| SWT to Image [message #191233] |
Tue, 09 August 2005 15:38  |
Eclipse User |
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Originally posted by: renjitheclipse.yahoo.com
Iam trying to capture the image of an SWT widget into a ImageFigure so it
can be displayed on GEF. Has any one done this successfully. I am only
able to capture this when the widget is visible.
Shell shell2=new Shell();
org.eclipse.swt.widgets.Button button=new
org.eclipse.swt.widgets.Button(shell2,SWT.SIMPLE);
GC gc=new GC(button);
button.setBounds(0,0,100,20);
Image img=new
Image(shell.getDisplay(),button.getBounds().width,button.get Bounds().height);
gc.copyArea(img,0,0);
ImageFigure imgFig=new ImageFigure(img);
panel.add(imgFig);
This works as longs as the spinner is visible on screen. But I need to
have this hidden. When I tried, button.setBounds(-1000,-1000,100,20), it
is not able to capture the image since it is not visible.
Any ideas?
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| Re: SWT to Image [message #191249 is a reply to message #191233] |
Tue, 09 August 2005 17:06  |
| Eclipse User |
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Originally posted by: sunil_kamath.nohotspammail.com
"Renjith" <renjitheclipse@yahoo.com> wrote in message
news:c5d878f51b97870fa07a706925e02399$1@www.eclipse.org...
> Iam trying to capture the image of an SWT widget into a ImageFigure so it
> can be displayed on GEF. Has any one done this successfully. I am only
> able to capture this when the widget is visible.
>
> Shell shell2=new Shell();
> org.eclipse.swt.widgets.Button button=new
> org.eclipse.swt.widgets.Button(shell2,SWT.SIMPLE);
>
> GC gc=new GC(button);
>
> button.setBounds(0,0,100,20);
>
> Image img=new
> Image(shell.getDisplay(),button.getBounds().width,button.get Bounds().height);
>
> gc.copyArea(img,0,0);
> ImageFigure imgFig=new ImageFigure(img);
> panel.add(imgFig);
>
> This works as longs as the spinner is visible on screen. But I need to
> have this hidden. When I tried, button.setBounds(-1000,-1000,100,20), it
> is not able to capture the image since it is not visible.
>
SWT does not support scraping of hidden controls, or even of hidden portions
of partially visible controls.
So, if you need it hidden, then you are out of luck.
What you could do is create the widget, scrape it, then dispose it
immediately.
That way you have the image and the widget is gone.
---
Sunil
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| Re: SWT to Image [message #191277 is a reply to message #191233] |
Tue, 09 August 2005 19:39 |
| Eclipse User |
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Originally posted by: none.us.ibm.com
The VE project can tell you everything you need to know about screen
scraping. Ask on their newsgroup.
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