| /* |
| * Copyright 2019 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 androidx.camera.view; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import android.app.Activity; |
| import android.content.Context; |
| import android.graphics.Matrix; |
| |
| import androidx.camera.testing.CoreAppTestUtil; |
| import androidx.camera.testing.fakes.FakeActivity; |
| import androidx.test.annotation.UiThreadTest; |
| import androidx.test.core.app.ApplicationProvider; |
| import androidx.test.ext.junit.runners.AndroidJUnit4; |
| import androidx.test.filters.LargeTest; |
| import androidx.test.filters.Suppress; |
| import androidx.test.rule.ActivityTestRule; |
| |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| /** |
| * Instrumented tests for {@link TransformableSurfaceView}. |
| */ |
| @LargeTest |
| @Suppress |
| @RunWith(AndroidJUnit4.class) |
| public class TransformableSurfaceViewTest { |
| |
| private static final int ANY_WIDTH = 160; |
| private static final int ANY_HEIGHT = 90; |
| |
| @Rule |
| public ActivityTestRule<FakeActivity> mActivityTestRule = |
| new ActivityTestRule<>(FakeActivity.class); |
| |
| private Context mContext; |
| |
| @Before |
| public void setUp() { |
| CoreAppTestUtil.assumeCompatibleDevice(); |
| mContext = ApplicationProvider.getApplicationContext(); |
| } |
| |
| @Test |
| @UiThreadTest |
| public void translateTransformation() throws Throwable { |
| final int translateX = 50; |
| final int translateY = 80; |
| final Matrix matrix = new Matrix(); |
| matrix.setTranslate(translateX, translateY); |
| |
| transformSurfaceView(matrix, ANY_WIDTH, ANY_HEIGHT, translateX, translateY); |
| } |
| |
| @Test |
| @UiThreadTest |
| public void scaleFromTopLeftTransformation() throws Throwable { |
| final int scaleX = 2; |
| final int scaleY = 5; |
| final Matrix matrix = new Matrix(); |
| matrix.setScale(scaleX, scaleY, 0, 0); |
| |
| final int expectedWidth = scaleX * ANY_WIDTH; |
| final int expectedHeight = scaleY * ANY_HEIGHT; |
| final int expectedX = 0; |
| final int expectedY = 0; |
| |
| transformSurfaceView(matrix, expectedWidth, expectedHeight, expectedX, expectedY); |
| } |
| |
| @Test |
| @UiThreadTest |
| public void scaleFromCenterTransformation() throws Throwable { |
| final int scaleX = 2; |
| final int scaleY = 5; |
| final float centerX = ANY_WIDTH / 2f; |
| final float centerY = ANY_HEIGHT / 2f; |
| final Matrix matrix = new Matrix(); |
| matrix.setScale(scaleX, scaleY, centerX, centerY); |
| |
| final int expectedWidth = scaleX * ANY_WIDTH; |
| final int expectedHeight = scaleY * ANY_HEIGHT; |
| final int expectedX = (int) (centerX - scaleX * ANY_WIDTH / 2f); |
| final int expectedY = (int) (centerY - scaleY * ANY_HEIGHT / 2f); |
| |
| transformSurfaceView(matrix, expectedWidth, expectedHeight, expectedX, expectedY); |
| } |
| |
| @Test |
| @UiThreadTest |
| public void scaleFromTopLeftAndTranslateTransformation() throws Throwable { |
| final int scaleX = 2; |
| final int scaleY = 5; |
| final int translateX = 50; |
| final int translateY = 80; |
| final Matrix matrix = new Matrix(); |
| matrix.setScale(scaleX, scaleY, 0, 0); |
| matrix.postTranslate(translateX, translateY); |
| |
| final int expectedWidth = scaleX * ANY_WIDTH; |
| final int expectedHeight = scaleY * ANY_HEIGHT; |
| |
| transformSurfaceView(matrix, expectedWidth, expectedHeight, translateX, translateY); |
| } |
| |
| @Test |
| @UiThreadTest |
| public void scaleFromCenterAndTranslateTransformation() throws Throwable { |
| final int scaleX = 2; |
| final int scaleY = 5; |
| final int translateX = 50; |
| final int translateY = 80; |
| final float centerX = ANY_WIDTH / 2f; |
| final float centerY = ANY_HEIGHT / 2f; |
| final Matrix matrix = new Matrix(); |
| matrix.setScale(scaleX, scaleY, centerX, centerY); |
| matrix.postTranslate(translateX, translateY); |
| |
| final int expectedWidth = scaleX * ANY_WIDTH; |
| final int expectedHeight = scaleY * ANY_HEIGHT; |
| final int expectedX = (int) (translateX + centerX - scaleX * ANY_WIDTH / 2f); |
| final int expectedY = (int) (translateY + centerY - scaleY * ANY_HEIGHT / 2f); |
| |
| transformSurfaceView(matrix, expectedWidth, expectedHeight, expectedX, expectedY); |
| } |
| |
| @Test(expected = IllegalArgumentException.class) |
| @UiThreadTest |
| public void ignoreRotationTransformation() throws Throwable { |
| final Matrix matrix = new Matrix(); |
| matrix.setRotate(-45); |
| |
| transformSurfaceView(matrix, ANY_WIDTH, ANY_HEIGHT, 0, 0); |
| } |
| |
| private void transformSurfaceView(final Matrix matrix, final int expectedWidth, |
| final int expectedHeight, final int expectedX, final int expectedY) throws Throwable { |
| final TransformableSurfaceView surfaceView = new TransformableSurfaceView(mContext); |
| surfaceView.layout(0, 0, ANY_WIDTH, ANY_HEIGHT); |
| |
| final Activity activity = mActivityTestRule.getActivity(); |
| mActivityTestRule.runOnUiThread(() -> activity.setContentView(surfaceView)); |
| |
| surfaceView.setTransform(matrix); |
| |
| surfaceView.post(() -> { |
| assertEquals(expectedWidth, surfaceView.getWidth()); |
| assertEquals(expectedHeight, surfaceView.getHeight()); |
| assertEquals(expectedX, Math.round(surfaceView.getX())); |
| assertEquals(expectedY, Math.round(surfaceView.getY())); |
| }); |
| } |
| } |
