nilsandClaude Opus 5.5
f7c489858e
The map was hardware-rendered, but every frame recomputed every road point, rebuilt every path and drew the big roads three times, at 20 frames a second, and the car jumped with each GPS fix. Now it is its own view under the Grid (MapLayerView, a hardware layer): drawn once into a GPU texture and only redrawn when tiles change or after about 230 m; each display frame only sets its translation and rotation. The car glides between fixes, and the Grid over the map redraws only with the readings. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01LhzAVaUyqcw5PkGjz4mWW6
535 lines
23 KiB
Java
535 lines
23 KiB
Java
package com.evsuite.abrp;
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import android.content.Context;
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import android.graphics.Canvas;
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import android.graphics.LinearGradient;
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import android.graphics.Paint;
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import android.graphics.Path;
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import android.graphics.RectF;
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import android.graphics.Shader;
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import android.graphics.Typeface;
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import android.os.SystemClock;
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/**
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* The Grid Overview style, after the neon world of the Tron films: glowing lines on black, a
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* perspective grid floor that runs towards you with the speed, and shapes with cut corners.
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*
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* Centre: the speed, large and thin. Left: the battery as a segmented light wall standing on
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* the floor, with the charge and range beside it. Right: power on a disc — the ring lights from
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* the top, clockwise while drawing and anticlockwise while regenerating, and its inner ring
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* turns with the power. On the floor, the last two minutes of power as a light-cycle trail,
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* which only ever turns at right angles. P R N D as tiles on top, the clock top right, and a
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* row of read-outs along the bottom. Unread values show "—", light nothing and leave gaps in
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* the trail; the floor stands still when the speed is unread.
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*
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* With a map ("Grid with map", {@link MapRoads}): the roads round the car from OpenStreetMap lie
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* under everything, heading up, the bigger ones glowing brighter, with the car as a light
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* marker low on the screen; between GPS fixes the car's position runs on
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* with the speed. The map is then the whole background, straight from above (about
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* 400 m ahead, 450 m to each side), over a ground grid (a line every 50 m) that turns and slides
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* with the roads, fading into the dark towards the top. It is its own view under this one
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* ({@link MapLayerView}): drawn once into a hardware layer and moved and turned by the GPU each
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* display frame, the car gliding between fixes; the speed, the battery wall, the disc and the clock stand on dark panels over
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* it, and the trail makes way for the map. Without a fix, a server or the roads, the plain floor with a line
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* saying why.
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*
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* Two palettes: the original cyan, or the chosen accent colour ({@link #setAccentPalette}). A
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* low battery is orange in the original (the films' other side) and white in the accent one,
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* so it never looks like the accent itself. The floor and the disc animate (about 30 frames a
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* second) only while the car moves and the view is on screen.
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*/
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final class GridView extends ClusterCanvasView {
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/** Battery segments in the light wall, disc segments, metres per grid tile. */
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private static final int WALL = 20, DISC = 60;
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private static final float TILE_M = 4f;
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private final Paint line = new Paint(Paint.ANTI_ALIAS_FLAG);
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private final Paint fill = new Paint(Paint.ANTI_ALIAS_FLAG);
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private final Paint text = new Paint(Paint.ANTI_ALIAS_FLAG);
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private final Paint sky = new Paint();
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private final Path path = new Path();
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private android.graphics.DashPathEffect dash;
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private float dashFor;
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private final RectF r = new RectF();
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private final Typeface thin = Typeface.create("sans-serif-thin", Typeface.NORMAL);
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private final Typeface label = Typeface.create("sans-serif-condensed", Typeface.BOLD);
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private final int accent, accentLight;
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/** Null for the plain Grid. */
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private final MapRoads map;
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/** The map under this view (a hardware layer, moved by the GPU); null for the plain Grid. */
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private final MapLayerView mapLayer;
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private final Paint fade = new Paint();
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private int fadeFor = -1;
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private int main, light, dim, alert;
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/** The floor's position within one tile (0..1) and the disc's inner ring angle. */
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private float floorPhase, discTurn;
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private long lastFrame;
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private int skyFor = -1;
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GridView(Context context) {
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this(context, null);
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}
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GridView(Context context, MapRoads map) {
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super(context);
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this.map = map;
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mapLayer = map == null ? null : new MapLayerView(context, map);
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accent = AccentColor.resolve(context, R.attr.evAccent);
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accentLight = AccentColor.resolve(context, R.attr.evAccentLight);
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line.setStyle(Paint.Style.STROKE);
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line.setStrokeCap(Paint.Cap.SQUARE);
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line.setStrokeJoin(Paint.Join.MITER);
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setAccentPalette(false);
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}
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/** The chosen accent colour instead of the original cyan. */
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void setAccentPalette(boolean useAccent) {
