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Move spacebar drawing code from LatinKeyboard to LatinKeyboardView

Browse source 
Also this change moves LatinKeyboard attributes,
autoCorrectionSpacebarLedEnabled, autoCorrectionSpacebarLedIcon,
spacebarTextRatio, spacebarTextColor, and spacebarTextShadowColor to
LatinKeyboardView.

Change-Id: I7cc27ce1fc550e9f620a9ed0fbe4b8172902d5a1
This commit is contained in:
Tadashi G. Takaoka 2011-12-18 08:13:36 +09:00
parent 7bd714c086
commit 4112dc0500
12 changed files with 261 additions and 279 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
java/res/values/attrs.xml
View file

@ -124,6 +124,12 @@
</declare-styleable>
<declare-styleable name="LatinKeyboardView">
<attr name="autoCorrectionSpacebarLedEnabled" format="boolean" />
<attr name="autoCorrectionSpacebarLedIcon" format="reference" />
<!-- Size of the text for spacebar language label, in the proportion of key height. -->
<attr name="spacebarTextRatio" format="fraction" />
<attr name="spacebarTextColor" format="color" />
<attr name="spacebarTextShadowColor" format="color" />
</declare-styleable>
<declare-styleable name="SuggestionsView">
@ -327,16 +333,6 @@
<attr name="parentStyle" format="string" />
</declare-styleable>
<!-- TODO: Move these attributes to LatinKeyboardView -->
<declare-styleable name="LatinKeyboard">
<attr name="autoCorrectionSpacebarLedEnabled" format="boolean" />
<attr name="autoCorrectionSpacebarLedIcon" format="reference" />
<!-- Size of the text for spacebar language label, in the proportion of key height. -->
<attr name="spacebarTextRatio" format="fraction" />
<attr name="spacebarTextColor" format="color" />
<attr name="spacebarTextShadowColor" format="color" />
</declare-styleable>
<declare-styleable name="KeyboardSet">
<!-- Locale of the keyboard layouts -->
<attr name="keyboardLocale" format="string" />

