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
17package com.android.inputmethod.keyboard.internal;
18
19import android.content.res.ColorStateList;
20import android.graphics.Typeface;
21
22import com.android.inputmethod.latin.utils.ResourceUtils;
23
24public final class KeyDrawParams {
25    public Typeface mTypeface;
26
27    public int mLetterSize;
28    public int mLabelSize;
29    public int mLargeLetterSize;
30    public int mLargeLabelSize;
31    public int mHintLetterSize;
32    public int mShiftedLetterHintSize;
33    public int mHintLabelSize;
34    public int mPreviewTextSize;
35
36    public ColorStateList mTextColorStateList;
37    public int mTextInactivatedColor;
38    public int mTextShadowColor;
39    public int mHintLetterColor;
40    public int mHintLabelColor;
41    public int mShiftedLetterHintInactivatedColor;
42    public int mShiftedLetterHintActivatedColor;
43    public int mPreviewTextColor;
44
45    public int mAnimAlpha;
46
47    public KeyDrawParams() {}
48
49    private KeyDrawParams(final KeyDrawParams copyFrom) {
50        mTypeface = copyFrom.mTypeface;
51
52        mLetterSize = copyFrom.mLetterSize;
53        mLabelSize = copyFrom.mLabelSize;
54        mLargeLetterSize = copyFrom.mLargeLetterSize;
55        mLargeLabelSize = copyFrom.mLargeLabelSize;
56        mHintLetterSize = copyFrom.mHintLetterSize;
57        mShiftedLetterHintSize = copyFrom.mShiftedLetterHintSize;
58        mHintLabelSize = copyFrom.mHintLabelSize;
59        mPreviewTextSize = copyFrom.mPreviewTextSize;
60
61        mTextColorStateList = copyFrom.mTextColorStateList;
62        mTextInactivatedColor = copyFrom.mTextInactivatedColor;
63        mTextShadowColor = copyFrom.mTextShadowColor;
64        mHintLetterColor = copyFrom.mHintLetterColor;
65        mHintLabelColor = copyFrom.mHintLabelColor;
66        mShiftedLetterHintInactivatedColor = copyFrom.mShiftedLetterHintInactivatedColor;
67        mShiftedLetterHintActivatedColor = copyFrom.mShiftedLetterHintActivatedColor;
68        mPreviewTextColor = copyFrom.mPreviewTextColor;
69
70        mAnimAlpha = copyFrom.mAnimAlpha;
71    }
72
73    public void updateParams(final int keyHeight, final KeyVisualAttributes attr) {
74        if (attr == null) {
75            return;
76        }
77
78        if (attr.mTypeface != null) {
79            mTypeface = attr.mTypeface;
80        }
81
82        mLetterSize = selectTextSizeFromDimensionOrRatio(keyHeight,
83                attr.mLetterSize, attr.mLetterRatio, mLetterSize);
84        mLabelSize = selectTextSizeFromDimensionOrRatio(keyHeight,
85                attr.mLabelSize, attr.mLabelRatio, mLabelSize);
86        mLargeLabelSize = selectTextSize(keyHeight, attr.mLargeLabelRatio, mLargeLabelSize);
87        mLargeLetterSize = selectTextSize(keyHeight, attr.mLargeLetterRatio, mLargeLetterSize);
88        mHintLetterSize = selectTextSize(keyHeight, attr.mHintLetterRatio, mHintLetterSize);
89        mShiftedLetterHintSize = selectTextSize(keyHeight,
90                attr.mShiftedLetterHintRatio, mShiftedLetterHintSize);
91        mHintLabelSize = selectTextSize(keyHeight, attr.mHintLabelRatio, mHintLabelSize);
92        mPreviewTextSize = selectTextSize(keyHeight, attr.mPreviewTextRatio, mPreviewTextSize);
93        mTextColorStateList =
94                attr.mTextColorStateList != null ? attr.mTextColorStateList : mTextColorStateList;
95        mTextInactivatedColor = selectColor(attr.mTextInactivatedColor, mTextInactivatedColor);
96        mTextShadowColor = selectColor(attr.mTextShadowColor, mTextShadowColor);
97        mHintLetterColor = selectColor(attr.mHintLetterColor, mHintLetterColor);
98        mHintLabelColor = selectColor(attr.mHintLabelColor, mHintLabelColor);
99        mShiftedLetterHintInactivatedColor = selectColor(
100                attr.mShiftedLetterHintInactivatedColor, mShiftedLetterHintInactivatedColor);
101        mShiftedLetterHintActivatedColor = selectColor(
102                attr.mShiftedLetterHintActivatedColor, mShiftedLetterHintActivatedColor);
103        mPreviewTextColor = selectColor(attr.mPreviewTextColor, mPreviewTextColor);
104    }
105
106    public KeyDrawParams mayCloneAndUpdateParams(final int keyHeight,
107            final KeyVisualAttributes attr) {
108        if (attr == null) {
109            return this;
110        }
111        final KeyDrawParams newParams = new KeyDrawParams(this);
112        newParams.updateParams(keyHeight, attr);
113        return newParams;
114    }
115
116    private static final int selectTextSizeFromDimensionOrRatio(final int keyHeight,
117            final int dimens, final float ratio, final int defaultDimens) {
118        if (ResourceUtils.isValidDimensionPixelSize(dimens)) {
119            return dimens;
120        }
121        if (ResourceUtils.isValidFraction(ratio)) {
122            return (int)(keyHeight * ratio);
123        }
124        return defaultDimens;
125    }
126
127    private static final int selectTextSize(final int keyHeight, final float ratio,
128            final int defaultSize) {
129        if (ResourceUtils.isValidFraction(ratio)) {
130            return (int)(keyHeight * ratio);
131        }
132        return defaultSize;
133    }
134
135    private static final int selectColor(final int attrColor, final int defaultColor) {
136        if (attrColor != 0) {
137            return attrColor;
138        }
139        return defaultColor;
140    }
141}
142