/***************************************************************************
- * Copyright (C) 2005-08 by the Quassel Project *
+ * Copyright (C) 2005-2013 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 CHATITEM_H_
#define CHATITEM_H_
-#include <QGraphicsItem>
+#include <QAction>
#include <QObject>
-#include "chatline.h"
#include "chatlinemodel.h"
#include "chatscene.h"
+#include "clickable.h"
#include "uistyle.h"
+#include "qtui.h"
-class QTextLayout;
+#include <QTextLayout>
-class ChatItem : public QGraphicsItem {
+class ChatLine;
+class ChatView;
- public:
- ChatItem(const QPersistentModelIndex &index, QGraphicsItem *parent);
+/* All external positions are relative to the parent ChatLine */
+/* Yes, that's also true for the boundingRect() and related things */
+
+class ChatItem
+{
+protected:
+ // boundingRect is relative to the parent ChatLine
+ ChatItem(const QRectF &boundingRect, ChatLine *parent);
virtual ~ChatItem();
- inline QPersistentModelIndex index() const { return _index; }
- inline const MessageModel *model() const { return _index.isValid() ? qobject_cast<const MessageModel *>(_index.model()) : 0; }
- inline int row() const { return _index.isValid() ? _index.row() : 0; }
- inline ChatScene *chatScene() const { return qobject_cast<ChatScene *>(scene()); }
+public:
+ const QAbstractItemModel *model() const;
+ ChatLine *chatLine() const;
+ ChatScene *chatScene() const;
+ ChatView *chatView() const;
+ int row() const;
+ virtual ChatLineModel::ColumnType column() const = 0;
- inline QFontMetricsF *fontMetrics() const { return _fontMetrics; }
- inline virtual QRectF boundingRect() const { return _boundingRect; }
- inline qreal width() const { return _boundingRect.width(); }
- inline qreal height() const { return _boundingRect.height(); }
+ // The boundingRect() is relative to the parent ChatLine
+ inline QRectF boundingRect() const;
+ inline qreal width() const;
+ inline qreal height() const;
+ inline QPointF pos() const;
+ inline qreal x() const;
+ inline qreal y() const;
- inline bool haveLayout() const { return _layout != 0; }
- void clearLayout();
- void updateLayout();
- virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
+ QPointF mapToLine(const QPointF &) const;
+ QPointF mapFromLine(const QPointF &) const;
+ QPointF mapToScene(const QPointF &) const;
+ QPointF mapFromScene(const QPointF &) const;
- virtual QVariant data(int role) const;
+ virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
+ virtual inline int type() const { return ChatScene::ChatItemType; }
- // returns height
- qreal setWidth(qreal width);
+ QVariant data(int role) const;
// selection stuff, to be called by the scene
+ QString selection() const;
void clearSelection();
void setFullSelection();
void continueSelecting(const QPointF &pos);
+ bool hasSelection() const;
+ bool isPosOverSelection(const QPointF &pos) const;
+
+ QList<QRectF> findWords(const QString &searchWord, Qt::CaseSensitivity caseSensitive);
+
+ virtual void addActionsToMenu(QMenu *menu, const QPointF &itemPos);
+ virtual void handleClick(const QPointF &pos, ChatScene::ClickMode);
+
+ void initLayoutHelper(QTextLayout *layout, QTextOption::WrapMode, Qt::Alignment = Qt::AlignLeft) const;
+
+ //! Remove internally cached data
+ /** This removes e.g. the cached QTextLayout to avoid wasting space for nonvisible ChatLines
+ */
+ virtual void clearCache();
+
+protected:
+ enum SelectionMode {
+ NoSelection,
+ PartialSelection,
+ FullSelection
+ };
- protected:
virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
virtual void mousePressEvent(QGraphicsSceneMouseEvent *event);
virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
+ virtual void hoverEnterEvent(QGraphicsSceneHoverEvent *) {}
+ virtual void hoverLeaveEvent(QGraphicsSceneHoverEvent *) {}
+ virtual void hoverMoveEvent(QGraphicsSceneHoverEvent *) {}
