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Merge "Remove deprecated Canvas.clipRegion(Region) call"

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Tadashi G. Takaoka 2014-11-17 09:05:10 +00:00 committed by Android (Google) Code Review
parent e7a72de8c2 8523720b22
commit 81dde500a8
1 changed files with 58 additions and 56 deletions
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114
java/src/com/android/inputmethod/keyboard/KeyboardView.java
View File

@ -25,7 +25,6 @@ import android.graphics.Paint;
import android.graphics.Paint.Align; import android.graphics.Paint.Align;
import android.graphics.PorterDuff; import android.graphics.PorterDuff;
import android.graphics.Rect; import android.graphics.Rect;
import android.graphics.Region;
import android.graphics.Typeface; import android.graphics.Typeface;
import android.graphics.drawable.Drawable; import android.graphics.drawable.Drawable;
import android.graphics.drawable.NinePatchDrawable; import android.graphics.drawable.NinePatchDrawable;
@ -41,6 +40,7 @@ import com.android.inputmethod.latin.utils.TypefaceUtils;
import java.util.HashSet; import java.util.HashSet;
import javax.annotation.Nonnull;
import javax.annotation.Nullable; import javax.annotation.Nullable;
/** /**
@ -100,6 +100,8 @@ public class KeyboardView extends View {
private static final float MAX_LABEL_RATIO = 0.90f; private static final float MAX_LABEL_RATIO = 0.90f;
// Main keyboard // Main keyboard
// TODO: Consider having a dummy keyboard object to make this @Nonnull
@Nullable
private Keyboard mKeyboard; private Keyboard mKeyboard;
protected final KeyDrawParams mKeyDrawParams = new KeyDrawParams(); protected final KeyDrawParams mKeyDrawParams = new KeyDrawParams();
@ -108,14 +110,14 @@ public class KeyboardView extends View {
private boolean mInvalidateAllKeys; private boolean mInvalidateAllKeys;
/** The keys that should be drawn */ /** The keys that should be drawn */
private final HashSet<Key> mInvalidatedKeys = new HashSet<>(); private final HashSet<Key> mInvalidatedKeys = new HashSet<>();
/** The working rectangle variable */ /** The working rectangle for clipping */
private final Rect mWorkingRect = new Rect(); private final Rect mClipRect = new Rect();
/** The keyboard bitmap buffer for faster updates */ /** The keyboard bitmap buffer for faster updates */
/** The clip region to draw keys */
private final Region mClipRegion = new Region();
private Bitmap mOffscreenBuffer; private Bitmap mOffscreenBuffer;
/** The canvas for the above mutable keyboard bitmap */ /** The canvas for the above mutable keyboard bitmap */
@Nonnull
private final Canvas mOffscreenCanvas = new Canvas(); private final Canvas mOffscreenCanvas = new Canvas();
@Nonnull
private final Paint mPaint = new Paint(); private final Paint mPaint = new Paint();
private final Paint.FontMetrics mFontMetrics = new Paint.FontMetrics(); private final Paint.FontMetrics mFontMetrics = new Paint.FontMetrics();
public KeyboardView(final Context context, final AttributeSet attrs) { public KeyboardView(final Context context, final AttributeSet attrs) {
@ -161,11 +163,12 @@ public class KeyboardView extends View {
mPaint.setAntiAlias(true); mPaint.setAntiAlias(true);
} }
@Nullable
public KeyVisualAttributes getKeyVisualAttribute() { public KeyVisualAttributes getKeyVisualAttribute() {
return mKeyVisualAttributes; return mKeyVisualAttributes;
} }
private static void blendAlpha(final Paint paint, final int alpha) { private static void blendAlpha(@Nonnull final Paint paint, final int alpha) {
