+++ /dev/null
-package org.argeo.eclipse.ui.dialogs;
-
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-import org.argeo.eclipse.ui.EclipseUiException;
-import org.eclipse.swt.SWT;
-import org.eclipse.swt.events.FocusEvent;
-import org.eclipse.swt.events.FocusListener;
-import org.eclipse.swt.events.ShellAdapter;
-import org.eclipse.swt.events.ShellEvent;
-import org.eclipse.swt.graphics.Point;
-import org.eclipse.swt.graphics.Rectangle;
-import org.eclipse.swt.layout.GridData;
-import org.eclipse.swt.layout.GridLayout;
-import org.eclipse.swt.widgets.Composite;
-import org.eclipse.swt.widgets.Control;
-import org.eclipse.swt.widgets.Display;
-import org.eclipse.swt.widgets.Shell;
-
-/** Generic lightweight dialog, not based on JFace. */
-@Deprecated
-public class LightweightDialog {
- private final static Log log = LogFactory.getLog(LightweightDialog.class);
-
- // must be the same value as org.eclipse.jface.window.Window#OK
- public final static int OK = 0;
- // must be the same value as org.eclipse.jface.window.Window#CANCEL
- public final static int CANCEL = 1;
-
- private Shell parentShell;
- private Shell backgroundShell;
- private Shell foregoundShell;
-
- private Integer returnCode = null;
- private boolean block = true;
-
- private String title;
-
- /** Tries to find a display */
- private static Display getDisplay() {
- try {
- Display display = Display.getCurrent();
- if (display != null)
- return display;
- else
- return Display.getDefault();
- } catch (Exception e) {
- return Display.getCurrent();
- }
- }
-
- public LightweightDialog(Shell parentShell) {
- this.parentShell = parentShell;
- }
-
- public int open() {
- if (foregoundShell != null)
- throw new EclipseUiException("There is already a shell");
- backgroundShell = new Shell(parentShell, SWT.ON_TOP);
- backgroundShell.setFullScreen(true);
- // if (parentShell != null) {
- // backgroundShell.setBounds(parentShell.getBounds());
- // } else
- // backgroundShell.setMaximized(true);
- backgroundShell.setAlpha(128);
- backgroundShell.setBackground(getDisplay().getSystemColor(SWT.COLOR_BLACK));
- foregoundShell = new Shell(backgroundShell, SWT.NO_TRIM | SWT.ON_TOP);
- if (title != null)
- setTitle(title);
- foregoundShell.setLayout(new GridLayout());
- foregoundShell.setSize(getInitialSize());
- createDialogArea(foregoundShell);
- // shell.pack();
- // shell.layout();
-
- Rectangle shellBounds = parentShell != null ? parentShell.getBounds() : Display.getCurrent().getBounds();// RAP
- Point dialogSize = foregoundShell.getSize();
- int x = shellBounds.x + (shellBounds.width - dialogSize.x) / 2;
- int y = shellBounds.y + (shellBounds.height - dialogSize.y) / 2;
- foregoundShell.setLocation(x, y);
-
- foregoundShell.addShellListener(new ShellAdapter() {
- private static final long serialVersionUID = -2701270481953688763L;
-
- @Override
- public void shellDeactivated(ShellEvent e) {
- if (hasChildShells())
- return;
- if (returnCode == null)// not yet closed
- closeShell(CANCEL);
- }
-
- @Override
- public void shellClosed(ShellEvent e) {
- notifyClose();
- }
-
- });
-
- backgroundShell.open();
- foregoundShell.open();
- // after the foreground shell has been opened
- backgroundShell.addFocusListener(new FocusListener() {
- private static final long serialVersionUID = 3137408447474661070L;
-
- @Override
- public void focusLost(FocusEvent event) {
- }
-
- @Override
- public void focusGained(FocusEvent event) {
- if (hasChildShells())
- return;
- if (returnCode == null)// not yet closed
- closeShell(CANCEL);
- }
- });
-
- if (block) {
- block();
- }
- if (returnCode == null)
- returnCode = OK;
- return returnCode;
- }
-
- public void block() {
- try {
- runEventLoop(foregoundShell);
- } catch (ThreadDeath t) {
- returnCode = CANCEL;
- if (log.isTraceEnabled())
- log.error("Thread death, canceling dialog", t);
- } catch (Throwable t) {
- returnCode = CANCEL;
- log.error("Cannot open blocking lightweight dialog", t);
- }
- }
-
- private boolean hasChildShells() {
- if (foregoundShell == null)
- return false;
- return foregoundShell.getShells().length != 0;
- }
-
- // public synchronized int openAndWait() {
- // open();
- // while (returnCode == null)
- // try {
- // wait(100);
- // } catch (InterruptedException e) {
- // // silent
- // }
- // return returnCode;
- // }
-
- private synchronized void notifyClose() {
- if (returnCode == null)
- returnCode = CANCEL;
- notifyAll();
- }
-
- protected void closeShell(int returnCode) {
- this.returnCode = returnCode;
- if (CANCEL == returnCode)
- onCancel();
- if (foregoundShell != null && !foregoundShell.isDisposed()) {
- foregoundShell.close();
- foregoundShell.dispose();
- foregoundShell = null;
- }
-
- if (backgroundShell != null && !backgroundShell.isDisposed()) {
- backgroundShell.close();
- backgroundShell.dispose();
- }
- }
-
- protected Point getInitialSize() {
- // if (exception != null)
- // return new Point(800, 600);
- // else
- return new Point(600, 400);
- }
-
- protected Control createDialogArea(Composite parent) {
- Composite dialogarea = new Composite(parent, SWT.NONE);
- dialogarea.setLayout(new GridLayout());
- dialogarea.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
- return dialogarea;
- }
-
- protected Shell getBackgroundShell() {
- return backgroundShell;
- }
-
- protected Shell getForegoundShell() {
- return foregoundShell;
- }
-
- public void setBlockOnOpen(boolean shouldBlock) {
- block = shouldBlock;
- }
-
- public void pack() {
- foregoundShell.pack();
- }
-
- private void runEventLoop(Shell loopShell) {
- Display display;
- if (foregoundShell == null) {
- display = Display.getCurrent();
- } else {
- display = loopShell.getDisplay();
- }
-
- while (loopShell != null && !loopShell.isDisposed()) {
- try {
- if (!display.readAndDispatch()) {
- display.sleep();
- }
- } catch (UnsupportedOperationException e) {
- throw e;
- } catch (Throwable e) {
- handleException(e);
- }
- }
- if (!display.isDisposed())
- display.update();
- }
-
- protected void handleException(Throwable t) {
- if (t instanceof ThreadDeath) {
- // Don't catch ThreadDeath as this is a normal occurrence when
- // the thread dies
- throw (ThreadDeath) t;
- }
- // Try to keep running.
- t.printStackTrace();
- }
-
- /** @return false, if the dialog should not be closed. */
- protected boolean onCancel() {
- return true;
- }
-
- public void setTitle(String title) {
- this.title = title;
- if (title != null && getForegoundShell() != null)
- getForegoundShell().setText(title);
- }
-
- public Integer getReturnCode() {
- return returnCode;
- }
-
-}
\ No newline at end of file
projects / lgpl / argeo-commons.git / blobdiff