/***************************************************************************
- * Copyright (C) 2005-08 by the Quassel Project *
+ * Copyright (C) 2005-09 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 <QAction>
#include <QGraphicsItem>
#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 {
+protected:
+ ChatItem(const qreal &width, const qreal &height, const QPointF &pos, QGraphicsItem *parent);
- public:
- ChatItem(int col, QAbstractItemModel *, QGraphicsItem *parent);
- virtual ~ChatItem();
-
- inline const QAbstractItemModel *model() const { return chatScene() ? chatScene()->model() : 0; }
- int row() const;
- inline int column() const { return _col; }
+public:
+ inline const QAbstractItemModel *model() 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 virtual QRectF boundingRect() const { return _boundingRect; }
- inline qreal width() const { return _boundingRect.width(); }
- inline qreal height() const { return _boundingRect.height(); }
+ inline QRectF boundingRect() const { return _boundingRect; }
+ inline qreal width() const { return _boundingRect.width(); }
+ inline qreal height() const { return _boundingRect.height(); }
+
+ 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;
+
+ virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
+ enum { Type = ChatScene::ChatItemType };
+ virtual inline int type() const { return Type; }
+
+ 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;
- inline bool haveLayout() const { return _layout != 0; }
- void clearLayout();
- void updateLayout();
- virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
+ QList<QRectF> findWords(const QString &searchWord, Qt::CaseSensitivity caseSensitive);
- virtual QVariant data(int role) const;
+ virtual void addActionsToMenu(QMenu *menu, const QPointF &itemPos);
+ virtual void handleClick(const QPointF &pos, ChatScene::ClickMode);
- // returns height
- qreal setGeometry(qreal width, qreal height = -1);
+protected:
+ enum SelectionMode {
+ NoSelection,
+ PartialSelection,
+ FullSelection
+ };
- // selection stuff, to be called by the scene
- void clearSelection();
- void setFullSelection();
- void continueSelecting(const QPointF &pos);
+ virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
+ virtual void mousePressEvent(QGraphicsSceneMouseEvent *event);
+ virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
- protected:
- virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
- virtual void mousePressEvent(QGraphicsSceneMouseEvent *event);
- virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
- virtual void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event);
+ 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;
- virtual void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
- virtual void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
- virtual void hoverMoveEvent(QGraphicsSceneHoverEvent *event);
+ 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);
- private:
- qint16 posToCursor(const QPointF &pos);
- qreal computeHeight();
- QTextLayout *createLayout(QTextOption::WrapMode, Qt::Alignment = Qt::AlignLeft);
+ qint16 posToCursor(const QPointF &pos) const;
- // internal selection stuff
- void setSelection(int start, int length);
+ // WARNING: setGeometry and setHeight should not be used without either:
+ // a) calling prepareGeometryChange() immediately before setColumns()
+ // b) calling Chatline::setPos() immediately afterwards
+ inline void setGeometry(qreal width, qreal height) {
+ _boundingRect.setWidth(width);
+ _boundingRect.setHeight(height);
+ }
+ inline void setHeight(const qreal &height) {
+ _boundingRect.setHeight(height);
+ }
+ inline void setWidth(const qreal &width) {
+ _boundingRect.setWidth(width);
+ }
- QRectF _boundingRect;
- QFontMetricsF *_fontMetrics;
- int _col;
- quint8 _lines;
+private:
+ // internal selection stuff
+ void setSelection(int start, int length);
- QTextLayout * _layout;
- QList<quint16> _wrapPositions;
+ QRectF _boundingRect;
- enum SelectionMode { NoSelection, PartialSelection, FullSelection };
- SelectionMode _selectionMode;
- qint16 _selectionStart, _selectionEnd;
+ SelectionMode _selectionMode;
+ qint16 _selectionStart, _selectionEnd;
- class WrapColumnFinder;
+ friend class ChatLine;
};
-class ChatItem::WrapColumnFinder {
- public:
- WrapColumnFinder(ChatItem *parent);
- ~WrapColumnFinder();
-
- qint16 nextWrapColumn();
-
- private:
- ChatItem *item;
- QTextLayout *layout;
- QTextLine line;
- ChatLineModel::WrapList wrapList;
- qint16 wordidx;
- qint16 lastwrapcol;
- qreal lastwrappos;
- qreal w;
+// ************************************************************
+// TimestampChatItem
+// ************************************************************
+
+//! A ChatItem for the timestamp column
+class TimestampChatItem : public ChatItem {
+public:
+ TimestampChatItem(const qreal &width, const qreal &height, QGraphicsItem *parent) : ChatItem(width, height, QPointF(0, 0), parent) {}
+ enum { Type = ChatScene::TimestampChatItemType };
+ virtual inline int type() const { return Type; }
+ virtual inline ChatLineModel::ColumnType column() const { return ChatLineModel::TimestampColumn; }
};
-#include "chatline.h"
-inline int ChatItem::row() const { return static_cast<ChatLine *>(parentItem())->row(); }
+// ************************************************************
+// SenderChatItem
+// ************************************************************
+//! A ChatItem for the sender column
+class SenderChatItem : public ChatItem {
+public:
+ SenderChatItem(const qreal &width, const qreal &height, const QPointF &pos, QGraphicsItem *parent) : ChatItem(width, height, pos, parent) {}
+ virtual inline ChatLineModel::ColumnType column() const { return ChatLineModel::SenderColumn; }
+
+protected:
+ virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
+ enum { Type = ChatScene::SenderChatItemType };
+ virtual inline int type() const { return Type; }
+ 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(const qreal &width, const QPointF &pos, QGraphicsItem *parent);
+ ~ContentsChatItem();
+
+ enum { Type = ChatScene::ContentsChatItemType };
+ virtual inline int type() const { return Type; }
+
+ inline ChatLineModel::ColumnType column() const { return ChatLineModel::ContentsColumn; }
+ QFontMetricsF *fontMetrics() const;
+
+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 inline void initLayout(QTextLayout *layout) const {
+ initLayoutHelper(layout, QTextOption::WrapAnywhere);
+ 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(const ChatItem *parent);
+ ~WrapColumnFinder();
+
+ 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 *>());
+ }
+};
+
+/*************************************************************************************************/
+
+// Avoid circular include deps
+#include "chatline.h"
+const QAbstractItemModel *ChatItem::model() const { return static_cast<ChatLine *>(parentItem())->model(); }
+int ChatItem::row() const { return static_cast<ChatLine *>(parentItem())->row(); }
#endif
projects / quassel.git / blobdiff