final int color = paint.getColor(); final int color = paint.getColor();
paint.setARGB((paint.getAlpha() * alpha) / Constants.Color.ALPHA_OPAQUE, paint.setARGB((paint.getAlpha() * alpha) / Constants.Color.ALPHA_OPAQUE,
Color.red(color), Color.green(color), Color.blue(color)); Color.red(color), Color.green(color), Color.blue(color));
@ -184,7 +187,7 @@ public class KeyboardView extends View {
* @see #getKeyboard() * @see #getKeyboard()
* @param keyboard the keyboard to display in this view * @param keyboard the keyboard to display in this view
*/ */
public void setKeyboard(final Keyboard keyboard) { public void setKeyboard(@Nonnull final Keyboard keyboard) {
mKeyboard = keyboard; mKeyboard = keyboard;
final int keyHeight = keyboard.mMostCommonKeyHeight - keyboard.mVerticalGap; final int keyHeight = keyboard.mMostCommonKeyHeight - keyboard.mVerticalGap;
mKeyDrawParams.updateParams(keyHeight, mKeyVisualAttributes); mKeyDrawParams.updateParams(keyHeight, mKeyVisualAttributes);
@ -198,6 +201,7 @@ public class KeyboardView extends View {
* @return the currently attached keyboard * @return the currently attached keyboard
* @see #setKeyboard(Keyboard) * @see #setKeyboard(Keyboard)
*/ */
@Nullable
public Keyboard getKeyboard() { public Keyboard getKeyboard() {
return mKeyboard; return mKeyboard;
} }
@ -212,13 +216,14 @@ public class KeyboardView extends View {
@Override @Override
protected void onMeasure(final int widthMeasureSpec, final int heightMeasureSpec) { protected void onMeasure(final int widthMeasureSpec, final int heightMeasureSpec) {
if (mKeyboard == null) { final Keyboard keyboard = getKeyboard();
if (keyboard == null) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec); super.onMeasure(widthMeasureSpec, heightMeasureSpec);
return; return;
} }
// The main keyboard expands to the entire this {@link KeyboardView}. // The main keyboard expands to the entire this {@link KeyboardView}.
final int width = mKeyboard.mOccupiedWidth + getPaddingLeft() + getPaddingRight(); final int width = keyboard.mOccupiedWidth + getPaddingLeft() + getPaddingRight();
final int height = mKeyboard.mOccupiedHeight + getPaddingTop() + getPaddingBottom(); final int height = keyboard.mOccupiedHeight + getPaddingTop() + getPaddingBottom();
setMeasuredDimension(width, height); setMeasuredDimension(width, height);
} }
@ -266,52 +271,45 @@ public class KeyboardView extends View {
} }
} }
private void onDrawKeyboard(final Canvas canvas) { private void onDrawKeyboard(@Nonnull final Canvas canvas) {
if (mKeyboard == null) return; final Keyboard keyboard = getKeyboard();
if (keyboard == null) {
return;
}
final int width = getWidth();
final int height = getHeight();
final Paint paint = mPaint; final Paint paint = mPaint;
final Drawable background = getBackground();
// Calculate clip region and set. // Calculate clip region and set.
final boolean drawAllKeys = mInvalidateAllKeys || mInvalidatedKeys.isEmpty(); final boolean drawAllKeys = mInvalidateAllKeys || mInvalidatedKeys.isEmpty();
final boolean isHardwareAccelerated = canvas.isHardwareAccelerated(); final boolean isHardwareAccelerated = canvas.isHardwareAccelerated();
// TODO: Confirm if it's really required to draw all keys when hardware acceleration is on. // TODO: Confirm if it's really required to draw all keys when hardware acceleration is on.
if (drawAllKeys || isHardwareAccelerated) { if (drawAllKeys || isHardwareAccelerated) {
mClipRegion.set(0, 0, width, height); if (!isHardwareAccelerated && background != null) {
} else { // Need to draw keyboard background on {@link #mOffscreenBuffer}.
