Add Pointer Location to the window manager.
The window manager now has pointer location built into it.
Viva la touch!
diff --git a/common/java/com/android/common/ui/PointerLocationView.java b/common/java/com/android/common/ui/PointerLocationView.java
new file mode 100644
index 0000000..e83c5ae
--- /dev/null
+++ b/common/java/com/android/common/ui/PointerLocationView.java
@@ -0,0 +1,333 @@
+package com.android.common.ui;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.graphics.Paint.FontMetricsInt;
+import android.util.Log;
+import android.view.MotionEvent;
+import android.view.VelocityTracker;
+import android.view.View;
+import android.view.ViewConfiguration;
+
+import java.util.ArrayList;
+
+public class PointerLocationView extends View {
+ public static class PointerState {
+ private final ArrayList<Float> mXs = new ArrayList<Float>();
+ private final ArrayList<Float> mYs = new ArrayList<Float>();
+ private boolean mCurDown;
+ private int mCurX;
+ private int mCurY;
+ private float mCurPressure;
+ private float mCurSize;
+ private int mCurWidth;
+ private VelocityTracker mVelocity;
+ }
+
+ private final ViewConfiguration mVC;
+ private final Paint mTextPaint;
+ private final Paint mTextBackgroundPaint;
+ private final Paint mTextLevelPaint;
+ private final Paint mPaint;
+ private final Paint mTargetPaint;
+ private final Paint mPathPaint;
+ private final FontMetricsInt mTextMetrics = new FontMetricsInt();
+ private int mHeaderBottom;
+ private boolean mCurDown;
+ private int mCurNumPointers;
+ private int mMaxNumPointers;
+ private final ArrayList<PointerState> mPointers
+ = new ArrayList<PointerState>();
+
+ private boolean mPrintCoords = true;
+
+ public PointerLocationView(Context c) {
+ super(c);
+ mVC = ViewConfiguration.get(c);
+ mTextPaint = new Paint();
+ mTextPaint.setAntiAlias(true);
+ mTextPaint.setTextSize(10
+ * getResources().getDisplayMetrics().density);
+ mTextPaint.setARGB(255, 0, 0, 0);
+ mTextBackgroundPaint = new Paint();
+ mTextBackgroundPaint.setAntiAlias(false);
+ mTextBackgroundPaint.setARGB(128, 255, 255, 255);
+ mTextLevelPaint = new Paint();
+ mTextLevelPaint.setAntiAlias(false);
+ mTextLevelPaint.setARGB(192, 255, 0, 0);
+ mPaint = new Paint();
+ mPaint.setAntiAlias(true);
+ mPaint.setARGB(255, 255, 255, 255);
+ mPaint.setStyle(Paint.Style.STROKE);
+ mPaint.setStrokeWidth(2);
+ mTargetPaint = new Paint();
+ mTargetPaint.setAntiAlias(false);
+ mTargetPaint.setARGB(255, 0, 0, 192);
+ mPathPaint = new Paint();
+ mPathPaint.setAntiAlias(false);
+ mPathPaint.setARGB(255, 0, 96, 255);
+ mPaint.setStyle(Paint.Style.STROKE);
+ mPaint.setStrokeWidth(1);
+
+ PointerState ps = new PointerState();
+ ps.mVelocity = VelocityTracker.obtain();
+ mPointers.add(ps);
+ }
+
+ public void setPrintCoords(boolean state) {
+ mPrintCoords = state;
+ }
+
+ @Override
+ protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+ super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+ mTextPaint.getFontMetricsInt(mTextMetrics);
+ mHeaderBottom = -mTextMetrics.ascent+mTextMetrics.descent+2;
+ if (false) {
+ Log.i("foo", "Metrics: ascent=" + mTextMetrics.ascent
+ + " descent=" + mTextMetrics.descent
+ + " leading=" + mTextMetrics.leading
+ + " top=" + mTextMetrics.top
+ + " bottom=" + mTextMetrics.bottom);
+ }
+ }
+
+ @Override
+ protected void onDraw(Canvas canvas) {
+ synchronized (mPointers) {
+ final int w = getWidth();
+ final int itemW = w/7;
+ final int base = -mTextMetrics.ascent+1;
+ final int bottom = mHeaderBottom;
+
+ final int NP = mPointers.size();
+
+ if (NP > 0) {
+ final PointerState ps = mPointers.get(0);
