Add path ops API (8018c8db) · Commits · e / os / android_frameworks_base

api/current.txt

+12 −0

Original line number	Diff line number	Diff line
		@@ -9432,6 +9432,8 @@ package android.graphics {
		method public void moveTo(float, float);
		method public void offset(float, float, android.graphics.Path);
		method public void offset(float, float);
		method public boolean op(android.graphics.Path, android.graphics.Path.Op);
		method public boolean op(android.graphics.Path, android.graphics.Path, android.graphics.Path.Op);
		method public void quadTo(float, float, float, float);
		method public void rCubicTo(float, float, float, float, float, float);
		method public void rLineTo(float, float);
		@@ -9463,6 +9465,16 @@ package android.graphics {
		enum_constant public static final android.graphics.Path.FillType WINDING;
		}

		public static final class Path.Op extends java.lang.Enum {
		method public static android.graphics.Path.Op valueOf(java.lang.String);
		method public static final android.graphics.Path.Op[] values();
		enum_constant public static final android.graphics.Path.Op DIFFERENCE;
		enum_constant public static final android.graphics.Path.Op INTERSECT;
		enum_constant public static final android.graphics.Path.Op REVERSE_DIFFERENCE;
		enum_constant public static final android.graphics.Path.Op UNION;
		enum_constant public static final android.graphics.Path.Op XOR;
		}

		public class PathDashPathEffect extends android.graphics.PathEffect {
		ctor public PathDashPathEffect(android.graphics.Path, float, float, android.graphics.PathDashPathEffect.Style);
		}

core/jni/android/graphics/Path.cpp

+10 −6

Original line number	Diff line number	Diff line
		@@ -25,6 +25,7 @@
		#include <android_runtime/AndroidRuntime.h>

		#include "SkPath.h"
		#include "pathops/SkPathOps.h"

		#include <Caches.h>

		@@ -67,8 +68,7 @@ public:
		return obj->getFillType();
		}

		static void setFillType(JNIEnv* env, jobject clazz, SkPath* path,
		SkPath::FillType ft) {
		static void setFillType(JNIEnv* env, jobject clazz, SkPath* path, SkPath::FillType ft) {
		path->setFillType(ft);
		}

		@@ -262,6 +262,9 @@ public:
		obj->transform(*matrix);
		}

		static jboolean op(JNIEnv* env, jobject clazz, SkPath* p1, SkPath* p2, SkPathOp op, SkPath* r) {
		return Op(p1, p2, op, r);
		}
		};

		static JNINativeMethod methods[] = {
		@@ -301,7 +304,8 @@ static JNINativeMethod methods[] = {
		{"native_offset","(IFF)V", (void*) SkPathGlue::offset__FF},
		{"native_setLastPoint","(IFF)V", (void*) SkPathGlue::setLastPoint},
		{"native_transform","(III)V", (void*) SkPathGlue::transform__MatrixPath},
		{"native_transform","(II)V", (void*) SkPathGlue::transform__Matrix}
		{"native_transform","(II)V", (void*) SkPathGlue::transform__Matrix},
		{"native_op","(IIII)Z", (void*) SkPathGlue::op}
		};

		int register_android_graphics_Path(JNIEnv* env) {

graphics/java/android/graphics/Path.java

+94 −13

Original line number	Diff line number	Diff line
		@@ -103,18 +103,103 @@ public class Path {
		}
		}

		/** Enum for the ways a path may be filled
		/**
		* The logical operations that can be performed when combining two paths.
		*
		* @see #op(Path, android.graphics.Path.Op)
		* @see #op(Path, Path, android.graphics.Path.Op)
		*/
		public enum Op {
		/**
		* Subtract the second path from the first path.
		*/
		DIFFERENCE,
		/**
		* Intersect the two paths.
		*/
		INTERSECT,
		/**
		* Union (inclusive-or) the two paths.
		*/
		UNION,
		/**
		* Exclusive-or the two paths.
		*/
		XOR,
		/**
		* Subtract the first path from the second path.
		*/
		REVERSE_DIFFERENCE
		}

		/**
		* Set this path to the result of applying the Op to this path and the specified path.
		* The resulting path will be constructed from non-overlapping contours.
		* The curve order is reduced where possible so that cubics may be turned
		* into quadratics, and quadratics maybe turned into lines.
		*
		* @param path The second operand (for difference, the subtrahend)
		*
		* @return True if operation succeeded, false otherwise and this path remains unmodified.
		*
		* @see Op
		* @see #op(Path, Path, android.graphics.Path.Op)
		*/
		public boolean op(Path path, Op op) {
		return op(this, path, op);
		}

		/**
		* Set this path to the result of applying the Op to the two specified paths.
		* The resulting path will be constructed from non-overlapping contours.
		* The curve order is reduced where possible so that cubics may be turned
		* into quadratics, and quadratics maybe turned into lines.
		*
		* @param path1 The first operand (for difference, the minuend)
		* @param path2 The second operand (for difference, the subtrahend)
		*
		* @return True if operation succeeded, false otherwise and this path remains unmodified.
		*
		* @see Op
		* @see #op(Path, android.graphics.Path.Op)
		*/
		public boolean op(Path path1, Path path2, Op op) {
		if (native_op(path1.mNativePath, path2.mNativePath, op.ordinal(), this.mNativePath)) {
		isSimplePath = false;
		rects = null;
		return true;
		}
		return false;
		}

