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How to draw hyperlink in TreeViewer column? [message #655622]

Mon, 21 February 2011 20:16

David Whiteman
Messages: 5
Registered: July 2009
Location: Research Triangle Park, N...

Junior Member

I'm trying to use a StyledString to draw text as if it were a hyperlink. I am doing this in the update() method of the column's label provider. It seems that simple methods on the ViewerCell such as setText(), setForeground(), and setFont() work as expected, but when I try to use setStyleRanges(), there is no effect.

Here's an excerpt:

Styler style = new Styler()
{
public void applyStyles(TextStyle textStyle)
{
textStyle.font = boldFont;
textStyle.foreground = display.getSystemColor(SWT.COLOR_BLUE);
textStyle.underline = true;
}
};
StyledString styledString = new StyledString(cell.getText(), style);
cell.setStyleRanges(styledString.getStyleRanges());
cell.setText(styledString.getString());

The style ranges appear to have no effect. The font, foreground, and underline settings are ignored, unlike when I call setFont() or setForeground() on the cell.

I also tried creating a StyleRange directly and set the characteristics that way, but still no luck in changing the cell's appearance.

Is style ranges simply unsupported by the TreeViewer?

I'm I going about this in too hard of a way? I just want to have hyperlink capability in one of the columns of my tree viewer.

Thanks in advance,
David

---
David Whiteman
Cisco Systems

[Updated on: Mon, 21 February 2011 20:19]

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Re: How to draw hyperlink in TreeViewer column? [message #655831 is a reply to message #655622]

Tue, 22 February 2011 13:33

David Whiteman
Messages: 5
Registered: July 2009
Location: Research Triangle Park, N...

Junior Member

Apparently if your label provider subclasses ColumnLabelProvider, any style ranges you apply to the cell are ignored. I changed my label provide to subclass StyledCellLabelProvider, and now I can draw nice hyperlinked txt.

---
David Whiteman
Cisco Systems

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