Java tutorial
/* * $Id$ * * Copyright (c) 2004-2005 by the TeXlapse Team. * 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 */ package net.sourceforge.texlipse.properties; import java.io.File; import net.sourceforge.texlipse.TexlipsePlugin; import net.sourceforge.texlipse.builder.ProgramRunner; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.resource.JFaceResources; import org.eclipse.swt.SWT; import org.eclipse.swt.events.ModifyEvent; import org.eclipse.swt.events.ModifyListener; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; 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.FileDialog; import org.eclipse.swt.widgets.Group; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Text; /** * Builder configuration dialog. * Configures all the different ProgramRunner classes. * * @author Kimmo Karlsson */ public class BuilderConfigDialog extends Dialog { protected File lastPath; private Text fileField; private Text argsField; private Label statusField; private ProgramRunner builder; /** * @param parentShell */ public BuilderConfigDialog(Shell parentShell, ProgramRunner runner) { super(parentShell); builder = runner; } /** * Set dialog title when the window is created. */ protected void configureShell(Shell newShell) { super.configureShell(newShell); newShell.setText(TexlipsePlugin.getResourceString("preferenceBuilderDialogTitle")); } /** * Check that the config is valid. * Close the dialog is the config is valid. */ protected void okPressed() { String path = fileField.getText(); if (!checkFile(path)) { return; } builder.setProgramPath(path); builder.setProgramArguments(argsField.getText()); setReturnCode(OK); close(); } /** * Check if the file name field contains a valid value. * @param path file path * @return true, if path is empty string or absolute path to an existing file */ protected boolean checkFile(String path) { if (path != null && path.length() > 0) { File exec = new File(path); if (!exec.isFile() || (!exec.exists() && exec.isFile())) { setStatus("preferenceBuilderDialogFileNotFound", ""); return false; } } setStatus("preferenceBuilderDialogFileOk", ""); return true; } /** * Set status field message. * @param key message text key on resource bundle * @param info value of the text parameter (%s) */ protected void setStatus(String key, String info) { String msg = ""; if (key != null && key.length() > 0) { msg = TexlipsePlugin.getResourceString(key); if (msg.indexOf("%s") >= 0) { msg = msg.replaceAll("%s", info); } } statusField.setText(msg); } /** * Called at component creation phase. * @return initial status message for the dialog */ private String resolveStatus() { String path = builder.getProgramPath(); if (path == null || path.length() == 0) { return TexlipsePlugin.getResourceString("preferenceBuilderDialogFileEmpty"); } File exec = new File(path); if (!exec.exists() && exec.isFile()) { return TexlipsePlugin.getResourceString("preferenceBuilderDialogFileNotFound"); } return TexlipsePlugin.getResourceString("preferenceBuilderDialogFileOk"); } /** * Create the contents of the dialog. */ protected Control createDialogArea(Composite parent) { Composite composite = (Composite) super.createDialogArea(parent); GridLayout gl = (GridLayout) composite.getLayout(); gl.numColumns = 2; Label descrLabel = new Label(composite, SWT.LEFT); descrLabel.setText(TexlipsePlugin.getResourceString("preferenceBuilderDialogDescriptionLabel") .replaceAll("%s", builder.getDescription())); GridData dgd = new GridData(GridData.FILL_HORIZONTAL); dgd.horizontalSpan = 2; descrLabel.setLayoutData(dgd); addFileBrowser(composite); addArgumentsField(composite); if (builder.getInputFormat() != null && builder.getInputFormat().length() > 0 && builder.getOutputFormat() != null && builder.getOutputFormat().length() > 0) { addFormatsField(composite); } Group group = new Group(composite, SWT.SHADOW_IN); group.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); ((GridData) group.getLayoutData()).horizontalSpan = 2; group.setLayout(new GridLayout()); statusField = new Label(group, SWT.LEFT); statusField.setText(resolveStatus()); statusField.