From aee5f03d6ebf9cb03b52cbea003556f38745b4fe Mon Sep 17 00:00:00 2001
From: "Tadashi G. Takaoka" <takaoka@google.com>
Date: Tue, 13 Mar 2012 16:47:45 +0900
Subject: [PATCH] Use integer alpha value instead of factor for animation
Change-Id: I3099a7625e0176a1d2be42e58d6eb5fa95797bcb
---
java/res/values/attrs.xml | 2 +-
java/res/values/styles.xml | 2 +-
.../keyboard/LatinKeyboardView.java | 38 +++++++++----------
3 files changed, 19 insertions(+), 23 deletions(-)
diff --git a/java/res/values/attrs.xml b/java/res/values/attrs.xml
index d4a50b6cfe..9abbc2f62a 100644
--- a/java/res/values/attrs.xml
+++ b/java/res/values/attrs.xml
@@ -139,7 +139,7 @@
<enum name="alwaysDisplay" value="-1" />
</attr>
<attr name="delayBeforeFadeoutLangageOnSpacebar" format="integer" />
- <attr name="finalFadeoutFactorOfLanguageOnSpacebar" format="float" />
+ <attr name="finalAlphaOfLanguageOnSpacebar" format="integer" />
<!-- Key detection hysteresis distance. -->
<attr name="keyHysteresisDistance" format="dimension" />
<!-- Touch noise threshold time in millisecond -->
diff --git a/java/res/values/styles.xml b/java/res/values/styles.xml
index eb2f9bb035..818b1c4513 100644
--- a/java/res/values/styles.xml
+++ b/java/res/values/styles.xml
@@ -80,7 +80,7 @@
<item name="showMoreKeysKeyboardAtTouchedPoint">@bool/config_show_more_keys_keyboard_at_touched_point</item>
<item name="durationOfFadeoutLanguageOnSpacebar">200</item>
<item name="delayBeforeFadeoutLangageOnSpacebar">1200</item>
- <item name="finalFadeoutFactorOfLanguageOnSpacebar">0.5</item>
+ <item name="finalAlphaOfLanguageOnSpacebar">128</item>
</style>
<style
name="LatinKeyboardView"
diff --git a/java/src/com/android/inputmethod/keyboard/LatinKeyboardView.java b/java/src/com/android/inputmethod/keyboard/LatinKeyboardView.java
index 9168d0775f..f4e766cb07 100644
--- a/java/src/com/android/inputmethod/keyboard/LatinKeyboardView.java
+++ b/java/src/com/android/inputmethod/keyboard/LatinKeyboardView.java
@@ -21,7 +21,6 @@ import android.content.Context;
import android.content.pm.PackageManager;
import android.content.res.TypedArray;
import android.graphics.Canvas;
-import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Paint.Align;
import android.graphics.Typeface;
@@ -77,13 +76,14 @@ public class LatinKeyboardView extends KeyboardView implements PointerTracker.Ke
private Drawable mSpaceIcon;
// Stuff to draw language name on spacebar.
private ValueAnimator mLanguageOnSpacebarAnimator;
- private float mFinalFadeoutFactorOfLanguageOnSpacebar;
+ private int mFinalAlphaOfLanguageOnSpacebar;
private int mDurationOfFadeoutLanguageOnSpacebar;
+ private static final int ALPHA_OPAQUE = 255;
private static final int LANGUAGE_ON_SPACEBAR_NEVER_DISPLAY = 0;
private static final int LANGUAGE_ON_SPACEBAR_ALWAYS_DISPLAY = -1;
private boolean mNeedsToDisplayLanguage;
private Locale mSpacebarLocale;
- private float mSpacebarTextFadeFactor = 0.0f;
+ private int mSpacebarTextAlpha;
private final float mSpacebarTextRatio;
private float mSpacebarTextSize;
private final int mSpacebarTextColor;
@@ -344,8 +344,8 @@ public class LatinKeyboardView extends KeyboardView implements PointerTracker.Ke
LANGUAGE_ON_SPACEBAR_NEVER_DISPLAY);
final int delayBeforeFadeoutLanguageOnSpacebar = a.getInt(
R.styleable.LatinKeyboardView_delayBeforeFadeoutLangageOnSpacebar, 0);
- mFinalFadeoutFactorOfLanguageOnSpacebar = a.getFloat(