51
java/res/values/styles.xml
View file

@ -31,13 +31,6 @@
<item name="verticalGap">@fraction/key_bottom_gap</item>
<item name="maxMoreKeysColumn">@integer/config_max_more_keys_column</item>
</style>
<style name="LatinKeyboard">
<item name="autoCorrectionSpacebarLedEnabled">true</item>
<item name="autoCorrectionSpacebarLedIcon">@drawable/sym_keyboard_space_led</item>
<item name="spacebarTextRatio">@fraction/spacebar_text_ratio</item>
<item name="spacebarTextColor">#FFC0C0C0</item>
<item name="spacebarTextShadowColor">#80000000</item>
</style>
<style name="KeyboardView">
<item name="android:background">@drawable/keyboard_background</item>
<item name="keyBackground">@drawable/btn_keyboard_key</item>
@ -75,6 +68,11 @@
<style
name="LatinKeyboardView"
parent="KeyboardView">
<item name="autoCorrectionSpacebarLedEnabled">true</item>
<item name="autoCorrectionSpacebarLedIcon">@drawable/sym_keyboard_space_led</item>
<item name="spacebarTextRatio">@fraction/spacebar_text_ratio</item>
<item name="spacebarTextColor">#FFC0C0C0</item>
<item name="spacebarTextShadowColor">#80000000</item>
</style>
<style
name="MiniKeyboard"
@ -143,6 +141,11 @@
name="LatinKeyboardView.HighContrast"
parent="KeyboardView.HighContrast"
>
<item name="autoCorrectionSpacebarLedEnabled">true</item>
<item name="autoCorrectionSpacebarLedIcon">@drawable/sym_keyboard_space_led</item>
<item name="spacebarTextRatio">@fraction/spacebar_text_ratio</item>
<item name="spacebarTextColor">#FFC0C0C0</item>
<item name="spacebarTextShadowColor">#80000000</item>
</style>
<!-- Theme "Stone" -->
<style
@ -156,13 +159,6 @@
<item name="horizontalGap">@fraction/key_horizontal_gap_stone</item>
<item name="verticalGap">@fraction/key_bottom_gap_stone</item>
</style>
<style
name="LatinKeyboard.Stone"
parent="LatinKeyboard"
>
<item name="spacebarTextColor">#FF000000</item>
<item name="spacebarTextShadowColor">#D0FFFFFF</item>
</style>
<style
name="KeyboardView.Stone"
parent="KeyboardView"
@ -180,6 +176,11 @@
name="LatinKeyboardView.Stone"
parent="KeyboardView.Stone"
>
<item name="autoCorrectionSpacebarLedEnabled">true</item>
<item name="autoCorrectionSpacebarLedIcon">@drawable/sym_keyboard_space_led</item>
<item name="spacebarTextRatio">@fraction/spacebar_text_ratio</item>
<item name="spacebarTextColor">#FF000000</item>
<item name="spacebarTextShadowColor">#D0FFFFFF</item>
</style>
<style
name="MiniKeyboard.Stone"
@ -214,6 +215,11 @@
name="LatinKeyboardView.Stone.Bold"
parent="KeyboardView.Stone.Bold"
>
<item name="autoCorrectionSpacebarLedEnabled">true</item>
<item name="autoCorrectionSpacebarLedIcon">@drawable/sym_keyboard_space_led</item>
<item name="spacebarTextRatio">@fraction/spacebar_text_ratio</item>
<item name="spacebarTextColor">#FF000000</item>
<item name="spacebarTextShadowColor">#D0FFFFFF</item>
</style>
<!-- Theme "Gingerbread" -->
<style
@ -237,6 +243,11 @@
name="LatinKeyboardView.Gingerbread"
parent="KeyboardView.Gingerbread"
>
<item name="autoCorrectionSpacebarLedEnabled">true</item>
<item name="autoCorrectionSpacebarLedIcon">@drawable/sym_keyboard_space_led</item>
<item name="spacebarTextRatio">@fraction/spacebar_text_ratio</item>
<item name="spacebarTextColor">#FFC0C0C0</item>
<item name="spacebarTextShadowColor">#80000000</item>
</style>
<style
name="MiniKeyboard.Gingerbread"
@ -264,13 +275,6 @@
<item name="verticalGap">@fraction/key_bottom_gap_ics</item>
<item name="touchPositionCorrectionData">@array/touch_position_correction_data_ice_cream_sandwich</item>
</style>
<style
name="LatinKeyboard.IceCreamSandwich"
parent="LatinKeyboard"
>
<item name="autoCorrectionSpacebarLedEnabled">false</item>
<item name="autoCorrectionSpacebarLedIcon">@drawable/sym_keyboard_space_led_holo</item>
</style>
<style
name="KeyboardView.IceCreamSandwich"
parent="KeyboardView"
@ -298,6 +302,11 @@
name="LatinKeyboardView.IceCreamSandwich"
parent="KeyboardView.IceCreamSandwich"
>
<item name="autoCorrectionSpacebarLedEnabled">false</item>
<item name="autoCorrectionSpacebarLedIcon">@drawable/sym_keyboard_space_led_holo</item>
<item name="spacebarTextRatio">@fraction/spacebar_text_ratio</item>
<item name="spacebarTextColor">#FFC0C0C0</item>
<item name="spacebarTextShadowColor">#80000000</item>
</style>
<style
name="MiniKeyboard.IceCreamSandwich"

1
java/res/values/themes-basic-highcontrast.xml
View file

@ -17,7 +17,6 @@
<resources>
<style name="KeyboardTheme.HighContrast" parent="KeyboardIcons">
<item name="keyboardStyle">@style/Keyboard.HighContrast</item>
<item name="latinKeyboardStyle">@style/LatinKeyboard</item>
<item name="keyboardViewStyle">@style/KeyboardView.HighContrast</item>
<item name="latinKeyboardViewStyle">@style/LatinKeyboardView.HighContrast</item>
<item name="miniKeyboardStyle">@style/MiniKeyboard</item>

1
java/res/values/themes-basic.xml
View file

@ -17,7 +17,6 @@
<resources>
<style name="KeyboardTheme" parent="KeyboardIcons">
<item name="keyboardStyle">@style/Keyboard</item>
<item name="latinKeyboardStyle">@style/LatinKeyboard</item>
<item name="keyboardViewStyle">@style/KeyboardView</item>
<item name="latinKeyboardViewStyle">@style/LatinKeyboardView</item>
<item name="miniKeyboardStyle">@style/MiniKeyboard</item>

1
java/res/values/themes-gingerbread.xml
View file

@ -17,7 +17,6 @@
<resources>
<style name="KeyboardTheme.Gingerbread" parent="KeyboardIcons">
<item name="keyboardStyle">@style/Keyboard.Gingerbread</item>
<item name="latinKeyboardStyle">@style/LatinKeyboard</item>
<item name="keyboardViewStyle">@style/KeyboardView.Gingerbread</item>
<item name="latinKeyboardViewStyle">@style/LatinKeyboardView.Gingerbread</item>
<item name="miniKeyboardStyle">@style/MiniKeyboard.Gingerbread</item>

