The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2008 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 android.text.style; |
| 18 | |
| 19 | import android.content.Context; |
| 20 | import android.content.res.ColorStateList; |
| 21 | import android.content.res.TypedArray; |
| 22 | import android.graphics.Typeface; |
| 23 | import android.os.Parcel; |
| 24 | import android.text.ParcelableSpan; |
| 25 | import android.text.TextPaint; |
| 26 | import android.text.TextUtils; |
| 27 | |
| 28 | /** |
| 29 | * Sets the text color, size, style, and typeface to match a TextAppearance |
| 30 | * resource. |
| 31 | */ |
| 32 | public class TextAppearanceSpan extends MetricAffectingSpan implements ParcelableSpan { |
| 33 | private final String mTypeface; |
| 34 | private final int mStyle; |
| 35 | private final int mTextSize; |
| 36 | private final ColorStateList mTextColor; |
| 37 | private final ColorStateList mTextColorLink; |
| 38 | |
| 39 | /** |
| 40 | * Uses the specified TextAppearance resource to determine the |
| 41 | * text appearance. The <code>appearance</code> should be, for example, |
| 42 | * <code>android.R.style.TextAppearance_Small</code>. |
| 43 | */ |
| 44 | public TextAppearanceSpan(Context context, int appearance) { |
| 45 | this(context, appearance, -1); |
| 46 | } |
| 47 | |
| 48 | /** |
| 49 | * Uses the specified TextAppearance resource to determine the |
| 50 | * text appearance, and the specified text color resource |
| 51 | * to determine the color. The <code>appearance</code> should be, |
| 52 | * for example, <code>android.R.style.TextAppearance_Small</code>, |
| 53 | * and the <code>colorList</code> should be, for example, |
Gilles Debunne | 0f9ae27 | 2011-04-27 14:25:54 -0700 | [diff] [blame] | 54 | * <code>android.R.styleable.Theme_textColorPrimary</code>. |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 55 | */ |
Gilles Debunne | 0f9ae27 | 2011-04-27 14:25:54 -0700 | [diff] [blame] | 56 | public TextAppearanceSpan(Context context, int appearance, int colorList) { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 57 | ColorStateList textColor; |
| 58 | |
| 59 | TypedArray a = |
| 60 | context.obtainStyledAttributes(appearance, |
| 61 | com.android.internal.R.styleable.TextAppearance); |
| 62 | |
| 63 | textColor = a.getColorStateList(com.android.internal.R.styleable. |
| 64 | TextAppearance_textColor); |
| 65 | mTextColorLink = a.getColorStateList(com.android.internal.R.styleable. |
| 66 | TextAppearance_textColorLink); |
| 67 | mTextSize = a.getDimensionPixelSize(com.android.internal.R.styleable. |
| 68 | TextAppearance_textSize, -1); |
| 69 | |
| 70 | mStyle = a.getInt(com.android.internal.R.styleable.TextAppearance_textStyle, 0); |
Raph Levien | d570e89 | 2012-05-09 11:45:34 -0700 | [diff] [blame] | 71 | String family = a.getString(com.android.internal.R.styleable.TextAppearance_fontFamily); |
| 72 | if (family != null) { |
| 73 | mTypeface = family; |
| 74 | } else { |
| 75 | int tf = a.getInt(com.android.internal.R.styleable.TextAppearance_typeface, 0); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 76 | |
Raph Levien | d570e89 | 2012-05-09 11:45:34 -0700 | [diff] [blame] | 77 | switch (tf) { |
| 78 | case 1: |
| 79 | mTypeface = "sans"; |
| 80 | break; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 81 | |
Raph Levien | d570e89 | 2012-05-09 11:45:34 -0700 | [diff] [blame] | 82 | case 2: |
| 83 | mTypeface = "serif"; |
| 84 | break; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 85 | |
Raph Levien | d570e89 | 2012-05-09 11:45:34 -0700 | [diff] [blame] | 86 | case 3: |
| 87 | mTypeface = "monospace"; |
| 88 | break; |
| 89 | |
| 90 | default: |
| 91 | mTypeface = null; |
| 92 | break; |
| 93 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 94 | } |
| 95 | |
| 96 | a.recycle(); |
| 97 | |
| 98 | if (colorList >= 0) { |
| 99 | a = context.obtainStyledAttributes(com.android.internal.R.style.Theme, |
| 100 | com.android.internal.R.styleable.Theme); |
| 101 | |
| 102 | textColor = a.getColorStateList(colorList); |
| 103 | a.recycle(); |
| 104 | } |
| 105 | |
| 106 | mTextColor = textColor; |
| 107 | } |
| 108 | |
| 109 | /** |
| 110 | * Makes text be drawn with the specified typeface, size, style, |
| 111 | * and colors. |
| 112 | */ |
| 113 | public TextAppearanceSpan(String family, int style, int size, |
| 114 | ColorStateList color, ColorStateList linkColor) { |
| 115 | mTypeface = family; |
| 116 | mStyle = style; |
| 117 | mTextSize = size; |
| 118 | mTextColor = color; |
| 119 | mTextColorLink = linkColor; |
| 120 | } |
