Fix cover download.

Ensure that the cache directory for covers
exists.

Also, properly reload the artist image in artist
list when a cover is associated to an artist.

Rewrite the text position on cover with a direct
calculation of the Y position, the anchors solution
with alternating undefined values seems not to work
properly, when a cover is associated to an artist
for instance.

qml/pages/CoverArtList.qml

@@ -66,7 +66,9 @@ BackgroundItem
     Connections {
         target: coversearch
         onImageChanged: {
-            if ((artist===dartist && album==dalbum) || (album===dartist && album==dalbum)) {
+            if ((artist===dartist && album==dalbum)
+                || (album===dartist && album==dalbum)
+                || (album===dartist && !dalbum)) {
                 console.log("Updated: " + artist + " - " + album)
                 reload()
             }
@@ -113,9 +115,9 @@ BackgroundItem
 
     Label {
         id: vtext
-        anchors.verticalCenter: coverImg.status!=Image.Error && textvisible? undefined : parent.verticalCenter
-        anchors.bottom: coverImg.status!=Image.Error && textvisible? parent.bottom : undefined
-        anchors.bottomMargin: coverImg.status!=Image.Error && textvisible? Theme.paddingSmall : undefined
+        y: coverImg.status!=Image.Error && textvisible
+            ? parent.height - height - Theme.paddingSmall
+            : (parent.height - height) / 2
         anchors.left: parent.left
         anchors.leftMargin: Theme.paddingMedium
         width: parent.width - Theme.paddingMedium*2

src/coversearch.cpp

@@ -2,6 +2,7 @@
 
 //#include <QDeclarativeView>
 #include <QDebug>
+#include <QDir>
 #include <QString>
 #include <QStringList>
 #include <QJsonDocument>
@@ -39,6 +40,9 @@ CoverSearch::CoverSearchPrivate::CoverSearchPrivate(CoverSearch * parent) : q(pa
     //q->pepe = new WebThread();
     //connect (q->pepe, SIGNAL(imgLoaded(QString,int)), parent, SLOT(paintImg(QString,int)) );
 
+    // Ensure that download destination exists.
+    QDir d;
+    d.mkpath(QStandardPaths::writableLocation(QStandardPaths::CacheLocation));
 }
 
 CoverSearch::CoverSearchPrivate::~CoverSearchPrivate()