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Introduce hit box to Key and get rid of edge flags

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Change-Id: I2b78d2ca756223b5497d01127c3a0190dcc81e57
This commit is contained in:
Tadashi G. Takaoka 2011-09-28 18:51:57 +09:00
parent a59f65ad0c
commit 2fc4248700
5 changed files with 45 additions and 58 deletions
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63
java/src/com/android/inputmethod/keyboard/Key.java
View File

@ -19,6 +19,7 @@ package com.android.inputmethod.keyboard;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.content.res.XmlResourceParser;
import android.graphics.Rect;
import android.graphics.Typeface;
import android.graphics.drawable.Drawable;
import android.text.TextUtils;
@ -86,6 +87,9 @@ public class Key {
public final int mX;
/** Y coordinate of the key in the keyboard layout */
public final int mY;
/** Hit bounding box of the key */
public final Rect mHitBox = new Rect();
/** Text to output when pressed. This can be multiple characters, like ".com" */
public final CharSequence mOutputText;
/** More keys */
@ -93,14 +97,6 @@ public class Key {
/** More keys maximum column number */
public final int mMaxMoreKeysColumn;
/**
* Flags that specify the anchoring to edges of the keyboard for detecting touch events
* that are just out of the boundary of the key. This is a bit mask of
* {@link Keyboard#EDGE_LEFT}, {@link Keyboard#EDGE_RIGHT},
* {@link Keyboard#EDGE_TOP} and {@link Keyboard#EDGE_BOTTOM}.
*/
private int mEdgeFlags;
/** Background type that represents different key background visual than normal one. */
public final int mBackgroundType;
public static final int BACKGROUND_TYPE_NORMAL = 0;
@ -167,23 +163,22 @@ public class Key {
* This constructor is being used only for key in more keys keyboard.
*/
public Key(Resources res, KeyboardParams params, String moreKeySpec,
int x, int y, int width, int height, int edgeFlags) {
int x, int y, int width, int height) {
this(params, MoreKeySpecParser.getLabel(moreKeySpec), null, getIcon(params, moreKeySpec),
getCode(res, params, moreKeySpec), MoreKeySpecParser.getOutputText(moreKeySpec),
x, y, width, height, edgeFlags);
x, y, width, height);
}
/**
* This constructor is being used only for key in popup suggestions pane.
*/
public Key(KeyboardParams params, CharSequence label, CharSequence hintLabel, Drawable icon,
int code, CharSequence outputText, int x, int y, int width, int height, int edgeFlags) {
int code, CharSequence outputText, int x, int y, int width, int height) {
mHeight = height - params.mVerticalGap;
mHorizontalGap = params.mHorizontalGap;
mVerticalGap = params.mVerticalGap;
mVisualInsetsLeft = mVisualInsetsRight = 0;
mWidth = width - mHorizontalGap;
mEdgeFlags = edgeFlags;
mHintLabel = hintLabel;
mLabelOption = 0;
mBackgroundType = BACKGROUND_TYPE_NORMAL;
@ -197,6 +192,7 @@ public class Key {
// Horizontal gap is divided equally to both sides of the key.
mX = x + mHorizontalGap / 2;
mY = y;
mHitBox.set(x, y, x + width + 1, y + height);
}
/**
@ -212,8 +208,9 @@ public class Key {
public Key(Resources res, KeyboardParams params, KeyboardBuilder.Row row,
XmlResourceParser parser, KeyStyles keyStyles) {