- virtual void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
- virtual void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
- virtual void hoverMoveEvent(QGraphicsSceneHoverEvent *event);
+ QTextLayout *layout() const;
- private:
- qint16 posToCursor(const QPointF &pos);
- qreal computeHeight();
- QTextLayout *createLayout(QTextOption::WrapMode, Qt::Alignment = Qt::AlignLeft);
+ virtual void initLayout(QTextLayout *layout) const;
+ virtual void doLayout(QTextLayout *) const;
+ virtual UiStyle::FormatList formatList() const;
- // internal selection stuff
- void setSelection(int start, int length);
+ void paintBackground(QPainter *);
+ QVector<QTextLayout::FormatRange> selectionFormats() const;
+ virtual QVector<QTextLayout::FormatRange> additionalFormats() const;
+ void overlayFormat(UiStyle::FormatList &fmtList, int start, int end, quint32 overlayFmt) const;
- QRectF _boundingRect;
- QFontMetricsF *_fontMetrics;
- quint8 _lines;
- QPersistentModelIndex _index;
+ inline qint16 selectionStart() const { return _selectionStart; }
+ inline void setSelectionStart(qint16 start) { _selectionStart = start; }
+ inline qint16 selectionEnd() const { return _selectionEnd; }
+ inline void setSelectionEnd(qint16 end) { _selectionEnd = end; }
+ inline SelectionMode selectionMode() const { return _selectionMode; }
+ inline void setSelectionMode(SelectionMode mode) { _selectionMode = mode; }
+ void setSelection(SelectionMode mode, qint16 selectionStart, qint16 selectionEnd);
+
+ qint16 posToCursor(const QPointF &pos) const;
- QTextLayout * _layout;
- QList<quint16> _wrapPositions;
+ inline void setGeometry(qreal width, qreal height) { clearCache(); _boundingRect.setSize(QSizeF(width, height)); }
+ inline void setHeight(const qreal &height) { clearCache(); _boundingRect.setHeight(height); }
+ inline void setWidth(const qreal &width) { clearCache(); _boundingRect.setWidth(width); }
+ inline void setPos(const QPointF &pos) { _boundingRect.moveTopLeft(pos); }
+
+private:
+ ChatLine *_parent;
+ QRectF _boundingRect;
- enum SelectionMode { NoSelection, PartialSelection, FullSelection };
SelectionMode _selectionMode;
qint16 _selectionStart, _selectionEnd;
+ mutable QTextLayout *_cachedLayout;
+
+ // internal selection stuff
+ void setSelection(int start, int length);
+
+ friend class ChatLine;
+};
+
+
+// ************************************************************
+// TimestampChatItem
+// ************************************************************
+
+//! A ChatItem for the timestamp column
+class TimestampChatItem : public ChatItem
+{
+public:
+ TimestampChatItem(const QRectF &boundingRect, ChatLine *parent) : ChatItem(boundingRect, parent) {}
+ virtual inline int type() const { return ChatScene::TimestampChatItemType; }
+ virtual inline ChatLineModel::ColumnType column() const { return ChatLineModel::TimestampColumn; }
+};
+
+
+// ************************************************************
+// SenderChatItem
+// ************************************************************
+//! A ChatItem for the sender column
+class SenderChatItem : public ChatItem
+{
+public:
+ SenderChatItem(const QRectF &boundingRect, ChatLine *parent) : ChatItem(boundingRect, parent) {}
+ virtual inline ChatLineModel::ColumnType column() const { return ChatLineModel::SenderColumn; }
+ virtual void handleClick(const QPointF &pos, ChatScene::ClickMode clickMode);
+
+protected:
+ virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
+ virtual inline int type() const { return ChatScene::SenderChatItemType; }
+ virtual void initLayout(QTextLayout *layout) const;
+};
+
+
+// ************************************************************
+// ContentsChatItem
+// ************************************************************
+struct ContentsChatItemPrivate;
+
+//! A ChatItem for the contents column
