JavaFXGridPane中的相对大小调整
如何使用权重设置行/列大小 例如,如果我想要五行,其中三行是未知的固定大小,一行占用剩余空间的三分之一,另一行占用剩余空间的三分之二(见下图),我如何实现这一点 我研究了如何使用JavaFXGridPane中的相对大小调整,java,javafx,gridpane,Java,Javafx,Gridpane,如何使用权重设置行/列大小 例如,如果我想要五行,其中三行是未知的固定大小,一行占用剩余空间的三分之一,另一行占用剩余空间的三分之二(见下图),我如何实现这一点 我研究了如何使用RowConstraints,其中两个具有row.setVgrow(Priority.ALWAYS)但这只允许平均共享剩余空间 我尝试使用百分比,正如我在文档中看到的那样,如果widthPercent(或heightPercent)值的总和大于100,那么这些值将被视为权重。e、 g.如果3列的宽度百分比均为50,则每
RowConstraints
,其中两个具有row.setVgrow(Priority.ALWAYS)
但这只允许平均共享剩余空间
我尝试使用百分比,正如我在文档中看到的那样,如果widthPercent(或heightPercent)值的总和大于100,那么这些值将被视为权重。e、 g.如果3列的宽度百分比均为50,则每个列将分配网格窗格可用宽度的1/3(50/(50+50+50))。
问题是,当我尝试这样做时,我丢失了部分应用程序
我认为这也是由于文档中说应用程序可以自由混合行/列的大小类型(根据内容、固定或百分比计算)。百分比行/列将始终首先根据其在网格窗格可用空间中的百分比(大小减去插入和间隙)分配空间。根据行/列的最小、首选和最大大小以及增长优先级,剩余空间将分配给行/列。
JavaFx-MCVE
package sample;
import javafx.application.Application;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.layout.Background;
import javafx.scene.layout.BackgroundFill;
import javafx.scene.layout.ColumnConstraints;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.Priority;
import javafx.scene.layout.RowConstraints;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
public class Main extends Application {
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage primaryStage) {
GridPane root = new GridPane();
root.setGridLinesVisible(true);
ColumnConstraints columnOneConstraints = new ColumnConstraints();
columnOneConstraints.setHgrow(Priority.ALWAYS);
root.getColumnConstraints().addAll(columnOneConstraints);
RowConstraints rowOneConstraints = new RowConstraints();
RowConstraints rowTwoConstraints = new RowConstraints();
rowTwoConstraints.setVgrow(Priority.ALWAYS);
rowTwoConstraints.setPercentHeight(2000);
RowConstraints rowThreeConstraints = new RowConstraints();
RowConstraints rowFourConstraints = new RowConstraints();
rowFourConstraints.setVgrow(Priority.ALWAYS);
rowFourConstraints.setPercentHeight(1000);
RowConstraints rowFiveConstraints = new RowConstraints();
root.getRowConstraints().addAll(
rowOneConstraints,
rowTwoConstraints,
rowThreeConstraints,
rowFourConstraints,
rowFiveConstraints
);
Background red = new Background(new BackgroundFill(Color.RED, null, null));
Background blue = new Background(new BackgroundFill(Color.BLUE, null, null));
Label rowOne = new Label("R1: Unknown Fixed Size");
rowOne.backgroundProperty().set(red);
rowOne.setMaxWidth(Double.MAX_VALUE);
rowOne.setAlignment(Pos.CENTER);
rowOne.setTextFill(Color.WHITE);
rowOne.setMaxHeight(Double.MAX_VALUE);
root.add(rowOne, 0, 0, 1, 1);
Label rowTwo = new Label("R2: Grow 2 parts of the remaining space");
rowTwo.backgroundProperty().set(blue);
rowTwo.setTextFill(Color.WHITE);
rowTwo.setAlignment(Pos.CENTER);
rowTwo.setMaxWidth(Double.MAX_VALUE);
rowTwo.setMaxHeight(Double.MAX_VALUE);
root.add(rowTwo, 0, 1, 1, 1);
Label rowThree = new Label("R3: Unknown Fixed Size");
rowThree.backgroundProperty().set(red);
rowThree.setTextFill(Color.WHITE);
rowThree.setAlignment(Pos.CENTER);
rowThree.setMaxWidth(Double.MAX_VALUE);
rowThree.setMaxHeight(Double.MAX_VALUE);
root.add(rowThree, 0, 2, 1, 1);
Label rowFour = new Label("R4: Grow 1 part of the remaining space");
rowFour.backgroundProperty().set(blue);
rowFour.setTextFill(Color.WHITE);
rowFour.setAlignment(Pos.CENTER);
rowFour.setMaxWidth(Double.MAX_VALUE);
rowFour.setMaxHeight(Double.MAX_VALUE);
root.add(rowFour, 0, 3, 1, 1);
Label rowFive = new Label("R5: Unknown Fixed Size");
rowFive.backgroundProperty().set(red);
rowFive.setTextFill(Color.WHITE);
rowFive.setAlignment(Pos.CENTER);
rowFive.setMaxWidth(Double.MAX_VALUE);
rowFive.setMaxHeight(Double.MAX_VALUE);
root.add(rowFive, 0, 4, 1, 1);
primaryStage.setScene(new Scene(root));
primaryStage.sizeToScene();
primaryStage.show();
primaryStage.setMinHeight(primaryStage.getHeight());
primaryStage.setMinWidth(primaryStage.getWidth());
}
}
我想要的东西可以通过Swing的GridBagLayout生成,但显然这不能用于GridPane
package sample;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingConstants;
import javax.swing.WindowConstants;
import java.awt.Color;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
public class Main {
public static void main(String[] args) {
JFrame frame = new JFrame();
JPanel panel = new JPanel(new GridBagLayout());
GridBagConstraints constraints = new GridBagConstraints();
