Java tutorial
/******************************************************************************* * Copyright (c) 2009 STMicroelectronics. * 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: * Marzia Maugeri <marzia.maugeri@st.com> - initial API and implementation *******************************************************************************/ package org.eclipse.linuxtools.dataviewers.dialogs; import java.io.File; import org.eclipse.core.resources.IFile; import org.eclipse.core.resources.IWorkspace; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.IPath; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.resource.JFaceResources; import org.eclipse.linuxtools.dataviewers.abstractviewers.STDataViewersCSVExporter; import org.eclipse.linuxtools.dataviewers.abstractviewers.STDataViewersCSVExporterConstants; 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.events.SelectionListener; import org.eclipse.swt.graphics.Color; 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.Display; 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; import org.eclipse.ui.dialogs.SaveAsDialog; public class STDataViewersExportToCSVDialog extends Dialog { private Text previewText = null; private Text outputFile = null; private Text separatorText = null; private Text childLinkText = null; private Text noChildLinkText = null; private Text childMarkerText = null; private Text lastChildMarkerText = null; private Text leafMarkerText = null; private Text nodeMarkerText = null; private Label childLinkLabel = null; private Label noChildLinkLabel = null; private Label childMarkerLabel = null; private Label lastChildMarkerLabel = null; private Label leafMarkerLabel = null; private Label nodeMarkerLabel = null; private Button expandAllButton = null; private Button showHiddenColumnsButton = null; private Button exportTreePrefixButton = null; private Button restoreDefaults = null; private STDataViewersCSVExporter exporter = null; private ModifyListener updatePreviewModifyListener = new ModifyListener() { public void modifyText(ModifyEvent e) { updatePreview(); } }; private SelectionListener updatePreviewSelectionListener = new SelectionListener() { public void widgetDefaultSelected(SelectionEvent e) { widgetSelected(e); } public void widgetSelected(SelectionEvent e) { updatePreview(); } }; public STDataViewersExportToCSVDialog(Shell parentShell, STDataViewersCSVExporter exporter) { super(parentShell); this.setShellStyle(this.getShellStyle() | SWT.RESIZE); this.exporter = exporter; } @Override protected void configureShell(Shell newShell) { super.configureShell(newShell); newShell.setText("Export to CSV"); } @Override protected Control createDialogArea(Composite parent) { Composite composite = (Composite) super.createDialogArea(parent); GridData layoutData = new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1); composite.setLayoutData(layoutData); GridLayout layout = new GridLayout(1, false); composite.setLayout(layout); if (exporter == null) { return composite; } initializeDialogUnits(composite); createOutputFileArea(composite); createCSVConfigArea(composite); if (exporter.isTreeViewerExporter()) { createTreePrefixConfigArea(composite); } createCSVPreviewArea(composite); createRestoreDefaultsButton(composite); createSeparatorLine(composite); Dialog.applyDialogFont(composite); setDefaultWidgetsValues(); return composite; } private void createOutputFileArea(Composite composite) { Group outputGroup = new Group(composite, SWT.NONE); outputGroup.setText("Output file"); GridData layoutData = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1); outputGroup.setLayoutData(layoutData); GridLayout layout = new GridLayout(2, false); outputGroup.setLayout(layout); Label outputLabel = new Label(outputGroup, SWT.NONE); outputLabel.setText("Output file:"); layoutData = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1); outputLabel.setLayoutData(layoutData); outputFile = new Text(outputGroup, SWT.BORDER); layoutData = new GridData(SWT.FILL, SWT.FILL, true, false, 1, 1); outputFile.setLayoutData(layoutData); Composite browseComposite = new Composite(outputGroup, SWT.NONE); layoutData = new GridData(SWT.RIGHT, SWT.FILL, false, false, 2, 1); browseComposite.setLayoutData(layoutData); layout = new GridLayout(2, false); browseComposite.setLayout(layout); Button browseOutputButton = new Button(browseComposite, SWT.PUSH); browseOutputButton.setText("File System..."); browseOutputButton.