LayoutLib: Font variants (ad69aee5) · Commits · e / os / android_frameworks_base

tools/layoutlib/bridge/src/android/graphics/FontFamily_Delegate.java

+41 −35

Original line number	Diff line number	Diff line
		@@ -21,6 +21,8 @@ import com.android.layoutlib.bridge.Bridge;
		import com.android.layoutlib.bridge.impl.DelegateManager;
		import com.android.tools.layoutlib.annotations.LayoutlibDelegate;

		import android.content.res.AssetManager;

		import java.awt.Font;
		import java.io.File;
		import java.util.ArrayList;
		@@ -47,7 +49,6 @@ public class FontFamily_Delegate {
		private static final String FONT_SUFFIX_BOLDITALIC = "BoldItalic.ttf";
		private static final String FONT_SUFFIX_BOLD = "Bold.ttf";
		private static final String FONT_SUFFIX_ITALIC = "Italic.ttf";
		private static final String FONT_SUBSTRING_COMPACT = "UI";

		/**
		* A class associating {@link Font} with its metadata.
		@@ -56,11 +57,6 @@ public class FontFamily_Delegate {
		Font mFont;
		/** Regular, Bold, Italic, or BoldItalic. */
		int mStyle;
		/**
		* The variant of the Font - compact or elegant.
		* @see Paint#setElegantTextHeight(boolean)
		*/
		boolean mIsCompact;
		}

		// ---- delegate manager ----
		@@ -75,6 +71,14 @@ public class FontFamily_Delegate {

		// ---- delegate data ----
		private List<FontInfo> mFonts = new ArrayList<FontInfo>();
		/**
		* The variant of the Font Family - compact or elegant.
		* 0 is unspecified, 1 is compact and 2 is elegant. This needs to be kept in sync with values in
		* android.graphics.FontFamily
		*
		* @see Paint#setElegantTextHeight(boolean)
		*/
		private FontVariant mVariant;
		// Path of fonts that haven't been created since sFontLoader hasn't been initialized.
		private List<String> mPath = new ArrayList<String>();

		@@ -93,37 +97,22 @@ public class FontFamily_Delegate {
		sPostInitDelegate.clear();
		}

		public Font getFont(int style, boolean isCompact) {
		public Font getFont(int style) {
		FontInfo plainFont = null;
		FontInfo styledFont = null; // Font matching the style but not isCompact
		for (FontInfo font : mFonts) {
		if (font.mStyle == style) {
		if (font.mIsCompact == isCompact) {
		return font.mFont;
		}
		styledFont = font;
		}
		if (font.mStyle == Font.PLAIN) {
		if (plainFont == null) {
		plainFont = font;
		continue;
		}
		if (font.mIsCompact == isCompact) {
		// Override the previous selection of plain font since we've found a better one.
		if (font.mStyle == Font.PLAIN && plainFont == null) {
		plainFont = font;
		}
		}
		}
		if (styledFont != null) {
		return styledFont.mFont;
		}

		// No font with the mentioned style is found. Try to derive one.
		if (plainFont != null && style > 0 && style < 4) {
		styledFont = new FontInfo();
		FontInfo styledFont = new FontInfo();
		styledFont.mFont = plainFont.mFont.deriveFont(style);
		styledFont.mStyle = style;
		styledFont.mIsCompact = plainFont.mIsCompact;
		// Add the font to the list of fonts so that we don't have to derive it the next time.
		mFonts.add(styledFont);
		return styledFont.mFont;
		@@ -131,11 +120,20 @@ public class FontFamily_Delegate {
		return null;
		}

		public FontVariant getVariant() {
		return mVariant;
		}


		// ---- native methods ----

		@LayoutlibDelegate
		/package/ static long nCreateFamily() {
		/package/ static long nCreateFamily(String lang, int variant) {
		// TODO: support lang. This is required for japanese locale.
		FontFamily_Delegate delegate = new FontFamily_Delegate();
		// variant can be 0, 1 or 2.
		assert variant < 3;
		delegate.mVariant = FontVariant.values()[variant];
		if (sFontLocation != null) {
		delegate.init();
		} else {
		@@ -164,6 +162,13 @@ public class FontFamily_Delegate {
		return false;
		}

