如何在JavaFX TitledPane中设置/删除insets [英] How to set/remove insets in JavaFX TitledPane

问题描述

我在JavaFX中使用单个子组件（按钮）创建了一个TitledPane，如下所示：

I've created a TitledPane in JavaFX with a single child component (a button) as follows:

<?import java.lang.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>

<AnchorPane id="AnchorPane" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">
    <children>
        <TitledPane animated="false" layoutX="137.0" layoutY="60.0" prefHeight="400.0" prefWidth="600.0" text="untitled" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
            <content>
                <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0" >
                    <children >
                        <Button layoutX="193.1875" layoutY="133.5" mnemonicParsing="false" prefHeight="374.0" prefWidth="598.0" text="Button" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0" />
                    </children>
                </AnchorPane>
            </content>
        </TitledPane>
    </children>
</AnchorPane>

如下所示。按钮周围有相当多的间距，我想将其减少到0或者可能是单个像素。我没有看到任何可以执行此操作的AnchorPane或TitledPane的属性。是否有这样的财产？

This appears as below. There is quite a bit a spacing around the button, I'd like to reduce this to either 0 or maybe, a single pixel. I don't see any property of either the AnchorPane or the TitledPane that will do this. Is there such a property?

推荐答案

使用风景视图以找出这样的问题。

Use Scenic View to figure out issues like this.

TitledPane内的AnchorPane四面都有0.8em（10px）的填充。这在默认样式表modena.css中定义。您可以在FXML中重置它：

The AnchorPane inside the TitledPane has padding of 0.8em (10px) on all sides. This is defined in the default stylesheet, modena.css. You can reset it in the FXML:

<?import java.lang.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.geometry.Insets?>

<AnchorPane id="AnchorPane" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">
    <children>
        <TitledPane animated="false" text="untitled" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
            <content>
                <AnchorPane >
                <padding>
                        <Insets top="0" right="0" left="0" bottom="0"/>                 
                </padding>
                    <children >
                        <Button mnemonicParsing="false" text="Button" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0" />
                    </children>
                </AnchorPane>
            </content>
        </TitledPane>
    </children>
</AnchorPane>

或外部样式表

.titled-pane > * > * > AnchorPane {
    -fx-padding: 0em ;
}

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