Transparent area of lighweight components transparent for events?

Hello,
I'm making lightweight components by extending JComponent. These contain a CubicCurve2D line which I want to be sensitive to mouseevents.
My question is: How do I make the transparent areas within the component bounds transparent for mouse events?
I want the events only to apply to the CubicCurve2D not the whole rectangle. So I want components that can overlap and only painted parts of the component to respond to mouse events and those showing through transparent areas to also respond.
Any help would be much appreciated as I'm really stumped on this!

I previously implemented the project like this but was concerned that it required excessive searching for intersections on Mouse events... using up lots of processing power and generally being clunky.
I am creating many of these curves (100's) and was hoping to optimize performance by allowing each one to repaint itself (avoiding repainting the whole lot) in response to mouse overs, clicks etc.
Is there anyway to define the bounds of a component to match it's painted area?
For example if I created a round button that partially overlapped a square button; how could you avoid activating the round button when clicking outside of the circle but inside it's rectangular bounds while still activating the square button underneath this transparent area?

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Well,
I figured it out, and it wasn't too bad. I figured I'd post
to let anyone else searching this board find the answer that I
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Importing Images w/ Transparent Areas

Hi Folks,
I'm working on creating a form and I am creating graphics for layout. I am using Illustrator CS3 to create them, but when I try the various formats of files, I cannot get them to display properly in Designer ES2.
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TIFF - According to the help doesn't support CMYK?
"Designer ES2 supports Monochrome (1 color component 1-bit depth), Greyscale (1 color component 8-bit depth), RGB (3 color components 8-bit depth), and Palette (1 color component 1,2,4,8-bit depths) TIF images. "
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Hi Scott,
I have used PNG, but you need to save them for 'web & devices' in Photoshop. Illustrator CS4 also has a 'save for web& devices' as well. Not sure about CS3.
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Why do I get a colored shadow behind shadow and feather transparency areas when printing?

Hello,
I've been pulling my hair out over this and finally went to my printer to ask if they had insight as to why this is happening. I'll include his reply here but would like to hear your expert opinions too!
When laying out a file in InDesign, I do a lot of overlapping, feather and some drop shadow and always get a colored shadow behind the transparency area when printing out from a pdf. These files are being designed for print, which is what I thought InDesign was created for - as an updated alternative to Quark and Pagemaker? Here is what the printer says:
"Ive taken a look at the file in question and the issues this lady is experiencing can not be resolved in InDesign. What she needs to do is build the background image with color overlays all in Photoshop as a Layered PSD. Then flatten it and pull it in to InDesign as a Tiff. Then she can place her text over the top of it. She needs to use image masks on the color overlays - for the areas she does not what the color to violate.
What it comes down to is these fancy design effects out of InDesign and Illustrator should never be used for printing. They can be used for web design. Reason is, they cause RIP problems. Things fall off the file and transparent areas go away just to name a few. This happens all the time."
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Here is a link to the pdf. If someone would like to see the original indd file, I can post it somewhere.
http://displaysunlimitedinc.com/test/panel_3_text.pdf
There is a 1 inch blur drop shadow on the black and white temple image; a 1 inch feather on the black and white screened back image behind the main text box; and no drop shadow or feather on the map at top right, yet I get a colored shadow behind all 3 of these areas when I export the indd file to pdf and print that out. The fact that I get a shadow behind the map puzzles me.
Thank you very much in advance.

