/* ********************************************************************** **
** Copyright notice **
** **
** (c) 2005-2009 RSSOwl Development Team **
** http://www.rssowl.org/ **
** **
** All rights reserved **
** **
** This program and the accompanying materials are made available under **
** the terms of the Eclipse Public License v1.0 which accompanies this **
** distribution, and is available at: **
** http://www.rssowl.org/legal/epl-v10.html **
** **
** A copy is found in the file epl-v10.html and important notices to the **
** license from the team is found in the textfile LICENSE.txt distributed **
** in this package. **
** **
** This copyright notice MUST APPEAR in all copies of the file! **
** **
** Contributors: **
** RSSOwl Development Team - initial API and implementation **
** **
** ********************************************************************** */
package org.rssowl.ui.internal.dialogs;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.fieldassist.ContentProposalAdapter;
import org.eclipse.jface.fieldassist.SimpleContentProposalProvider;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.resource.LocalResourceManager;
import org.eclipse.jface.resource.ResourceManager;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.RGB;
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.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.rssowl.core.persist.ILabel;
import org.rssowl.core.persist.dao.DynamicDAO;
import org.rssowl.core.persist.dao.ICategoryDAO;
import org.rssowl.core.util.CoreUtils;
import org.rssowl.core.util.Pair;
import org.rssowl.core.util.StringUtils;
import org.rssowl.ui.internal.OwlUI;
import org.rssowl.ui.internal.util.ColorPicker;
import org.rssowl.ui.internal.util.JobRunner;
import org.rssowl.ui.internal.util.LayoutUtils;
import java.util.Collection;
import java.util.Comparator;
import java.util.Set;
import java.util.TreeSet;
/**
* A Dialog to add or edit Labels.
*
* @author bpasero
*/
public class LabelDialog extends Dialog {
/* Minimum Dialog Width */
private static final int MIN_DIALOG_WIDTH = 300;
private final DialogMode fMode;
private final ILabel fExistingLabel;
private Text fNameInput;
private String fName;
private Collection<ILabel> fAllLabels;
private ColorPicker fColorPicker;
private Label fInfoImg;
private Label fInfoText;
private ResourceManager fResources = new LocalResourceManager(JFaceResources.getResources());
/** Supported Modes of the Label Dialog */
public enum DialogMode {
/** Add Label */
ADD,
/** Edit Label */
EDIT,
};
/**
* @param parentShell
* @param mode
* @param label
*/
public LabelDialog(Shell parentShell, DialogMode mode, ILabel label) {
super(parentShell);
fMode = mode;
fExistingLabel = label;
fAllLabels = CoreUtils.loadSortedLabels();
}
/**
* @return the name of the label.
*/
public String getName() {
return fName != null ? fName.trim() : null;
}
/**
* @return the color of the label as {@link RGB}.
*/
public RGB getColor() {
return fColorPicker.getColor();
}
/*
* @see org.eclipse.jface.dialogs.Dialog#close()
*/
@Override
public boolean close() {
fResources.dispose();
return super.close();
}
/*
* @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
*/
@Override
protected Control createDialogArea(Composite parent) {
Composite composite = new Composite(parent, SWT.NONE);
composite.setLayout(LayoutUtils.createGridLayout(2, 10, 10, 5, 6, false));
composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
/* Name */
if (fMode == DialogMode.ADD || fMode == DialogMode.EDIT) {
Label nameLabel = new Label(composite, SWT.NONE);
nameLabel.setText(Messages.LabelDialog_NAME);
fNameInput = new Text(composite, SWT.BORDER | SWT.SINGLE);
fNameInput.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false));
if (fExistingLabel != null) {
fNameInput.setText(fExistingLabel.getName());
fNameInput.selectAll();
fNameInput.setFocus();
}
fNameInput.addModifyListener(new ModifyListener() {
public void modifyText(ModifyEvent e) {
onModifyName();
}
});
/* Add auto-complete for Labels taken from existing Categories */
