Merge "Add Pointer Location to the window manager."
This commit is contained in:
Dianne Hackborn
Android (Google) Code Review
commit
cc523d1b53
333
common/java/com/android/common/ui/PointerLocationView.java
Normal file
333
common/java/com/android/common/ui/PointerLocationView.java
Normal file
@ -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;
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user