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Cleanup ProximityInfo.calulateSweetSpot 

Change-Id: I98238359dffd76a620d3b0e73b3b22dd82c56c93
main
Tadashi G. Takaoka 2011-12-16 13:53:34 +09:00
parent 8950f259b1
commit 6cb72b0f36
1 changed files with 31 additions and 38 deletions
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69
java/src/com/android/inputmethod/keyboard/ProximityInfo.java
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@ -104,6 +104,20 @@ public class ProximityInfo {
final int[] keyWidths = new int[keyCount];
final int[] keyHeights = new int[keyCount];
final int[] keyCharCodes = new int[keyCount];
final float[] sweetSpotCenterXs;
final float[] sweetSpotCenterYs;
final float[] sweetSpotRadii;
final boolean calculateSweetSpotParams;
if (touchPositionCorrection != null && touchPositionCorrection.isValid()) {
sweetSpotCenterXs = new float[keyCount];
sweetSpotCenterYs = new float[keyCount];
sweetSpotRadii = new float[keyCount];
calculateSweetSpotParams = true;
} else {
sweetSpotCenterXs = sweetSpotCenterYs = sweetSpotRadii = null;
calculateSweetSpotParams = false;
}
for (int i = 0; i < keyCount; ++i) {
final Key key = keys.get(i);
keyXCoordinates[i] = key.mX;
@ -111,18 +125,23 @@ public class ProximityInfo {
keyWidths[i] = key.mWidth;
keyHeights[i] = key.mHeight;
keyCharCodes[i] = key.mCode;
}
float[] sweetSpotCenterXs = null;
float[] sweetSpotCenterYs = null;
float[] sweetSpotRadii = null;
if (touchPositionCorrection != null && touchPositionCorrection.isValid()) {
sweetSpotCenterXs = new float[keyCount];
sweetSpotCenterYs = new float[keyCount];
sweetSpotRadii = new float[keyCount];
calculateSweetSpot(keys, touchPositionCorrection,
sweetSpotCenterXs, sweetSpotCenterYs, sweetSpotRadii);
if (calculateSweetSpotParams) {
final Rect hitBox = key.mHitBox;
final int row = hitBox.top / mKeyHeight;
if (row < touchPositionCorrection.mRadii.length) {
final float hitBoxCenterX = (hitBox.left + hitBox.right) * 0.5f;
final float hitBoxCenterY = (hitBox.top + hitBox.bottom) * 0.5f;
final float hitBoxWidth = hitBox.right - hitBox.left;
final float hitBoxHeight = hitBox.bottom - hitBox.top;
final float x = touchPositionCorrection.mXs[row];
final float y = touchPositionCorrection.mYs[row];
final float radius = touchPositionCorrection.mRadii[row];
sweetSpotCenterXs[i] = hitBoxCenterX + x * hitBoxWidth;
sweetSpotCenterYs[i] = hitBoxCenterY + y * hitBoxHeight;
sweetSpotRadii[i] = radius * (float)Math.sqrt(
hitBoxWidth * hitBoxWidth + hitBoxHeight * hitBoxHeight);
}
}
}
mNativeProximityInfo = setProximityInfoNative(MAX_PROXIMITY_CHARS_SIZE,
@ -131,32 +150,6 @@ public class ProximityInfo {
sweetSpotCenterXs, sweetSpotCenterYs, sweetSpotRadii);
}
private void calculateSweetSpot(List<Key> keys, TouchPositionCorrection touchPositionCorrection,
float[] sweetSpotCenterXs, float[] sweetSpotCenterYs, float[] sweetSpotRadii) {
final int keyCount = keys.size();
final float[] xs = touchPositionCorrection.mXs;
final float[] ys = touchPositionCorrection.mYs;
final float[] radii = touchPositionCorrection.mRadii;
for (int i = 0; i < keyCount; ++i) {
final Key key = keys.get(i);
final Rect hitBox = key.mHitBox;
final int row = hitBox.top / mKeyHeight;
if (row < radii.length) {
final float hitBoxCenterX = (hitBox.left + hitBox.right) * 0.5f;
final float hitBoxCenterY = (hitBox.top + hitBox.bottom) * 0.5f;
final float hitBoxWidth = hitBox.right - hitBox.left;
final float hitBoxHeight = hitBox.bottom - hitBox.top;
final float x = xs[row];
final float y = ys[row];
final float radius = radii[row];
sweetSpotCenterXs[i] = hitBoxCenterX + x * hitBoxWidth;
sweetSpotCenterYs[i] = hitBoxCenterY + y * hitBoxHeight;
sweetSpotRadii[i] = radius
* (float)Math.sqrt(hitBoxWidth * hitBoxWidth + hitBoxHeight * hitBoxHeight);
}
}
}
public long getNativeProximityInfo() {
return mNativeProximityInfo;
}