1
java/res/values/themes-ics.xml
View file

@ -17,7 +17,6 @@
<resources>
<style name="KeyboardTheme.IceCreamSandwich" parent="KeyboardIcons.IceCreamSandwich">
<item name="keyboardStyle">@style/Keyboard.IceCreamSandwich</item>
<item name="latinKeyboardStyle">@style/LatinKeyboard.IceCreamSandwich</item>
<item name="keyboardViewStyle">@style/KeyboardView.IceCreamSandwich</item>
<item name="latinKeyboardViewStyle">@style/LatinKeyboardView.IceCreamSandwich</item>
<item name="miniKeyboardStyle">@style/MiniKeyboard.IceCreamSandwich</item>

1
java/res/values/themes-stone-bold.xml
View file

@ -17,7 +17,6 @@
<resources>
<style name="KeyboardTheme.Stone.Bold" parent="KeyboardIcons.Black">
<item name="keyboardStyle">@style/Keyboard.Stone.Bold</item>
<item name="latinKeyboardStyle">@style/LatinKeyboard.Stone</item>
<item name="keyboardViewStyle">@style/KeyboardView.Stone.Bold</item>
<item name="latinKeyboardViewStyle">@style/LatinKeyboardView.Stone.Bold</item>
<item name="miniKeyboardStyle">@style/MiniKeyboard.Stone</item>

1
java/res/values/themes-stone.xml
View file

@ -17,7 +17,6 @@
<resources>
<style name="KeyboardTheme.Stone" parent="KeyboardIcons.Black">
<item name="keyboardStyle">@style/Keyboard.Stone</item>
<item name="latinKeyboardStyle">@style/LatinKeyboard.Stone</item>
<item name="keyboardViewStyle">@style/KeyboardView.Stone</item>
<item name="latinKeyboardViewStyle">@style/LatinKeyboardView.Stone</item>
<item name="miniKeyboardStyle">@style/MiniKeyboard.Stone</item>

24
java/src/com/android/inputmethod/keyboard/KeyboardSwitcher.java
View file

@ -157,20 +157,16 @@ public class KeyboardSwitcher implements KeyboardState.SwitchActions,
mKeyboardView.setKeyPreviewPopupEnabled(
SettingsValues.isKeyPreviewPopupEnabled(mPrefs, mResources),
SettingsValues.getKeyPreviewPopupDismissDelay(mPrefs, mResources));
mKeyboardView.updateShortcutKey(mSubtypeSwitcher.isShortcutImeReady());
final boolean localeChanged = (oldKeyboard == null)
|| !keyboard.mId.mLocale.equals(oldKeyboard.mId.mLocale);
if (keyboard instanceof LatinKeyboard) {
final LatinKeyboard latinKeyboard = (LatinKeyboard)keyboard;
latinKeyboard.updateAutoCorrectionState(mIsAutoCorrectionActive);
mKeyboardView.updateAutoCorrectionState(mIsAutoCorrectionActive);
// If the cached keyboard had been switched to another keyboard while the language was
// displayed on its spacebar, it might have had arbitrary text fade factor. In such
// case, we should reset the text fade factor. It is also applicable to shortcut key.
mKeyboardView.updateSpacebar();
latinKeyboard.updateSpacebarLanguage(0.0f,
mSubtypeSwitcher.needsToDisplayLanguage(latinKeyboard.mId.mLocale));
}
mKeyboardView.updateSpacebar(0.0f,
mSubtypeSwitcher.needsToDisplayLanguage(keyboard.mId.mLocale));
mKeyboardView.updateShortcutKey(mSubtypeSwitcher.isShortcutImeReady());
updateShiftState();
final boolean localeChanged = (oldKeyboard == null)
|| !keyboard.mId.mLocale.equals(oldKeyboard.mId.mLocale);
mInputMethodService.mHandler.startDisplayLanguageOnSpacebar(localeChanged);
}
@ -419,12 +415,8 @@ public class KeyboardSwitcher implements KeyboardState.SwitchActions,
public void onAutoCorrectionStateChanged(boolean isAutoCorrection) {
if (mIsAutoCorrectionActive != isAutoCorrection) {
mIsAutoCorrectionActive = isAutoCorrection;
final LatinKeyboard keyboard = getLatinKeyboard();
if (keyboard != null && keyboard.needsAutoCorrectionSpacebarLed()) {
final Key invalidatedKey = keyboard.updateAutoCorrectionState(isAutoCorrection);
final LatinKeyboardView keyboardView = getKeyboardView();
if (keyboardView != null)
keyboardView.invalidateKey(invalidatedKey);
if (mKeyboardView != null) {
mKeyboardView.updateAutoCorrectionState(isAutoCorrection);
}
}
}