final float horizontalGap = isSpacer() ? 0 : params.mHorizontalGap;
final int keyHeight = row.mRowHeight;
mVerticalGap = params.mVerticalGap;
mHeight = row.mRowHeight - mVerticalGap;
mHeight = keyHeight - mVerticalGap;
final TypedArray keyAttr = res.obtainAttributes(Xml.asAttributeSet(parser),
R.styleable.Keyboard_Key);
@ -230,12 +227,14 @@ public class Key {
final float keyXPos = row.getKeyX(keyAttr);
final float keyWidth = row.getKeyWidth(keyAttr, keyXPos);
final int keyYPos = row.getKeyY();
// Horizontal gap is divided equally to both sides of the key.
mX = (int) (keyXPos + horizontalGap / 2);
mY = row.getKeyY();
mY = keyYPos;
mWidth = (int) (keyWidth - horizontalGap);
mHorizontalGap = (int) horizontalGap;
mHitBox.set((int)keyXPos, keyYPos, (int)(keyXPos + keyWidth) + 1, keyYPos + keyHeight);
// Update row to have current x coordinate.
row.setXPos(keyXPos + keyWidth);
@ -256,7 +255,6 @@ public class Key {
R.styleable.Keyboard_Key_backgroundType, BACKGROUND_TYPE_NORMAL);
mRepeatable = style.getBoolean(keyAttr, R.styleable.Keyboard_Key_isRepeatable, false);
mEnabled = style.getBoolean(keyAttr, R.styleable.Keyboard_Key_enabled, true);
mEdgeFlags = 0;
final KeyboardIconsSet iconsSet = params.mIconsSet;
mVisualInsetsLeft = (int) KeyboardBuilder.getDimensionOrFraction(keyAttr,
@ -294,8 +292,20 @@ public class Key {
keyAttr.recycle();
}
public void addEdgeFlags(int flags) {
mEdgeFlags |= flags;
public void markAsLeftEdge(KeyboardParams params) {
mHitBox.left = params.mHorizontalEdgesPadding;
}
public void markAsRightEdge(KeyboardParams params) {
mHitBox.right = params.mOccupiedWidth - params.mHorizontalEdgesPadding;
}
public void markAsTopEdge(KeyboardParams params) {
mHitBox.top = params.mTopPadding;
}
public void markAsBottomEdge(KeyboardParams params) {
mHitBox.bottom = params.mOccupiedHeight + params.mBottomPadding;
}
public boolean isSticky() {
@ -427,23 +437,10 @@ public class Key {
* @param y the y-coordinate of the point
* @return whether or not the point falls on the key. If the key is attached to an edge, it will
* assume that all points between the key and the edge are considered to be on the key.
* @see {@link #markAsLeftEdge(KeyboardParams)} etc.
*/
public boolean isOnKey(int x, int y) {
final int left = mX - mHorizontalGap / 2;
final int right = left + mWidth + mHorizontalGap;
final int top = mY;
final int bottom = top + mHeight + mVerticalGap;
final int flags = mEdgeFlags;
if (flags == 0) {
return x >= left && x <= right && y >= top && y <= bottom;
}
final boolean leftEdge = (flags & Keyboard.EDGE_LEFT) != 0;
final boolean rightEdge = (flags & Keyboard.EDGE_RIGHT) != 0;
final boolean topEdge = (flags & Keyboard.EDGE_TOP) != 0;
final boolean bottomEdge = (flags & Keyboard.EDGE_BOTTOM) != 0;
// 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);
return mHitBox.contains(x, y);
}
/**
@ -547,7 +544,7 @@ public class Key {
* This constructor is being used only for divider in more keys keyboard.
*/
public Spacer(KeyboardParams params, Drawable icon, int x, int y, int width, int height) {
super(params, null, null, icon, Keyboard.CODE_DUMMY, null, x, y, width, height, 0);
super(params, null, null, icon, Keyboard.CODE_DUMMY, null, x, y, width, height);
}
@Override

