diff --git a/examples/companion_radio/ui-new/NavView.h b/examples/companion_radio/ui-new/NavView.h new file mode 100644 index 00000000..967c8c24 --- /dev/null +++ b/examples/companion_radio/ui-new/NavView.h @@ -0,0 +1,63 @@ +#pragma once +// Shared "navigate to a point" view. The target is just a (lat, lon, label) +// triple, so the same screen serves Waypoints, trail Backtrack and Nearby +// node navigation. No magnetometer: we show two *absolute* bearings — the +// target's bearing and the user's course over ground — and let the user +// compare them ("target 145°, I'm heading 090° → bear right"). +// +// Pure render helper; the caller supplies its own GPS fix + COG (from UITask). + +#include +#include "../GeoUtils.h" + +namespace navview { + +// own_valid : is there a usable GPS fix for the device right now +// cog_valid : is there a stable course-over-ground (UITask::currentCourse) +inline void draw(DisplayDriver& d, + bool own_valid, int32_t own_lat, int32_t own_lon, + int32_t tgt_lat, int32_t tgt_lon, + const char* label, + bool cog_valid, int cog_deg) { + const int cx = d.width() / 2; + const int hdr = d.headerH(); + + // Title bar: label, inverted (matches the Nearby/discover detail style). + char title[24]; + d.translateUTF8ToBlocks(title, (label && label[0]) ? label : "Navigate", sizeof(title)); + d.setColor(DisplayDriver::LIGHT); + d.fillRect(0, 0, d.width(), hdr - 1); + d.setColor(DisplayDriver::DARK); + d.drawTextEllipsized(2, 1, d.width() - 4, title); + d.setColor(DisplayDriver::LIGHT); + d.fillRect(0, hdr - 1, d.width(), d.sepH()); + + if (!own_valid) { + d.drawTextCentered(cx, hdr + (d.height() - hdr) / 2 - d.getLineHeight(), "No GPS fix"); + return; + } + + int to_deg = geo::bearingDeg(own_lat, own_lon, tgt_lat, tgt_lon); + float dist_km = geo::haversineKm(own_lat, own_lon, tgt_lat, tgt_lon); + char dist[12]; + geo::fmtDist(dist, sizeof(dist), dist_km); + + const int step = d.lineStep(); + int y = hdr + 2; + + // Distance — emphasised at size 2. + d.setTextSize(2); + d.drawTextCentered(cx, y, dist); + y += d.getLineHeight() + 3; + d.setTextSize(1); + + char line[20]; + snprintf(line, sizeof(line), "To: %d %s", to_deg, geo::bearingCardinal(to_deg)); + d.drawTextLeftAlign(2, y, line); y += step; + + if (cog_valid) snprintf(line, sizeof(line), "Hdg: %d %s", cog_deg, geo::bearingCardinal(cog_deg)); + else snprintf(line, sizeof(line), "Hdg: --"); + d.drawTextLeftAlign(2, y, line); y += step; +} + +} // namespace navview