diff options
Diffstat (limited to 'ui/qt/models/timeline_delegate.cpp')
-rw-r--r-- | ui/qt/models/timeline_delegate.cpp | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/ui/qt/models/timeline_delegate.cpp b/ui/qt/models/timeline_delegate.cpp new file mode 100644 index 0000000..07a7409 --- /dev/null +++ b/ui/qt/models/timeline_delegate.cpp @@ -0,0 +1,128 @@ +/* timeline_delegate.cpp + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 Gerald Combs + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include <ui/qt/models/timeline_delegate.h> +#include <ui/qt/models/atap_data_model.h> + +#include <ui/qt/utils/color_utils.h> + +#include <QApplication> +#include <QPainter> +#include <QTreeView> +#include <QAbstractProxyModel> + +// XXX We might want to move this to conversation_dialog.cpp. + +// PercentBarDelegate uses a stronger blend value, but its bars are also +// more of a prominent feature. Make the blend weaker here so that we don't +// obscure our text. +static const double bar_blend_ = 0.08; + +TimelineDelegate::TimelineDelegate(QWidget *parent) : + QStyledItemDelegate(parent) +{ + _dataRole = Qt::UserRole; +} + +void TimelineDelegate::setDataRole(int dataRole) +{ + _dataRole = dataRole; +} + +void TimelineDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, + const QModelIndex &index) const +{ + QStyleOptionViewItem option_vi = option; + QStyledItemDelegate::initStyleOption(&option_vi, index); + + bool drawBar = false; + struct timeline_span span_px = index.data(_dataRole).value<struct timeline_span>(); + if (_dataRole == ATapDataModel::TIMELINE_DATA) { + double span_s = span_px.maxRelTime - span_px.minRelTime; + QTreeView * tree = qobject_cast<QTreeView *>(parent()); + if (tree) { + QAbstractProxyModel * proxy = qobject_cast<QAbstractProxyModel *>(tree->model()); + if (proxy && proxy->sourceModel()) { + QModelIndex indexStart = proxy->mapFromSource(proxy->sourceModel()->index(0, span_px.colStart)); + int colStart = -1; + int start_px = 0; + if (indexStart.isValid()) { + colStart = indexStart.column(); + start_px = tree->columnWidth(colStart); + } + int colDuration = -1; + int column_px = start_px; + QModelIndex indexDuration = proxy->mapFromSource(proxy->sourceModel()->index(0, span_px.colDuration)); + if (indexDuration.isValid()) { + colDuration = indexDuration.column(); + column_px += tree->columnWidth(colDuration); + } + + span_px.start = ((span_px.startTime - span_px.minRelTime) * column_px) / span_s; + span_px.width = ((span_px.stopTime - span_px.startTime) * column_px) / span_s; + + if (index.column() == colStart) { + drawBar = true; + } else if (index.column() == colDuration) { + drawBar = true; + span_px.start -= start_px; + } + } + } + } + + if (!drawBar) { + QStyledItemDelegate::paint(painter, option, index); + return; + } + + // Paint our rect with no text using the current style, then draw our + // bar and text over it. + option_vi.text = QString(); + QStyle *style = option_vi.widget ? option_vi.widget->style() : QApplication::style(); + style->drawControl(QStyle::CE_ItemViewItem, &option_vi, painter, option_vi.widget); + + if (QApplication::style()->objectName().contains("vista")) { + // QWindowsVistaStyle::drawControl does this internally. Unfortunately there + // doesn't appear to be a more general way to do this. + option_vi.palette.setColor(QPalette::All, QPalette::HighlightedText, + option_vi.palette.color(QPalette::Active, QPalette::Text)); + } + + QPalette::ColorGroup cg = option_vi.state & QStyle::State_Enabled + ? QPalette::Normal : QPalette::Disabled; + QColor text_color = option_vi.palette.color(cg, QPalette::Text); + QColor bar_color = ColorUtils::alphaBlend(option_vi.palette.windowText(), + option_vi.palette.window(), bar_blend_); + + if (cg == QPalette::Normal && !(option_vi.state & QStyle::State_Active)) + cg = QPalette::Inactive; + if (option_vi.state & QStyle::State_Selected) { + text_color = option_vi.palette.color(cg, QPalette::HighlightedText); + bar_color = ColorUtils::alphaBlend(option_vi.palette.color(cg, QPalette::Window), + option_vi.palette.color(cg, QPalette::Highlight), + bar_blend_); + } + + painter->save(); + int border_radius = 3; // We use 3 px elsewhere, e.g. filter combos. + QRect timeline_rect = option.rect; + timeline_rect.adjust(span_px.start, 1, 0, -1); + timeline_rect.setWidth(span_px.width); + painter->setClipRect(option.rect); + painter->setPen(Qt::NoPen); + painter->setBrush(bar_color); + painter->drawRoundedRect(timeline_rect, border_radius, border_radius); + painter->restore(); + + painter->save(); + painter->setPen(text_color); + painter->drawText(option.rect, Qt::AlignCenter, index.data(Qt::DisplayRole).toString()); + painter->restore(); +} |