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main = useAccent ? accent : 0xFF18E6FF;
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light = useAccent ? accentLight : 0xFFC8FCFF;
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dim = AccentColor.withAlpha(main, 0x40);
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alert = useAccent ? 0xFFFFFFFF : 0xFFFF8A1F;
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skyFor = -1;
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if (mapLayer != null) mapLayer.setColours(main, light);
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invalidate();
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}
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/** The map layer, for the pane to put under this view; null for the plain Grid. */
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MapLayerView mapLayer() {
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return mapLayer;
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}
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@Override
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void setValues(ClusterValues values) {
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super.setValues(values);
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if (mapLayer != null) {
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mapLayer.setSpeed(v.speedKmh);
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mapLayer.kick();
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}
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}
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@Override
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protected void onDraw(Canvas c) {
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super.onDraw(c);
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float w = getWidth(), h = getHeight();
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if (w <= 0 || h <= 0) return;
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float u = Math.min(h / 640f, w / 1100f);
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advance();
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// With a map, the map layer underneath is the whole background (this view stays clear
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// there), and the rest stands on dark panels over it.
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boolean mapShown = mapLayer != null && mapLayer.isShowing();
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float horizon = h * 0.55f;
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if (mapShown) {
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drawCar(c, w, h, u);
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} else {
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c.drawColor(0xFF000000);
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drawSky(c, w, horizon);
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drawFloor(c, w, h, horizon, u);
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}
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if (map != null && !mapShown) drawMapState(c, w, h, horizon, u);
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if (mapShown) drawPanels(c, w, horizon, u);
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drawGears(c, w, u);
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drawClock(c, w, u);
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if (mapShown) drawMapSpeed(c, w, u);
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else drawSpeed(c, w, horizon, u);
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drawWall(c, horizon, u);
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drawDisc(c, w, mapShown, u);
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if (!mapShown) drawTrail(c, w, h, u);
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drawReadouts(c, w, h, u);
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if (mapShown) drawAttribution(c, w, h, u);
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boolean moving = v.speedKmh != null && v.speedKmh > 0.5f;
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// Over the map only the readings change; the map layer moves itself.
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keepAnimating(moving && !mapShown, 33);
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}
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/** Moves the floor by the distance driven since the last frame, and turns the disc. */
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private void advance() {
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long now = SystemClock.uptimeMillis();
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float dt = lastFrame == 0 ? 0f : Math.min(0.2f, (now - lastFrame) / 1000f);
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lastFrame = now;
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if (v.speedKmh != null && v.speedKmh > 0.5f) {
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floorPhase = (floorPhase + v.speedKmh / 3.6f * dt / TILE_M) % 1f;
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}
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if (v.powerKw != null) discTurn = (discTurn + v.powerKw * 3f * dt) % 360f;
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}
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// ---------- Floor ----------
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private void drawSky(Canvas c, float w, float horizon) {
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if (skyFor != (int) horizon) {
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sky.setShader(new LinearGradient(0, horizon - horizon * 0.45f, 0, horizon,
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0x00000000, AccentColor.withAlpha(main, 0x30), Shader.TileMode.CLAMP));
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skyFor = (int) horizon;
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}
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c.drawRect(0, horizon - horizon * 0.45f, w, horizon, sky);
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}
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/** Lines converging on the horizon, and cross lines that run towards the viewer. */
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private void drawFloor(Canvas c, float w, float h, float horizon, float u) {
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float vx = w / 2f, depth = h - horizon;
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line.setStrokeWidth(1.2f * u);
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for (int i = -14; i <= 14; i++) {
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float bottomX = vx + i * w * 0.09f;
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line.setColor(AccentColor.withAlpha(main, 0x38));
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c.drawLine(vx + (bottomX - vx) * 0.02f, horizon, bottomX, h, line);
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}
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for (int k = 0; k < 24; k++) {
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float d = k + 1f - floorPhase;
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if (d <= 0.05f) continue;
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float y = horizon + depth / d;
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if (y > h || y < horizon + 1f) continue;
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float near = (y - horizon) / depth;
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line.setColor(AccentColor.withAlpha(main, (int) (0x10 + 0x50 * near)));
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c.drawLine(0, y, w, y, line);
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}
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glowLine(c, 0, horizon, w, horizon, main, 1.5f * u);
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}
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// ---------- Map ----------
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/** Over the map: the far roads fading into the dark towards the top, and the car. */
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private void drawCar(Canvas c, float w, float h, float u) {
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float carSx = w / 2f, carSy = h - MapLayerView.CAR_FROM_BOTTOM * u;
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if (fadeFor != (int) (carSy + h)) {
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fade.setShader(new LinearGradient(0, 0, 0, carSy, 0xB0000000, 0x00000000, Shader.TileMode.CLAMP));
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fadeFor = (int) (carSy + h);
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}
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c.drawRect(0, 0, w, carSy, fade);
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// A light-cycle chevron pointing ahead.
