4c45973d75
svn path=/trunk/; revision=50867
140 lines
4.8 KiB
C++
140 lines
4.8 KiB
C++
/* related_packet_delegate.cpp
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*
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* $Id$
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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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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "related_packet_delegate.h"
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#include "packet_list_record.h"
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#include <QPainter>
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#include <QApplication>
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void RelatedPacketDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option,
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const QModelIndex &index) const
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{
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int en_w = option.fontMetrics.height() / 2;
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QStyleOptionViewItemV4 optv4 = option;
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QStyledItemDelegate::initStyleOption(&optv4, index);
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optv4.features |= QStyleOptionViewItemV4::HasDecoration;
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optv4.decorationSize.setHeight(1);
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optv4.decorationSize.setWidth(en_w);
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QStyledItemDelegate::paint(painter, optv4, index);
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frame_data *fd;
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PacketListRecord *record = static_cast<PacketListRecord*>(index.internalPointer());
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if (!record || (fd = record->getFdata()) == NULL) {
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return;
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}
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painter->save();
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if (QApplication::style()->objectName().contains("vista")) {
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// QWindowsVistaStyle::drawControl does this internally. Unfortunately there
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// doesn't appear to be a more general way to do this.
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optv4.palette.setColor(QPalette::All, QPalette::HighlightedText, optv4.palette.color(QPalette::Active, QPalette::Text));
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}
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QPalette::ColorGroup cg = optv4.state & QStyle::State_Enabled
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? QPalette::Normal : QPalette::Disabled;
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QColor fg;
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if (cg == QPalette::Normal && !(optv4.state & QStyle::State_Active))
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cg = QPalette::Inactive;
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if (optv4.state & QStyle::State_Selected) {
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fg = optv4.palette.color(cg, QPalette::HighlightedText);
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} else {
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fg = optv4.palette.color(cg, QPalette::Text);
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}
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qreal alpha = 0.20; // Arbitrary. Should arguably be a preference.
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// We draw in the same place more than once so we first draw on a
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// QImage at 100% opacity then draw that on our packet list item.
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QImage overlay = QImage(en_w * 2, optv4.rect.height(), QImage::Format_ARGB32_Premultiplied);
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QPainter op(&overlay);
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overlay.fill(Qt::transparent);
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op.setPen(fg);
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op.translate(en_w + 0.5, 0.5);
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op.setRenderHint(QPainter::Antialiasing, true);
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// The current decorations are based on what looked good and were easy
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// to code. W might want to improve them by drawing small dots or tick
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// marks for frames in the same conversation XOR draw a gap for unrelated
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// frames.
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if (first_frame_ > 0 && last_frame_ > 0 && first_frame_ != last_frame_) {
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int height = optv4.rect.height();
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if ((int) fd->num == first_frame_) {
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op.drawLine(0, height / 2, 0, height);
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op.drawLine(1, height / 2, en_w, height / 2);
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} else if ((int) fd->num > first_frame_ && (int) fd->num < last_frame_) {
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op.drawLine(0, 0, 0, height);
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} else if ((int) fd->num == last_frame_) {
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op.drawLine(0, 0, 0, height / 2);
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op.drawLine(1, height / 2, en_w, height / 2);
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}
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}
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if (related_frames_.contains(fd->num)) {
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op.setBrush(fg);
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op.drawEllipse(QPointF(0.0, optv4.rect.height() / 2), 2, 2);
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}
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painter->setOpacity(alpha);
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painter->drawImage(optv4.rect.x(), optv4.rect.y(), overlay);
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painter->restore();
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}
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QSize RelatedPacketDelegate::sizeHint(const QStyleOptionViewItem &option,
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const QModelIndex &index) const {
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return QSize(option.fontMetrics.height() + QStyledItemDelegate::sizeHint(option, index).width(),
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QStyledItemDelegate::sizeHint(option, index).height());
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}
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void RelatedPacketDelegate::clear()
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{
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related_frames_.clear();
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first_frame_ = last_frame_ = -1;
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}
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void RelatedPacketDelegate::addRelatedFrame(int frame_num)
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{
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related_frames_ << frame_num;
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}
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void RelatedPacketDelegate::setConversationSpan(int first_frame, int last_frame)
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{
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first_frame_ = first_frame;
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last_frame_ = last_frame;
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}
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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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