/**
* Update ProgressBar widget.<br>
* Try to reuse the old ProgressBar if possible, otherwise dispose it and create a new one.
*
* @param parent
* @param indeterminate
* @param visible
*/
void eswtUpdateProgressbar(Composite parent, boolean indeterminate, boolean visible) {
// Only dispose old ProgressBar if it has wrong style
if (eswtProgressBar != null) {
boolean isIndeterminate = (eswtProgressBar.getStyle() & SWT.INDETERMINATE) != 0;
if (indeterminate != isIndeterminate) {
eswtProgressBar.setLayoutData(null);
eswtProgressBar.dispose();
eswtProgressBar = null;
}
}
// create new ProgressBar
if (eswtProgressBar == null) {
int newStyle = indeterminate ? SWT.INDETERMINATE : SWT.NONE;
eswtProgressBar = new ProgressBar(parent, newStyle);
eswtProgressBar.setLayoutData(eswtProgbarLD);
// update ScrolledText's layoutdata
FormData imageLD = (FormData) eswtImgLabel.getLayoutData();
imageLD.bottom = new FormAttachment(eswtProgressBar);
}
// set Progressbar visibility
if (eswtProgressBar != null) {
eswtProgbarLD.top = (visible ? null : new FormAttachment(100));
eswtProgressBar.setVisible(visible);
}
}
/** Creates content Composite. */
Composite eswtConstructContent(int style) {
Composite comp = super.eswtConstructContent(SWT.VERTICAL);
FormLayout layout = new FormLayout();
layout.marginBottom = Style.pixelMetric(Style.QSTYLE_PM_LAYOUTBOTTOMMARGIN);
layout.marginTop = Style.pixelMetric(Style.QSTYLE_PM_LAYOUTTOPMARGIN);
layout.marginLeft = Style.pixelMetric(Style.QSTYLE_PM_LAYOUTLEFTMARGIN);
layout.marginRight = Style.pixelMetric(Style.QSTYLE_PM_LAYOUTRIGHTMARGIN);
layout.spacing = Style.pixelMetric(Style.QSTYLE_PM_LAYOUTVERTICALSPACING);
comp.setLayout(layout);
eswtScrolledText = new ScrolledTextComposite(comp, comp.getVerticalBar());
eswtImgLabel = new LabelExtension(comp, SWT.NONE);
FormData imageLD = new FormData();
imageLD.right = new FormAttachment(100);
imageLD.top = new FormAttachment(0);
eswtImgLabel.setLayoutData(imageLD);
FormData scrolledTextLD = new FormData();
scrolledTextLD.left = new FormAttachment(0);
scrolledTextLD.top = new FormAttachment(0);
scrolledTextLD.right = new FormAttachment(eswtImgLabel);
eswtScrolledText.setLayoutData(scrolledTextLD);
eswtProgbarLD = new FormData();
eswtProgbarLD.left = new FormAttachment(0);
eswtProgbarLD.right = new FormAttachment(100);
eswtProgbarLD.bottom = new FormAttachment(100);
eswtUpdateProgressbar(comp, false, false);
return comp;
}