Fixed crash and memory leak in the AudioWizard of the VOIP plugin.

Please use at least Qt 4.6.4 when compiling RetrosShare with the VOIP plugin because of the fix of the bug QTBUG-11883.

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@5603 b45a01b8-16f6-495d-af2f-9b41ad6348cc

plugins/VOIP/gui/AudioInputConfig.cpp

@@ -276,8 +276,7 @@ void AudioInputConfig::emptyBuffer() {
 }
 
 void AudioInputConfig::on_qpbAudioWizard_clicked() {
-    AudioWizard *aw = new AudioWizard(this);
-    aw->exec();
-    delete aw;
+    AudioWizard aw(this);
+    aw.exec();
     loadSettings();
 }

plugins/VOIP/gui/AudioWizard.cpp

@@ -41,11 +41,28 @@
 
 AudioWizard::~AudioWizard()
 {
+    if (ticker) {
+        ticker->stop();
+    }
     if (inputDevice) {
         inputDevice->stop();
+        delete(inputDevice);
+        inputDevice = NULL;
+    }
+    if (inputProcessor) {
+        inputProcessor->close();
+        delete(inputProcessor);
+        inputProcessor = NULL;
     }
     if (outputDevice) {
         outputDevice->stop();
+        delete(outputDevice);
+        outputDevice = NULL;
+    }
+    if (outputProcessor) {
+        outputProcessor->close();
+        delete(outputProcessor);
+        outputProcessor = NULL;
     }
 }
 

plugins/VOIP/gui/SpeexProcessor.cpp

@@ -95,7 +95,9 @@ SpeexInputProcessor::SpeexInputProcessor(QObject *parent) : QIODevice(parent),
     }
 
 SpeexInputProcessor::~SpeexInputProcessor() {
+    if (preprocessor) {
         speex_preprocess_state_destroy(preprocessor);
+    }
         if (echo_state) {
            speex_echo_state_destroy(echo_state);
         }

retroshare-gui/src/gui/settings/AppearancePage.cpp

@@ -62,8 +62,10 @@ AppearancePage::AppearancePage(QWidget * parent, Qt::WFlags flags)
 
 AppearancePage::~AppearancePage()
 {
-	/* reaload style sheet */
-	Rshare::loadStyleSheet(Settings->getSheetName());
+	if (wasLoaded()) {
+		/* reaload style sheet */
+		Rshare::loadStyleSheet(Settings->getSheetName());
+	}
 }
 
 /** Saves the changes on this page */