* data->updated

* implement updated for lineedits; need to decide what to do for the rest

svn path=/trunk/KDE/kdebase/workspace/plasma/lib/; revision=666854

dataengine.h

@@ -38,6 +38,7 @@ class PLASMA_EXPORT DataEngine : public QObject
     public:
         typedef QHash<QString, DataEngine*> Dict;
         typedef QHash<QString, QVariant> Data;
+        typedef QHashIterator<QString, QVariant> DataIterator;
 
         DataEngine(QObject* parent);
         virtual ~DataEngine();

widgets/checkbox.cpp

@@ -111,8 +111,7 @@ void CheckBox::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
 
 }
 
-
-void CheckBox::data(const DataEngine::Data&)
+void CheckBox::updated(const DataEngine::Data&)
 {
 }
 

widgets/checkbox.h

@@ -59,7 +59,7 @@ class KDE_EXPORT CheckBox : public DataVisualization,public QGraphicsItem
 
 
     public Q_SLOTS:
-        void data(const DataEngine::Data&);
+        void updated(const DataEngine::Data&);
     Q_SIGNALS:
         void clicked();
     protected:

widgets/lineedit.cpp

@@ -53,8 +53,19 @@ void LineEdit::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
     QGraphicsTextItem::paint(painter, style, widget);
 }
 
-void LineEdit::data(const DataEngine::Data&)
+void LineEdit::updated(const DataEngine::Data& data)
 {
+    DataEngine::DataIterator it(data);
+
+    //TODO: this only shows the first possible data item.
+    //      should it do more?
+    while (it.hasNext()) {
+        it.next();
+        if (it.value().canConvert(QVariant::String)) {
+            setPlainText(it.value().toString());
+            return;
+        }
+    }
 }
 
 } // namespace Plasma

widgets/lineedit.h

@@ -41,8 +41,7 @@ class KDE_EXPORT LineEdit : public QGraphicsTextItem,
         void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
 
     public Q_SLOTS:
-        void data(const DataEngine::Data&);
-
+        void updated(const DataEngine::Data&);
 };
 
 } // namespace Plasma

widgets/pushbutton.cpp

@@ -82,7 +82,7 @@ PushButton::~PushButton()
     delete d;
 }
 
-void PushButton::data(const DataEngine::Data &data)
+void PushButton::updated(const DataEngine::Data &data)
 {
     Q_UNUSED(data)
 }

widgets/pushbutton.h

@@ -91,7 +91,7 @@ class KDE_EXPORT PushButton : public DataVisualization,
         void clicked();
 
     public Q_SLOTS:
-        virtual void data(const DataEngine::Data &);
+        virtual void updated(const DataEngine::Data &);
 
     protected:
         bool isDown();