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Implemented history writer

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This commit is contained in:
Martino Ferrari
2026-06-14 14:09:51 +02:00
parent f25bd7f08e
commit dd7dd22cb0
27 changed files with 1537 additions and 104 deletions
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Client/streamhub/PlotPanel.cpp
+40 -4
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@@ -204,6 +204,13 @@ void RenderPlotPanel(App& app, int plotIdx, bool& paused) {
zc.t0 <= app.plotXMin(plotIdx) + 1e-9 &&
zc.t1 >= app.plotXMax(plotIdx) - 1e-9));
/* History zoom cache (disk-backed, for ranges beyond in-memory ring) */
auto& hc = app.histZoomCache(plotIdx);
const bool useHistData = !trigView && !live && !useZoomData &&
hc.valid &&
hc.t0 <= app.plotXMin(plotIdx) + 1e-9 &&
hc.t1 >= app.plotXMax(plotIdx) - 1e-9;
/* Fill tStore/vStore[si] from the frozen view (paused) or the live ring */
auto readBase = [&](size_t si, const Signal& sig, const std::string& key) {
if (paused && snap.valid) {
@@ -249,6 +256,18 @@ void RenderPlotPanel(App& app, int plotIdx, bool& paused) {
if (!found) {
readBase(si, sig, key);
}
} else if (useHistData) {
bool found = false;
for (const auto& hs : hc.signals) {
if (hs.name != key) continue;
tStore[si] = hs.t;
vStore[si] = hs.v;
found = true;
break;
}
if (!found) {
readBase(si, sig, key);
}
} else {
readBase(si, sig, key);
}
@@ -375,6 +394,13 @@ void RenderPlotPanel(App& app, int plotIdx, bool& paused) {
}
}
/* History indicator */
if (useHistData) {
ImGui::SameLine();
ImGui::TextColored(ImVec4(0.980f,0.702f,0.529f,1.f),
ICON_FA_CLOCK_ROTATE_LEFT " HIST");
}
/* Norm mode + cursors toggles */
ImGui::SameLine();
{
@@ -659,7 +685,9 @@ void RenderPlotPanel(App& app, int plotIdx, bool& paused) {
}
} else if (!live) {
/* Non-live: debounced — every zoom/pan settles into one
* request, so each zoom level gets fresh resolution. */
* request, so each zoom level gets fresh resolution.
* If the range is covered by the in-memory ring, use regular
* zoom; otherwise try historyZoom (disk-backed). */
static double rangeChangedAt[kPlotSlotsMax] = {};
static double lastT0[kPlotSlotsMax] = {}, lastT1[kPlotSlotsMax] = {};
const double now = ImGui::GetTime();
@@ -670,9 +698,17 @@ void RenderPlotPanel(App& app, int plotIdx, bool& paused) {
rangeChangedAt[plotIdx] = now;
} else if (rangeChangedAt[plotIdx] > 0.0 &&
now - rangeChangedAt[plotIdx] > 0.35 &&
!zc.pending &&
!(zc.valid && zc.t0 == t0 && zc.t1 == t1)) {
if (!csv.empty()) { app.requestZoom(plotIdx, t0, t1, csv); }
!csv.empty()) {
/* Try regular zoom first */
if (!zc.pending && !(zc.valid && zc.t0 == t0 && zc.t1 == t1)) {
app.requestZoom(plotIdx, t0, t1, csv);
}
/* Also try history zoom if history is available */
const auto& hi = app.historyInfo();
if (hi.enabled && !hc.pending &&
!(hc.valid && hc.t0 == t0 && hc.t1 == t1)) {
app.requestHistoryZoom(plotIdx, t0, t1, csv);
}
rangeChangedAt[plotIdx] = 0.0;
}
}