Re: [platform-swt-dev] Nonvisible widgets

[Steve Northover <Steve_Northover@xxxxxxxxxx>]

What was the problem?

Manuel Nogales <mnogales@xxxxxxxxxxxxx>
Sent by: platform-swt-dev-bounces@xxxxxxxxxxx

01/26/2006 12:51 PM

Please respond to
"Eclipse Platform SWT component developers list."

To	"Eclipse Platform SWT component developers list." <platform-swt-dev@xxxxxxxxxxx>
cc
Subject	Re: [platform-swt-dev] Nonvisible widgets

Resolve.

El Jueves, 26 de Enero de 2006 17:27, Manuel Nogales escribió:
> This is a snippet that shows it:
>
> public class VerL {
>                  public
static void main(String[] args) {
>                  
               
Shell sShell = new Shell();
>                  
               
sShell.setLayout(new FillLayout());
>                  
               
sShell.setSize(new org.eclipse.swt.graphics.Point(430, 170));
>                  
               
Composite composite = new Composite(sShell, SWT.NONE);
>                  
               
composite.setLayout(new FillLayout());
>                  
               
try {
>                  
               
                 Class
clasecarga = Thread
>                  
               
                 
               
                 .currentThread()
>                  
               
                 
               
                 .getContextClassLoader()
>                  
               
                 
               
                 .loadClass("CompositeWithFormLayout");
>                  
               
                 Class[]
classes = new Class[2];
>                  
               
                 classes[0]
= Composite.class;
>                  
               
                 classes[1]
= int.class;
>                  
               
                 Constructor
constr = clasecarga.getConstructor(classes);
>                  
               
                 Object[]
param = new Object[2];
>                  
               
                 param[0]
= composite;
>                  
               
                 param[1]
= new Integer(SWT.CENTER);// this is the bug CENTER is not a 
valid style
>                  
               
                 constr.newInstance(param);
>                  
               
} catch (Exception e) {
>                  
               
                 e.printStackTrace();
>                  
               
}
>                  
               
Display display = sShell.getDisplay();
>
>                  
               
sShell.setVisible(true);
>                  
               
sShell.setFocus();
>                  
               
while (!sShell.isDisposed()) {
>                  
               
                 if
(!display.readAndDispatch())
>                  
               
                 
               
display.sleep();
>                  
               
}
>                  
               
sShell.dispose();
>                  }
> }
>
> class CompositeWithFormLayout extends Composite {
>                  private
Label label1 = null;
>                  private
Label label2 = null;
>                  private
Label label3 = null;
>                  private
Text text1 = null;
>                  private
Text text2 = null;
>                  private
Text text3 = null;
>                  FormLayout
layout = new FormLayout();
>                  FormData
data;
>
>                  public
CompositeWithFormLayout(Composite parent, int style) {
>                  
               
super(parent, style);
>                  
               
initialize();
>                  }
>
>                  private
void initialize() {
>                  
               
createComposite();
>                  
               
this.setBackground(Display.getCurrent().getSystemColor(
>                  
               
                 
               
SWT.COLOR_INFO_BACKGROUND));
>
>                  }
>
>                  private
void createComposite() {
>
>                  
               
this.setLayout(layout);
>
>                  
               
label1 = new Label(this, SWT.NONE);
>                  
               
label1
>                  
               
                 
               
.setBounds(new org.eclipse.swt.graphics.Rectangle(
>                  
               
                 
               
                 
               
47,
>                  
               
                 
               
                 
               
20,
>                  
               
                 
               
                 
               
94,
>                  
               
                 
               
                 
               
13));
>                  
               
label1.setText("Name");
>                  
               
label2 = new Label(this, SWT.NONE);
>                  
               
label2
>                  
               
                 
               
.setBounds(new org.eclipse.swt.graphics.Rectangle(
>                  
               
                 
               
                 
               
48,
>                  
               
                 
               
                 
               
44,
>                  
               
                 
               
                 
               
95,
>                  
               
                 
               
                 
               
13));
>                  
               
label2.setText("User");
>                  
               
label3 = new Label(this, SWT.NONE);
>                  
               
label3
>                  
               
                 
               
.setBounds(new org.eclipse.swt.graphics.Rectangle(
>                  
               
                 
               
                 
               
49,
>                  
               
                 
               
                 
               
71,
>                  
               
                 
               
                 
               
92,
>                  
               
                 
               
                 
               
13));
>                  
               
label3.setText("Password");
>                  
               
text1 = new Text(this, SWT.BORDER);
>                  
               
text1
>                  
               
                 
               