+ canvas.drawRect(0, 0, itemW-1, bottom,mTextBackgroundPaint);
+ canvas.drawText("P: " + mCurNumPointers + " / " + mMaxNumPointers,
+ 1, base, mTextPaint);
+
+ final int N = ps.mXs.size();
+ if ((mCurDown && ps.mCurDown) || N == 0) {
+ canvas.drawRect(itemW, 0, (itemW * 2) - 1, bottom, mTextBackgroundPaint);
+ canvas.drawText("X: " + ps.mCurX, 1 + itemW, base, mTextPaint);
+ canvas.drawRect(itemW * 2, 0, (itemW * 3) - 1, bottom, mTextBackgroundPaint);
+ canvas.drawText("Y: " + ps.mCurY, 1 + itemW * 2, base, mTextPaint);
+ } else {
+ float dx = ps.mXs.get(N-1) - ps.mXs.get(0);
+ float dy = ps.mYs.get(N-1) - ps.mYs.get(0);
+ canvas.drawRect(itemW, 0, (itemW * 2) - 1, bottom,
+ Math.abs(dx) < mVC.getScaledTouchSlop()
+ ? mTextBackgroundPaint : mTextLevelPaint);
+ canvas.drawText("dX: " + String.format("%.1f", dx), 1 + itemW, base, mTextPaint);
+ canvas.drawRect(itemW * 2, 0, (itemW * 3) - 1, bottom,
+ Math.abs(dy) < mVC.getScaledTouchSlop()
+ ? mTextBackgroundPaint : mTextLevelPaint);
+ canvas.drawText("dY: " + String.format("%.1f", dy), 1 + itemW * 2, base, mTextPaint);
+ }
+
+ canvas.drawRect(itemW * 3, 0, (itemW * 4) - 1, bottom, mTextBackgroundPaint);
+ int velocity = ps.mVelocity == null ? 0 : (int) (ps.mVelocity.getXVelocity() * 1000);
+ canvas.drawText("Xv: " + velocity, 1 + itemW * 3, base, mTextPaint);
+
+ canvas.drawRect(itemW * 4, 0, (itemW * 5) - 1, bottom, mTextBackgroundPaint);
+ velocity = ps.mVelocity == null ? 0 : (int) (ps.mVelocity.getYVelocity() * 1000);
+ canvas.drawText("Yv: " + velocity, 1 + itemW * 4, base, mTextPaint);
+
+ canvas.drawRect(itemW * 5, 0, (itemW * 6) - 1, bottom, mTextBackgroundPaint);
+ canvas.drawRect(itemW * 5, 0, (itemW * 5) + (ps.mCurPressure * itemW) - 1,
+ bottom, mTextLevelPaint);
+ canvas.drawText("Prs: " + String.format("%.2f", ps.mCurPressure), 1 + itemW * 5,
+ base, mTextPaint);
+
+ canvas.drawRect(itemW * 6, 0, w, bottom, mTextBackgroundPaint);
+ canvas.drawRect(itemW * 6, 0, (itemW * 6) + (ps.mCurSize * itemW) - 1,
+ bottom, mTextLevelPaint);
+ canvas.drawText("Size: " + String.format("%.2f", ps.mCurSize), 1 + itemW * 6,
+ base, mTextPaint);
+ }
+
+ for (int p=0; p<NP; p++) {
+ final PointerState ps = mPointers.get(p);
+
+ if (mCurDown && ps.mCurDown) {
+ canvas.drawLine(0, (int)ps.mCurY, getWidth(), (int)ps.mCurY, mTargetPaint);
+ canvas.drawLine((int)ps.mCurX, 0, (int)ps.mCurX, getHeight(), mTargetPaint);
+ int pressureLevel = (int)(ps.mCurPressure*255);
+ mPaint.setARGB(255, pressureLevel, 128, 255-pressureLevel);
+ canvas.drawPoint(ps.mCurX, ps.mCurY, mPaint);
+ canvas.drawCircle(ps.mCurX, ps.mCurY, ps.mCurWidth, mPaint);
+ }
+ }
+
+ for (int p=0; p<NP; p++) {
+ final PointerState ps = mPointers.get(p);
+
+ final int N = ps.mXs.size();
+ float lastX=0, lastY=0;
+ boolean haveLast = false;
+ boolean drawn = false;
+ mPaint.setARGB(255, 128, 255, 255);
+ for (int i=0; i<N; i++) {
+ float x = ps.mXs.get(i);
+ float y = ps.mYs.get(i);
+ if (Float.isNaN(x)) {
+ haveLast = false;
+ continue;
+ }
+ if (haveLast) {
+ canvas.drawLine(lastX, lastY, x, y, mPathPaint);
+ canvas.drawPoint(lastX, lastY, mPaint);
+ drawn = true;
+ }
+ lastX = x;
+ lastY = y;
+ haveLast = true;
+ }
+
+ if (drawn) {
+ if (ps.mVelocity != null) {
+ mPaint.setARGB(255, 255, 64, 128);
+ float xVel = ps.mVelocity.getXVelocity() * (1000/60);
+ float yVel = ps.mVelocity.getYVelocity() * (1000/60);
+ canvas.drawLine(lastX, lastY, lastX+xVel, lastY+yVel, mPaint);
+ } else {
+ canvas.drawPoint(lastX, lastY, mPaint);
+ }
+ }
+ }
+ }
+ }
+
+ public void addTouchEvent(MotionEvent event) {