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path.reset();
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path.moveTo(carSx, carSy - 18f * u);
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path.lineTo(carSx + 12f * u, carSy + 11f * u);
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path.lineTo(carSx, carSy + 5f * u);
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path.lineTo(carSx - 12f * u, carSy + 11f * u);
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path.close();
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fill.setColor(light);
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c.drawPath(path, fill);
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glow(c, path, light, 1.5f * u);
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}
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/** Dark panels under the battery wall and the clock, so the map does not run through them. */
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private void drawPanels(Canvas c, float w, float horizon, float u) {
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chamfer(16f * u, 78f * u, 360f * u, horizon + 86f * u, 14f * u);
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fill.setColor(0xC8000000);
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c.drawPath(path, fill);
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chamfer(w - 210f * u, 12f * u, w - 12f * u, 82f * u, 10f * u);
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c.drawPath(path, fill);
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// Behind the gears as well.
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chamfer(w / 2f - 150f * u, 12f * u, w / 2f + 150f * u, 72f * u, 10f * u);
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c.drawPath(path, fill);
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}
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/** The speed over the map: smaller, on a panel under the gears. */
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private void drawMapSpeed(Canvas c, float w, float u) {
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chamfer(w / 2f - 130f * u, 80f * u, w / 2f + 130f * u, 232f * u, 14f * u);
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fill.setColor(0xC8000000);
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c.drawPath(path, fill);
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line.setColor(dim);
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line.setStrokeWidth(1.5f * u);
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c.drawPath(path, line);
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text.setTypeface(thin);
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text.setTextSize(120f * u);
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text.setTextAlign(Paint.Align.CENTER);
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glowText(c, fmt(v.speedKmh, "%.0f", "—"), w / 2f, 194f * u, light, u);
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caption(c, "KM/H", w / 2f, 220f * u, u, Paint.Align.CENTER);
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}
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/** Why the map is not there, on the floor. */
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private void drawMapState(Canvas c, float w, float h, float horizon, float u) {
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MapRoads.State state = map.state();
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String why = state == MapRoads.State.NO_SERVER ? "MAP · SET UP THE SERVER FIRST"
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: state == MapRoads.State.WAITING_FOR_GPS ? "MAP · WAITING FOR GPS"
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: state == MapRoads.State.UNAVAILABLE ? "MAP · NOT AVAILABLE, TRYING AGAIN"
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: "MAP · LOADING";
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caption(c, why, w / 2f, horizon + (h - horizon) * 0.2f, u, Paint.Align.CENTER);
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}
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/** The tiles' and the data's licences ask for their names wherever the map is shown. */
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private void drawAttribution(Canvas c, float w, float h, float u) {
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text.setTypeface(label);
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text.setTextSize(12f * u);
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text.setTextAlign(Paint.Align.RIGHT);
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text.setStyle(Paint.Style.FILL);
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text.setColor(dim);
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c.drawText("OpenFreeMap © OpenMapTiles · © OpenStreetMap contributors", w - 26f * u, h - 80f * u, text);
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}
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// ---------- Top ----------
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private void drawGears(Canvas c, float w, float u) {
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String[] gears = { "P", "R", "N", "D" };
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String now = Gear.label(v.gear);
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float tw = 58f * u, th = 40f * u, gap = 12f * u;
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float x = w / 2f - (gears.length * tw + (gears.length - 1) * gap) / 2f, top = 22f * u;
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text.setTypeface(label);
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text.setTextSize(24f * u);
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text.setTextAlign(Paint.Align.CENTER);
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for (String g : gears) {
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boolean on = g.equals(now);
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chamfer(x, top, x + tw, top + th, 9f * u);
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if (on) {
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fill.setColor(main);
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c.drawPath(path, fill);
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glow(c, path, main, 1.5f * u);
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} else {
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line.setColor(dim);
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line.setStrokeWidth(1.5f * u);
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c.drawPath(path, line);
