:
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changeset
|
288 |
} finally { |
62b97a10da72
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changeset
|
289 |
content.paintUnlock(); |
62b97a10da72
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diff
changeset
|
290 |
} |
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changeset
|
291 |
} |
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diff
changeset
|
292 |
|
23280
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diff
changeset
|
293 |
private void notifyImageUpdated(int x, int y, int width, int height) { |
df31f522531f
8033233: [JLightweightFrame] support default JViewport BLIT_SCROLL_MODE
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parents:
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diff
changeset
|
294 |
if (copyBufferEnabled) { |
25195
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changeset
|
295 |
syncCopyBuffer(false, x, y, width, height, scaleFactor); |
23280
df31f522531f
8033233: [JLightweightFrame] support default JViewport BLIT_SCROLL_MODE
ant
parents:
20136
diff
changeset
|
296 |
} |
df31f522531f
8033233: [JLightweightFrame] support default JViewport BLIT_SCROLL_MODE
ant
parents:
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diff
changeset
|
297 |
content.imageUpdated(x, y, width, height); |
df31f522531f
8033233: [JLightweightFrame] support default JViewport BLIT_SCROLL_MODE
ant
parents:
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diff
changeset
|
298 |
} |
df31f522531f
8033233: [JLightweightFrame] support default JViewport BLIT_SCROLL_MODE
ant
parents:
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diff
changeset
|
299 |
|
22618 | 300 |
@SuppressWarnings("serial") // anonymous class inside |
15983 | 301 |
private void initInterior() { |
302 |
contentPane = new JPanel() { |
|
303 |
@Override |
|
304 |
public void paint(Graphics g) { |
|
17415
62b97a10da72
8014227: JLightweightFrame needs another synchronization policy
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diff
changeset
|
305 |
if (!copyBufferEnabled) { |
62b97a10da72
8014227: JLightweightFrame needs another synchronization policy
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parents:
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diff
changeset
|
306 |
content.paintLock(); |
62b97a10da72
8014227: JLightweightFrame needs another synchronization policy
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parents:
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diff
changeset
|
307 |
} |
15983 | 308 |
try { |
309 |
super.paint(g); |
|
310 |
||
311 |
final Rectangle clip = g.getClipBounds() != null ? |
|
17415
62b97a10da72
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diff
changeset
|
312 |
g.getClipBounds() : |
62b97a10da72
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ant
parents:
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diff
changeset
|
313 |
new Rectangle(0, 0, contentPane.getWidth(), contentPane.getHeight()); |
15983 | 314 |
|
315 |
clip.x = Math.max(0, clip.x); |
|
316 |
clip.y = Math.max(0, clip.y); |
|
317 |
clip.width = Math.min(contentPane.getWidth(), clip.width); |
|
318 |
clip.height = Math.min(contentPane.getHeight(), clip.height); |
|
319 |
||
320 |
EventQueue.invokeLater(new Runnable() { |
|
321 |
@Override |
|
322 |
public void run() { |
|
25195
9de77f5b0df2
8029455: [JLightweightFrame] support scaled painting
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parents:
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diff
changeset
|
323 |
Rectangle c = contentPane.getBounds().intersection(clip); |
9de77f5b0df2
8029455: [JLightweightFrame] support scaled painting
serb
parents:
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diff
changeset
|
324 |
notifyImageUpdated(c.x, c.y, c.width, c.height); |
15983 | 325 |
} |
326 |
}); |
|
327 |
} finally { |
|
17415
62b97a10da72
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parents:
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diff
changeset
|
328 |
if (!copyBufferEnabled) { |
62b97a10da72
8014227: JLightweightFrame needs another synchronization policy
ant
parents:
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diff
changeset
|
329 |
content.paintUnlock(); |
62b97a10da72
8014227: JLightweightFrame needs another synchronization policy
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parents:
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diff
changeset
|
330 |
} |
15983 | 331 |
} |
332 |
} |
|
333 |
@Override |
|
334 |
protected boolean isPaintingOrigin() { |
|
335 |
return true; |
|
336 |
} |
|
337 |
}; |
|
338 |
contentPane.setLayout(new BorderLayout()); |
|
339 |
contentPane.add(component); |
|
20136
594c0830f18c
8022512: JLightweightFrame: the content pane should be transparent
ant
parents:
