| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.renderscript; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.Map; |
| import java.util.HashMap; |
| |
| import android.content.res.Resources; |
| import android.content.res.AssetManager; |
| import android.util.Log; |
| import android.util.TypedValue; |
| |
| /** |
| * @hide |
| * |
| **/ |
| public class Font extends BaseObj { |
| |
| //These help us create a font by family name |
| private static final String[] sSansNames = { |
| "sans-serif", "arial", "helvetica", "tahoma", "verdana" |
| }; |
| |
| private static final String[] sSerifNames = { |
| "serif", "times", "times new roman", "palatino", "georgia", "baskerville", |
| "goudy", "fantasy", "cursive", "ITC Stone Serif" |
| }; |
| |
| private static final String[] sMonoNames = { |
| "monospace", "courier", "courier new", "monaco" |
| }; |
| |
| private static class FontFamily { |
| String[] mNames; |
| String mNormalFileName; |
| String mBoldFileName; |
| String mItalicFileName; |
| String mBoldItalicFileName; |
| } |
| |
| private static Map<String, FontFamily> sFontFamilyMap; |
| |
| public enum Style { |
| NORMAL, |
| BOLD, |
| ITALIC, |
| BOLD_ITALIC; |
| } |
| |
| private static void addFamilyToMap(FontFamily family) { |
| for(int i = 0; i < family.mNames.length; i ++) { |
| sFontFamilyMap.put(family.mNames[i], family); |
| } |
| } |
| |
| private static void initFontFamilyMap() { |
| sFontFamilyMap = new HashMap<String, FontFamily>(); |
| |
| FontFamily sansFamily = new FontFamily(); |
| sansFamily.mNames = sSansNames; |
| sansFamily.mNormalFileName = "DroidSans.ttf"; |
| sansFamily.mBoldFileName = "DroidSans-Bold.ttf"; |
| sansFamily.mItalicFileName = "DroidSans.ttf"; |
| sansFamily.mBoldItalicFileName = "DroidSans-Bold.ttf"; |
| addFamilyToMap(sansFamily); |
| |
| FontFamily serifFamily = new FontFamily(); |
| serifFamily.mNames = sSerifNames; |
| serifFamily.mNormalFileName = "DroidSerif-Regular.ttf"; |
| serifFamily.mBoldFileName = "DroidSerif-Bold.ttf"; |
| serifFamily.mItalicFileName = "DroidSerif-Italic.ttf"; |
| serifFamily.mBoldItalicFileName = "DroidSerif-BoldItalic.ttf"; |
| addFamilyToMap(serifFamily); |
| |
| FontFamily monoFamily = new FontFamily(); |
| monoFamily.mNames = sMonoNames; |
| monoFamily.mNormalFileName = "DroidSansMono.ttf"; |
| monoFamily.mBoldFileName = "DroidSansMono.ttf"; |
| monoFamily.mItalicFileName = "DroidSansMono.ttf"; |
| monoFamily.mBoldItalicFileName = "DroidSansMono.ttf"; |
| addFamilyToMap(monoFamily); |
| } |
| |
| static { |
| initFontFamilyMap(); |
| } |
| |
| static String getFontFileName(String familyName, Style style) { |
| FontFamily family = sFontFamilyMap.get(familyName); |
| if(family != null) { |
| switch(style) { |
| case NORMAL: |
| return family.mNormalFileName; |
| case BOLD: |
| return family.mBoldFileName; |
| case ITALIC: |
| return family.mItalicFileName; |
| case BOLD_ITALIC: |
| return family.mBoldItalicFileName; |
| } |
| } |
| // Fallback if we could not find the desired family |
| return "DroidSans.ttf"; |
| } |
| |
| Font(int id, RenderScript rs) { |
| super(id, rs); |
| } |
| |
| /** |
| * Takes a specific file name as an argument |
| */ |
| static public Font create(RenderScript rs, Resources res, String fileName, int size) |
| throws IllegalArgumentException { |
| |
| rs.validate(); |
| try { |
| int dpi = res.getDisplayMetrics().densityDpi; |
| int fontId = rs.nFontCreateFromFile(fileName, size, dpi); |
| |
| if(fontId == 0) { |
| throw new IllegalStateException("Failed loading a font"); |
| } |
| Font rsFont = new Font(fontId, rs); |
| |
| return rsFont; |
| |
| } catch (Exception e) { |
| // Ignore |
| } |
| |
| return null; |
| } |
| |
| /** |
| * Accepts one of the following family names as an argument |
| * and will attemp to produce the best match with a system font |
| * "sans-serif" "arial" "helvetica" "tahoma" "verdana" |
| * "serif" "times" "times new roman" "palatino" "georgia" "baskerville" |
| * "goudy" "fantasy" "cursive" "ITC Stone Serif" |
| * "monospace" "courier" "courier new" "monaco" |
| * Returns default font if no match could be found |
| */ |
| static public Font createFromFamily(RenderScript rs, Resources res, String familyName, Style fontStyle, int size) |
| throws IllegalArgumentException { |
| String fileName = getFontFileName(familyName, fontStyle); |
| return create(rs, res, fileName, size); |
| } |
| } |