213
java/src/com/android/inputmethod/keyboard/LatinKeyboard.java
View file

@ -17,77 +17,14 @@
package com.android.inputmethod.keyboard;
import android.content.Context;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Paint.Align;
import android.graphics.PorterDuff;
import android.graphics.Rect;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import com.android.inputmethod.keyboard.internal.KeyboardBuilder;
import com.android.inputmethod.keyboard.internal.KeyboardParams;
import com.android.inputmethod.latin.R;
import com.android.inputmethod.latin.Utils;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Locale;
// TODO: We should remove this class
public class LatinKeyboard extends Keyboard {
private static final int SPACE_LED_LENGTH_PERCENT = 80;
private final Resources mRes;
/* Space key and its icons, drawables and colors. */
private final Key mSpaceKey;
private final Drawable mSpaceIcon;
private final boolean mAutoCorrectionSpacebarLedEnabled;
private final Drawable mAutoCorrectionSpacebarLedIcon;
private final float mSpacebarTextSize;
private final int mSpacebarTextColor;
private final int mSpacebarTextShadowColor;
private final HashMap<Integer, BitmapDrawable> mSpaceDrawableCache =
new HashMap<Integer, BitmapDrawable>();
private boolean mAutoCorrectionSpacebarLedOn;
private boolean mNeedsToDisplayLanguage;
private float mSpacebarTextFadeFactor = 0.0f;
// Height in space key the language name will be drawn. (proportional to space key height)
public static final float SPACEBAR_LANGUAGE_BASELINE = 0.6f;
// If the full language name needs to be smaller than this value to be drawn on space key,
// its short language name will be used instead.
private static final float MINIMUM_SCALE_OF_LANGUAGE_NAME = 0.8f;
private LatinKeyboard(Context context, KeyboardParams params) {
private LatinKeyboard(KeyboardParams params) {
super(params);
mRes = context.getResources();
// The index of space key is available only after Keyboard constructor has finished.
mSpaceKey = getKey(CODE_SPACE);
mSpaceIcon = (mSpaceKey != null) ? mSpaceKey.getIcon() : null;
// TODO: Move these to LatinKeyboardView attributes.
final TypedArray a = context.obtainStyledAttributes(
null, R.styleable.LatinKeyboard, R.attr.latinKeyboardStyle, R.style.LatinKeyboard);
mAutoCorrectionSpacebarLedEnabled = a.getBoolean(
R.styleable.LatinKeyboard_autoCorrectionSpacebarLedEnabled, false);
mAutoCorrectionSpacebarLedIcon = a.getDrawable(
R.styleable.LatinKeyboard_autoCorrectionSpacebarLedIcon);
final float spacebarTextRatio = a.getFraction(R.styleable.LatinKeyboard_spacebarTextRatio,
1000, 1000, 1) / 1000.0f;
final int keyHeight = mMostCommonKeyHeight - mVerticalGap;
mSpacebarTextSize = keyHeight * spacebarTextRatio;
mSpacebarTextColor = a.getColor(R.styleable.LatinKeyboard_spacebarTextColor, 0);
mSpacebarTextShadowColor = a.getColor(
R.styleable.LatinKeyboard_spacebarTextShadowColor, 0);
a.recycle();
}
public static class Builder extends KeyboardBuilder<KeyboardParams> {
@ -103,156 +40,10 @@ public class LatinKeyboard extends Keyboard {
@Override
public LatinKeyboard build() {
return new LatinKeyboard(mContext, mParams);
return new LatinKeyboard(mParams);
}
}
// TODO: Move this drawing method to LatinKeyboardView.
// TODO: Use Key.keyLabel to draw language name of spacebar.
public Key updateSpacebarLanguage(float fadeFactor, boolean needsToDisplayLanguage) {
mSpacebarTextFadeFactor = fadeFactor;
mNeedsToDisplayLanguage = needsToDisplayLanguage;
updateSpacebarIcon();
return mSpaceKey;
}
private static int getSpacebarTextColor(int color, float fadeFactor) {
final int newColor = Color.argb((int)(Color.alpha(color) * fadeFactor),
Color.red(color), Color.green(color), Color.blue(color));
return newColor;
}
// TODO: Get rid of this method
public boolean needsAutoCorrectionSpacebarLed() {
return mAutoCorrectionSpacebarLedEnabled;
}
// TODO: Move this drawing method to LatinKeyboardView.
/**
* @return a key which should be invalidated.
*/
public Key updateAutoCorrectionState(boolean isAutoCorrection) {
mAutoCorrectionSpacebarLedOn = isAutoCorrection;
updateSpacebarIcon();
return mSpaceKey;
}
private void updateSpacebarIcon() {
if (mSpaceKey == null) return;
if (mNeedsToDisplayLanguage) {
mSpaceKey.setIcon(getSpaceDrawable(mId.mLocale));
} else if (mAutoCorrectionSpacebarLedOn) {