Horgycat,
The CMYK/RGB question is actually pretty complex, and depends to a great extent on how the final output is going to be produced.
If the files are destined for a printing press, all RGB elements must be converted to CMYK prior to printing. You have the option of doing that before placing in ID, or during export to PDF, and there are pros and cons to both methods, but if you don't know until the last minute what the print conditions will be, the convert on export path is more flexible.
Spot colors are a different matter. As far as I'm concerned, you should NEVER specify a spot color unless you are actually using spot ink on a press. A lot of inkjet and laser devices claim to be Pantone certified, but the reality is that even with expanded gamuts available using more than four inks, I'd estimate that better than half the Pantone solids are not reproducible as simulations that would satisfy me or my clients. The convert spot to process route should only be used, in my opinion, when you've designed a job properly to be printed using spot colors, and suddenly you have an output change or an added image that forces you to move to a process output. The last time I tried it, by the way, I had issues at the printer (the regular prepress guy was out of town, so I'm not sure what went wrong) and I ended up re-building the file with real process colors to get the transparency to work.
But you mentioned that you are doing exhibition panels, which implies to me that they are probably NOT going on a press -- you need to do hundreds, or sometimes even thousands, of copies to make a press cost-effective compared to digital printing. I used to work in a large-format output bureau doing just this kind of work, and we used large inkjet plotters. In this case, mixed RGB and CMYK files are less of an issue since most plotters will handle either, and depending on if they have an internal or external RIP or none at all, you may actually get better color fidelity using RGB as CMYK colors may get converted in the RIP to the RGB values that the plotter understands, and then get converted back a second time to CMYK (CMYKOG or whatever ink combination is used) internally before the ink is sprayed. Only the print provider would be in a position to tell you the correct color space for the equipment.
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I tried expanding the canvas (using Photoshop) to a 16 x 9 width-to-height ratio with Black fill. Worked perfectly in iPhoto.
Thanks for the tip about the wrong aspect ratio.

Error: Blurb / The transparent areas will show as opaque in your book.

I get this message when uploading my book from Lightroom to Blurb.
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Hi kdd!
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I get the same message – both when producing a pdf or trying to send to Blurb – still I can't find transparency anywhere in the document. The pdf looks fine, but I worry about what will happen after sending to Blurb.
Thanks for your kind answer!

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Setting the background color in the toolbar seems to have no effect.
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I have a logo file, saved as PNG, that is black on transparent. Very simple file, just stylized black lettering on a transparent background. In Illustrator CS5, I can place that file, do a "Live Trace" in "Lettering" mode, and Illustrator will correctly ignore the transparent areas when I expand the trace. After expanding, I'm left with scalable paths and an easy way to change the fill color to have the logo work with my background.
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I doubt that the Trace feature in CS 6 is a big improvement to CS 5
Here look what might help you with this you might even be able to do a better job in Photoshop.
I'm using your screen shot so the trace is not a good one but shows you the steps you can take to make this work better.
Even though it is an image you can edit the colors some what here I went to Edit>Edit Colors>Adjust Color Balance ad turn the Cyan down to "0" and move the black slide a bit higher as well.
The I did my trace and remove the clipping paths there are 2 clipping paths the way you remove the path and compund path for the square is to select one edge of the psth with the direct select tool, you need smark guides turned on to see the paths.
the hit delete and the hit delete again and repeat for the second compound path as such path willpreven the sqaure to becoming a background filled path.
It should be noproblem filling this without a Live Paint Group it is just that you are not familiar with what is happening to the art.

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Hallo LR experts and community,
in LR 3.6 I worked with panoramas imported as 16bit TIFs from PTGui which, at their margin, are transparent. These transparent areas were initially marked white in LR 3.6. and, most importantly, it was readily possible to modify these areas with the brush or repair tools in LR. After updating to LR5 and importing my LR 3.6 libraries I realised that all of the retouche and modified transparent areas are white again and all the retouche I did is gone, wherby e.g. the circles indicating where I used the repair tool are still in place.
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RE: Transparent areas on images used inPictureButtons

Thanks all for the responses.
I have talked with Forte Tech Support and there is a way to get this to
work. To get transparent areas in an image on a PictureButton, you
simply manipulate the FillColor of the PictureButton widget itself.
Apparently, Forte takes the fill color of the button and makes it the
transparent color for the image. For instance, if you set the fill color
for the PictureButton to white, then any white areas on the image become
transparent.
A Tech Note should appear shortly explaining this issue.
>
I have a GIF image with transparent areas that I'd like to use in a
PictureButton. Will Forte recognize the transparent areas in the GIF
format and color those areas with the system settings for buttons? I've
tried everything I could think of, but the transparent areas are still
being painted gray.
I am running Forte 3.0d on Windows 95.
Van Vuong
Lead Technical Analyst
Office: 972.985.5289
VoiceNow: 972.330.0822
Internet: [email protected]
PAGE NET

I tried expanding the canvas (using Photoshop) to a 16 x 9 width-to-height ratio with Black fill. Worked perfectly in iPhoto.
Thanks for the tip about the wrong aspect ratio.

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I just noticed this, this is great!
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http://twitter.com/altweb

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Thanx for that Todd
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Transparent area of lighweight components transparent for events?

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