* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
-#ifndef _CHATITEM_H_
-#define _CHATITEM_H_
+#ifndef CHATITEM_H_
+#define CHATITEM_H_
#include <QGraphicsItem>
-#include <QTextLayout>
-#include <QTextOption>
+#include <QObject>
+#include "chatline.h"
+#include "chatlinemodel.h"
+#include "chatscene.h"
#include "uistyle.h"
-class QGraphicsSceneMouseEvent;
+class QTextLayout;
class ChatItem : public QGraphicsItem {
public:
- ChatItem(QGraphicsItem *parent = 0);
+ ChatItem(const QPersistentModelIndex &index, QGraphicsItem *parent);
virtual ~ChatItem();
- virtual QRectF boundingRect() const;
+ 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()); }
+
+ 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(); }
+
+ inline bool haveLayout() const { return _layout != 0; }
+ void clearLayout();
+ void updateLayout();
virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
- QString text() const;
- void setText(const UiStyle::StyledText &text);
+ virtual QVariant data(int role) const;
- QTextOption textOption() const;
- void setTextOption(const QTextOption &option);
+ // returns height
+ qreal setWidth(qreal width);
- void setWidth(int width);
- virtual void layout();
+ // selection stuff, to be called by the scene
+ void clearSelection();
+ void setFullSelection();
+ void continueSelecting(const QPointF &pos);
protected:
- //void mouseMoveEvent ( QGraphicsSceneMouseEvent * event );
+ virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
+ virtual void mousePressEvent(QGraphicsSceneMouseEvent *event);
+ virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
+
+ virtual void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
+ virtual void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
+ virtual void hoverMoveEvent(QGraphicsSceneHoverEvent *event);
+
+ private:
+ qint16 posToCursor(const QPointF &pos);
+ qreal computeHeight();
+ QTextLayout *createLayout(QTextOption::WrapMode, Qt::Alignment = Qt::AlignLeft);
+
+ // internal selection stuff
+ void setSelection(int start, int length);
+
+ QRectF _boundingRect;
+ QFontMetricsF *_fontMetrics;
+ quint8 _lines;
+ QPersistentModelIndex _index;
+
+ QTextLayout * _layout;
+ QList<quint16> _wrapPositions;
+
+ enum SelectionMode { NoSelection, PartialSelection, FullSelection };
+ SelectionMode _selectionMode;
+ qint16 _selectionStart, _selectionEnd;
+
+ class WrapColumnFinder;
+};
+
+class ChatItem::WrapColumnFinder {
+ public:
+ WrapColumnFinder(ChatItem *parent);
+ ~WrapColumnFinder();
+
+ qint16 nextWrapColumn();
private:
- int _width;
- QTextLayout _layout;
- QTextOption _textOption;
+ ChatItem *item;
+ QTextLayout *layout;
+ QTextLine line;
+ ChatLineModel::WrapList wrapList;
+ qint16 wordidx;
+ qint16 lastwrapcol;
+ qreal lastwrappos;
+ qreal w;
};
#endif