Ellipsize marquee TextViews that aren't currently animating (282e377d) · Commits · e / os / android_frameworks_base

core/java/android/widget/TextView.java

+159 −71

Original line number	Diff line number	Diff line
		@@ -64,6 +64,7 @@ import android.text.TextDirectionHeuristics;
		import android.text.TextPaint;
		import android.text.TextUtils;
		import android.text.TextWatcher;
		import android.text.TextUtils.TruncateAt;
		import android.text.method.AllCapsTransformationMethod;
		import android.text.method.ArrowKeyMovementMethod;
		import android.text.method.DateKeyListener;
		@@ -366,6 +367,35 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener

		private boolean mResolvedDrawables = false;

		/**
		* On some devices the fading edges add a performance penalty if used
		* extensively in the same layout. This mode indicates how the marquee
		* is currently being shown, if applicable. (mEllipsize will == MARQUEE)
		*/
		private int mMarqueeFadeMode = MARQUEE_FADE_NORMAL;

		/**
		* When mMarqueeFadeMode is not MARQUEE_FADE_NORMAL, this stores
		* the layout that should be used when the mode switches.
		*/
		private Layout mSavedMarqueeModeLayout;

		/**
		* Draw marquee text with fading edges as usual
		*/
		private static final int MARQUEE_FADE_NORMAL = 0;

		/**
		* Draw marquee text as ellipsize end while inactive instead of with the fade.
		* (Useful for devices where the fade can be expensive if overdone)
		*/
		private static final int MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS = 1;

		/**
		* Draw marquee text with fading edges because it is currently active/animating.
		*/
		private static final int MARQUEE_FADE_SWITCH_SHOW_FADE = 2;

		/*
		* Kick-start the font cache for the zygote process (to pay the cost of
		* initializing freetype for our default font only once).
		@@ -997,8 +1027,13 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener
		setEllipsize(TextUtils.TruncateAt.END);
		break;
		case 4:
		setHorizontalFadingEdgeEnabled(
		ViewConfiguration.get(context).isFadingMarqueeEnabled());
		if (ViewConfiguration.get(context).isFadingMarqueeEnabled()) {
		setHorizontalFadingEdgeEnabled(true);
		mMarqueeFadeMode = MARQUEE_FADE_NORMAL;
		} else {
		setHorizontalFadingEdgeEnabled(false);
		mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS;
		}
		setEllipsize(TextUtils.TruncateAt.MARQUEE);
		break;
		}
		@@ -3069,8 +3104,13 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener

		if (text instanceof Spanned &&
		((Spanned) text).getSpanStart(TextUtils.TruncateAt.MARQUEE) >= 0) {
		setHorizontalFadingEdgeEnabled(
		ViewConfiguration.get(mContext).isFadingMarqueeEnabled());
		if (ViewConfiguration.get(mContext).isFadingMarqueeEnabled()) {
		setHorizontalFadingEdgeEnabled(true);
		mMarqueeFadeMode = MARQUEE_FADE_NORMAL;
		} else {
		setHorizontalFadingEdgeEnabled(false);
		mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS;
		}
		setEllipsize(TextUtils.TruncateAt.MARQUEE);
		}

		@@ -4763,7 +4803,8 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener

		final int layoutDirection = getResolvedLayoutDirection();
		final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection);
		if (mEllipsize == TextUtils.TruncateAt.MARQUEE) {
		if (mEllipsize == TextUtils.TruncateAt.MARQUEE &&
		mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) {
		if (!mSingleLine && getLineCount() == 1 && canMarquee() &&
		(absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) {
		canvas.translate(mLayout.getLineRight(0) - (mRight - mLeft -
		@@ -5947,7 +5988,7 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener
		mSavedHintLayout = (BoringLayout) mHintLayout;
		}

		mLayout = mHintLayout = null;
		mSavedMarqueeModeLayout = mLayout = mHintLayout = null;

		// Since it depends on the value of mLayout
		prepareCursorControllers();
		@@ -6067,73 +6108,25 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener

		Layout.Alignment alignment = getLayoutAlignment();
		boolean shouldEllipsize = mEllipsize != null && mInput == null;
		final boolean switchEllipsize = mEllipsize == TruncateAt.MARQUEE &&
		mMarqueeFadeMode != MARQUEE_FADE_NORMAL;
		TruncateAt effectiveEllipsize = mEllipsize;
		if (mEllipsize == TruncateAt.MARQUEE &&
		mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) {
		effectiveEllipsize = TruncateAt.END;
		}

		if (mTextDir == null) {
		resolveTextDirection();
		}
		if (mText instanceof Spannable) {
		mLayout = new DynamicLayout(mText, mTransformed, mTextPaint, w,
		alignment, mTextDir, mSpacingMult,
		mSpacingAdd, mIncludePad, mInput == null ? mEllipsize : null,
		ellipsisWidth);
		} else {
		if (boring == UNKNOWN_BORING) {
		boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring);
		if (boring != null) {
		mBoring = boring;
		}
		}

		if (boring != null) {
		if (boring.width <= w &&
		(mEllipsize == null \|\| boring.width <= ellipsisWidth)) {
		if (mSavedLayout != null) {
		mLayout = mSavedLayout.
		replaceOrMake(mTransformed, mTextPaint,
		w, alignment, mSpacingMult, mSpacingAdd,
		boring, mIncludePad);
		} else {
		mLayout = BoringLayout.make(mTransformed, mTextPaint,
		w, alignment, mSpacingMult, mSpacingAdd,
		boring, mIncludePad);
		}

		mSavedLayout = (BoringLayout) mLayout;
		} else if (shouldEllipsize && boring.width <= w) {
		if (mSavedLayout != null) {
		mLayout = mSavedLayout.
		replaceOrMake(mTransformed, mTextPaint,
		w, alignment, mSpacingMult, mSpacingAdd,
		boring, mIncludePad, mEllipsize,
		ellipsisWidth);
		} else {
		mLayout = BoringLayout.make(mTransformed, mTextPaint,
		w, alignment, mSpacingMult, mSpacingAdd,
		boring, mIncludePad, mEllipsize,
		ellipsisWidth);
		}
		} else if (shouldEllipsize) {
		mLayout = new StaticLayout(mTransformed,
		0, mTransformed.length(),
		mTextPaint, w, alignment, mTextDir, mSpacingMult,
		mSpacingAdd, mIncludePad, mEllipsize,
		ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE);
		} else {
		mLayout = new StaticLayout(mTransformed, mTextPaint,
		w, alignment, mTextDir, mSpacingMult, mSpacingAdd,
		mIncludePad);
		}
		} else if (shouldEllipsize) {
		mLayout = new StaticLayout(mTransformed,
		0, mTransformed.length(),
		mTextPaint, w, alignment, mTextDir, mSpacingMult,
		mSpacingAdd, mIncludePad, mEllipsize,
		ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE);
		} else {
		mLayout = new StaticLayout(mTransformed, mTextPaint,
		w, alignment, mTextDir, mSpacingMult, mSpacingAdd,
		mIncludePad);
		}
		mLayout = makeSingleLayout(w, boring, ellipsisWidth, alignment, shouldEllipsize,
		effectiveEllipsize, effectiveEllipsize == mEllipsize);
		if (switchEllipsize) {
		TruncateAt oppositeEllipsize = effectiveEllipsize == TruncateAt.MARQUEE ?
		TruncateAt.END : TruncateAt.MARQUEE;
		mSavedMarqueeModeLayout = makeSingleLayout(w, boring, ellipsisWidth, alignment,
		shouldEllipsize, oppositeEllipsize, effectiveEllipsize != mEllipsize);
		}

		shouldEllipsize = mEllipsize != null;
		@@ -6224,6 +6217,77 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener
		prepareCursorControllers();
		}

		private Layout makeSingleLayout(int w, BoringLayout.Metrics boring, int ellipsisWidth,
		Layout.Alignment alignment, boolean shouldEllipsize, TruncateAt effectiveEllipsize,
		boolean useSaved) {
		Layout result = null;
		if (mText instanceof Spannable) {
		result = new DynamicLayout(mText, mTransformed, mTextPaint, w,
		alignment, mTextDir, mSpacingMult,
		mSpacingAdd, mIncludePad, mInput == null ? effectiveEllipsize : null,
		ellipsisWidth);
		} else {
		if (boring == UNKNOWN_BORING) {
		boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring);
		if (boring != null) {
		mBoring = boring;
		}
		}

		if (boring != null) {
		if (boring.width <= w &&
		(effectiveEllipsize == null \|\| boring.width <= ellipsisWidth)) {
		if (useSaved && mSavedLayout != null) {
		result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint,
		w, alignment, mSpacingMult, mSpacingAdd,
		boring, mIncludePad);
		} else {
		result = BoringLayout.make(mTransformed, mTextPaint,
		w, alignment, mSpacingMult, mSpacingAdd,
		boring, mIncludePad);
		}