| 121 | |
| 122 | public TextAppearanceSpan(Parcel src) { |
| 123 | mTypeface = src.readString(); |
| 124 | mStyle = src.readInt(); |
| 125 | mTextSize = src.readInt(); |
| 126 | if (src.readInt() != 0) { |
| 127 | mTextColor = ColorStateList.CREATOR.createFromParcel(src); |
| 128 | } else { |
| 129 | mTextColor = null; |
| 130 | } |
| 131 | if (src.readInt() != 0) { |
| 132 | mTextColorLink = ColorStateList.CREATOR.createFromParcel(src); |
| 133 | } else { |
| 134 | mTextColorLink = null; |
| 135 | } |
| 136 | } |
| 137 | |
| 138 | public int getSpanTypeId() { |
Alan Viverette | a70d4a9 | 2015-06-02 16:11:00 -0700 | [diff] [blame] | 139 | return getSpanTypeIdInternal(); |
| 140 | } |
| 141 | |
| 142 | /** @hide */ |
| 143 | public int getSpanTypeIdInternal() { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 144 | return TextUtils.TEXT_APPEARANCE_SPAN; |
| 145 | } |
| 146 | |
| 147 | public int describeContents() { |
| 148 | return 0; |
| 149 | } |
| 150 | |
| 151 | public void writeToParcel(Parcel dest, int flags) { |
Alan Viverette | a70d4a9 | 2015-06-02 16:11:00 -0700 | [diff] [blame] | 152 | writeToParcelInternal(dest, flags); |
| 153 | } |
| 154 | |
| 155 | /** @hide */ |
| 156 | public void writeToParcelInternal(Parcel dest, int flags) { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 157 | dest.writeString(mTypeface); |
| 158 | dest.writeInt(mStyle); |
| 159 | dest.writeInt(mTextSize); |
| 160 | if (mTextColor != null) { |
| 161 | dest.writeInt(1); |
| 162 | mTextColor.writeToParcel(dest, flags); |
| 163 | } else { |
| 164 | dest.writeInt(0); |
| 165 | } |
| 166 | if (mTextColorLink != null) { |
| 167 | dest.writeInt(1); |
| 168 | mTextColorLink.writeToParcel(dest, flags); |
| 169 | } else { |
| 170 | dest.writeInt(0); |
| 171 | } |
| 172 | } |
| 173 | |
| 174 | /** |
| 175 | * Returns the typeface family specified by this span, or <code>null</code> |
| 176 | * if it does not specify one. |
| 177 | */ |
| 178 | public String getFamily() { |
| 179 | return mTypeface; |
| 180 | } |
| 181 | |
| 182 | /** |
| 183 | * Returns the text color specified by this span, or <code>null</code> |
| 184 | * if it does not specify one. |
| 185 | */ |
| 186 | public ColorStateList getTextColor() { |
| 187 | return mTextColor; |
| 188 | } |
| 189 | |
| 190 | /** |
| 191 | * Returns the link color specified by this span, or <code>null</code> |
| 192 | * if it does not specify one. |
| 193 | */ |
| 194 | public ColorStateList getLinkTextColor() { |
| 195 | return mTextColorLink; |
| 196 | } |
| 197 | |
| 198 | /** |
| 199 | * Returns the text size specified by this span, or <code>-1</code> |
| 200 | * if it does not specify one. |
| 201 | */ |
| 202 | public int getTextSize() { |
| 203 | return mTextSize; |
| 204 | } |
| 205 | |
| 206 | /** |
| 207 | * Returns the text style specified by this span, or <code>0</code> |
| 208 | * if it does not specify one. |
| 209 | */ |
| 210 | public int getTextStyle() { |
| 211 | return mStyle; |
| 212 | } |
| 213 | |
| 214 | @Override |
| 215 | public void updateDrawState(TextPaint ds) { |
| 216 | updateMeasureState(ds); |
| 217 | |
| 218 | if (mTextColor != null) { |
| 219 | ds.setColor(mTextColor.getColorForState(ds.drawableState, 0)); |
| 220 | } |
| 221 | |
| 222 | if (mTextColorLink != null) { |
Fabrice Di Meglio | b8503eb | 2011-08-09 18:18:27 -0700 | [diff] [blame] | 223 | ds.linkColor = mTextColorLink.getColorForState(ds.drawableState, 0); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 224 | } |
| 225 | } |
| 226 | |
| 227 | @Override |
| 228 | public void updateMeasureState(TextPaint ds) { |
| 229 | if (mTypeface != null || mStyle != 0) { |
| 230 | Typeface tf = ds.getTypeface(); |
| 231 | int style = 0; |
| 232 | |
| 233 | if (tf != null) { |
| 234 | style = tf.getStyle(); |
| 235 | } |
| 236 | |
| 237 | style |= mStyle; |
| 238 | |
| 239 | if (mTypeface != null) { |
| 240 | tf = Typeface.create(mTypeface, style); |
| 241 | } else if (tf == null) { |
| 242 | tf = Typeface.defaultFromStyle(style); |
| 243 | } else { |
| 244 | tf = Typeface.create(tf, style); |
| 245 | } |
| 246 | |
| 247 | int fake = style & ~tf.getStyle(); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 248 | |
| 249 | if ((fake & Typeface.BOLD) != 0) { |
| 250 | ds.setFakeBoldText(true); |
| 251 | } |
| 252 | |
| 253 | if ((fake & Typeface.ITALIC) != 0) { |
| 254 | ds.setTextSkewX(-0.25f); |
| 255 | } |
| 256 | |
| 257 | ds.setTypeface(tf); |
| 258 | } |
| 259 | |
| 260 | if (mTextSize > 0) { |
| 261 | ds.setTextSize(mTextSize); |
| 262 | } |
| 263 | } |
| 264 | } |