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Optimize drawing key text shadow layer 

Change-Id: Id226fe8042ba0f538d5109459a3615d7e7113d7f
main
Tadashi G. Takaoka 2014-05-13 11:19:43 +09:00
parent 61ddac28de
commit 41f9f1ef70
7 changed files with 35 additions and 15 deletions
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1
java/res/values/attrs.xml
View File

@ -74,6 +74,7 @@
<!-- Size of the text for spacebar language label, in the proportion of key height. -->
<attr name="languageOnSpacebarTextRatio" format="fraction" />
<attr name="languageOnSpacebarTextColor" format="color" />
<attr name="languageOnSpacebarTextShadowRadius" format="float" />
<attr name="languageOnSpacebarTextShadowColor" format="color" />
<!-- Background image for the spacebar. -->
<attr name="spacebarBackground" format="reference" />

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

@ -26,7 +26,6 @@
<color name="suggested_word_color_ics">#B233B5E5</color>
<color name="highlight_translucent_color_ics">#9933B5E5</color>
<color name="key_text_color_holo">@android:color/white</color>
<color name="key_text_shadow_color_holo">@android:color/transparent</color>
<color name="key_text_inactivated_color_holo">#66E0E4E5</color>
<color name="key_hint_letter_color_holo">#80000000</color>
<color name="key_hint_label_color_holo">#A0FFFFFF</color>

5
java/res/values/themes-ics.xml
View File

@ -56,8 +56,8 @@
<item name="keyShiftedLetterHintInactivatedColor">@color/key_shifted_letter_hint_inactivated_color_holo</item>
<item name="keyShiftedLetterHintActivatedColor">@color/key_shifted_letter_hint_activated_color_holo</item>
<item name="keyPreviewTextColor">@color/key_text_color_holo</item>
<item name="keyTextShadowColor">@color/key_text_shadow_color_holo</item>
<item name="keyTextShadowRadius">0.0</item>
<!-- A negative value to disable key text shadow layer. -->
<item name="keyTextShadowRadius">-1.0</item>
</style>
<style
name="MainKeyboardView.ICS"
@ -71,6 +71,7 @@
<item name="autoCorrectionSpacebarLedEnabled">false</item>
<item name="autoCorrectionSpacebarLedIcon">@drawable/sym_keyboard_space_led_holo</item>
<item name="languageOnSpacebarTextColor">@color/spacebar_text_color_holo</item>
<item name="languageOnSpacebarTextShadowRadius">1.0</item>
<item name="languageOnSpacebarTextShadowColor">@color/spacebar_text_shadow_color_holo</item>
<item name="spacebarBackground">@drawable/btn_keyboard_spacebar_ics</item>
</style>

5
java/res/values/themes-klp.xml
View File

@ -56,8 +56,8 @@
<item name="keyShiftedLetterHintInactivatedColor">@color/key_shifted_letter_hint_inactivated_color_holo</item>
<item name="keyShiftedLetterHintActivatedColor">@color/key_shifted_letter_hint_activated_color_holo</item>
<item name="keyPreviewTextColor">@color/key_text_color_holo</item>
<item name="keyTextShadowColor">@color/key_text_shadow_color_holo</item>
<item name="keyTextShadowRadius">0.0</item>
<!-- A negative value to disable key text shadow layer. -->
<item name="keyTextShadowRadius">-1.0</item>
</style>
<style
name="MainKeyboardView.KLP"
@ -71,6 +71,7 @@
<item name="autoCorrectionSpacebarLedEnabled">false</item>
<item name="autoCorrectionSpacebarLedIcon">@drawable/sym_keyboard_space_led_holo</item>
<item name="languageOnSpacebarTextColor">@color/spacebar_text_color_holo</item>
<item name="languageOnSpacebarTextShadowRadius">1.0</item>
<item name="languageOnSpacebarTextShadowColor">@color/spacebar_text_shadow_color_holo</item>
<item name="spacebarBackground">@drawable/btn_keyboard_spacebar_klp</item>
</style>

5
java/res/values/themes-lmp.xml
View File

@ -56,8 +56,8 @@
<item name="keyShiftedLetterHintInactivatedColor">@color/key_shifted_letter_hint_inactivated_color_holo</item>
<item name="keyShiftedLetterHintActivatedColor">@color/key_shifted_letter_hint_activated_color_holo</item>
<item name="keyPreviewTextColor">@color/key_text_color_holo</item>
<item name="keyTextShadowColor">@color/key_text_shadow_color_holo</item>
<item name="keyTextShadowRadius">0.0</item>
<!-- A negative value to disable key text shadow layer. -->
<item name="keyTextShadowRadius">-1.0</item>
</style>
<style
name="MainKeyboardView.LMP"
@ -71,6 +71,7 @@
<item name="autoCorrectionSpacebarLedEnabled">false</item>
<item name="autoCorrectionSpacebarLedIcon">@drawable/sym_keyboard_space_led_holo</item>
<item name="languageOnSpacebarTextColor">@color/spacebar_text_color_holo</item>
<item name="languageOnSpacebarTextShadowRadius">1.0</item>
<item name="languageOnSpacebarTextShadowColor">@color/spacebar_text_shadow_color_holo</item>
<item name="spacebarBackground">@drawable/btn_keyboard_spacebar_lmp</item>
</style>

