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Move out cathash methods to new class
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apps/desktop/desktop/src/main/java/bisq/desktop/common/utils/CatHashImageUtil.java
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| @@ -0,0 +1,108 @@ | ||
| /* | ||
| * This file is part of Bisq. | ||
| * | ||
| * Bisq is free software: you can redistribute it and/or modify it | ||
| * under the terms of the GNU Affero General Public License as published by | ||
| * the Free Software Foundation, either version 3 of the License, or (at | ||
| * your option) any later version. | ||
| * | ||
| * Bisq is distributed in the hope that it will be useful, but WITHOUT | ||
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public | ||
| * License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Affero General Public License | ||
| * along with Bisq. If not, see <http://www.gnu.org/licenses/>. | ||
| */ | ||
|
|
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| package bisq.desktop.common.utils; | ||
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| import bisq.common.file.FileUtils; | ||
| import javafx.scene.SnapshotParameters; | ||
| import javafx.scene.canvas.Canvas; | ||
| import javafx.scene.canvas.GraphicsContext; | ||
| import javafx.scene.image.*; | ||
| import javafx.scene.paint.Color; | ||
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|
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| import java.io.ByteArrayInputStream; | ||
| import java.io.ByteArrayOutputStream; | ||
| import java.io.File; | ||
| import java.io.IOException; | ||
| import java.nio.ByteBuffer; | ||
|
|
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| public class CatHashImageUtil { | ||
| private static final String BASE_PATH = "images/cathash/"; | ||
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| public static Image composeImage(String[] paths, double size) { | ||
| return composeImage(paths, size, size); | ||
| } | ||
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| public static Image composeImage(String[] paths, double width, double height) { | ||
| return composeImage(paths, BASE_PATH, width, height); | ||
| } | ||
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| public static Image composeImage(String[] paths, String basePath, double width, double height) { | ||
| Canvas canvas = new Canvas(); | ||
| canvas.setWidth(width); | ||
| canvas.setHeight(height); | ||
| GraphicsContext graphicsContext2D = canvas.getGraphicsContext2D(); | ||
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| double radius = Math.min(height, width) / 2d; | ||
| double x = width / 2d; | ||
| double y = height / 2d; | ||
| graphicsContext2D.beginPath(); | ||
| graphicsContext2D.moveTo(x - radius, y); | ||
| graphicsContext2D.arc(x, y, radius, radius, 180, 360); | ||
| graphicsContext2D.closePath(); | ||
| graphicsContext2D.clip(); | ||
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| for (String path : paths) { | ||
| graphicsContext2D.drawImage(new Image(basePath + path), 0, 0, width, height); | ||
| } | ||
| SnapshotParameters snapshotParameters = new SnapshotParameters(); | ||
| snapshotParameters.setFill(Color.TRANSPARENT); | ||
| return canvas.snapshot(snapshotParameters, null); | ||
| } | ||
|
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| public static Image readRawImage(File file) throws IOException { | ||
| byte[] rawData = FileUtils.read(file.getAbsolutePath()); | ||
| return byteArrayToImage(rawData); | ||
| } | ||
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| public static void writeRawImage(Image image, File file) throws IOException { | ||
| byte[] rawData = imageToByteArray(image); | ||
| FileUtils.write(file.getAbsolutePath(), rawData); | ||
| } | ||
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| public static Image byteArrayToImage(byte[] data) { | ||
| ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(data); | ||
|
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| int width = byteArrayInputStream.read(); | ||
| int height = byteArrayInputStream.read(); | ||
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| byte[] pixels = new byte[width * height * 4]; | ||
| byteArrayInputStream.read(pixels, 0, pixels.length); | ||
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| WritableImage image = new WritableImage(width, height); | ||
| PixelWriter pixelWriter = image.getPixelWriter(); | ||
| pixelWriter.setPixels(0, 0, width, height, PixelFormat.getByteBgraInstance(), pixels, 0, width * 4); | ||
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| return image; | ||
| } | ||
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| public static byte[] imageToByteArray(Image image) { | ||
| int width = (int) image.getWidth(); | ||
| int height = (int) image.getHeight(); | ||
| PixelReader pixelReader = image.getPixelReader(); | ||
| ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(); | ||
| byteArrayOutputStream.write(width); | ||
| byteArrayOutputStream.write(height); | ||
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| ByteBuffer buffer = ByteBuffer.allocate(width * height * 4); // 4 bytes per pixel (ARGB) | ||
| WritablePixelFormat<ByteBuffer> format = WritablePixelFormat.getByteBgraInstance(); | ||
| pixelReader.getPixels(0, 0, width, height, format, buffer, width * 4); | ||
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| byteArrayOutputStream.write(buffer.array(), 0, buffer.array().length); | ||
| return byteArrayOutputStream.toByteArray(); | ||
| } | ||
| } |
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