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-rw-r--r--graphics/java/android/renderscript/Font.java248
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diff --git a/graphics/java/android/renderscript/Font.java b/graphics/java/android/renderscript/Font.java
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--- a/graphics/java/android/renderscript/Font.java
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-/*
- * Copyright (C) 2008-2012 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.File;
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.HashMap;
-import java.util.Map;
-
-import android.os.Environment;
-
-import android.content.res.AssetManager;
-import android.content.res.Resources;
-import android.util.Log;
-import android.util.TypedValue;
-
-/**
- * @hide
- * @deprecated in API 16
- * <p>This class gives users a simple way to draw hardware accelerated text.
- * Internally, the glyphs are rendered using the Freetype library and an internal cache of
- * rendered glyph bitmaps is maintained. Each font object represents a combination of a typeface,
- * and point size. You can create multiple font objects to represent styles such as bold or italic text,
- * faces, and different font sizes. During creation, the Android system quieries device's screen DPI to
- * ensure proper sizing across multiple device configurations.</p>
- * <p>Fonts are rendered using screen-space positions and no state setup beyond binding a
- * font to the RenderScript is required. A note of caution on performance, though the state changes
- * are transparent to the user, they do happen internally, and it is more efficient to
- * render large batches of text in sequence. It is also more efficient to render multiple
- * characters at once instead of one by one to improve draw call batching.</p>
- * <p>Font color and transparency are not part of the font object and you can freely modify
- * them in the script to suit the user's rendering needs. Font colors work as a state machine.
- * Every new call to draw text uses the last color set in the script.</p>
- **/
-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;
-
- /**
- * @deprecated in API 16
- */
- public enum Style {
- /**
- * @deprecated in API 16
- */
- NORMAL,
- /**
- * @deprecated in API 16
- */
- BOLD,
- /**
- * @deprecated in API 16
- */
- ITALIC,
- /**
- * @deprecated in API 16
- */
- 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 = "Roboto-Regular.ttf";
- sansFamily.mBoldFileName = "Roboto-Bold.ttf";
- sansFamily.mItalicFileName = "Roboto-Italic.ttf";
- sansFamily.mBoldItalicFileName = "Roboto-BoldItalic.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);
- }
-
- /**
- * @deprecated in API 16
- * Takes a specific file name as an argument
- */
- static public Font createFromFile(RenderScript rs, Resources res, String path, float pointSize) {
- rs.validate();
- int dpi = res.getDisplayMetrics().densityDpi;
- int fontId = rs.nFontCreateFromFile(path, pointSize, dpi);
-
- if(fontId == 0) {
- throw new RSRuntimeException("Unable to create font from file " + path);
- }
- Font rsFont = new Font(fontId, rs);
-
- return rsFont;
- }
-
- /**
- * @deprecated in API 16
- */
- static public Font createFromFile(RenderScript rs, Resources res, File path, float pointSize) {
- return createFromFile(rs, res, path.getAbsolutePath(), pointSize);
- }
-
- /**
- * @deprecated in API 16
- */
- static public Font createFromAsset(RenderScript rs, Resources res, String path, float pointSize) {
- rs.validate();
- AssetManager mgr = res.getAssets();
- int dpi = res.getDisplayMetrics().densityDpi;
-
- int fontId = rs.nFontCreateFromAsset(mgr, path, pointSize, dpi);
- if(fontId == 0) {
- throw new RSRuntimeException("Unable to create font from asset " + path);
- }
- Font rsFont = new Font(fontId, rs);
- return rsFont;
- }
-
- /**
- * @deprecated in API 16
- */
- static public Font createFromResource(RenderScript rs, Resources res, int id, float pointSize) {
- String name = "R." + Integer.toString(id);
-
- rs.validate();
- InputStream is = null;
- try {
- is = res.openRawResource(id);
- } catch (Exception e) {
- throw new RSRuntimeException("Unable to open resource " + id);
- }
-
- int dpi = res.getDisplayMetrics().densityDpi;
-
- int fontId = 0;
- if (is instanceof AssetManager.AssetInputStream) {
- int asset = ((AssetManager.AssetInputStream) is).getAssetInt();
- fontId = rs.nFontCreateFromAssetStream(name, pointSize, dpi, asset);
- } else {
- throw new RSRuntimeException("Unsupported asset stream created");
- }
-
- if(fontId == 0) {
- throw new RSRuntimeException("Unable to create font from resource " + id);
- }
- Font rsFont = new Font(fontId, rs);
- return rsFont;
- }
-
- /**
- * @deprecated in API 16
- * Accepts one of the following family names as an argument
- * and will attempt 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 create(RenderScript rs, Resources res, String familyName, Style fontStyle, float pointSize) {
- String fileName = getFontFileName(familyName, fontStyle);
- String fontPath = Environment.getRootDirectory().getAbsolutePath();
- fontPath += "/fonts/" + fileName;
- return createFromFile(rs, res, fontPath, pointSize);
- }
-
-}
generated by cgit v1.1 at 2025-08-17 14:51:49 +0000