gridbaglayout

问题 I would like to create a layout: 2 rows, 1 column. 1st row should occupy 70% height of the window and 2nd row 30% of the window. I achieve this by using weighty attribute of GridBagConstraints . However I have problem with the width of my component, because when I resize application window the component remain in the center, its width is constant and I get a white spaces in the left and right of the component (even if I set fill to BOTH ). This problem does not occur when I change the height

问题 I've have a JFrame contains some JPanels using a gridBagLayout (3 rows, one column). That's my code: Container main_container = getContentPane(); GridBagLayout layout = new GridBagLayout(); main_container.setLayout(layout); GridBagConstraints c = new GridBagConstraints(); StatoMagazzini jpanel_stato_magazzini = new StatoMagazzini(); c.gridx = 1; c.gridy = 2; c.fill = GridBagConstraints.BOTH; layout.setConstraints(jpanel_stato_magazzini, c); AcquistoLotto jpanel_acquisto = new AcquistoLotto(i,

问题 I am trying to achieve a layout similar to that of a carousel. It needs to have images added horizontally with a checkbox field in the second row. I have a panel within a jscrollpane and individual images are added to the panel as labels. Please see screen shot. screenshot When I scroll the pane , the first row containing the images stays well within the panel..but if you notice the second row of checkboxes , it scrolls out of the panel. Here is the code ... JLabel lab1=new JLabel(); for (int

问题 Is it possible to completely emulate the behavior of a GridLayout with the GridBagLayout manager? Basically, I have a 8x8 grid in which each cell should have the same width and height. The GridLayout automatically did this. But I want to add another row and column to the grid which size is not the same as the other ones. That row/column should take up all the remaining space that might be left over (because the available size couldn't be equally distributed into 8 cells). Is that even

问题 I want to layout my JPane like so: ------- | | | | | | ------- | | ------- This way, the top section is bigger/taller than the bottom section (the top section consists of another JPanel and uses the Graphics object to display an image, while the bottom section also consists of another JPanel but uses the Graphics object to draw some lines and text). I've heard that the best way to do this was using the GridBagLayout and GridBagConstraints. I'm trying to figure out the appropriate properties

问题 I am currently trying to create a group of toggle-buttons that are similar to the one's used in the formatter preferences of Eclipse: Currently I have attempted this in the following way: public class Exercise extends JFrame { private String[] buttonNames = {"A", "B", "C", "D", "E"}; Exercise() { final JPanel topPanel = new JPanel(); topPanel.setLayout(new GridBagLayout()); GridBagConstraints c = new GridBagConstraints(); int tabCount = 0; final ButtonGroup topButtonGroup = new ButtonGroup();

问题 I want to add a vertical JSeparator between two components using a GridBagLayout. The code I have is as follows: public MainWindowBody(){ setLayout(new GridBagLayout()); JPanel leftPanel = new InformationPanel(); JPanel rightPanel = new GameSelectionPanel(); JSeparator sep = new JSeparator(JSeparator.VERTICAL); GridBagConstraints gbc = new GridBagConstraints(); gbc.gridx = 0; gbc.gridy = 0; gbc.anchor = GridBagConstraints.NORTH; add(leftPanel,gbc); gbc.gridx = 1; gbc.gridy = 0; gbc.fill =

问题 So I have 6 panels, all of them used a grid layout. And I put them together using gridbaglayout, here is the design I wanted Turn out it became a total mess The "second" panel became much further away to the right The third panel is squeezed a lot to the left and it was a disaster. Here is my code for the gridbag layout c.gridx = 0; c.gridy = 0; add (first,c); c.gridx = 2; //so that the second panel starts from the center and is divided evenly with the first panel add(second,c); c.gridx = 0;

问题 Learing GridBagLayout, The issue here is, the name label and combox don't show up on the top of the panel, but I have set its anchor to NORTH. Why ? import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.GridLayout; import javax.swing.JComboBox; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.WindowConstants; public class Test2 { public Test2() { JFrame frame = new JFrame(); frame.setTitle("test"); frame

问题 I have some trouble understanding these two properties. How should I give weight to components? How are these numbers calculated? I have tried to read several articles on the web but I do not understand it. Thank you. 回答1: If the space within a Panel is greater than the preferredDimension of the components contained within, the weightx and weighty is used to distribute the extra space to the individual components. use values from 0.0 to 1.0 (think of this a percentage). weightx is horizontal