| /* |
| * 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.graphics.cts; |
| |
| import com.android.cts.stub.R; |
| |
| |
| import android.content.res.Resources; |
| import android.graphics.Bitmap; |
| import android.graphics.BitmapFactory; |
| import android.graphics.Canvas; |
| import android.graphics.Color; |
| import android.graphics.NinePatch; |
| import android.graphics.Paint; |
| import android.graphics.Rect; |
| import android.graphics.RectF; |
| import android.graphics.Region; |
| import android.test.AndroidTestCase; |
| |
| public class NinePatchTest extends AndroidTestCase { |
| private static int ALPHA_OPAQUE = 0xFF; |
| |
| private NinePatch mNinePatch; |
| private Bitmap mBitmap; |
| private BitmapFactory.Options mOptNoScale; |
| private Resources mRes; |
| private final String NAME = "TESTNAME"; |
| private final int WIDTH = 80; |
| private final int HEIGTH = 120; |
| private final int[] COLOR = new int[WIDTH * HEIGTH]; |
| private byte[] mChunk; |
| |
| @Override |
| protected void setUp() throws Exception { |
| super.setUp(); |
| mRes = getContext().getResources(); |
| mOptNoScale = new BitmapFactory.Options(); |
| mOptNoScale.inDensity = mOptNoScale.inTargetDensity = mRes.getDisplayMetrics().densityDpi; |
| mBitmap = BitmapFactory.decodeResource(mRes, R.drawable.opaque, mOptNoScale); |
| mChunk = mBitmap.getNinePatchChunk(); |
| assertNotNull(mChunk); |
| mNinePatch = new NinePatch(mBitmap, mChunk, NAME); |
| } |
| |
| public void testConstructor() { |
| mNinePatch = null; |
| try { |
| mNinePatch = new NinePatch(mBitmap, new byte[2], NAME); |
| fail("should throw exception"); |
| } catch (Exception e) { |
| } |
| mNinePatch = new NinePatch(mBitmap, mChunk, NAME); |
| } |
| |
| public void testIsNinePatchChunk() { |
| assertTrue(NinePatch.isNinePatchChunk(mChunk)); |
| Bitmap bitmap = Bitmap.createBitmap(COLOR, 10, 10, Bitmap.Config.ARGB_4444); |
| assertFalse(NinePatch.isNinePatchChunk(bitmap.getNinePatchChunk())); |
| assertFalse(NinePatch.isNinePatchChunk(null)); |
| |
| } |
| |
| public void testDraw() { |
| Bitmap expected = BitmapFactory.decodeResource(mRes, R.drawable.scaled1, mOptNoScale); |
| |
| Bitmap bitmap = Bitmap.createBitmap(expected.getWidth(), expected.getHeight(), |
| Bitmap.Config.ARGB_8888); |
| Canvas c = new Canvas(bitmap); |
| RectF rectf = new RectF(0, 0, c.getWidth(), c.getHeight()); |
| mNinePatch.draw(c, rectf); |
| checkBitmapWithAlpha(expected, bitmap, ALPHA_OPAQUE); |
| |
| expected = BitmapFactory.decodeResource(mRes, R.drawable.scaled2, mOptNoScale); |
| bitmap = Bitmap.createBitmap(expected.getWidth(), expected.getHeight(), |
| Bitmap.Config.ARGB_8888); |
| c = new Canvas(bitmap); |
| Rect rect = new Rect(0, 0, c.getWidth(), c.getHeight()); |
| mNinePatch.draw(c, rect); |
| checkBitmapWithAlpha(expected, bitmap, ALPHA_OPAQUE); |
| |
| bitmap = Bitmap.createBitmap(expected.getWidth(), expected.getHeight(), |
| Bitmap.Config.ARGB_8888); |
| c = new Canvas(bitmap); |
| rect = new Rect(0, 0, c.getWidth(), c.getHeight()); |
| final int alpha = 128; |
| Paint p = new Paint(); |
| p.setAlpha(alpha); |
| mNinePatch.draw(c, rect, p); |
| checkBitmapWithAlpha(expected, bitmap, alpha); |
| |
| bitmap = Bitmap.createBitmap(expected.getWidth(), expected.getHeight(), |
| Bitmap.Config.ARGB_8888); |
| c = new Canvas(bitmap); |
| rectf = new RectF(0, 0, c.getWidth(), c.getHeight()); |
| mNinePatch.setPaint(p); |
| mNinePatch.draw(c, rectf); |
| checkBitmapWithAlpha(expected, bitmap, alpha); |
| } |
| |
| private void checkBitmapWithAlpha(Bitmap expected, Bitmap bitmap, int alpha) { |
| assertEquals(expected.getWidth(), bitmap.getWidth()); |