		if (useSaved) {
		mSavedLayout = (BoringLayout) result;
		}
		} else if (shouldEllipsize && boring.width <= w) {
		if (useSaved && mSavedLayout != null) {
		result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint,
		w, alignment, mSpacingMult, mSpacingAdd,
		boring, mIncludePad, effectiveEllipsize,
		ellipsisWidth);
		} else {
		result = BoringLayout.make(mTransformed, mTextPaint,
		w, alignment, mSpacingMult, mSpacingAdd,
		boring, mIncludePad, effectiveEllipsize,
		ellipsisWidth);
		}
		} else if (shouldEllipsize) {
		result = new StaticLayout(mTransformed,
		0, mTransformed.length(),
		mTextPaint, w, alignment, mTextDir, mSpacingMult,
		mSpacingAdd, mIncludePad, effectiveEllipsize,
		ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE);
		} else {
		result = new StaticLayout(mTransformed, mTextPaint,
		w, alignment, mTextDir, mSpacingMult, mSpacingAdd,
		mIncludePad);
		}
		} else if (shouldEllipsize) {
		result = new StaticLayout(mTransformed,
		0, mTransformed.length(),
		mTextPaint, w, alignment, mTextDir, mSpacingMult,
		mSpacingAdd, mIncludePad, effectiveEllipsize,
		ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE);
		} else {
		result = new StaticLayout(mTransformed, mTextPaint,
		w, alignment, mTextDir, mSpacingMult, mSpacingAdd,
		mIncludePad);
		}
		}
		return result;
		}

		private boolean compressText(float width) {
		if (isHardwareAccelerated()) return false;

		@@ -7179,7 +7243,9 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener

		private boolean canMarquee() {
		int width = (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight());
		return width > 0 && mLayout.getLineWidth(0) > width;
		return width > 0 && (mLayout.getLineWidth(0) > width \|\|
		(mMarqueeFadeMode != MARQUEE_FADE_NORMAL && mSavedMarqueeModeLayout != null &&
		mSavedMarqueeModeLayout.getLineWidth(0) > width));
		}

		private void startMarquee() {
		@@ -7193,6 +7259,16 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener
		if ((mMarquee == null \|\| mMarquee.isStopped()) && (isFocused() \|\| isSelected()) &&
		getLineCount() == 1 && canMarquee()) {

		if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) {
		mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_FADE;
		final Layout tmp = mLayout;
		mLayout = mSavedMarqueeModeLayout;
		mSavedMarqueeModeLayout = tmp;
		setHorizontalFadingEdgeEnabled(true);
		requestLayout();
		invalidate();
		}

		if (mMarquee == null) mMarquee = new Marquee(this);
		mMarquee.start(mMarqueeRepeatLimit);
		}
		@@ -7202,6 +7278,16 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener
		if (mMarquee != null && !mMarquee.isStopped()) {
		mMarquee.stop();
		}

		if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_FADE) {
		mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS;
		final Layout tmp = mSavedMarqueeModeLayout;
		mSavedMarqueeModeLayout = mLayout;
		mLayout = tmp;
		setHorizontalFadingEdgeEnabled(false);
		requestLayout();
		invalidate();
		}
		}

		private void startStopMarquee(boolean start) {
		@@ -8407,7 +8493,8 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener
		@Override
		protected float getLeftFadingEdgeStrength() {
		if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f;
		if (mEllipsize == TextUtils.TruncateAt.MARQUEE) {
		if (mEllipsize == TextUtils.TruncateAt.MARQUEE &&
		mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) {
		if (mMarquee != null && !mMarquee.isStopped()) {
		final Marquee marquee = mMarquee;
		if (marquee.shouldDrawLeftFade()) {
		@@ -8436,7 +8523,8 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener
		@Override
		protected float getRightFadingEdgeStrength() {
		if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f;
		if (mEllipsize == TextUtils.TruncateAt.MARQUEE) {
		if (mEllipsize == TextUtils.TruncateAt.MARQUEE &&
		mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) {
		if (mMarquee != null && !mMarquee.isStopped()) {
		final Marquee marquee = mMarquee;
		return (marquee.mMaxFadeScroll - marquee.mScroll) / getHorizontalFadingEdgeLength();