Martino Ferrari
105 lines
3.1 KiB
C++
105 lines
3.1 KiB
C++
/**
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* @file HistoryBar.cpp
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*/
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#include "HistoryBar.h"
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#include "Hub.h"
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#include "PlotGrid.h"
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#include "Theme.h"
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#include <QHBoxLayout>
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#include <QLabel>
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#include <QPushButton>
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#include <QDateTime>
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namespace shq {
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static double nowSec() {
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return QDateTime::currentMSecsSinceEpoch() / 1000.0;
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}
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HistoryBar::HistoryBar(Hub* hub, PlotGrid* grid, QWidget* parent)
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: QWidget(parent), hub_(hub), grid_(grid) {
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auto* lay = new QHBoxLayout(this);
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lay->setContentsMargins(6, 2, 6, 2);
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lay->setSpacing(4);
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auto* title = new QLabel("History", this);
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title->setStyleSheet("color:#fab387; font-weight:bold;");
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lay->addWidget(title);
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auto* liveBtn = new QPushButton("Live", this);
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connect(liveBtn, &QPushButton::clicked, this, [this]() {
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grid_->goLive();
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Q_EMIT liveRequested();
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});
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lay->addWidget(liveBtn);
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rangeLbl_ = new QLabel("No range", this);
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rangeLbl_->setStyleSheet("color:#a6adc8;");
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rangeLbl_->setMinimumWidth(170);
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lay->addWidget(rangeLbl_);
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auto* left = new QPushButton("\u25c0", this); /* pan left */
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left->setMaximumWidth(32);
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connect(left, &QPushButton::clicked, this, [this]() { grid_->panAll(-0.75); });
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lay->addWidget(left);
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auto* right = new QPushButton("\u25b6", this); /* pan right */
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right->setMaximumWidth(32);
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connect(right, &QPushButton::clicked, this, [this]() { grid_->panAll(0.75); });
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lay->addWidget(right);
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/* Jump presets. */
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static const double kJumpSec[] = {10, 30, 60, 300, 600, 1800, 3600};
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static const char* kJumpLabel[] = {"10s","30s","1m","5m","10m","30m","1h"};
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for (int j = 0; j < 7; j++) {
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double sec = kJumpSec[j];
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auto* b = new QPushButton(kJumpLabel[j], this);
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b->setMaximumWidth(40);
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connect(b, &QPushButton::clicked, this, [this, sec]() {
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grid_->jumpAllAgo(sec);
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});
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lay->addWidget(b);
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}
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auto* allBtn = new QPushButton("All", this);
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allBtn->setMaximumWidth(40);
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connect(allBtn, &QPushButton::clicked, this, &HistoryBar::showAll);
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lay->addWidget(allBtn);
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lay->addStretch(1);
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}
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void HistoryBar::showAll() {
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const auto& hi = hub_->historyInfo();
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double t0 = 1e300, t1 = -1e300;
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for (const auto& hs : hi.signals) {
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if (hs.t0 < t0) { t0 = hs.t0; }
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if (hs.t1 > t1) { t1 = hs.t1; }
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}
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if (t1 > t0) { grid_->setAllStoredX(t0, t1); }
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}
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void HistoryBar::updateReadout() {
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double t0, t1;
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if (!grid_->currentRange(t0, t1)) {
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rangeLbl_->setText("Live");
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return;
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}
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double span = t1 - t0;
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double ago = nowSec() - t1;
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QString s;
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if (ago < 1.0) {
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s = QString("%1 s span | now").arg(span, 0, 'g', 3);
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} else if (ago < 60.0) {
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s = QString("%1 s span | %2 s ago").arg(span, 0, 'g', 3).arg(ago, 0, 'f', 0);
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} else if (ago < 3600.0) {
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s = QString("%1 s span | %2 min ago").arg(span, 0, 'g', 3).arg(ago / 60.0, 0, 'f', 1);
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} else {
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s = QString("%1 s span | %2 h ago").arg(span, 0, 'g', 3).arg(ago / 3600.0, 0, 'f', 1);
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}
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rangeLbl_->setText(s);
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}
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} /* namespace shq */
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