14
java/src/com/android/inputmethod/keyboard/KeyboardView.java
View File

@ -82,6 +82,7 @@ public class KeyboardView extends View {
private final float mVerticalCorrection;
private final Drawable mKeyBackground;
private final Rect mKeyBackgroundPadding = new Rect();
private static final float KET_TEXT_SHADOW_RADIUS_DISABLED = -1.0f;
// HORIZONTAL ELLIPSIS "...", character for popup hint.
private static final String POPUP_HINT_CHAR = "\u2026";
@ -133,7 +134,7 @@ public class KeyboardView extends View {
mKeyShiftedLetterHintPadding = keyboardViewAttr.getDimension(
R.styleable.KeyboardView_keyShiftedLetterHintPadding, 0.0f);
mKeyTextShadowRadius = keyboardViewAttr.getFloat(
R.styleable.KeyboardView_keyTextShadowRadius, 0.0f);
R.styleable.KeyboardView_keyTextShadowRadius, KET_TEXT_SHADOW_RADIUS_DISABLED);
mVerticalCorrection = keyboardViewAttr.getDimension(
R.styleable.KeyboardView_verticalCorrection, 0.0f);
keyboardViewAttr.recycle();
@ -414,18 +415,23 @@ public class KeyboardView extends View {
}
}
paint.setColor(key.selectTextColor(params));
if (key.isEnabled()) {
// Set a drop shadow for the text
paint.setColor(key.selectTextColor(params));
// Set a drop shadow for the text if the shadow radius is positive value.
if (mKeyTextShadowRadius > 0.0f) {
paint.setShadowLayer(mKeyTextShadowRadius, 0.0f, 0.0f, params.mTextShadowColor);
} else {
paint.clearShadowLayer();
}
} else {
// Make label invisible
paint.setColor(Color.TRANSPARENT);
paint.clearShadowLayer();
}
blendAlpha(paint, params.mAnimAlpha);
canvas.drawText(label, 0, label.length(), positionX, baseline, paint);
// Turn off drop shadow and reset x-scale.
paint.setShadowLayer(0.0f, 0.0f, 0.0f, Color.TRANSPARENT);
paint.clearShadowLayer();
paint.setTextScaleX(1.0f);
if (icon != null) {

17
java/src/com/android/inputmethod/keyboard/MainKeyboardView.java
View File

@ -74,6 +74,7 @@ import java.util.WeakHashMap;
* @attr ref R.styleable#MainKeyboardView_autoCorrectionSpacebarLedIcon
* @attr ref R.styleable#MainKeyboardView_languageOnSpacebarTextRatio
* @attr ref R.styleable#MainKeyboardView_languageOnSpacebarTextColor
* @attr ref R.styleable#MainKeyboardView_languageOnSpacebarTextShadowRadius
* @attr ref R.styleable#MainKeyboardView_languageOnSpacebarTextShadowColor
* @attr ref R.styleable#MainKeyboardView_spacebarBackground
* @attr ref R.styleable#MainKeyboardView_languageOnSpacebarFinalAlpha
@ -129,7 +130,9 @@ public final class MainKeyboardView extends KeyboardView implements PointerTrack
private final float mLanguageOnSpacebarTextRatio;
private float mLanguageOnSpacebarTextSize;
private final int mLanguageOnSpacebarTextColor;
private final float mLanguageOnSpacebarTextShadowRadius;
private final int mLanguageOnSpacebarTextShadowColor;
private static final float LANGUAGE_ON_SPACEBAR_TEXT_SHADOW_RADIUS_DISABLED = -1.0f;
// The minimum x-scale to fit the language name on spacebar.
private static final float MINIMUM_XSCALE_OF_LANGUAGE_NAME = 0.8f;
// Stuff to draw auto correction LED on spacebar.
@ -231,6 +234,9 @@ public final class MainKeyboardView extends KeyboardView implements PointerTrack
R.styleable.MainKeyboardView_languageOnSpacebarTextRatio, 1, 1, 1.0f);
mLanguageOnSpacebarTextColor = mainKeyboardViewAttr.getColor(
R.styleable.MainKeyboardView_languageOnSpacebarTextColor, 0);
mLanguageOnSpacebarTextShadowRadius = mainKeyboardViewAttr.getFloat(
R.styleable.MainKeyboardView_languageOnSpacebarTextShadowRadius,
LANGUAGE_ON_SPACEBAR_TEXT_SHADOW_RADIUS_DISABLED);
mLanguageOnSpacebarTextShadowColor = mainKeyboardViewAttr.getColor(
R.styleable.MainKeyboardView_languageOnSpacebarTextShadowColor, 0);
mLanguageOnSpacebarFinalAlpha = mainKeyboardViewAttr.getInt(
@ -948,12 +954,17 @@ public final class MainKeyboardView extends KeyboardView implements PointerTrack
final float descent = paint.descent();
final float textHeight = -paint.ascent() + descent;
final float baseline = height / 2 + textHeight / 2;
paint.setColor(mLanguageOnSpacebarTextShadowColor);
paint.setAlpha(mLanguageOnSpacebarAnimAlpha);
canvas.drawText(language, width / 2, baseline - descent - 1, paint);
if (mLanguageOnSpacebarTextShadowRadius > 0.0f) {
paint.setShadowLayer(mLanguageOnSpacebarTextShadowRadius, 0, 0,
mLanguageOnSpacebarTextShadowColor);
} else {
paint.clearShadowLayer();
}
paint.setColor(mLanguageOnSpacebarTextColor);
paint.setAlpha(mLanguageOnSpacebarAnimAlpha);
canvas.drawText(language, width / 2, baseline - descent, paint);
paint.clearShadowLayer();
paint.setTextScaleX(1.0f);
}
// Draw the spacebar icon at the bottom