修复了文件丢失问题

2019-07-04 10:59:17 +08:00
parent 059c5c8193
commit 5cd92e9e8f
13 changed files with 661 additions and 320 deletions
--- a/src/main/java/cn/edu/scau/biubiusuisui/function/DragWindowHandlerImpl.java
+++ b/src/main/java/cn/edu/scau/biubiusuisui/function/DragWindowHandlerImpl.java
@@ -0,0 +1,119 @@
+package cn.edu.scau.biubiusuisui.function;
+
+import javafx.event.EventHandler;
+import javafx.scene.Cursor;
+import javafx.scene.input.MouseEvent;
+import javafx.scene.layout.AnchorPane;
+import javafx.scene.layout.Pane;
+import javafx.stage.Stage;
+
+/**
+ * @Author jack
+ * @Date:2019/6/30 10:11
+ */
+public class DragWindowHandlerImpl implements EventHandler<MouseEvent> {
+    //参考<a href="https://www.cnblogs.com/moonlightL/p/5982679.html"></a>
+    private Stage stage;        //primaryStage为start方法头中的Stage
+    private double oldStageX;
+    private double oldStageY;
+    private double oldScreenX;
+    private double oldScreenY;
+    final int RESIZE_WIDTH = 5;// 判定是否为调整窗口状态的范围与边界距离
+    private double MIN_WIDTH = 300;// 窗口最小宽度
+    private double MIN_HEIGHT = 250;// 窗口最小高度
+    boolean isRight;// 是否处于右边界调整窗口状态
+    boolean isBottomRight;// 是否处于右下角调整窗口状态
+    boolean isBottom;// 是否处于下边界调整窗口状态
+    private Pane pane;
+    private boolean fix = false;
+
+    public DragWindowHandlerImpl(Stage primaryStage, Pane pane,boolean fix) {        //构造器
+        this.stage = primaryStage;
+        this.pane = pane;
+        this.fix = fix;
+    }
+
+    public DragWindowHandlerImpl(Stage stage, double MIN_WIDTH, double MIN_HEIGHT, Pane pane, boolean fix) {
+        this.stage = stage;
+        this.MIN_WIDTH = MIN_WIDTH;
+        this.MIN_HEIGHT = MIN_HEIGHT;
+        this.pane = pane;
+        this.fix = fix;
+    }
+
+    @Override
+    public void handle(MouseEvent e) {
+
+        if (e.getEventType() == MouseEvent.MOUSE_PRESSED) {    //鼠标按下的事件
+            this.oldStageX = this.stage.getX();
+            this.oldStageY = this.stage.getY();
+            this.oldScreenX = e.getScreenX();
+            this.oldScreenY = e.getScreenY();
+
+        } else if (e.getEventType() == MouseEvent.MOUSE_DRAGGED) {  //鼠标拖动的事件
+            //
+            double nextX = stage.getX();
+            double nextY = stage.getY();
+            double nextWidth = stage.getWidth();
+            double nextHeight = stage.getHeight();
+            if(!fix) {
+                double x = e.getSceneX();
+                double y = e.getSceneY();
+                // 保存窗口改变后的x、y坐标和宽度、高度，用于预判是否会小于最小宽度、最小高度
+
+
+                if (isRight || isBottomRight) {// 所有右边调整窗口状态
+                    nextWidth = x;
+                }
+                if (isBottomRight || isBottom) {// 所有下边调整窗口状态
+                    nextHeight = y;
+                }
+                if (nextWidth <= MIN_WIDTH) {// 如果窗口改变后的宽度小于最小宽度，则宽度调整到最小宽度
+                    nextWidth = MIN_WIDTH;
+                }
+                if (nextHeight <= MIN_HEIGHT) {// 如果窗口改变后的高度小于最小高度，则高度调整到最小高度
+                    nextHeight = MIN_HEIGHT;
+                }
+            }
+
+            // 最后统一改变窗口的x、y坐标和宽度、高度，可以防止刷新频繁出现的屏闪情况
+            if(isBottom ||isBottomRight ||isRight) {
+                stage.setX(nextX);
+                stage.setY(nextY);
+                stage.setWidth(nextWidth);
+                stage.setHeight(nextHeight);
+            }else {
+                this.stage.setX(e.getScreenX() - this.oldScreenX + this.oldStageX);
+                this.stage.setY(e.getScreenY() - this.oldScreenY + this.oldStageY);
+            }
+        } else if (e.getEventType() == MouseEvent.MOUSE_MOVED) {
+            if(!fix) {
+                e.consume();
+                double x = e.getSceneX();
+                double y = e.getSceneY();
+                double width = stage.getWidth();
+                double height = stage.getHeight();
+                Cursor cursorType = Cursor.DEFAULT;// 鼠标光标初始为默认类型，若未进入调整窗口状态，保持默认类型
+                // 先将所有调整窗口状态重置
+                isRight = isBottomRight = isBottom = false;
+                if (y >= height - RESIZE_WIDTH) {
+                    if (x <= RESIZE_WIDTH) {// 左下角调整窗口状态
+
+                    } else if (x >= width - RESIZE_WIDTH) {// 右下角调整窗口状态
+                        isBottomRight = true;
+                        cursorType = Cursor.SE_RESIZE;
+                    } else {// 下边界调整窗口状态
+                        isBottom = true;
+                        cursorType = Cursor.S_RESIZE;
+                    }
+                } else if (x >= width - RESIZE_WIDTH) {// 右边界调整窗口状态
+                    isRight = true;
+                    cursorType = Cursor.E_RESIZE;
+                }
+                // 最后改变鼠标光标
+
+                pane.setCursor(cursorType);
+            }
+        }
+    }
+}