Java swing CheckBox is not visible in JCheckBoxMenuItem - swing

The checkbox icon is not visible in my JCheckBoxMenuItem..I add this JCheckBoxMenuItem to JideMenu which extends JMenu.How to make this checkbox visible eventhough if it is not selected..?
Thanks in advance.

I'm not entirely certain where your problem is coming from. It sounds that just the checkbox component isn't visible, while all other MenuItem types are showing up on the Menu.
I'm not very experienced with the Swing library, but if you could put a few lines of code regarding your Menu/MenuItems, I'm certain you'll get a much better answer.
Taking a shot in the dark, you mention that the MenuItem (checkbox) is added to the menu, but have you added the menu into a MenuBar/JMenuBar object and set your JFrame to use that Bar via the setMenuBar() method? This is under the assumption that the entire menu isn't showing up (not just the checkbox component), but figured I'm try to preempt a solution here.

menuBar = new JMenuBar();
menu = new JMenu("A Menu");
menuBar.add(menu);
cbMenuItem = new JCheckBoxMenuItem("A check box menu item");
menu.add(cbMenuItem);
It´s pretty much straightforward and taken directly from here. I guess it´s all anyone can say about it until you show us your code.

setState(true) will show the checkmark… IIRC there's also a constructor that you can pass a boolean if you want it created with the checkmark visible.

Related

(Actionscript 3) How to Hide Right Click Menu?

I found a cheat to one of my games in which you could access a screen you are not supposed to by right clicking and clicking on "Play".
I tried typing in the following code:
var cm:ContextMenu=new ContextMenu();
cm.builtInItems.play=false;
but it is still not removing that item. Is there anything I am doing wrong?
You forgot to apply the context menu.
stage.contextMenu = cm

Opening pulldown section with button

There is probably an answer for this but I have no idea of the terminology I would search for unfortunately!
Basically, there is a button on my Wordpress website at the top right which when clicked, pulls down a form to fill out. What's the easiest way of creating a button further down the page which would open that pulldown and take the user up there, presumably with an anchor? Simple HTML/CSS would be ideal because A: I can create a text box in the page layout creator and just paste the code in there and B: My coding knowledge is quite limited!
The website is www.harringtonsproperty.co.uk. The button in question is the BOOK A VALUATION at the top right.
Thank you!
This cannot be done with CSS alone. You need to use JavaScript.
Currently, the 'click' event is described at the top of the custom.js file. You'll need to add an additional JS function into this file to achieve what you want. For starters/example:
jQuery('button#contactToggle2').click(function(e){
e.preventDefault();
if( jQuery('#contactSlide').css('display') == 'block' ) {
jQuery('#contactSlide').slideUp(500);
} else {
jQuery('#contactSlide').slideDown(500);
// Handle scroll to top
jQuery('html, body').animate({scrollTop : 0},800);
}
})
You'll then need to give your new button an id="contactToggle2" in order for this to work. Again, this is just an example.

Can I create an overlay layer to disable all touches, even on menus?

