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Include horizontal and vertical gap in the count of Key.isOnKey

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This change also reverts I8f6102d6 and considers that the point is on
the key while sorting in proximity key detection.

Bug: 4348994
Change-Id: I3ee913675e28da7e7b164805a7a683f0814b38b9
This commit is contained in:
Tadashi G. Takaoka 2011-04-28 23:39:49 +09:00
parent 8d165bb5d1
commit 44fe4a0598
3 changed files with 25 additions and 25 deletions
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25
java/src/com/android/inputmethod/keyboard/Key.java
View file

@ -200,8 +200,8 @@ public class Key {
}
// Horizontal gap is divided equally to both sides of the key.
this.mX = x + mGap / 2;
this.mY = y;
mX = x + mGap / 2;
mY = y;
final TypedArray keyAttr = res.obtainAttributes(Xml.asAttributeSet(parser),
R.styleable.Keyboard_Key);
@ -351,12 +351,13 @@ public class Key {
final boolean rightEdge = (flags & Keyboard.EDGE_RIGHT) != 0;
final boolean topEdge = (flags & Keyboard.EDGE_TOP) != 0;
final boolean bottomEdge = (flags & Keyboard.EDGE_BOTTOM) != 0;
final int left = this.mX;
final int right = left + this.mWidth;
final int top = this.mY;
final int bottom = top + this.mHeight;
return (x >= left || leftEdge) && (x < right || rightEdge)
&& (y >= top || topEdge) && (y < bottom || bottomEdge);
final int left = mX - mGap / 2;
final int right = left + mWidth + mGap;
final int top = mY;
final int bottom = top + mHeight + mKeyboard.getVerticalGap();
// In order to mitigate rounding errors, we use (left <= x <= right) here.
return (x >= left || leftEdge) && (x <= right || rightEdge)
&& (y >= top || topEdge) && (y <= bottom || bottomEdge);
}
/**
@ -366,10 +367,10 @@ public class Key {
* @return the square of the distance of the point from the nearest edge of the key
*/
public int squaredDistanceToEdge(int x, int y) {
final int left = this.mX;
final int right = left + this.mWidth;
final int top = this.mY;
final int bottom = top + this.mHeight;
final int left = mX;
final int right = left + mWidth;
final int top = mY;
final int bottom = top + mHeight;
final int edgeX = x < left ? left : (x > right ? right : x);
final int edgeY = y < top ? top : (y > bottom ? bottom : y);
final int dx = x - edgeX;

21
java/src/com/android/inputmethod/keyboard/KeyDetector.java
View file

@ -91,11 +91,11 @@ public class KeyDetector {
*
* @return Allocates and returns an array that can hold all key indices returned by
* {@link #getKeyIndexAndNearbyCodes} method. All elements in the returned array are
* initialized by {@link #NOT_A_KEY} value.
* initialized by {@link #NOT_A_CODE} value.
*/
public int[] newCodeArray() {
int[] codes = new int[getMaxNearbyKeys()];
Arrays.fill(codes, NOT_A_KEY);
Arrays.fill(codes, NOT_A_CODE);
return codes;
}
@ -106,16 +106,20 @@ public class KeyDetector {
/**
* Insert the key into nearby keys buffer and sort nearby keys by ascending order of distance.
* If the distance of two keys are the same, the key which the point is on should be considered
* as a closer one.
*
* @param keyIndex index of the key.
* @param distance distance between the key's edge and user touched point.
* @param isOnKey true if the point is on the key.
* @return order of the key in the nearby buffer, 0 if it is the nearest key.
*/
private int sortNearbyKeys(int keyIndex, int distance) {
private int sortNearbyKeys(int keyIndex, int distance, boolean isOnKey) {
final int[] distances = mDistances;
final int[] indices = mIndices;
for (int insertPos = 0; insertPos < distances.length; insertPos++) {
if (distance < distances[insertPos]) {
final int comparingDistance = distances[insertPos];
if (distance < comparingDistance || (distance == comparingDistance && isOnKey)) {
final int nextPos = insertPos + 1;
if (nextPos < distances.length) {
System.arraycopy(distances, insertPos, distances, nextPos,
@ -174,12 +178,11 @@ public class KeyDetector {
int primaryIndex = NOT_A_KEY;
for (final int index : mKeyboard.getNearestKeys(touchX, touchY)) {
final Key key = keys.get(index);
// TODO: should be okay to skip calling isInside()
final boolean isInside = mKeyboard.isInside(key, touchX, touchY);
final boolean isOnKey = key.isOnKey(touchX, touchY);
final int distance = key.squaredDistanceToEdge(touchX, touchY);
if (isInside || (mProximityCorrectOn && distance < mProximityThresholdSquare)) {
final int insertedPosition = sortNearbyKeys(index, distance);
if (insertedPosition == 0)
if (isOnKey || (mProximityCorrectOn && distance < mProximityThresholdSquare)) {
final int insertedPosition = sortNearbyKeys(index, distance, isOnKey);
if (insertedPosition == 0 && isOnKey)
primaryIndex = index;
}
}

4
java/src/com/android/inputmethod/keyboard/Keyboard.java
View file

@ -380,10 +380,6 @@ public class Keyboard {
mProximityInfo.setProximityInfo(mGridNeighbors, getMinWidth(), getHeight(), mKeys);
}
public boolean isInside(Key key, int x, int y) {
return key.isOnKey(x, y);
}
/**
* Returns the indices of the keys that are closest to the given point.
* @param x the x-coordinate of the point