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Fixed count suggestions strip

Browse Source 
Bug: 5023981
Change-Id: I434d23bdfb653989866d3822c978cd929a2b553c
This commit is contained in:
Tadashi G. Takaoka 2011-08-05 02:54:52 -07:00
parent 5bcf8ee66c
commit 60a004f78e
7 changed files with 118 additions and 144 deletions
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1
java/res/values-sw600dp-land/dimens.xml
View File

@ -51,5 +51,4 @@
<fraction name="key_uppercase_letter_ratio">29%</fraction>
<dimen name="candidate_strip_padding">40.0mm</dimen>
<integer name="candidate_count_in_strip">5</integer>
</resources>

1
java/res/values-sw768dp-land/dimens.xml
View File

@ -59,5 +59,4 @@
<dimen name="key_preview_offset_ics">0.05in</dimen>
<dimen name="candidate_strip_padding">40.0mm</dimen>
<integer name="candidate_count_in_strip">5</integer>
</resources>

1
java/res/values/attrs.xml
View File

@ -116,6 +116,7 @@
<attr name="colorAutoCorrect" format="color" />
<attr name="colorSuggested" format="color" />
<attr name="candidateCountInStrip" format="integer" />
<attr name="centerCandidatePercentile" format="integer" />
</declare-styleable>
<declare-styleable name="Keyboard">

1
java/res/values/dimens.xml
View File

@ -86,6 +86,7 @@
<dimen name="candidate_padding">6dip</dimen>
<dimen name="candidate_text_size">18dip</dimen>
<integer name="candidate_count_in_strip">3</integer>
<integer name="center_candidate_percentile">40</integer>
<!-- If the screen height in landscape is larger than the below value, then the keyboard
will not go into extract (fullscreen) mode. -->

2
java/res/values/donottranslate.xml
View File

@ -19,7 +19,7 @@
-->
<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
<!-- Symbols that are suggested between words -->
<string name="suggested_punctuations">!?,\u0022\u0027:();-/@_</string>
<string name="suggested_punctuations">!?,\u0022:;()\u0027-/@_</string>
<!-- Symbols that should be swapped with a magic space -->
<string name="magic_space_swapping_symbols">.,;:!?)]}\u0022</string>
<!-- Symbols that should strip a magic space -->

2
java/res/values/styles.xml
View File

@ -90,6 +90,7 @@
<item name="colorAutoCorrect">#FFFCAE00</item>
<item name="colorSuggested">#FFFCAE00</item>
<item name="candidateCountInStrip">@integer/candidate_count_in_strip</item>
<item name="centerCandidatePercentile">@integer/center_candidate_percentile</item>
</style>
<!-- Theme "Basic high contrast" -->
<style name="KeyboardView.HighContrast" parent="KeyboardView">
@ -192,6 +193,7 @@
<item name="colorAutoCorrect">#FF3DC8FF</item>
<item name="colorSuggested">#FFFFFFFF</item>
<item name="candidateCountInStrip">@integer/candidate_count_in_strip</item>
<item name="centerCandidatePercentile">@integer/center_candidate_percentile</item>
</style>
<style name="PopupMiniKeyboardAnimation">
<item name="android:windowEnterAnimation">@anim/mini_keyboard_fadein</item>

