/*
* Created on Apr 30, 2004
* Created by Olivier Chalouhi
* Copyright (C) 2004, 2005, 2006 Aelitis, All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program 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 for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* AELITIS, SAS au capital de 46,603.30 euros
* 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
*
*/
package org.gudy.azureus2.ui.swt.mainwindow;
import java.util.*;
import java.lang.reflect.Constructor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.SWTException;
import org.eclipse.swt.widgets.Display;
import org.gudy.azureus2.core3.config.COConfigurationManager;
import org.gudy.azureus2.core3.internat.MessageText;
import org.gudy.azureus2.core3.logging.LogAlert;
import org.gudy.azureus2.core3.logging.LogEvent;
import org.gudy.azureus2.core3.logging.LogIDs;
import org.gudy.azureus2.core3.logging.Logger;
import org.gudy.azureus2.core3.util.*;
import org.gudy.azureus2.platform.PlatformManagerFactory;
import org.gudy.azureus2.ui.swt.Alerts;
import com.aelitis.azureus.ui.IUIIntializer;
/**
* The main SWT Thread, the only one that should run any GUI code.
*/
public class SWTThread {
private static final int FREQ_PER_SEC_LIMIT = 10;
private static SWTThread instance;
public static SWTThread getInstance() {
return instance;
}
public static void createInstance(IUIIntializer initializer) throws SWTThreadAlreadyInstanciatedException {
if(instance != null) {
throw new SWTThreadAlreadyInstanciatedException();
}
// set SWT specific config parameter defaults
boolean bGTKTableBug_default = SWT.getPlatform().equals("gtk");
COConfigurationManager.setBooleanDefault( "SWT_bGTKTableBug", bGTKTableBug_default );
//Will only return on termination
new SWTThread(initializer);
}
Display display;
private boolean sleak;
private boolean terminated;
private Thread runner;
private final IUIIntializer initializer;
private Map freq_map = new HashMap();
private
SWTThread(
final IUIIntializer app )
{
this.initializer = app;
instance = this;
try {
display = Display.getCurrent();
if ( display == null ){
display = new Display();
sleak = false;
}else{
sleak = true;
}
} catch(Exception e) {
display = new Display();
sleak = false;
}
Display.setAppName("Azureus");
AEDiagnostics.addEvidenceGenerator(new AEDiagnosticsEvidenceGenerator() {
public void generate(IndentWriter writer) {
writer.println("SWT");
try {
writer.indent();
writer.println("SWT Version:" + SWT.getVersion() + "/"
+ SWT.getPlatform());
writer.println("org.eclipse.swt.browser.XULRunnerPath: "
+ System.getProperty("org.eclipse.swt.browser.XULRunnerPath", ""));
writer.println("MOZILLA_FIVE_HOME: "
+ SystemProperties.getEnvironmentalVariable("MOZILLA_FIVE_HOME"));
} finally {
writer.exdent();
}
}
});
if ( Constants.isOSX ){
// use reflection here so we decouple generic SWT from OSX specific stuff to an extent
try{
Class ehancerClass = Class.forName("org.gudy.azureus2.ui.swt.osx.CarbonUIEnhancer");
Constructor constructor = ehancerClass.getConstructor(new Class[]{});
constructor.newInstance(new Object[] {});
} catch (Exception e) {
Debug.printStackTrace(e);
}
}
if (app != null) {
runner = new Thread(new AERunnable() {
public void runSupport() {
app.run();
}
}, "Main Thread");
runner.start();
}
if(!sleak) {
while(!display.isDisposed() && !terminated) {
try {
if (!display.readAndDispatch())
display.sleep();
}
catch (Throwable e) {
if (Constants.isOSX && (e instanceof SWTException)
&& e.getMessage().endsWith(" is disposed")
&& (terminated || Debug.getStackTrace(e).indexOf("DropTarget") > 0)) {
Logger.log(new LogEvent(LogIDs.GUI,
"Weird non-critical display disposal in readAndDispatch"));
} else {
// Must use printStackTrace() (no params) in order to get
// "cause of"'s stack trace in SWT < 3119
if (SWT.getVersion() < 3119)
e.printStackTrace();
Logger.log(new LogAlert(LogAlert.UNREPEATABLE,MessageText.getString("SWT.alert.erroringuithread"),e));
}
}
}
if(!terminated) {
// if we've falled out of the loop without being explicitly terminated then
// this appears to have been caused by a non-specific exit/restart request (as the
// specific ones should terminate us before disposing of the window...)
app.stopIt( false, false );
terminated = true;
}
try {
if (!display.isDisposed())
display.dispose();
} catch (Throwable t) {
// Must use printStackTrace() (no params) in order to get
// "cause of"'s stack trace in SWT < 3119
if (SWT.getVersion() < 3119)
t.printStackTrace();
else
Debug.printStackTrace(t);
}
// dispose platform manager here
PlatformManagerFactory.getPlatformManager().dispose();
}
}
public void terminate() {
terminated = true;
// must dispose here in case another window has take over the
// readAndDispatch/sleep loop
display.dispose();
}
public Display getDisplay() {
return display;
}
public boolean isTerminated() {
return terminated;
}
public IUIIntializer getInitializer() {
return initializer;
}
public void
limitFrequencyAsyncExec(
Object owner,
Display display,
AERunnable target )
{
if ( display.isDisposed()){
return;
}
int now = (int)( SystemTime.getCurrentTime()/1000 );
boolean do_it = true;
synchronized( freq_map ){
if ( freq_map.size() > 1024 ){
Debug.out( "Frequency map is overloaded - check your logic!!!!" );
}else{
int[] data = (int[])freq_map.get( owner );
if ( data == null ){
data = new int[]{ now, 0 };
freq_map.put( owner, data );
}
if ( data[0] == now ){
data[1]++;
if ( data[1] > FREQ_PER_SEC_LIMIT ){
do_it = false;
Debug.out( "SWT frequency limit exceeded for " + owner.getClass());
}
}else{
data[0] = now;
data[1] = 1;
}
}
}
if ( do_it ){
display.asyncExec( target );
}
}
}
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