I'm attempting to use the UIManager in java to make all my pop up GUIs and error GUIs use the same colors. The issue is I can't seem to change the button color when using the windows style, as well I can't manage to change the GUIs title bar.
Code: Its rather simple, I'm calling UIManager.getLookAndFeelDefaults().put("Button.background", buttonColor) anda few other UI changes. Nothing major...
UIManager.getLookAndFeelDefaults().put("Button.background", buttonColor)
For the color of the buttons from JOptionPane dialogs I don't understand why it doesn't work. It should. Maybe a side effect. We don't see all your code.
Try this simple code, you should see only green buttons.
package swing.uimanager;
import java.awt.Color;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.UIDefaults;
import javax.swing.UIManager;
public class JFrameWithUIManger extends JFrame {
public static void main(String[] args) {
new JFrameWithUIManger();
}
public JFrameWithUIManger() {
final UIDefaults lookAndFeelDefaults = UIManager.getLookAndFeelDefaults();
lookAndFeelDefaults.put("Button.background", Color.GREEN);
add(new JButton("A button"));
pack();
setVisible(true);
JOptionPane.showMessageDialog(this, "hello I am a message dialog");
JOptionPane.showConfirmDialog(this, "hello I am a question dialog", "do you like me ?", JOptionPane.YES_NO_OPTION);
}
}
For the white background in the title, you have a color (white), so it seems to work. Maybe, a problem in a key-value.
Post it please if you want we understand better.
Edit
After seeing you code, I understood your problem. It's the look and feel used.
You don't use the default look and feel (metal).
Probably, you don't know but all the look and feels in Swing don't born equals.
In deed, some options and mix-options are supported by some look and feels but are not supported by other look and feels.
If you use the default look and feel, you should have less compatibility problem.
The best way to know if it correctly supported is to report to some official docs but it's true that a lot of information about it is dry, with errors, and not detailed
In the link you posted in your comment : http://nadeausoftware.com/articles/2008/11/all_ui_defaults_names_common_java_look_and_feels_windows_mac_os_x_and_linux#Button, the keys displayed in the tables don't mean that values are present or modifiable but that only the keys are present in the LAF.
Each LAF is responsible to take into consideration or not to the key and the possibility to change values associated to the keys.
I tried with the Windows LAF to set only the background color button, it doesn't work either. So, it doesn't seem to be a side effect but it looks like more a missing of support on this feature for the Windows LAF.
Anyway, you can interest to the Nimbus if you want an official, nice and more recent and more flexible look and feel than the classic metal look and feel.
Nimbus document
It's available since the Java SE 6 Update 10.
I agree with you, Metal is ugly. But why don't use nimbus instead of the windows LAF ? It's great. I tried your code which modifies some values of lAF with Nimbus, it seems working nicely. Maybe, you could have some minor modifications to adjust it but the basis should be nice.
If you are using JOptionPane,
You an change the title using this format to use your own title.
JOptionPane.showMessageDialog(null, "This is the message", "This is the title", JOptionPane.YES_NO_OPTION);
To set back ground color of dialog-
UIManager UI=new UIManager();
UI.put("OptionPane.background", Color.white);
UI.put("Panel.background", Color.white);
JOptionPane.showMessageDialog(null,"Text","SetColor",JOptionPane.YES_NO_OPTION);
For changing buttons in dialog or everything else, create your own JDialog and set the button characteristics which you want.
Related
Right now I set the LaF like this: UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); It works fine and gives the look and feel I want to have. Sadly at some point in my code, I have to set some icons manually, because the automatical setting of those doesn't work properly (sets wrong icon). I currently have:
if (node.getAllowsChildren()) {
setIcon(UIManager.getIcon("FileView.directoryIcon"));
}else {
setIcon(UIManager.getIcon("FileView.fileIcon"));
}
but it doesn't use the LaF icons and I have no idea, on how to find the icons that look like the LaF. So my question is, is there an easy way to get lets say the LaF folder icon?
Design I currently get:
And the design I want to have:
Try using the UIDefaults class to get the values:
UIDefaults defaults = UIManager.getLookAndFeelDefaults();
Icon icon = (Icon)defaults.get(...);
Check out UIManager Defaults. This Icons change when the LAF is changed.
I am working on an Java application, and I'm setting the LookAndFeel. Everything of the LAF I like except the default background color of the JButtons. What's the best way to set that (and other properties) after I set the look and feel? I don't want to have to create my own look and feel that extends it... would love to just be able to change it after the line I set the LAF...
Found it myself shortly afterwards.
UIManager.getDefaults().put("Button.background",new Color(0xFFFFFF));
Hey I'm new to netbeans and I noticed a lot of applications (from textbooks) have a default style/appearance to their controls (buttons etc) as shown below.
(source: iforce.co.nz)
.
the appearance when I'm creating a GUI is just the standard windows xp or 7 button style. Is there a way to change this to the style shown in the image above?