254
java/src/com/android/inputmethod/latin/CandidateView.java
View File

@ -259,12 +259,15 @@ public class CandidateView extends LinearLayout implements OnClickListener {
private static class SuggestionsStripParams extends CandidateViewParams {
private static final int DEFAULT_CANDIDATE_COUNT_IN_STRIP = 3;
private static final int DEFAULT_CENTER_CANDIDATE_PERCENTILE = 40;
private static final int PUNCTUATIONS_IN_STRIP = 6;
private final int mColorTypedWord;
private final int mColorAutoCorrect;
private final int mColorSuggestedCandidate;
private final int mCandidateCountInStrip;
private final float mCenterCandidateWeight;
private final int mCenterCandidateIndex;
private static final CharacterStyle BOLD_SPAN = new StyleSpan(Typeface.BOLD);
private static final CharacterStyle UNDERLINE_SPAN = new UnderlineSpan();
@ -278,17 +281,6 @@ public class CandidateView extends LinearLayout implements OnClickListener {
private final int mAutoCorrectHighlight;
private final ArrayList<CharSequence> mTexts = new ArrayList<CharSequence>();
private SuggestedWords mSuggestedWords;
private int mCountInStrip;
// True if the mCountInStrip suggestions can fit in suggestion strip in equally divided
// width without squeezing the text.
private boolean mCanUseFixedWidthColumns;
private int mMaxWidth;
private int mAvailableWidthForWords;
private int mConstantWidthForPaddings;
private int mVariableWidthForWords;
private float mScaleX;
public SuggestionsStripParams(Context context, AttributeSet attrs, int defStyle,
List<TextView> words, List<View> dividers, List<TextView> infos, View control) {
@ -302,8 +294,13 @@ public class CandidateView extends LinearLayout implements OnClickListener {
mCandidateCountInStrip = a.getInt(
R.styleable.CandidateView_candidateCountInStrip,
DEFAULT_CANDIDATE_COUNT_IN_STRIP);
mCenterCandidateWeight = a.getInt(
R.styleable.CandidateView_centerCandidatePercentile,
DEFAULT_CENTER_CANDIDATE_PERCENTILE) / 100.0f;
a.recycle();
mCenterCandidateIndex = mCandidateCountInStrip / 2;
mInvertedForegroundColorSpan = new ForegroundColorSpan(mColorTypedWord ^ 0x00ffffff);
mInvertedBackgroundColorSpan = new BackgroundColorSpan(mColorTypedWord);
@ -328,35 +325,38 @@ public class CandidateView extends LinearLayout implements OnClickListener {
return spannedWord;
}
private int getWordPosition(int index) {
if (index >= 2) {
return index;
}
final boolean willAutoCorrect = !mSuggestedWords.mTypedWordValid
&& mSuggestedWords.mHasMinimalSuggestion;
return willAutoCorrect ? 1 - index : index;
private static boolean willAutoCorrect(SuggestedWords suggestions) {
return !suggestions.mTypedWordValid && suggestions.mHasMinimalSuggestion;
}
private int getCandidateTextColor(int pos) {
final SuggestedWords suggestions = mSuggestedWords;
final boolean isAutoCorrect = suggestions.mHasMinimalSuggestion
&& ((pos == 1 && !suggestions.mTypedWordValid)
|| (pos == 0 && suggestions.mTypedWordValid));
private int getWordPosition(int index, SuggestedWords suggestions) {
// TODO: This works for 3 suggestions. Revisit this algorithm when there are 5 or more
// suggestions.
final int centerPos = willAutoCorrect(suggestions) ? 1 : 0;
if (index == mCenterCandidateIndex) {
return centerPos;
} else if (index == centerPos) {
return mCenterCandidateIndex;
} else {
return index;
}
}
private int getCandidateTextColor(int index, SuggestedWords suggestions, int pos) {
// TODO: Need to revisit this logic with bigram suggestions
final boolean isSuggestedCandidate = (pos != 0);
final boolean isPunctuationSuggestions = suggestions.isPunctuationSuggestions();
final int color;
if (isPunctuationSuggestions) {
color = mColorTypedWord;
} else if (isAutoCorrect) {
if (index == mCenterCandidateIndex && willAutoCorrect(suggestions)) {
color = mColorAutoCorrect;
} else if (isSuggestedCandidate) {
color = mColorSuggestedCandidate;
} else {
color = mColorTypedWord;
}
final SuggestedWordInfo info = suggestions.getInfo(pos);
final SuggestedWordInfo info = (pos < suggestions.size())
? suggestions.getInfo(pos) : null;
if (info != null && info.isPreviousSuggestedWord()) {
return applyAlpha(color, 0.5f);
} else {
@ -381,136 +381,105 @@ public class CandidateView extends LinearLayout implements OnClickListener {
public int layout(SuggestedWords suggestions, ViewGroup stripView, ViewGroup paneView,
int stripWidth) {
mSuggestedWords = suggestions;
