Optimize drawing key text shadow layer
Change-Id: Id226fe8042ba0f538d5109459a3615d7e7113d7fmain
parent
61ddac28de
commit
41f9f1ef70
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@ -74,6 +74,7 @@
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<!-- Size of the text for spacebar language label, in the proportion of key height. -->
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<attr name="languageOnSpacebarTextRatio" format="fraction" />
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<attr name="languageOnSpacebarTextColor" format="color" />
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<attr name="languageOnSpacebarTextShadowRadius" format="float" />
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<attr name="languageOnSpacebarTextShadowColor" format="color" />
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<!-- Background image for the spacebar. -->
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<attr name="spacebarBackground" format="reference" />
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@ -26,7 +26,6 @@
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<color name="suggested_word_color_ics">#B233B5E5</color>
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<color name="highlight_translucent_color_ics">#9933B5E5</color>
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<color name="key_text_color_holo">@android:color/white</color>
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<color name="key_text_shadow_color_holo">@android:color/transparent</color>
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<color name="key_text_inactivated_color_holo">#66E0E4E5</color>
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<color name="key_hint_letter_color_holo">#80000000</color>
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<color name="key_hint_label_color_holo">#A0FFFFFF</color>
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@ -56,8 +56,8 @@
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<item name="keyShiftedLetterHintInactivatedColor">@color/key_shifted_letter_hint_inactivated_color_holo</item>
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<item name="keyShiftedLetterHintActivatedColor">@color/key_shifted_letter_hint_activated_color_holo</item>
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<item name="keyPreviewTextColor">@color/key_text_color_holo</item>
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<item name="keyTextShadowColor">@color/key_text_shadow_color_holo</item>
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<item name="keyTextShadowRadius">0.0</item>
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<!-- A negative value to disable key text shadow layer. -->
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<item name="keyTextShadowRadius">-1.0</item>
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</style>
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<style
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name="MainKeyboardView.ICS"
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@ -71,6 +71,7 @@
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<item name="autoCorrectionSpacebarLedEnabled">false</item>
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<item name="autoCorrectionSpacebarLedIcon">@drawable/sym_keyboard_space_led_holo</item>
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<item name="languageOnSpacebarTextColor">@color/spacebar_text_color_holo</item>
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<item name="languageOnSpacebarTextShadowRadius">1.0</item>
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<item name="languageOnSpacebarTextShadowColor">@color/spacebar_text_shadow_color_holo</item>
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<item name="spacebarBackground">@drawable/btn_keyboard_spacebar_ics</item>
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</style>
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@ -56,8 +56,8 @@
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<item name="keyShiftedLetterHintInactivatedColor">@color/key_shifted_letter_hint_inactivated_color_holo</item>
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<item name="keyShiftedLetterHintActivatedColor">@color/key_shifted_letter_hint_activated_color_holo</item>
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<item name="keyPreviewTextColor">@color/key_text_color_holo</item>
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<item name="keyTextShadowColor">@color/key_text_shadow_color_holo</item>
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<item name="keyTextShadowRadius">0.0</item>
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<!-- A negative value to disable key text shadow layer. -->
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<item name="keyTextShadowRadius">-1.0</item>
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</style>
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<style
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name="MainKeyboardView.KLP"
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@ -71,6 +71,7 @@
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<item name="autoCorrectionSpacebarLedEnabled">false</item>
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<item name="autoCorrectionSpacebarLedIcon">@drawable/sym_keyboard_space_led_holo</item>
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<item name="languageOnSpacebarTextColor">@color/spacebar_text_color_holo</item>
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<item name="languageOnSpacebarTextShadowRadius">1.0</item>
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<item name="languageOnSpacebarTextShadowColor">@color/spacebar_text_shadow_color_holo</item>
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<item name="spacebarBackground">@drawable/btn_keyboard_spacebar_klp</item>
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</style>
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@ -56,8 +56,8 @@
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<item name="keyShiftedLetterHintInactivatedColor">@color/key_shifted_letter_hint_inactivated_color_holo</item>
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<item name="keyShiftedLetterHintActivatedColor">@color/key_shifted_letter_hint_activated_color_holo</item>
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<item name="keyPreviewTextColor">@color/key_text_color_holo</item>
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<item name="keyTextShadowColor">@color/key_text_shadow_color_holo</item>
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<item name="keyTextShadowRadius">0.0</item>
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<!-- A negative value to disable key text shadow layer. -->
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<item name="keyTextShadowRadius">-1.0</item>
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</style>
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<style
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name="MainKeyboardView.LMP"
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@ -71,6 +71,7 @@
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<item name="autoCorrectionSpacebarLedEnabled">false</item>
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<item name="autoCorrectionSpacebarLedIcon">@drawable/sym_keyboard_space_led_holo</item>
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<item name="languageOnSpacebarTextColor">@color/spacebar_text_color_holo</item>
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<item name="languageOnSpacebarTextShadowRadius">1.0</item>
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<item name="languageOnSpacebarTextShadowColor">@color/spacebar_text_shadow_color_holo</item>
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<item name="spacebarBackground">@drawable/btn_keyboard_spacebar_lmp</item>
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</style>
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@ -82,6 +82,7 @@ public class KeyboardView extends View {
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private final float mVerticalCorrection;
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private final Drawable mKeyBackground;
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private final Rect mKeyBackgroundPadding = new Rect();
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private static final float KET_TEXT_SHADOW_RADIUS_DISABLED = -1.0f;
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// HORIZONTAL ELLIPSIS "...", character for popup hint.