+ synchronized (mPointers) {
+ int action = event.getAction();
+
+ //Log.i("Pointer", "Motion: action=0x" + Integer.toHexString(action)
+ // + " pointers=" + event.getPointerCount());
+
+ int NP = mPointers.size();
+
+ //mRect.set(0, 0, getWidth(), mHeaderBottom+1);
+ //invalidate(mRect);
+ //if (mCurDown) {
+ // mRect.set(mCurX-mCurWidth-3, mCurY-mCurWidth-3,
+ // mCurX+mCurWidth+3, mCurY+mCurWidth+3);
+ //} else {
+ // mRect.setEmpty();
+ //}
+ if (action == MotionEvent.ACTION_DOWN) {
+ for (int p=0; p<NP; p++) {
+ final PointerState ps = mPointers.get(p);
+ ps.mXs.clear();
+ ps.mYs.clear();
+ ps.mVelocity = VelocityTracker.obtain();
+ ps.mCurDown = false;
+ }
+ mPointers.get(0).mCurDown = true;
+ mMaxNumPointers = 0;
+ if (mPrintCoords) {
+ Log.i("Pointer", "Pointer 1: DOWN");
+ }
+ }
+
+ if ((action&MotionEvent.ACTION_MASK) == MotionEvent.ACTION_POINTER_DOWN) {
+ final int id = (action&MotionEvent.ACTION_POINTER_ID_MASK)
+ >> MotionEvent.ACTION_POINTER_ID_SHIFT;
+ while (NP <= id) {
+ PointerState ps = new PointerState();
+ ps.mVelocity = VelocityTracker.obtain();
+ mPointers.add(ps);
+ NP++;
+ }
+ final PointerState ps = mPointers.get(id);
+ ps.mVelocity = VelocityTracker.obtain();
+ ps.mCurDown = true;
+ if (mPrintCoords) {
+ Log.i("Pointer", "Pointer " + (id+1) + ": DOWN");
+ }
+ }
+
+ final int NI = event.getPointerCount();
+
+ mCurDown = action != MotionEvent.ACTION_UP
+ && action != MotionEvent.ACTION_CANCEL;
+ mCurNumPointers = mCurDown ? NI : 0;
+ if (mMaxNumPointers < mCurNumPointers) {
+ mMaxNumPointers = mCurNumPointers;
+ }
+
+ for (int i=0; i<NI; i++) {
+ final PointerState ps = mPointers.get(event.getPointerId(i));
+ ps.mVelocity.addMovement(event);
+ ps.mVelocity.computeCurrentVelocity(1);
+ final int N = event.getHistorySize();
+ for (int j=0; j<N; j++) {
+ if (mPrintCoords) {
+ Log.i("Pointer", "Pointer " + (i+1) + ": ("
+ + event.getHistoricalX(i, j)
+ + ", " + event.getHistoricalY(i, j) + ")"
+ + " Prs=" + event.getHistoricalPressure(i, j)
+ + " Size=" + event.getHistoricalSize(i, j));
+ }
+ ps.mXs.add(event.getHistoricalX(i, j));
+ ps.mYs.add(event.getHistoricalY(i, j));
+ }
+ if (mPrintCoords) {
+ Log.i("Pointer", "Pointer " + (i+1) + ": ("
+ + event.getX(i) + ", " + event.getY(i) + ")"
+ + " Prs=" + event.getPressure(i)
+ + " Size=" + event.getSize(i));
+ }
+ ps.mXs.add(event.getX(i));
+ ps.mYs.add(event.getY(i));
+ ps.mCurX = (int)event.getX(i);
+ ps.mCurY = (int)event.getY(i);
+ //Log.i("Pointer", "Pointer #" + p + ": (" + ps.mCurX
+ // + "," + ps.mCurY + ")");
+ ps.mCurPressure = event.getPressure(i);
+ ps.mCurSize = event.getSize(i);
+ ps.mCurWidth = (int)(ps.mCurSize*(getWidth()/3));
+ }
+
+ if ((action&MotionEvent.ACTION_MASK) == MotionEvent.ACTION_POINTER_UP) {
+ final int id = (action&MotionEvent.ACTION_POINTER_ID_MASK)
+ >> MotionEvent.ACTION_POINTER_ID_SHIFT;
+ final PointerState ps = mPointers.get(id);
+ ps.mXs.add(Float.NaN);
+ ps.mYs.add(Float.NaN);
+ ps.mCurDown = false;
+ if (mPrintCoords) {
+ Log.i("Pointer", "Pointer " + (id+1) + ": UP");
+ }
+ }
+
+ if (action == MotionEvent.ACTION_UP) {
+ for (int i=0; i<NI; i++) {
+ final PointerState ps = mPointers.get(event.getPointerId(i));
+ if (ps.mCurDown) {
+ ps.mCurDown = false;
+ if (mPrintCoords) {
+ Log.i("Pointer", "Pointer " + (i+1) + ": UP");
+ }
+ }
+ }
+ }
+
+ //if (mCurDown) {
+ // mRect.union(mCurX-mCurWidth-3, mCurY-mCurWidth-3,
+ // mCurX+mCurWidth+3, mCurY+mCurWidth+3);
+ //}
+ //invalidate(mRect);
+ postInvalidate();
+ }
+ }
+
+ @Override
+ public boolean onTouchEvent(MotionEvent event) {
+ addTouchEvent(event);
+ return true;
+ }
+}