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { handleBrowse(); } }); layoutData = new GridData(SWT.RIGHT, SWT.FILL, false, false, 1, 1); browseOutputButton.setLayoutData(layoutData); Button browseOutputInWorkspaceButton = new Button(browseComposite, SWT.PUSH); browseOutputInWorkspaceButton.setText("Workspace..."); browseOutputInWorkspaceButton.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { handleBrowseWorkspace(); } }); layoutData = new GridData(SWT.RIGHT, SWT.FILL, false, false, 1, 1); browseOutputInWorkspaceButton.setLayoutData(layoutData); } private void createCSVConfigArea(Composite composite) { Group configGroup = new Group(composite, SWT.NONE); configGroup.setText("CSV Configuration"); GridData layoutData = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1); configGroup.setLayoutData(layoutData); GridLayout layout = new GridLayout(2, false); configGroup.setLayout(layout); Label separatorLabel = new Label(configGroup, SWT.NONE); separatorLabel.setText("CSV Separator:"); layoutData = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1); separatorLabel.setLayoutData(layoutData); separatorText = new Text(configGroup, SWT.BORDER); separatorText.setFont(JFaceResources.getTextFont()); separatorText.addModifyListener(updatePreviewModifyListener); layoutData = new GridData(SWT.FILL, SWT.FILL, true, false, 1, 1); separatorText.setLayoutData(layoutData); if (exporter.isTreeViewerExporter()) { expandAllButton = new Button(configGroup, SWT.CHECK); expandAllButton.setText("Expand All"); layoutData = new GridData(SWT.FILL, SWT.FILL, false, false, 1, 1); expandAllButton.setLayoutData(layoutData); } else { new Label(configGroup, SWT.NONE).setText(" "); } showHiddenColumnsButton = new Button(configGroup, SWT.CHECK); showHiddenColumnsButton.setText("Export Hidden Columns"); layoutData = new GridData(SWT.FILL, SWT.FILL, false, false, 1, 1); showHiddenColumnsButton.setLayoutData(layoutData); } private void createTreePrefixConfigArea(Composite composite) { Group prefixConfigGroup = new Group(composite, SWT.NONE); prefixConfigGroup.setText("Tree ascii-art drawing"); GridData layoutData = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1); prefixConfigGroup.setLayoutData(layoutData); GridLayout layout = new GridLayout(5, false); prefixConfigGroup.setLayout(layout); exportTreePrefixButton = new Button(prefixConfigGroup, SWT.CHECK); exportTreePrefixButton.setText("Export ascii-art tree"); exportTreePrefixButton.addSelectionListener(updatePreviewSelectionListener); exportTreePrefixButton.addSelectionListener(new SelectionListener() { public void widgetDefaultSelected(SelectionEvent e) { widgetSelected(e); } public void widgetSelected(SelectionEvent e) { boolean enabled = exportTreePrefixButton.getSelection(); enableTreePrefixText(enabled); } }); layoutData = new GridData(SWT.FILL, SWT.FILL, false, false, 2, 1); exportTreePrefixButton.setLayoutData(layoutData); Label blankLabel = new Label(prefixConfigGroup, SWT.NONE); blankLabel.setText(""); layoutData = new GridData(SWT.LEFT, SWT.CENTER, false, false, 3, 1); blankLabel.setLayoutData(layoutData); childLinkLabel = new Label(prefixConfigGroup, SWT.NONE); childLinkLabel.setText("Child Link:"); layoutData = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1); childLinkLabel.setLayoutData(layoutData); childLinkText = new Text(prefixConfigGroup, SWT.BORDER); childLinkText.setFont(JFaceResources.getTextFont()); childLinkText.addModifyListener(updatePreviewModifyListener); layoutData = new GridData(SWT.FILL, SWT.FILL, true, false, 