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Diffstat (limited to 'eclipse/plugins/com.android.ide.eclipse.tests/unittests/com/android/ide/eclipse/adt/internal/editors/layout/gle2/SwtUtilsTest.java')
-rw-r--r-- | eclipse/plugins/com.android.ide.eclipse.tests/unittests/com/android/ide/eclipse/adt/internal/editors/layout/gle2/SwtUtilsTest.java | 343 |
1 files changed, 343 insertions, 0 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.tests/unittests/com/android/ide/eclipse/adt/internal/editors/layout/gle2/SwtUtilsTest.java b/eclipse/plugins/com.android.ide.eclipse.tests/unittests/com/android/ide/eclipse/adt/internal/editors/layout/gle2/SwtUtilsTest.java new file mode 100644 index 000000000..de7999c24 --- /dev/null +++ b/eclipse/plugins/com.android.ide.eclipse.tests/unittests/com/android/ide/eclipse/adt/internal/editors/layout/gle2/SwtUtilsTest.java @@ -0,0 +1,343 @@ +/* + * Copyright (C) 2010 The Android Open Source Project + * + * Licensed under the Eclipse Public License, Version 1.0 (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.eclipse.org/org/documents/epl-v10.php + * + * 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.ide.eclipse.adt.internal.editors.layout.gle2; + +import com.android.ide.common.api.Rect; + +import org.eclipse.swt.SWT; +import org.eclipse.swt.graphics.Image; +import org.eclipse.swt.graphics.ImageData; +import org.eclipse.swt.graphics.PaletteData; +import org.eclipse.swt.graphics.RGB; +import org.eclipse.swt.graphics.Rectangle; +import org.eclipse.swt.widgets.Display; +import org.eclipse.swt.widgets.Shell; + +import java.awt.Color; +import java.awt.Graphics; +import java.awt.image.BufferedImage; +import java.util.ArrayList; +import java.util.Collections; +import java.util.List; + +import junit.framework.TestCase; + +public class SwtUtilsTest extends TestCase { + + public void testImageConvertNoAlpha() throws Exception { + // Note: We need an TYPE_INT_ARGB SWT image here (instead of TYPE_INT_ARGB_PRE) to + // prevent the alpha from being pre-multiplied into the RGB when drawing the image. + BufferedImage inImage = new BufferedImage(100, 100, BufferedImage.TYPE_INT_ARGB); + Graphics g = inImage.getGraphics(); + g.setColor(new Color(0xAA112233, true)); + g.fillRect(0, 0, inImage.getWidth(), inImage.getHeight()); + g.dispose(); + + Shell shell = new Shell(); + Display display = shell.getDisplay(); + + // Convert the RGB image, effectively discarding the alpha channel entirely. + Image outImage = SwtUtils.convertToSwt(display, inImage, false, -1); + assertNotNull(outImage); + + ImageData outData = outImage.getImageData(); + assertEquals(inImage.getWidth(), outData.width); + assertEquals(inImage.getHeight(), outData.height); + assertNull(outData.alphaData); + assertEquals(SWT.TRANSPARENCY_NONE, outData.getTransparencyType()); + + PaletteData inPalette = SwtUtils.getAwtPaletteData(inImage.getType()); + PaletteData outPalette = outData.palette; + + for (int y = 0; y < outData.height; y++) { + for (int x = 0; x < outData.width; x++) { + // Note: we can't compare pixel directly as integers since convertToSwt() might + // have changed the RGBA ordering depending on the platform (e.g. it will on + // Windows.) + RGB expected = inPalette.getRGB( inImage.getRGB( x, y)); + RGB actual = outPalette.getRGB(outData.getPixel(x, y)); + assertEquals(expected, actual); + } + } + + // Convert back to AWT and compare with original AWT image + BufferedImage awtImage = SwtUtils.convertToAwt(outImage); + assertNotNull(awtImage); + + // Both image have the same RGBA ordering + assertEquals(BufferedImage.TYPE_INT_ARGB, inImage.getType()); + assertEquals(BufferedImage.TYPE_INT_ARGB, awtImage.getType()); + + int awtAlphaMask = 0xFF000000; + + for (int y = 0; y < outData.height; y++) { + for (int x = 0; x < outData.width; x++) { + // Note: we can compare pixels as integers since we just + // asserted both images have the same color image type