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      1 /*
      2  * Copyright (C) 2012 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.inputmethod.keyboard.internal;
     18 
     19 import android.graphics.Typeface;
     20 
     21 import com.android.inputmethod.latin.utils.ResourceUtils;
     22 
     23 public final class KeyDrawParams {
     24     public Typeface mTypeface;
     25 
     26     public int mLetterSize;
     27     public int mLabelSize;
     28     public int mLargeLetterSize;
     29     public int mHintLetterSize;
     30     public int mShiftedLetterHintSize;
     31     public int mHintLabelSize;
     32     public int mPreviewTextSize;
     33 
     34     public int mTextColor;
     35     public int mTextInactivatedColor;
     36     public int mTextShadowColor;
     37     public int mFunctionalTextColor;
     38     public int mHintLetterColor;
     39     public int mHintLabelColor;
     40     public int mShiftedLetterHintInactivatedColor;
     41     public int mShiftedLetterHintActivatedColor;
     42     public int mPreviewTextColor;
     43 
     44     public float mHintLabelVerticalAdjustment;
     45     public float mLabelOffCenterRatio;
     46     public float mHintLabelOffCenterRatio;
     47 
     48     public int mAnimAlpha;
     49 
     50     public KeyDrawParams() {}
     51 
     52     private KeyDrawParams(final KeyDrawParams copyFrom) {
     53         mTypeface = copyFrom.mTypeface;
     54 
     55         mLetterSize = copyFrom.mLetterSize;
     56         mLabelSize = copyFrom.mLabelSize;
     57         mLargeLetterSize = copyFrom.mLargeLetterSize;
     58         mHintLetterSize = copyFrom.mHintLetterSize;
     59         mShiftedLetterHintSize = copyFrom.mShiftedLetterHintSize;
     60         mHintLabelSize = copyFrom.mHintLabelSize;
     61         mPreviewTextSize = copyFrom.mPreviewTextSize;
     62 
     63         mTextColor = copyFrom.mTextColor;
     64         mTextInactivatedColor = copyFrom.mTextInactivatedColor;
     65         mTextShadowColor = copyFrom.mTextShadowColor;
     66         mFunctionalTextColor = copyFrom.mFunctionalTextColor;
     67         mHintLetterColor = copyFrom.mHintLetterColor;
     68         mHintLabelColor = copyFrom.mHintLabelColor;
     69         mShiftedLetterHintInactivatedColor = copyFrom.mShiftedLetterHintInactivatedColor;
     70         mShiftedLetterHintActivatedColor = copyFrom.mShiftedLetterHintActivatedColor;
     71         mPreviewTextColor = copyFrom.mPreviewTextColor;
     72 
     73         mHintLabelVerticalAdjustment = copyFrom.mHintLabelVerticalAdjustment;
     74         mLabelOffCenterRatio = copyFrom.mLabelOffCenterRatio;
     75         mHintLabelOffCenterRatio = copyFrom.mHintLabelOffCenterRatio;
     76 
     77         mAnimAlpha = copyFrom.mAnimAlpha;
     78     }
     79 
     80     public void updateParams(final int keyHeight, final KeyVisualAttributes attr) {
     81         if (attr == null) {
     82             return;
     83         }
     84 
     85         if (attr.mTypeface != null) {
     86             mTypeface = attr.mTypeface;
     87         }
     88 
     89         mLetterSize = selectTextSizeFromDimensionOrRatio(keyHeight,
     90                 attr.mLetterSize, attr.mLetterRatio, mLetterSize);
     91         mLabelSize = selectTextSizeFromDimensionOrRatio(keyHeight,
     92                 attr.mLabelSize, attr.mLabelRatio, mLabelSize);
     93         mLargeLetterSize = selectTextSize(keyHeight, attr.mLargeLetterRatio, mLargeLetterSize);
     94         mHintLetterSize = selectTextSize(keyHeight, attr.mHintLetterRatio, mHintLetterSize);
     95         mShiftedLetterHintSize = selectTextSize(keyHeight,
     96                 attr.mShiftedLetterHintRatio, mShiftedLetterHintSize);
     97         mHintLabelSize = selectTextSize(keyHeight, attr.mHintLabelRatio, mHintLabelSize);
     98         mPreviewTextSize = selectTextSize(keyHeight, attr.mPreviewTextRatio, mPreviewTextSize);
     99 
    100         mTextColor = selectColor(attr.mTextColor, mTextColor);
    101         mTextInactivatedColor = selectColor(attr.mTextInactivatedColor, mTextInactivatedColor);
    102         mTextShadowColor = selectColor(attr.mTextShadowColor, mTextShadowColor);
    103         mFunctionalTextColor = selectColor(attr.mFunctionalTextColor, mFunctionalTextColor);
    104         mHintLetterColor = selectColor(attr.mHintLetterColor, mHintLetterColor);
    105         mHintLabelColor = selectColor(attr.mHintLabelColor, mHintLabelColor);
    106         mShiftedLetterHintInactivatedColor = selectColor(
    107                 attr.mShiftedLetterHintInactivatedColor, mShiftedLetterHintInactivatedColor);
    108         mShiftedLetterHintActivatedColor = selectColor(
    109                 attr.mShiftedLetterHintActivatedColor, mShiftedLetterHintActivatedColor);
    110         mPreviewTextColor = selectColor(attr.mPreviewTextColor, mPreviewTextColor);
    111 
    112         mHintLabelVerticalAdjustment = selectFloatIfNonZero(
    113                 attr.mHintLabelVerticalAdjustment, mHintLabelVerticalAdjustment);
    114         mLabelOffCenterRatio = selectFloatIfNonZero(
    115                 attr.mLabelOffCenterRatio, mLabelOffCenterRatio);
    116         mHintLabelOffCenterRatio = selectFloatIfNonZero(
    117                 attr.mHintLabelOffCenterRatio, mHintLabelOffCenterRatio);
    118     }
    119 
    120     public KeyDrawParams mayCloneAndUpdateParams(final int keyHeight,
    121             final KeyVisualAttributes attr) {
    122         if (attr == null) {
    123             return this;
    124         }
    125         final KeyDrawParams newParams = new KeyDrawParams(this);
    126         newParams.updateParams(keyHeight, attr);
    127         return newParams;
    128     }
    129 
    130     private static int selectTextSizeFromDimensionOrRatio(final int keyHeight,
    131             final int dimens, final float ratio, final int defaultDimens) {
    132         if (ResourceUtils.isValidDimensionPixelSize(dimens)) {
    133             return dimens;
    134         }
    135         if (ResourceUtils.isValidFraction(ratio)) {
    136             return (int)(keyHeight * ratio);
    137         }
    138         return defaultDimens;
    139     }
    140 
    141     private static int selectTextSize(final int keyHeight, final float ratio,
    142             final int defaultSize) {
    143         if (ResourceUtils.isValidFraction(ratio)) {
    144             return (int)(keyHeight * ratio);
    145         }
    146         return defaultSize;
    147     }
    148 
    149     private static int selectColor(final int attrColor, final int defaultColor) {
    150         if (attrColor != 0) {
    151             return attrColor;
    152         }
    153         return defaultColor;
    154     }
    155 
    156     private static float selectFloatIfNonZero(final float attrFloat, final float defaultFloat) {
    157         if (attrFloat != 0) {
    158             return attrFloat;
    159         }
    160         return defaultFloat;
    161     }
    162 }
    163