Here is the appearance I am currently getting:
(source: iforce.co.nz)
.
Thanks in advance.
Yes, you can give Swing a Windows like look and feel with the following code:
try{
UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
}
catch(Exception e){
System.out.println("UIManager Exception : "+e);
}
NetBeans will automatically choose a Look and Feel depending on your JDK and operating system. NB generated some code to set the L&F when you created the JFrame which made everything look like Windows components. If you want to change the L&F, look at the source for your JFrame and look for a collapsed bit of code that says something like "Look and feel setting code." If you expand it you can change it as you like, or even delete it, which will cause it to simply use the default L&F ("Metal"), which is the one in your picture. Bear in mind that you really shouldn't really just delete generated code, but I'm just trying to make a point here. If you're new to swing in general, I'd recommend writing some applications by hand, and they should just use the "Metal" L&F by default. This will allow you to get comfortable with working with swing. See here for more information.
See the nested layout example for code that offers a combo containing the available PLAFs, and allows the user to change the PLAF at run-time.
You can add Look and Feels. There are some free great looking ones which can be downloaded freely. If you only want Windows look and feel you can just add
try{
UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
}
catch(Exception e){
e.printStacktrace();
}
Hope this answers your question.
I'm fairly confident that I have done my research before coming to you for help, but it's possible I have overlooked something.
I'm writing a java UI using the Nimbus l-a-f. I wish to change the background colour of a JSpinner on state-change, ie, when either the up or down button is pressed the background colour of the textfield within the jspinner changes colour to signify that the value has been altered.
I am aware this is possible using OTHER lookandfeels but not as easy with Nimbus, eg:
((JSpinner.NumberEditor)jSpinner1.getEditor()).getTextField().setBackground(color.yellow);
I have also looked into actually changing the colour theme of the UI manager, but I only want to change the colour when an action occurs, not just overall by default.
here or here
Is this at all possible and where do I start?
Failing this, I was hoping to just change a button's colour:
jButton.setBackground(Color.yellow);
This is easy enough but since the default colour is a painted gradient, how do I change it back to that?
Really hope someone out there knows or can help.
Much appreciated in advance!
Yes, it is possible. See this example (i.e. SpinnerDemo4) from The Java Tutorials for more detail. And yes, I did set the LaF to Nimbus when testing the code therein.
I am able to display Japanese characters everywhere except for the title bar of the main window (JFrame) in Java. Is there a way to change the font of this title bar so it can display japanese characters? Thanks
I am using Windows XP. If this matters I am using the Java Substance look and feel too.
A window's title bar is managed by the system window manager, not by Swing. You don't say what OS/GUI you're using.
For Windows XP, open the Display control panel, select the "Appearance" tab, and click the "Advanced" button; you can change the title font there (although the fonts installed on your system may not have the glyphs you need).
Here's some code that checks whether the system default font supports the glyph that you want (I have no idea what the character is; it's a nice-looking glyph from the Katakana set):
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.SwingUtilities;
public class GlyphCheck
{
public static void main(String[] argv) throws Exception {
final String title = "Testing: \u30CD";
SwingUtilities.invokeAndWait(new Runnable() {
public void run() {
JFrame frame = new JFrame(title);
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
JLabel label = new JLabel(title);
label.setSize(200, 100);
frame.setContentPane(label);
frame.pack();
frame.setVisible(true);
}
});
}
}
JFrame.setDefaultLookAndFeelDecorated(true);
UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
UIManager.put( "InternalFrame.titleFont", Resources.jaDefault.deriveFont(16.0f) );
Try it ;)
In order to override the font of the Frame you need to tell the look and feel to take care of its appearance. This may or may not be desirable, but you'll be at the mercy of the system otherwise. Some look and feels have quite good window decorations, others not so. Substance's are okay. Tell the UIManager what font to use also.
// Do this before you display any JFrame.
UIManager.put( "Frame.font", new Font( "Japanese", 12, Font.PLAIN ) );
JFrame.setDefaultLookAndFeelDecorated( true );
JFrame frame = new JFrame( title );
This approach (should it work - not tested it sorry!) will mean you'll be able to distribute your program without telling users that they need to change their Windows settings, as per the other answer.
I'm not familiar with Java Substance, but I experienced this when working on a webapp. Basically the Japanese, Chinese and Korean characters would show in the content in the page, but not in the browser title bar.
This is due to the fact that the windowing system controls this title bar, not the browser. Based on kdgregory's comment, it sounds like this is a similar situation to yours.
For the windowing system to understand the characters and not show the unsupported 'box' you have to ensure the proper character sets are installed. For Windows XP, the following steps resolved the problem with the browser title bar:
On the Windows Start menu, open the Control Panel.
Click the Regional and Language Options icon, and then click the Languages tab.
In the Supplemental languages support box, check the box for Install files for East Asian languages.
Click Apply and OK.