Refactor device tree setup a bit.

- reorder value retrieval (display names etc) to cut down the number of
  necessary accesses. While this is not critical it cuts down the noise
  generated in the trace noticably.
- match the old target by its internal name instead of the display name.
- remove two access functions in SystemInfo that are not really needed anymore.
  Accessing the values via platformValue() is much more logical and in line with
  the rest of the value accesses.
- try to scroll to the selected item in the device list after setup and
  detection.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24988 a1c6a512-1295-4272-9138-f99709370657

rbutil/rbutilqt/base/systeminfo.cpp

@@ -156,18 +156,6 @@ QStringList SystemInfo::languages()
 }
 
 
-QString SystemInfo::name(QString platform)
-{
-    ensureSystemInfoExists();
-    return systemInfos->value(platform + "/name").toString();
-}
-
-QString SystemInfo::brand(QString platform)
-{
-    ensureSystemInfoExists();
-    return systemInfos->value(platform + "/brand").toString();
-}
-
 QMap<int, QString> SystemInfo::usbIdMap(enum MapType type)
 {
     ensureSystemInfoExists();

rbutil/rbutilqt/base/systeminfo.h

@@ -77,10 +77,6 @@ class SystemInfo : public QObject
                                      QString variant="");
         //! returns a list of all languages
         static QStringList languages(void);
-        //! maps a platform to its name
-        static QString name(QString platform);
-        //! maps a platform to its brand
-        static QString brand(QString platform);
         //! returns a map of usb-ids and their targets
         static QMap<int, QString> usbIdMap(enum MapType);
         //! get a value from system settings

rbutil/rbutilqt/configure.cpp

@@ -309,20 +309,13 @@ void Config::setDevices()
         platformList = SystemInfo::platforms(SystemInfo::PlatformAll);
 
     QMap <QString, QString> manuf;
-    QMap <QString, QString> devcs;
     for(int it = 0; it < platformList.size(); it++)
     {
-        QString curname = SystemInfo::name(platformList.at(it)) +
-            " (" +ServerInfo::platformValue(platformList.at(it),
-                        ServerInfo::CurStatus).toString() + ")";
-        QString curbrand = SystemInfo::brand(platformList.at(it));
+        QString curbrand = SystemInfo::platformValue(platformList.at(it),
+                    SystemInfo::CurBrand).toString();
         manuf.insertMulti(curbrand, platformList.at(it));
-        devcs.insert(platformList.at(it), curname);
     }
 
-    QString platform;
-    platform = devcs.value(RbSettings::value(RbSettings::Platform).toString());
-
     // set up devices table
     ui.treeDevices->header()->hide();
     ui.treeDevices->expandAll();
@@ -334,25 +327,28 @@ void Config::setDevices()
     QTreeWidgetItem *w;
     QTreeWidgetItem *w2;
     QTreeWidgetItem *w3 = 0;
+
+    QString selected = RbSettings::value(RbSettings::Platform).toString();
     for(int c = 0; c < brands.size(); c++) {
         w = new QTreeWidgetItem();
         w->setFlags(Qt::ItemIsEnabled);
         w->setText(0, brands.at(c));
         items.append(w);
-
-        // go through platforms again for sake of order
+        // go through platforms and add all players matching the current brand
         for(int it = 0; it < platformList.size(); it++) {
-
-            QString curname = SystemInfo::name(platformList.at(it)) +
-                " (" +ServerInfo::platformValue(platformList.at(it),ServerInfo::CurStatus).toString() +")";
-            QString curbrand = SystemInfo::brand(platformList.at(it));
-
-            if(curbrand != brands.at(c)) continue;
+            // skip if not current brand
+            if(!manuf.values(brands.at(c)).contains(platformList.at(it)))
+                continue;
+            // construct display name
+            QString curname = SystemInfo::platformValue(platformList.at(it),
+                                SystemInfo::CurName).toString() +
+                " (" +ServerInfo::platformValue(platformList.at(it),
+                            ServerInfo::CurStatus).toString() +")";
             qDebug() << "[Config] add supported device:" << brands.at(c) << curname;
             w2 = new QTreeWidgetItem(w, QStringList(curname));
             w2->setData(0, Qt::UserRole, platformList.at(it));
 
-            if(platform.contains(curname)) {
+            if(platformList.at(it) == selected) {
                 w2->setSelected(true);
                 w->setExpanded(true);
                 w3 = w2; // save pointer to hilight old selection
@@ -369,8 +365,10 @@ void Config::setDevices()
     while(widgetitem);
     // add new items
     ui.treeDevices->insertTopLevelItems(0, items);
-    if(w3 != 0)
+    if(w3 != 0) {
         ui.treeDevices->setCurrentItem(w3); // hilight old selection
+        ui.treeDevices->scrollToItem(w3);
+    }
 
     // tts / encoder tab
 
@@ -589,7 +587,8 @@ void Config::autodetect()
 
         // find the new item
         // enumerate all platform items
-        QList<QTreeWidgetItem*> itmList= ui.treeDevices->findItems("*",Qt::MatchWildcard);
+        QList<QTreeWidgetItem*> itmList
+            = ui.treeDevices->findItems("*",Qt::MatchWildcard);
         for(int i=0; i< itmList.size();i++)
         {
             //enumerate device items
@@ -602,6 +601,7 @@ void Config::autodetect()
                     itmList.at(i)->child(j)->setSelected(true); //select the item
                     itmList.at(i)->setExpanded(true); //expand the platform item
                     //ui.treeDevices->indexOfTopLevelItem(itmList.at(i)->child(j));
+                    ui.treeDevices->scrollToItem(itmList.at(i)->child(j));
                     break;
                 }
             }