1, 1); childLinkText.setLayoutData(layoutData); Label separator = new Label(prefixConfigGroup, SWT.SEPARATOR | SWT.VERTICAL); layoutData = new GridData(SWT.CENTER, SWT.FILL, false, true, 1, 3); separator.setLayoutData(layoutData); noChildLinkLabel = new Label(prefixConfigGroup, SWT.NONE); noChildLinkLabel.setText("No-child Link:"); layoutData = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1); noChildLinkLabel.setLayoutData(layoutData); noChildLinkText = new Text(prefixConfigGroup, SWT.BORDER); noChildLinkText.setFont(JFaceResources.getTextFont()); noChildLinkText.addModifyListener(updatePreviewModifyListener); layoutData = new GridData(SWT.FILL, SWT.FILL, true, false, 1, 1); noChildLinkText.setLayoutData(layoutData); childMarkerLabel = new Label(prefixConfigGroup, SWT.NONE); childMarkerLabel.setText("Child Marker:"); layoutData = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1); childMarkerLabel.setLayoutData(layoutData); childMarkerText = new Text(prefixConfigGroup, SWT.BORDER); childMarkerText.setFont(JFaceResources.getTextFont()); childMarkerText.addModifyListener(updatePreviewModifyListener); layoutData = new GridData(SWT.FILL, SWT.FILL, true, false, 1, 1); childMarkerText.setLayoutData(layoutData); lastChildMarkerLabel = new Label(prefixConfigGroup, SWT.NONE); lastChildMarkerLabel.setText("Last child Marker:"); layoutData = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1); lastChildMarkerLabel.setLayoutData(layoutData); lastChildMarkerText = new Text(prefixConfigGroup, SWT.BORDER); lastChildMarkerText.setFont(JFaceResources.getTextFont()); lastChildMarkerText.addModifyListener(updatePreviewModifyListener); layoutData = new GridData(SWT.FILL, SWT.FILL, true, false, 1, 1); lastChildMarkerText.setLayoutData(layoutData); leafMarkerLabel = new Label(prefixConfigGroup, SWT.NONE); leafMarkerLabel.setText("Leaf Marker:"); layoutData = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1); leafMarkerLabel.setLayoutData(layoutData); leafMarkerText = new Text(prefixConfigGroup, SWT.BORDER); leafMarkerText.setFont(JFaceResources.getTextFont()); leafMarkerText.addModifyListener(updatePreviewModifyListener); layoutData = new GridData(SWT.FILL, SWT.FILL, true, false, 1, 1); leafMarkerText.setLayoutData(layoutData); nodeMarkerLabel = new Label(prefixConfigGroup, SWT.NONE); nodeMarkerLabel.setText("Non-leaf Marker:"); layoutData = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1); nodeMarkerLabel.setLayoutData(layoutData); nodeMarkerText = new Text(prefixConfigGroup, SWT.BORDER); nodeMarkerText.setFont(JFaceResources.getTextFont()); nodeMarkerText.addModifyListener(updatePreviewModifyListener); layoutData = new GridData(SWT.FILL, SWT.FILL, true, false, 1, 1); nodeMarkerText.setLayoutData(layoutData); } private void createCSVPreviewArea(Composite composite) { Group previewGroup = new Group(composite, SWT.NONE); previewGroup.setText("Preview"); GridData layoutData = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1); previewGroup.setLayoutData(layoutData); GridLayout layout = new GridLayout(1, false); previewGroup.setLayout(layout); previewText = new Text(previewGroup, SWT.MULTI | SWT.READ_ONLY | SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL); previewText.setBackground(new Color(Display.getCurrent(), 255, 255, 255)); previewText.setFont(JFaceResources.getTextFont()); layoutData = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 8); previewText.setLayoutData(layoutData); } private void createRestoreDefaultsButton(Composite composite) { restoreDefaults = new Button(composite, SWT.NONE); restoreDefaults.setText("Restore Defaults"); restoreDefaults.addSelectionListener(new SelectionListener() { public void widgetDefaultSelected(SelectionEvent e) { widgetSelected(e); } public void widgetSelected(SelectionEvent e) { restoreDefaults(); } }); GridData layoutData = new GridData(SWT.RIGHT, SWT.FILL, false, false, 1, 1); restoreDefaults.setLayoutData(layoutData); } private void