layout-manager

How do I make this FlowLayout wrap within its JSplitPane?

℡╲_俬逩灬. 提交于 2019-12-01 11:59:17
I wrote this code sample to illustrate a problem I'm having with my program. I expect to be able to slide the JSplitPane's slider bar to the left, beyond the edge of the buttons, compressing that JPanel, and have the FlowLayout wrap the buttons to a second row. Instead, the JSplitPane does not allow me to move the slider past the rightmost button on the screen, and if I resize the entire JFrame to force the compression, the buttons (I presume) are just running off the righthand side of the JPanel, underneath the slider bar (I guess, because I obviously cannot see them). What am I doing wrong?

What layout manager will do this?

旧街凉风 提交于 2019-12-01 11:30:57
问题 OY, not enough rep points to post an image... ____________________________________________________ |joes pizza | | pizza type toppings ----------- | | | | | | cheese mushrooms | 15.00 | | | veggie extra cheese | | | | pepperoni bacon | | | | ---------- | | _______________________________________________ | | | calculate total | | | ------------------------------------------------ | |___________________________________________________| I'm supposed to build this for class, where the options in

Alternative to absolute layout?

半腔热情 提交于 2019-12-01 11:20:17
Is there a layout manager that gives the same degree of control as Absolute Positioning ? But also makes auto resizing possible? Something where you could place elements using relative coordinates? Marko Topolnik GridBagLayout is the most flexible standard layout manager in Swing and it can achieve practically anything you need, although nowhere near as simply as how you imagine by just using relative coordinates (what you mean, I guess, is 0-100% relative to the frame size). You may find the official documentation for GridBagLayout here , which also has some figures and examples. You can also

Put a JTextfield on a JPanel?

試著忘記壹切 提交于 2019-12-01 11:18:45
问题 Why the textfield is not appearing on my panel which is inside my frame? I mean is there some additional action necessary to make the components of the panel visible? I hope somebody can help me.... public class example1 { public static void main(String[] args) { JFrame tt=new TT(); } } class TT extends JFrame { JTextField textField; JPanel panel; JButton button1; JButton button2; public TT() { setSize(300, 300); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setLocationRelativeTo(null);

Stack swing elements from top to bottom

a 夏天 提交于 2019-12-01 09:47:11
Consider the following figure: I need to develop a swing GUI the looks like this. I simply named them jLabel's but there a few images and jLabels in it. The default awt background visible is a JPanel and each red background visible is a serperate JPanel. Now I need them to get stacked as shown above. I tried a number of LayoutManagers and still it doesn't work. The important point here is that the number of red colored divs are not constant. If there is only one red colored div then it must be displayed at the top, not at the center. As far as i know GridBagLayout should work, but it centers

Column-oriented Layout for Component in JScrollPane

為{幸葍}努か 提交于 2019-12-01 09:41:38
问题 I'm working on my first Swing application and I'm having a layout problem concerning a dialog window I created for my users to enter values in certain fields. Because the number of fields displayed varies based on a user choice, I use a JScrollPane in my dialog, setting its viewport to a panel to which I add my field components. For every field to be displayed, I create and add three components: "field name" label Field component (usually a JTextField, but it also could be a JComboBox or a

CardLayout, switch between JPanels by ButtonClick

送分小仙女□ 提交于 2019-12-01 09:28:41
I want to switch between JPanels by clicking buttons on the JPanels. For example: I have a JPanel sim with a JButton simknop and a JPanel help with JButton helpknop I want to switch between these 2 JPanels by clicking the buttons. When I click JButton simknop JPanel help should appear and when I click JButton help JPanel sim should appear. Below you can find the different classes: main.java public class main extends JFrame { JPanel cards; sim sim; help help; public main() { this.setSize(1024,768); //this.setLayout(new BoxLayout(this, BoxLayout.Y_AXIS)); this.setDefaultCloseOperation(JFrame

How to Integrate Multi-page Java Desktop Application from Multiple GUI Classes

强颜欢笑 提交于 2019-12-01 07:25:18
问题 I am working on a Java Swing desktop application project. The application has about 15 GUI pages. I can use Layered Panes and Tabbed Panes to put all the GUI components in one class. But that class will be huge. It would be idea if I can divide the project into several smaller sub-projects and let each have one or a few GUI pages. I can work on each sub-project individually and integrate them back into one application when all sub-projects are finished. My question is that how I can integrate

How do I center a JTextfield

孤人 提交于 2019-12-01 06:29:38
I'm having trouble centering a JTexfield in my program.The Textfield does not appear aligned with the JButton. I've tried using the x.setHoriontalAlignment(JTextfield.CENTER); but to no avail. Any ideas? import java.awt.Color; import java.awt.Dimension; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.BoxLayout; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JTextField; import javax.swing.JPanel; import java.awt.Container; import java.awt.GridLayout; import java.awt.GridBagLayout; public class WidgetProject implements

java which layout manager suitable for this task?

元气小坏坏 提交于 2019-12-01 05:09:21
问题 I have a JPanel parent with 3 JPanel children inside. They all currently make use of GridLayout and together represent a UML class. Problem is that when I add a new attribute or method, all 3 JPanel grow to the same size. Desire behaviour is that: The title box's size always remain the same whenever a method or attribute is added. When a method is added, only the method panel grows and title and attribute panel's size stay the same. When an attribute is added, only the attribute panel grows