Add TaskbarNotificationBackend

[quassel.git] / src / qtui / chatscene.h

diff --git a/src/qtui/chatscene.h b/src/qtui/chatscene.h
index fa44102..2204d66 100644 (file)
--- a/src/qtui/chatscene.h
+++ b/src/qtui/chatscene.h
@@ -31,6 +31,7 @@
 class AbstractUiMsg;
 class ChatItem;
 class ChatLine;
+class WebPreviewItem;
 
 class QGraphicsSceneMouseEvent;
 
@@ -38,6 +39,11 @@ class ChatScene : public QGraphicsScene {
   Q_OBJECT
 
 public:
+  enum MyEventTypes {
+    ClearWebPreviewEventType = QEvent::User
+  };
+  class ClearWebPreviewEvent;
+
   ChatScene(QAbstractItemModel *model, const QString &idString, qreal width, QObject *parent);
   virtual ~ChatScene();
 
@@ -53,7 +59,10 @@ public:
   inline ColumnHandleItem *firstColumnHandle() const { return firstColHandle; }
   inline ColumnHandleItem *secondColumnHandle() const { return secondColHandle; }
 
+  virtual bool eventFilter(QObject *watched, QEvent *event);
+
 public slots:
+  void updateForViewport(qreal width, qreal height);
   void setWidth(qreal, bool forceReposition = false);
 
   // these are used by the chatitems to notify the scene and manage selections
@@ -64,13 +73,17 @@ public slots:
 
   void requestBacklog();
 
+  void loadWebPreview(ChatItem *parentItem, const QString &url, const QRectF &urlRect);
+  void clearWebPreview(ChatItem *parentItem = 0);
+
 signals:
-  void sceneHeightChanged(qreal dh);
+  void lastLineChanged(QGraphicsItem *item, qreal offset);
 
 protected:
   virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent);
   virtual void mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent);
   virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent);
+  virtual void customEvent(QEvent *event);
 
 protected slots:
   void rowsInserted(const QModelIndex &, int, int);
@@ -78,6 +91,8 @@ protected slots:
 
 private slots:
   void handlePositionChanged(qreal xpos);
+  void showWebPreview();
+  void clearWebPreviewEvent(ClearWebPreviewEvent *event);
 
 private:
   void setHandleXLimits();
@@ -92,7 +107,11 @@ private:
   // calls to QChatScene::sceneRect() are very expensive. As we manage the scenerect ourselves
   // we store the size in a member variable.
   QRectF _sceneRect;
+  int _firstLineRow; // the first row to display (aka: not a daychange msg)
+  void updateSceneRect();
+  void updateSceneRect(qreal width);
   void updateSceneRect(const QRectF &rect);
+  qreal _viewportHeight;
 
   ColumnHandleItem *firstColHandle, *secondColHandle;
   qreal firstColHandlePos, secondColHandlePos;
@@ -105,10 +124,24 @@ private:
   bool _isSelecting;
 
   int _lastBacklogSize;
+
+  struct WebPreview {
+    ChatItem *parentItem;
+    WebPreviewItem *previewItem;
+    QString url;
+    QRectF urlRect;
+    QTimer delayTimer;
+    WebPreview() : parentItem(0), previewItem(0) {}
+  };
+  WebPreview webPreview;
 };
 
 bool ChatScene::containsBuffer(const BufferId &id) const {
-  return qobject_cast<MessageFilter*>(model()) ? qobject_cast<MessageFilter*>(model())->containsBuffer(id) : false;
+  MessageFilter *filter = qobject_cast<MessageFilter*>(model());
+  if(filter)
+    return filter->containsBuffer(id);
+  else
+    return false;
 }
 
 #endif