5
java/src/com/android/inputmethod/keyboard/Keyboard.java
View File

@ -47,11 +47,6 @@ import java.util.Set;
* </pre>
*/
public class Keyboard {
public static final int EDGE_LEFT = 0x01;
public static final int EDGE_RIGHT = 0x02;
public static final int EDGE_TOP = 0x04;
public static final int EDGE_BOTTOM = 0x08;
/** Some common keys code. These should be aligned with values/keycodes.xml */
public static final int CODE_ENTER = '\n';
public static final int CODE_TAB = '\t';

12
java/src/com/android/inputmethod/keyboard/MiniKeyboard.java
View File

@ -193,13 +193,11 @@ public class MiniKeyboard extends Keyboard {
return (mNumRows - 1 - row) * mDefaultRowHeight + mTopPadding;
}
public int getRowFlags(int row) {
int rowFlags = 0;
public void markAsEdgeKey(Key key, int row) {
if (row == 0)
rowFlags |= Keyboard.EDGE_TOP;
key.markAsTopEdge(this);
if (isTopRow(row))
rowFlags |= Keyboard.EDGE_BOTTOM;
return rowFlags;
key.markAsBottomEdge(this);
}
private boolean isTopRow(int rowCount) {
@ -254,8 +252,8 @@ public class MiniKeyboard extends Keyboard {
final String moreKeySpec = mMoreKeys[n].toString();
final int row = n / params.mNumColumns;
final Key key = new Key(mResources, params, moreKeySpec, params.getX(n, row),
params.getY(row), params.mDefaultKeyWidth, params.mDefaultRowHeight,
params.getRowFlags(row));
params.getY(row), params.mDefaultKeyWidth, params.mDefaultRowHeight);
params.markAsEdgeKey(key, row);
params.onAddKey(key);
}
return new MiniKeyboard(params);

6
java/src/com/android/inputmethod/keyboard/internal/KeyboardBuilder.java
View File

@ -753,7 +753,7 @@ public class KeyboardBuilder<KP extends KeyboardParams> {
if (mCurrentRow == null)
throw new InflateException("orphant end row tag");
if (mRightEdgeKey != null) {
mRightEdgeKey.addEdgeFlags(Keyboard.EDGE_RIGHT);
mRightEdgeKey.markAsRightEdge(mParams);
mRightEdgeKey = null;
}
addEdgeSpace(mParams.mHorizontalEdgesPadding, row);
@ -765,11 +765,11 @@ public class KeyboardBuilder<KP extends KeyboardParams> {
private void endKey(Key key) {
mParams.onAddKey(key);
if (mLeftEdge) {
key.addEdgeFlags(Keyboard.EDGE_LEFT);
key.markAsLeftEdge(mParams);
mLeftEdge = false;
}
if (mTopEdge) {
key.addEdgeFlags(Keyboard.EDGE_TOP);
key.markAsTopEdge(mParams);
}
mRightEdgeKey = key;
}

17
java/src/com/android/inputmethod/latin/MoreSuggestions.java
View File

@ -153,23 +153,19 @@ public class MoreSuggestions extends Keyboard {
return (mOccupiedWidth - mDividerWidth * (numColumnInRow - 1)) / numColumnInRow;
}
public int getFlags(int pos) {
int rowFlags = 0;
public void markAsEdgeKey(Key key, int pos) {
final int row = mRowNumbers[pos];
if (row == 0)
rowFlags |= Keyboard.EDGE_BOTTOM;
key.markAsBottomEdge(this);
if (row == mNumRows - 1)
rowFlags |= Keyboard.EDGE_TOP;
key.markAsTopEdge(this);
final int numColumnInRow = mNumColumnsInRow[row];
final int column = getColumnNumber(pos);
if (column == 0)
rowFlags |= Keyboard.EDGE_LEFT;
key.markAsLeftEdge(this);
if (column == numColumnInRow - 1)
rowFlags |= Keyboard.EDGE_RIGHT;
return rowFlags;
key.markAsRightEdge(this);
}
}
@ -214,7 +210,8 @@ public class MoreSuggestions extends Keyboard {
final int index = pos + SUGGESTION_CODE_BASE;
final Key key = new Key(
params, word, info, null, index, null, x, y, width,
params.mDefaultRowHeight, params.getFlags(pos));
params.mDefaultRowHeight);
params.markAsEdgeKey(key, pos);
params.onAddKey(key);
final int columnNumber = params.getColumnNumber(pos);
final int numColumnInRow = params.getNumColumnInRow(pos);