final Pair<SimpleContentProposalProvider, ContentProposalAdapter> pair = OwlUI.hookAutoComplete(fNameInput, null, true, false);
/* Load proposals in the Background */
JobRunner.runInBackgroundThread(100, new Runnable() {
public void run() {
if (!fNameInput.isDisposed()) {
Set<String> values = new TreeSet<String>(new Comparator<String>() {
public int compare(String o1, String o2) {
return o1.compareToIgnoreCase(o2);
}
});
Set<String> categoryNames = DynamicDAO.getDAO(ICategoryDAO.class).loadAllNames();
categoryNames = StringUtils.replaceAll(categoryNames, ",", " "); // Comma not allowed for Labels //$NON-NLS-1$ //$NON-NLS-2$
values.addAll(categoryNames);
/* Apply Proposals */
if (!fNameInput.isDisposed())
OwlUI.applyAutoCompleteProposals(values, pair.getFirst(), pair.getSecond(), false);
}
}
});
}
/* Color */
if (fMode == DialogMode.ADD || fMode == DialogMode.EDIT) {
Label nameLabel = new Label(composite, SWT.NONE);
nameLabel.setText(Messages.LabelDialog_COLOR);
fColorPicker = new ColorPicker(composite, SWT.FLAT);
if (fExistingLabel != null)
fColorPicker.setColor(OwlUI.getRGB(fExistingLabel));
}
/* Info Container */
Composite infoContainer = new Composite(composite, SWT.None);
infoContainer.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false, 2, 1));
infoContainer.setLayout(LayoutUtils.createGridLayout(2, 0, 0));
((GridLayout) infoContainer.getLayout()).marginTop = 15;
fInfoImg = new Label(infoContainer, SWT.NONE);
fInfoImg.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false));
fInfoText = new Label(infoContainer, SWT.WRAP);
fInfoText.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
showInfo();
applyDialogFont(composite);
return composite;
}
private void showInfo() {
switch (fMode) {
case ADD:
fInfoText.setText(Messages.LabelDialog_ENTER_NEW_LABEL);
break;
case EDIT:
fInfoText.setText(Messages.LabelDialog_EDIT_LABEL_INFO);
break;
}
fInfoImg.setImage(OwlUI.getImage(fResources, "icons/obj16/info.gif")); //$NON-NLS-1$
fInfoImg.getParent().layout();
}
private void showError(String msg) {
fInfoText.setText(msg);
fInfoImg.setImage(OwlUI.getImage(fResources, "icons/obj16/error.gif")); //$NON-NLS-1$
fInfoImg.getParent().layout();
}
private void onModifyName() {
boolean labelExists = false;
String inputValue = fNameInput.getText().trim().toLowerCase();
/* Disallow comma in the Name for a Label */
if (inputValue.contains(",")) { //$NON-NLS-1$
getButton(IDialogConstants.OK_ID).setEnabled(false);
showError(Messages.LabelDialog_ERROR_COMMA);
return;
}
/* Check if Label exists already */
for (ILabel label : fAllLabels) {
if (label.getName().toLowerCase().equals(inputValue) && label != fExistingLabel) {
labelExists = true;
break;
}
}
/* Disable OK Button if Label exists */
getButton(IDialogConstants.OK_ID).setEnabled(!labelExists && fNameInput.getText().length() > 0);
if (labelExists)
showError(Messages.LabelDialog_LABEL_EXISTS);
else
showInfo();
}
/*
* @see org.eclipse.jface.dialogs.Dialog#createButtonBar(org.eclipse.swt.widgets.Composite)
*/
@Override
protected Control createButtonBar(Composite parent) {
/* Spacer */
new Label(parent, SWT.SEPARATOR | SWT.HORIZONTAL).setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false, 2, 1));
Control control = super.createButtonBar(parent);
/* Udate enablement */
getButton(IDialogConstants.OK_ID).setEnabled(fNameInput.getText().length() > 0);
return control;
}
/*
* @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell)
*/
@Override
protected void configureShell(Shell newShell) {
super.configureShell(newShell);
switch (fMode) {
case ADD:
newShell.setText(Messages.LabelDialog_NEW_LABEL);
break;
case EDIT:
newShell.setText(Messages.LabelDialog_EDIT_LABEL);
break;
}
}
/*
* @see org.eclipse.jface.dialogs.Dialog#okPressed()
*/
@Override
protected void okPressed() {
if (fNameInput != null)
fName = fNameInput.getText();
super.okPressed();
}
/*
* @see org.eclipse.jface.dialogs.Dialog#getInitialSize()
*/
@Override
protected Point getInitialSize() {
Point shellSize = super.getInitialSize();
return new Point(Math.max(convertHorizontalDLUsToPixels(MIN_DIALOG_WIDTH), shellSize.x), shellSize.y);
}
}