20127
diff
changeset
|
340 |
if ("true".equals(AccessController. |
594c0830f18c
8022512: JLightweightFrame: the content pane should be transparent
ant
parents:
20127
diff
changeset
|
341 |
doPrivileged(new GetPropertyAction("swing.jlf.contentPaneTransparent", "false")))) |
594c0830f18c
8022512: JLightweightFrame: the content pane should be transparent
ant
parents:
20127
diff
changeset
|
342 |
{ |
594c0830f18c
8022512: JLightweightFrame: the content pane should be transparent
ant
parents:
20127
diff
changeset
|
343 |
contentPane.setOpaque(false); |
594c0830f18c
8022512: JLightweightFrame: the content pane should be transparent
ant
parents:
20127
diff
changeset
|
344 |
} |
15983 | 345 |
setContentPane(contentPane); |
19026
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8020927: JLightweightFrame API should export layout properties change notifications
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changeset
|
346 |
|
96141cb8d7eb
8020927: JLightweightFrame API should export layout properties change notifications
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changeset
|
347 |
contentPane.addContainerListener(new ContainerListener() { |
96141cb8d7eb
8020927: JLightweightFrame API should export layout properties change notifications
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changeset
|
348 |
@Override |
96141cb8d7eb
8020927: JLightweightFrame API should export layout properties change notifications
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changeset
|
349 |
public void componentAdded(ContainerEvent e) { |
96141cb8d7eb
8020927: JLightweightFrame API should export layout properties change notifications
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parents:
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changeset
|
350 |
Component c = JLightweightFrame.this.component; |
96141cb8d7eb
8020927: JLightweightFrame API should export layout properties change notifications
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parents:
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changeset
|
351 |
if (e.getChild() == c) { |
96141cb8d7eb
8020927: JLightweightFrame API should export layout properties change notifications
ant
parents:
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diff
changeset
|
352 |
c.addPropertyChangeListener("preferredSize", layoutSizeListener); |
96141cb8d7eb
8020927: JLightweightFrame API should export layout properties change notifications
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diff
changeset
|
353 |
c.addPropertyChangeListener("maximumSize", layoutSizeListener); |
96141cb8d7eb
8020927: JLightweightFrame API should export layout properties change notifications
ant
parents:
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diff
changeset
|
354 |
c.addPropertyChangeListener("minimumSize", layoutSizeListener); |
96141cb8d7eb
8020927: JLightweightFrame API should export layout properties change notifications
ant
parents:
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diff
changeset
|
355 |
} |
96141cb8d7eb
8020927: JLightweightFrame API should export layout properties change notifications
ant
parents:
17415
diff
changeset
|
356 |
} |
96141cb8d7eb
8020927: JLightweightFrame API should export layout properties change notifications
ant
parents:
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diff
changeset
|
357 |
@Override |
96141cb8d7eb
8020927: JLightweightFrame API should export layout properties change notifications
ant
parents:
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changeset
|
358 |
public void componentRemoved(ContainerEvent e) { |
96141cb8d7eb
8020927: JLightweightFrame API should export layout properties change notifications
ant
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diff
changeset
|
359 |
Component c = JLightweightFrame.this.component; |
96141cb8d7eb
8020927: JLightweightFrame API should export layout properties change notifications
ant
parents:
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diff
changeset
|
360 |
if (e.getChild() == c) { |
96141cb8d7eb
8020927: JLightweightFrame API should export layout properties change notifications
ant
parents:
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diff
changeset
|
361 |
c.removePropertyChangeListener(layoutSizeListener); |
96141cb8d7eb
8020927: JLightweightFrame API should export layout properties change notifications
ant
parents:
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diff
changeset
|
362 |
} |
96141cb8d7eb
8020927: JLightweightFrame API should export layout properties change notifications
ant
parents:
17415
diff
changeset
|
363 |
} |
96141cb8d7eb
8020927: JLightweightFrame API should export layout properties change notifications
ant
parents:
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diff
changeset
|
364 |
}); |
