JavaFX：为什么 stage.setResizable(false) 会导致额外的边距？
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JavaFX: Why does stage.setResizable(false) cause additional margins?
提问by Jens Piegsa
This small JavaFX test application
这个小型 JavaFX 测试应用程序
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.BorderPane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;
public class ApplicationWithNonResizableStage extends Application {
public static void main(final String[] args) {
launch(args);
}
@Override
public void start(final Stage primaryStage) throws Exception {
final Rectangle rectangle = new Rectangle(200, 100, Color.POWDERBLUE);
final BorderPane pane = new BorderPane(rectangle);
final Scene scene = new Scene(pane);
primaryStage.setScene(scene);
primaryStage.setResizable(false);
primaryStage.show();
}
}
produce a window with unwanted padding:
生成一个带有不需要的填充的窗口：
Removing the call primaryStage.setResizable(false)also removes the effect:
删除调用primaryStage.setResizable(false)也会删除效果：
What is going wrong?
出了什么问题？
采纳答案by kleopatra
As already commented, this different behaviour of !/resizable smells like a bug (somebody might consider filing an issue ;-)
正如已经评论过的，这种不同的 !/resizable 行为闻起来像一个错误（有人可能会考虑提交问题；-）
A shorter (than sizing manually) way around is to explicitly fit the stage to the scene:
一种更短（比手动调整大小）的方法是明确地使舞台适合场景：
primaryStage.setScene(scene);
primaryStage.setResizable(false);
primaryStage.sizeToScene();
Just noticed that this works for jdk8, but not jdk7.
只是注意到这适用于 jdk8，但不适用于 jdk7。
For convenience, a bug update: the original report filed by jewelsea was closed as a duplicate of (in new coordinates) https://bugs.openjdk.java.net/browse/JDK-8089008- still open, commented to be win-only.
为方便起见，错误更新：jewelsea 提交的原始报告已作为（在新坐标中）https://bugs.openjdk.java.net/browse/JDK-8089008的副本关闭- 仍然打开，评论为胜利-只要。
回答by Mikhail_Bjornson
Try creating a dimension for the size you want the frame- Dimension name = new Dimension(height,width)- then set that Dimension size to the rectangle BorderPane and Scene. You do want everything to be the same size correct?
尝试为您想要框架的大小创建一个维度Dimension name = new Dimension(height,width)- 然后将该维度大小设置为矩形 BorderPane 和 Scene。您确实希望所有东西的大小都相同吗？
回答by Jens Piegsa
Although this is not explanation, it solves the problem:
虽然这不是解释，但它解决了问题：
@Override
public void start(final Stage primaryStage) throws Exception {
final Dimension d = new Dimension(210, 110);
final Rectangle rectangle = new Rectangle(d.width, d.height, Color.POWDERBLUE);
final BorderPane pane = new BorderPane(rectangle);
pane.maxWidth(d.height);
pane.maxWidth(d.width);
final Scene scene = new Scene(pane, d.width, d.height);
primaryStage.setScene(scene);
primaryStage.setResizable(false);
primaryStage.setWidth(d.width);
primaryStage.setHeight(d.height);
primaryStage.show();
}
Key is setting width and height of the Stageat the right time.
关键是Stage在正确的时间设置宽度和高度。
