Is there a way to stop WindowBuilder for Eclipse putting components (JButton, JComboBox etc.) inside brackets when adding them to design?
{
JScrollPane scrollPane = new JScrollPane();
contentPanel.add(scrollPane, BorderLayout.CENTER);
{
table = new JTable();
scrollPane.setViewportView(table);
}
}
In the preferences, Windowbuilder/Swing/Code Generation, set the Statement generation to Flat (which is the default):
Related
I am trying to add a navbar (just like bootstrap's) for a Spring application but am not getting the nav menu to appear on the web page!
Can anyone please tell me what's wrong here?
Below is my code:
private Panel viewContainer;
private HorizontalLayout navbar;
private Button btnHome;
private Button btnNested;
private Button createNavigationButton(String caption, final String viewName) {
Button button = new Button(caption);
button.addStyleName(ValoTheme.BUTTON_SMALL);
// If you didn't choose Java 8 when creating the project, convert this
// to an anonymous listener class
button.addClickListener(event -> getUI().getNavigator().navigateTo(
viewName));
return button;
}
#Override
protected void init(VaadinRequest request) {
final VerticalLayout root = new VerticalLayout();
root.setSizeFull();
navbar = new HorizontalLayout();
navbar.setWidth("100%");
navbar.setDefaultComponentAlignment(Alignment.MIDDLE_RIGHT);
root.addComponent(navbar);
final Label brand = new Label("Nested demo");
brand.addStyleName(ValoTheme.LABEL_H1);
brand.addStyleName(ValoTheme.LABEL_NO_MARGIN);
navbar.addComponent(brand);
navbar.setComponentAlignment(brand, Alignment.MIDDLE_LEFT);
navbar.setExpandRatio(brand, 1);
btnHome = new Button("Home", FontAwesome.HOME);
btnHome.addStyleName(ValoTheme.BUTTON_BORDERLESS);
navbar.addComponent(btnHome);
btnNested = new Button("nested", FontAwesome.COFFEE);
btnNested.addStyleName(ValoTheme.BUTTON_BORDERLESS);
navbar.addComponent(btnNested);
viewContainer = new Panel();
viewContainer.setSizeFull();
root.addComponent(viewContainer);
root.setExpandRatio(viewContainer, 1);
}
Any hint is much appreciated.
Thanks
Henri's comment is almost certainly the correct answer.
Judging by the init(VaadinRequest) code you're using a UI class.
Without setContent(some components with visible stuff in them);
you won't see anything.
'you won't see anything' happens a lot in Vaadin when you're attempting new things, or doing proof of concept stuff. IMHO it's always a good practice to start with really dumb UI stuff e.g. setContent(new Label("TODO - implement this content-xxx"));
Using browser dev-tools is also a great idea. A quick select-element should show you that the UI div is empty, and allow you to start diagnosing.
TL;DR :-
UI is a ComponentContainer, so you need to - either
setContent(myLayoutWithStuff);
or
getContent().addComponent(myStuff);
to show someStuff.
Quick question: Is it possible to set a mnemonic for a JavaFX Tab?
I can only seem to be able to set them for such controls as buttons, and menu items.
Okay, this is an interesting question! You are right, you can not set the mnemonic directly on a Tab. But you can add a component as a Tabs graphic that supports the mnemonic feature:
private class MTab extends Tab
{
public MTab(String pText)
{
super();
Button fakeLabel = new Button(pText);
fakeLabel.setMnemonicParsing(true);
fakeLabel.getStyleClass().clear();
setGraphic(fakeLabel);
fakeLabel.setOnAction(ev -> {
if (getTabPane() != null) {
getTabPane().getSelectionModel().select(this);
}
});
}
}
Using this tab:
TabPane tabs = new TabPane();
tabs.getTabs().add(new MTab("_this is a test"));
tabs.getTabs().add(new MTab("t_his is a test"));
tabs.getTabs().add(new MTab("th_is is a test"));
Will make your tabs switchable via shortcuts.
I have a JScrollPane that holds a JPanel. The layout on the JPanel is a GridBagLayout. On that JPanel, I add a number of custom components - each is a JPanel with 3 JLabels.
The first time in the program I lay all of this out, it works fine. When I invoke the code to add another custom component to the JPanel, the panel appears empty, but I can determine by examining the contents of the JPanel that my components are actually there. If I resize the JDialog in which this all sites, the JPanel will paint properly. It also works if I scroll the JScrollPane horizontally even a tiny bit.
I use the same method for the initial layout as I do when adding an item.
I've tried various combinations of repaint(), invalidate() and doLayout() but nothing seems to work all the time. I've run into this situation before and have never been able to fully solve it. Any suggestions?
