first crude direction support for tooltips

it still needs support for diagonal movements

src/declarativeimports/core/tooltip.cpp

@@ -78,6 +78,27 @@ void ToolTip::showToolTip()
     }
 
     dlg->setMainItem(mainItem());
+
+    //heuristics for knowing the diration
+    Plasma::Types::Direction dir = Plasma::Types::Up;
+    QPoint pos = mapToScene(QPoint(0, 0)).toPoint();
+
+    if (window() && window()->screen()) {
+        pos = window()->mapToGlobal(pos);
+    }
+    QPoint popupPos = dlg->popupPosition(this, Qt::AlignCenter);
+
+    if (pos.y() + height() <= popupPos.y()) {
+        dir = Plasma::Types::Down;
+    } else if (pos.x() + width() <= popupPos.x()) {
+        dir = Plasma::Types::Right;
+    } else if (pos.y() >= popupPos.y() + dlg->height()) {
+        dir = Plasma::Types::Up;
+    } else if (pos.x() >= popupPos.x() + dlg->width()) {
+        dir = Plasma::Types::Left;
+    }
+
+    dlg->setDirection(dir);
     dlg->setVisible(true);
     dlg->setVisualParent(this);
 }

src/declarativeimports/core/tooltipdialog.cpp

@@ -34,10 +34,12 @@ ToolTipDialog::ToolTipDialog(QQuickItem  *parent)
     : DialogProxy(parent),
       m_qmlObject(0),
       m_animation(0),
-      m_hideTimeout(4000)
+      m_hideTimeout(4000),
+      m_direction(Plasma::Types::Up)
 {
     setFlags(Qt::ToolTip);
     setLocation(Plasma::Types::Floating);
+    setDirection(Plasma::Types::Up);
     m_frameSvgItem->setImagePath("widgets/tooltip");
 
     m_showTimer = new QTimer(this);
@@ -70,6 +72,16 @@ QQuickItem *ToolTipDialog::loadDefaultItem()
     return qobject_cast<QQuickItem *>(m_qmlObject->rootObject());
 }
 
+Plasma::Types::Direction ToolTipDialog::direction() const
+{
+    return m_direction;
+}
+
+void ToolTipDialog::setDirection(Plasma::Types::Direction loc)
+{
+    m_direction = loc;
+}
+
 void ToolTipDialog::showEvent(QShowEvent *event)
 {
     m_showTimer->start(m_hideTimeout);
@@ -89,6 +101,19 @@ void ToolTipDialog::adjustPosition(const QPoint &point)
             m_animation->setDuration(250);
         }
 
+        switch (m_direction) {
+        case Plasma::Types::Left:
+        case Plasma::Types::Right:
+            setX(point.x());
+            break;
+        case Plasma::Types::Up:
+        case Plasma::Types::Down:
+            setY(point.y());
+            break;
+        default:
+            break;
+        }
+
         m_animation->setStartValue(position());
         m_animation->setEndValue(point);
         m_animation->start();

src/declarativeimports/core/tooltipdialog.h

@@ -47,6 +47,9 @@ public:
 
     QQuickItem *loadDefaultItem();
 
+    Plasma::Types::Direction direction() const;
+    void setDirection(Plasma::Types::Direction loc);
+
     /**
      * animate the position change if visible
      */
@@ -68,6 +71,7 @@ private:
     QTimer *m_showTimer;
     QPropertyAnimation *m_animation;
     int m_hideTimeout;
+    Plasma::Types::Direction m_direction;
 };
 
 #endif