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Commit d97f6b4e authored by Dianne Hackborn's avatar Dianne Hackborn Committed by Android Git Automerger
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am 4907d1d5: am 0c6cbf41: Merge "Better compat mode part one: start scaling... 

am 4907d1d5: am 0c6cbf41: Merge "Better compat mode part one: start scaling windows." into honeycomb-mr2

* commit '4907d1d5e2c7d244b07579b8c52153df69754e85':
  Better compat mode part one: start scaling windows.
parents ae58e5ae 79cdb882

include/ui/Input.h

+2 −0
Original line number Diff line number Diff line
@@ -203,6 +203,8 @@ struct PointerCoords { 
    status_t setAxisValue(int32_t axis, float value);

    float* editAxisValue(int32_t axis);



    void scale(float scale);



#ifdef HAVE_ANDROID_OS

    status_t readFromParcel(Parcel* parcel);

    status_t writeToParcel(Parcel* parcel) const;

libs/ui/Input.cpp

+23 −24
Original line number Diff line number Diff line
@@ -298,6 +298,24 @@ float* PointerCoords::editAxisValue(int32_t axis) { 
    return &values[index];

}



static inline void scaleAxisValue(PointerCoords& c, int axis, float scaleFactor) {

    float* value = c.editAxisValue(axis);

    if (value) {

        *value *= scaleFactor;

    }

}



void PointerCoords::scale(float scaleFactor) {

    // No need to scale pressure or size since they are normalized.

    // No need to scale orientation since it is meaningless to do so.

    scaleAxisValue(*this, AMOTION_EVENT_AXIS_X, scaleFactor);

    scaleAxisValue(*this, AMOTION_EVENT_AXIS_Y, scaleFactor);

    scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOUCH_MAJOR, scaleFactor);

    scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOUCH_MINOR, scaleFactor);

    scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOOL_MAJOR, scaleFactor);

    scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOOL_MINOR, scaleFactor);

}



#ifdef HAVE_ANDROID_OS

status_t PointerCoords::readFromParcel(Parcel* parcel) {

    bits = parcel->readInt64();
@@ -411,11 +429,9 @@ float MotionEvent::getAxisValue(int32_t axis, size_t pointerIndex) const { 
    float value = getRawPointerCoords(pointerIndex)->getAxisValue(axis);

    switch (axis) {

    case AMOTION_EVENT_AXIS_X:

        value += mXOffset;

        break;

        return value + mXOffset;

    case AMOTION_EVENT_AXIS_Y:

        value += mYOffset;

        break;

        return value + mYOffset;

    }

    return value;

}
@@ -435,11 +451,9 @@ float MotionEvent::getHistoricalAxisValue(int32_t axis, size_t pointerIndex, 
    float value = getHistoricalRawPointerCoords(pointerIndex, historicalIndex)->getAxisValue(axis);

    switch (axis) {

    case AMOTION_EVENT_AXIS_X:

        value += mXOffset;

        break;

        return value + mXOffset;

    case AMOTION_EVENT_AXIS_Y:

        value += mYOffset;

        break;

        return value + mYOffset;

    }

    return value;

}
@@ -449,13 +463,6 @@ void MotionEvent::offsetLocation(float xOffset, float yOffset) { 
    mYOffset += yOffset;

}



static inline void scaleAxisValue(PointerCoords& c, int axis, float scaleFactor) {

    float* value = c.editAxisValue(axis);

    if (value) {

        *value *= scaleFactor;

    }

}



void MotionEvent::scale(float scaleFactor) {

    mXOffset *= scaleFactor;

    mYOffset *= scaleFactor;
@@ -464,15 +471,7 @@ void MotionEvent::scale(float scaleFactor) { 


    size_t numSamples = mSamplePointerCoords.size();

    for (size_t i = 0; i < numSamples; i++) {

        PointerCoords& c = mSamplePointerCoords.editItemAt(i);

        // No need to scale pressure or size since they are normalized.

        // No need to scale orientation since it is meaningless to do so.

        scaleAxisValue(c, AMOTION_EVENT_AXIS_X, scaleFactor);

        scaleAxisValue(c, AMOTION_EVENT_AXIS_Y, scaleFactor);

        scaleAxisValue(c, AMOTION_EVENT_AXIS_TOUCH_MAJOR, scaleFactor);

        scaleAxisValue(c, AMOTION_EVENT_AXIS_TOUCH_MINOR, scaleFactor);

        scaleAxisValue(c, AMOTION_EVENT_AXIS_TOOL_MAJOR, scaleFactor);

        scaleAxisValue(c, AMOTION_EVENT_AXIS_TOOL_MINOR, scaleFactor);

        mSamplePointerCoords.editItemAt(i).scale(scaleFactor);

    }

}