constraints.fill = GridBagConstraints.BOTH;
constraints.weightx = 1;
JLabel rowOne = new JLabel("R1: Unknown Fixed Size", SwingConstants.CENTER);
rowOne.setBackground(Color.RED);
rowOne.setForeground(Color.WHITE);
rowOne.setOpaque(true);
constraints.gridy = 0;
constraints.weighty = 0;
panel.add(rowOne, constraints);
JLabel rowTwo = new JLabel("R2: Grow 2 parts of remaining space", SwingConstants.CENTER);
rowTwo.setBackground(Color.BLUE);
rowTwo.setForeground(Color.WHITE);
rowTwo.setOpaque(true);
constraints.gridy = 1;
constraints.weighty = 2;
panel.add(rowTwo, constraints);
JLabel rowThree = new JLabel("R3: Unknown Fixed Size", SwingConstants.CENTER);
rowThree.setBackground(Color.RED);
rowThree.setForeground(Color.WHITE);
rowThree.setOpaque(true);
constraints.gridy = 2;
constraints.weighty = 0;
panel.add(rowThree, constraints);
JLabel rowFour = new JLabel("R4: Grow 1 part of the remaining space", SwingConstants.CENTER);
rowFour.setBackground(Color.BLUE);
rowFour.setForeground(Color.WHITE);
rowFour.setOpaque(true);
constraints.gridy = 3;
constraints.weighty = 1;
panel.add(rowFour, constraints);
JLabel rowFive = new JLabel("R5: Unknown Fixed Size", SwingConstants.CENTER);
rowFive.setBackground(Color.RED);
rowFive.setForeground(Color.WHITE);
rowFive.setOpaque(true);
constraints.gridy = 4;
constraints.weighty = 0;
panel.add(rowFive, constraints);
frame.getContentPane().add(panel);
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
frame.pack();
frame.setMinimumSize(frame.getSize());
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
}
据我所知,仅使用默认的JavaFX
GridPane
无法实现您的示例所显示的功能。本论坛专业人士的标准答案是:创建自己的定制(类似网格的)布局-P
如果您想使用JavaFX提供的默认选项,可以结合使用e。g<代码>边框窗格和网格窗格
。这并不完全是你的例子所显示的,但也许它接近它。你需要决定它是否足够满足你的需要
下面是一个例子:
当第一行和最后一行应该具有固定的高度值时,可以使用边框窗格
作为根。对于中心,可以有一个网格窗格
,其中有两行具有基于百分比的值。第二行可以包含e。G还有一个边框窗格
(顶部节点的固定高度)等等
FXML:
如果您能够使用第三方库,在我的情况下,我是一个很好的选择 它使实现我想要的布局变得简单,并且还支持FXML
package sample;
import javafx.application.Application;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.layout.Background;
import javafx.scene.layout.BackgroundFill;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
import org.tbee.javafx.scene.layout.MigPane;
public class Main extends Application {
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage primaryStage) {
MigPane root = new MigPane(
"fill, debug, wrap, gap 0, insets 0",
"[fill, grow]",
"[fill][fill, grow 2][fill][fill, grow 1][fill]"
);
Background red = new Background(new BackgroundFill(Color.RED, null, null));
Background blue = new Background(new BackgroundFill(Color.BLUE, null, null));
Label rowOne = new Label("R1: Unknown Fixed Size");
rowOne.backgroundProperty().set(red);
rowOne.setAlignment(Pos.CENTER);
rowOne.setTextFill(Color.WHITE);
root.add(rowOne);
Label rowTwo = new Label("R2: Grow 2 parts of the remaining space");
rowTwo.backgroundProperty().set(blue);
rowTwo.setTextFill(Color.WHITE);
rowTwo.setAlignment(Pos.CENTER);
root.add(rowTwo);
Label rowThree = new Label("R3: Unknown Fixed Size");
rowThree.backgroundProperty().set(red);
rowThree.setTextFill(Color.WHITE);
rowThree.setAlignment(Pos.CENTER);
root.add(rowThree);
Label rowFour = new Label("R4: Grow 1 part of the remaining space");
rowFour.backgroundProperty().set(blue);
rowFour.setTextFill(Color.WHITE);
rowFour.setAlignment(Pos.CENTER);
root.add(rowFour);
Label rowFive = new Label("R5: Unknown Fixed Size");
rowFive.backgroundProperty().set(red);
rowFive.setTextFill(Color.WHITE);
rowFive.setAlignment(Pos.CENTER);
root.add(rowFive);
primaryStage.setScene(new Scene(root));
primaryStage.sizeToScene();
primaryStage.show();
primaryStage.setMinHeight(primaryStage.getHeight());
primaryStage.setMinWidth(primaryStage.getWidth());
}
}
没有尝试,但会遵循您的假设。您可以尝试一种与gridPane(extend或c&p)基本相同的自定义布局,顺序相反:将relatve size的空间计算移到末尾。@kleopatra感谢您的建议。威尔:谢谢你的回答。我可能会尝试修改layoutScratch,我刚刚发现JavaFX lol支持MigLayout。我将改为使用它,但感谢您的帮助
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.Label?>
<?import org.tbee.javafx.scene.layout.fxml.MigPane?>
<MigPane layout="fill, gap 10 10, debug, wrap"
cols="fill, grow"
rows="[][grow 2][][grow 1][]">
<Label text="Row One"
alignment="CENTER" />
<Label text="Row Two"
alignment="CENTER" />
<Label text="Row Three"
alignment="CENTER" />
<Label text="Row Four"
alignment="CENTER" />
<Label text="Row Five"
alignment="CENTER" />
</MigPane>