Java GridBagLayout example with examples on all layout managers such as BorderLayout, GridLayout, FlowLayout, BoxLayout, CardLayout, GridBagLayout, GroupLayout, SpringLayout, ScrollPaneLayout etc. Computer Network tutorial. Creating a GUI with JFC/Swing. Lesson: How to Use GridBagLayout: The Example Explained. Here, again, is the applet that shows a GridBagLayout in action. As the above applet shows, a GridBagLayout places components in a grid of You can find more examples of using GridBagLayout throughout this tutorial.
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It is a fairly complex user interface screen with a number of different controls, and with different component regions. Our GridBagLayout has gridX and gridY constraints which can be associated with the components we have sketched in our grid. If we think about it for a while, we can see that not all regions fit into a grid cell, some regions spread into two cells marked in blue:. We can make the GridBagLayout make these two blue regions cover more than one cell using the gridWidth and gridHeight constraint.
The following code sets up the main components in the frame using GridBagLayout.
Designing a Basic Java Form Using the GridBag Customizer – NetBeans IDE Tutorial
Notice how one GridBagConstraint object is being created and being passed in with the component to the main panel? This constraint object holds all the information on how a component should be displayed. In our first cut, we are only interested in the X and Y placement, and spans, so we set gridX and gridY on all the first level components we are adding.
For our button panel at the bottom we set the gridWidth to 2, indicating that we want it to spread to the right gridbaglyaout one more grid cell, and likewise with the details panel we want it to spill over into two cells.
SWING GridBagLayout Class
It is important to reset any constraint values such as gridWidth because we are dealing with only one constraints object. The two rows of buttons are looking good. Per default JPanels have a FlowLayout, laying out components from left to right in a centered tutotial. This looks good for what our requirements are.
Of course our label at the top needs to be left aligned, and our table would be good if gridbaglatout had some data in it. Lets move on to our details panel on the right. This panel will also use a GridBagLayout, so we will effectively have two nested GridBagLayouts in our application frame. In this first cut lets just concern ourselves with gridX and gridY constraints:.
A useful technique is to use variables for X and Y coordinates. This makes it extremely easy to add extra fields at a later point in time. All the components are in their correct X and Y positions but the width has to be fixed. The checkbox at the bottom is in its own separate column, so we need to stretch the text fields over to the right.
We do this by setting the gridWidth property to two for those fields that we want to stretch over. Now if we run it, it still looks terrible, but at least we see that we have three columns with most of the text fields sitting over the last two columns. The columns dimension in our text area will be overridden by our GridBagLayout, however tutkrial rows value of 2 will not.
We can put this alongside the insets to affect all components because our anchor does not affect our text field components, only our labels, since they have no FILL set. Our table should also stretch out in both directions, effectively swallowing up any space that may be available.
Weight X and weight Y should be set to 1. Refactor out the ScrollPane and give it a preferred size. This gives you a bit of control over the fill of the table and scrollpane. If you find some of the text fields on yutorial right are collapsing, add some column width via the integer parameter when constructing text fields:. Hey This is really good but for some reason my createDetailsPanel does not show my textfields, labels when i run my program I dont know why.
Do you know what I need to do to ggidbaglayout it to show and can you please put comments on your code so I know what it is used for.
Thank you for your great tutorial, i read it tree times and each time i find something new. Thanks a lot for the example. I was trying out a same screen.
SWING – GridBagLayout Class
I would like to know how can I bring the window in the middle of the screen. Could you please help me with this. Man, you did a great job on this tutorial. It was very helpful to me. With a sketch and a couple of print screens you was very simple and direct.
You inspiring me to write gutorial own books on this topic.
But I have found myself struggling with Extjs in recent times and questioning t [ I struggled for about half a day trying to get some sort of menu system in AngularJS working. Powered by Visitor Maps.
Grivbaglayout we think about it for a while, we can see that not all regions fit into a grid cell, some regions spread into two cells marked in blue: February 16, at 4: March 5, at 5: March 5, at 8: Good Job, exactly what I needed!
Thank you gridbaglayouh much! March 31, at 4: March 31, at 8: Never mind i realised that tutoriial didnot read the source code properly thanks. October 17, at 4: Where are you creating the method?
And there do you use it later? March 21, at 3: April 5, at Totally awesome tutorial, you really saved my ass here. April 11, at 2: May 16, at 2: It could not be better explained! Was very helpful, thank you.
GridBagLayout « Swing « Java Tutorial
June 7, at 3: June 18, at 3: Hi, Thanks a lot for the example. June 18, at 7: Hi Nimal, try this: July 3, at 7: Thanks a lot and, Congrats. July 5, at 5: July 21, at 9: November 29, at 9: December 12, at This is the best tutorial I have used yet!
December 13, bridbaglayout 9: December 30, at Leave a Reply Cancel reply Your email address will not be published. Area Charts in Iceberg Charts March 11th, It is now possible to create area charts in Iceberg Charts that look something like this: