+ * There is requirement for 1/1 mapping between widgets and form parts. A widget + * like Section can be a part by itself, but a number of widgets can join around + * one form part. + *
+ * Note to developers: this class is left public to allow its use beyond the
+ * original intention (inside a multi-page editor's page). You should limit the
+ * use of this class to make new instances inside a form container (wizard page,
+ * dialog etc.). Clients that need access to the class should not do it
+ * directly. Instead, they should do it through IManagedForm interface as much
+ * as possible.
+ *
+ * @since 1.0
+ */
+public class ManagedForm implements IManagedForm {
+ private Object input;
+
+ private ScrolledComposite form;
+
+ private FormToolkit toolkit;
+
+ private Object container;
+
+ private boolean ownsToolkit;
+
+ private boolean initialized;
+
+ private Vector parts = new Vector();
+
+ /**
+ * Creates a managed form in the provided parent. Form toolkit and widget
+ * will be created and owned by this object.
+ *
+ * @param parent
+ * the parent widget
+ */
+ public ManagedForm(Composite parent) {
+ toolkit = new FormToolkit(parent.getDisplay());
+ ownsToolkit = true;
+ form = toolkit.createScrolledForm(parent);
+
+ }
+
+ /**
+ * Creates a managed form that will use the provided toolkit and
+ *
+ * @param toolkit
+ * @param form
+ */
+ public ManagedForm(FormToolkit toolkit, ScrolledComposite form) {
+ this.form = form;
+ this.toolkit = toolkit;
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.eclipse.ui.forms.IManagedForm#addPart(org.eclipse.ui.forms.IFormPart)
+ */
+ public void addPart(IFormPart part) {
+ parts.add(part);
+ part.initialize(this);
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.eclipse.ui.forms.IManagedForm#removePart(org.eclipse.ui.forms.IFormPart)
+ */
+ public void removePart(IFormPart part) {
+ parts.remove(part);
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.eclipse.ui.forms.IManagedForm#getParts()
+ */
+ public IFormPart[] getParts() {
+ return (IFormPart[]) parts.toArray(new IFormPart[parts.size()]);
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.eclipse.ui.forms.IManagedForm#getToolkit()
+ */
+ public FormToolkit getToolkit() {
+ return toolkit;
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.eclipse.ui.forms.IManagedForm#getForm()
+ */
+ public ScrolledComposite getForm() {
+ return form;
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.eclipse.ui.forms.IManagedForm#reflow(boolean)
+ */
+ public void reflow(boolean changed) {
+// form.reflow(changed);
+ }
+
+ /**
+ * A part can use this method to notify other parts that implement
+ * IPartSelectionListener about selection changes.
+ *
+ * @param part
+ * the part that broadcasts the selection
+ * @param selection
+ * the selection in the part
+ * @see IPartSelectionListener
+ */
+ public void fireSelectionChanged(IFormPart part, ISelection selection) {
+ for (int i = 0; i < parts.size(); i++) {
+ IFormPart cpart = (IFormPart) parts.get(i);
+ if (part.equals(cpart))
+ continue;
+// if (cpart instanceof IPartSelectionListener) {
+// ((IPartSelectionListener) cpart).selectionChanged(part,
+// selection);
+// }
+ }
+ }
+
+ /**
+ * Initializes the form by looping through the managed parts and
+ * initializing them. Has no effect if already called once.
+ */
+ public void initialize() {
+ if (initialized)
+ return;
+ for (int i = 0; i < parts.size(); i++) {
+ IFormPart part = (IFormPart) parts.get(i);
+ part.initialize(this);
+ }
+ initialized = true;
+ }
+
+ /**
+ * Disposes all the parts in this form.
+ */
+ public void dispose() {
+ for (int i = 0; i < parts.size(); i++) {
+ IFormPart part = (IFormPart) parts.get(i);
+ part.dispose();
+ }
+ if (ownsToolkit) {
+ toolkit.dispose();
+ }
+ }
+
+ /**
+ * Refreshes the form by refreshes all the stale parts. Since 3.1, this
+ * method is performed on a UI thread when called from another thread so it
+ * is not needed to wrap the call in Display.syncExec or
+ * asyncExec.
+ */
+ public void refresh() {
+ Thread t = Thread.currentThread();
+ Thread dt = toolkit.getColors().getDisplay().getThread();
+ if (t.equals(dt))
+ doRefresh();
+ else {
+ toolkit.getColors().getDisplay().asyncExec(new Runnable() {
+ public void run() {
+ doRefresh();
+ }
+ });
+ }
+ }
+
+ private void doRefresh() {
+ int nrefreshed = 0;
+ for (int i = 0; i < parts.size(); i++) {
+ IFormPart part = (IFormPart) parts.get(i);
+ if (part.isStale()) {
+ part.refresh();
+ nrefreshed++;
+ }
+ }
+// if (nrefreshed > 0)
+// form.reflow(true);
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.eclipse.ui.forms.IManagedForm#commit(boolean)
+ */
+ public void commit(boolean onSave) {
+ for (int i = 0; i < parts.size(); i++) {
+ IFormPart part = (IFormPart) parts.get(i);
+ if (part.isDirty())
+ part.commit(onSave);
+ }
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.eclipse.ui.forms.IManagedForm#setInput(java.lang.Object)
+ */
+ public boolean setInput(Object input) {
+ boolean pageResult = false;
+
+ this.input = input;
+ for (int i = 0; i < parts.size(); i++) {
+ IFormPart part = (IFormPart) parts.get(i);
+ boolean result = part.setFormInput(input);
+ if (result)
+ pageResult = true;
+ }
+ return pageResult;
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.eclipse.ui.forms.IManagedForm#getInput()
+ */
+ public Object getInput() {
+ return input;
+ }
+
+ /**
+ * Transfers the focus to the first form part.
+ */
+ public void setFocus() {
+ if (parts.size() > 0) {
+ IFormPart part = (IFormPart) parts.get(0);
+ part.setFocus();
+ }
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.eclipse.ui.forms.IManagedForm#isDirty()
+ */
+ public boolean isDirty() {
+ for (int i = 0; i < parts.size(); i++) {
+ IFormPart part = (IFormPart) parts.get(i);
+ if (part.isDirty())
+ return true;
+ }
+ return false;
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.eclipse.ui.forms.IManagedForm#isStale()
+ */
+ public boolean isStale() {
+ for (int i = 0; i < parts.size(); i++) {
+ IFormPart part = (IFormPart) parts.get(i);
+ if (part.isStale())
+ return true;
+ }
+ return false;
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.eclipse.ui.forms.IManagedForm#dirtyStateChanged()
+ */
+ public void dirtyStateChanged() {
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.eclipse.ui.forms.IManagedForm#staleStateChanged()
+ */
+ public void staleStateChanged() {
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.eclipse.ui.forms.IManagedForm#getContainer()
+ */
+ public Object getContainer() {
+ return container;
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.eclipse.ui.forms.IManagedForm#setContainer(java.lang.Object)
+ */
+ public void setContainer(Object container) {
+ this.container = container;
+ }
+
+ /* (non-Javadoc)
+ * @see org.eclipse.ui.forms.IManagedForm#getMessageManager()
+ */
+// public IMessageManager getMessageManager() {
+// return form.getMessageManager();
+// }
+}