15983 | 365 |
} |
366 |
||
367 |
@SuppressWarnings("deprecation") |
|
368 |
@Override public void reshape(int x, int y, int width, int height) { |
|
369 |
super.reshape(x, y, width, height); |
|
370 |
||
371 |
if (width == 0 || height == 0) { |
|
372 |
return; |
|
373 |
} |
|
17415
62b97a10da72
8014227: JLightweightFrame needs another synchronization policy
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parents:
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diff
changeset
|
374 |
if (!copyBufferEnabled) { |
62b97a10da72
8014227: JLightweightFrame needs another synchronization policy
ant
parents:
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diff
changeset
|
375 |
content.paintLock(); |
62b97a10da72
8014227: JLightweightFrame needs another synchronization policy
ant
parents:
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diff
changeset
|
376 |
} |
15983 | 377 |
try { |
25195
9de77f5b0df2
8029455: [JLightweightFrame] support scaled painting
serb
parents:
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diff
changeset
|
378 |
boolean createBB = (bbImage == null); |
9de77f5b0df2
8029455: [JLightweightFrame] support scaled painting
serb
parents:
23281
diff
changeset
|
379 |
int newW = width; |
9de77f5b0df2
8029455: [JLightweightFrame] support scaled painting
serb
parents:
23281
diff
changeset
|
380 |
int newH = height; |
9de77f5b0df2
8029455: [JLightweightFrame] support scaled painting
serb
parents:
23281
diff
changeset
|
381 |
if (bbImage != null) { |
9de77f5b0df2
8029455: [JLightweightFrame] support scaled painting
serb
parents:
23281
diff
changeset
|
382 |
int imgWidth = bbImage.getWidth() / scaleFactor; |
9de77f5b0df2
8029455: [JLightweightFrame] support scaled painting
serb
parents:
23281
diff
changeset
|
383 |
int imgHeight = bbImage.getHeight() / scaleFactor; |
9de77f5b0df2
8029455: [JLightweightFrame] support scaled painting
serb
parents:
23281
diff
changeset
|
384 |
if (width != imgWidth || height != imgHeight) { |
9de77f5b0df2
8029455: [JLightweightFrame] support scaled painting
serb
parents:
23281
diff
changeset
|
385 |
createBB = true; |
9de77f5b0df2
8029455: [JLightweightFrame] support scaled painting
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|
386 |
if (bbImage != null) { |
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|
387 |
int oldW = imgWidth; |
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|
388 |
int oldH = imgHeight; |
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|
389 |
if ((oldW >= newW) && (oldH >= newH)) { |
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|
390 |
createBB = false; |
15983 | 391 |
} else { |
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|
392 |
if (oldW >= newW) { |
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|
393 |
newW = oldW; |
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|
394 |
} else { |
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|
395 |
newW = Math.max((int)(oldW * 1.2), width); |
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|
396 |
} |
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|
397 |
if (oldH >= newH) { |
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|
398 |
newH = oldH; |
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|
399 |
} else { |
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|
400 |
newH = Math.max((int)(oldH * 1.2), height); |
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|
401 |
} |
15983 | 402 |
} |
403 |
} |
|
404 |
} |
|
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|
405 |
} |
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|
406 |
if (createBB) { |
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|
407 |
resizeBuffer(newW, newH, scaleFactor); |
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|
408 |
return; |
15983 | 409 |
} |
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|
410 |
content.imageReshaped(0, 0, width, height); |
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|
411 |
|
15983 | 412 |
} finally { |
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|
413 |
if (!copyBufferEnabled) { |
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|
414 |
content.paintUnlock(); |
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|
415 |
} |
15983 | 416 |
} |
417 |
} |
|
418 |
||
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|
419 |
private void resizeBuffer(int width, int height, int newScaleFactor) { |
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|
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bbImage = new BufferedImage(width*newScaleFactor,height*newScaleFactor, |
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|
421 |
BufferedImage.TYPE_INT_ARGB_PRE); |
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|
422 |
int[] pixels= ((DataBufferInt)bbImage.getRaster().getDataBuffer()).getData(); |
