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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.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 mLargeLabelSize;
     30     public int mHintLetterSize;
     31     public int mShiftedLetterHintSize;
     32     public int mHintLabelSize;
     33     public int mPreviewTextSize;
     34 
     35     public int mTextColor;
     36     public int mTextInactivatedColor;
     37     public int mTextShadowColor;
     38     public int mHintLetterColor;
     39     public int mHintLabelColor;
     40     public int mShiftedLetterHintInactivatedColor;
     41     public int mShiftedLetterHintActivatedColor;
     42     public int mPreviewTextColor;
     43 
     44     public int mAnimAlpha;
     45 
     46     public KeyDrawParams() {}
     47 
     48     private KeyDrawParams(final KeyDrawParams copyFrom) {
     49         mTypeface = copyFrom.mTypeface;
     50 
     51         mLetterSize = copyFrom.mLetterSize;
     52         mLabelSize = copyFrom.mLabelSize;
     53         mLargeLetterSize = copyFrom.mLargeLetterSize;
     54         mLargeLabelSize = copyFrom.mLargeLabelSize;
     55         mHintLetterSize = copyFrom.mHintLetterSize;
     56         mShiftedLetterHintSize = copyFrom.mShiftedLetterHintSize;
     57         mHintLabelSize = copyFrom.mHintLabelSize;
     58         mPreviewTextSize = copyFrom.mPreviewTextSize;
     59 
     60         mTextColor = copyFrom.mTextColor;
     61         mTextInactivatedColor = copyFrom.mTextInactivatedColor;
     62         mTextShadowColor = copyFrom.mTextShadowColor;
     63         mHintLetterColor = copyFrom.mHintLetterColor;
     64         mHintLabelColor = copyFrom.mHintLabelColor;
     65         mShiftedLetterHintInactivatedColor = copyFrom.mShiftedLetterHintInactivatedColor;
     66         mShiftedLetterHintActivatedColor = copyFrom.mShiftedLetterHintActivatedColor;
     67         mPreviewTextColor = copyFrom.mPreviewTextColor;
     68 
     69         mAnimAlpha = copyFrom.mAnimAlpha;
     70     }
     71 
     72     public void updateParams(final int keyHeight, final KeyVisualAttributes attr) {
     73         if (attr == null) {
     74             return;
     75         }
     76 
     77         if (attr.mTypeface != null) {
     78             mTypeface = attr.mTypeface;
     79         }
     80 
     81         mLetterSize = selectTextSizeFromDimensionOrRatio(keyHeight,
     82                 attr.mLetterSize, attr.mLetterRatio, mLetterSize);
     83         mLabelSize = selectTextSizeFromDimensionOrRatio(keyHeight,
     84                 attr.mLabelSize, attr.mLabelRatio, mLabelSize);
     85         mLargeLabelSize = selectTextSize(keyHeight, attr.mLargeLabelRatio, mLargeLabelSize);
     86         mLargeLetterSize = selectTextSize(keyHeight, attr.mLargeLetterRatio, mLargeLetterSize);
     87         mHintLetterSize = selectTextSize(keyHeight, attr.mHintLetterRatio, mHintLetterSize);
     88         mShiftedLetterHintSize = selectTextSize(keyHeight,
     89                 attr.mShiftedLetterHintRatio, mShiftedLetterHintSize);
     90         mHintLabelSize = selectTextSize(keyHeight, attr.mHintLabelRatio, mHintLabelSize);
     91         mPreviewTextSize = selectTextSize(keyHeight, attr.mPreviewTextRatio, mPreviewTextSize);
     92 
     93         mTextColor = selectColor(attr.mTextColor, mTextColor);
     94         mTextInactivatedColor = selectColor(attr.mTextInactivatedColor, mTextInactivatedColor);
     95         mTextShadowColor = selectColor(attr.mTextShadowColor, mTextShadowColor);
     96         mHintLetterColor = selectColor(attr.mHintLetterColor, mHintLetterColor);
     97         mHintLabelColor = selectColor(attr.mHintLabelColor, mHintLabelColor);
     98         mShiftedLetterHintInactivatedColor = selectColor(
     99                 attr.mShiftedLetterHintInactivatedColor, mShiftedLetterHintInactivatedColor);
    100         mShiftedLetterHintActivatedColor = selectColor(
    101                 attr.mShiftedLetterHintActivatedColor, mShiftedLetterHintActivatedColor);
    102         mPreviewTextColor = selectColor(attr.mPreviewTextColor, mPreviewTextColor);
    103     }
    104 
    105     public KeyDrawParams mayCloneAndUpdateParams(final int keyHeight,
    106             final KeyVisualAttributes attr) {
    107         if (attr == null) {
    108             return this;
    109         }
    110         final KeyDrawParams newParams = new KeyDrawParams(this);
    111         newParams.updateParams(keyHeight, attr);
    112         return newParams;
    113     }
    114 
    115     private static final int selectTextSizeFromDimensionOrRatio(final int keyHeight,
    116             final int dimens, final float ratio, final int defaultDimens) {
    117         if (ResourceUtils.isValidDimensionPixelSize(dimens)) {
    118             return dimens;
    119         }
    120         if (ResourceUtils.isValidFraction(ratio)) {
    121             return (int)(keyHeight * ratio);
    122         }
    123         return defaultDimens;
    124     }
    125 
    126     private static final int selectTextSize(final int keyHeight, final float ratio,
    127             final int defaultSize) {
    128         if (ResourceUtils.isValidFraction(ratio)) {
    129             return (int)(keyHeight * ratio);
    130         }
    131         return defaultSize;
    132     }
    133 
    134     private static final int selectColor(final int attrColor, final int defaultColor) {
    135         if (attrColor != 0) {
    136             return attrColor;
    137         }
    138         return defaultColor;
    139     }
    140 }
    141