Find/switch a bunch of other "delete" calls on QWidgets to the Qt deleteLater() function instead. This seems to fix the start menu category change crash with Qt 5.5.1

4 files changed, 9 insertions, 8 deletions

diff --git a/lumina-desktop/LPanel.cpp b/lumina-desktop/LPanel.cpp
index b0ead2e0..2940482c 100644
--- a/lumina-desktop/LPanel.cpp
+++ b/lumina-desktop/LPanel.cpp
@@ -67,7 +67,7 @@ void LPanel::prepareToClose(){
   for(int i=0; i<PLUGINS.length(); i++){
     PLUGINS[i]->AboutToClose(); //any last cleanup for this plugin
     layout->takeAt(i); //remove from the layout
-    delete PLUGINS.takeAt(i); //delete the actual widget
+    PLUGINS.takeAt(i)->deleteLater(); //delete the actual widget
     LSession::processEvents();
     i--; //need to back up one space to not miss another plugin
   }	 
@@ -262,7 +262,7 @@ void LPanel::UpdatePanel(bool geomonly){
       static_cast<LSysTray*>(PLUGINS[i])->stop();
     }
     layout->takeAt(i); //remove from the layout
-    delete PLUGINS.takeAt(i); //delete the actual widget
+    PLUGINS.takeAt(i)->deleteLater(); //delete the actual widget
     LSession::processEvents();
     i--; //need to back up one space to not miss another plugin
   }
diff --git a/lumina-desktop/panel-plugins/systemstart/StartMenu.cpp b/lumina-desktop/panel-plugins/systemstart/StartMenu.cpp
index 2c5565df..9f172096 100644
--- a/lumina-desktop/panel-plugins/systemstart/StartMenu.cpp
+++ b/lumina-desktop/panel-plugins/systemstart/StartMenu.cpp
@@ -149,8 +149,7 @@ void StartMenu::UpdateQuickLaunch(QString path, bool keep){
 //        PRIVATE FUNCTIONS
 // ==========================
 void StartMenu::ClearScrollArea(QScrollArea *area){
-  QWidget *wgt = area->takeWidget();
-  delete wgt; //delete the widget and all children
+  area->takeWidget()->deleteLater();
   area->setWidget( new QWidget() ); //create a new widget in the scroll area
   area->widget()->setContentsMargins(0,0,0,0);
     QVBoxLayout *layout = new QVBoxLayout;
@@ -257,6 +256,7 @@ void StartMenu::UpdateApps(){
         connect(it, SIGNAL(RunItem(QString)), this, SLOT(LaunchItem(QString)) );
       }
     }else{
+      //qDebug() << "Show Apps For category:" << CCat;
       //Show the "go back" button
       ItemWidget *it = new ItemWidget(ui->scroll_apps->widget(), CCat, "chcat::::"+CCat, true);
         //if(!it->gooditem){ continue; } //invalid for some reason
@@ -265,6 +265,7 @@ void StartMenu::UpdateApps(){
       //Show apps for this cat
       QList<XDGDesktop> apps = sysapps->value(CCat); 
       for(int i=0; i<apps.length(); i++){
+	//qDebug() << " - App:" << apps[i].name;
         ItemWidget *it = new ItemWidget(ui->scroll_apps->widget(), apps[i] );
         if(!it->gooditem){ continue; } //invalid for some reason
         ui->scroll_apps->widget()->layout()->addWidget(it);
diff --git a/lumina-desktop/panel-plugins/systemtray/LSysTray.cpp b/lumina-desktop/panel-plugins/systemtray/LSysTray.cpp
index a921d314..b6af4451 100644
--- a/lumina-desktop/panel-plugins/systemtray/LSysTray.cpp
+++ b/lumina-desktop/panel-plugins/systemtray/LSysTray.cpp
@@ -65,7 +65,7 @@ void LSysTray::stop(){
       trayIcons[i]->detachApp();
       TrayIcon *cont = trayIcons.takeAt(i);
         LI->removeWidget(cont);
-        delete cont;
+        cont->deleteLater();
     }
   }
   //Now let some other visual tray take over
@@ -92,7 +92,7 @@ void LSysTray::checkAll(){
       TrayIcon *cont = trayIcons.takeAt(i);
       cont->cleanup();
       LI->removeWidget(cont);
-      delete cont;
+      cont->deleteLater();
       i--; //List size changed
       //Re-adjust the maximum widget size to account for what is left
       if(this->layout()->direction()==QBoxLayout::LeftToRight){
@@ -131,7 +131,7 @@ void LSysTray::checkAll(){
 	qDebug() << " - Invalid Tray App: Could Not Embed:"; 
 	trayIcons.takeAt(trayIcons.length()-1); //Always at the end
 	LI->removeWidget(cont);
-	delete cont;
+	cont->deleteLater();
 	continue;
       }
     LI->update(); //make sure there is no blank space in the layout
diff --git a/lumina-desktop/panel-plugins/taskmanager/LTaskManagerPlugin.cpp b/lumina-desktop/panel-plugins/taskmanager/LTaskManagerPlugin.cpp
index be3e665a..3e31a534 100644
--- a/lumina-desktop/panel-plugins/taskmanager/LTaskManagerPlugin.cpp
+++ b/lumina-desktop/panel-plugins/taskmanager/LTaskManagerPlugin.cpp
@@ -57,7 +57,7 @@ void LTaskManagerPlugin::UpdateButtons(){
 	  //Remove the entire button
 	  //qDebug() << "Window Closed: Remove Button" ;
 	  this->layout()->takeAt(i); //remove from the layout
-	  delete BUTTONS.takeAt(i);
+	  BUTTONS.takeAt(i)->deleteLater();
 	  i--;
 	  updated = true; //prevent updating a removed button
 	  break; //break out of the button->window loop