mClipRegion.setEmpty(); canvas.drawColor(Color.BLACK, PorterDuff.Mode.CLEAR);
for (final Key key : mInvalidatedKeys) {
if (mKeyboard.hasKey(key)) {
final int x = key.getX() + getPaddingLeft();
final int y = key.getY() + getPaddingTop();
mWorkingRect.set(x, y, x + key.getWidth(), y + key.getHeight());
mClipRegion.union(mWorkingRect);
}
}
}
if (!isHardwareAccelerated) {
canvas.clipRegion(mClipRegion, Region.Op.REPLACE);
// Draw keyboard background.
canvas.drawColor(Color.BLACK, PorterDuff.Mode.CLEAR);
final Drawable background = getBackground();
if (background != null) {
background.draw(canvas); background.draw(canvas);
} }
}
// TODO: Confirm if it's really required to draw all keys when hardware acceleration is on.
if (drawAllKeys || isHardwareAccelerated) {
// Draw all keys. // Draw all keys.
for (final Key key : mKeyboard.getSortedKeys()) { for (final Key key : keyboard.getSortedKeys()) {
onDrawKey(key, canvas, paint); onDrawKey(key, canvas, paint);
} }
} else { } else {
// Draw invalidated keys.
for (final Key key : mInvalidatedKeys) { for (final Key key : mInvalidatedKeys) {
if (mKeyboard.hasKey(key)) { if (!keyboard.hasKey(key)) {
onDrawKey(key, canvas, paint); continue;
} }
if (background != null) {
// Need to redraw key's background on {@link #mOffscreenBuffer}.
final int x = key.getX() + getPaddingLeft();
final int y = key.getY() + getPaddingTop();
mClipRect.set(x, y, x + key.getWidth(), y + key.getHeight());
canvas.save();
canvas.clipRect(mClipRect);
canvas.drawColor(Color.BLACK, PorterDuff.Mode.CLEAR);
background.draw(canvas);
canvas.restore();
}
onDrawKey(key, canvas, paint);
} }
} }
@ -319,20 +317,22 @@ public class KeyboardView extends View {
mInvalidateAllKeys = false; mInvalidateAllKeys = false;
} }
private void onDrawKey(final Key key, final Canvas canvas, final Paint paint) { private void onDrawKey(@Nonnull final Key key, @Nonnull final Canvas canvas,
@Nonnull final Paint paint) {
final int keyDrawX = key.getDrawX() + getPaddingLeft(); final int keyDrawX = key.getDrawX() + getPaddingLeft();
final int keyDrawY = key.getY() + getPaddingTop(); final int keyDrawY = key.getY() + getPaddingTop();
canvas.translate(keyDrawX, keyDrawY); canvas.translate(keyDrawX, keyDrawY);
final int keyHeight = mKeyboard.mMostCommonKeyHeight - mKeyboard.mVerticalGap;
final KeyVisualAttributes attr = key.getVisualAttributes(); final KeyVisualAttributes attr = key.getVisualAttributes();
final KeyDrawParams params = mKeyDrawParams.mayCloneAndUpdateParams(keyHeight, attr); final KeyDrawParams params = mKeyDrawParams.mayCloneAndUpdateParams(key.getHeight(), attr);
params.mAnimAlpha = Constants.Color.ALPHA_OPAQUE; params.mAnimAlpha = Constants.Color.ALPHA_OPAQUE;
if (!key.isSpacer()) { if (!key.isSpacer()) {
final Drawable background = key.selectBackgroundDrawable( final Drawable background = key.selectBackgroundDrawable(
mKeyBackground, mFunctionalKeyBackground, mSpacebarBackground); mKeyBackground, mFunctionalKeyBackground, mSpacebarBackground);
onDrawKeyBackground(key, canvas, background); if (background != null) {
onDrawKeyBackground(key, canvas, background);
}
} }
onDrawKeyTopVisuals(key, canvas, paint, params); onDrawKeyTopVisuals(key, canvas, paint, params);
@ -340,8 +340,8 @@ public class KeyboardView extends View {
} }
// Draw key background. // Draw key background.
