Redirecting Swing mouse events - swing

I am trying to make it possible to display and interact with Java Swing components on top of a Java3D canvas. I am displaying the components by painting a transparent JPanel to a buffered image, and then painting that buffer over the canvas using J3DGraphics2D.
What I can't figure out is how to forward mouse events to the swing components in the JPanel.
I want all keyboard and mouse events on the Canvas3D to be dispatched to the JPanel, and then fall back through to the Canvas3D if they aren't captured by any swing components (e.g. the mouse isn't over any of them).
I tried calling Container.dispatchEvent(AWTEvent), but it doesn't successfully dispatch the events to the proper components, even when for example the mouse cursor is right over a button in the Container.
Does anyone know a way to do this? It should be possible.

At long last, I figured it out! It's already been done -- use JCanvas3D and a JLayeredPane. This is the opposite approach to rendering the Swing components in postRender()-- JCanvas3D renders into an offscreen buffer, and then paints to the screen with AWT, creating a lightweight canvas that interacts properly with components in the JLayeredPane, even if they are transparent.
One thing to watch out for -- JCanvas3D redirects all input to the offscreen Canvas3D, but at first my Orbiter didn't work like it had with a heavyweight Canvas3D. All you have to do is add mouse & key listeners to the JCanvas3D, because AWT won't even deliver those events if there are no listeners registered for them.

Related

Cocos2dx scene in child window

The application I am writing is not a game, but does require many of the features one would use in a game... displaying a 2D scene, moving the camera to pan and zoom, rotating or otherwise animating objects within the scene. But the display of the scene will be controlled via numerous regular windows controls.
The best comparison I can think of right now is a level editor. The majority of the user interface is a standard window with panes that contain different controls. The scene is contained in another child window. When the user makes adjustments such as camera location, the scene responds accordingly.
So far, everything I've seen about cocos is geared around a single window. Is it possible to embed a scene into a child window as I've described?
You can add your custom layer to your main scene using Director::getInstance()->getRunningScene()->addChild(...) function

Is it possible to make an object "Transparent" to mouse click?

Im developing a flash game, and i would love to implement raining effect. Here's my progress on rain so far: http://www.squ4re.eu/Rain.html
The code is pretty simple; every raindrop is an object, when it hits the ground it places itself again at the top of the screen and adds splash animation.
But the problem is to click something BEHIND the rain. Lets say i have some selectable units at the battleground. In most cases an random raindrop interrupts selecting an object behind it. So here's my question: Is it possible in flash to create object "transparent" to mouse click, so i can click an object behind it? Or is there any other way to solve this problem?
Thank you in advance.
As #putvande mentioned, you could use mouseEnabled on every interactive object that should be disabled for mouse interaction. You also could create rainLayer and disable it for mouse interaction:
myRainLayer.mouseEnabled = false;
myRainLayer.mouseChildren = false;
mouseChildren - determines whether or not the children of the object are mouse, or user input device, enabled. If an object is enabled, a user can interact with it by using a mouse or user input device. The default is true.
Also consider to use display objects that don't inherit from InteractiveObject, like Bitmap, Shape and Video

Move mouse out of bounds Actionscript 3

My problem is really simple
I´ve an artifact with a mouse inside. When you use it it simulates moving the mouse cursor indefinitely to the right.
Of course when i run my project at some point the mouse will reach the right side of the movieclip and the Mouse_Move event wont work anymore
I need a way make my actionscript to recongnise mouse movement even if im out of bounds
(It´s a mobile aplication so using full screen wont work)
In other words i need a Mouse-Motion Listener!
Though it is not possible to track mouse movements outside of flash with only ActionScript, you could capture the mouse position with javascript in the browser and pass it to your SWF.
See this blog as an example. http://www.nelsond8.com/?p=515
You cannot track the mouse position or actions when it moves outside of the stage.
You can however track when the mouse actually leaves the stage using Event.MOUSE_LEAVE:
function mouseLeave(e:Event):void
{
trace("Mouse left the stage.");
}
stage.addEventListener(Event.MOUSE_LEAVE, mouseLeave);
From here you can decide what the most appropriate course of action will be for your application - adding some 'pause' functionality is pretty common.
Tip: MouseEvent.MOUSE_MOVE is what you should use to detect when the mouse re-enters the stage.

