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/*******************************************************************************
* Copyright (c) 2000, 2004 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jdt.internal.ui.dialogs;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.jface.operation.IRunnableContext;
import org.eclipse.ui.help.WorkbenchHelp;
import org.eclipse.jdt.core.search.IJavaSearchScope;
import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
import org.eclipse.jdt.internal.ui.JavaPlugin;
/**
* A dialog to select a type from a list of types. The selected type will be
* opened in the editor.
*/
public class OpenTypeSelectionDialog extends TypeSelectionDialog {
public static final int IN_HIERARCHY= IDialogConstants.CLIENT_ID + 1;
/** The dialog location. */
private Point fLocation;
/** The dialog size. */
private Point fSize;
/**
* Constructs an instance of <code>OpenTypeSelectionDialog</code>.
* @param parent the parent shell.
* @param context the context.
* @param elementKinds <code>IJavaSearchConstants.CLASS</code>, <code>IJavaSearchConstants.INTERFACE</code>
* or <code>IJavaSearchConstants.TYPE</code>
* @param scope the java search scope.
*/
public OpenTypeSelectionDialog(Shell parent, IRunnableContext context, int elementKinds, IJavaSearchScope scope) {
super(parent, context, elementKinds, scope);
}
/*
* @see org.eclipse.jface.window.Window#configureShell(Shell)
*/
protected void configureShell(Shell newShell) {
super.configureShell(newShell);
WorkbenchHelp.setHelp(newShell, IJavaHelpContextIds.OPEN_TYPE_DIALOG);
}
/*
* @see Window#close()
*/
public boolean close() {
writeSettings();
return super.close();
}
/*
* @see org.eclipse.jface.window.Window#createContents(org.eclipse.swt.widgets.Composite)
*/
protected Control createContents(Composite parent) {
Control control= super.createContents(parent);
readSettings();
return control;
}
/* (non-Javadoc)
* @see org.eclipse.jface.window.Window#getInitialSize()
*/
protected Point getInitialSize() {
Point result= super.getInitialSize();
if (fSize != null) {
result.x= Math.max(result.x, fSize.x);
result.y= Math.max(result.y, fSize.y);
Rectangle display= getShell().getDisplay().getClientArea();
result.x= Math.min(result.x, display.width);
result.y= Math.min(result.y, display.height);
}
return result;
}
/* (non-Javadoc)
* @see org.eclipse.jface.window.Window#getInitialLocation(org.eclipse.swt.graphics.Point)
*/
protected Point getInitialLocation(Point initialSize) {
Point result= super.getInitialLocation(initialSize);
if (fLocation != null) {
result.x= fLocation.x;
result.y= fLocation.y;
Rectangle display= getShell().getDisplay().getClientArea();
int xe= result.x + initialSize.x;
if (xe > display.width) {
result.x-= xe - display.width;
}
int ye= result.y + initialSize.y;
if (ye > display.height) {
result.y-= ye - display.height;
}
}
return result;
}
/**
* Initializes itself from the dialog settings with the same state
* as at the previous invocation.
*/
private void readSettings() {
IDialogSettings s= getDialogSettings();
try {
int x= s.getInt("x"); //$NON-NLS-1$
int y= s.getInt("y"); //$NON-NLS-1$
fLocation= new Point(x, y);
int width= s.getInt("width"); //$NON-NLS-1$
int height= s.getInt("height"); //$NON-NLS-1$
fSize= new Point(width, height);
} catch (NumberFormatException e) {
fLocation= null;
fSize= null;
}
}
/**
* Stores it current configuration in the dialog store.
*/
private void writeSettings() {
IDialogSettings s= getDialogSettings();
Point location= getShell().getLocation();
s.put("x", location.x); //$NON-NLS-1$
s.put("y", location.y); //$NON-NLS-1$
Point size= getShell().getSize();
s.put("width", size.x); //$NON-NLS-1$
s.put("height", size.y); //$NON-NLS-1$
}
/**
* Returns the dialog settings object used to share state
* between several find/replace dialogs.
*
* @return the dialog settings to be used
*/
private IDialogSettings getDialogSettings() {
IDialogSettings settings= JavaPlugin.getDefault().getDialogSettings();
String sectionName= getClass().getName();
IDialogSettings subSettings= settings.getSection(sectionName);
if (subSettings == null)
subSettings= settings.addNewSection(sectionName);
return subSettings;
}
}
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