mSpaceKey.setIcon(getSpaceDrawable(null));
} else {
mSpaceKey.setIcon(mSpaceIcon);
}
}
// Compute width of text with specified text size using paint.
private static int getTextWidth(Paint paint, String text, float textSize, Rect bounds) {
paint.setTextSize(textSize);
paint.getTextBounds(text, 0, text.length(), bounds);
return bounds.width();
}
// Layout local language name and left and right arrow on spacebar.
private static String layoutSpacebar(Paint paint, Locale locale, int width,
float origTextSize) {
final Rect bounds = new Rect();
// Estimate appropriate language name text size to fit in maxTextWidth.
String language = Utils.getFullDisplayName(locale, true);
int textWidth = getTextWidth(paint, language, origTextSize, bounds);
// Assuming text width and text size are proportional to each other.
float textSize = origTextSize * Math.min(width / textWidth, 1.0f);
// allow variable text size
textWidth = getTextWidth(paint, language, textSize, bounds);
// If text size goes too small or text does not fit, use middle or short name
final boolean useMiddleName = (textSize / origTextSize < MINIMUM_SCALE_OF_LANGUAGE_NAME)
|| (textWidth > width);
final boolean useShortName;
if (useMiddleName) {
language = Utils.getMiddleDisplayLanguage(locale);
textWidth = getTextWidth(paint, language, origTextSize, bounds);
textSize = origTextSize * Math.min(width / textWidth, 1.0f);
useShortName = (textSize / origTextSize < MINIMUM_SCALE_OF_LANGUAGE_NAME)
|| (textWidth > width);
} else {
useShortName = false;
}
if (useShortName) {
language = Utils.getShortDisplayLanguage(locale);
textWidth = getTextWidth(paint, language, origTextSize, bounds);
textSize = origTextSize * Math.min(width / textWidth, 1.0f);
}
paint.setTextSize(textSize);
return language;
}
private BitmapDrawable getSpaceDrawable(Locale locale) {
final Integer hashCode = Arrays.hashCode(
new Object[] { locale, mAutoCorrectionSpacebarLedOn, mSpacebarTextFadeFactor });
final BitmapDrawable cached = mSpaceDrawableCache.get(hashCode);
if (cached != null) {
return cached;
}
final BitmapDrawable drawable = new BitmapDrawable(mRes, drawSpacebar(
locale, mAutoCorrectionSpacebarLedOn, mSpacebarTextFadeFactor));
mSpaceDrawableCache.put(hashCode, drawable);
return drawable;
}
private Bitmap drawSpacebar(Locale inputLocale, boolean isAutoCorrection,
float textFadeFactor) {
final int width = mSpaceKey.mWidth;
final int height = mSpaceIcon != null ? mSpaceIcon.getIntrinsicHeight() : mSpaceKey.mHeight;
final Bitmap buffer = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
final Canvas canvas = new Canvas(buffer);
canvas.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR);
// If application locales are explicitly selected.
if (inputLocale != null) {
final Paint paint = new Paint();
paint.setAntiAlias(true);
paint.setTextAlign(Align.CENTER);
final String language = layoutSpacebar(paint, inputLocale, width, mSpacebarTextSize);
// Draw language text with shadow
// In case there is no space icon, we will place the language text at the center of
// spacebar.
final float descent = paint.descent();
final float textHeight = -paint.ascent() + descent;
final float baseline = (mSpaceIcon != null) ? height * SPACEBAR_LANGUAGE_BASELINE
: height / 2 + textHeight / 2;
paint.setColor(getSpacebarTextColor(mSpacebarTextShadowColor, textFadeFactor));
canvas.drawText(language, width / 2, baseline - descent - 1, paint);
paint.setColor(getSpacebarTextColor(mSpacebarTextColor, textFadeFactor));
canvas.drawText(language, width / 2, baseline - descent, paint);
}
// Draw the spacebar icon at the bottom
if (isAutoCorrection) {
final int iconWidth = width * SPACE_LED_LENGTH_PERCENT / 100;
final int iconHeight = mAutoCorrectionSpacebarLedIcon.getIntrinsicHeight();
int x = (width - iconWidth) / 2;
int y = height - iconHeight;
mAutoCorrectionSpacebarLedIcon.setBounds(x, y, x + iconWidth, y + iconHeight);
mAutoCorrectionSpacebarLedIcon.draw(canvas);
} else if (mSpaceIcon != null) {
final int iconWidth = mSpaceIcon.getIntrinsicWidth();
final int iconHeight = mSpaceIcon.getIntrinsicHeight();
int x = (width - iconWidth) / 2;
int y = height - iconHeight;
mSpaceIcon.setBounds(x, y, x + iconWidth, y + iconHeight);
mSpaceIcon.draw(canvas);
}
return buffer;
}
@Override
public Key[] getNearestKeys(int x, int y) {
// Avoid dead pixels at edges of the keyboard

