Initial project

src/main/java/com/imyeyu/fx/utils/ScreenFX.java

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+package com.imyeyu.fx.utils;
+
+import javafx.collections.ListChangeListener;
+import javafx.geometry.BoundingBox;
+import javafx.geometry.Bounds;
+import javafx.geometry.Rectangle2D;
+import javafx.stage.Screen;
+import javafx.stage.Stage;
+import com.imyeyu.utils.Digest;
+
+import java.security.NoSuchAlgorithmException;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 多屏操作，可在所有屏幕显示标识，并提供选择参考
+ *
+ * @author 夜雨
+ * @since 2021-11-11 21:02
+ */
+public class ScreenFX extends Stage {
+
+	/** 主屏幕 */
+	public static final Screen primary = Screen.getPrimary();
+
+	/** 所有屏幕 */
+	public static final List<Screen> SCREENS;
+
+	static {
+		SCREENS = new ArrayList<>(Screen.getScreens());
+		SCREENS.sort((s1, s2) -> (int) (s2.getBounds().getMinX() - s1.getBounds().getMinX()));
+		Screen.getScreens().addListener((ListChangeListener<Screen>) c -> {
+			SCREENS.clear();
+			SCREENS.addAll(Screen.getScreens());
+			SCREENS.sort((s1, s2) -> (int) (s2.getBounds().getMinX() - s1.getBounds().getMinX()));
+		});
+	}
+
+	// ---------- 静态功能 ----------
+
+	/**
+	 * 此屏幕参数 MD5
+	 *
+	 * @param screen 屏幕
+	 * @return MD5
+	 */
+	public static String md5(Screen screen) throws NoSuchAlgorithmException {
+		Rectangle2D r = screen.getBounds();
+		return Digest.md5(String.valueOf(r.getMinX()) + r.getMinY() + r.getMaxX() + r.getMaxY() + r.getWidth() + r.getHeight());
+	}
+
+	/**
+	 * 获取坐标所在屏幕
+	 *
+	 * @param x 坐标
+	 * @param y 坐标
+	 * @return 屏幕（在所有屏幕之外时返回 null）
+	 */
+	public static Screen getScreenByXY(double x, double y) {
+		for (int i = 0; i < SCREENS.size(); i++) {
+			if (isInScreen(SCREENS.get(i), x, y)) {
+				return SCREENS.get(i);
+			}
+		}
+		return null;
+	}
+
+	/**
+	 * 该坐标是否溢出屏幕
+	 *
+	 * @param x 坐标
+	 * @param y 坐标
+	 * @return true 为溢出
+	 */
+	public static boolean outOfScreen(double x, double y) {
+		return getScreenByXY(x, y) == null;
+	}
+
+	/**
+	 * 判定该坐标是否在屏幕内
+	 *
+	 * @param screen 屏幕
+	 * @param x      坐标
+	 * @param y      坐标
+	 * @return true 为存在
+	 */
+	public static boolean isInScreen(Screen screen, double x, double y) {
+		final Rectangle2D r = screen.getBounds();
+		return !(x < r.getMinX() || r.getMaxX() < x || y < r.getMinY() || r.getMaxY() < y);
+	}
+
+	/**
+	 * 获取任务栏属性
+	 *
+	 * @param screen 屏幕
+	 * @return 任务栏属性
+	 */
+	public static Bounds getTaskbarBounds(Screen screen) {
+		if (screen == null) {
+			return null;
+		}
+		Rectangle2D sb = screen.getBounds();
+		Rectangle2D vb = screen.getVisualBounds();
+		if (sb.getMinY() < vb.getMinY()) {
+			// 顶
+			return new BoundingBox(sb.getMinX(), sb.getMinY(), sb.getWidth(), sb.getHeight() - vb.getHeight());
+		}
+		if (vb.getMaxY() < sb.getMaxY()) {
+			// 底
+			return new BoundingBox(sb.getMinX(), vb.getMaxY(), sb.getWidth(), sb.getHeight() - vb.getHeight());
+		}
+		if (sb.getMinX() < vb.getMinX()) {
+			// 左
+			return new BoundingBox(sb.getMinX(), sb.getMinY(), sb.getWidth() - vb.getWidth(), sb.getHeight());
+		}
+		if (vb.getMaxX() < sb.getMaxX()) {
+			// 右
+			return new BoundingBox(vb.getMaxX(), sb.getMinY(), sb.getWidth() - vb.getWidth(), sb.getHeight());
+		}
+		return null;
+	}
+}