brouter/brouter-routing-app/src/main/java/btools/routingapp/BInstallerView.java
2022-01-07 13:03:01 +01:00

414 lines
12 KiB
Java

package btools.routingapp;
import android.app.Activity;
import android.content.Context;
import android.content.res.AssetManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.util.DisplayMetrics;
import android.view.MotionEvent;
import android.view.View;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import btools.router.RoutingHelper;
public class BInstallerView extends View {
public static final int MASK_SELECTED_RD5 = 1;
public static final int MASK_DELETED_RD5 = 2;
public static final int MASK_INSTALLED_RD5 = 4;
public static final int MASK_CURRENT_RD5 = 8;
private final File segmentDir;
private final Matrix mat;
private final Bitmap bmp;
private final float viewscale;
private final int[] tileStatus;
private final int imgwOrig;
private final int imghOrig;
private final float scaleOrig;
private final int imgw;
private final int imgh;
private final float[] testVector = new float[2];
private final Matrix matText;
Paint pnt_1 = new Paint();
Paint pnt_2 = new Paint();
Paint paint = new Paint();
int btnh = 40;
int btnw = 160;
float tx, ty;
private float lastDownX;
private float lastDownY;
private boolean tilesVisible = false;
private long availableSize;
private long totalSize = 0;
private long rd5Tiles = 0;
private long delTiles = 0;
private OnClickListener mOnClickListener;
public BInstallerView(Context context, AttributeSet attrs) {
super(context, attrs);
DisplayMetrics metrics = new DisplayMetrics();
((Activity) getContext()).getWindowManager().getDefaultDisplay().getMetrics(metrics);
imgwOrig = metrics.widthPixels;
imghOrig = metrics.heightPixels;
int im = Math.max(imgwOrig, imghOrig);
scaleOrig = im / 480.f;
matText = new Matrix();
matText.preScale(scaleOrig, scaleOrig);
imgw = (int) (imgwOrig / scaleOrig);
imgh = (int) (imghOrig / scaleOrig);
File baseDir = ConfigHelper.getBaseDir(getContext());
segmentDir = new File(baseDir, "brouter/segments4");
try {
AssetManager assetManager = getContext().getAssets();
InputStream istr = assetManager.open("world.png");
bmp = BitmapFactory.decodeStream(istr);
istr.close();
} catch (IOException io) {
throw new RuntimeException("cannot read world.png from assets");
}
tileStatus = new int[72 * 36];
float scaleX = imgwOrig / ((float) bmp.getWidth());
float scaley = imghOrig / ((float) bmp.getHeight());
viewscale = Math.min(scaleX, scaley);
mat = new Matrix();
mat.postScale(viewscale, viewscale);
}
public void setAvailableSize(long availableSize) {
this.availableSize = availableSize;
}
public void setTileStatus(int tileIndex, int tileMask) {
tileStatus[tileIndex] |= tileMask;
}
public void clearAllTilesStatus(int tileMask) {
for (int ix = 0; ix < 72; ix++) {
for (int iy = 0; iy < 36; iy++) {
int tileIndex = gridPos2Tileindex(ix, iy);
tileStatus[tileIndex] ^= tileStatus[tileIndex] & tileMask;
}
}
invalidate();
}
public ArrayList<Integer> getSelectedTiles(int tileMask) {
ArrayList<Integer> selectedTiles = new ArrayList<>();
for (int ix = 0; ix < 72; ix++) {
for (int iy = 0; iy < 36; iy++) {
int tileIndex = gridPos2Tileindex(ix, iy);
if ((tileStatus[tileIndex] & tileMask) != 0 && BInstallerSizes.getRd5Size(tileIndex) > 0) {
selectedTiles.add(tileIndex);
}
}
}
return selectedTiles;
}
@Override
public void setOnClickListener(OnClickListener listener) {
mOnClickListener = listener;
}
private int gridPos2Tileindex(int ix, int iy) {