Running under OpenJDK 7u25. Below is the code that lays out the scroll pane and panel.
private void displayRelatedBug(ArrayList<Bug> a_bugs) {
// sort the bugs by ID
ArrayList<Bug> l_sorted = new ArrayList<>(a_bugs);
Collections.sort(l_sorted);
pnlRelatedBugs.removeAll();
pnlRelatedBugs.setLayout(new GridBagLayout());
GridBagConstraints l_gbc = new GridBagConstraints();
l_gbc.gridx = 0;
l_gbc.gridy = 0;
l_gbc.gridwidth = 1;
l_gbc.gridheight = 1;
l_gbc.anchor = GridBagConstraints.NORTHWEST;
l_gbc.fill = GridBagConstraints.NONE;
l_gbc.insets = new Insets(3, 4, 0, 0);
for (Bug r : l_sorted) {
pnlRelatedBugs.add(new RelatedBugDisplay(r, this), l_gbc);
l_gbc.gridy++;
}
// add a filler at the bottom to push it up
l_gbc.weighty = 1.0;
pnlRelatedBugs.add(new MMPanel(), l_gbc);
// add a filler on the right to push them left
l_gbc.weighty = 0.0;
l_gbc.weightx = 1.0;
l_gbc.gridx++;
pnlRelatedBugs.add(new MMPanel(), l_gbc);
// try in vain to make it show up!!!
pnlRelatedBugs.invalidate();
pnlRelatedBugs.doLayout();
pnlRelatedBugs.repaint();
scrollerRelatedBugs.doLayout();
SwingUtilities.invokeLater(new Runnable() {
#Override
public void run() {
pnlRelatedBugs.repaint();
scrollerRelatedBugs.repaint();
// this seems to help if the scroll bar is showing
scrollerRelatedBugs.getHorizontalScrollBar().setValue(1);
scrollerRelatedBugs.getHorizontalScrollBar().setValue(0);
}
});
}
Whenever you add/remove components from a visible panel, the basic code is:
panel.remove(...);
panel.add(...);
panel.revalidate();
panel.repaint();
Without a proper SSCCE we can't really tell what your code is doing.
If you do add/remove/replace/others actions with components on showing container, you must to revalidate and repaint your container, to which you add components for proper displaying.
I want to create a customised title bar for my JFrame. I can remove the default title bar with
JFrame.setUndecorated(true)
Now i need to create a customised title bar for my JFrame with a close button?
Without having done that ever, I think I would go this way:
Indeed set the JFrame to undecorated
Extend JRootPane to add an additional field titleBar
Create a TitleBar component holding the title, the close button, etc...
Set a new LayoutManager on that JRootPane (have a look at JRootPane.RootLayout) and layout the components in the appropriate order (first the title bar, then below the menubar, then below the content pane)
Set an instance of that extends RootPane on your JFrame
There are maybe better ways.
I'm not quite sure of how you want to customize the close button, but maybe this can point you in the right direction: How can I customize the title bar on JFrame?
EDIT: Here's an updated working link to a forum about customizing his GUI and one user posted code on his creation of a simple GUI: Here
It looks like you can just modify his removeComponents method and create an addComponents method to fit your needs.
The Code According to the Above Link :
(Edited for Java 8)
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.logging.Level;
import java.util.logging.Logger;
class Testing {
public void buildGUI() throws UnsupportedLookAndFeelException {
JFrame.setDefaultLookAndFeelDecorated(true);
JFrame f = new JFrame();
f.setResizable(false);
removeMinMaxClose(f);
JPanel p = new JPanel(new GridBagLayout());
JButton btn = new JButton("Exit");
p.add(btn, new GridBagConstraints());
f.getContentPane().add(p);
f.setSize(400, 300);
f.setLocationRelativeTo(null);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setVisible(true);
btn.addActionListener((ActionEvent ae) -> {
System.exit(0);
});
}
public void removeMinMaxClose(Component comp) {
if (comp instanceof AbstractButton) {
comp.getParent().remove(comp);
}
if (comp instanceof Container) {
Component[] comps = ((Container) comp).getComponents();
for (int x = 0, y = comps.length; x < y; x++) {
removeMinMaxClose(comps[x]);
}
}
}
public static void main(String[] args) {
SwingUtilities.invokeLater(() -> {
try {
new Testing().buildGUI();
} catch (UnsupportedLookAndFeelException ex) {
Logger.getLogger(Testing.class.getName()).log(Level.SEVERE, null, ex);
}
});
}
}
may Work Fine but what if user also Want to set a L&F
such as nimbus
There are really three ways to approach this:
Set the frame to undecorated and implement everything, which includes control buttons, snapping, resizing and moving.
