WebPreview is now delayed by 2 seconds.

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

diff --git a/src/qtui/chatscene.h b/src/qtui/chatscene.h
index cd71aac..f3c3d6e 100644 (file)
--- a/src/qtui/chatscene.h
+++ b/src/qtui/chatscene.h
@@ -18,73 +18,123 @@
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
 
-#ifndef _CHATSCENE_H_
-#define _CHATSCENE_H_
+#ifndef CHATSCENE_H_
+#define CHATSCENE_H_
 
 #include <QAbstractItemModel>
 #include <QGraphicsScene>
 #include <QSet>
 
+#include "columnhandleitem.h"
+#include "messagefilter.h"
+
 class AbstractUiMsg;
-class Buffer;
 class ChatItem;
 class ChatLine;
-class ColumnHandleItem;
+class WebPreviewItem;
 
 class QGraphicsSceneMouseEvent;
 
 class ChatScene : public QGraphicsScene {
   Q_OBJECT
 
-  public:
-    ChatScene(QAbstractItemModel *model, const QString &idString, QObject *parent);
-    virtual ~ChatScene();
-
-    Buffer *buffer() const;
-    inline QAbstractItemModel *model() const { return _model; }
-    inline QString idString() const { return _idString; }
-
-  public slots:
-    void setWidth(qreal);
-
-    // these are used by the chatitems to notify the scene and manage selections
-    void setSelectingItem(ChatItem *item);
-    ChatItem *selectingItem() const { return _selectingItem; }
-    void startGlobalSelection(ChatItem *item, const QPointF &itemPos);
-
-  signals:
-    void heightChanged(qreal height);
-
-  protected:
-    virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent);
-    virtual void mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent);
-    virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent);
-
-  protected slots:
-    void rowsInserted(const QModelIndex &, int, int);
-
-  private slots:
-    void rectChanged(const QRectF &);
-    void handlePositionChanged(qreal xpos);
-
-  private:
-    void updateSelection(const QPointF &pos);
-    QString selectionToString() const;
-
-    QString _idString;
-    qreal _width, _height;
-    QAbstractItemModel *_model;
-    QList<ChatLine *> _lines;
-
-    ColumnHandleItem *firstColHandle, *secondColHandle;
-    qreal firstColHandlePos, secondColHandlePos;
-
-    ChatItem *_selectingItem, *_lastItem;
-    QSet<ChatLine *> _selectedItems;
-    int _selectionStartCol, _selectionMinCol;
-    int _selectionStart;
-    int _selectionEnd;
-    bool _isSelecting;
+public:
+  ChatScene(QAbstractItemModel *model, const QString &idString, qreal width, QObject *parent);
+  virtual ~ChatScene();
+
+  inline QAbstractItemModel *model() const { return _model; }
+  inline QString idString() const { return _idString; }
+
+  int sectionByScenePos(int x);
+  inline int sectionByScenePos(const QPoint &pos) { return sectionByScenePos(pos.x()); }
+  inline bool isSingleBufferScene() const { return _singleBufferScene; }
+  inline bool containsBuffer(const BufferId &id) const;
+  inline ChatLine *chatLine(int row) { return (row < _lines.count()) ? _lines[row] : 0; }
+
+  inline ColumnHandleItem *firstColumnHandle() const { return firstColHandle; }
+  inline ColumnHandleItem *secondColumnHandle() const { return secondColHandle; }
+
+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
+  void setSelectingItem(ChatItem *item);
+  ChatItem *selectingItem() const { return _selectingItem; }
+  void startGlobalSelection(ChatItem *item, const QPointF &itemPos);
+  void putToClipboard(const QString &);
+
+  void requestBacklog();
+
+  void loadWebPreview(ChatItem *parentItem, const QString &url, const QRectF &urlRect);
+  void clearWebPreview(ChatItem *parentItem = 0);
+
+signals:
+  void lastLineChanged(QGraphicsItem *);
+
+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);
+  void rowsAboutToBeRemoved(const QModelIndex &, int, int);
+
+private slots:
+  void handlePositionChanged(qreal xpos);
+  void showWebPreview();
+  void clearWebPreviewEvent();
+
+private:
+  void setHandleXLimits();
+  void updateSelection(const QPointF &pos);
+  QString selectionToString() const;
+
+  QString _idString;
+  QAbstractItemModel *_model;
+  QList<ChatLine *> _lines;
+  bool _singleBufferScene;
+
+  // 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;
+
+  ChatItem *_selectingItem;
+  int _selectionStartCol, _selectionMinCol;
+  int _selectionStart;
+  int _selectionEnd;
+  int _firstSelectionRow, _lastSelectionRow;
+  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 {
+  MessageFilter *filter = qobject_cast<MessageFilter*>(model());
+  if(filter)
+    return filter->containsBuffer(id);
+  else
+    return false;
+}
+
 #endif