Java tutorial
/****************************************************************************** * Copyright (C) 2013 Fabio Zadrozny * * 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.eclipse.org/legal/epl-v10.html * * Contributors: * Fabio Zadrozny <fabiofz@gmail.com> - initial API and implementation ******************************************************************************/ package org.python.pydev.ui.wizards.files; import java.util.ArrayList; import java.util.Arrays; import java.util.TreeMap; import org.eclipse.jface.dialogs.IDialogSettings; import org.eclipse.jface.preference.PreferenceDialog; import org.eclipse.jface.text.templates.persistence.TemplatePersistenceData; import org.eclipse.jface.text.templates.persistence.TemplateStore; import org.eclipse.swt.SWT; import org.eclipse.swt.events.MouseEvent; import org.eclipse.swt.events.MouseListener; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Link; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Table; import org.eclipse.swt.widgets.TableItem; import org.eclipse.ui.dialogs.PreferencesUtil; import org.eclipse.ui.dialogs.SelectionDialog; import org.python.pydev.editor.templates.PyContextType; import org.python.pydev.editor.templates.TemplateHelper; import org.python.pydev.plugin.PydevPlugin; public class TemplateSelectDialog extends SelectionDialog { private Label label; private Table templateList; private TreeMap<String, TemplatePersistenceData> nameToTemplateData; private IDialogSettings fDialogSettings; protected TemplateSelectDialog(Shell parentShell) { super(parentShell); } @Override protected Control createDialogArea(Composite parent) { Composite topLevel = (Composite) super.createDialogArea(parent); createTemplateOptions(topLevel); return topLevel; } @Override protected Control createContents(Composite parent) { Control ret = super.createContents(parent); org.python.pydev.plugin.PydevPlugin.setCssId(parent, "py-template-select-dialog", true); return ret; } private void createTemplateOptions(Composite topLevel) { final TemplateStore templateStore = TemplateHelper.getTemplateStore(); if (templateStore != null) { TemplatePersistenceData[] templateData = templateStore.getTemplateData(false); if (templateData != null && templateData.length > 0) { //create the template selection label = new Label(topLevel, SWT.NONE); label.setText("Template"); templateList = new Table(topLevel, SWT.SINGLE | SWT.V_SCROLL | SWT.H_SCROLL | SWT.BORDER); fillTemplateOptions(templateData, templateList); templateList.addMouseListener(new MouseListener() { public void mouseUp(MouseEvent e) { } public void mouseDown(MouseEvent e) { } public void mouseDoubleClick(MouseEvent e) { okPressed(); } }); Link link = new Link(topLevel, SWT.NONE); link.setText("<a>Config available templates...</a>"); link.addSelectionListener(new SelectionListener() { public void widgetSelected(SelectionEvent e) { PreferenceDialog dialog = PreferencesUtil.createPreferenceDialogOn(null, "org.python.pydev.prefs.template", null, null); dialog.open(); //Fill it after having the settings edited. TemplatePersistenceData[] templateData = templateStore.getTemplateData(false); if (templateData != null && templateData.length > 0) { fillTemplateOptions(templateData, templateList); } else { fillTemplateOptions(new TemplatePersistenceData[0], templateList); } } public void widgetDefaultSelected(SelectionEvent e) { } }); setLayout(label, templateList, link); } } } private static final String DIALOG_HEIGHT = "DIALOG_HEIGHT"; //$NON-NLS-1$ private static final String DIALOG_WIDTH = "DIALOG_WIDTH"; //$NON-NLS-1$ private static final String DIALOG_BOUNDS_SETTINGS = "DialogBoundsSettings"; //$NON-NLS-1$ /* * (non-Javadoc) * * @see org.eclipse.jface.window.Dialog#getDialogBoundsSettings() */ @Override protected IDialogSettings getDialogBoundsSettings() { IDialogSettings settings = getDialogSettings(); IDialogSettings section = settings.getSection(DIALOG_BOUNDS_SETTINGS); if (section == null) { section = settings.addNewSection(DIALOG_BOUNDS_SETTINGS); section.put(DIALOG_HEIGHT, 500); section.put(DIALOG_WIDTH, 600); } return section; } /** * Returns the dialog settings. Returned object can't be null. * * @return return dialog settings for this dialog */ protected IDialogSettings getDialogSettings() { IDialogSettings settings = PydevPlugin.getDefault().getDialogSettings(); fDialogSettings = settings.getSection(TemplateSelectDialog.class.getName()); if (fDialogSettings == null) { fDialogSettings = settings.addNewSection(TemplateSelectDialog.class.getName()); } return fDialogSettings; } /** * Sets the template options in the passed list (swt) */ private void fillTemplateOptions(TemplatePersistenceData[] templateData, Table list) { nameToTemplateData = new TreeMap<String, TemplatePersistenceData>(); for (TemplatePersistenceData data : templateData) { if (PyContextType.PY_MODULES_CONTEXT_TYPE.equals(data.getTemplate().getContextTypeId())) { String name = data.getTemplate().getName(); nameToTemplateData.put(name, data); } } ArrayList<String> lst = new ArrayList<String>(nameToTemplateData.keySet()); for (String string : lst) { new TableItem(list, SWT.NONE).setText(string); } list.setSelection(0); } @Override protected void okPressed() { TemplatePersistenceData selectedTemplate = getCurr(); setResult(Arrays.asList(selectedTemplate)); super.okPressed(); } /** * @return the data for the selected template or null if not available. */ private TemplatePersistenceData getCurr() { if (templateList != null && nameToTemplateData != null) { TableItem[] sel = templateList.getSelection(); if (sel != null && sel.length > 0) { return nameToTemplateData.get(sel[0].getText(0)); } } return null; } public TemplatePersistenceData getSelectedTemplate() { Object[] r = this.getResult(); if (r != null && r.length > 0) { return (TemplatePersistenceData) r[0]; } return null; } private void setLayout(Label label, Control control, Control link) { GridData data; if (label != null) { data = new GridData(); data.grabExcessHorizontalSpace = false; label.setLayoutData(data); } if (control != null) { data = new GridData(GridData.FILL_BOTH); data.grabExcessHorizontalSpace = true; data.grabExcessVerticalSpace = true; control.setLayoutData(data); } if (link != null) { data = new GridData(); link.setLayoutData(data); } } }