protected void onDrawKeyBackground(final Key key, final Canvas canvas, protected void onDrawKeyBackground(@Nonnull final Key key, @Nonnull final Canvas canvas,
final Drawable background) { @Nonnull final Drawable background) {
final int keyWidth = key.getDrawWidth(); final int keyWidth = key.getDrawWidth();
final int keyHeight = key.getHeight(); final int keyHeight = key.getHeight();
final int bgWidth, bgHeight, bgX, bgY; final int bgWidth, bgHeight, bgX, bgY;
@ -373,15 +373,17 @@ public class KeyboardView extends View {
} }
// Draw key top visuals. // Draw key top visuals.
protected void onDrawKeyTopVisuals(final Key key, final Canvas canvas, final Paint paint, protected void onDrawKeyTopVisuals(@Nonnull final Key key, @Nonnull final Canvas canvas,
final KeyDrawParams params) { @Nonnull final Paint paint, @Nonnull final KeyDrawParams params) {
final int keyWidth = key.getDrawWidth(); final int keyWidth = key.getDrawWidth();
final int keyHeight = key.getHeight(); final int keyHeight = key.getHeight();
final float centerX = keyWidth * 0.5f; final float centerX = keyWidth * 0.5f;
final float centerY = keyHeight * 0.5f; final float centerY = keyHeight * 0.5f;
// Draw key label. // Draw key label.
final Drawable icon = key.getIcon(mKeyboard.mIconsSet, params.mAnimAlpha); final Keyboard keyboard = getKeyboard();
final Drawable icon = (keyboard == null) ? null
: key.getIcon(keyboard.mIconsSet, params.mAnimAlpha);
float labelX = centerX; float labelX = centerX;
float labelBaseline = centerY; float labelBaseline = centerY;
final String label = key.getLabel(); final String label = key.getLabel();
@ -500,8 +502,8 @@ public class KeyboardView extends View {
} }
// Draw popup hint "..." at the bottom right corner of the key. // Draw popup hint "..." at the bottom right corner of the key.
protected void drawKeyPopupHint(final Key key, final Canvas canvas, final Paint paint, protected void drawKeyPopupHint(@Nonnull final Key key, @Nonnull final Canvas canvas,
final KeyDrawParams params) { @Nonnull final Paint paint, @Nonnull final KeyDrawParams params) {
if (TextUtils.isEmpty(mKeyPopupHintLetter)) { if (TextUtils.isEmpty(mKeyPopupHintLetter)) {
return; return;
} }
@ -518,15 +520,15 @@ public class KeyboardView extends View {
canvas.drawText(mKeyPopupHintLetter, hintX, hintY, paint); canvas.drawText(mKeyPopupHintLetter, hintX, hintY, paint);
} }
protected static void drawIcon(final Canvas canvas, final Drawable icon, final int x, protected static void drawIcon(@Nonnull final Canvas canvas,@Nonnull final Drawable icon,
final int y, final int width, final int height) { final int x, final int y, final int width, final int height) {
canvas.translate(x, y); canvas.translate(x, y);
icon.setBounds(0, 0, width, height); icon.setBounds(0, 0, width, height);
icon.draw(canvas); icon.draw(canvas);
canvas.translate(-x, -y); canvas.translate(-x, -y);
} }
public Paint newLabelPaint(final Key key) { public Paint newLabelPaint(@Nullable final Key key) {
final Paint paint = new Paint(); final Paint paint = new Paint();
paint.setAntiAlias(true); paint.setAntiAlias(true);
if (key == null) { if (key == null) {
@ -560,7 +562,7 @@ public class KeyboardView extends View {
* @see #invalidateAllKeys * @see #invalidateAllKeys
*/ */
public void invalidateKey(@Nullable final Key key) { public void invalidateKey(@Nullable final Key key) {
if (key == null || mInvalidateAllKeys) { if (mInvalidateAllKeys || key == null) {
return; return;
} }
mInvalidatedKeys.add(key); mInvalidatedKeys.add(key);