以下代码是JavaFX自定义标题栏：隐藏窗口、放大和缩小窗口、关闭窗口、自定义拉伸窗口、拖拽窗口
import info.mixun.javafx.manager.MixunResourcesManager;
import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.geometry.Rectangle2D;
import javafx.scene.Cursor;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.image.ImageView;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.Priority;
import javafx.scene.paint.Paint;
import javafx.scene.text.Font;
import javafx.stage.Screen;
import javafx.stage.Stage;
import javafx.stage.StageStyle;
public class JavaFXTest extends Application {
private double x = 0.00;
private double y = 0.00;
private double width = 0.00;
private double height = 0.00;
private boolean isMax = false;
private boolean isRight;// 是否处于右边界调整窗口状态
private boolean isBottomRight;// 是否处于右下角调整窗口状态
private boolean isBottom;// 是否处于下边界调整窗口状态
private double RESIZE_WIDTH = 5.00;
private double MIN_WIDTH = 400.00;
private double MIN_HEIGHT = 300.00;
private double xOffset = 0, yOffset = 0;//自定义dialog移动横纵坐标
@Override
public void start(Stage primaryStage) throws Exception {
primaryStage.initStyle(StageStyle.TRANSPARENT);
BorderPane root = new BorderPane();
GridPane gpTitle = new GridPane();
gpTitle.setAlignment(Pos.CENTER_LEFT);
gpTitle.setPadding(new Insets(10));
Label lbTitle = new Label("自定义窗口");
lbTitle.setGraphic(new ImageView("wechat_icon.png"));
Button btnMin = new Button("—");
Button btnMax = new Button("口");
Button btnClose = new Button("X");
gpTitle.add(lbTitle, 0 , 0);
gpTitle.add(btnMin, 1, 0);
gpTitle.add(btnMax, 2, 0);
gpTitle.add(btnClose, 3, 0);
GridPane.setHgrow(lbTitle, Priority.ALWAYS);
root.setTop(gpTitle);
Label lbTips = new Label("Welcome to learn javafx!!!");
lbTips.setFont(Font.font(20));
lbTips.setTextFill(Paint.valueOf("red"));
root.setCenter(lbTips);
root.setStyle("-fx-background-color: white ;-fx-border-color: rgb(128,128,64); -fx-border-width: 1;");
gpTitle.setStyle("-fx-background-color: rgb(58.0,154.0,242.0);");
btnMin.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
primaryStage.setIconified(true);
}
});
btnMax.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
Rectangle2D rectangle2d = Screen.getPrimary().getVisualBounds();
isMax = !isMax;
if (isMax) {
// 最大化
primaryStage.setX(rectangle2d.getMinX());
primaryStage.setY(rectangle2d.getMinY());
primaryStage.setWidth(rectangle2d.getWidth());
primaryStage.setHeight(rectangle2d.getHeight());
} else {
// 缩放回原来的大小
primaryStage.setX(x);
primaryStage.setY(y);
primaryStage.setWidth(width);
primaryStage.setHeight(height);
}
}
});
btnClose.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
primaryStage.close();
}
});
primaryStage.xProperty().addListener(new ChangeListener<Number>() {
@Override
public void changed(ObservableValue<? extends Number> observable, Number oldValue, Number newValue) {
if (newValue != null && !isMax) {
x = newValue.doubleValue();
}
}
});
primaryStage.yProperty().addListener(new ChangeListener<Number>() {
@Override
public void changed(ObservableValue<? extends Number> observable, Number oldValue, Number newValue) {
if (newValue != null && !isMax) {
y = newValue.doubleValue();
}
}
});
primaryStage.widthProperty().addListener(new ChangeListener<Number>() {
@Override
public void changed(ObservableValue<? extends Number> observable, Number oldValue, Number newValue) {
if (newValue != null && !isMax) {
width = newValue.doubleValue();
}
}
});
primaryStage.heightProperty().addListener(new ChangeListener<Number>() {
@Override
public void changed(ObservableValue<? extends Number> observable, Number oldValue, Number newValue) {
if (newValue != null && !isMax) {
height = newValue.doubleValue();
}
}
});
root.setOnMouseMoved((MouseEvent event) -> {
event.consume();
double x = event.getSceneX();
double y = event.getSceneY();
double width = primaryStage.getWidth();
double height = primaryStage.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
//不处理
} 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
root.setCursor(cursorType);
});
root.setOnMouseDragged((MouseEvent event) -> {
//根据鼠标的横纵坐标移动dialog位置
event.consume();
if (yOffset != 0 ) {
primaryStage.setX(event.getScreenX() - xOffset);
if (event.getScreenY() - yOffset < 0) {
primaryStage.setY(0);
} else {
primaryStage.setY(event.getScreenY() - yOffset);
}
}
double x = event.getSceneX();
double y = event.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
double nextX = primaryStage.getX();
double nextY = primaryStage.getY();
double nextWidth = primaryStage.getWidth();
double nextHeight = primaryStage.getHeight();
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
primaryStage.setX(nextX);
primaryStage.setY(nextY);
primaryStage.setWidth(nextWidth);
primaryStage.setHeight(nextHeight);
});
//鼠标点击获取横纵坐标
root.setOnMousePressed(event -> {
event.consume();
xOffset = event.getSceneX();
if (event.getSceneY() > 46) {
yOffset = 0;
} else {
yOffset = event.getSceneY();
}
});
//根据鼠标移动的位置改变鼠标的样式
// root.setOnMouseMoved(event -> {
// event.consume();
// if (event.getSceneY() > 46) {
// root.getStyleClass().removeAll("sursor-move");
// } else {
// root.getStyleClass().add("sursor-move");
// }
// });
Scene scene = new Scene(root, 400, 300);
primaryStage.setScene(scene);
primaryStage.setTitle("自定义窗口");
primaryStage.getIcons().add("wechatIcon.png");
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
