Martino Ferrari
111 lines
3.1 KiB
C++
111 lines
3.1 KiB
C++
/**
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* @file PlotWidget.h
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* @brief Oscilloscope plot panel (custom QPainter), one per grid cell.
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*
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* Mirrors the ImGui PlotPanel: fixed +/-4 division Y space, wall-clock live X
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* window, LTTB decimation, normal/digital/mixed normalization, A/B cursors,
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* scroll/drag zoom + pan, zoom history, hi-res WS zoom + history zoom, and a
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* trigger-capture view rendered in [-pre, +post].
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*/
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#pragma once
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#include "Model.h"
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#include <QWidget>
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#include <QString>
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#include <vector>
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#include <utility>
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#include <string>
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class QHBoxLayout;
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class QToolButton;
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class QLabel;
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namespace shq {
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class Hub;
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/** View state shared (synchronised) across all plots; owned by MainWindow. */
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struct GlobalView {
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double windowSec = 10.0; /* live scroll window width */
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bool paused = false; /* global pause */
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bool cursorsOn = false;
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double cursorA = 0.0;
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double cursorB = 0.0;
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bool trigView = false; /* trigger bar open → render capture */
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};
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class PlotCanvas;
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class PlotWidget : public QWidget {
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Q_OBJECT
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public:
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PlotWidget(Hub* hub, GlobalView* gv, int plotIdx, QWidget* parent = nullptr);
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std::vector<PlotAssignment>& slots() { return slots_; }
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void addAssignment(int sourceIdx, int signalIdx);
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/** Called by MainWindow when sources/config change so badges refresh. */
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void onModelChanged();
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/** Called by MainWindow when global pause toggles. */
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void onPauseChanged();
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/** Reset zoom/live state (e.g. when entering/leaving history mode). */
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void setLive(bool live);
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bool isLive() const { return live_; }
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void setStoredX(double mn, double mx);
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double xMin() const { return plotXMin_; }
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double xMax() const { return plotXMax_; }
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int plotIdx() const { return plotIdx_; }
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public Q_SLOTS:
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void onZoomReceived(int plotIdx);
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void onHistoryZoomReceived(int plotIdx);
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void onCaptureReceived();
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void tick(); /* ~60 Hz repaint + throttled zoom requests */
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private:
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friend class PlotCanvas;
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void rebuildHeader();
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void showBadgeMenu(int slotIdx, const QPoint& globalPos);
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void pushZoomHist();
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void initPlotX(double tMax);
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Hub* hub_;
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GlobalView* gv_;
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int plotIdx_;
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PlotCanvas* canvas_ = nullptr;
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QHBoxLayout* headerLay_ = nullptr;
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QWidget* header_ = nullptr;
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QLabel* cursorLbl_ = nullptr;
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std::vector<PlotAssignment> slots_;
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bool live_ = true;
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bool paused_ = false;
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double plotXMin_ = 0.0;
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double plotXMax_ = 0.0;
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int vMode_ = 0; /* 0 normal 1 digital 2 mixed */
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int activeSlot_ = -1;
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bool trigZoomed_ = false;
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std::vector<std::pair<double,double>> zoomHist_;
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/* Paused view snapshot (double buffer). */
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struct Snapshot {
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bool valid = false;
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std::vector<std::string> keys;
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std::vector<std::vector<double>> t, v;
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} snap_;
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/* Throttle timers (ms wall clock). */
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double lastLiveZoomMs_ = 0.0;
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double rangeChangedMs_ = 0.0;
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double lastT0_ = 0.0, lastT1_ = 0.0;
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double lastHistPushMs_ = 0.0;
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};
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} /* namespace shq */
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