forked from osmocom/wireshark
73 lines
1.7 KiB
C++
73 lines
1.7 KiB
C++
/* timeline_delegate.h
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef TIMELINE_DELEGATE_H
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#define TIMELINE_DELEGATE_H
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/*
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* @file Timeline delegate.
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*
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* QStyledItemDelegate subclass that will draw a timeline indicator for
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* the specified value.
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*
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* This is intended to be used in QTreeWidgets to show timelines, e.g. for
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* conversations.
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* To use it, first call setItemDelegate:
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*
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* myTreeWidget()->setItemDelegateForColumn(col_time_start_, new TimelineDelegate());
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*
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* Then, for each QTreeWidgetItem, set or return a timeline_span for the start and end
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* of the timeline in pixels relative to the column width.
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*
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* setData(col_start_, Qt::UserRole, start_span);
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* setData(col_end_, Qt::UserRole, end_span);
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*
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*/
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#include <QStyledItemDelegate>
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// Pixels are relative to item rect and will be clipped.
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struct timeline_span {
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int start;
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int width;
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};
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Q_DECLARE_METATYPE(timeline_span)
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class TimelineDelegate : public QStyledItemDelegate
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{
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Q_OBJECT
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public:
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TimelineDelegate(QWidget *parent = 0);
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// Make sure QStyledItemDelegate::paint doesn't draw any text.
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virtual QString displayText(const QVariant &, const QLocale &) const { return QString(); }
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protected:
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void paint(QPainter *painter, const QStyleOptionViewItem &option,
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const QModelIndex &index) const;
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private:
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};
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#endif // TIMELINE_DELEGATE_H
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/*
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* Editor modelines
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*
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* Local Variables:
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* c-basic-offset: 4
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* ex: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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