nyancrimew
/
LatinIME
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Remove unused gesture preview trail code 

Change-Id: I2aa77675628a4b1655b30852c950f5daae6f0a92
main
Tadashi G. Takaoka 2013-05-07 14:27:34 +09:00
parent c758844665
commit 4ddf1e47a7
1 changed files with 7 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
java/src/com/android/inputmethod/keyboard/internal/GestureStrokeWithPreviewPoints.java
View File

@ -21,8 +21,6 @@ import com.android.inputmethod.latin.ResizableIntArray;
public final class GestureStrokeWithPreviewPoints extends GestureStroke {
public static final int PREVIEW_CAPACITY = 256;
private static final boolean ENABLE_INTERPOLATION = true;
private final ResizableIntArray mPreviewEventTimes = new ResizableIntArray(PREVIEW_CAPACITY);
private final ResizableIntArray mPreviewXCoordinates = new ResizableIntArray(PREVIEW_CAPACITY);
private final ResizableIntArray mPreviewYCoordinates = new ResizableIntArray(PREVIEW_CAPACITY);
@ -32,18 +30,15 @@ public final class GestureStrokeWithPreviewPoints extends GestureStroke {
private final HermiteInterpolator mInterpolator = new HermiteInterpolator();
private int mLastInterpolatedPreviewIndex;
private int mMinPreviewSamplingDistanceSquared;
private int mLastX;
private int mLastY;
private double mMinPreviewSamplingDistance;
private double mDistanceFromLastSample;
// TODO: Move these constants to resource.
// The minimum linear distance between sample points for preview in keyWidth unit.
private static final float MIN_PREVIEW_SAMPLING_RATIO_TO_KEY_WIDTH = 0.1f;
// The minimum trail distance between sample points for preview in keyWidth unit when using
// interpolation.
private static final float MIN_PREVIEW_SAMPLING_RATIO_TO_KEY_WIDTH_WITH_INTERPOLATION = 0.2f;
private static final float MIN_PREVIEW_SAMPLING_RATIO_TO_KEY_WIDTH = 0.2f;
// The angular threshold to use interpolation in radian. PI/12 is 15 degree.
private static final double INTERPOLATION_ANGULAR_THRESHOLD = Math.PI / 12.0d;
private static final int MAX_INTERPOLATION_PARTITION = 4;
@ -70,31 +65,16 @@ public final class GestureStrokeWithPreviewPoints extends GestureStroke {
@Override
public void setKeyboardGeometry(final int keyWidth, final int keyboardHeight) {
super.setKeyboardGeometry(keyWidth, keyboardHeight);
final float samplingRatioToKeyWidth = ENABLE_INTERPOLATION
? MIN_PREVIEW_SAMPLING_RATIO_TO_KEY_WIDTH_WITH_INTERPOLATION
: MIN_PREVIEW_SAMPLING_RATIO_TO_KEY_WIDTH;
final float samplingRatioToKeyWidth = MIN_PREVIEW_SAMPLING_RATIO_TO_KEY_WIDTH;
mMinPreviewSamplingDistance = keyWidth * samplingRatioToKeyWidth;
mMinPreviewSamplingDistanceSquared = (int)(
mMinPreviewSamplingDistance * mMinPreviewSamplingDistance);
}
private boolean needsSampling(final int x, final int y, final boolean isMajorEvent) {
if (ENABLE_INTERPOLATION) {
mDistanceFromLastSample += Math.hypot(x - mLastX, y - mLastY);
mLastX = x;
mLastY = y;
if (mDistanceFromLastSample >= mMinPreviewSamplingDistance) {
mDistanceFromLastSample = 0.0d;
return true;
}
return false;
}
final int dx = x - mLastX;
final int dy = y - mLastY;
if (isMajorEvent || dx * dx + dy * dy >= mMinPreviewSamplingDistanceSquared) {
mLastX = x;
mLastY = y;
mDistanceFromLastSample += Math.hypot(x - mLastX, y - mLastY);
mLastX = x;
mLastY = y;
if (mDistanceFromLastSample >= mMinPreviewSamplingDistance) {
mDistanceFromLastSample = 0.0d;
return true;
}
return false;
@ -140,9 +120,6 @@ public final class GestureStrokeWithPreviewPoints extends GestureStroke {
public int interpolateStrokeAndReturnStartIndexOfLastSegment(final int lastInterpolatedIndex,
final ResizableIntArray eventTimes, final ResizableIntArray xCoords,
final ResizableIntArray yCoords) {
if (!ENABLE_INTERPOLATION) {
return lastInterpolatedIndex;
}
final int size = mPreviewEventTimes.getLength();
final int[] pt = mPreviewEventTimes.getPrimitiveArray();
final int[] px = mPreviewXCoordinates.getPrimitiveArray();