		@LayoutlibDelegate
		/package/ static boolean nAddFontFromAsset(long nativeFamily, AssetManager mgr, String path) {
		Bridge.getLog().fidelityWarning(LayoutLog.TAG_UNSUPPORTED,
		"FontFamily.addFontFromAsset is not supported.", null /throwable/, null /data/);
		return false;
		}

		private void init() {
		for (String path : mPath) {
		addFont(path);
		@@ -195,13 +200,6 @@ public class FontFamily_Delegate {
		style = Font.ITALIC;
		}
		fontInfo.mStyle = style;

		// Names of compact fonts end with UI-<style>.ttf. For example, NotoNakshUI-Regular.ttf.
		// This should go away when this info is passed on by nAddFont().
		int hyphenIndex = fontName.lastIndexOf('-');
		fontInfo.mIsCompact = hyphenIndex > 0 &&
		fontName.substring(0, hyphenIndex).endsWith(FONT_SUBSTRING_COMPACT);

		}

		private static Font loadFont(String path) {
		@@ -214,7 +212,7 @@ public class FontFamily_Delegate {
		} catch (Exception e) {
		Bridge.getLog().fidelityWarning(LayoutLog.TAG_BROKEN,
		String.format("Unable to load font %1$s", relativePath),
		null /throwable/, null /data/);
		e /throwable/, null /data/);
		}
		} else {
		Bridge.getLog().fidelityWarning(LayoutLog.TAG_UNSUPPORTED,
		@@ -224,4 +222,12 @@ public class FontFamily_Delegate {

		return null;
		}


		// ---- Public helper class ----

		public enum FontVariant {
		// The order needs to be kept in sync with android.graphics.FontFamily.
		NONE, COMPACT, ELEGANT
		}
		}

tools/layoutlib/bridge/src/android/graphics/Paint_Delegate.java

+16 −15

Original line number	Diff line number	Diff line
		@@ -21,6 +21,7 @@ import com.android.layoutlib.bridge.Bridge;
		import com.android.layoutlib.bridge.impl.DelegateManager;
		import com.android.tools.layoutlib.annotations.LayoutlibDelegate;

		import android.graphics.FontFamily_Delegate.FontVariant;
		import android.graphics.Paint.FontMetrics;
		import android.graphics.Paint.FontMetricsInt;
		import android.text.TextUtils;
		@@ -30,7 +31,6 @@ import java.awt.Font;
		import java.awt.Shape;
		import java.awt.Stroke;
		import java.awt.Toolkit;
		import java.awt.font.FontRenderContext;
		import java.awt.geom.AffineTransform;
		import java.util.ArrayList;
		import java.util.Collections;
		@@ -81,7 +81,8 @@ public class Paint_Delegate {
		private float mTextScaleX;
		private float mTextSkewX;
		private int mHintingMode = Paint.HINTING_ON;
		private boolean mIsCompact = true;
		// Variant of the font.
		private FontVariant mFontVariant = FontVariant.NONE;

		private Xfermode_Delegate mXfermode;
		private ColorFilter_Delegate mColorFilter;
		@@ -437,7 +438,7 @@ public class Paint_Delegate {
		/package/ static boolean isElegantTextHeight(Paint thisPaint) {
		// get the delegate from the native int.
		Paint_Delegate delegate = sManager.getDelegate(thisPaint.mNativePaint);
		return delegate != null && !delegate.mIsCompact;
		return delegate != null && delegate.mFontVariant == FontVariant.ELEGANT;
		}

		@LayoutlibDelegate
		@@ -448,7 +449,7 @@ public class Paint_Delegate {
		return;
		}

		delegate.mIsCompact = !elegant;
		delegate.mFontVariant = elegant ? FontVariant.ELEGANT : FontVariant.COMPACT;
		}

