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https://github.com/MarekZegare4/MeshCore-Solo.git
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JakubandClaude Opus 5.5
ab767e7ae1
Chart.h draws Diagnostics > History, the noise sweep and the trail's height
profile: round values up the left, labels along the bottom, a solid fill
(no transparency) and, under a finger, the sample's value and when / where.
Sim: sim_open("histdemo") / ("profdemo") fill them with made-up data.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
61 lines
2.4 KiB
C++
61 lines
2.4 KiB
C++
#pragma once
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// A trail's height profile (ui-core/TrailProfile.h) as a chart (Chart.h):
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// the height over the distance, the climb and the highest and lowest points
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// over it. In the live trail's Map tools section and
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// a saved trail's popup. ui-new draws the same on e-ink and the OLED
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// (TrailScreen.h).
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//
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// Single-TU fragment: included by ui-lvgl/UITask.cpp before NavMap.h.
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namespace profileview {
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static trailprofile::Sampler s_prof; // what the chart on screen shows
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static chart::Chart s_chart;
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static char s_under[3][12];
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static void distText(float m, char* out, size_t n) {
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if (m < 1000) snprintf(out, n, "%d m", (int)lroundf(m));
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else snprintf(out, n, "%.1f km", m / 1000.0f);
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}
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} // namespace profileview
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// The chart, `h` tall, into `parent`, for what s_prof holds; nothing when
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// the trail has no heights. Returns the chart, or null.
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static lv_obj_t* profileChart(lv_obj_t* parent, int h) {
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using namespace profileview;
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if (!s_prof.st.any || s_prof.n < 2) return nullptr;
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chart::Chart& c = s_chart;
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c = chart::Chart();
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const float total = s_prof.total > 0 ? s_prof.total : 1.0f;
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c.n = s_prof.n;
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c.spaced = true;
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for (int i = 0; i < c.n; i++) {
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c.v[i] = s_prof.alt[i];
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c.x[i] = (uint16_t)lroundf(s_prof.dist[i] / total * 10000);
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}
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c.min_span = 20;
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c.axis = [](int v, int, char* o, size_t n) { snprintf(o, n, "%d m", v); };
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c.value = [](const chart::Chart& c, int i, char* o, size_t n) { snprintf(o, n, "%d m", c.v[i]); };
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c.where = [](const chart::Chart& c, int i, char* o, size_t n) { (void)c; distText(s_prof.dist[i], o, n); };
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distText(0, s_under[0], sizeof(s_under[0]));
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distText(total / 2, s_under[1], sizeof(s_under[1]));
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distText(total, s_under[2], sizeof(s_under[2]));
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for (int j = 0; j < 3; j++) c.under[j] = s_under[j];
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const int lh = lv_font_get_line_height(THEME_FONT_SMALL);
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c.top = lh + 2; // the caption
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lv_obj_t* box = lv_obj_create(parent);
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styleSurface(box, theme::SURFACE);
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lv_obj_remove_flag(box, LV_OBJ_FLAG_SCROLLABLE);
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lv_obj_remove_flag(box, LV_OBJ_FLAG_CLICKABLE);
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fillWidth(box);
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lv_obj_set_height(box, h);
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lv_obj_set_style_radius(box, theme::RADIUS_SM, 0);
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lv_obj_set_style_pad_all(box, 6, 0);
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lv_obj_t* o = chart::create(box, c, h - 12);
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char t[64];
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snprintf(t, sizeof(t), "Climb %d m - highest %d m - lowest %d m", s_prof.st.gain, s_prof.st.hi, s_prof.st.lo);
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lv_obj_align(label(o, t, THEME_FONT_SMALL, theme::TEXT_MUTED), LV_ALIGN_TOP_LEFT, 0, 0);
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return box;
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}
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