Get the root pane of the JFrame and directly edit that pane. You will need to add the control buttons and the snapping behaviour.
Use JNI to get the window's handle at the creation of a JFrame to get the control of it's attributes. This is better explained in this post. I have also built a little project which is basically an extension of the JFrame class that handles everything that needs to be dealt with... This last approach does not break native functions like snapping and resizing. But you do need to create the control buttons again since you have a new title bar if you want to build it from scratch.
I'm writing a Flex application using Flash Builder 4 and I'm having a bit of trouble with an AS3 object. Essentially, it is a BorderContainer, with a few buttons and images, and programming logic that determines how these interact with eachother and a database.
What I want to be able to do is configure the layout/style of the inner components using MXML and CSS. I can configure the inherited objects, but not ones that I have defined...
For example, in my MXML. I can modify the (inherited) borderstroke variable of myContainer like so;
<IE:MyContainer>
<IE:borderStroke>
<s:LinearGradientStroke weight="10" rotation="270">
<s:GradientEntry color="0xF655E5"/>
<s:GradientEntry color="0x6600CC"/>
</s:LinearGradientStroke>
</IE:borderStroke>
</IE:MyContainer>
However, I can't edit the nextButton variable (which is of type Button) like this;
<IE:MyContainer>
<IE:nextButton width="100" height="30" left="10%" bottom="10%"/>
</IE:MyContainer>
If I try, I get the compile error "Could not resolve to a component implementation".
What do I need to do to make this work?!
Thanks in advance,
Aidan
EDIT:
Here's the main method of MyContainer (actually named InvestigativeEnvironment).
The call to defineTestInvestigativeEnvironment() is what takes care of setting up the objects and action listeners and such. What I want to do is change the layout and appearance of these visual components in MXML (nextButton, prevButton, toolbox, displayArea). I want to be able to set their height, width, background, x, y, horizontalCenter, etc like I can to a button that I add to a container via MXML.
public class InvestigativeEnvironment extends BorderContainer
{
private var toolbox:Toolbox;
private var bodySystem:BodySystem;
public var nextButton:Button;
public var prevButton:Button;
private var displayArea:Group;
private var image:Image;
private var toolDisplayArea:Group;
public function InvestigativeEnvironment()
{
super();
//create 'Next' button and event listener
nextButton = new Button();
nextButton.addEventListener(MouseEvent.CLICK, nextViewAngle);
nextButton.label = "Next";
this.addElement(nextButton);
//create 'Prev' button and event listener
prevButton = new Button();
prevButton.addEventListener(MouseEvent.CLICK, prevViewAngle);
prevButton.label = "Prev";
this.addElement(prevButton);
//define investigative environment by creating models.
defineTestInvestigativeEnvironment();
//Instantiate the Group that contains the model image and tool overlays
displayArea=new Group();
//Instantiate the image that is used to display the model
image = new Image();
image.source=bodySystem.getImage();
image.horizontalCenter=0;
image.verticalCenter=0;
displayArea.addElement(image);
//add toolOverlayContainer to the display area ABOVE the model image
toolDisplayArea = new Group();
toolDisplayArea.verticalCenter=0;
toolDisplayArea.horizontalCenter=0;
displayArea.addElement(toolDisplayArea);
this.addElement(displayArea);
//add toolbox to display
toolbox = new Toolbox(toolDisplayArea);
toolbox.replaceTools(bodySystem.getToolGroup());
this.addElement(toolbox);
}
I can't understand what is your problem with editing button in particular, sorry for that. But I have a lot of notices about your InvestigativeEnvironment which code you've attached.
First, you haven't follow Flex components livecycle (see here or here). So in your code you should add and configure children in createChildren() method.
But anyway you can't use your container to add children both with MXML and from code. If your adding custom components code will be executed first MXML (in your implementation with adding them in constructor it is so) all the MXML tags just remove all your added content (anyway result will be unpredictable). In other case it will be very hard to control instance's order.
I can suggest you to declare your nextButton etc as skin parts and perform their positioning in skin. This way these internal controls will be a part of border and you can add MXML children without any problem. And you can configure them within partAdded() method.
It turns out that I wasn't quite asking the right question. I wanted to edit the components, but specifically the layout and color type attributes of them.
What I need to do is set the id of the components, and then target them using CSS.
For my nextButton, I add the ID like this;
nextButton.id="nextButton";
Then I can lay it out in the MXML file (or external stylesheet) like this;
<fx:Style>
#namespace s "library://ns.adobe.com/flex/spark";
#namespace IE "InvestigativeEnvironment.*";
IE|InvestigativeEnvironment s|Button {
chromeColor: #336666;
}
#nextButton {
bottom: 100;
right: 5;
}
</fx:Style>