/***************************************************************************
- * Copyright (C) 2005-08 by the Quassel Project *
+ * Copyright (C) 2005-2018 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_
+#ifndef CHATITEM_H_
+#define CHATITEM_H_
-#include <QGraphicsItem>
+#include <utility>
+
+#include <QAction>
+#include <QObject>
#include <QTextLayout>
-#include <QTextOption>
-#include "chatline.h"
#include "chatlinemodel.h"
+#include "chatscene.h"
+#include "clickable.h"
+#include "qtui.h"
#include "uistyle.h"
-class ChatItem : public QGraphicsItem {
+class ChatLine;
+class ChatView;
+
+/* All external positions are relative to the parent ChatLine */
+/* Yes, that's also true for the boundingRect() and related things */
- public:
- ChatItem(const QPersistentModelIndex &index, QGraphicsItem *parent);
+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; }
+public:
+ const QAbstractItemModel* model() const;
+ ChatLine* chatLine() const;
+ ChatScene* chatScene() const;
+ ChatView* chatView() const;
+ int row() const;
+ virtual ChatLineModel::ColumnType column() const = 0;
+
+ // 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;
+
+ QPointF mapToLine(const QPointF&) const;
+ QPointF mapFromLine(const QPointF&) const;
+ QPointF mapToScene(const QPointF&) const;
+ QPointF mapFromScene(const QPointF&) const;
+
+ virtual void paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget = nullptr);
+ virtual inline int type() const { return ChatScene::ChatItemType; }
+
+ 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
+ };
+
+ 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*) {}
+
+ QTextLayout* layout() const;
+
+ virtual void initLayout(QTextLayout* layout) const;
+ virtual void doLayout(QTextLayout*) const;
+ virtual UiStyle::FormatList formatList() const;
- inline virtual QRectF boundingRect() const { return _boundingRect; }
- virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
+ void paintBackground(QPainter*);
+ virtual QVector<QTextLayout::FormatRange> additionalFormats() const;
+ void overlayFormat(UiStyle::FormatList& fmtList, quint16 start, quint16 end, UiStyle::FormatType overlayFmt) const;
- virtual QVariant data(int role) const;
- //QString text() const;
- //void setText(const UiStyle::StyledText &text);
+ 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);
- //QTextOption textOption() const;
- //void setTextOption(const QTextOption &option);
+ virtual bool hasActiveClickable() const;
+ virtual std::pair<quint16, quint16> activeClickableRange() const;
- // returns height
- int setWidth(int width);
- //virtual void layout();
+ qint16 posToCursor(const QPointF& pos) const;
- protected:
- //void mouseMoveEvent ( QGraphicsSceneMouseEvent * event );
+ 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:
+private:
+ ChatLine* _parent;
QRectF _boundingRect;
- //QTextLayout _layout;
- //QTextOption _textOption;
- QPersistentModelIndex _index;
+
+ 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)
+ {}
+ inline int type() const override { return ChatScene::TimestampChatItemType; }
+ inline ChatLineModel::ColumnType column() const override { return ChatLineModel::TimestampColumn; }
+};
+
+// ************************************************************
+// SenderChatItem
+// ************************************************************
+//! A ChatItem for the sender column
+class SenderChatItem : public ChatItem
+{
+public:
+ SenderChatItem(const QRectF& boundingRect, ChatLine* parent)
+ : ChatItem(boundingRect, parent)
+ {}
+ inline ChatLineModel::ColumnType column() const override { return ChatLineModel::SenderColumn; }
+ void handleClick(const QPointF& pos, ChatScene::ClickMode clickMode) override;
+
+protected:
+ void paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget = nullptr) override;
+ inline int type() const override { return ChatScene::SenderChatItemType; }
+ void initLayout(QTextLayout* layout) const override;
+};
+
+// ************************************************************
+// 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() override;
+
+ inline int type() const override { return ChatScene::ContentsChatItemType; }
+
+ inline ChatLineModel::ColumnType column() const override { return ChatLineModel::ContentsColumn; }
+ QFontMetricsF* fontMetrics() const;
+
+ void clearCache() override;
+
+protected:
+ void mouseMoveEvent(QGraphicsSceneMouseEvent* event) override;
+ void hoverLeaveEvent(QGraphicsSceneHoverEvent* event) override;
+ void hoverMoveEvent(QGraphicsSceneHoverEvent* event) override;
+ void handleClick(const QPointF& pos, ChatScene::ClickMode clickMode) override;
+
+ bool hasActiveClickable() const override;
+ std::pair<quint16, quint16> activeClickableRange() const override;
+
+ void addActionsToMenu(QMenu* menu, const QPointF& itemPos) override;
+ virtual void copyLinkToClipboard();
+
+ void initLayout(QTextLayout* layout) const override;
+ void doLayout(QTextLayout* layout) const override;
+ UiStyle::FormatList formatList() const override;
+
+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(ClickableList c, ContentsChatItem* parent)
+ : contentsItem(parent)
+ , clickables(std::move(c))
+ {}
+};
+
+class ContentsChatItem::WrapColumnFinder
+{
+public:
+ WrapColumnFinder(const ChatItem* parent);
+
+ qint16 nextWrapColumn(qreal width);
+
+private:
+ const ChatItem* item;
+ QTextLayout layout;
+ QTextLine line;
+ ChatLineModel::WrapList wrapList;
+ qint16 wordidx;
+ 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