restoreDefaults() { outputFile.setText(STDataViewersCSVExporterConstants.DEFAULT_EXPORTER_OUTPUT_FILE_PATH); separatorText.setText(STDataViewersCSVExporterConstants.DEFAULT_EXPORTER_SEPARATOR); showHiddenColumnsButton .setSelection(STDataViewersCSVExporterConstants.DEFAULT_EXPORTER_SHOW_HIDDEN_COLUMNS); if (exporter.isTreeViewerExporter()) { expandAllButton.setSelection(STDataViewersCSVExporterConstants.DEFAULT_EXPORTER_EXPAND_ALL); childMarkerText.setText(STDataViewersCSVExporterConstants.DEFAULT_EXPORTER_CHILD_MARKER); lastChildMarkerText.setText(STDataViewersCSVExporterConstants.DEFAULT_EXPORTER_LAST_CHILD_MARKER); childLinkText.setText(STDataViewersCSVExporterConstants.DEFAULT_EXPORTER_CHILD_LINK); noChildLinkText.setText(STDataViewersCSVExporterConstants.DEFAULT_EXPORTER_NO_CHILD_LINK); leafMarkerText.setText(STDataViewersCSVExporterConstants.DEFAULT_EXPORTER_LEAF_MARKER); nodeMarkerText.setText(STDataViewersCSVExporterConstants.DEFAULT_EXPORTER_NODE_MARKER); exportTreePrefixButton.setSelection(STDataViewersCSVExporterConstants.DEFAULT_EXPORTER_TREE_PREFIX); enableTreePrefixText(exportTreePrefixButton.getSelection()); } updatePreview(); } private void setDefaultWidgetsValues() { outputFile.setText(exporter.getFilePath()); showHiddenColumnsButton.setSelection(exporter.getShowHiddenColumns()); separatorText.setText(inactivateSpecialChars(exporter.getCSVSeparator())); if (exporter.isTreeViewerExporter()) { expandAllButton.setSelection(exporter.getExpandAll()); exportTreePrefixButton.setSelection(exporter.getExportTreePrefix()); childLinkText.setText(inactivateSpecialChars(exporter.getCSVChildLink())); childMarkerText.setText(inactivateSpecialChars(exporter.getCSVChildMarker())); lastChildMarkerText.setText(inactivateSpecialChars(exporter.getCSVLastChildMarker())); noChildLinkText.setText(inactivateSpecialChars(exporter.getCSVNoChildLink())); leafMarkerText.setText(inactivateSpecialChars(exporter.getCSVLeafMarker())); nodeMarkerText.setText(inactivateSpecialChars(exporter.getCSVNodeMarker())); enableTreePrefixText(exportTreePrefixButton.getSelection()); } updatePreview(); } private void updatePreview() { if (exporter.isTreeViewerExporter()) { previewText.setText(createPreview(separatorText.getText(), childMarkerText.getText(), lastChildMarkerText.getText(), nodeMarkerText.getText(), leafMarkerText.getText(), childLinkText.getText(), noChildLinkText.getText(), exportTreePrefixButton.getSelection())); } else { previewText.setText(createPreview(separatorText.getText(), null, null, null, null, null, null, false)); } } public String createPreview(String Separator, String childMarker, String lastChildMarker, String nodeMarker, String leafMarker, String childLink, String noChildLink, boolean exportTreePrefix) { String preview = ""; if (exportTreePrefix) { preview += "Hierarchy" + Separator; } preview += "col_1" + Separator + "col_2" + "\n"; if (exportTreePrefix) { preview += childMarker + nodeMarker + Separator; } preview += "A1" + Separator + "B1" + "\n"; if (exportTreePrefix) { preview += childLink + lastChildMarker + leafMarker + Separator; } preview += "A11" + Separator + "B11" + "\n"; if (exportTreePrefix) { preview += lastChildMarker + nodeMarker + Separator; } preview += "A2" + Separator + "B2" + "\n"; if (exportTreePrefix) { preview += noChildLink + childMarker + leafMarker + Separator; } preview += "A21" + Separator + "B21" + "\n"; if (exportTreePrefix) { preview += noChildLink + childMarker + nodeMarker + Separator; } preview += "A22" + Separator + "B22" + "\n"; if (exportTreePrefix) { preview += noChildLink + childLink + lastChildMarker + leafMarker + Separator; } preview += "A221" + Separator + "B221" + "\n"; if (exportTreePrefix) { preview += noChildLink + lastChildMarker + leafMarker + Separator; } preview += "A23" + Separator + "B23"; return activateSpecialChars(preview); } private void enableTreePrefixText(boolean enabled) { childLinkText.setEnabled(enabled); noChildLinkText.setEnabled(enabled); childMarkerText.setEnabled(enabled); lastChildMarkerText.setEnabled(enabled); leafMarkerText.setEnabled(enabled); nodeMarkerText.setEnabled(enabled); childLinkLabel.setEnabled(enabled); noChildLinkLabel.setEnabled(enabled); childMarkerLabel.setEnabled(enabled); lastChildMarkerLabel.setEnabled(enabled); leafMarkerLabel.setEnabled(enabled); nodeMarkerLabel.setEnabled(enabled); } @Override protected void okPressed() { File f = new File(outputFile.getText()); if (f.exists()) { MessageDialog dialog = new MessageDialog(this.getShell(), "Warning: file already exists", null, "File \"" + f.getAbsolutePath() + "\" already exists.