I need to show a popup layer on a scene, creating a semi-transparent background layer that will also prevent touch events propagation. I am using the latest cocos2d-x v. 3.0-alpha-0.
What I want to achieve is a popup layer that fully handles touches (eg. buttons, menu items, scroll views, etc.), laying on a background layer (for design purposes), that covers the current scene. All items in the scene should not respond to touches any more.
Is this achievable using the new EventDispatcher class? I've been able to disable all touches to the main scene, but all instances of MenuItem that live in the scene are still touchable and active.
How can I achieve this? And, also, how can I create a touch listener that prevents all touches to the main scene but not to the popup?
You can disable menu items by setting setDisable property of menuitems to false.
Example
_menuItem->setEnabled(false);
For Layers use setTouchEnabled property
_backGroungLayer->setTouchEnabled(false);
Make sure that popup layer is not child of layer you want to disable.
To disable all items in menus do this
Suppose _menu contain various menuitems.
CCARRAY_FOREACH(_menu->getChildren(), item)
{
item.isEnabled=NO;
}
if you want to disable selected items just give them tags.There is no need to make any list.
I had the same problem and solved it with mm. It was dirty, but it worked:
Create a button using ccui.button.
Set the button size to your screen size.
Add this button as a background to your popup layer.
This will prevent any thing behind it being clicked.
By default, all CCMenu's have a set priority (kCCMenuHandlerPriority = -128) in cocos2d 2.1. So in a class (usually a CCNode descendant) that wants to swallow everything and preempt anything i do like in this dialog sequencer example below :
- (void)onEnter {
backdrop_.visible = self.isBackDropShown;
MPLOG(#"Adding self as a swallower touch delegate, above the rest of the planet.");
[[[CCDirector sharedDirector] touchDispatcher] addTargetedDelegate:self priority:_dialogTouchPriority swallowsTouches:YES];
for (CCMenu *mn in _menus) {
mn.touchPriotity = _dialogTouchPriority -1 ;
}
[super onEnter];
}
where _dialogTouchPriority is kCCMenuHandlerPriority-1 by default. It will be served before everything 'below'. It is a bad hack (cocos2d internals could be changed and break this), i know , but bullet proof. Use carefully, make certain you only ever have one of these in your scene.

Flex 3 custom components positioning - popups

I have created a custom TitleWindow whcih i use as a popup. The contents of the popup are created dynamically depending on a selection a user makes from a datagrid.
My problem is, my datagrid is in another custom component whcih is toward the bottom of my page so when a user clicks one of the items the popup is displayed however with half of it out of sight at the bottom of the page.
Is there a way to position a popup so that it displays at the top of the page?
I know at least two things you can use to position a popup, though there might be more.
When you place a popup you can choose in which parent component to place the popup:
PopUpManager.createPopUp(this.parent, TitleWindowComponent);
In the component itself:
PopUpManager.centerPopUp(this);
I wanted a help tooltip type popup (with help text) to appear next to the icon that opened it. In the end I used move(x,y) to move the window where I wanted it. To get the coordinates to place it, use globalToLocal:
var globalX:Number = localToGlobal(new Point(myIcon.x, myIcon.y)).x;
var globalY:Number = localToGlobal(new Point(myIcon.x, myIcon.y)).y;
toolTip.move(globalX + myIcon.width, globalY);
That puts the window just to the right of the icon, myIcon.

What's the best way to hide a tab in a TabNavigator?

I'd like to conditionally hide a tab in a TabNavigator. It seems that setting visible doesn't work properly (presumably because this is how the TabNavigator hides the tabs that aren't currently selected).
What's the right way to do this?
You can do this by making use of TabNavigator's getTabAt() method which returns the Button that makes up the visual tab. You can then set that Button's visible property. It's a little tricky to get this setup with a bindings, but it's doable.
You could also consider just disabling the tab instead, which you can do by setting enabled on the corresponding TabNavigator child (for which visible didn't work).
What do you mean by hide? If you actually mean remove, then just take your array that's bound to the data in the TabNavigator, and remove the applicable element from it.
If you want to just have them removed temporarily, create a component of your own that encapsulates the TabNavigator and has an array of removed tabs and an array of actual tabs. Then handle this as you see fit.
You might want to check out the flexlib project. They have a component called SuperTabNavigator that adds a lot of functionality to the base Flex TabNavigator, including hiding tabs (I think).
If you do have to create your own component, though, it's a bit more tricky. The thing to know is that "tabs" are actually specially styled buttons, contained within a TabBar component (the TabBar is then contained within the TabNavigator). What you'll have to do then, is subclass TabNavigator and have some property on your views (i.e. the canvases, etc. that are added to the TabNavigator) that is bound to the visible and includeInLayout properties of the TabBar buttons.
In essence, what you'll have is something like:
BindingUtils.bindProperty( tabButton, "visible", view, "someProperty" );
BindingUtils.bindProperty( tabButton, "includeInLayout", view, "someProperty" );
I don't know about TabNavigator, but in other containers, you can set the includeInLayout property to false and it will be ignored. You probably still need to combine it with visible.
var secondTab = tabNavigator.removeChildAt(0);