except + // for the content of the alpha channel. + int actual = awtImage.getRGB(x, y); + assertEquals(awtAlphaMask, actual & awtAlphaMask); + assertEquals(awtAlphaMask | inImage.getRGB(x, y), awtImage.getRGB(x, y)); + } + } + } + + public void testImageConvertGlobalAlpha() throws Exception { + BufferedImage inImage = new BufferedImage(100, 100, BufferedImage.TYPE_INT_ARGB); + Graphics g = inImage.getGraphics(); + g.setColor(new Color(0xAA112233, true)); + g.fillRect(0, 0, inImage.getWidth(), inImage.getHeight()); + g.dispose(); + + Shell shell = new Shell(); + Display display = shell.getDisplay(); + + Image outImage = SwtUtils.convertToSwt(display, inImage, false, 128); + assertNotNull(outImage); + + ImageData outData = outImage.getImageData(); + assertEquals(inImage.getWidth(), outData.width); + assertEquals(inImage.getHeight(), outData.height); + assertEquals(128, outData.alpha); + assertEquals(SWT.TRANSPARENCY_NONE, outData.getTransparencyType()); + assertNull(outData.alphaData); + + PaletteData inPalette = SwtUtils.getAwtPaletteData(inImage.getType()); + PaletteData outPalette = outData.palette; + + for (int y = 0; y < outData.height; y++) { + for (int x = 0; x < outData.width; x++) { + + RGB expected = inPalette.getRGB( inImage.getRGB( x, y)); + RGB actual = outPalette.getRGB(outData.getPixel(x, y)); + assertEquals(expected, actual); + } + } + } + + public void testImageConvertAlpha() throws Exception { + BufferedImage inImage = new BufferedImage(100, 100, BufferedImage.TYPE_INT_ARGB); + Graphics g = inImage.getGraphics(); + g.setColor(new Color(0xAA112233, true)); + g.fillRect(0, 0, inImage.getWidth(), inImage.getHeight()); + g.dispose(); + + Shell shell = new Shell(); + Display display = shell.getDisplay(); + + Image outImage = SwtUtils.convertToSwt(display, inImage, true, -1); + assertNotNull(outImage); + + ImageData outData = outImage.getImageData(); + assertEquals(inImage.getWidth(), outData.width); + assertEquals(inImage.getHeight(), outData.height); + assertEquals(SWT.TRANSPARENCY_ALPHA, outData.getTransparencyType()); + + PaletteData inPalette = SwtUtils.getAwtPaletteData(inImage.getType()); + PaletteData outPalette = outData.palette; + + for (int y = 0; y < outData.height; y++) { + for (int x = 0; x < outData.width; x++) { + RGB expected = inPalette.getRGB( inImage.getRGB( x, y)); + RGB actual = outPalette.getRGB(outData.getPixel(x, y)); + assertEquals(expected, actual); + + // Note: >> instead of >>> since we will compare with byte (a signed number) + int expectedAlpha = inImage.getRGB(x, y) >> 24; + int actualAlpha = outData.alphaData[y * outData.width + x]; + assertEquals(expectedAlpha, actualAlpha); + } + } + } + + public void testImageConvertAlphaMultiplied() throws Exception { + BufferedImage inImage = new BufferedImage(100, 100, BufferedImage.TYPE_INT_ARGB); + Graphics g = inImage.getGraphics(); + g.setColor(new Color(0xAA112233, true)); + g.fillRect(0, 0, inImage.getWidth(), inImage.getHeight()); + g.dispose(); + + Shell shell = new Shell(); + Display display = shell.getDisplay(); + Image outImage = SwtUtils.convertToSwt(display, inImage, true, 32); + assertNotNull(outImage); + + // Expected alpha is 0xAA from the AWT input image pre-multiplied by 32 in convertToSwt. + int expectedAlpha = (0xAA * 32) >> 8; + + ImageData outData = outImage.getImageData(); + assertEquals(inImage.getWidth(), outData.width); + assertEquals(inImage.getHeight(), outData.height); + assertEquals(SWT.TRANSPARENCY_ALPHA, outData.getTransparencyType()); + + PaletteData inPalette = SwtUtils.getAwtPaletteData(inImage.getType()); + PaletteData outPalette = outData.palette; + + for (int y = 0; y < outData.height; y++) { + for (int x = 0; x < outData.width; x++) { + RGB expected = inPalette.getRGB( inImage.getRGB( x, y)); + RGB actual = outPalette.getRGB(outData.getPixel(x, y)); + assertEquals(expected, actual); + + byte actualAlpha = outData.alphaData[y * outData.width + x]; + assertEquals(expectedAlpha, actualAlpha); + } + } + } + + public final void testSetRectangle() { + Rect r = new Rect(1, 2, 3, 4); + Rectangle r2 = new Rectangle(3, 4, 20, 30); + SwtUtils.set(r, r2); + + assertEquals(3, r.x); + assertEquals(4, r.y); + assertEquals(20, r.w); + assertEquals(30, r.h); + } + + public final void testRectRectangle() { + Rectangle r = new Rectangle(3, 4, 20, 30); + Rect r2 = SwtUtils.toRect(r); + + assertEquals(3, r2.x); + assertEquals(4, r2.y); + assertEquals(20, r2.w); + assertEquals(30, r2.h); + } + + public final void testCropEmpty() { + Image image = createSampleImage(256, 256); + Image result = SwtUtils.drawRectangles(image, Collections.<Rectangle> emptyList(), null, + 1.0, (byte) 121); + assertNull(result); + } + + public final void testCrop1() { + Image image = createSampleImage(256, 256); + + byte alpha = 121; + double scale = 1.0; + + List<Rectangle> items = new ArrayList<Rectangle>(); + items.add(new Rectangle(30, 60, 20, 20)); + Image result = + SwtUtils.drawRectangles(image, items, ImageUtils.getBoundingRectangle(items), + scale, alpha); + + assertNotNull(result); + ImageData outData = result.getImageData(); + assertEquals(20, outData.width); + assertEquals(20, outData.height); + + PaletteData outPalette = outData.palette; + assertNotNull(outPalette); + + byte[] outAlphaData = outData.alphaData; + assertNotNull(outAlphaData); + + for (int y = 0; y < 20; y++) { + for (int x = 0; x < 20; x++) { + int r = y + 60; + int g = x + 30; + + RGB expected = new RGB(r, g, 0); + RGB actual = outPalette.getRGB(outData.getPixel(x, y)); + assertEquals(expected, actual); + + byte actualAlpha = outAlphaData[y*20+x]; + assertEquals(alpha, actualAlpha); + } + } + } + + public final void testCrop2() { + Image image = createSampleImage(256, 256); + + byte alpha = 121; + double scale = 1.0; + + List<Rectangle> items = new ArrayList<Rectangle>(); + items.add(new Rectangle(10, 10, 20, 20)); + items.add(new Rectangle(110, 80, 20, 20)); + Image result = + SwtUtils.drawRectangles(image, items, ImageUtils.getBoundingRectangle(items), + scale, alpha); + + assertNotNull(result); + ImageData outData = result.getImageData(); + assertEquals(120, outData.width); + assertEquals(90, outData.height); + + PaletteData outPalette = outData.palette; + assertNotNull(outPalette); + + byte[] outAlphaData = outData.alphaData; + assertNotNull(outAlphaData); + + for (int y = 0; y < 20; y++) { + for (int x = 0; x < 20; x++) { + int r = y + 10; + int g = x + 10; + + RGB expected = new RGB(r, g, 0); + RGB actual = outPalette.getRGB(outData.getPixel(x, y)); + assertEquals(expected, actual); + + assertEquals(alpha, outAlphaData[y*120+x]); + } + } + for (int y = 70; y < 90; y++) { + for (int x = 100; x < 120; x++) { + int r = y + 10; + int g = x + 10; + + RGB expected = new RGB(r, g, 0); + RGB actual = outPalette.getRGB(outData.getPixel(x, y)); + assertEquals(expected, actual); + + assertEquals(alpha, outAlphaData[y*120+x]); + } + } + assertEquals(0, outAlphaData[40]); + } + + /** + * Crop test utility: Create a sample image patterned with red=y and green=x, suitable + * for checking that in image copying operations we've copied and scaled the right + * bits. (Obviously the red/green will be mod'ed with 256). + * + * @param imageWidth the width of the target image + * @param imageHeight the height of the target image + * @return a new image with a red/green pattern + */ + private Image createSampleImage(int imageWidth, int imageHeight) { + Shell shell = new Shell(); + Display display = shell.getDisplay(); + + ImageData data = new ImageData(imageWidth, imageHeight, 32, new PaletteData(0x00FF0000, + 0x0000FF00, 0x000000FF)); + for (int y = 0; y < imageHeight; y++) { + for (int x = 0; x < imageWidth; x++) { + int pixelValue = (y & 0xFF) << 16 | (x & 0xFF) << 8; + data.setPixel(x, y, pixelValue); + } + } + Image image = new Image(display, data); + return image; + } +} |