JavaFx：按钮边框和悬停
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JavaFx: Button border and hover
提问by
I am using Java 8. I have toolbar and buttons on it.
我使用的是 Java 8。我有工具栏和按钮。
I want to implement the following:
我想实现以下内容：
- In usual state (without mouse hover) at toolbar, only button label must be seen (no background, nor borders).
- When the user mouse hovers over the button, then the usual button must be seen.
- 在工具栏的通常状态下（没有鼠标悬停），只能看到按钮标签（没有背景，也没有边框）。
- 当用户鼠标悬停在按钮上时，必须看到通常的按钮。
How to do it via css?
如何通过css做到这一点？
采纳答案by ItachiUchiha
Use the styles to remove the background :
使用样式删除背景：
.button {
-fx-background-color: transparent;
}
On hover, to bring back everything just use the button style from modena.css:
在悬停时，只需使用以下按钮样式即可恢复所有内容modena.css：
.button:hover{
-fx-background-color: -fx-shadow-highlight-color, -fx-outer-border, -fx-inner-border, -fx-body-color;
-fx-background-insets: 0 0 -1 0, 0, 1, 2;
-fx-background-radius: 3px, 3px, 2px, 1px;
-fx-padding: 0.333333em 0.666667em 0.333333em 0.666667em; /* 4 8 4 8 */
-fx-text-fill: -fx-text-base-color;
-fx-alignment: CENTER;
-fx-content-display: LEFT;
}
回答by Rahel Lüthy
Background transparency can be controlled through mouse listeners, i.e. by setting the CSS programmatically (which alleviates the need for an external stylesheet):
可以通过鼠标侦听器控制背景透明度，即通过以编程方式设置 CSS（这减少了对外部样式表的需要）：
final String IDLE_BUTTON_STYLE = "-fx-background-color: transparent;";
final String HOVERED_BUTTON_STYLE = "-fx-background-color: -fx-shadow-highlight-color, -fx-outer-border, -fx-inner-border, -fx-body-color;";
button.setStyle(IDLE_BUTTON_STYLE);
button.setOnMouseEntered(e -> button.setStyle(HOVERED_BUTTON_STYLE));
button.setOnMouseExited(e -> button.setStyle(IDLE_BUTTON_STYLE));
回答by mohammed thaha jk
I agree with netzwerg. If you are using fxml with javafx then you should include these lines of codes in initialize() method of your controller class.
我同意 netzwerg。如果您将 fxml 与 javafx 一起使用，那么您应该在控制器类的 initialize() 方法中包含这些代码行。
Example of controller class:
控制器类示例：
public class Controller implements Initializable{
private Button test;
private static final String IDLE_BUTTON_STYLE = "-fx-background-color: transparent;";
private static final String HOVERED_BUTTON_STYLE = "-fx-background-color: -fx-shadow-highlight-color, -fx-outer-border, -fx-inner-border, -fx-body-color;";
@Override
public void initialize(URL location, ResourceBundle resources) {
button.setStyle(IDLE_BUTTON_STYLE);
button.setOnMouseEntered(e -> button.setStyle(HOVERED_BUTTON_STYLE));
button.setOnMouseExited(e -> button.setStyle(IDLE_BUTTON_STYLE));
}
}
