Process correctly the return value of the confirm dialog.

Update the backup usage label after deleting an entry.
Update the parent metadata size after deleting a node.

backupmanagerform.cpp

@@ -61,12 +61,7 @@ void BackupManagerForm::removeEntry(BackupItem *item)
     msgBox.setMessageText(tr("Are you sure to remove the backup of the following entry?"), item->title);
     msgBox.setMessagePixmap(*item->getIconPixmap(), item->getIconWidth());
 
-    switch(msgBox.exec()) {
-    case QDialogButtonBox::Ok:
-        break;
-    case QDialogButtonBox::Cancel:
-        return;
-    default:
+    if(msgBox.exec() == 0) {
         return;
     }
 
@@ -78,6 +73,15 @@ void BackupManagerForm::removeEntry(BackupItem *item)
         db->remove(obj);
     }
     ui->tableWidget->removeRow(item->row);
+    obj = db->ohfiToObject(obj->metadata.ohfiParent);
+    if(obj) {
+        setBackupUsage(obj->metadata.size);
+    }
+}
+
+void BackupManagerForm::setBackupUsage(quint64 size)
+{
+    ui->usageLabel->setText(tr("Backup disk usage: %1").arg(readable_size(size, true)));
 }
 
 void BackupManagerForm::loadBackupListing(int index)
@@ -138,7 +142,7 @@ void BackupManagerForm::loadBackupListing(int index)
     horiz_header->setResizeMode(QHeaderView::Stretch);
 
     CMAObject *obj = db->ohfiToObject(ohfi);
-    ui->usageLabel->setText(tr("Backup disk usage: %1").arg(readable_size(obj->metadata.size, true)));
+    setBackupUsage(obj->metadata.size);
 
     QList<BackupItem *> item_list;
 

backupmanagerform.h

@@ -41,6 +41,7 @@ public:
 
 private:
     void setupForm();
+    void setBackupUsage(quint64 size);
 
     Ui::BackupManagerForm *ui;
 

cmaobject.cpp

@@ -184,11 +184,12 @@ bool CMAObject::removeReferencedObject()
     }
 }
 
-void CMAObject::updateObjectSize(unsigned long size)
+void CMAObject::updateObjectSize(qint64 size)
 {
     if(parent) {
         parent->updateObjectSize(size);
     }
+    //FIXME: size should be quint64
     metadata.size += size;
 }
 

cmaobject.h

@@ -37,7 +37,7 @@ public:
     void rename(const QString &name);
     bool removeReferencedObject();
     void initObject(const QFileInfo &file);
-    void updateObjectSize(unsigned long size);
+    void updateObjectSize(qint64 size);
     bool hasParent(const CMAObject *obj);
 
     bool operator==(const CMAObject &obj);

database.cpp

@@ -181,6 +181,8 @@ bool Database::removeInternal(root_list &list, const CMAObject *obj)
 
     while(it != list.end()) {
         if(!found && (*it) == obj) {
+            // update the size of the parent objects
+            (*it)->updateObjectSize(-(*it)->metadata.size);
             it = list.erase(it);
             found = true;
         } else if(found && (*it)->metadata.ohfiParent == obj->metadata.ohfi) {