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Java 获取多行flowlayout的首选大小_Java_Swing_Resize_Jgoodies_Flowlayout - Fatal编程技术网

Java 获取多行flowlayout的首选大小

Java 获取多行flowlayout的首选大小,java,swing,resize,jgoodies,flowlayout,Java,Swing,Resize,Jgoodies,Flowlayout,我想不出在swing GUI中调整某些组件大小的方法。某些自定义标签被添加到FlowLayout中,但在调整对话框大小时,它们的行为与FlowLayout不符。 该面板是使用jgoodies表单框架构建的 如果使用此选项,将FlowLayout添加到xy(3,y)的位置 FlowLayout将展开,并显示一个滚动条 如果使用 FormLayout layout = new FormLayout("r:d, 5px, f:10:g", // columns "p, p,

我想不出在swing GUI中调整某些组件大小的方法。某些自定义标签被添加到FlowLayout中,但在调整对话框大小时,它们的行为与FlowLayout不符。 该面板是使用jgoodies表单框架构建的

如果使用此选项,将FlowLayout添加到xy(3,y)的位置

FlowLayout将展开,并显示一个滚动条

如果使用

FormLayout layout = new FormLayout("r:d, 5px, f:10:g", // columns
            "p, p, 5px, p, 5px, p") // rows
FlowLayout使用可用空间,第二行上的项目消失

我想将包含FlowLayout的每一行的高度扩展到组件的当前高度。不幸的是,首选大小始终与单行的高度相对应。
另一种布局是否更合适?左侧的粗体文本应与右侧对齐,然后是FlowLayout

[编辑]在尝试了数周后,实际问题可以继续到以下位置:
正在向JPanel添加一组标签。此JPanel应水平使用所有可用空间(对话大小减去标记名称标签的宽度),并根据需要垂直扩展。如果JPanel的高度大于对话框,则应显示一个垂直滚动条(水平滚动条永远不可见)。 该对话框可以显示多个JPanel,这些JPanel将一个接一个(垂直)显示

下面是使用GridBagLayout和:

公共类GridBagLayoutTagPanel扩展了JPanel{
私有静态最终长serialVersionUID=-441746014057882848L;
私人最终int NB_标签=5;
公共网格布局TagPanel(){
setLayout(新的GridLayout());
JPanel pTags=newjpanel(newgridbaglayout());
pTags.挫折背景(颜色:橙色);
GridBagConstraints c=新的GridBagConstraints();
c、 ipadx=5;
c、 ipady=5;
int rowIndex=0;
对于(int i=0;i
我想将包含FlowLayout的每一行的高度扩展到组件的当前高度。不幸的是,首选大小始终对应于单行的高度


处理此问题。

您尝试过吗?这是我唯一使用的布局管理器,我从来没有发现过一个布局我做不到。

在Rob的帮助下,使用他的,它现在完全可以正常工作了

public class GridBagLayoutTagPanel extends JPanel {
  private final int NB_TAGS = 5;
  private final int NB_TAGVALUES = 50;

  public GridBagLayoutTagPanel() {
    setLayout(new GridLayout());

    ScrollablePanel pTags = new ScrollablePanel(new GridBagLayout());
    pTags.setScrollableWidth(ScrollablePanel.ScrollableSizeHint.FIT);
    pTags.setBackground(Color.ORANGE);
    GridBagConstraints c = new GridBagConstraints();
    c.ipadx = 5;
    c.ipady = 5;

    int rowIndex = 0;
    for (int i = 0; i < NB_TAGS; i++) {
      // add tag name
      JLabel lTagName = new JLabel(String.format("Tag %s:", i));
      lTagName.setFont(lTagName.getFont().deriveFont(Font.BOLD));
      c.fill = GridBagConstraints.NONE;
      c.gridx = 0;
      c.gridy = rowIndex++;
      c.weightx = 0; // keep minimum size of the cell containing the label when resizing
      c.weighty = 0;
      pTags.add(lTagName, c);

      // add tag values
      JPanel pTag = new JPanel(new BorderLayout());
      pTag.add(new JLabel("+"), BorderLayout.LINE_START); // label used to add new tags
      pTag.add(getWrapPanel(), BorderLayout.CENTER); // the list of tag values
      c.fill = GridBagConstraints.HORIZONTAL;
      c.gridx = 1;
      c.weightx = 1; // fill horizontally
      c.weighty = 1;
      pTags.add(pTag, c);
   }

