--- /dev/null
+package net.sourceforge.phpdt.internal.ui.dialogs;
+
+import java.util.Arrays;
+
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Button;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Shell;
+import org.eclipse.ui.dialogs.SelectionDialog;
+
+
+/**
+ * An abstract base class for dialogs with a status bar and ok/cancel buttons.
+ * The status message must be passed over as StatusInfo object and can be
+ * an error, warning or ok. The OK button is enabled or disabled depending
+ * on the status.
+ */
+public abstract class SelectionStatusDialog extends SelectionDialog {
+
+ private MessageLine fStatusLine;
+ private IStatus fLastStatus;
+ private Image fImage;
+ private boolean fStatusLineAboveButtons= false;
+
+ /**
+ * Creates an instance of a <code>SelectionStatusDialog</code>.
+ */
+ public SelectionStatusDialog(Shell parent) {
+ super(parent);
+ }
+
+ /**
+ * Controls whether status line appears to the left of the buttons (default)
+ * or above them.
+ *
+ * @param aboveButtons if <code>true</code> status line is placed above buttons; if
+ * <code>false</code> to the right
+ */
+ public void setStatusLineAboveButtons(boolean aboveButtons) {
+ fStatusLineAboveButtons= aboveButtons;
+ }
+
+ /**
+ * Sets the image for this dialog.
+ * @param image the image.
+ */
+ public void setImage(Image image) {
+ fImage= image;
+ }
+
+ /**
+ * Returns the first element from the list of results. Returns <code>null</code>
+ * if no element has been selected.
+ *
+ * @return the first result element if one exists. Otherwise <code>null</code> is
+ * returned.
+ */
+ public Object getFirstResult() {
+ Object[] result= getResult();
+ if (result == null || result.length == 0)
+ return null;
+ return result[0];
+ }
+
+ /**
+ * Sets a result element at the given position.
+ */
+ protected void setResult(int position, Object element) {
+ Object[] result= getResult();
+ result[position]= element;
+ setResult(Arrays.asList(result));
+ }
+
+ /**
+ * Compute the result and return it.
+ */
+ protected abstract void computeResult();
+
+ protected void configureShell(Shell shell) {
+ super.configureShell(shell);
+ if (fImage != null)
+ shell.setImage(fImage);
+ }
+
+ /**
+ * Update the dialog's status line to reflect the given status. It is safe to call
+ * this method before the dialog has been opened.
+ */
+ protected void updateStatus(IStatus status) {
+ fLastStatus= status;
+ if (fStatusLine != null && !fStatusLine.isDisposed()) {
+ updateButtonsEnableState(status);
+ fStatusLine.setErrorStatus(status);
+ }
+ }
+
+ /**
+ * Update the status of the ok button to reflect the given status. Subclasses
+ * may override this method to update additional buttons.
+ */
+ protected void updateButtonsEnableState(IStatus status) {
+ Button okButton= getOkButton();
+ if (okButton != null && !okButton.isDisposed())
+ okButton.setEnabled(!status.matches(IStatus.ERROR));
+ }
+
+ protected void okPressed() {
+ computeResult();
+ super.okPressed();
+ }
+
+ public void create() {
+ super.create();
+ if (fLastStatus != null)
+ updateStatus(fLastStatus);
+ }
+
+ protected Control createButtonBar(Composite parent) {
+ Composite composite= new Composite(parent, SWT.NULL);
+ GridLayout layout= new GridLayout();
+ if (fStatusLineAboveButtons) {
+ layout.marginWidth= 5;
+ } else {
+ layout.numColumns= 2;
+ }
+ layout.marginHeight= 0; layout.marginWidth= 0;
+ composite.setLayout(layout);
+ composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
+
+ fStatusLine= new MessageLine(composite);
+ fStatusLine.setAlignment(SWT.LEFT);
+ fStatusLine.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
+ fStatusLine.setErrorStatus(null);
+
+ GridData gd= new GridData(GridData.FILL_HORIZONTAL);
+ gd.horizontalIndent= convertWidthInCharsToPixels(1);
+ fStatusLine.setLayoutData(gd);
+
+ super.createButtonBar(composite);
+ return composite;
+ }
+
+}
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