216
java/src/com/android/inputmethod/keyboard/LatinKeyboardView.java
View file

@ -19,8 +19,16 @@ package com.android.inputmethod.keyboard;
import android.content.Context;
import android.content.pm.PackageManager;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Paint.Align;
import android.graphics.PorterDuff;
import android.graphics.Rect;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.Message;
import android.text.TextUtils;
import android.util.AttributeSet;
@ -47,6 +55,9 @@ import com.android.inputmethod.latin.StaticInnerHandlerWrapper;
import com.android.inputmethod.latin.Utils;
import com.android.inputmethod.latin.Utils.UsabilityStudyLogUtils;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Locale;
import java.util.WeakHashMap;
/**
@ -62,9 +73,30 @@ public class LatinKeyboardView extends KeyboardView implements PointerTracker.Ke
private static final boolean ENABLE_CAPSLOCK_BY_DOUBLETAP = true;
// For drawing spacebar.
/* Space key and its icons, drawables and colors. */
private Key mSpaceKey;
private Drawable mSpaceIcon;
private final boolean mIsSpacebarTriggeringPopupByLongPress;
private boolean mMultipleEnabledIMEsOrSubtypes;
private static final int SPACE_LED_LENGTH_PERCENT = 80;
private final boolean mAutoCorrectionSpacebarLedEnabled;
private final Drawable mAutoCorrectionSpacebarLedIcon;
private final float mSpacebarTextRatio;
private float mSpacebarTextSize;
private final int mSpacebarTextColor;
private final int mSpacebarTextShadowColor;
private final HashMap<Integer, BitmapDrawable> mSpacebarDrawableCache =
new HashMap<Integer, BitmapDrawable>();
private boolean mAutoCorrectionSpacebarLedOn;
private boolean mNeedsToDisplayLanguage;
private Locale mSpacebarLocale;
private float mSpacebarTextFadeFactor = 0.0f;
// Height in space key the language name will be drawn. (proportional to space key height)
public static final float SPACEBAR_LANGUAGE_BASELINE = 0.6f;
// If the full language name needs to be smaller than this value to be drawn on space key,
// its short language name will be used instead.
private static final float MINIMUM_SCALE_OF_LANGUAGE_NAME = 0.8f;
private final SuddenJumpingTouchEventHandler mTouchScreenRegulator;
@ -257,6 +289,19 @@ public class LatinKeyboardView extends KeyboardView implements PointerTracker.Ke
final int longPressSpaceKeyTimeout =
res.getInteger(R.integer.config_long_press_space_key_timeout);
mIsSpacebarTriggeringPopupByLongPress = (longPressSpaceKeyTimeout > 0);
final TypedArray a = context.obtainStyledAttributes(
attrs, R.styleable.LatinKeyboardView, defStyle, R.style.LatinKeyboardView);
mAutoCorrectionSpacebarLedEnabled = a.getBoolean(
R.styleable.LatinKeyboardView_autoCorrectionSpacebarLedEnabled, false);
mAutoCorrectionSpacebarLedIcon = a.getDrawable(
R.styleable.LatinKeyboardView_autoCorrectionSpacebarLedIcon);
mSpacebarTextRatio = a.getFraction(R.styleable.LatinKeyboardView_spacebarTextRatio,
1000, 1000, 1) / 1000.0f;
mSpacebarTextColor = a.getColor(R.styleable.LatinKeyboardView_spacebarTextColor, 0);
mSpacebarTextShadowColor = a.getColor(
R.styleable.LatinKeyboardView_spacebarTextShadowColor, 0);
a.recycle();
}
public void startIgnoringDoubleTap() {
@ -311,6 +356,13 @@ public class LatinKeyboardView extends KeyboardView implements PointerTracker.Ke
PointerTracker.setKeyDetector(mKeyDetector);
mTouchScreenRegulator.setKeyboard(keyboard);
mMoreKeysPanelCache.clear();
mSpaceKey = keyboard.getKey(Keyboard.CODE_SPACE);
mSpaceIcon = keyboard.mIconsSet.getIcon(KeyboardIconsSet.ICON_SPACE_KEY);
final int keyHeight = keyboard.mMostCommonKeyHeight - keyboard.mVerticalGap;