		@LayoutlibDelegate
		@@ -1022,31 +1023,31 @@ public class Paint_Delegate {
		}

		@LayoutlibDelegate
		/package/ static void native_getTextPath(long native_object, int bidiFlags,
		char[] text, int index, int count, float x, float y, long path) {
		/package/ static void native_getTextPath(long native_object, long native_typeface,
		int bidiFlags, char[] text, int index, int count, float x, float y, long path) {
		// FIXME
		Bridge.getLog().fidelityWarning(LayoutLog.TAG_UNSUPPORTED,
		"Paint.getTextPath is not supported.", null, null /data/);
		}

		@LayoutlibDelegate
		/package/ static void native_getTextPath(long native_object, int bidiFlags,
		String text, int start, int end, float x, float y, long path) {
		/package/ static void native_getTextPath(long native_object, long native_typeface,
		int bidiFlags, String text, int start, int end, float x, float y, long path) {
		// FIXME
		Bridge.getLog().fidelityWarning(LayoutLog.TAG_UNSUPPORTED,
		"Paint.getTextPath is not supported.", null, null /data/);
		}

		@LayoutlibDelegate
		/package/ static void nativeGetStringBounds(long nativePaint, String text, int start,
		int end, int bidiFlags, Rect bounds) {
		nativeGetCharArrayBounds(nativePaint, text.toCharArray(), start, end - start, bidiFlags,
		bounds);
		/package/ static void nativeGetStringBounds(long nativePaint, long native_typeface,
		String text, int start, int end, int bidiFlags, Rect bounds) {
		nativeGetCharArrayBounds(nativePaint, native_typeface, text.toCharArray(), start,
		end - start, bidiFlags, bounds);
		}

		@LayoutlibDelegate
		/package/ static void nativeGetCharArrayBounds(long nativePaint, char[] text, int index,
		int count, int bidiFlags, Rect bounds) {
		/package/ static void nativeGetCharArrayBounds(long nativePaint, long native_typeface,
		char[] text, int index, int count, int bidiFlags, Rect bounds) {

		// get the delegate from the native int.
		Paint_Delegate delegate = sManager.getDelegate(nativePaint);
		@@ -1124,7 +1125,7 @@ public class Paint_Delegate {
		private void updateFontObject() {
		if (mTypeface != null) {
		// Get the fonts from the TypeFace object.
		List<Font> fonts = mTypeface.getFonts(mIsCompact);
		List<Font> fonts = mTypeface.getFonts(mFontVariant);

		// create new font objects as well as FontMetrics, based on the current text size
		// and skew info.

tools/layoutlib/bridge/src/android/graphics/Typeface_Delegate.java

+16 −4

Original line number	Diff line number	Diff line
		@@ -22,6 +22,7 @@ import com.android.layoutlib.bridge.impl.DelegateManager;
		import com.android.tools.layoutlib.annotations.LayoutlibDelegate;

		import android.content.res.AssetManager;
		import android.graphics.FontFamily_Delegate.FontVariant;

		import java.awt.Font;
		import java.io.File;
		@@ -69,18 +70,29 @@ public final class Typeface_Delegate {
		return sManager.getDelegate(nativeTypeface);
		}

		public List<Font> getFonts(boolean compact) {
		public List<Font> getFonts(FontVariant variant) {
		List<Font> fonts = new ArrayList<Font>(mFontFamilies.length);
		// If we are unable to find fonts matching the variant, we return the fonts from the
		// other variant since we always want to draw something, rather than nothing.
		// TODO: check this behaviour with platform.
		List<Font> otherVariantFonts = new ArrayList<Font>();
		for (FontFamily_Delegate ffd : mFontFamilies) {
		if (ffd != null) {
		Font font = ffd.getFont(mStyle, compact);
		Font font = ffd.getFont(mStyle);
		if (font != null) {
		if (ffd.getVariant() == variant \|\| ffd.getVariant() == FontVariant.NONE) {
		fonts.add(font);
		} else {
		otherVariantFonts.add(font);
		}
		}
		}
		}
		if (fonts.size() > 0) {
		return fonts;
		}
		return otherVariantFonts;
		}

		// ---- native methods ----