Java tutorial
/******************************************************************************* * Copyright (c) 2010 Oak Ridge National Laboratory. * 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 org.csstudio.swt.xygraph.toolbar; import java.util.ArrayList; import java.util.List; import org.csstudio.swt.xygraph.figures.Annotation; import org.csstudio.swt.xygraph.figures.Axis; import org.csstudio.swt.xygraph.figures.Trace; import org.csstudio.swt.xygraph.figures.XYGraph; import org.csstudio.swt.xygraph.undo.XYGraphConfigCommand; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.swt.SWT; import org.eclipse.swt.custom.StackLayout; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.graphics.Point; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Combo; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Group; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.TabFolder; import org.eclipse.swt.widgets.TabItem; /**The dialog for configuring XYGraph properties. * @author Xihui Chen * */ public class XYGraphConfigDialog extends Dialog { private GraphConfigPage graphConfigPage; private List<AnnotationConfigPage> annotationConfigPageList; private List<AxisConfigPage> axisConfigPageList; private List<TraceConfigPage> traceConfigPageList; private XYGraph xyGraph; private XYGraphConfigCommand command; private boolean changed = false; protected XYGraphConfigDialog(Shell parentShell, XYGraph xyGraph) { super(parentShell); this.xyGraph = xyGraph; graphConfigPage = new GraphConfigPage(xyGraph); annotationConfigPageList = new ArrayList<AnnotationConfigPage>(); axisConfigPageList = new ArrayList<AxisConfigPage>(); traceConfigPageList = new ArrayList<TraceConfigPage>(); command = new XYGraphConfigCommand(xyGraph); command.savePreviousStates(); // Allow resize setShellStyle(getShellStyle() | SWT.RESIZE); } @Override protected void configureShell(Shell newShell) { super.configureShell(newShell); newShell.setText("Configure Graph Settings"); } @Override protected Control createDialogArea(Composite parent) { final Composite parent_composite = (Composite) super.createDialogArea(parent); parent_composite.setLayout(new FillLayout()); final TabFolder tabFolder = new TabFolder(parent_composite, SWT.NONE); Composite graphTabComposite = new Composite(tabFolder, SWT.NONE); graphConfigPage.createPage(graphTabComposite); TabItem graphConfigTab = new TabItem(tabFolder, SWT.NONE); graphConfigTab.setText("Graph"); graphConfigTab.setToolTipText("Configure General Graph Settings"); graphConfigTab.setControl(graphTabComposite); //Axis Configure Page Composite axisTabComposite = new Composite(tabFolder, SWT.NONE); axisTabComposite.setLayout(new GridLayout(1, false)); TabItem axisConfigTab = new TabItem(tabFolder, SWT.NONE); axisConfigTab.setText("Axes"); axisConfigTab.setToolTipText("Configure Axes Settings"); axisConfigTab.setControl(axisTabComposite); Group axisSelectGroup = new Group(axisTabComposite, SWT.NONE); axisSelectGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false)); axisSelectGroup.setText("Select Axis"); axisSelectGroup.setLayout(new GridLayout(1, false)); final Combo axisCombo = new Combo(axisSelectGroup, SWT.DROP_DOWN); axisCombo.setLayoutData(new GridData(SWT.FILL, 0, true, false)); for (Axis axis : xyGraph.getAxisList()) axisCombo.add(axis.getTitle() + (axis.isHorizontal() ? "(X-Axis)" : "(Y-Axis)")); axisCombo.select(0); final Composite axisConfigComposite = new Composite(axisTabComposite, SWT.NONE); axisConfigComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false)); final StackLayout axisStackLayout = new StackLayout(); axisConfigComposite.setLayout(axisStackLayout); for (Axis axis : xyGraph.getAxisList()) { Group axisConfigGroup = new Group(axisConfigComposite, SWT.NONE); axisConfigGroup.setText("Change Settings"); axisConfigGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true)); AxisConfigPage axisConfigPage = new AxisConfigPage(xyGraph, axis); axisConfigPageList.add(axisConfigPage); axisConfigPage.createPage(axisConfigGroup); } axisStackLayout.topControl = axisConfigPageList.get(0).getComposite(); axisCombo.