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}
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text.setColor(on ? 0xFF000000 : dim);
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c.drawText(g, x + tw / 2f, top + th * 0.72f, text);
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x += tw + gap;
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}
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}
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private void drawClock(Canvas c, float w, float u) {
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text.setTypeface(thin);
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text.setTextSize(44f * u);
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text.setTextAlign(Paint.Align.RIGHT);
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glowText(c, v.clock.isEmpty() ? "—" : v.clock, w - 28f * u, 62f * u, light, u);
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}
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// ---------- Speed ----------
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private void drawSpeed(Canvas c, float w, float horizon, float u) {
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text.setTypeface(thin);
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text.setTextSize(210f * u);
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text.setTextAlign(Paint.Align.CENTER);
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glowText(c, fmt(v.speedKmh, "%.0f", "—"), w / 2f, horizon - 62f * u, light, u);
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caption(c, "KM/H", w / 2f, horizon - 22f * u, u, Paint.Align.CENTER);
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}
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// ---------- Battery wall ----------
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private void drawWall(Canvas c, float horizon, float u) {
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boolean low = v.socPercent != null && v.socPercent < 20f;
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int colour = low ? alert : main;
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float left = 34f * u, right = left + 52f * u, top = 96f * u, bottom = horizon + 70f * u;
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float seg = (bottom - top) / WALL;
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int lit = v.socPercent == null ? 0 : Math.round(v.socPercent / 100f * WALL);
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for (int i = 0; i < WALL; i++) {
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float b = bottom - i * seg, t = b - seg + 3f * u;
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r.set(left, t, right, b);
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if (i < lit) {
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fill.setColor(i == lit - 1 ? light : colour);
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c.drawRect(r, fill);
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} else {
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line.setColor(dim);
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line.setStrokeWidth(1f * u);
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c.drawRect(r, line);
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}
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}
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chamfer(left - 8f * u, top - 8f * u, right + 8f * u, bottom + 8f * u, 10f * u);
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glow(c, path, colour, 1.5f * u);
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float x = right + 30f * u;
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caption(c, low ? "LOW ENERGY" : "ENERGY", x, top + 18f * u, u, Paint.Align.LEFT);
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text.setTypeface(thin);
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text.setTextSize(96f * u);
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text.setTextAlign(Paint.Align.LEFT);
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String soc = fmt(v.socPercent, "%.0f", "—");
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glowText(c, soc, x, top + 116f * u, low ? alert : light, u);
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float socWidth = text.measureText(soc);
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text.setTextSize(36f * u);
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glowText(c, "%", x + socWidth + 8f * u, top + 116f * u, colour, u);
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caption(c, "RANGE", x, top + 168f * u, u, Paint.Align.LEFT);
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text.setTypeface(thin);
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text.setTextSize(52f * u);
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glowText(c, fmt(v.rangeKm, "%.0f km", "—"), x, top + 222f * u, light, u);
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}
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// ---------- Power disc ----------
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/** Zero at the top, −50 kW a quarter turn anticlockwise, 150 kW three quarters clockwise. */
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private void drawDisc(Canvas c, float w, boolean overMap, float u) {
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float cx = w - 170f * u, cy = 238f * u, outer = 132f * u, ring = 22f * u;
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if (overMap) {
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// The map runs under the disc: a dark backing keeps it readable.
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fill.setColor(0xD0000000);
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c.drawCircle(cx, cy, outer + 16f * u, fill);
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}
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line.setColor(dim);
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line.setStrokeWidth(1.5f * u);
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c.drawCircle(cx, cy, outer + 10f * u, line);
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float sweepPerKw = 270f / 200f;
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float power = v.powerKw == null ? 0f : Math.max(-50f, Math.min(150f, v.powerKw));
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float segDeg = 270f / DISC;
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for (int i = 0; i < DISC; i++) {
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// Segment i covers −50 + i·(200/DISC) … one step more, drawn from −135° (top-left).
