Re: [platform-swt-dev] Text background color

[Steve Northover <Steve_Northover@xxxxxxxxxx>]

That behavior is platform specific.
 There is no API in Windows to query that color from the operating
system.  By observation, Windows is using COLOR_3DFACE which maps
to the SWT system color, SWT.COLOR_WIDGET_BACKGROUND.

Stéphane WASSERHARDT <stephane.wasserhardt@xxxxxxxxxxxx>
Sent by: platform-swt-dev-bounces@xxxxxxxxxxx

10/04/2005 04:53 AM

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To	"SWT" <platform-swt-dev@xxxxxxxxxxx>
cc
Subject	[platform-swt-dev] Text background color

Hello all !
 
I found a strange behaviour of the « Text
» widget today :
When it’s not editable (setEditable(false)),
the background color of the widget becomes gray (at least on windows, which
is the OS I use).
Then if I query this background color, it
returns the “editable” background color : white (instead of gray !)
Maybe this is the expected behaviour, but
then, how can I properly get the “non-editable” background color ?
 
Here is a snippet demonstrating the problem
:
 
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
 
public class BackgroundTest {
      
      public
static void main (String [] args) {
           
Display display = new Display();
           
Shell shell = new Shell(display);
           
RowLayout layout = new RowLayout();
           
layout.wrap = true;
           
shell.setLayout(layout);
           

           
// Shows a simple editable text widget   
Text textE = new Text (shell, SWT.BORDER);
           
textE.setText ("editable");
           
// Shows a label with background color set to the text’s background color
           
Label labelE = new Label (shell, SWT.BORDER);
           
labelE.setText("editable\nbackground");
           
labelE.setBackground(textE.getBackground());
           

           
// Shows a simple non-editable text widget     
           
Text textNE = new Text (shell, SWT.BORDER);
           
textNE.setEditable(false);
           
textNE.setText ("non-editable");
           
// Shows a label with background color set to the non-editable text’s
background color
           
Label labelNE = new Label (shell, SWT.BORDER);
           
labelNE.setText("non-editable\nbackground");
           
labelNE.setBackground(textNE.getBackground());
           
// THIS LABEL’S BACKGROUND COLOR IS WHITE !
           
// IT SHOULD BE GRAY !!!!
 
           
shell.pack();
           
shell.open();
           
while (!shell.isDisposed()) {
                 
if (!display.readAndDispatch())
                       
display.sleep();
           
}
           
display.dispose();
      }
 
}
 
Thanks in advance for your help !
 
Stephane_______________________________________________
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