--- a/jdk/src/java.desktop/share/classes/javax/swing/JLayer.java Mon Aug 18 14:03:21 2014 +0100
+++ b/jdk/src/java.desktop/share/classes/javax/swing/JLayer.java Tue Aug 19 10:32:16 2014 -0700
@@ -158,8 +158,9 @@
private LayerUI<? super V> layerUI;
private JPanel glassPane;
private long eventMask;
- private transient boolean isPainting;
- private transient boolean isPaintingImmediately;
+ private transient boolean isPaintCalling;
+ private transient boolean isPaintImmediatelyCalling;
+ private transient boolean isImageUpdateCalling;
private static final LayerEventController eventController =
new LayerEventController();
@@ -405,12 +406,12 @@
* @param h the height of the region to be painted
*/
public void paintImmediately(int x, int y, int w, int h) {
- if (!isPaintingImmediately && getUI() != null) {
- isPaintingImmediately = true;
+ if (!isPaintImmediatelyCalling && getUI() != null) {
+ isPaintImmediatelyCalling = true;
try {
getUI().paintImmediately(x, y, w, h, this);
} finally {
- isPaintingImmediately = false;
+ isPaintImmediatelyCalling = false;
}
} else {
super.paintImmediately(x, y, w, h);
@@ -418,17 +419,44 @@
}
/**
+ * Delegates its functionality to the
+ * {@link javax.swing.plaf.LayerUI#imageUpdate(java.awt.Image, int, int, int, int, int, JLayer)} method,
+ * if the {@code LayerUI} is set.
+ *
+ * @param img the image being observed
+ * @param infoflags see {@code imageUpdate} for more information
+ * @param x the <i>x</i> coordinate
+ * @param y the <i>y</i> coordinate
+ * @param w the width
+ * @param h the height
+ * @return {@code false} if the infoflags indicate that the
+ * image is completely loaded; {@code true} otherwise.
+ */
+ public boolean imageUpdate(Image img, int infoflags, int x, int y, int w, int h) {
+ if (!isImageUpdateCalling && getUI() != null) {
+ isImageUpdateCalling = true;
+ try {
+ return getUI().imageUpdate(img, infoflags, x, y, w, h, this);
+ } finally {
+ isImageUpdateCalling = false;
+ }
+ } else {
+ return super.imageUpdate(img, infoflags, x, y, w, h);
+ }
+ }
+
+ /**
* Delegates all painting to the {@link javax.swing.plaf.LayerUI} object.
*
* @param g the {@code Graphics} to render to
*/
public void paint(Graphics g) {
- if (!isPainting) {
- isPainting = true;
+ if (!isPaintCalling) {
+ isPaintCalling = true;
try {
super.paintComponent(g);
} finally {
- isPainting = false;
+ isPaintCalling = false;
}
} else {
super.paint(g);
@@ -646,15 +674,21 @@
return 1;
}
+ @SuppressWarnings("unchecked")
private void readObject(ObjectInputStream s)
throws IOException, ClassNotFoundException {
- s.defaultReadObject();
- if (layerUI != null) {
- setUI(layerUI);
- }
+ ObjectInputStream.GetField f = s.readFields();
+
+ view = (V) f.get("view", null);
+ glassPane = (JPanel) f.get("glassPane", null);
+ eventMask = f.get("eventMask", 0l);
if (eventMask != 0) {
eventController.updateAWTEventListener(0, eventMask);
}
+ LayerUI<V> newLayerUI = (LayerUI<V>) f.get("layerUI", null);
+ if (newLayerUI != null) {
+ setUI(newLayerUI);
+ }
}
/**