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ToolItems in section#textClient gets white background instead of being transparent [message #986928]

Thu, 22 November 2012 06:47

Edvin Syse
Messages: 2
Registered: July 2009

Junior Member

I've added buttons to a Section in a Form by creating a ToolBar and setting it as the Section's textClient. When I add ToolItems to the ToolBar and set a transparent png as the icon image, the area background of the button is white instead of showing the gradient from the Section behind it. Is there a way to override the background drawing, or should I use another approach to add buttons to the Section?

Here is the code I use to create the Toolbar and populate it with a button:

ToolBar toolbar = new ToolBar(section, SWT.NONE);
section.setTextClient(toolbar);

ToolItem item = new ToolItem(toolbar, SWT.PUSH);
item.setImage(myTransparentIcon);

I've attached an image that shows how it renders now.

Attachment: section.png
(Size: 2.21KB, Downloaded 24 times)

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Re: ToolItems in section#textClient gets white background instead of being transparent [message #987094 is a reply to message #986928]

Fri, 23 November 2012 07:39

Edvin Syse
Messages: 2
Registered: July 2009

Junior Member

I ended up with throwing the ToolBar and ToolItems out the Windows for a custom Composite with an ImageHyperlink. Transparency worked out of the box there:

Composite toolbar = new Composite(section, SWT.NO_BACKGROUND);
toolbar.setLayout(new FillLayout(SWT.HORIZONTAL));
section.setTextClient(toolbar);

ImageHyperlink link = new ImageHyperlink(toolbar, SWT.WRAP);
link.setToolTipText(title);
link.addHyperlinkListener(onclick);
link.setImage(image);

See attached image for the result.

Attachment: section.png
(Size: 2.04KB, Downloaded 36 times)

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