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|
423 |
if (copyBufferEnabled) { |
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|
424 |
syncCopyBuffer(true, 0, 0, width, height, newScaleFactor); |
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|
425 |
pixels = copyBuffer; |
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|
426 |
} |
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|
427 |
content.imageBufferReset(pixels, 0, 0, width, height, |
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|
428 |
width * newScaleFactor, newScaleFactor); |
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|
429 |
} |
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|
430 |
|
15983 | 431 |
@Override |
432 |
public JRootPane getRootPane() { |
|
433 |
return rootPane; |
|
434 |
} |
|
435 |
||
436 |
@Override |
|
437 |
public void setContentPane(Container contentPane) { |
|
438 |
getRootPane().setContentPane(contentPane); |
|
439 |
} |
|
440 |
||
441 |
@Override |
|
442 |
public Container getContentPane() { |
|
443 |
return getRootPane().getContentPane(); |
|
444 |
} |
|
445 |
||
446 |
@Override |
|
447 |
public void setLayeredPane(JLayeredPane layeredPane) { |
|
448 |
getRootPane().setLayeredPane(layeredPane); |
|
449 |
} |
|
450 |
||
451 |
@Override |
|
452 |
public JLayeredPane getLayeredPane() { |
|
453 |
return getRootPane().getLayeredPane(); |
|
454 |
} |
|
455 |
||
456 |
@Override |
|
457 |
public void setGlassPane(Component glassPane) { |
|
458 |
getRootPane().setGlassPane(glassPane); |
|
459 |
} |
|
460 |
||
461 |
@Override |
|
462 |
public Component getGlassPane() { |
|
463 |
return getRootPane().getGlassPane(); |
|
464 |
} |
|
20127 | 465 |
|
466 |
||
467 |
/* |
|
468 |
* Notifies client toolkit that it should change a cursor. |
|
469 |
* |
|
470 |
* Called from the peer via SwingAccessor, because the |
|
471 |
* Component.updateCursorImmediately method is final |
|
472 |
* and could not be overridden. |
|
473 |
*/ |
|
474 |
private void updateClientCursor() { |
|
475 |
Point p = MouseInfo.getPointerInfo().getLocation(); |
|
476 |
SwingUtilities.convertPointFromScreen(p, this); |
|
477 |
Component target = SwingUtilities.getDeepestComponentAt(this, p.x, p.y); |
|
478 |
if (target != null) { |
|
479 |
content.setCursor(target.getCursor()); |
|
480 |
} |
|
481 |
} |
|
26342
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changeset
|
482 |
|
3637212ae8f2
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changeset
|
483 |
public <T extends DragGestureRecognizer> T createDragGestureRecognizer( |
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|
484 |
Class<T> abstractRecognizerClass, |
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|
485 |
DragSource ds, Component c, int srcActions, |
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changeset
|
486 |
DragGestureListener dgl) |
3637212ae8f2
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changeset
|
487 |
{ |
3637212ae8f2
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changeset
|
488 |
return content == null ? null : content.createDragGestureRecognizer( |
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changeset
|
489 |
abstractRecognizerClass, ds, c, srcActions, dgl); |
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changeset
|
490 |
} |
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changeset
|
491 |
|
3637212ae8f2
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changeset
|
492 |
public DragSourceContextPeer createDragSourceContextPeer(DragGestureEvent dge) throws InvalidDnDOperationException { |
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|
493 |
return content == null ? null : content.createDragSourceContextPeer(dge); |
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changeset
|
494 |
} |
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changeset
|
495 |
|
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changeset
|
496 |
public void addDropTarget(DropTarget dt) { |
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changeset
|
497 |
if (content == null) return; |
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changeset
|
498 |
content.addDropTarget(dt); |
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diff
changeset
|
499 |
} |
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changeset
|
500 |
|
3637212ae8f2
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changeset
|
501 |
public void removeDropTarget(DropTarget dt) { |
3637212ae8f2
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changeset
|
502 |
if (content == null) return; |
3637212ae8f2
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changeset
|
503 |
content.removeDropTarget(dt); |
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|
504 |
} |
15983 | 505 |
} |