- R.styleable.LatinKeyboardView_finalFadeoutFactorOfLanguageOnSpacebar, 0.0f);
+ mFinalAlphaOfLanguageOnSpacebar = a.getInt(
+ R.styleable.LatinKeyboardView_finalAlphaOfLanguageOnSpacebar, 0);
final KeyTimerParams keyTimerParams = new KeyTimerParams(a);
mPointerTrackerParams = new PointerTrackerParams(a);
@@ -361,8 +361,8 @@ public class LatinKeyboardView extends KeyboardView implements PointerTracker.Ke
PointerTracker.setParameters(mPointerTrackerParams);
- mLanguageOnSpacebarAnimator = ValueAnimator.ofFloat(
- 1.0f, mFinalFadeoutFactorOfLanguageOnSpacebar);
+ mLanguageOnSpacebarAnimator = ValueAnimator.ofInt(
+ ALPHA_OPAQUE, mFinalAlphaOfLanguageOnSpacebar);
mLanguageOnSpacebarAnimator.setStartDelay(delayBeforeFadeoutLanguageOnSpacebar);
if (mDurationOfFadeoutLanguageOnSpacebar > 0) {
mLanguageOnSpacebarAnimator.setDuration(mDurationOfFadeoutLanguageOnSpacebar);
@@ -370,7 +370,7 @@ public class LatinKeyboardView extends KeyboardView implements PointerTracker.Ke
mLanguageOnSpacebarAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
- mSpacebarTextFadeFactor = (Float)animation.getAnimatedValue();
+ mSpacebarTextAlpha = (Integer)animation.getAnimatedValue();
invalidateKey(mSpaceKey);
}
});
@@ -794,15 +794,15 @@ public class LatinKeyboardView extends KeyboardView implements PointerTracker.Ke
mLanguageOnSpacebarAnimator.cancel();
mNeedsToDisplayLanguage = needsToDisplayLanguage;
if (mDurationOfFadeoutLanguageOnSpacebar == LANGUAGE_ON_SPACEBAR_NEVER_DISPLAY) {
- mSpacebarTextFadeFactor = 0.0f;
+ mNeedsToDisplayLanguage = false;
} else if (mDurationOfFadeoutLanguageOnSpacebar == LANGUAGE_ON_SPACEBAR_ALWAYS_DISPLAY) {
- mSpacebarTextFadeFactor = 1.0f;
+ mSpacebarTextAlpha = ALPHA_OPAQUE;
} else {
if (subtypeChanged && needsToDisplayLanguage) {
- mSpacebarTextFadeFactor = 1.0f;
+ mSpacebarTextAlpha = ALPHA_OPAQUE;
mLanguageOnSpacebarAnimator.start();
} else {
- mSpacebarTextFadeFactor = mFinalFadeoutFactorOfLanguageOnSpacebar;
+ mSpacebarTextAlpha = mFinalAlphaOfLanguageOnSpacebar;
}
}
invalidateKey(mSpaceKey);
@@ -835,12 +835,6 @@ public class LatinKeyboardView extends KeyboardView implements PointerTracker.Ke
}
}
- 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 int getTextWidth(Paint paint, String text, float textSize) {
paint.setTextSize(textSize);
@@ -888,7 +882,7 @@ public class LatinKeyboardView extends KeyboardView implements PointerTracker.Ke
final int width = key.mWidth;
final int height = key.mHeight;
- // If application locales are explicitly selected.
+ // If input subtypes are explicitly selected.
if (mNeedsToDisplayLanguage) {
final String language = layoutLanguageOnSpacebar(paint, mSpacebarLocale, width,
mSpacebarTextSize);
@@ -898,9 +892,11 @@ public class LatinKeyboardView extends KeyboardView implements PointerTracker.Ke
final float descent = paint.descent();
final float textHeight = -paint.ascent() + descent;
final float baseline = height / 2 + textHeight / 2;
- paint.setColor(getSpacebarTextColor(mSpacebarTextShadowColor, mSpacebarTextFadeFactor));
+ paint.setColor(mSpacebarTextShadowColor);
+ paint.setAlpha(mSpacebarTextAlpha);
canvas.drawText(language, width / 2, baseline - descent - 1, paint);
- paint.setColor(getSpacebarTextColor(mSpacebarTextColor, mSpacebarTextFadeFactor));
+ paint.setColor(mSpacebarTextColor);
+ paint.setAlpha(mSpacebarTextAlpha);
canvas.drawText(language, width / 2, baseline - descent, paint);
}
--
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