/***************************************************************************
- * Copyright (C) 2005-08 by the Quassel Project *
+ * Copyright (C) 2005-09 by the Quassel Project *
* devel@quassel-irc.org *
* *
* This program is free software; you can redistribute it and/or modify *
* 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 <QClipboard>
+#include <QGraphicsItem>
#include <QGraphicsScene>
+#include <QSet>
+#include <QTimer>
+
+#include "chatlinemodel.h"
+#include "messagefilter.h"
class AbstractUiMsg;
-class Buffer;
class ChatItem;
class ChatLine;
+class ChatView;
+class ColumnHandleItem;
+class WebPreviewItem;
+
class QGraphicsSceneMouseEvent;
class ChatScene : public QGraphicsScene {
Q_OBJECT
- public:
- ChatScene(QAbstractItemModel *model, QObject *parent);
- virtual ~ChatScene();
+public:
+ enum CutoffMode {
+ CutoffLeft,
+ CutoffRight
+ };
+
+ enum ItemType {
+ ChatLineType = QGraphicsItem::UserType + 1,
+ ChatItemType,
+ TimestampChatItemType,
+ SenderChatItemType,
+ ContentsChatItemType,
+ SearchHighlightType,
+ WebPreviewType,
+ ColumnHandleType
+ };
+
+ enum ClickMode {
+ NoClick,
+ DragStartClick,
+ SingleClick,
+ DoubleClick,
+ TripleClick
+ };
+
+ ChatScene(QAbstractItemModel *model, const QString &idString, qreal width, ChatView *parent);
+ virtual ~ChatScene();
+
+ inline QAbstractItemModel *model() const { return _model; }
+ inline MessageFilter *filter() const { return qobject_cast<MessageFilter*>(_model); }
+ inline QString idString() const { return _idString; }
+
+ int rowByScenePos(qreal y) const;
+ inline int rowByScenePos(const QPointF &pos) const { return rowByScenePos(pos.y()); }
+ ChatLineModel::ColumnType columnByScenePos(qreal x) const ;
+ inline ChatLineModel::ColumnType columnByScenePos(const QPointF &pos) const { return columnByScenePos(pos.x()); }
+
+ ChatView *chatView() const;
+ ChatItem *chatItemAt(const QPointF &pos) const;
+ inline ChatLine *chatLine(int row) { return (row < _lines.count()) ? _lines[row] : 0; }
+
+ inline bool isSingleBufferScene() const { return _singleBufferId.isValid(); }
+ inline BufferId singleBufferId() const { return _singleBufferId; }
+ bool containsBuffer(const BufferId &id) const;
+
+ ColumnHandleItem *firstColumnHandle() const;
+ ColumnHandleItem *secondColumnHandle() const;
+
+ inline CutoffMode senderCutoffMode() const { return _cutoffMode; }
+ inline void setSenderCutoffMode(CutoffMode mode) { _cutoffMode = mode; }
+
+ QString selection() const;
+ bool hasSelection() const;
+ bool hasGlobalSelection() const;
+ bool isPosOverSelection(const QPointF &) const;
+ bool isGloballySelecting() const;
+ void initiateDrag(QWidget *source);
+
+ bool isScrollingAllowed() const;
+
+ virtual bool event(QEvent *e);
+
+ public slots:
+ void updateForViewport(qreal width, qreal height);
+ void setWidth(qreal width);
+
+ // 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 clearGlobalSelection();
+ void clearSelection();
+ void selectionToClipboard(QClipboard::Mode = QClipboard::Clipboard);
+ void stringToClipboard(const QString &str, QClipboard::Mode = QClipboard::Clipboard);
+
+ void requestBacklog();
+
+#ifdef HAVE_WEBKIT
+ void loadWebPreview(ChatItem *parentItem, const QString &url, const QRectF &urlRect);
+ void clearWebPreview(ChatItem *parentItem = 0);
+#endif
+
+signals:
+ void lastLineChanged(QGraphicsItem *item, qreal offset);
+ void layoutChanged(); // indicates changes to the scenerect due to resizing of the contentsitems
+ void mouseMoveWhileSelecting(const QPointF &scenePos);
+
+protected:
+ virtual void contextMenuEvent(QGraphicsSceneContextMenuEvent *contextMenuEvent);
+ virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent);
+ virtual void mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent);
+ virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent);
+ virtual void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *mouseEvent);
+ virtual void handleClick(Qt::MouseButton button, const QPointF &scenePos);
+
+protected slots:
+ void rowsInserted(const QModelIndex &, int, int);
+ void rowsAboutToBeRemoved(const QModelIndex &, int, int);
+
+private slots:
+ void firstHandlePositionChanged(qreal xpos);
+ void secondHandlePositionChanged(qreal xpos);
+#ifdef HAVE_WEBKIT
+ void webPreviewNextStep();
+#endif
+ void showWebPreviewChanged();
+
+ void clickTimeout();
+
+private:
+ void setHandleXLimits();
+ void updateSelection(const QPointF &pos);
+
+ ChatView *_chatView;
+ QString _idString;
+ QAbstractItemModel *_model;
+ QList<ChatLine *> _lines;
+ BufferId _singleBufferId;
- Buffer *buffer() const;
- inline QAbstractItemModel *model() const { return _model; }
+ // 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(qreal width);
+ inline void updateSceneRect() { updateSceneRect(_sceneRect.width()); }
+ void updateSceneRect(const QRectF &rect);
+ qreal _viewportHeight;
- public slots:
- void setWidth(int);
+ ColumnHandleItem *_firstColHandle, *_secondColHandle;
+ qreal _firstColHandlePos, _secondColHandlePos;
+ CutoffMode _cutoffMode;
- signals:
- void heightChanged(int height);
+ ChatItem *_selectingItem;
+ int _selectionStartCol, _selectionMinCol;
+ int _selectionStart;
+ int _selectionEnd;
+ int _firstSelectionRow;
+ bool _isSelecting;
- protected slots:
- void rowsInserted(const QModelIndex &, int, int);
- void mousePressEvent ( QGraphicsSceneMouseEvent * mouseEvent );
+ QTimer _clickTimer;
+ ClickMode _clickMode;
+ QPointF _clickPos;
+ bool _clickHandled;
+ bool _leftButtonPressed;
- private:
- int _width, _height;
- int _timestampWidth, _senderWidth;
- QAbstractItemModel *_model;
- QList<ChatLine *> _lines;
+ bool _showWebPreview;
+#ifdef HAVE_WEBKIT
+ struct WebPreview {
+ enum PreviewState {
+ NoPreview,
+ NewPreview,
+ DelayPreview,
+ ShowPreview,
+ HidePreview
+ };
+ ChatItem *parentItem;
+ QGraphicsItem *previewItem;
+ QString url;
+ QRectF urlRect;
+ PreviewState previewState;
+ QTimer timer;
+ WebPreview() : parentItem(0), previewItem(0), previewState(NoPreview) {}
+ };
+ WebPreview webPreview;
+#endif // HAVE_WEBKIT
};
#endif
projects / quassel.git / blobdiff