   JScrollPane sp = new JScrollPane(pTags);
   sp.setBorder(BorderFactory.createEmptyBorder());

   add(sp);
  }

  private JPanel getWrapPanel() {
    JPanel p = new JPanel(new WrapLayout(FlowLayout.LEFT, 5, 0));

    for (int i = 0; i < NB_TAGVALUES; i++) {
      p.add(new JLabel("t" + i));
    }

    p.setSize(400, 1);
    return p;
  }

  public static void main(String[] args) {
    JFrame f = new JFrame();
    f.getContentPane().add(new GridBagLayoutTagPanel());
    f.setSize(new Dimension(500, 300));
    f.setVisible(true);
  }
}
公共类GridBagLayoutTagPanel扩展了JPanel{
私人最终int NB_标签=5;
私有最终整数NB_TAGVALUES=50;
公共网格布局TagPanel(){
setLayout(新的GridLayout());
ScrollablePanel pTags=新的ScrollablePanel(新的GridBagLayout());
pTags.setScrollableWidth(ScrollablePanel.ScrollableSizeHint.FIT);
pTags.挫折背景(颜色:橙色);
GridBagConstraints c=新的GridBagConstraints();
c、 ipadx=5;
c、 ipady=5;
int rowIndex=0;
对于(int i=0;i
您是否尝试过使用
FormDebugUtils
类和/或
FormDebugPanel
?这些调试工具几次帮助我了解了实际情况,为什么在代码明确指示使用了
FormLayout
时,您会声明
FlowLayout
<代码>表单布局=FlowLayout
@AndrewThompson表单布局不是问题所在。它的行为就像它被告知的那样(对于第二个示例),使用可用的水平空间,并根据添加到FormLayout的FlowLayout的首选高度拉伸垂直空间。问题是首选的高度永远不会改变。这似乎是exa
public class GridBagLayoutTagPanel extends JPanel {
private static final long serialVersionUID = -441746014057882848L;
private final int NB_TAGS = 5;

public GridBagLayoutTagPanel() {
    setLayout(new GridLayout());

    JPanel pTags = new JPanel(new GridBagLayout());
    pTags.setBackground(Color.ORANGE);
    GridBagConstraints c = new GridBagConstraints();
    c.ipadx = 5;
    c.ipady = 5;

    int rowIndex = 0;
    for (int i = 0; i < NB_TAGS; i++) {
        //add tag name
        JLabel lTagName = new JLabel(String.format("Tag %s:", i));
        lTagName.setFont(lTagName.getFont().deriveFont(Font.BOLD));
        c.fill = GridBagConstraints.NONE;
        c.gridx = 0;
        c.gridy = rowIndex++;
        pTags.add(lTagName, c);

        //add tag values
        JPanel pTag = new JPanel(new BorderLayout());
        pTag.add(new JLabel("+"), BorderLayout.LINE_START); //label used to add new tags
        pTag.add(getWrapPanel(), BorderLayout.CENTER); //the list of tag values
        c.fill = GridBagConstraints.HORIZONTAL;
        c.gridx = 1;
        pTags.add(pTag, c);
    }

    //JScrollPane sp = new JScrollPane(pTags);
    //sp.setBorder(BorderFactory.createEmptyBorder());

    add(pTags);
    }

private static JPanel getWrapPanel() {
   JPanel p = new JPanel(new WrapLayout(FlowLayout.LEFT, 5, 0));

   for (int i = 0; i < 50; i++) {
           p.add(new JLabel("t" + i));
   }
   return p;
}

public static void main(String[] args) {
    JFrame f = new JFrame();
    f.getContentPane().add(new GridBagLayoutTagPanel());
    f.setSize(new Dimension(500, 300));
    f.setVisible(true);
}
}
public class GridBagLayoutTagPanel extends JPanel {
  private final int NB_TAGS = 5;
  private final int NB_TAGVALUES = 50;

  public GridBagLayoutTagPanel() {
    setLayout(new GridLayout());

    ScrollablePanel pTags = new ScrollablePanel(new GridBagLayout());
    pTags.setScrollableWidth(ScrollablePanel.ScrollableSizeHint.FIT);
    pTags.setBackground(Color.ORANGE);
    GridBagConstraints c = new GridBagConstraints();
    c.ipadx = 5;
    c.ipady = 5;

    int rowIndex = 0;
    for (int i = 0; i < NB_TAGS; i++) {
      // add tag name
      JLabel lTagName = new JLabel(String.format("Tag %s:", i));
      lTagName.setFont(lTagName.getFont().deriveFont(Font.BOLD));
      c.fill = GridBagConstraints.NONE;
      c.gridx = 0;
      c.gridy = rowIndex++;
      c.weightx = 0; // keep minimum size of the cell containing the label when resizing
      c.weighty = 0;
      pTags.add(lTagName, c);

      // add tag values
      JPanel pTag = new JPanel(new BorderLayout());
      pTag.add(new JLabel("+"), BorderLayout.LINE_START); // label used to add new tags
      pTag.add(getWrapPanel(), BorderLayout.CENTER); // the list of tag values
      c.fill = GridBagConstraints.HORIZONTAL;
      c.gridx = 1;
      c.weightx = 1; // fill horizontally
      c.weighty = 1;
      pTags.add(pTag, c);
   }

   JScrollPane sp = new JScrollPane(pTags);
   sp.setBorder(BorderFactory.createEmptyBorder());

   add(sp);
  }

  private JPanel getWrapPanel() {
    JPanel p = new JPanel(new WrapLayout(FlowLayout.LEFT, 5, 0));

    for (int i = 0; i < NB_TAGVALUES; i++) {
      p.add(new JLabel("t" + i));
    }

    p.setSize(400, 1);
    return p;
  }

  public static void main(String[] args) {
    JFrame f = new JFrame();
    f.getContentPane().add(new GridBagLayoutTagPanel());
    f.setSize(new Dimension(500, 300));
    f.setVisible(true);
  }
}