Using setBounds on JTextFields within JPanel
Hi folks,
I hope someone can help me with this.
Basically the heirarchy of my UI is as follows:
The top level JFrame has a borderlayout. The north contains a couple of JButtons and the center contains a JTabbedPane.
Each tab in the JTabbedPane is borderlayout, with the South having another JTabbedPane, and the Center having a JPanel containing other UI elements.
In one of these JPanels I want to show a schematic of a plant and on top if over textfields in different locations to current values for different sensors. lets call this JPanel schematicPanel
For schematicPanel I have set the layout to OverlayLayout. The bottom layer for the schematicPanel is a JLabel that is the actual schematic of the plant. The next layer of the schematicPanel is a JPanel that contains all the JTextFields. This JPanel is set to be transparent using setOpaque(false)
For the JPanel that contains the JTextFields I have not set a layout. What I want to do is use setBounds, or setLocation to place the JTextFields in the correct locations. Unfortunately those methods have no affect what so ever.
I have no idea what is wrong.
Thanks for any help that anyone can offer
Shabbir
PS. I tried place the JTextFields directly on the schematicPanel but using setAlignmentX and setAlignmentY does not work very well, and is very cumbersome. If there is a way to make it work I am open to suggestions. Thanks.
Firstly, in swing the default layout is BorderLayout.
So when you have not set any layouts the layout is Borderlayout.Now if you want the setBounds(),setLocation() etc methods to take effect for any component the Layout needs to be expicitely set to null.
ThereFore,set the Layout of the JPanel where you want to place JTextFields to null for eg panel.setLayout(null) and then see how the setBounds(),setLocation() etc methods take effect.
Got It!!!
PK
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