final int maxCount = suggestions.isPunctuationSuggestions()
? PUNCTUATIONS_IN_STRIP : mCandidateCountInStrip;
final int size = suggestions.size();
setupTexts(suggestions, size);
mCountInStrip = Math.min(maxCount, size);
mScaleX = 1.0f;
calculateParameters(size, stripWidth);
if (suggestions.isPunctuationSuggestions()) {
return layoutPunctuationSuggestions(suggestions, stripView);
}
int infoX = 0;
for (int index = 0; index < mCountInStrip; index++) {
final int pos = getWordPosition(index);
final TextView word = mWords.get(pos);
final View divider = mDividers.get(pos);
final TextPaint paint = word.getPaint();
// TODO: Reorder candidates in strip as appropriate. The center candidate should
// hold the word when space is typed (valid typed word or auto corrected word).
word.setTextColor(getCandidateTextColor(pos));
final CharSequence styled = mTexts.get(pos);
final int countInStrip = mCandidateCountInStrip;
setupTexts(suggestions, countInStrip);
final int maxWidth = (suggestions.size() <= countInStrip)
? stripWidth : stripWidth - mControlWidth;
final TextView info;
if (DBG) {
final CharSequence debugInfo = getDebugInfo(mSuggestedWords, index);
if (debugInfo != null) {
info = mInfos.get(index);
info.setText(debugInfo);
} else {
info = null;
}
} else {
info = null;
int x = 0;
for (int index = 0; index < countInStrip; index++) {
final int pos = getWordPosition(index, suggestions);
if (index != 0) {
final View divider = mDividers.get(pos);
// Add divider if this isn't the left most suggestion in candidate strip.
stripView.addView(divider);
}
final CharSequence text;
final float scaleX;
if (index == 0 && mCountInStrip == 1) {
text = getEllipsizedText(styled, mMaxWidth, paint);
scaleX = paint.getTextScaleX();
} else {
text = styled;
scaleX = mScaleX;
}
word.setText(text);
word.setTextScaleX(scaleX);
if (index != 0) {
// Add divider if this isn't the left most suggestion in candidate strip.
stripView.addView(divider);
}
stripView.addView(word);
if (mCanUseFixedWidthColumns) {
setLayoutWeight(word, 1.0f, mCandidateStripHeight);
} else {
final int width = getTextWidth(text, paint) + mPadding;
setLayoutWeight(word, width, mCandidateStripHeight);
}
if (info != null) {
final CharSequence styled = mTexts.get(pos);
final TextView word = mWords.get(pos);
// Disable this candidate if the suggestion is null or empty.
word.setEnabled(!TextUtils.isEmpty(styled));
word.setTextColor(getCandidateTextColor(index, suggestions, pos));
final int width = getCandidateWidth(index, maxWidth);
final CharSequence text = getEllipsizedText(styled, width, word.getPaint());
final float scaleX = word.getTextScaleX();
word.setText(text); // TextView.setText() resets text scale x to 1.0.
word.setTextScaleX(scaleX);
stripView.addView(word);
setLayoutWeight(word, getCandidateWeight(index), mCandidateStripHeight);
if (DBG) {
final CharSequence debugInfo = getDebugInfo(suggestions, pos);
if (debugInfo != null) {
final TextView info = mInfos.get(pos);
info.setText(debugInfo);
paneView.addView(info);
info.measure(WRAP_CONTENT, WRAP_CONTENT);
final int width = info.getMeasuredWidth();
final int infoWidth = info.getMeasuredWidth();
final int y = info.getMeasuredHeight();
FrameLayoutCompatUtils.placeViewAt(info, infoX, 0, width, y);
infoX += width * 2;
FrameLayoutCompatUtils.placeViewAt(info, x, 0, infoWidth, y);
x += infoWidth * 2;
}
}
}
return mCountInStrip;
return countInStrip;
}
private void calculateParameters(int size, int maxWidth) {
do {
mMaxWidth = maxWidth;
if (size > mCountInStrip) {
mMaxWidth -= mControlWidth;
}
tryLayout();
if (mCanUseFixedWidthColumns) {
return;
}
if (mVariableWidthForWords <= mAvailableWidthForWords) {
return;
}
final float scaleX = mAvailableWidthForWords / (float)mVariableWidthForWords;
if (scaleX >= MIN_TEXT_XSCALE) {
mScaleX = scaleX;
return;
}
mCountInStrip--;
} while (mCountInStrip > 1);
private int getCandidateWidth(int index, int maxWidth) {
final int paddings = mPadding * mCandidateCountInStrip;
final int dividers = mDividerWidth * (mCandidateCountInStrip - 1);
final int availableWidth = maxWidth - paddings - dividers;
return (int)(availableWidth * getCandidateWeight(index));
}
private void tryLayout() {
final int maxCount = mCountInStrip;
final int dividers = mDividerWidth * (maxCount - 1);
mConstantWidthForPaddings = dividers + mPadding * maxCount;
