--- /dev/null
+package net.sourceforge.phpdt.internal.ui.dialogs;
+
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.jface.dialogs.Dialog;
+import org.eclipse.jface.dialogs.IDialogConstants;
+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;
+
+/**
+ * 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 StatusDialog extends Dialog {
+
+ private Button fOkButton;
+
+ private MessageLine fStatusLine;
+
+ private IStatus fLastStatus;
+
+ private String fTitle;
+
+ private Image fImage;
+
+ private boolean fStatusLineAboveButtons;
+
+ /**
+ * Creates an instane of a status dialog.
+ */
+ public StatusDialog(Shell parent) {
+ super(parent);
+ fStatusLineAboveButtons = false;
+ }
+
+ /**
+ * Specifies 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;
+ }
+
+ /**
+ * Update the dialog's status line to reflect the given status. It is save
+ * 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);
+ }
+ }
+
+ /**
+ * Returns the last status.
+ */
+ public IStatus getStatus() {
+ return fLastStatus;
+ }
+
+ /**
+ * Updates the status of the ok button to reflect the given status.
+ * Subclasses may override this method to update additional buttons.
+ *
+ * @param status
+ * the status.
+ */
+ protected void updateButtonsEnableState(IStatus status) {
+ if (fOkButton != null && !fOkButton.isDisposed())
+ fOkButton.setEnabled(!status.matches(IStatus.ERROR));
+ }
+
+ /*
+ * @see Window#create(Shell)
+ */
+ protected void configureShell(Shell shell) {
+ super.configureShell(shell);
+ if (fTitle != null)
+ shell.setText(fTitle);
+ }
+
+ /*
+ * @see Window#create()
+ */
+ public void create() {
+ super.create();
+ if (fLastStatus != null) {
+ // policy: dialogs are not allowed to come up with an error message
+ if (fLastStatus.matches(IStatus.ERROR)) {
+ StatusInfo status = new StatusInfo();
+ status.setError(""); //$NON-NLS-1$
+ fLastStatus = status;
+ }
+ updateStatus(fLastStatus);
+ }
+ }
+
+ /*
+ * @see Dialog#createButtonsForButtonBar(Composite)
+ */
+ protected void createButtonsForButtonBar(Composite parent) {
+ fOkButton = createButton(parent, IDialogConstants.OK_ID,
+ IDialogConstants.OK_LABEL, true);
+ createButton(parent, IDialogConstants.CANCEL_ID,
+ IDialogConstants.CANCEL_LABEL, false);
+ }
+
+ /*
+ * @see Dialog#createButtonBar(Composite)
+ */
+ protected Control createButtonBar(Composite parent) {
+ Composite composite = new Composite(parent, SWT.NULL);
+ GridLayout layout = new GridLayout();
+ layout.numColumns = 1;
+ layout.marginHeight = 0;
+ layout.marginWidth = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN);
+ 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); //$NON-NLS-1$
+
+ super.createButtonBar(composite);
+ return composite;
+ }
+
+ /**
+ * Sets the title for this dialog.
+ *
+ * @param title
+ * the title.
+ */
+ public void setTitle(String title) {
+ fTitle = title != null ? title : ""; //$NON-NLS-1$
+ Shell shell = getShell();
+ if ((shell != null) && !shell.isDisposed())
+ shell.setText(fTitle);
+ }
+
+ /**
+ * Sets the image for this dialog.
+ *
+ * @param image
+ * the image.
+ */
+ public void setImage(Image image) {
+ fImage = image;
+ Shell shell = getShell();
+ if ((shell != null) && !shell.isDisposed())
+ shell.setImage(fImage);
+ }
+
+}
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