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float kwFrom = -50f + i * 200f / DISC, kwTo = kwFrom + 200f / DISC;
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boolean on = v.powerKw != null
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&& (power >= 0 ? kwFrom >= 0f && kwFrom < power : kwTo <= 0f && kwTo > power);
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float start = -90f + kwFrom * sweepPerKw;
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r.set(cx - outer + ring / 2f, cy - outer + ring / 2f, cx + outer - ring / 2f, cy + outer - ring / 2f);
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line.setStrokeWidth(ring);
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line.setStrokeCap(Paint.Cap.BUTT);
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line.setColor(on ? (power < 0 ? light : main) : AccentColor.withAlpha(main, 0x22));
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c.drawArc(r, start + 0.6f, segDeg - 1.2f, false, line);
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}
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line.setStrokeCap(Paint.Cap.SQUARE);
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// The zero mark, and an inner ring of dashes that turns with the power.
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glowLine(c, cx, cy - outer - 16f * u, cx, cy - outer + ring + 6f * u, light, 2f * u);
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float inner = outer - ring - 22f * u;
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line.setStrokeWidth(3f * u);
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line.setColor(main);
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r.set(cx - inner, cy - inner, cx + inner, cy + inner);
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for (int k = 0; k < 8; k++) c.drawArc(r, discTurn + k * 45f, 26f, false, line);
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line.setColor(dim);
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line.setStrokeWidth(1f * u);
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c.drawCircle(cx, cy, inner - 12f * u, line);
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text.setTypeface(thin);
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text.setTextSize(64f * u);
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text.setTextAlign(Paint.Align.CENTER);
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glowText(c, fmt(v.powerKw, "%.1f", "—"), cx, cy + 18f * u, light, u);
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caption(c, v.powerKw != null && v.powerKw < 0f ? "KW · REGEN" : "KW", cx, cy + 50f * u, u,
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Paint.Align.CENTER);
|
||
caption(c, "POWER", cx, cy - 46f * u, u, Paint.Align.CENTER);
|
||
}
|
||
|
||
// ---------- Light trail ----------
|
||
|
||
/** Power over the last two minutes as a trail of right angles; NaN breaks it. */
|
||
private void drawTrail(Canvas c, float w, float h, float u) {
|
||
float[] trail = v.powerTrail;
|
||
float left = 300f * u, right = w - 360f * u, top = h * 0.66f, bottom = h * 0.84f;
|
||
if (right - left < 200f * u) return;
|
||
float max = 10f, min = -10f;
|
||
if (trail != null) {
|
||
for (float p : trail) {
|
||
if (Float.isNaN(p)) continue;
|
||
max = Math.max(max, (float) Math.ceil(p / 10f) * 10f);
|
||
min = Math.min(min, (float) Math.floor(p / 10f) * 10f);
|
||
}
|
||
}
|
||
float zero = bottom - (0f - min) / (max - min) * (bottom - top);
|
||
line.setColor(dim);
|
||
line.setStrokeWidth(1f * u);
|
||
if (dash == null || dashFor != u) {
|
||
dash = new android.graphics.DashPathEffect(new float[] { 6f * u, 8f * u }, 0);
|
||
dashFor = u;
|
||
}
|
||
line.setPathEffect(dash);
|
||
c.drawLine(left, zero, right, zero, line);
|
||
line.setPathEffect(null);
|
||
caption(c, "POWER · LAST 2 MIN", left, top - 10f * u, u, Paint.Align.LEFT);
|
||
if (trail == null || trail.length < 2) return;