mAvailableWidthForWords = mMaxWidth - mConstantWidthForPaddings;
mPaint.setTextScaleX(mScaleX);
final int maxFixedWidthForWord = (mMaxWidth - dividers) / maxCount - mPadding;
mCanUseFixedWidthColumns = true;
mVariableWidthForWords = 0;
for (int i = 0; i < maxCount; i++) {
final int width = getTextWidth(mTexts.get(i), mPaint);
if (width > maxFixedWidthForWord)
mCanUseFixedWidthColumns = false;
mVariableWidthForWords += width;
private float getCandidateWeight(int index) {
if (index == mCenterCandidateIndex) {
return mCenterCandidateWeight;
} else {
// TODO: Revisit this for cases of 5 or more suggestions
return (1.0f - mCenterCandidateWeight) / (mCandidateCountInStrip - 1);
}
}
private void setupTexts(SuggestedWords suggestions, int count) {
private void setupTexts(SuggestedWords suggestions, int countInStrip) {
mTexts.clear();
for (int i = 0; i < count; i++) {
final CharSequence word = suggestions.getWord(i);
final boolean isAutoCorrect = suggestions.mHasMinimalSuggestion
&& ((i == 1 && !suggestions.mTypedWordValid)
|| (i == 0 && suggestions.mTypedWordValid));
final int count = Math.min(suggestions.size(), countInStrip);
for (int pos = 0; pos < count; pos++) {
final CharSequence word = suggestions.getWord(pos);
final boolean isAutoCorrect = pos == 1 && willAutoCorrect(suggestions);
final CharSequence styled = getStyledCandidateWord(word, isAutoCorrect);
mTexts.add(styled);
}
for (int pos = count; pos < countInStrip; pos++) {
// Make this inactive for touches in layout().
mTexts.add(null);
}
}
@Override
public String toString() {
return String.format(
"count=%d width=%d avail=%d fixcol=%s scaleX=%4.2f const=%d var=%d",
mCountInStrip, mMaxWidth, mAvailableWidthForWords, mCanUseFixedWidthColumns,
mScaleX, mConstantWidthForPaddings, mVariableWidthForWords);
private int layoutPunctuationSuggestions(SuggestedWords suggestions, ViewGroup stripView) {
final int countInStrip = Math.min(suggestions.size(), PUNCTUATIONS_IN_STRIP);
for (int index = 0; index < countInStrip; index++) {
if (index != 0) {
// Add divider if this isn't the left most suggestion in candidate strip.
stripView.addView(mDividers.get(index));
}
final TextView word = mWords.get(index);
word.setEnabled(true);
word.setTextColor(mColorTypedWord);
final CharSequence text = suggestions.getWord(index);
word.setText(text);
word.setTextScaleX(1.0f);
stripView.addView(word);
setLayoutWeight(word, 1.0f, mCandidateStripHeight);
}
return countInStrip;
}
}
@ -548,13 +517,13 @@ public class CandidateView extends LinearLayout implements OnClickListener {
mPreviewPopup.setBackgroundDrawable(null);
mCandidatesStrip = (ViewGroup)findViewById(R.id.candidates_strip);
for (int i = 0; i < MAX_SUGGESTIONS; i++) {
for (int pos = 0; pos < MAX_SUGGESTIONS; pos++) {
final TextView word = (TextView)inflater.inflate(R.layout.candidate_word, null);
word.setTag(i);
word.setTag(pos);
word.setOnClickListener(this);
mWords.add(word);
final View divider = inflater.inflate(R.layout.candidate_divider, null);
divider.setTag(i);
divider.setTag(pos);
divider.setOnClickListener(this);
mDividers.add(divider);
mInfos.add((TextView)inflater.inflate(R.layout.candidate_info, null));
@ -649,7 +618,7 @@ public class CandidateView extends LinearLayout implements OnClickListener {
}
private static CharSequence getDebugInfo(SuggestedWords suggestions, int pos) {
if (DBG) {
if (DBG && pos < suggestions.size()) {
final SuggestedWordInfo wordInfo = suggestions.getInfo(pos);
if (wordInfo != null) {
final CharSequence debugInfo = wordInfo.getDebugString();
@ -695,14 +664,17 @@ public class CandidateView extends LinearLayout implements OnClickListener {
TextPaint paint) {
paint.setTextScaleX(1.0f);
final int width = getTextWidth(text, paint);
final float scaleX = Math.min(maxWidth / (float)width, 1.0f);
if (width <= maxWidth) {
return text;
}
final float scaleX = maxWidth / (float)width;
if (scaleX >= MIN_TEXT_XSCALE) {
paint.setTextScaleX(scaleX);
return text;
}
// Note that TextUtils.ellipsize() use text-x-scale as 1.0 if ellipsize is needed. To get
// squeezed and ellipsezed text, passes enlarged width (maxWidth / MIN_TEXT_XSCALE).
// squeezed and ellipsized text, passes enlarged width (maxWidth / MIN_TEXT_XSCALE).
final CharSequence ellipsized = TextUtils.ellipsize(
text, paint, maxWidth / MIN_TEXT_XSCALE, TextUtils.TruncateAt.MIDDLE);
paint.setTextScaleX(MIN_TEXT_XSCALE);