+class ContentsChatItem : public ChatItem
+{
+ Q_DECLARE_TR_FUNCTIONS(ContentsChatItem)
+
+public:
+ ContentsChatItem(const QPointF &pos, const qreal &width, ChatLine *parent);
+ ~ContentsChatItem();
+
+ virtual inline int type() const { return ChatScene::ContentsChatItemType; }
+
+ inline ChatLineModel::ColumnType column() const { return ChatLineModel::ContentsColumn; }
+ QFontMetricsF *fontMetrics() const;
+
+ virtual void clearCache();
+
+protected:
+ virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
+ virtual void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
+ virtual void hoverMoveEvent(QGraphicsSceneHoverEvent *event);
+ virtual void handleClick(const QPointF &pos, ChatScene::ClickMode clickMode);
+
+ virtual void addActionsToMenu(QMenu *menu, const QPointF &itemPos);
+ virtual void copyLinkToClipboard();
+
+ virtual QVector<QTextLayout::FormatRange> additionalFormats() const;
+
+ virtual void initLayout(QTextLayout *layout) const;
+ virtual void doLayout(QTextLayout *layout) const;
+ virtual UiStyle::FormatList formatList() const;
+
+private:
+ class ActionProxy;
class WrapColumnFinder;
+
+ mutable ContentsChatItemPrivate *_data;
+ ContentsChatItemPrivate *privateData() const;
+
+ Clickable clickableAt(const QPointF &pos) const;
+
+ void endHoverMode();
+ void showWebPreview(const Clickable &click);
+ void clearWebPreview();
+
+ qreal setGeometryByWidth(qreal w);
+
+ QFontMetricsF *_fontMetrics;
+
+ // we need a receiver for Action signals
+ static ActionProxy _actionProxy;
+
+ friend class ChatLine;
+ friend struct ContentsChatItemPrivate;
+};
+
+
+struct ContentsChatItemPrivate {
+ ContentsChatItem *contentsItem;
+ ClickableList clickables;
+ Clickable currentClickable;
+ Clickable activeClickable;
+
+ ContentsChatItemPrivate(const ClickableList &c, ContentsChatItem *parent) : contentsItem(parent), clickables(c) {}
};
-class ChatItem::WrapColumnFinder {
- public:
- WrapColumnFinder(ChatItem *parent);
+class ContentsChatItem::WrapColumnFinder
+{
+public:
+ WrapColumnFinder(const ChatItem *parent);
~WrapColumnFinder();
- qint16 nextWrapColumn();
+ qint16 nextWrapColumn(qreal width);
- private:
- ChatItem *item;
- QTextLayout *layout;
+private:
+ const ChatItem *item;
+ QTextLayout layout;
QTextLine line;
ChatLineModel::WrapList wrapList;
qint16 wordidx;
- qint16 lastwrapcol;
- qreal lastwrappos;
- qreal w;
+ qint16 lineCount;
+ qreal choppedTrailing;
+};
+
+
+//! Acts as a proxy for Action signals targetted at a ContentsChatItem
+/** Since a ChatItem is not a QObject, hence cannot receive signals, we use a static ActionProxy
+ * as a receiver instead. This avoids having to handle ChatItem actions (e.g. context menu entries)
+ * outside the ChatItem.
+ */
+class ContentsChatItem::ActionProxy : public QObject
+{
+ Q_OBJECT
+
+public slots:
+ inline void copyLinkToClipboard() { item()->copyLinkToClipboard(); }
+
+private:
+ /// Returns the ContentsChatItem that should receive the action event.
+ /** For efficiency reasons, values are not checked for validity. You gotta make sure that you set the data() member
+ * in the Action correctly.
+ * @return The ChatItem from which the sending Action originated
+ */
+ inline ContentsChatItem *item() const
+ {
+ return static_cast<ContentsChatItem *>(qobject_cast<QAction *>(sender())->data().value<void *>());
+ }
};
+
+/*************************************************************************************************/
+
+// Inlines
+
+QRectF ChatItem::boundingRect() const { return _boundingRect; }
+qreal ChatItem::width() const { return _boundingRect.width(); }
+qreal ChatItem::height() const { return _boundingRect.height(); }
+QPointF ChatItem::pos() const { return _boundingRect.topLeft(); }
+qreal ChatItem::x() const { return pos().x(); }
+qreal ChatItem::y() const { return pos().y(); }
+
#endif
projects / quassel.git / blobdiff