/***************************************************************************
- * Copyright (C) 2005-08 by the Quassel Project *
+ * Copyright (C) 2005-2016 by the Quassel Project *
* devel@quassel-irc.org *
* *
* This program is free software; you can redistribute it and/or modify *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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 <QUrl>
-#include "types.h"
+#include "chatlinemodel.h"
+#include "messagefilter.h"
class AbstractUiMsg;
class ChatItem;
class ChatLine;
+class ChatView;
class ColumnHandleItem;
+class MarkerLineItem;
+class WebPreviewItem;
class QGraphicsSceneMouseEvent;
-class ChatScene : public QGraphicsScene {
- Q_OBJECT
+class ChatScene : public QGraphicsScene
+{
+ Q_OBJECT
- public:
- ChatScene(QAbstractItemModel *model, const QString &idString, QObject *parent);
+public:
+ enum CutoffMode {
+ CutoffLeft,
+ CutoffRight
+ };
+
+ enum ItemType {
+ ChatLineType = QGraphicsItem::UserType + 1,
+ ChatItemType,
+ TimestampChatItemType,
+ SenderChatItemType,
+ ContentsChatItemType,
+ SearchHighlightType,
+ WebPreviewType,
+ ColumnHandleType,
+ MarkerLineType
+ };
+
+ 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; }
- inline bool isFetchingBacklog() const;
- inline bool isBacklogFetchingEnabled() const;
- inline BufferId bufferForBacklogFetching() const;
- int sectionByScenePos(int x);
- inline int sectionByScenePos(const QPoint &pos) { return sectionByScenePos(pos.x()); }
- inline bool isSingleBufferScene() const { return _singleBufferScene; }
+ 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) const { return (row < _lines.count()) ? _lines.value(row) : 0; }
+ inline ChatLine *chatLine(const QModelIndex &index) const { return _lines.value(index.row()); }
+
+ //! Find the ChatLine belonging to a MsgId
+ /** Searches for the ChatLine belonging to a MsgId. If there are more than one ChatLine with the same msgId,
+ * the first one is returned.
+ * Note that this method performs a binary search, hence it has as complexity of O(log n).
+ * If matchExact is false, and we don't have an exact match for the given msgId, we return the visible line right
+ * above the requested one.
+ * \param msgId The message ID to look for
+ * \param matchExact Whether we find only exact matches
+ * \param ignoreDayChange Whether we ignore day change messages
+ * \return The ChatLine corresponding to the given MsgId
+ */
+ ChatLine *chatLine(MsgId msgId, bool matchExact = true, bool ignoreDayChange = true) const;
+
+ inline ChatLine *lastLine() const { return _lines.count() ? _lines.last() : 0; }
+
+ inline MarkerLineItem *markerLine() const { return _markerLine; }
+
+ inline bool isSingleBufferScene() const { return _singleBufferId.isValid(); }
+ inline BufferId singleBufferId() const { return _singleBufferId; }
+ bool containsBuffer(const BufferId &id) const;
- public slots:
- void setWidth(qreal);
+ 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;
+
+public slots:
+ void updateForViewport(qreal width, qreal height);
+ void setWidth(qreal width);
+ void layout(int start, int end, qreal width);
+
+ void resetColumnWidths();
+
+ void setMarkerLineVisible(bool visible = true);
+ void setMarkerLine(MsgId msgId = MsgId());
+ void jumpToMarkerLine(bool requestBacklog);
// 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 setIsFetchingBacklog(bool);
- inline void setBufferForBacklogFetching(BufferId buffer);
+ void webSearchOnSelection();
- signals:
- void heightChanged(qreal height);
+ void requestBacklog();
- protected:
+#if defined HAVE_WEBKIT || defined HAVE_WEBENGINE
+ void loadWebPreview(ChatItem *parentItem, const QUrl &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:
+protected slots:
void rowsInserted(const QModelIndex &, int, int);
- void modelReset();
+ void rowsAboutToBeRemoved(const QModelIndex &, int, int);
+ void dataChanged(const QModelIndex &, const QModelIndex &);
+
+private slots:
+ void firstHandlePositionChanged(qreal xpos);
+ void secondHandlePositionChanged(qreal xpos);
+#if defined HAVE_WEBKIT || defined HAVE_WEBENGINE
+ void webPreviewNextStep();
+#endif
+ void showWebPreviewChanged();
+
+ /**
+ * Updates the local setting cache of whether or not to show sender brackets
+ */
+ void showSenderBracketsChanged();
+
+ /**
+ * Updates the local setting cache of the timestamp format string
+ */
+ void timestampFormatStringChanged();
+
+ /**
+ * Updates the status of whether or not the timestamp format string contains brackets
+ *
+ * When the timestamp contains brackets -and- showSenderBrackets is disabled, we need to
+ * automatically add brackets. This function checks if the timestamp has brackets and stores
+ * the result, rather than checking each time text is copied.