How to make an object be ignored and letting mouse evnets pass through?

Hallo, I been having this problem for a while and I have no idea how to solve it.
I have a flash game (very much like a normal memory game) that has a lot of Movieclips in it that has MouseEvents attached to them. But, when I add a bitmap over the stage (used for covering lots of unwanted things and has to be there) that is the full size of the screen non of my events are fired anymore. The reason is that the overlay bitmap is stealing all of the events.
How can I stop this behavior? Is there a way of letting the events pass through the overlay object? Or for the overlay object to be ignored when it comes to events?
Thanks.
Assuming your overlay is stored in a variable m_overlay, then
m_overlay.mouseEnabled = false;
However you said it is used for "covering lots of unwanted things" so perhaps we need more information on what you are trying to achieve?
I've solved this in the past by creating "proxy" object to capture mouse clicks. The MCs under the bitmap aren't going to receive events.

Key press issue in ActionScript 3

I'm creating a DDR-like game for an assignment and my keyboard seems to respond and trace it, but only if I press on the screen with the mouse first.
How can I get rid of that and just have it respond right away?
right_mc is the arrow that's moving
ArrowRight_mc is the arrow at the top
perfect_mc should pop up briefly
and so should a glowing arrow where it hits.
Here is what I have so far:
if(rightDown){
trace("right arrow");
if(right_mc){
if(right_mc.y >= ArrowRight_mc.y){
perfect_mc.visible = true;
glowRight_mc.visible = true;
}
}
}
This has been a long standing issue for Flash developers. Flash needs keyboard focus before it can detect keyboard events.
The problem is that the browser does not give focus to the SWF until the user clicks somewhere inside the SWF. This does make sense though. I don't want the web page I am on to lose focus just because there is a flash movie embedded somewhere. This is a security feature, to stop things like Flash banner ads being silent key loggers. However there are some instances that it makes sense to force the focus e.g. a Flash game where its the only thing on the HTML page.
Usually the best thing to do is have start menu screen with a "play" button. This forces the user to click on the SWF without even knowing about this "focus issue".
There is more info at the Adobe Technote - Giving keyboard focus to an embedded Flash movie.
***EDIT****
Whether the Flash has focus or not, only affects keyboard events. It will not affect code from running, movieclips from playing, or sounds/video from playing.
The issue here is that the embedded SWF file does not have focus when the screen first loads. You can assign focus to it using JavaScript but in my experience, this does not always work 100% of the time because of variations in the way browsers interpret JS. What a lot of people do is have a big START button following the load of the game so that players have to click on the SWF to begin playing. Some sites, even use JS to detect when the game has lost focus and will pause the game and alert the user.
I suppose I haven't exactly answered your question because I'm not that great at JavaScript but I hope this points you in the right direction.
In response to your comment...
I'm unclear on something. If you have to click to start the song then you've already clicked on the SWF and you should be getting keyboard events, right? So if you're having to click to start then click again, maybe you need to make sure your mouse listener is at the root of your display list.
// in your document class / main AS file...
this.stage.addEventListener(KeyboardEvent.KEY_DOWN, onKeyDown);
Or perhaps you need to poll for input during an EnterFrame loop rather than listen for key events.
I know what you mean. You have a specific object on the stage that needs focus before keyboard events will trigger. I'm having the same issues with a game here. A sprite needs to move with the keyboard arrows but the container needs focus so it will respond. I'm just setting the object I want to move to be tabEnabled as my requirements are only for accessibility purposes so tabbing to the object first will give it keyboard control.