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Replies:
13
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Last Post:
Jan 6, 2008 6:58 PM
by: daeone
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If Windows were allowed to be non-rectangular,should Components be as well?
Posted:
Aug 17, 2006 9:14 AM
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Hi,
Im not sure if awt/swing will ever have non-rectangular windows, but if it did I was wondering how far it should go? Should the toplevels be the only target for trianglur, circular, ovalish, etc... shapes? Or should it be taken further, and allow odd shapped Components?
I was reading about an X extension library a little while ago and it seemed to indicate that it allowd things like non-rectangular buttons and such. Which made me wonder how far can the non-rectangular go in Java?(and yes I understand you can create the appearance of non-rectangular components already but if it was baked in the cake it may just be easier).
thoughts folks?
leouser
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Re: If Windows were allowed to be non-rectangular,should Components be as w
Posted:
Aug 17, 2006 9:28 AM
in response to: leouser
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Hello Brian
I know that AWT guys are investigating a way to support lightweight/heavyweight mixing
If this is implemented it would be very close to nonrectagular components
alexp
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Re: If Windows were allowed to be non-rectangular,should Components be
as w
Posted:
Aug 17, 2006 10:02 AM
in response to: alexfromsun
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Are you saying that you want components in general or AWT components
to be shaped? AWT components would have to be fixed with the
lightweight/heavyweight mixing mechanism. I'm also hoping that such
things would let us embed arbitrary components from other apps inside
of a Swing app, say an Excel OLE control, or the webbrowser.
- Josh
On Aug 17, 2006, at 9:28 AM, swing@javadesktop.org wrote:
> Hello Brian
>
> I know that AWT guys are investigating a way to support lightweight/
> heavyweight mixing
>
> If this is implemented it would be very close to nonrectagular
> components
>
> alexp
> [Message sent by forum member 'alexfromsun' (alexfromsun)]
>
> http://forums.java.net/jive/thread.jspa?messageID=143965
- Blasting forth in three part harmony!
[att1.html]
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Re: If Windows were allowed to be non-rectangular,should Components be
as
Posted:
Aug 17, 2006 10:18 AM
in response to: Joshua Marinacci
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'Are you saying that you want components in general or AWT components
to be shaped?'
I think you are asking:
1. Anything that subclasses Component
or
2. Any Component in the AWT package.
In that case, the question was in case 1. I at this moment don't have a need for a snake shaped button by the way.
BH
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Re: If Windows were allowed to be non-rectangular,should Components be
as
Posted:
Aug 17, 2006 10:31 AM
in response to: leouser
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The reason I ask is that you can make shaped JComponent classes. You
can override painting and the contains method to make your buttons be
shaped. This won't work for AWT components, of course, because that's
outside of Java's control right now.
- Josh
On Aug 17, 2006, at 10:18 AM, swing@javadesktop.org wrote:
> 'Are you saying that you want components in general or AWT components
> to be shaped?'
>
> I think you are asking:
> 1. Anything that subclasses Component
> or
> 2. Any Component in the AWT package.
>
> In that case, the question was in case 1. I at this moment don't
> have a need for a snake shaped button by the way.
>
> BH
> [Message sent by forum member 'leouser' (leouser)]
>
> http://forums.java.net/jive/thread.jspa?messageID=144005
- Blasting forth in three part harmony!
[att1.html]
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Re: If Windows were allowed to be non-rectangular,should Components be
Posted:
Aug 17, 2006 10:42 AM
in response to: Joshua Marinacci
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Hello Josh
Overriding paint() and contains() work if you dont add children to a component, so it will work for JButtons,
but not for JPanels with arbitrary lightweight inside
So we support shaped JComponents in a limited way
alexp
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Re: If Windows were allowed to be non-rectangular,should Components be as w
Posted:
Aug 17, 2006 10:22 AM
in response to: alexfromsun
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'Hello Brian
I know that AWT guys are investigating a way to support lightweight/heavyweight mixing
If this is implemented it would be very close to nonrectagular components
alexp'
I bet that would help solve the JInternalFrame/Heavyweight mixing problem. I took a peek at how things are painted in AWT and it seems like there is some native painting going on that is clobering the Swing painting. It seemed like a buffer of the last time the widget was drawn was being stored in some unseen place and being redrawn when the widget was moved.
BH
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Re: If Windows were allowed to be non-rectangular,should Components be as w
Posted:
Aug 20, 2006 1:29 AM
in response to: leouser
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The irony is, Swing does support non-rectangular windows - if you use Java on a Mac. It is just that the Sun engineers are once more busy adding nonsense features to Swing, instead of finally geting things right in their JRE implementation and implementing APIs as defined.