mSpacebarTextSize = keyHeight * mSpacebarTextRatio;
mSpacebarLocale = keyboard.mId.mLocale;
clearSpacebarDrawableCache();
}
/**
@ -708,9 +760,18 @@ public class LatinKeyboardView extends KeyboardView implements PointerTracker.Ke
invalidateKey(shortcutKey);
}
public void updateSpacebar() {
mMultipleEnabledIMEsOrSubtypes = Utils.hasMultipleEnabledIMEsOrSubtypes(
true /* include aux subtypes */);
public void updateSpacebar(float fadeFactor, boolean needsToDisplayLanguage) {
mSpacebarTextFadeFactor = fadeFactor;
mNeedsToDisplayLanguage = needsToDisplayLanguage;
updateSpacebarIcon();
invalidateKey(mSpaceKey);
}
public void updateAutoCorrectionState(boolean isAutoCorrection) {
if (!mAutoCorrectionSpacebarLedEnabled) return;
mAutoCorrectionSpacebarLedOn = isAutoCorrection;
updateSpacebarIcon();
invalidateKey(mSpaceKey);
}
@Override
@ -718,10 +779,151 @@ public class LatinKeyboardView extends KeyboardView implements PointerTracker.Ke
KeyDrawParams params) {
super.onDrawKeyTopVisuals(key, canvas, paint, params);
if (key.mCode == Keyboard.CODE_SPACE) {
// Whether space key needs to show the "..." popup hint for special purposes
if (key.mCode == Keyboard.CODE_SPACE && mIsSpacebarTriggeringPopupByLongPress
&& mMultipleEnabledIMEsOrSubtypes) {
if (mIsSpacebarTriggeringPopupByLongPress
&& Utils.hasMultipleEnabledIMEsOrSubtypes(true /* include aux subtypes */)) {
super.drawKeyPopupHint(key, canvas, paint, params);
}
}
}
// TODO: Get rid of this method and draw spacebar locale and auto correction spacebar LED
// in onDrawKeyTopVisuals.
private void updateSpacebarIcon() {
if (mSpaceKey == null) return;
if (mNeedsToDisplayLanguage) {
mSpaceKey.setIcon(getSpaceDrawable(mSpacebarLocale));
} else if (mAutoCorrectionSpacebarLedOn) {
mSpaceKey.setIcon(getSpaceDrawable(null));
} else {
mSpaceKey.setIcon(mSpaceIcon);
}
}
private static int getSpacebarTextColor(int color, float fadeFactor) {
final int newColor = Color.argb((int)(Color.alpha(color) * fadeFactor),
Color.red(color), Color.green(color), Color.blue(color));
return newColor;
}
// Compute width of text with specified text size using paint.
private static int getTextWidth(Paint paint, String text, float textSize, Rect bounds) {
paint.setTextSize(textSize);
paint.getTextBounds(text, 0, text.length(), bounds);
return bounds.width();
}
// Layout local language name and left and right arrow on spacebar.
private static String layoutSpacebar(Paint paint, Locale locale, int width,
float origTextSize) {
final Rect bounds = new Rect();
// Estimate appropriate language name text size to fit in maxTextWidth.
String language = Utils.getFullDisplayName(locale, true);
int textWidth = getTextWidth(paint, language, origTextSize, bounds);
// Assuming text width and text size are proportional to each other.
float textSize = origTextSize * Math.min(width / textWidth, 1.0f);
// allow variable text size
textWidth = getTextWidth(paint, language, textSize, bounds);
// If text size goes too small or text does not fit, use middle or short name
final boolean useMiddleName = (textSize / origTextSize < MINIMUM_SCALE_OF_LANGUAGE_NAME)
|| (textWidth > width);
final boolean useShortName;
if (useMiddleName) {
language = Utils.getMiddleDisplayLanguage(locale);
textWidth = getTextWidth(paint, language, origTextSize, bounds);
textSize = origTextSize * Math.min(width / textWidth, 1.0f);
useShortName = (textSize / origTextSize < MINIMUM_SCALE_OF_LANGUAGE_NAME)
|| (textWidth > width);
} else {
useShortName = false;
}
if (useShortName) {
language = Utils.getShortDisplayLanguage(locale);
textWidth = getTextWidth(paint, language, origTextSize, bounds);
