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Merge "Add support for detecting finger orientation." into honeycomb

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This commit is contained in:
Jeff Brown
2011-01-14 19:18:16 -08:00
committed by Android (Google) Code Review
parent 0a26f3ce96 517bb4c859
commit 7a1c32e719
3 changed files with 34 additions and 1 deletions
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11
core/java/com/android/internal/widget/PointerLocationView.java
View File

@@ -300,6 +300,17 @@ public class PointerLocationView extends View {
mPaint.setARGB(255, pressureLevel, 128, 255 - pressureLevel);
drawOval(canvas, ps.mCoords.x, ps.mCoords.y, ps.mCoords.toolMajor,
ps.mCoords.toolMinor, ps.mCoords.orientation, mPaint);
// Draw the orientation arrow.
mPaint.setARGB(255, pressureLevel, 255, 0);
float orientationVectorX = (float) (Math.sin(-ps.mCoords.orientation)
* ps.mCoords.toolMajor * 0.7);
float orientationVectorY = (float) (Math.cos(-ps.mCoords.orientation)
* ps.mCoords.toolMajor * 0.7);
canvas.drawLine(
ps.mCoords.x - orientationVectorX, ps.mCoords.y - orientationVectorY,
ps.mCoords.x + orientationVectorX, ps.mCoords.y + orientationVectorY,
mPaint);
}
}
}

23
services/input/InputReader.cpp
View File

@@ -80,6 +80,10 @@ inline static float pythag(float x, float y) {
return sqrtf(x * x + y * y);
}
inline static int32_t signExtendNybble(int32_t value) {
return value >= 8 ? value - 16 : value;
}
static inline const char* toString(bool value) {
return value ? "true" : "false";
}
@@ -1917,6 +1921,8 @@ void TouchInputMapper::parseCalibration() {
out.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_NONE;
} else if (orientationCalibrationString == "interpolated") {
out.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_INTERPOLATED;
} else if (orientationCalibrationString == "vector") {
out.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_VECTOR;
} else if (orientationCalibrationString != "default") {
LOGW("Invalid value for touch.orientation.calibration: '%s'",
orientationCalibrationString.string());
@@ -2152,6 +2158,9 @@ void TouchInputMapper::dumpCalibration(String8& dump) {
case Calibration::ORIENTATION_CALIBRATION_INTERPOLATED:
dump.append(INDENT4 "touch.orientation.calibration: interpolated\n");
break;
case Calibration::ORIENTATION_CALIBRATION_VECTOR:
dump.append(INDENT4 "touch.orientation.calibration: vector\n");
break;
default:
assert(false);
}
@@ -2567,6 +2576,19 @@ void TouchInputMapper::dispatchTouch(nsecs_t when, uint32_t policyFlags,
case Calibration::ORIENTATION_CALIBRATION_INTERPOLATED:
orientation = in.orientation * mLocked.orientationScale;
break;
case Calibration::ORIENTATION_CALIBRATION_VECTOR: {
int32_t c1 = signExtendNybble((in.orientation & 0xf0) >> 4);
int32_t c2 = signExtendNybble(in.orientation & 0x0f);
if (c1 != 0 || c2 != 0) {
orientation = atan2f(c1, c2) * 0.5f;
float minorAxisScale = (16.0f - pythag(c1, c2)) / 16.0f;
toolMinor *= minorAxisScale;
touchMinor *= minorAxisScale;
} else {
orientation = 0;
}
break;
}
default:
orientation = 0;
}
@@ -2586,7 +2608,6 @@ void TouchInputMapper::dispatchTouch(nsecs_t when, uint32_t policyFlags,
case DISPLAY_ORIENTATION_180: {
x = mLocked.surfaceWidth - x;
y = mLocked.surfaceHeight - y;
orientation = - orientation;
break;
}
case DISPLAY_ORIENTATION_270: {

1
services/input/InputReader.h
View File

@@ -680,6 +680,7 @@ protected:
ORIENTATION_CALIBRATION_DEFAULT,
ORIENTATION_CALIBRATION_NONE,
ORIENTATION_CALIBRATION_INTERPOLATED,
ORIENTATION_CALIBRATION_VECTOR,
};
OrientationCalibration orientationCalibration;