Java 可调整大小的Swing布局,带有根据可变尺寸排列的按钮
我想用JavaSwing做一个布局,它看起来像下图Java 可调整大小的Swing布局,带有根据可变尺寸排列的按钮,java,swing,layout-manager,Java,Swing,Layout Manager,我想用JavaSwing做一个布局,它看起来像下图 (来源:) 左边是一个JPanel,它是通过paintComponent()绘制的,在调整窗口大小时,图形会自动缩放。(问题不在于那个小组,那个小组已经完成了。) 现在我需要在前面提到的JPanel右侧添加一些按钮(在Photoshop中为绘图添加的黑框)。顶部和底部略带红色区域的高度(旁边应该只有空白)是沿着常量系数*getHeight()行计算的。在左侧的每个隔间旁边,应该有一组按钮,排列到相应隔间的中心(参见蓝线) 包含按钮的JPane
(来源:) 左边是一个JPanel,它是通过
paintComponent()
绘制的,在调整窗口大小时,图形会自动缩放。(问题不在于那个小组,那个小组已经完成了。)
现在我需要在前面提到的JPanel右侧添加一些按钮(在Photoshop中为绘图添加的黑框)。顶部和底部略带红色区域的高度(旁边应该只有空白)是沿着常量系数*getHeight()
行计算的。在左侧的每个隔间旁边,应该有一组按钮,排列到相应隔间的中心(参见蓝线)
包含按钮的JPanel知道常量_因子和隔室数,因此应该可以将此信息输入布局管理器
我最好使用哪个布局管理器来实现此布局?我已经阅读了所有不同的布局管理器,但我不太清楚哪一个或哪一个组合最适合这种情况。例如,通过使用不同的、非常简单的容器,只需15-20分钟:
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.GridLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.SwingUtilities;
public class ThinLineFrame {
private JFrame frame = new JFrame();
private JScrollPane scrollPane;
private JPanel panel = new JPanel();
private JPanel panelNorth = new JPanel();
private JPanel panelCenter = new JPanel();
private JPanel panelCenterCh1 = new JPanel();
private JPanel panelCenterCh2 = new JPanel();
private JPanel panelCenterCh3 = new JPanel();
private JPanel panelCenterCh4 = new JPanel();
private JPanel panelCenterCh5 = new JPanel();
private JPanel panelSouth = new JPanel();
public ThinLineFrame() {
panelNorth.setBackground(Color.red.darker());
panelNorth.setPreferredSize(new Dimension(80, 30));
//
panelCenter.setBackground(Color.darkGray);
panelCenter.setLayout(new GridLayout(5, 1, 2, 2));
//
panelCenterCh1.setLayout(new BorderLayout());
JButton panelCenterCh1Button = new JButton();
panelCenterCh1.add(panelCenterCh1Button, BorderLayout.CENTER);
//
JButton panelCenterCh2Button1 = new JButton();
JButton panelCenterCh2Button2 = new JButton();
panelCenterCh2.setLayout(new GridLayout(2, 1, 2, 2));
panelCenterCh2.add(panelCenterCh2Button1);
panelCenterCh2.add(panelCenterCh2Button2);
//
JButton panelCenterCh3Button1 = new JButton();
JButton panelCenterCh3Button2 = new JButton();
panelCenterCh3.setLayout(new GridLayout(2, 1, 2, 2));
panelCenterCh3.add(panelCenterCh3Button1);
panelCenterCh3.add(panelCenterCh3Button2);
//
JButton panelCenterCh4Button1 = new JButton();
JButton panelCenterCh4Button2 = new JButton();
panelCenterCh4.setLayout(new GridLayout(2, 1, 2, 2));
panelCenterCh4.add(panelCenterCh4Button1);
panelCenterCh4.add(panelCenterCh4Button2);
//
panelCenterCh5.setLayout(new BorderLayout());
JButton panelCenterCh5Button = new JButton();
panelCenterCh5.add(panelCenterCh5Button, BorderLayout.CENTER);
//
panelCenter.add(panelCenterCh1);
panelCenter.add(panelCenterCh2);
panelCenter.add(panelCenterCh3);
panelCenter.add(panelCenterCh4);
panelCenter.add(panelCenterCh5);
//
panelSouth.setBackground(Color.red.darker());
panelSouth.setPreferredSize(new Dimension(80, 30));
//
panel.setLayout(new BorderLayout(2, 2));
panel.add(panelNorth, BorderLayout.NORTH);
panel.add(panelCenter, BorderLayout.CENTER);
panel.add(panelSouth, BorderLayout.SOUTH);
//
scrollPane = new JScrollPane(panel);
frame.add(scrollPane, BorderLayout.CENTER);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setPreferredSize(new Dimension(80, 600));
frame.setLocation(100, 150);
frame.pack();
frame.setVisible(true);
}
public static void main(String args[]) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
ThinLineFrame dlg = new ThinLineFrame();
}
});
}
}
你应该试着看看布局。这是一个超级灵活的布局管理器,也非常简单 代码将类似于:
MigLayout layout = new MigLayout("flowy");
panel.setLayoutManager(layout);
panel.add(button1);
panel.adD(button2);
etc..
尝试将debug、
flowy
添加到构造函数中,以直观地了解正在进行的操作。GBC不带锚,只带简单的约束和首选大小
固定大小的居中按钮:
import java.awt.Container;
import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
public class MainWithFixSize {
public static void main(String[] argv) throws Exception {
JFrame frame = new JFrame();
Container container = frame.getContentPane();
GridBagLayout gbl = new GridBagLayout();
container.setLayout(gbl);
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridx = 1;
gbc.gridy = 1;
JButton component = new JButton();
component.setPreferredSize(new Dimension(25, 25));
gbl.setConstraints(component, gbc);
container.add(component);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setPreferredSize(new Dimension(40, 90));
frame.pack();
frame.setVisible(true);
}
private MainWithFixSize() {
}
}
+好的。我实际上也在写我的答案,但我对“你能@mKorbel做点什么吗?”感到恼火。谢谢。不过,我的主要问题仍未解决。1.我如何使按钮的大小固定,比如25x25,并且保持隔间大小不变?button.setSize(25,25)完全没有效果。2.例如,如何将红色区域的高度设置为
0.05*frame.getHeight()
?如果我在构造器中这样做,在调整窗口大小时,红色区域将不会被调整大小。同意,那么最简单的方法是使用Grigbagalout(用于childs JPanels)并检查此示例,了解如何使用约束在JPanel中真正坚持(f.e JButton)。锚=GridBagConstraints.CENTER;你是说在每个隔间旁边放一个单独的JPanel,然后把按钮放进去?我将如何继续使红色区域在高度上具有灵活性,但具有确定的比例(即整个面板高度的1/10?啊,好吧,忽略最后的评论,那是胡说八道。我现在正试图用GridBagLayout替换最外面的边框布局。但是它根本不起作用。有什么建议吗?我能告诉MigLayout将button1例如0.05倍于button2,以便在调整窗口大小时也保持此比率吗?是的您可以。您可以设置相对于其他组件位置的位置。我已经有一段时间没有接触到Swing代码了,但这绝对是可能的,而且非常简单。请查看MigLayout cheat以了解其确切细节