Create ScreenPrinterWayland.java

This file is to contain screen capture functionality for Wayland Linux systems utilizing OpenJFX.  The output will be compatible with OpenCV, which is used for all other systems.  This is intended to minimize changes in the image processing workflow for OCR.

Author: BlueboyZX

src/main/java/tools/sctrade/companion/input/ScreenPrinterWayland.java

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+import javafx.application.Application;
+import javafx.geometry.Rectangle2D;
+import javafx.scene.SnapshotParameters;
+import javafx.scene.image.Image;
+import javafx.scene.image.PixelReader;
+import javafx.scene.image.WritableImage;
+import javafx.stage.Screen;
+import javafx.stage.Stage;
+
+import org.opencv.core.Mat;
+import org.opencv.imgcodecs.Imgcodecs;
+
+public class WaylandScreenCapture {
+
+    // Assuming you have OpenCV setup correctly in your project
+
+    public static Mat captureScreenshot() {
+        // Get primary screen bounds
+        Rectangle2D screenBounds = Screen.getPrimary().getBounds();
+
+        // Create a SnapshotParameters object
+        SnapshotParameters params = new SnapshotParameters();
+        params.setFill(javafx.scene.paint.Color.TRANSPARENT); // Transparent background for accurate capture
+
+        // Capture the screenshot as a WritableImage
+        WritableImage image = Screen.getPrimary().snapshot(params, null);
+
+        // Get pixel reader from the captured image
+        PixelReader reader = image.getPixelReader();
+
+        // Create OpenCV Mat to store captured pixels
+        Mat mat = new Mat((int) screenBounds.getHeight(), (int) screenBounds.getWidth(), org.opencv.core.CvType.CV_8UC3);
+
+        // Iterate over the pixels and copy them into the OpenCV Mat
+        for (int y = 0; y < image.getHeight(); y++) {
+            for (int x = 0; x < image.getWidth(); x++) {
+                javafx.scene.paint.Color color = reader.getColor(x, y);
+
+                // Convert JavaFX Color to OpenCV BGR format
+                mat.put(y, x, new double[]{color.getBlue() * 255, color.getGreen() * 255, color.getRed() * 255});
+            }
+        }
+
+        return mat;
+    }