cabana: colorful logs based on activity (#27008)
* color logs
* remove space
* update in updateColors
old-commit-hash: b2675cef9a
beeps
Dean Lee
2 years ago
committed by
GitHub
parent
802bc4e8e2
commit
fc3dac373e
9 changed files with 176 additions and 130 deletions
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#include "tools/cabana/util.h" |
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#include <QFontDatabase> |
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#include <QPainter> |
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static QColor blend(QColor a, QColor b) { |
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return QColor((a.red() + b.red()) / 2, (a.green() + b.green()) / 2, (a.blue() + b.blue()) / 2, (a.alpha() + b.alpha()) / 2); |
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} |
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const QVector<QColor> &HexColors::compute(const QByteArray &dat, double ts, uint32_t freq) { |
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if (prev_dat.size() != dat.size()) { |
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colors.resize(dat.size()); |
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last_change_t.resize(dat.size()); |
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std::fill(colors.begin(), colors.end(), QColor(0, 0, 0, 0)); |
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std::fill(last_change_t.begin(), last_change_t.end(), ts); |
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} else { |
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for (int i = 0; i < dat.size(); ++i) { |
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const uint8_t last = prev_dat[i]; |
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const uint8_t cur = dat[i]; |
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if (last != cur) { |
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double delta_t = ts - last_change_t[i]; |
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if (delta_t * freq > periodic_threshold) { |
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// Last change was while ago, choose color based on delta up or down
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if (cur > last) { |
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colors[i] = QColor(0, 187, 255, start_alpha); // Cyan
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} else { |
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colors[i] = QColor(255, 0, 0, start_alpha); // Red
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} |
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} else { |
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// Periodic changes
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colors[i] = blend(colors[i], QColor(102, 86, 169, start_alpha / 2)); // Greyish/Blue
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} |
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last_change_t[i] = ts; |
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} else { |
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// Fade out
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float alpha_delta = 1.0 / (freq + 1) / fade_time; |
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colors[i].setAlphaF(std::max(0.0, colors[i].alphaF() - alpha_delta)); |
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} |
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} |
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} |
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prev_dat = dat; |
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return colors; |
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} |
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void HexColors::clear() { |
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prev_dat.clear(); |
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last_change_t.clear(); |
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colors.clear(); |
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} |
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QList<QVariant> HexColors::toVariantList(const QVector<QColor> &colors) { |
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QList<QVariant> ret; |
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ret.reserve(colors.size()); |
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for (auto &c : colors) ret.append(c); |
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return ret; |
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} |
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// MessageBytesDelegate
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MessageBytesDelegate::MessageBytesDelegate(QObject *parent) : QStyledItemDelegate(parent) { |
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fixed_font = QFontDatabase::systemFont(QFontDatabase::FixedFont); |
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} |
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void MessageBytesDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const { |
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QList<QVariant> colors = index.data(Qt::UserRole).toList(); |
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if (colors.empty()) { |
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QStyledItemDelegate::paint(painter, option, index); |
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return; |
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} |
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QStyleOptionViewItemV4 opt = option; |
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initStyleOption(&opt, index); |
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if ((option.state & QStyle::State_Selected) && (option.state & QStyle::State_Active)) { |
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painter->setPen(option.palette.color(QPalette::HighlightedText)); |
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} else { |
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painter->setPen(option.palette.color(QPalette::Text)); |
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} |
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painter->setFont(fixed_font); |
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QRect space = painter->boundingRect(opt.rect, opt.displayAlignment, " "); |
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QRect pos = painter->boundingRect(opt.rect, opt.displayAlignment, "00"); |
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pos.moveLeft(pos.x() + space.width()); |
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int m = space.width() / 2; |
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const QMargins margins(m + 1, m, m, m); |
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int i = 0; |
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for (auto &byte : opt.text.split(" ")) { |
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if (i < colors.size()) { |
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painter->fillRect(pos.marginsAdded(margins), colors[i].value<QColor>()); |
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} |
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painter->drawText(pos, opt.displayAlignment, byte); |
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pos.moveLeft(pos.right() + space.width()); |
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i++; |
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} |
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} |
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@ -0,0 +1,38 @@ |
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#pragma once |
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#include <QByteArray> |
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#include <QColor> |
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#include <QFont> |
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#include <QStyledItemDelegate> |
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#include <QVector> |
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class HexColors { |
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public: |
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const QVector<QColor> &compute(const QByteArray &dat, double ts, uint32_t freq); |
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static QList<QVariant> toVariantList(const QVector<QColor> &colors); |
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void clear(); |
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private: |
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const int periodic_threshold = 10; |
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const int start_alpha = 128; |
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const float fade_time = 2.0; |
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QByteArray prev_dat; |
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QVector<double> last_change_t; |
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QVector<QColor> colors; |
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}; |
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class MessageBytesDelegate : public QStyledItemDelegate { |
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Q_OBJECT |
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public: |
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MessageBytesDelegate(QObject *parent); |
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void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override; |
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QFont fixed_font; |
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}; |
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inline QString toHex(const QByteArray &dat) { return dat.toHex(' ').toUpper(); } |
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inline char toHex(uint value) { return "0123456789ABCDEF"[value & 0xF]; } |
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inline const QString &getColor(int i) { |
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// TODO: add more colors
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static const QString SIGNAL_COLORS[] = {"#9FE2BF", "#40E0D0", "#6495ED", "#CCCCFF", "#FF7F50", "#FFBF00"}; |
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return SIGNAL_COLORS[i % std::size(SIGNAL_COLORS)]; |
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} |
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