/***************************************************************************
- * Copyright (C) 2005-08 by the Quassel Project *
+ * Copyright (C) 2005-2010 by the Quassel Project *
* devel@quassel-irc.org *
* *
* This program is free software; you can redistribute it and/or modify *
#ifndef CHATITEM_H_
#define CHATITEM_H_
-#include <QGraphicsItem>
+#include <QAction>
#include <QObject>
#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;
+/* All external positions are relative to the parent ChatLine */
+/* Yes, that's also true for the boundingRect() and related things */
+
+class ChatItem {
protected:
- ChatItem(ChatLineModel::ColumnType column, QAbstractItemModel *, QGraphicsItem *parent);
- virtual ~ChatItem();
+ // boundingRect is relative to the parent ChatLine
+ ChatItem(const QRectF &boundingRect, ChatLine *parent);
+ virtual ~ChatItem() {}
public:
- inline const QAbstractItemModel *model() const { return chatScene() ? chatScene()->model() : 0; }
+ inline const QAbstractItemModel *model() const;
+ inline ChatLine *chatLine() const;
+ inline ChatScene *chatScene() const;
inline int row() const;
virtual ChatLineModel::ColumnType column() const = 0;
- inline ChatScene *chatScene() const { return qobject_cast<ChatScene *>(scene()); }
- inline QFontMetricsF *fontMetrics() const { return _fontMetrics; }
- inline 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 QPointF mapToLine(const QPointF &) const;
+ inline QPointF mapFromLine(const QPointF &) const;
+ inline QPointF mapToScene(const QPointF &) const;
+ inline QPointF mapFromScene(const QPointF &) const;
+
+ void initLayoutHelper(QTextLayout *layout, QTextOption::WrapMode, Qt::Alignment = Qt::AlignLeft) const;
+ virtual inline void initLayout(QTextLayout *layout) const {
+ initLayoutHelper(layout, QTextOption::NoWrap);
+ doLayout(layout);
+ }
+ virtual void doLayout(QTextLayout *) const;
+ virtual UiStyle::FormatList formatList() const;
- inline bool haveLayout() const { return _layoutData != 0 && layout() != 0; }
- void clearLayoutData();
- virtual QTextLayout *createLayout(QTextOption::WrapMode, Qt::Alignment = Qt::AlignLeft);
- virtual void updateLayout();
virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
+ virtual inline int type() const { return ChatScene::ChatItemType; }
- virtual QVariant data(int role) const;
-
- // returns height
- qreal setGeometry(qreal width, qreal height = -1);
+ 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);
+
protected:
+ enum SelectionMode {
+ NoSelection,
+ PartialSelection,
+ FullSelection
+ };
+
virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
virtual void mousePressEvent(QGraphicsSceneMouseEvent *event);
virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
- virtual void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event);
-
- virtual void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
- virtual void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
- virtual void hoverMoveEvent(QGraphicsSceneHoverEvent *event);
-
- struct LayoutData;
- inline QTextLayout *layout() const;
- void setLayout(QTextLayout *);
- qint16 posToCursor(const QPointF &pos);
-
- virtual qreal computeHeight();
-
- QRectF _boundingRect;
+ virtual void hoverEnterEvent(QGraphicsSceneHoverEvent *) {};
+ virtual void hoverLeaveEvent(QGraphicsSceneHoverEvent *) {};
+ virtual void hoverMoveEvent(QGraphicsSceneHoverEvent *) {};
+
+ 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;
+
+ 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;
+
+ inline void setGeometry(qreal width, qreal height) { _boundingRect.setSize(QSizeF(width, height)); }
+ inline void setHeight(const qreal &height) { _boundingRect.setHeight(height); }
+ inline void setWidth(const qreal &width) { _boundingRect.setWidth(width); }
+ inline void setPos(const QPointF &pos) { _boundingRect.moveTopLeft(pos); }
private:
- // internal selection stuff
- void setSelection(int start, int length);
-
- QFontMetricsF *_fontMetrics;
+ ChatLine *_parent;
+ QRectF _boundingRect;
- enum SelectionMode { NoSelection, PartialSelection, FullSelection };
SelectionMode _selectionMode;
qint16 _selectionStart, _selectionEnd;
- LayoutData *_layoutData;
-};
-
-struct ChatItem::LayoutData {
- QTextLayout *layout;
+ // internal selection stuff
+ void setSelection(int start, int length);
- LayoutData() { layout = 0; }
- ~LayoutData() { delete layout; }
+ friend class ChatLine;
};
-class TimestampChatItem : public ChatItem {
+// ************************************************************
+// TimestampChatItem