\n" + "Overwrite it anyway?", MessageDialog.WARNING, new String[] { "OK", "Cancel" }, 1); if (dialog.open() > 0) { return; } } if (isDirty()) { saveExporterSettings(); } super.okPressed(); } private String activateSpecialChars(String text) { String result = text.replace("\\t", "\t"); result = result.replace("\\n", "\n"); return result; } private String inactivateSpecialChars(String text) { String result = text.replace("\t", "\\t"); result = result.replace("\n", "\\n"); return result; } private void saveExporterSettings() { exporter.setFilePath(outputFile.getText()); exporter.setShowHiddenColumns(showHiddenColumnsButton.getSelection()); exporter.setCSVSeparator(activateSpecialChars(separatorText.getText())); if (exporter.isTreeViewerExporter()) { exporter.setExpandAll(expandAllButton.getSelection()); exporter.setExportTreePrefix(exportTreePrefixButton.getSelection()); exporter.setCSVChildLink(activateSpecialChars(childLinkText.getText())); exporter.setCSVChildMarker(activateSpecialChars(childMarkerText.getText())); exporter.setCSVLastChildMarker(activateSpecialChars(lastChildMarkerText.getText())); exporter.setCSVNoChildLink(activateSpecialChars(noChildLinkText.getText())); exporter.setCSVLeafMarker(activateSpecialChars(leafMarkerText.getText())); exporter.setCSVNodeMarker(activateSpecialChars(nodeMarkerText.getText())); } } /** * @return boolean */ private boolean isDirty() { if (exporter.isTreeViewerExporter()) { return !(exporter.getFilePath().equals(outputFile.getText()) && exporter.getCSVChildLink().equals(childLinkText.getText()) && exporter.getCSVChildMarker().equals(childMarkerText.getText()) && exporter.getCSVLastChildMarker().equals(lastChildMarkerText.getText()) && exporter.getCSVNoChildLink().equals(noChildLinkText.getText()) && exporter.getCSVSeparator().equals(separatorText.getText()) && exporter.getCSVLeafMarker().equals(leafMarkerText.getText()) && exporter.getCSVNodeMarker().equals(nodeMarkerText.getText()) && exporter.getExpandAll() == expandAllButton.getSelection() && exporter.getShowHiddenColumns() == showHiddenColumnsButton.getSelection() && exporter.getExportTreePrefix() == exportTreePrefixButton.getSelection() && exporter.getExpandAll() == expandAllButton.getSelection()); } else { return !(exporter.getFilePath().equals(outputFile.getText()) && exporter.getCSVSeparator().equals(separatorText.getText()) && exporter.getShowHiddenColumns() == showHiddenColumnsButton.getSelection()); } } private void createSeparatorLine(Composite parent) { Label separator = new Label(parent, SWT.SEPARATOR | SWT.HORIZONTAL); separator.setLayoutData(new GridData(GridData.FILL_HORIZONTAL | GridData.VERTICAL_ALIGN_CENTER)); } private void handleBrowseWorkspace() { SaveAsDialog dialog = new SaveAsDialog(getShell()); dialog.setTitle("Output file"); if (dialog.open() == IDialogConstants.OK_ID) { IPath p = dialog.getResult(); IWorkspace workspace = ResourcesPlugin.getWorkspace(); IFile file = workspace.getRoot().getFile(p); outputFile.setText(file.getLocation().toOSString()); } } private void handleBrowse() { FileDialog dialog = new FileDialog(this.getShell(), SWT.OPEN | SWT.SAVE); dialog.setText("Select output file"); dialog.setFilterExtensions(new String[] { "*.csv", "*.*" }); String t = outputFile.getText(); File f = new File(t); t = f.getParent(); dialog.setFilterPath(t); String s = dialog.open(); if (s != null) outputFile.setText(s); } }