Bug Tracker item #3518901, was opened at 2012-04-17 12:48
Message generated for change (Tracker Item Submitted) made by afluegel
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Albert Fluegel (afluegel)
Assigned to: Nobody/Anonymous (nobody)
Summary: Java Viewer of 1.2.0 shows empty screen started as appl
Initial Comment:
When the java viewer of 1.2.0 is started as applet within a browser, the screen
is empty i.e. completely black or gray. This happens at least on Redhat
Enterprise Linux 5 and 6 in firefox with jre 1.6.0_22 and 1.6.0_29 and on
windows 2k3 in internet explorer with jre 1.6.0_03 and on windows 7 in ie with
jre 1.6.0_20 or in other words: i did not find a working combination. An
interesting aspect is: When looking onto a different viewer started in parallel
(vncviewer binary), one can see, that this empty screen is reacting on input:
mouse movements, klicks, keyboard input. It just does not display anything. The
problem can be fixed reverting the changes applied to the file
java/com/tigervnc/vncviewer/PixelBufferImage.java between 1.1.90 and 1.2.0.
These are the diffs, that must be undone to make the display work again when
running as applet:
diff -ru tigervnc-1.1.90/java/com/tigervnc/vncviewer/PixelBufferImage.java
tigervnc-1.2.0/java/com/tigervnc/vncviewer/PixelBufferImage.java
--- tigervnc-1.1.90/java/com/tigervnc/vncviewer/PixelBufferImage.java
2011-12-04 23:58:48.000000000 +0100
+++ tigervnc-1.2.0/java/com/tigervnc/vncviewer/PixelBufferImage.java
2012-02-12 23:20:48.000000000 +0100
@@ -103,8 +103,7 @@
public void put(int x, int y, int w, int h, Graphics g) {
if (ic != null) {
ic.setPixels(x, y, w, h, cm, data, width() * y + x, width());
- g.setClip(x, y, w, h);
- ic.imageComplete(ImageConsumer.SINGLEFRAMEDONE);
+ desktop.repaint(x, y, w, h);
}
}
@@ -116,8 +115,7 @@
super.copyRect(x, y, w, h, srcX, srcY);
if (ic == null) return;
ic.setPixels(x, y, w, h, cm, data, width() * y + x, width());
- g.setClip(x, y, w, h);
- ic.imageComplete(ImageConsumer.SINGLEFRAMEDONE);
+ desktop.repaint(x, y, w, h);
}
// setColourMapEntries() changes some of the entries in the colourmap.
Please have a check. Thanks !
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