+// ************************************************************
+//! A ChatItem for the timestamp column
+class TimestampChatItem : public ChatItem {
public:
- TimestampChatItem(QAbstractItemModel *model, QGraphicsItem *parent) : ChatItem(column(), model, parent) {}
- inline ChatLineModel::ColumnType column() const { return ChatLineModel::TimestampColumn; }
-
+ 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(QAbstractItemModel *model, QGraphicsItem *parent) : ChatItem(column(), model, parent) {}
- inline ChatLineModel::ColumnType column() const { return ChatLineModel::SenderColumn; }
+ 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);
- void updateLayout();
+protected:
+ virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
+ virtual inline int type() const { return ChatScene::SenderChatItemType; }
+ virtual inline void initLayout(QTextLayout *layout) const {
+ initLayoutHelper(layout, QTextOption::ManualWrap, Qt::AlignRight);
+ doLayout(layout);
+ }
};
+// ************************************************************
+// ContentsChatItem
+// ************************************************************
+struct ContentsChatItemPrivate;
+
+//! A ChatItem for the contents column
class ContentsChatItem : public ChatItem {
+ Q_DECLARE_TR_FUNCTIONS(ContentsChatItem)
public:
- ContentsChatItem(QAbstractItemModel *model, QGraphicsItem *parent) : ChatItem(column(), model, parent) {}
+ 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;
- void updateLayout();
+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);
-private:
- qreal computeHeight();
+ virtual void addActionsToMenu(QMenu *menu, const QPointF &itemPos);
+ virtual void copyLinkToClipboard();
+
+ virtual QVector<QTextLayout::FormatRange> additionalFormats() const;
+ virtual inline void initLayout(QTextLayout *layout) const {
+ initLayoutHelper(layout, QTextOption::WrapAtWordBoundaryOrAnywhere);
+ doLayout(layout);
+ }
+ virtual void doLayout(QTextLayout *layout) const;
+ virtual UiStyle::FormatList formatList() const;
+
+private:
+ class ActionProxy;
class WrapColumnFinder;
+
+ ContentsChatItemPrivate *_data;
+ ContentsChatItemPrivate *privateData() const;
+
+ Clickable clickableAt(const QPointF &pos) const;
+
+ void endHoverMode();
+ void showWebPreview(const Clickable &click);
+ void clearWebPreview();
+
+ qreal setGeometryByWidth(qreal w);
+ friend class ChatLine;
+ friend struct ContentsChatItemPrivate;
+
+ QFontMetricsF *_fontMetrics;
+
+ // we need a receiver for Action signals
+ static ActionProxy _actionProxy;
};
+struct ContentsChatItemPrivate {
+ ContentsChatItem *contentsItem;
+ ClickableList clickables;
+ Clickable currentClickable;
+ Clickable activeClickable;
+ ContentsChatItemPrivate(const ClickableList &c, ContentsChatItem *parent) : contentsItem(parent), clickables(c) {}
+};
class ContentsChatItem::WrapColumnFinder {
public:
- WrapColumnFinder(ChatItem *parent);
+ WrapColumnFinder(const ChatItem *parent);
~WrapColumnFinder();
- qint16 nextWrapColumn();
+ qint16 nextWrapColumn(qreal width);
private:
- ChatItem *item;
- QTextLayout *layout;
+ const ChatItem *item;
+ QTextLayout layout;
QTextLine line;
ChatLineModel::WrapList wrapList;
qint16 wordidx;
- qint16 lastwrapcol;
- qreal lastwrappos;
- qreal w;
+ qint16 lineCount;
+ qreal choppedTrailing;
};
-#include "chatline.h"
-inline int ChatItem::row() const { return static_cast<ChatLine *>(parentItem())->row(); }
-inline QTextLayout *ChatItem::layout() const { return _layoutData->layout; }
+//! 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 *>());
+ }
+};
+
+/*************************************************************************************************/
+
+#include "chatline.h" /* avoid circular includes */
+
+// Inlines
+
+ChatLine *ChatItem::chatLine() const { return _parent; }
+ChatScene *ChatItem::chatScene() const { return chatLine()->chatScene(); }
+const QAbstractItemModel *ChatItem::model() const { return chatLine()->model(); }
+int ChatItem::row() const { return chatLine()->row(); }
+
+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(); }
+
+QPointF ChatItem::mapToLine(const QPointF &p) const { return p + pos(); }
+QPointF ChatItem::mapFromLine(const QPointF &p) const { return p - pos(); }
+// relative to the ChatLine
+QPointF ChatItem::mapToScene(const QPointF &p) const { return chatLine()->mapToScene(p /* + pos() */); }
+QPointF ChatItem::mapFromScene(const QPointF &p) const { return chatLine()->mapFromScene(p) /* - pos() */; }
#endif
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