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); statusField.setToolTipText(TexlipsePlugin.getResourceString("preferenceBuilderDialogStatusTooltip")); return composite; } /** * Creates the executable browsing component. * @param composite parent component */ private void addFileBrowser(Composite composite) { Label fileLabel = new Label(composite, SWT.LEFT); fileLabel.setText(TexlipsePlugin.getResourceString("preferenceBuilderCommandLabel")); fileLabel.setToolTipText(TexlipsePlugin.getResourceString("preferenceBuilderCommandTooltip")); fileLabel.setLayoutData(new GridData()); Composite browser = new Composite(composite, SWT.NONE); browser.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); GridLayout bgl = new GridLayout(); bgl.numColumns = 2; browser.setLayout(bgl); fileField = new Text(browser, SWT.SINGLE | SWT.BORDER); fileField.setText(builder.getProgramPath()); fileField.setToolTipText(TexlipsePlugin.getResourceString("preferenceBuilderCommandTooltip")); fileField.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); fileField.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { checkFile(fileField.getText()); } }); Button browseButton = new Button(browser, SWT.PUSH); browseButton.setText(JFaceResources.getString("openBrowse")); browseButton.setLayoutData(new GridData()); browseButton.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent event) { FileDialog dialog = new FileDialog(getShell()); if (lastPath != null) { if (lastPath.exists()) { dialog.setFilterPath(lastPath.getAbsolutePath()); } } else { lastPath = new File(fileField.getText()); while (lastPath != null && !lastPath.isDirectory()) { lastPath = lastPath.getParentFile(); } if (lastPath != null && lastPath.exists()) { dialog.setFilterPath(lastPath.getAbsolutePath()); } } String dir = dialog.open(); if (dir != null) { lastPath = new File(dir.trim()); if (lastPath.exists()) { fileField.setText(lastPath.getAbsolutePath()); } else { lastPath = null; } checkFile(fileField.getText()); } } }); } /** * Adds the program arguments text field to the dialog. * @param parent parent component */ private void addArgumentsField(Composite parent) { Label label = new Label(parent, SWT.LEFT); label.setText(TexlipsePlugin.getResourceString("preferenceBuilderArgsLabel")); label.setToolTipText(TexlipsePlugin.getResourceString("preferenceBuilderArgsTooltip")); label.setLayoutData(new GridData()); argsField = new Text(parent, SWT.SINGLE | SWT.BORDER); argsField.setText(builder.getProgramArguments()); argsField.setToolTipText(TexlipsePlugin.getResourceString("preferenceBuilderArgsTooltip")); argsField.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); } /** * Adds the program arguments text field to the dialog. * @param parent parent component */ private void addFormatsField(Composite parent) { Composite leftPart = new Composite(parent, SWT.NULL); leftPart.setLayoutData(new GridData()); GridLayout llay = new GridLayout(); llay.numColumns = 2; leftPart.setLayout(llay); Label label = new Label(leftPart, SWT.LEFT); label.setText(TexlipsePlugin.getResourceString("preferenceBuilderInputFormatLabel")); label.setLayoutData(new GridData()); Group inputGroup = new Group(leftPart, SWT.SHADOW_IN); inputGroup.setLayoutData(new GridData()); inputGroup.setLayout(new GridLayout()); Label inputLabel = new Label(inputGroup, SWT.LEFT); inputLabel.setText("." + builder.getInputFormat()); inputLabel.setLayoutData(new GridData()); Composite rightPart = new Composite(parent, SWT.NULL); rightPart.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); GridLayout rlay = new GridLayout(); rlay.numColumns = 2; rightPart.setLayout(rlay); Label label2 = new Label(rightPart, SWT.LEFT); label2.setText(TexlipsePlugin.getResourceString("preferenceBuilderOutputFormatLabel")); label2.setLayoutData(new GridData()); Group outputGroup = new Group(rightPart, SWT.SHADOW_IN); outputGroup.setLayoutData(new GridData()); outputGroup.setLayout(new GridLayout()); Label outputLabel = new Label(outputGroup, SWT.LEFT); outputLabel.setText("." + builder.getOutputFormat()); outputLabel.setLayoutData(new GridData()); } }