From 8230ea0228bd300316529c852858f7105ee75a3d Mon Sep 17 00:00:00 2001
From: Arno <am@disconnect.de>
Date: Fri, 5 Nov 2010 15:20:44 +0100
Subject: Let ConsistencyChecker run in QThread

Until now ConsistencyChecker ran in the GUI-Thread. According to the
docs the event loop of the QThread needs to be started to run something
in the thread. So use a QTimer::singleShot() to start the check
function.
---
 consistencycheck.cpp | 52 ++++++++++++++++++++++++++++++++--------------------
 1 file changed, 32 insertions(+), 20 deletions(-)

(limited to 'consistencycheck.cpp')

diff --git a/consistencycheck.cpp b/consistencycheck.cpp
index b281942..7e02304 100644
--- a/consistencycheck.cpp
+++ b/consistencycheck.cpp
@@ -20,8 +20,7 @@
 #include <QBrush>
 #include <QTextBlock>
 #include <QCheckBox>
-
-#include <QDebug>
+#include <QTimer>
 
 #include "consistencycheck.h"
 #include "helper.h"
@@ -31,7 +30,7 @@ ConsistencyCheck::ConsistencyCheck(QWidget *parent, Qt::WindowFlags f) : QDialog
 	mCheckLabel = new QLabel(tr("Checking database consistency"));
 	mDisplay = new QPlainTextEdit;
 	mDisplay->setReadOnly(true);
-	mCancelExit = new QPushButton(tr("Cancel"));
+	mCancelExit = new QPushButton(tr("Close"));
 	mCheckDb = new QPushButton(tr("Check database"));
 	mCheckFs = new QPushButton(tr("Check Filesystem"));
 	mErrorsOnly = new QCheckBox(tr("Show only errors"));
@@ -41,7 +40,7 @@ ConsistencyCheck::ConsistencyCheck(QWidget *parent, Qt::WindowFlags f) : QDialog
 	buttonLayout->addWidget(mCheckFs);
 	buttonLayout->addStretch();
 	buttonLayout->addWidget(mCancelExit);
-	connect(mCancelExit, SIGNAL(clicked()), this, SLOT(cancelExit()));
+	connect(mCancelExit, SIGNAL(clicked()), this, SLOT(accept()));
 
 	// signal mapper
 	QSignalMapper *mapper = new QSignalMapper(this);
@@ -51,6 +50,11 @@ ConsistencyCheck::ConsistencyCheck(QWidget *parent, Qt::WindowFlags f) : QDialog
 	mapper->setMapping(mCheckFs, ConsistencyCheck::FsCheck);
 	connect(mapper, SIGNAL(mapped(int)), this, SLOT(startChecker(int)));
 
+	//misc
+	mChecker = new ConsistencyChecker(this);
+	connect(mChecker, SIGNAL(started()), this, SLOT(checkerStarted()));
+	connect(mChecker, SIGNAL(finished()), this, SLOT(checkerFinished()));
+
 	// main layout
 	QVBoxLayout *mainLayout = new QVBoxLayout;
 	mainLayout->addWidget(mCheckLabel);
@@ -62,7 +66,6 @@ ConsistencyCheck::ConsistencyCheck(QWidget *parent, Qt::WindowFlags f) : QDialog
 }
 
 void ConsistencyCheck::startChecker(int checkerType){
-	mChecker = new ConsistencyChecker;
 	if(mChecker->status() == ConsistencyChecker::Fail){
 		return;
 	}
@@ -96,14 +99,25 @@ void ConsistencyCheck::addMessage(const QString &message){
 	cursor.insertText(message);
 }
 
-void ConsistencyCheck::cancelExit(){
-	if(mChecker->isRunning()){
-		mChecker->cancel(true);
-		mCancelExit->setText(tr("Close"));
-		connect(mCancelExit, SIGNAL(clicked()), this, SLOT(accept()));
-	}else{
-		close();
-	}
+void ConsistencyCheck::checkerStarted(){
+	mCheckDb->setEnabled(false);
+	mCheckFs->setEnabled(false);
+	mCancelExit->setText(tr("Cancel"));
+	mCancelExit->disconnect();
+	connect(mCancelExit, SIGNAL(clicked()), this, SLOT(cancelChecker()));
+}
+
+void ConsistencyCheck::checkerFinished(){
+	mCheckDb->setEnabled(true);
+	mCheckFs->setEnabled(true);
+	mCancelExit->setText(tr("Close"));
+	mCancelExit->disconnect();
+	connect(mCancelExit, SIGNAL(clicked()), this, SLOT(accept()));
+	mChecker->setCancel(false);
+}
+
+void ConsistencyCheck::cancelChecker(){
+	mChecker->setCancel(true);
 }
 
 void ConsistencyCheck::showErrorsChanged(int state){
@@ -111,7 +125,6 @@ void ConsistencyCheck::showErrorsChanged(int state){
 	for(QTextBlock it = doc->begin(); it != doc->end(); it = it.next()){
 		if(it.text().startsWith("OK")){
 			if(state == Qt::Checked){
-				qDebug() << it.text();
 				it.setVisible(false);
 			}else{
 				it.setVisible(true);
@@ -134,12 +147,9 @@ void ConsistencyChecker::check(){
 	}
 }
 
-void ConsistencyChecker::cancel(bool cancel){
-	if(!cancel){
-		return;
-	}
+void ConsistencyChecker::setCancel(bool cancel){
 	QMutexLocker locker(&mCancelMutex);
-	mCanceled = true;
+	mCanceled = cancel;
 }
 
 ConsistencyChecker::~ConsistencyChecker(){
@@ -149,7 +159,8 @@ ConsistencyChecker::~ConsistencyChecker(){
 void ConsistencyChecker::run(){
 	switch(mMode){
 		case ConsistencyCheck::DbCheck:
-			dbCheck();
+			QTimer::singleShot(0, this, SLOT(dbCheck()));
+			exec();
 			break;
 		default:
 			;
@@ -187,6 +198,7 @@ void ConsistencyChecker::dbCheck(){
 			}
 		}
 	}
+	quit();
 }
 
 QString ConsistencyChecker::archivePath(const QString &fileName, const QString &md5sum) const {
-- 
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