On a Mac you get a non-rectangular Window by just using the API as described:
* Set the background of a top-level window to Color(0, 0, 0, 0). That is, set the background to transparent.
* Turn the normal window decoration off
* Use an image with an alpha-component to represent the non-rectangular window background. The image should be non-transparent where you want to have the window contents, and transparent where you want to see the desktop sine through.
* paint that image as the window background.
* place components on the window as normal. It probably pays off to use a custom layout manager which ensures you can't place components outside of the non-transparent part of the background window.
Of course the Sun engineers couldn't be bothered to implement transparency for top-level windows. It is just too hard for them. They are more busy writing yet another cool demo for some conference.
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Re: If Windows were allowed to be non-rectangular,should Components be as w
Posted:
Aug 20, 2006 1:59 AM
in response to: ewin
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I think the problem is that not all native systems provide
appropriate support for this feature 
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Re: If Windows were allowed to be non-rectangular,should Components be as w
Posted:
Aug 20, 2006 7:48 AM
in response to: ewin
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Hmmm, interesting. It seems like on Mac you'd can make it look that way. But does it feel that way? If I click on the transparent part of the window and drag, does the Window still drag?
leouser
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Re: If Windows were allowed to be non-rectangular,should Components be
as w
Posted:
Aug 20, 2006 10:35 AM
in response to: leouser
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The window will still drag if you click in the transparent area. It's
just a clever hack.
In response to the previous poster, it is very difficult to add
shaped and translucent window support if the OS does not support it
natively. XP supports shaped windows, but with limitations on the
mask. It also interferes with hardware acceleration. On X the support
depends on which extensions and video drivers you have. Doing a
quick version is easy. Doing it properly on all platforms is very
difficult.
It *is* on our list of things we would like to support for Java 7,
however.
- Josh
On Aug 20, 2006, at 7:48 AM, swing@javadesktop.org wrote:
> Hmmm, interesting. It seems like on Mac you'd can make it look
> that way. But does it feel that way? If I click on the
> transparent part of the window and drag, does the Window still drag?
>
> leouser
> [Message sent by forum member 'leouser' (leouser)]
>
> http://forums.java.net/jive/thread.jspa?messageID=144860
- Blasting forth in three part harmony!
[att1.html]
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Re: If Windows were allowed to be non-rectangular,should Components be
Posted:
Dec 20, 2007 3:28 PM
in response to: Joshua Marinacci
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we have a translucent, shaped window in a java application in mac os x. we are trying to implement sliders in the window. when we grab the slider to move, the entire window moves too. This applies also to scroll bars and any drag and drop component.
is there a way to disable the drag function from the java app, of an entire window in mac os x to allow us to use the sliders and scroll bars.
(this problem does not apply to Windows)
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Re: If Windows were allowed to be non-rectangular,should Components be
Posted:
Dec 20, 2007 4:57 PM
in response to: daeone
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The window shouldn't be dragging itself when a component has focus.
Try adding a mouse pressed listener which will request the focus to
the slider when it is pressed.
- Josh
On Dec 20, 2007, at 6:28 PM, swing@javadesktop.org wrote:
> we have a translucent, shaped window in a java application in mac
> os x. we are trying to implement sliders in the window. when we
> grab the slider to move, the entire window moves too. This applies
> also to scroll bars and any drag and drop component.
>
> is there a way to disable the drag function from the java app, of
> an entire window in mac os x to allow us to use the sliders and
> scroll bars.
>
> (this problem does not apply to Windows)
> [Message sent by forum member 'daeone' (daeone)]
>
> http://forums.java.net/jive/thread.jspa?messageID=251052
Joshua Marinacci, Sun Engineer
http://weblogs.java.net/blog/joshy/
joshua.marinacci@sun.com
[att1.html]
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Re: If Windows were allowed to be non-rectangular,should Components be
Posted:
Jan 6, 2008 6:58 PM
in response to: Joshua Marinacci
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It does not work for me, I tried this code on MAC:
public static void main(String [] args) {
JFrame jFrame = new JFrame();
JTextArea jTextArea = new JTextArea("test");
jFrame.add(jTextArea);
jFrame.setBackground(new Color(0,0,0,150));
jFrame.setVisible(true);
}
If you try to select with your mouse by clicking and dragging from the end to the begin of the text ("test") in the text box, the window dragging, and It should not...? the text box got the focus!
I tried it on MAC OS X 10.4.11 with the JVM 1.5
Thanks!
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