textSize = origTextSize * Math.min(width / textWidth, 1.0f);
}
paint.setTextSize(textSize);
return language;
}
private Integer getSpaceDrawableKey(Locale locale) {
return Arrays.hashCode(new Object[] {
locale,
mAutoCorrectionSpacebarLedOn,
mSpacebarTextFadeFactor
});
}
private void clearSpacebarDrawableCache() {
for (final BitmapDrawable drawable : mSpacebarDrawableCache.values()) {
final Bitmap bitmap = drawable.getBitmap();
bitmap.recycle();
}
mSpacebarDrawableCache.clear();
}
private BitmapDrawable getSpaceDrawable(Locale locale) {
final Integer hashCode = getSpaceDrawableKey(locale);
final BitmapDrawable cached = mSpacebarDrawableCache.get(hashCode);
if (cached != null) {
return cached;
}
final BitmapDrawable drawable = new BitmapDrawable(getResources(), drawSpacebar(
locale, mAutoCorrectionSpacebarLedOn, mSpacebarTextFadeFactor));
mSpacebarDrawableCache.put(hashCode, drawable);
return drawable;
}
private Bitmap drawSpacebar(Locale inputLocale, boolean isAutoCorrection,
float textFadeFactor) {
final int width = mSpaceKey.mWidth;
final int height = mSpaceIcon != null ? mSpaceIcon.getIntrinsicHeight() : mSpaceKey.mHeight;
final Bitmap buffer = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
final Canvas canvas = new Canvas(buffer);
canvas.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR);
// If application locales are explicitly selected.
if (inputLocale != null) {
final Paint paint = new Paint();
paint.setAntiAlias(true);
paint.setTextAlign(Align.CENTER);
final String language = layoutSpacebar(paint, inputLocale, width, mSpacebarTextSize);
// Draw language text with shadow
// In case there is no space icon, we will place the language text at the center of
// spacebar.
final float descent = paint.descent();
final float textHeight = -paint.ascent() + descent;
final float baseline = (mSpaceIcon != null) ? height * SPACEBAR_LANGUAGE_BASELINE
: height / 2 + textHeight / 2;
paint.setColor(getSpacebarTextColor(mSpacebarTextShadowColor, textFadeFactor));
canvas.drawText(language, width / 2, baseline - descent - 1, paint);
paint.setColor(getSpacebarTextColor(mSpacebarTextColor, textFadeFactor));
canvas.drawText(language, width / 2, baseline - descent, paint);
}
// Draw the spacebar icon at the bottom
if (isAutoCorrection) {
final int iconWidth = width * SPACE_LED_LENGTH_PERCENT / 100;
final int iconHeight = mAutoCorrectionSpacebarLedIcon.getIntrinsicHeight();
int x = (width - iconWidth) / 2;
int y = height - iconHeight;
mAutoCorrectionSpacebarLedIcon.setBounds(x, y, x + iconWidth, y + iconHeight);
mAutoCorrectionSpacebarLedIcon.draw(canvas);
} else if (mSpaceIcon != null) {
final int iconWidth = mSpaceIcon.getIntrinsicWidth();
final int iconHeight = mSpaceIcon.getIntrinsicHeight();
int x = (width - iconWidth) / 2;
int y = height - iconHeight;
mSpaceIcon.setBounds(x, y, x + iconWidth, y + iconHeight);
mSpaceIcon.draw(canvas);
}
return buffer;
}
}

8
java/src/com/android/inputmethod/latin/LatinIME.java
View file

@ -344,11 +344,9 @@ public class LatinIME extends InputMethodServiceCompatWrapper implements Keyboar
if (inputView == null) return;
final Keyboard keyboard = inputView.getKeyboard();
if (keyboard instanceof LatinKeyboard && keyboard == oldKeyboard) {
inputView.updateSpacebar();
final Key updatedKey = ((LatinKeyboard)keyboard).updateSpacebarLanguage(
fadeFactor,
SubtypeSwitcher.getInstance().needsToDisplayLanguage(keyboard.mId.mLocale));
inputView.invalidateKey(updatedKey);
inputView.updateSpacebar(fadeFactor,
SubtypeSwitcher.getInstance().needsToDisplayLanguage(
keyboard.mId.mLocale));
}
}