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private static final String POPUP_HINT_CHAR = "\u2026";
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@ -133,7 +134,7 @@ public class KeyboardView extends View {
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mKeyShiftedLetterHintPadding = keyboardViewAttr.getDimension(
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R.styleable.KeyboardView_keyShiftedLetterHintPadding, 0.0f);
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mKeyTextShadowRadius = keyboardViewAttr.getFloat(
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R.styleable.KeyboardView_keyTextShadowRadius, 0.0f);
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R.styleable.KeyboardView_keyTextShadowRadius, KET_TEXT_SHADOW_RADIUS_DISABLED);
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mVerticalCorrection = keyboardViewAttr.getDimension(
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R.styleable.KeyboardView_verticalCorrection, 0.0f);
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keyboardViewAttr.recycle();
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@ -414,18 +415,23 @@ public class KeyboardView extends View {
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}
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}
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paint.setColor(key.selectTextColor(params));
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if (key.isEnabled()) {
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// Set a drop shadow for the text
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paint.setColor(key.selectTextColor(params));
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// Set a drop shadow for the text if the shadow radius is positive value.
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if (mKeyTextShadowRadius > 0.0f) {
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paint.setShadowLayer(mKeyTextShadowRadius, 0.0f, 0.0f, params.mTextShadowColor);
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} else {
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paint.clearShadowLayer();
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}
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} else {
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// Make label invisible
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paint.setColor(Color.TRANSPARENT);
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paint.clearShadowLayer();
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}
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blendAlpha(paint, params.mAnimAlpha);
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canvas.drawText(label, 0, label.length(), positionX, baseline, paint);
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// Turn off drop shadow and reset x-scale.
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paint.setShadowLayer(0.0f, 0.0f, 0.0f, Color.TRANSPARENT);
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paint.clearShadowLayer();
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paint.setTextScaleX(1.0f);
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if (icon != null) {
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@ -74,6 +74,7 @@ import java.util.WeakHashMap;
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* @attr ref R.styleable#MainKeyboardView_autoCorrectionSpacebarLedIcon
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* @attr ref R.styleable#MainKeyboardView_languageOnSpacebarTextRatio
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* @attr ref R.styleable#MainKeyboardView_languageOnSpacebarTextColor
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* @attr ref R.styleable#MainKeyboardView_languageOnSpacebarTextShadowRadius
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* @attr ref R.styleable#MainKeyboardView_languageOnSpacebarTextShadowColor
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* @attr ref R.styleable#MainKeyboardView_spacebarBackground
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* @attr ref R.styleable#MainKeyboardView_languageOnSpacebarFinalAlpha
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@ -129,7 +130,9 @@ public final class MainKeyboardView extends KeyboardView implements PointerTrack
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private final float mLanguageOnSpacebarTextRatio;
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private float mLanguageOnSpacebarTextSize;
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private final int mLanguageOnSpacebarTextColor;
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private final float mLanguageOnSpacebarTextShadowRadius;
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private final int mLanguageOnSpacebarTextShadowColor;
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private static final float LANGUAGE_ON_SPACEBAR_TEXT_SHADOW_RADIUS_DISABLED = -1.0f;
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// The minimum x-scale to fit the language name on spacebar.
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private static final float MINIMUM_XSCALE_OF_LANGUAGE_NAME = 0.8f;
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// Stuff to draw auto correction LED on spacebar.
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@ -231,6 +234,9 @@ public final class MainKeyboardView extends KeyboardView implements PointerTrack
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R.styleable.MainKeyboardView_languageOnSpacebarTextRatio, 1, 1, 1.0f);
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mLanguageOnSpacebarTextColor = mainKeyboardViewAttr.getColor(
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R.styleable.MainKeyboardView_languageOnSpacebarTextColor, 0);
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mLanguageOnSpacebarTextShadowRadius = mainKeyboardViewAttr.getFloat(
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R.styleable.MainKeyboardView_languageOnSpacebarTextShadowRadius,
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LANGUAGE_ON_SPACEBAR_TEXT_SHADOW_RADIUS_DISABLED);
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mLanguageOnSpacebarTextShadowColor = mainKeyboardViewAttr.getColor(
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R.styleable.MainKeyboardView_languageOnSpacebarTextShadowColor, 0);
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mLanguageOnSpacebarFinalAlpha = mainKeyboardViewAttr.getInt(
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@ -948,12 +954,17 @@ public final class MainKeyboardView extends KeyboardView implements PointerTrack
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final float descent = paint.descent();
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final float textHeight = -paint.ascent() + descent;
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final float baseline = height / 2 + textHeight / 2;
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paint.setColor(mLanguageOnSpacebarTextShadowColor);
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paint.setAlpha(mLanguageOnSpacebarAnimAlpha);
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canvas.drawText(language, width / 2, baseline - descent - 1, paint);
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if (mLanguageOnSpacebarTextShadowRadius > 0.0f) {
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paint.setShadowLayer(mLanguageOnSpacebarTextShadowRadius, 0, 0,
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mLanguageOnSpacebarTextShadowColor);
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} else {
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paint.clearShadowLayer();
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}
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paint.setColor(mLanguageOnSpacebarTextColor);
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paint.setAlpha(mLanguageOnSpacebarAnimAlpha);
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canvas.drawText(language, width / 2, baseline - descent, paint);
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paint.clearShadowLayer();
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paint.setTextScaleX(1.0f);
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}
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// Draw the spacebar icon at the bottom
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