.setBounds(new org.eclipse.swt.graphics.Rectangle(
>                  
               
                 
               
                 
               
168,
>                  
               
                 
               
                 
               
16,
>                  
               
                 
               
                 
               
156,
>                  
               
                 
               
                 
               
19));
>                  
               
text2 = new Text(this, SWT.BORDER);
>                  
               
text2
>                  
               
                 
               
.setBounds(new org.eclipse.swt.graphics.Rectangle(
>                  
               
                 
               
                 
               
168,
>                  
               
                 
               
                 
               
42,
>                  
               
                 
               
                 
               
154,
>                  
               
                 
               
                 
               
19));
>                  
               
text3 = new Text(this, SWT.BORDER);
>                  
               
text3
>                  
               
                 
               
.setBounds(new org.eclipse.swt.graphics.Rectangle(
>                  
               
                 
               
                 
               
167,
>                  
               
                 
               
                 
               
67,
>                  
               
                 
               
                 
               
154,
>                  
               
                 
               
                 
               
19));
>
>                  
               
data = "" FormData();
>                  
               
data.left = new FormAttachment(0, 20);
>                  
               
data.right = new FormAttachment(30, 0);
>                  
               
data.top = new FormAttachment(0, 20);
>                  
               
label1.setLayoutData(data);
>
>                  
               
data = "" FormData();
>                  
               
data.left = new FormAttachment(0, 20);
>                  
               
data.right = new FormAttachment(30, 0);
>                  
               
data.top = new FormAttachment(label1, 10);
>                  
               
label2.setLayoutData(data);
>
>                  
               
data = "" FormData();
>                  
               
data.left = new FormAttachment(0, 20);
>                  
               
data.right = new FormAttachment(30, 0);
>                  
               
data.top = new FormAttachment(label2, 10);
>                  
               
label3.setLayoutData(data);
>
>                  
               
data = "" FormData();
>                  
               
data.left = new FormAttachment(label1, 0);
>                  
               
data.right = new FormAttachment(100, 0);
>                  
               
data.top = new FormAttachment(0, 20);
>                  
               
text1.setLayoutData(data);
>
>                  
               
data = "" FormData();
>                  
               
data.left = new FormAttachment(label2, 0);
>                  
               
data.right = new FormAttachment(100, 0);
>                  
               
data.top = new FormAttachment(label1, 10);
>                  
               
text2.setLayoutData(data);
>
>                  
               
data = "" FormData();
>                  
               
data.left = new FormAttachment(label3, 0);
>                  
               
data.right = new FormAttachment(100, 0);
>                  
               
data.top = new FormAttachment(label2, 10);
>                  
               
text3.setLayoutData(data);
>                  }
> }
> It seems to be that the problem is to load the composite with
> java.lang.reflect
>
> thanks
>
> El Jueves, 26 de Enero de 2006 10:10, Carolyn MacLeod escribió:
> > Please provide a snippet that shows the problem.
> > Some example snippets using FormLayout can be found on this page:
> > http://www.eclipse.org/swt/snippets/
> >
> > Also, you might try asking your question on the SWT newsgroup:
> > news://news.eclipse.org/eclipse.platform.swt
> >
> > Thanks,
> > Carolyn
> >
> >
> >
> >
> > Manuel Nogales <mnogales@xxxxxxxxxxxxx>
> > Sent by: platform-swt-dev-bounces@xxxxxxxxxxx
> > 01/26/2006 03:43 AM
> > Please respond to
> > "Eclipse Platform SWT component developers list."
> >
> >
> > To
> > "Eclipse Platform SWT component developers list."
> > <platform-swt-dev@xxxxxxxxxxx>
> > cc
> >
> > Subject
> > [platform-swt-dev] Nonvisible widgets
> >
> >
> >
> >
> >
> >
> > hi
> >
> > I have made an application SWT on Windows, but when proving it
on linux
> > some
> > widgets are not visible.  I take to several days looking
for the cause
> > but I
> > am not able to find it, apparently everything is well, we used
the same
> > version of the JDK (1.5), SWT (3.1.1), etc..  The only thing
that they
> > have
> > in common the widgets that are not visible is that they are in
a
> > FormLayout.
> > What can be the cause?
> >
> > Thanks
> > _______________________________________________
> > platform-swt-dev mailing list
> > platform-swt-dev@xxxxxxxxxxx
> > https://dev.eclipse.org/mailman/listinfo/platform-swt-dev
>
> _______________________________________________
> platform-swt-dev mailing list
> platform-swt-dev@xxxxxxxxxxx
> https://dev.eclipse.org/mailman/listinfo/platform-swt-dev
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