+ */
+ void updateTimestampHasBrackets();
- private slots:
- void rectChanged(const QRectF &);
- void handlePositionChanged(qreal xpos);
+ void rowsRemoved();
- private:
+ void clickTimeout();
+
+private:
+ void setHandleXLimits();
void updateSelection(const QPointF &pos);
- QString selectionToString() const;
- void requestBacklogIfNeeded();
+ ChatView *_chatView;
QString _idString;
- qreal _width, _height;
QAbstractItemModel *_model;
QList<ChatLine *> _lines;
- bool _singleBufferScene;
+ BufferId _singleBufferId;
+
+ // 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;
- ColumnHandleItem *firstColHandle, *secondColHandle;
- qreal firstColHandlePos, secondColHandlePos;
+ MarkerLineItem *_markerLine;
+ bool _markerLineVisible, _markerLineValid, _markerLineJumpPending;
+
+ ColumnHandleItem *_firstColHandle, *_secondColHandle;
+ qreal _firstColHandlePos, _secondColHandlePos;
+ int _defaultFirstColHandlePos, _defaultSecondColHandlePos;
+ CutoffMode _cutoffMode;
ChatItem *_selectingItem;
int _selectionStartCol, _selectionMinCol;
int _selectionStart;
int _selectionEnd;
- int _firstSelectionRow, _lastSelectionRow;
+ int _firstSelectionRow;
bool _isSelecting;
- bool _fetchingBacklog;
- BufferId _backlogFetchingBuffer;
- MsgId _lastBacklogOffset;
- int _lastBacklogSize;
-};
+ QTimer _clickTimer;
+ ClickMode _clickMode;
+ QPointF _clickPos;
+ bool _clickHandled;
+ bool _leftButtonPressed;
-bool ChatScene::isFetchingBacklog() const {
- return _fetchingBacklog;
-}
+ bool _showWebPreview;
-bool ChatScene::isBacklogFetchingEnabled() const {
- return _backlogFetchingBuffer.isValid();
-}
+ bool _showSenderBrackets; /// If true, show brackets around sender names
-BufferId ChatScene::bufferForBacklogFetching() const {
- return _backlogFetchingBuffer;
-}
+ QString _timestampFormatString; /// Format of the timestamp string
+ bool _timestampHasBrackets; /// If true, timestamp format has [brackets] of some sort
+
+ static const int _webSearchSelectionTextMaxVisible = 24;
+
+#if defined HAVE_WEBKIT || defined HAVE_WEBENGINE
+ struct WebPreview {
+ enum PreviewState {
+ NoPreview,
+ NewPreview,
+ DelayPreview,
+ ShowPreview,
+ HidePreview
+ };
+ ChatItem *parentItem;
+ QGraphicsItem *previewItem;
+ QUrl url;
+ QRectF urlRect;
+ PreviewState previewState;
+ QTimer timer;
+ WebPreview() : parentItem(0), previewItem(0), previewState(NoPreview) {}
+ };
+ WebPreview webPreview;
+#endif // HAVE_WEBKIT || HAVE_WEBENGINE
+};
-void ChatScene::setBufferForBacklogFetching(BufferId buf) {
- _backlogFetchingBuffer = buf;
-}
#endif
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