Use different reference character for hit label (2ed13003) · Commits · e / os / android_packages_inputmethods_LatinIME

java/res/values/dimens.xml

+1 −1

Original line number	Diff line number	Diff line
		@@ -70,7 +70,7 @@
		<dimen name="key_preview_offset">0.1in</dimen>

		<dimen name="key_label_horizontal_padding">4dip</dimen>
		<dimen name="key_hint_letter_padding">2dp</dimen>
		<dimen name="key_hint_letter_padding">1dp</dimen>
		<dimen name="key_uppercase_letter_padding">2dp</dimen>

		<dimen name="key_preview_height_ics">80sp</dimen>

java/src/com/android/inputmethod/keyboard/KeyboardView.java

+43 −33

Original line number	Diff line number	Diff line
		@@ -124,7 +124,8 @@ public class KeyboardView extends View implements PointerTracker.DrawingProxy {
		// This map caches key label text width in pixel as value and key label text size as map key.
		private static final HashMap<Integer, Float> sTextWidthCache =
		new HashMap<Integer, Float>();
		private static final String KEY_LABEL_REFERENCE_CHAR = "M";
		private static final char[] KEY_LABEL_REFERENCE_CHAR = { 'M' };
		private static final char[] KEY_NUMERIC_HINT_LABEL_REFERENCE_CHAR = { '8' };

		private final DrawingHandler mDrawingHandler = new DrawingHandler(this);

		@@ -545,8 +546,8 @@ public class KeyboardView extends View implements PointerTracker.DrawingProxy {
		final int labelSize = key.selectTextSize(params.mKeyLetterSize,
		params.mKeyLargeLetterSize, params.mKeyLabelSize, params.mKeyHintLabelSize);
		paint.setTextSize(labelSize);
		final float labelCharHeight = getCharHeight(paint);
		final float labelCharWidth = getCharWidth(paint);
		final float labelCharHeight = getCharHeight(KEY_LABEL_REFERENCE_CHAR, paint);
		final float labelCharWidth = getCharWidth(KEY_LABEL_REFERENCE_CHAR, paint);

		// Vertical label text alignment.
		final float baseline = centerY + labelCharHeight / 2;
		@@ -634,20 +635,25 @@ public class KeyboardView extends View implements PointerTracker.DrawingProxy {
		}
		paint.setColor(hintColor);
		paint.setTextSize(hintSize);
		final float hintCharWidth = getCharWidth(paint);
		final float hintX, hintY;
		if (key.hasHintLabel()) {
		// The hint label is placed just right of the key label. Used mainly on
		// "phone number" layout.
		// TODO: Generalize the following calculations.
		hintX = positionX + hintCharWidth * 2;
		hintY = centerY + getCharHeight(paint) / 2;
		hintX = positionX + getCharWidth(KEY_LABEL_REFERENCE_CHAR, paint) * 2;
		hintY = centerY + getCharHeight(KEY_LABEL_REFERENCE_CHAR, paint) / 2;
		paint.setTextAlign(Align.LEFT);
		} else if (key.hasUppercaseLetter()) {
		hintX = keyWidth - params.mKeyUppercaseLetterPadding - hintCharWidth / 2;
		hintY = -paint.ascent() + params.mKeyUppercaseLetterPadding;
		// The hint label is placed at top-right corner of the key. Used mainly on tablet.
		hintX = keyWidth - params.mKeyUppercaseLetterPadding
		- getCharWidth(KEY_LABEL_REFERENCE_CHAR, paint) / 2;
		hintY = -paint.ascent();
		paint.setTextAlign(Align.CENTER);
		} else { // key.hasHintLetter()
		hintX = keyWidth - params.mKeyHintLetterPadding - hintCharWidth / 2;
		hintY = -paint.ascent() + params.mKeyHintLetterPadding;
		// The hint label is placed at top-right corner of the key. Used mainly on phone.
		hintX = keyWidth - params.mKeyHintLetterPadding
		- getCharWidth(KEY_NUMERIC_HINT_LABEL_REFERENCE_CHAR, paint) / 2;
		hintY = -paint.ascent();
		paint.setTextAlign(Align.CENTER);
		}
		canvas.drawText(hint, 0, hint.length(), hintX, hintY, paint);
		@@ -690,7 +696,8 @@ public class KeyboardView extends View implements PointerTracker.DrawingProxy {
		paint.setTextSize(params.mKeyHintLetterSize);
		paint.setColor(params.mKeyHintLabelColor);
		paint.setTextAlign(Align.CENTER);
		final float hintX = keyWidth - params.mKeyHintLetterPadding - getCharWidth(paint) / 2;
		final float hintX = keyWidth - params.mKeyHintLetterPadding
		- getCharWidth(KEY_LABEL_REFERENCE_CHAR, paint) / 2;
		final float hintY = keyHeight - params.mKeyHintLetterPadding;
		canvas.drawText(POPUP_HINT_CHAR, hintX, hintY, paint);

		@@ -704,37 +711,40 @@ public class KeyboardView extends View implements PointerTracker.DrawingProxy {

		private static final Rect sTextBounds = new Rect();

		private static float getCharHeight(Paint paint) {
		final int labelSize = (int)paint.getTextSize();
		final Float cachedValue = sTextHeightCache.get(labelSize);
		if (cachedValue != null)
		return cachedValue;

		paint.getTextBounds(KEY_LABEL_REFERENCE_CHAR, 0, 1, sTextBounds);
		final float height = sTextBounds.height();
		sTextHeightCache.put(labelSize, height);
		return height;
		}

		private static float getCharWidth(Paint paint) {
		private static int getCharGeometryCacheKey(char reference, Paint paint) {
		final int labelSize = (int)paint.getTextSize();
		final Typeface face = paint.getTypeface();
		final Integer key;
		final int codePointOffset = reference << 15;
		if (face == Typeface.DEFAULT) {
		key = labelSize;
		return codePointOffset + labelSize;
		} else if (face == Typeface.DEFAULT_BOLD) {
		key = labelSize + 1000;
		return codePointOffset + labelSize + 0x1000;
		} else if (face == Typeface.MONOSPACE) {
		key = labelSize + 2000;
		return codePointOffset + labelSize + 0x2000;
		} else {
		key = labelSize;
		return codePointOffset + labelSize;
		}
		}

		final Float cached = sTextWidthCache.get(key);
		if (cached != null)
		return cached;
		private static float getCharHeight(char[] character, Paint paint) {
		final Integer key = getCharGeometryCacheKey(character[0], paint);
		final Float cachedValue = sTextHeightCache.get(key);
		if (cachedValue != null)
		return cachedValue;

		paint.getTextBounds(character, 0, 1, sTextBounds);
		final float height = sTextBounds.height();
		sTextHeightCache.put(key, height);
		return height;
		}

		private static float getCharWidth(char[] character, Paint paint) {
		final Integer key = getCharGeometryCacheKey(character[0], paint);
		final Float cachedValue = sTextWidthCache.get(key);
		if (cachedValue != null)
		return cachedValue;

		paint.getTextBounds(KEY_LABEL_REFERENCE_CHAR, 0, 1, sTextBounds);
		paint.getTextBounds(character, 0, 1, sTextBounds);
		final float width = sTextBounds.width();
		sTextWidthCache.put(key, width);
		return width;