gridbaglayout

问题 So basically if I put JPanel s inside a JPanel that uses GridBagLayout and I restrict the size with setPreferredSize , eventually it reaches a point where it can't hold all of them, and it exhibits the behavior shown in the attached picture: I'm making an accordion. This is just an example to showcase the problem I'm having. Each part of the accordion can open individually and they're of arbitrary size and get added on the fly. Its easy enough to get the heights of all the individual panels

问题 I have a little issue with the GridBag Layout Manager. I am trying to display 9 panels like this: To do so, I separated the Grid like this: For the panels 1 to 7 there is no problem, they show up just as I want. But the issue starts with the panels S8 and S9 . As you can see, the S8 and S9 takes up half the frame, but I can't make it display like this. The S8 ends at the start of S4 , and the S9 begins at the end of S4 , I cannot handle the half space. Only way I figured out is to put the S8

问题 I see that GridBagLayout positions it's children with center alignment within cells. How to align left or right? UPDATE Constructing code (I know I could reuse c ) // button panel JPanel button_panel = new JPanel(); button_panel.add(ok_button); button_panel.add(cancel_button); // placing controls to dialog GridBagConstraints c; GridBagLayout layout = new GridBagLayout(); setLayout(layout); c = new GridBagConstraints(); c.gridx = 0; c.gridy = 0; add(inputSource_label, c); c = new

问题 I was trying to achieve the end result required in Setting an arbitrary width in GridBagLayout. For easy reference, here it is: This is the current result: Button number and row is shown in the form 1,1 , followed by the number of columns (2) declared for this cell. As you can see, it starts with buttons 1,1 (3) and below it 1,2 (4) being the same width, while declaring different numbers of columns. Can anyone determine how to correct the code? The current code: import java.awt.*; import

问题 Basically, how do I generate this? I'm pretty sure this is a job for GridBagLayout , but I'm unable to wrap my head around how to properly size the 'Action Pane' versus the 'Menubar'. The red & black lines indicate the grid that I believe you are to use in this case (3x3), but I might be completely wrong and there could be a way to do it in a different configuration. I tried to mess around with the weightx , weighty , gridheight , gridwidth values in GridBagConstraints , but I can't achieve

问题 I have recently started Java and wondered if it was possible to make Animations whilst using GridBag Layout. Are these possible and how? Any tutorials, help and such would be greatly appreciated :) 回答1: In order to perform any kind of animation of this nature, you're going to need some kind of proxy layout manager. It needs to determine the current position of all the components, the position that the layout manager would like them to have and then move them into position. The following