return (35 - iy) * 72 + (ix >= 70 ? ix - 70 : ix + 2);
}
private int tileIndex(float x, float y) {
int ix = (int) (72.f * x / bmp.getWidth());
int iy = (int) (36.f * y / bmp.getHeight());
if (ix >= 0 && ix < 72 && iy >= 0 && iy < 36) return gridPos2Tileindex(ix, iy);
return -1;
}
// get back the current image scale
private float currentScale() {
testVector[1] = 1.f;
mat.mapVectors(testVector);
return testVector[1] / viewscale;
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
}
@Override
protected void onDraw(Canvas canvas) {
canvas.setMatrix(mat);
canvas.drawBitmap(bmp, 0, 0, null);
// draw 5*5 lattice starting at scale=3
int iw = bmp.getWidth();
int ih = bmp.getHeight();
float fw = iw / 72.f;
float fh = ih / 36.f;
if (tilesVisible) {
pnt_1.setColor(Color.GREEN);
pnt_1.setStyle(Paint.Style.STROKE);
for (int ix = 0; ix < 72; ix++) {
for (int iy = 0; iy < 36; iy++) {
int tidx = gridPos2Tileindex(ix, iy);
int tilesize = BInstallerSizes.getRd5Size(tidx);
if (tilesize > 0) {
canvas.drawRect(fw * ix, fh * (iy + 1), fw * (ix + 1), fh * iy, pnt_1);
}
}
}
}
rd5Tiles = 0;
delTiles = 0;
totalSize = 0;
int mask2 = MASK_SELECTED_RD5 | MASK_DELETED_RD5 | MASK_INSTALLED_RD5;
int mask3 = mask2 | MASK_CURRENT_RD5;
pnt_2.setStyle(Paint.Style.STROKE);
pnt_2.setColor(Color.GRAY);
pnt_2.setStrokeWidth(1);
drawSelectedTiles(canvas, pnt_2, fw, fh, MASK_INSTALLED_RD5, mask3, false, false, tilesVisible);
pnt_2.setColor(Color.BLUE);
pnt_2.setStrokeWidth(1);
drawSelectedTiles(canvas, pnt_2, fw, fh, MASK_INSTALLED_RD5 | MASK_CURRENT_RD5, mask3, false, false, tilesVisible);
pnt_2.setColor(Color.GREEN);
pnt_2.setStrokeWidth(2);
drawSelectedTiles(canvas, pnt_2, fw, fh, MASK_SELECTED_RD5, mask2, true, false, tilesVisible);
pnt_2.setColor(Color.YELLOW);
pnt_2.setStrokeWidth(2);
drawSelectedTiles(canvas, pnt_2, fw, fh, MASK_SELECTED_RD5 | MASK_INSTALLED_RD5, mask2, true, false, tilesVisible);
pnt_2.setColor(Color.RED);
pnt_2.setStrokeWidth(2);
drawSelectedTiles(canvas, pnt_2, fw, fh, MASK_DELETED_RD5 | MASK_INSTALLED_RD5, mask2, false, true, tilesVisible);
canvas.setMatrix(matText);
paint.setColor(Color.RED);
long mb = 1024 * 1024;
if (!this.tilesVisible) {
paint.setTextSize(35);
canvas.drawText("Touch region to zoom in!", 30, (imgh / 3) * 2, paint);
}
paint.setTextSize(20);
String totmb = ((totalSize + mb - 1) / mb) + " MB";
String freemb = availableSize >= 0 ? ((availableSize + mb - 1) / mb) + " MB" : "?";
canvas.drawText("Selected segments=" + rd5Tiles, 10, 25, paint);
canvas.drawText("Size=" + totmb + " Free=" + freemb, 10, 45, paint);
String btnText = null;
if (delTiles > 0) btnText = "Delete " + delTiles + " tiles";
else if (rd5Tiles > 0) btnText = "Start Download";
else if (this.tilesVisible &&
rd5Tiles == 0 &&
RoutingHelper.hasDirectoryAnyDatafiles(segmentDir)) btnText = "Update all";
if (btnText != null) {
paint.setStyle(Paint.Style.STROKE);
canvas.drawRect(imgw - btnw, imgh - btnh, imgw - 2, imgh - 2, paint);
paint.setStyle(Paint.Style.FILL);
canvas.drawText(btnText, imgw - btnw + 5, imgh - 10, paint);
}
}
private void drawSelectedTiles(Canvas canvas, Paint pnt, float fw, float fh, int status, int mask, boolean doCount, boolean cntDel, boolean doDraw) {
for (int ix = 0; ix < 72; ix++)
for (int iy = 0; iy < 36; iy++) {
int tidx = gridPos2Tileindex(ix, iy);
if ((tileStatus[tidx] & mask) == status) {
int tilesize = BInstallerSizes.getRd5Size(tidx);
if (tilesize > 0) {
if (doCount) {
rd5Tiles++;
totalSize += BInstallerSizes.getRd5Size(tidx);
