* 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 "messagemodel.h"
+#include "columnhandleitem.h"
+#include "messagefilter.h"
class AbstractUiMsg;
-class Buffer;
class ChatItem;
class ChatLine;
+class WebPreviewItem;
+
class QGraphicsSceneMouseEvent;
class ChatScene : public QGraphicsScene {
Q_OBJECT
- public:
- ChatScene(MessageModel *model, QObject *parent);
- virtual ~ChatScene();
+public:
+ enum MyEventTypes {
+ ClearWebPreviewEventType = QEvent::User
+ };
+ class ClearWebPreviewEvent;
+
+ 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; }
+
+ 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
+ void setSelectingItem(ChatItem *item);
+ ChatItem *selectingItem() const { return _selectingItem; }
+ void startGlobalSelection(ChatItem *item, const QPointF &itemPos);
+ void putToClipboard(const QString &);
- Buffer *buffer() const;
- inline MessageModel *model() const { return _model; }
+ void requestBacklog();
- public slots:
+ void loadWebPreview(ChatItem *parentItem, const QString &url, const QRectF &urlRect);
+ void clearWebPreview(ChatItem *parentItem = 0);
- protected slots:
+signals:
+ void lastLineChanged(QGraphicsItem *item, qreal offset);
- void mousePressEvent ( QGraphicsSceneMouseEvent * mouseEvent );
+protected:
+ virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent);
+ virtual void mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent);
+ virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent);
+ virtual void customEvent(QEvent *event);
- private:
- //Buffer *_buffer;
- //QList<ChatLine*> _lines;
- MessageModel *_model;
- QList<ChatItem *> _items;
+protected slots:
+ void rowsInserted(const QModelIndex &, int, int);
+ void rowsAboutToBeRemoved(const QModelIndex &, int, int);
+private slots:
+ void handlePositionChanged(qreal xpos);
+ void showWebPreview();
+ void clearWebPreviewEvent(ClearWebPreviewEvent *event);
+
+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