@Override
public void startContainerLayout(C container, M metawidget) {
super.startContainerLayout(container, metawidget);
State state = getState(container, metawidget);
state.currentSections = null;
}
@Override
public void layoutWidget(
W widget, String elementName, Map<String, String> attributes, C container, M metawidget) {
// If our delegate is itself a NestedSectionLayoutDecorator, strip the section
State state = getState(container, metawidget);
if (getDelegate() instanceof NestedSectionLayoutDecorator<?, ?, ?>) {
String section = stripSection(attributes);
// Stay where we are?
//
// Note: Ignore empty stubs. Do not create a new section in case it ends up being empty
if (isIgnored(widget)
|| section == null
|| (state.currentSections != null && section.equals(state.currentSections[0]))) {
super.layoutWidget(widget, elementName, attributes, container, metawidget);
return;
}
// End nested LayoutDecorator's current section
if (state.currentSections != null && !section.equals(state.currentSections[0])) {
super.endContainerLayout(container, metawidget);
}
state.currentSections = new String[] {section};
// Add a heading
if (!"".equals(section)) {
addSectionWidget(section, 0, container, metawidget);
}
} else {
String[] sections = getSections(attributes);
// Stay where we are?
//
// Note: Ignore empty stubs. Do not create a new section in case it ends up being empty
if (isIgnored(widget)
|| sections.length == 0
|| Arrays.equals(sections, state.currentSections)) {
super.layoutWidget(widget, elementName, attributes, container, metawidget);
return;
}
// For each of the new sections...
for (int level = 0; level < sections.length; level++) {
String section = sections[level];
// ...that are different from our current...
if ("".equals(section)) {
continue;
}
if (state.currentSections != null
&& level < state.currentSections.length
&& section.equals(state.currentSections[level])) {
continue;
}
// ...add a heading
//
// Note: we cannot stop/start the delegate layout here. It is tempting, but remember
// addSectionWidget needs to use the delegate. If you stop/add section heading/start
// the delegate, who is laying out the section heading?
addSectionWidget(section, level, container, metawidget);
}
state.currentSections = sections;
}
// Add component as normal
super.layoutWidget(widget, elementName, attributes, container, metawidget);
}
public Composite startBuildWidget(
String elementName,
Map<String, String> attributes,
Composite container,
SwtMetawidget metawidget) {
// If our delegate is itself a NestedSectionLayoutDecorator, strip the section
State state = getState(container, metawidget);
if (getDelegate() instanceof NestedSectionLayoutDecorator) {
String section = stripSection(attributes);
// Stay where we are?
if (section == null
|| (state.currentSections != null && section.equals(state.currentSections[0]))) {
return delegateStartBuildWidget(elementName, attributes, container, metawidget);
}
// End nested LayoutDecorator's current section
if (state.currentSections != null && !section.equals(state.currentSections[0])) {
super.endContainerLayout(container, metawidget);
}
state.currentSections = new String[] {section};
// Add a heading
if (!"".equals(section)) {
addSectionWidget(section, 0, container, metawidget);
}
} else {
String[] sections = getSections(attributes);
// Stay where we are?
if (sections.length == 0 || Arrays.equals(sections, state.currentSections)) {
return delegateStartBuildWidget(elementName, attributes, container, metawidget);
}
// For each of the new sections...
for (int level = 0; level < sections.length; level++) {
String section = sections[level];
// ...that are different from our current...
if ("".equals(section)) {
continue;
}
if (state.currentSections != null
&& level < state.currentSections.length
&& section.equals(state.currentSections[level])) {
continue;
}
// ...add a heading
addSectionWidget(section, level, container, metawidget);
}
state.currentSections = sections;
}
// Add component as normal
return delegateStartBuildWidget(elementName, attributes, container, metawidget);
}