}
if (cntDel) {
delTiles++;
totalSize += BInstallerSizes.getRd5Size(tidx);
}
if (!doDraw)
continue;
// draw cross
canvas.drawLine(fw * ix, fh * iy, fw * (ix + 1), fh * (iy + 1), pnt);
canvas.drawLine(fw * ix, fh * (iy + 1), fw * (ix + 1), fh * iy, pnt);
// draw frame
canvas.drawRect(fw * ix, fh * (iy + 1), fw * (ix + 1), fh * iy, pnt);
}
}
}
}
@Override
public boolean onTouchEvent(MotionEvent event) {
// get masked (not specific to a pointer) action
int maskedAction = event.getActionMasked();
switch (maskedAction) {
case MotionEvent.ACTION_DOWN:
case MotionEvent.ACTION_POINTER_DOWN: {
lastDownX = event.getX();
lastDownY = event.getY();
break;
}
case MotionEvent.ACTION_MOVE: { // a pointer was moved
int np = event.getPointerCount();
int nh = event.getHistorySize();
if (nh == 0) break;
float x0 = event.getX(0);
float y0 = event.getY(0);
float hx0 = event.getHistoricalX(0, 0);
float hy0 = event.getHistoricalY(0, 0);
if (np > 1) // multi-touch
{
float x1 = event.getX(1);
float y1 = event.getY(1);
float hx1 = event.getHistoricalX(1, 0);
float hy1 = event.getHistoricalY(1, 0);
float r = (float) Math.sqrt((x1 - x0) * (x1 - x0) + (y1 - y0) * (y1 - y0));
float hr = (float) Math.sqrt((hx1 - hx0) * (hx1 - hx0) + (hy1 - hy0) * (hy1 - hy0));
if (hr > 0.) {
float ratio = r / hr;
float mx = (x1 + x0) / 2.f;
float my = (y1 + y0) / 2.f;
float scale = currentScale();
float newscale = scale * ratio;
if (newscale > 10.f) ratio *= (10.f / newscale);
if (newscale < 0.5f) ratio *= (0.5f / newscale);
mat.postScale(ratio, ratio, mx, my);
mat.postScale(ratio, ratio, mx, my);
boolean tilesv = currentScale() >= 3.f;
if (tilesVisible && !tilesv) {
clearAllTilesStatus(MASK_SELECTED_RD5 | MASK_DELETED_RD5);
}
tilesVisible = tilesv;
}
break;
}
mat.postTranslate(x0 - hx0, y0 - hy0);
break;
}
case MotionEvent.ACTION_UP:
long downTime = event.getEventTime() - event.getDownTime();
if (downTime < 5 || downTime > 500) {
break;
}
if (Math.abs(lastDownX - event.getX()) > 10 || Math.abs(lastDownY - event.getY()) > 10) {
break;
}
// download button?
if ((delTiles > 0 || rd5Tiles >= 0) && event.getX() > imgwOrig - btnw * scaleOrig && event.getY() > imghOrig - btnh * scaleOrig) {
if (rd5Tiles == 0) {
for (int ix = 0; ix < 72; ix++) {
for (int iy = 0; iy < 36; iy++) {
int tidx = gridPos2Tileindex(ix, iy);
if (tidx != -1) {
if ((tileStatus[tidx] & MASK_INSTALLED_RD5) != 0) {
tileStatus[tidx] |= MASK_SELECTED_RD5;
}
}
}
}
}
if (mOnClickListener != null) {
mOnClickListener.onClick(null);
}
invalidate();
break;
}
if (!tilesVisible) {
float scale = currentScale();
if (scale > 0f && scale < 5f) {
float ratio = 5f / scale;
mat.postScale(ratio, ratio, event.getX(), event.getY());
tilesVisible = true;
}
break;
}
Matrix imat = new Matrix();
if (mat.invert(imat)) {
float[] touchpoint = new float[2];
touchpoint[0] = event.getX();
touchpoint[1] = event.getY();
imat.mapPoints(touchpoint);
int tidx = tileIndex(touchpoint[0], touchpoint[1]);
if (tidx != -1) {
if ((tileStatus[tidx] & MASK_SELECTED_RD5) != 0) {
tileStatus[tidx] ^= MASK_SELECTED_RD5;
if ((tileStatus[tidx] & MASK_INSTALLED_RD5) != 0) {
tileStatus[tidx] |= MASK_DELETED_RD5;
}
} else if ((tileStatus[tidx] & MASK_DELETED_RD5) != 0) {
tileStatus[tidx] ^= MASK_DELETED_RD5;
} else {
tileStatus[tidx] ^= MASK_SELECTED_RD5;
}
}
tx = touchpoint[0];
ty = touchpoint[1];
}
break;
case MotionEvent.ACTION_POINTER_UP:
case MotionEvent.ACTION_CANCEL: {
// TODO use data
break;
}
}
invalidate();
return true;
}
}