		/**
		* Enum for the ways a path may be filled.
		*/
		public enum FillType {
		// these must match the values in SkPath.h
		/**
		* Specifies that "inside" is computed by a non-zero sum of signed
		* edge crossings.
		*/
		WINDING (0),
		/**
		* Specifies that "inside" is computed by an odd number of edge
		* crossings.
		*/
		EVEN_ODD (1),
		/**
		* Same as {@link #WINDING}, but draws outside of the path, rather than inside.
		*/
		INVERSE_WINDING (2),
		/**
		* Same as {@link #EVEN_ODD}, but draws outside of the path, rather than inside.
		*/
		INVERSE_EVEN_ODD(3);

		FillType(int ni) {
		nativeInt = ni;
		}

		final int nativeInt;
		}

		@@ -644,24 +729,20 @@ public class Path {
		private static native void native_addRect(int nPath, float left, float top,
		float right, float bottom, int dir);
		private static native void native_addOval(int nPath, RectF oval, int dir);
		private static native void native_addCircle(int nPath, float x, float y,
		float radius, int dir);
		private static native void native_addCircle(int nPath, float x, float y, float radius, int dir);
		private static native void native_addArc(int nPath, RectF oval,
		float startAngle, float sweepAngle);
		private static native void native_addRoundRect(int nPath, RectF rect,
		float rx, float ry, int dir);
		private static native void native_addRoundRect(int nPath, RectF r,
		float[] radii, int dir);
		private static native void native_addPath(int nPath, int src, float dx,
		float dy);
		private static native void native_addRoundRect(int nPath, RectF r, float[] radii, int dir);
		private static native void native_addPath(int nPath, int src, float dx, float dy);
		private static native void native_addPath(int nPath, int src);
		private static native void native_addPath(int nPath, int src, int matrix);
		private static native void native_offset(int nPath, float dx, float dy,
		int dst_path);
		private static native void native_offset(int nPath, float dx, float dy, int dst_path);
		private static native void native_offset(int nPath, float dx, float dy);
		private static native void native_setLastPoint(int nPath, float dx, float dy);
		private static native void native_transform(int nPath, int matrix,
		int dst_path);
		private static native void native_transform(int nPath, int matrix, int dst_path);
		private static native void native_transform(int nPath, int matrix);
		private static native boolean native_op(int path1, int path2, int op, int result);
		private static native void finalizer(int nPath);
		}

tests/HwAccelerationTest/AndroidManifest.xml

+11 −1

Original line number	Diff line number	Diff line
		@@ -40,6 +40,16 @@
		</intent-filter>
		</activity>

		<activity
		android:name="PathOpsActivity"
		android:label="Path/Ops"
		android:theme="@android:style/Theme.Holo.Light">
		<intent-filter>
		<action android:name="android.intent.action.MAIN" />
		<category android:name="com.android.test.hwui.TEST" />
		</intent-filter>
		</activity>

		<activity
		android:name="AssetsAtlasActivity"
		android:label="Atlas/Framework"
		@@ -735,7 +745,7 @@
		android:name="PathsCacheActivity"
		android:label="Path/Cache">
		<intent-filter>
		<action android:name="android.intent.action.MAIN" />
		<action android:name="android.intent.action.MAIN" />`
		<category android:name="com.android.test.hwui.TEST" />
		</intent-filter>
		</activity>

tests/HwAccelerationTest/src/com/android/test/hwui/PathOpsActivity.java

0 → 100644

+87 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2010 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 com.android.test.hwui;

		import android.app.Activity;
		import android.content.Context;
		import android.graphics.Canvas;
		import android.graphics.Color;
		import android.graphics.Paint;
		import android.graphics.Path;
		import android.os.Bundle;
		import android.util.Log;
		import android.view.View;

		@SuppressWarnings({"UnusedDeclaration"})
		public class PathOpsActivity extends Activity {
		@Override
		protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		final PathsView view = new PathsView(this);
		setContentView(view);
		}

		public static class PathsView extends View {
		private final Paint mPaint;
		private Path[] mPaths;
		private float mSize;


		public PathsView(Context c) {
		super(c);

		mPaint = new Paint();
		mPaint.setAntiAlias(true);
		mPaint.setStyle(Paint.Style.FILL);
		mPaint.setColor(Color.RED);
		}

		@Override
		protected void onSizeChanged(int w, int h, int oldw, int oldh) {
		super.onSizeChanged(w, h, oldw, oldh);

		Path.Op[] ops = Path.Op.values();
		mPaths = new Path[ops.length];

		mSize = w / (ops.length * 2.0f);

		Path p1 = new Path();
		p1.addRect(0.0f, 0.0f, mSize, mSize, Path.Direction.CW);

		Path p2 = new Path();
		p2.addCircle(mSize, mSize, mSize / 2.0f, Path.Direction.CW);

		for (int i = 0; i < ops.length; i++) {
		mPaths[i] = new Path();
		if (!mPaths[i].op(p1, p2, ops[i])) {
		Log.d("PathOps", ops[i].name() + " failed!");
		}
		}
		}

		@Override
		protected void onDraw(Canvas canvas) {
		super.onDraw(canvas);

		canvas.translate(mSize * 0.2f, getHeight() / 2.0f);
		for (Path path : mPaths) {
		canvas.drawPath(path, mPaint);
		canvas.translate(mSize * 1.8f, 0.0f);
		}
		}
		}
		}