1 files changed, 108 insertions, 1 deletions

diff --git a/graphics/java/android/renderscript/Font.java b/graphics/java/android/renderscript/Font.java
index d79909e..de25014 100644
--- a/graphics/java/android/renderscript/Font.java
+++ b/graphics/java/android/renderscript/Font.java
@@ -18,6 +18,8 @@ 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;
@@ -30,10 +32,100 @@ import android.util.TypedValue;
  **/
 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 {
 
@@ -43,7 +135,7 @@ public class Font extends BaseObj {
             int fontId = rs.nFontCreateFromFile(fileName, size, dpi);
 
             if(fontId == 0) {
-                throw new IllegalStateException("Load loading a font");
+                throw new IllegalStateException("Failed loading a font");
             }
             Font rsFont = new Font(fontId, rs);
 
@@ -55,4 +147,19 @@ public class Font extends BaseObj {
 
         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);
+    }
 }