| assertEquals(expected.getHeight(), bitmap.getHeight()); |
| int width = expected.getWidth(); |
| int height = expected.getHeight(); |
| |
| for (int i = 0; i < width; i++) { |
| for (int j = 0; j < height; j++) { |
| int expectedPixel = expected.getPixel(i, j); |
| int actualPixel = bitmap.getPixel(i, j); |
| int expectedAlpha = Color.alpha(expectedPixel); |
| int actualAlpha = Color.alpha(actualPixel); |
| expectedPixel &= 0xFFFFFF; |
| actualPixel &= 0xFFFFFF; |
| assertEquals(expectedPixel, actualPixel); |
| assertEquals(expectedAlpha * alpha / ALPHA_OPAQUE, actualAlpha, 1); |
| } |
| } |
| } |
| |
| public void testHasAlpha() { |
| assertFalse(mNinePatch.hasAlpha()); |
| assertEquals(mNinePatch.hasAlpha(), mBitmap.hasAlpha()); |
| |
| Bitmap bitmap = |
| BitmapFactory.decodeResource(mRes, R.drawable.transparent_border, mOptNoScale); |
| byte[] chunk = bitmap.getNinePatchChunk(); |
| NinePatch ninePatch = new NinePatch(bitmap, chunk, NAME); |
| assertTrue(ninePatch.hasAlpha()); |
| assertEquals(ninePatch.hasAlpha(), bitmap.hasAlpha()); |
| } |
| |
| public void testGetHeight() { |
| assertEquals(5, mNinePatch.getHeight()); |
| assertEquals(mNinePatch.getHeight(), mBitmap.getHeight()); |
| } |
| |
| public void testGetWidth() { |
| assertEquals(5, mNinePatch.getHeight()); |
| assertEquals(mNinePatch.getWidth(), mBitmap.getWidth()); |
| } |
| |
| public void testGetDensity() { |
| mBitmap.setDensity(11); |
| assertEquals(11, mNinePatch.getDensity()); |
| mNinePatch = new NinePatch(mBitmap, mChunk, NAME); |
| assertEquals(mNinePatch.getDensity(), mBitmap.getDensity()); |
| } |
| |
| public void testGetTransparentRegion() { |
| // no transparency in opaque bitmap |
| Rect location = new Rect(0, 0, mBitmap.getWidth(), mBitmap.getHeight()); |
| Region region = mNinePatch.getTransparentRegion(location); |
| assertNull(region); |
| |
| // transparent border of 1px |
| mBitmap = BitmapFactory.decodeResource(mRes, R.drawable.transparent_border, mOptNoScale); |
| mChunk = mBitmap.getNinePatchChunk(); |
| assertNotNull(mChunk); |
| mNinePatch = new NinePatch(mBitmap, mChunk, NAME); |
| |
| location = new Rect(0, 0, mBitmap.getWidth(), mBitmap.getHeight()); |
| region = mNinePatch.getTransparentRegion(location); |
| assertNotNull(region); |
| Rect regionBounds = region.getBounds(); |
| assertBounds(regionBounds, 0, 0, 5, 5); |
| |
| location = new Rect(0, 0, mBitmap.getWidth() * 2, mBitmap.getHeight() * 2); |
| region = mNinePatch.getTransparentRegion(location); |
| assertNotNull(region); |
| regionBounds = region.getBounds(); |
| assertBounds(regionBounds, 0, 0, 10, 10); |
| |
| // transparent padding of 1px on the right side |
| mBitmap = BitmapFactory.decodeResource(mRes, R.drawable.transparent_right, mOptNoScale); |
| mChunk = mBitmap.getNinePatchChunk(); |
| assertNotNull(mChunk); |
| mNinePatch = new NinePatch(mBitmap, mChunk, NAME); |
| |
| location = new Rect(0, 0, mBitmap.getWidth(), mBitmap.getHeight()); |
| region = mNinePatch.getTransparentRegion(location); |
| assertNotNull(region); |
| regionBounds = region.getBounds(); |
| assertBounds(regionBounds, 4, 0, 5, 5); |
| |
| location = new Rect(0, 0, mBitmap.getWidth() * 2, mBitmap.getHeight() * 2); |
| region = mNinePatch.getTransparentRegion(location); |
| regionBounds = region.getBounds(); |
| assertBounds(regionBounds, 9, 0, 10, 10); |
| } |
| |
| private void assertBounds(Rect regionBounds, int left, int top, int right, int bottom) { |
| assertEquals(left, regionBounds.left); |
| assertEquals(top, regionBounds.top); |
| assertEquals(right, regionBounds.right); |
| assertEquals(bottom, regionBounds.bottom); |
| } |
| } |