|
||
|
||
float step = (right - left) / (trail.length - 1);
|
||
path.reset();
|
||
boolean open = false;
|
||
float lastX = 0, lastY = 0;
|
||
for (int i = 0; i < trail.length; i++) {
|
||
float p = trail[i];
|
||
if (Float.isNaN(p)) {
|
||
open = false;
|
||
continue;
|
||
}
|
||
float x = left + i * step, y = bottom - (p - min) / (max - min) * (bottom - top);
|
||
if (!open) {
|
||
path.moveTo(x, y);
|
||
open = true;
|
||
} else {
|
||
path.lineTo(x, lastY); // along, then a right angle
|
||
path.lineTo(x, y);
|
||
}
|
||
lastX = x;
|
||
lastY = y;
|
||
}
|
||
glow(c, path, main, 2.5f * u);
|
||
if (open) {
|
||
fill.setColor(light);
|
||
c.drawCircle(lastX, lastY, 5f * u, fill);
|
||
fill.setColor(AccentColor.withAlpha(main, 0x50));
|
||
c.drawCircle(lastX, lastY, 12f * u, fill);
|
||
}
|
||
}
|
||
|
||
// ---------- Read-outs ----------
|
||
|
||
private void drawReadouts(Canvas c, float w, float h, float u) {
|
||
String[][] cells = {
|
||
{ "USAGE · 5 MIN", fmt(v.usage5Min, "%.1f", "—") },
|
||
{ "SINCE START", fmt(v.usageTrip, "%.1f", "—") },
|
||
{ "TRIP", fmt(v.tripKm, "%.1f km", "—") },
|
||
{ "CLIMATE", fmt(v.climateCelsius, "%.0f °C", "—") },
|
||
{ "ODOMETER", fmt(v.odometerKm, "%,.0f km", "—") },
|
||
};
|
||
float margin = 24f * u, gap = 14f * u, top = h - 70f * u, bottom = h - 14f * u;
|
||
float cw = (w - 2 * margin - (cells.length - 1) * gap) / cells.length;
|
||
for (int i = 0; i < cells.length; i++) {
|
||
float l = margin + i * (cw + gap);
|
||
chamfer(l, top, l + cw, bottom, 10f * u);
|
||
fill.setColor(0xE6000000);
|
||
c.drawPath(path, fill);
|
||
line.setColor(dim);
|
||
line.setStrokeWidth(1.5f * u);
|
||
c.drawPath(path, line);
|
||
caption(c, cells[i][0], l + 16f * u, top + 20f * u, u, Paint.Align.LEFT);
|
||
text.setTypeface(thin);
|
||
text.setTextSize(30f * u);
|
||
text.setTextAlign(Paint.Align.RIGHT);
|
||
glowText(c, cells[i][1], l + cw - 16f * u, bottom - 10f * u, light, u);
|
||
}
|
||
}
|
||
|
||
// ---------- Light ----------
|
||
|
||
/** A rectangle with its top-left and bottom-right corners cut, into [path]. */
|
||
private void chamfer(float l, float t, float rr, float b, float cut) {
|
||
path.reset();
|
||
path.moveTo(l + cut, t);
|
||
path.lineTo(rr, t);
|
||
path.lineTo(rr, b - cut);
|
||
path.lineTo(rr - cut, b);
|
||
path.lineTo(l, b);
|
||
path.lineTo(l, t + cut);
|
||
path.close();
|
||
}
|
||
|
||
/** A line that glows: two wide faint strokes under a sharp one. */
|
||
private void glow(Canvas c, Path p, int colour, float width) {
|
||
line.setColor(AccentColor.withAlpha(colour, 0x18));
|
||
line.setStrokeWidth(width * 6f);
|
||
c.drawPath(p, line);
|
||
line.setColor(AccentColor.withAlpha(colour, 0x40));
|
||
line.setStrokeWidth(width * 3f);
|
||
c.drawPath(p, line);
|
||
line.setColor(colour);
|
||
line.setStrokeWidth(width);
|
||
c.drawPath(p, line);
|
||
}
|
||
|
||
private void glowLine(Canvas c, float x1, float y1, float x2, float y2, int colour, float width) {
|
||
path.reset();
|
||
path.moveTo(x1, y1);
|
||
path.lineTo(x2, y2);
|
||
glow(c, path, colour, width);
|
||
}
|
||
|
||
/** Text with a halo: a wide faint outline under the letters. */
|
||
private void glowText(Canvas c, String s, float x, float y, int colour, float u) {
|
||
text.setStyle(Paint.Style.STROKE);
|
||
text.setStrokeWidth(7f * u);
|
||
text.setColor(AccentColor.withAlpha(colour, 0x30));
|
||
c.drawText(s, x, y, text);
|
||
text.setStyle(Paint.Style.FILL);
|
||
text.setColor(colour);
|
||
c.drawText(s, x, y, text);
|
||
}
|
||
|
||
/** A small label in spaced capitals. */
|
||
private void caption(Canvas c, String s, float x, float y, float u, Paint.Align align) {
|
||
text.setTypeface(label);
|
||
text.setTextSize(15f * u);
|
||
text.setLetterSpacing(0.2f);
|
||
text.setTextAlign(align);
|
||
text.setStyle(Paint.Style.FILL);
|
||
text.setColor(main);
|
||
c.drawText(s, x, y, text);
|
||
text.setLetterSpacing(0f);
|
||
}
|
||
}
|