layout-manager

Is there any way to force GridLayout to leave empty cells?

由 …衆ロ難τιáo~ 提交于 2019-12-04 03:37:57
I have a JTabbedPane with 2 JPanels set to GridLayout(13, 11). The first JPanel has enough of the cells filled out that it leaves the empty cells. The second JPanel has significantly fewer cells filled and this results in each button getting stretched to fill an entire row. Is there any way to get GridLayout to honor the empty cells, so the buttons in both JPanels are the same size? Paul Samsotha Use nested layouts to get your desired result. Some layouts respect the preferred size of components and some don't. GridLayout is one of the ones that don't. Have a look at this answer to see which

Understanding GridBagLayout constraints

由 喜欢而已 提交于 2019-12-03 21:23:01
I am relatively new to swing and I am trying to figure out exactly how it works. Tell me if I am wrong. I have mostly figured out gridx and gridy which is necessary to place a component. You need at least n values of (gridx,gridy) to create an nxn grid. For example (5,5),(3,3),(4,9),(3,10) will create a 3x4 gridspace(4 rows, 3 columns) with the components using the above (gridx,gridy) respectively placed in cells (3,2),(1,2),(2,3),(1,4). weightx and weighty seems to have 2 functions, a >0 value of weightx and weighy stretches the grid cells to the edges(otherwise it's centralised) and we can

Choosing the layout managers and number of panels for Java GUI

由 我的未来我决定 提交于 2019-12-03 18:04:55
问题 I would appreciate, If anyone here is kind enough to recommend me what are the layout managers to choose and how to separate the attached GUI into Jpanels. Thanks so much in advance. What I have tried so far: Jframe - BorderLayout Map (the grid and clear button from another class extending jpanel) - so I have put it in jframe.CENTER the buttons to the right: jframe.EAST I put them in a jpanel in a gridlayout (but I cannot get the spacing between the components) buttons at the bottom: jframe

How to align JLabel to the left of the JPanel?

由 ぃ、小莉子 提交于 2019-12-03 12:53:52
I want to align my JLabel to the left. String lText = "<html><b><font color = white face = comic sans ms size = 20>mybook</font></b></html>"; JLabel label = new JLabel(lText); label.setBorder(new EmptyBorder(25,0,25,500)); I tried to do it using EmptyBorder but it isnt aligning properly. I am using FlowLayout FlowLayout uses CENTER alignment by default. Try using LEFT alignment for your JLabel JPanel container myJPanel.setLayout(new FlowLayout(FlowLayout.LEFT)); You might wish to set the JLabel's horizontalAlignment property. One way is via its constructor. Try: JLabel label = new JLabel(lText

How to make JLabels start on the next line

由 筅森魡賤 提交于 2019-12-03 11:53:18
JPanel pMeasure = new JPanel(); .... JLabel economy = new JLabel("Economy"); JLabel regularity = new JLabel("Regularity"); pMeasure.add(economy); pMeasure.add(regularity); ... When I run the code above I get this output: Economy Regularity How can I get this output, where each JLabel starts on a new line? Thanks Economy Regularity John Kugelman supports Monica You'll want to play around with layout managers to control the positioning and sizing of the controls in your JPanel . Layout managers are responsible for placing controls, determining where they go, how big they are, how much space is

Android StaggeredGridLayoutManager offset bug

由 这一生的挚爱 提交于 2019-12-03 07:48:52
When you clear your adapter and call notifyDataSetChanged() - StaggedGridLayoutManager manager still has mCachedStart/End in Span[] instances. So when you add new items to adapter - layout manager draws items with offset , and this is a huge problem . EtsyStaggeredGridView has method resetToTop() which clears all cached stuff and draws everything from scratch. There are some workarounds: Call layoutManager.onDetachedFromWindow(recyclerView, null) after clearing an adapter Set new layout manager which is bad There are some workarounds: Call layoutManager.onDetachedFromWindow(recyclerView, null)

How to position the form in the center screen?

由 懵懂的女人 提交于 2019-12-03 01:28:40
问题 I'm a .Net developer but somehow I was task to create a simple application in java for some extra reason. I was able to create that application but my problem is how can i center the form in the screen when the application is launched? Here is my code: private void formWindowActivated(java.awt.event.WindowEvent evt) { // Get the size of the screen Dimension dim = Toolkit.getDefaultToolkit().getScreenSize(); // Determine the new location of the window int w = this.getSize().width; int h = this

How to set size for custom-made panel that will work with gridbaglayout?

由 拜拜、爱过 提交于 2019-12-02 20:01:11
问题 this is my problem, I hope you will help me somehow. I have one class that extends JPanel , and that class is creating a rectangle with a paintComponent method. When I add that class to JPanel who has gridBagLayout ,first is not appearing. But, when I set Dimension.getPreferredSize() in that class, I can see the rectangle...and the problem is when I call MouseListener and see that rectangle is only moving in little square in the frame. So I think that somehow that method getPreferredSize() is

Positioning buttons below menu bar with GridBagLayout

由 ⅰ亾dé卋堺 提交于 2019-12-02 18:22:25
问题 I want to add my two buttons just below to the JMenuBar . I am using a root JPanel for the entire window of the GUI, and I am adding to it different components, so far, two, the menu bar and a panel that contains two buttons. But I don't know how to place the GridBagConstraints for the panel that contains the buttons in a way that it places just below the menu bar. This is my code: JFrame f = new JFrame("Cliente AEMET"); JPanel panel_raiz = new JPanel();//root JPanel GridBagConstraints gbc =

How to set size for custom-made panel that will work with gridbaglayout?

由 旧城冷巷雨未停 提交于 2019-12-02 13:16:11
this is my problem, I hope you will help me somehow. I have one class that extends JPanel , and that class is creating a rectangle with a paintComponent method. When I add that class to JPanel who has gridBagLayout ,first is not appearing. But, when I set Dimension.getPreferredSize() in that class, I can see the rectangle...and the problem is when I call MouseListener and see that rectangle is only moving in little square in the frame. So I think that somehow that method getPreferredSize() is controlling the place where will rectangle move and be. Here is pic of my problem: move3 limitet
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