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { axisStackLayout.topControl = axisConfigPageList.get(axisCombo.getSelectionIndex()).getComposite(); axisConfigComposite.layout(true, true); } }); //Trace Configure Page if (xyGraph.getPlotArea().getTraceList().size() > 0) { Composite traceTabComposite = new Composite(tabFolder, SWT.NONE); traceTabComposite.setLayout(new GridLayout(1, false)); TabItem traceConfigTab = new TabItem(tabFolder, SWT.NONE); traceConfigTab.setText("Traces"); traceConfigTab.setToolTipText("Configure Traces Settings"); traceConfigTab.setControl(traceTabComposite); Group traceSelectGroup = new Group(traceTabComposite, SWT.NONE); traceSelectGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false)); traceSelectGroup.setText("Select Trace"); traceSelectGroup.setLayout(new GridLayout(1, false)); final Combo traceCombo = new Combo(traceSelectGroup, SWT.DROP_DOWN); traceCombo.setLayoutData(new GridData(SWT.FILL, 0, true, false)); for (Trace trace : xyGraph.getPlotArea().getTraceList()) traceCombo.add(trace.getName()); traceCombo.select(0); final Composite traceConfigComposite = new Composite(traceTabComposite, SWT.NONE); traceConfigComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false)); final StackLayout traceStackLayout = new StackLayout(); traceConfigComposite.setLayout(traceStackLayout); for (Trace trace : xyGraph.getPlotArea().getTraceList()) { Group traceConfigGroup = new Group(traceConfigComposite, SWT.NONE); traceConfigGroup.setText("Change Settings"); traceConfigGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true)); TraceConfigPage traceConfigPage = new TraceConfigPage(xyGraph, trace); traceConfigPageList.add(traceConfigPage); traceConfigPage.createPage(traceConfigGroup); } traceStackLayout.topControl = traceConfigPageList.get(0).getComposite(); traceCombo.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { traceStackLayout.topControl = traceConfigPageList.get(traceCombo.getSelectionIndex()) .getComposite(); traceConfigComposite.layout(true, true); } }); } //Annotation Configure Page if (xyGraph.getPlotArea().getAnnotationList().size() > 0) { Composite annoTabComposite = new Composite(tabFolder, SWT.NONE); annoTabComposite.setLayout(new GridLayout(1, false)); TabItem annoConfigTab = new TabItem(tabFolder, SWT.NONE); annoConfigTab.setText("Annotations"); annoConfigTab.setToolTipText("Configure Annotation Settings"); annoConfigTab.setControl(annoTabComposite); Group annoSelectGroup = new Group(annoTabComposite, SWT.NONE); annoSelectGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false)); annoSelectGroup.setText("Select Annotation"); annoSelectGroup.setLayout(new GridLayout(1, false)); final Combo annotationsCombo = new Combo(annoSelectGroup, SWT.DROP_DOWN); annotationsCombo.setLayoutData(new GridData(SWT.FILL, 0, true, false)); for (Annotation annotation : xyGraph.getPlotArea().getAnnotationList()) annotationsCombo.add(annotation.getName()); annotationsCombo.select(0); final Composite annoConfigComposite = new Composite(annoTabComposite, SWT.NONE); annoConfigComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false)); final StackLayout stackLayout = new StackLayout(); annoConfigComposite.setLayout(stackLayout); for (Annotation annotation : xyGraph.getPlotArea().getAnnotationList()) { Group annoConfigGroup = new Group(annoConfigComposite, SWT.NONE); annoConfigGroup.setText("Change Settings"); annoConfigGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true)); AnnotationConfigPage annotationConfigPage = new AnnotationConfigPage(xyGraph, annotation); annotationConfigPageList.add(annotationConfigPage); annotationConfigPage.createPage(annoConfigGroup); } stackLayout.topControl = annotationConfigPageList.get(0).getComposite(); annotationsCombo.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { stackLayout.topControl = annotationConfigPageList.get(annotationsCombo.getSelectionIndex()) .getComposite(); annoConfigComposite.layout(true, true); } }); } return parent_composite; } @Override protected void createButtonsForButtonBar(Composite parent) { ((GridLayout) parent.getLayout()).numColumns++; Button button = new Button(parent, SWT.PUSH); button.setText("Apply"); GridData data = new GridData(GridData.HORIZONTAL_ALIGN_FILL); int widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH); Point minSize = button.computeSize(SWT.DEFAULT, SWT.DEFAULT, true); data.widthHint = Math.max(widthHint, minSize.x); button.setLayoutData(data); button.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { applyChanges(); } }); super.createButtonsForButtonBar(parent); Shell shell = parent.getShell(); if (shell != null) { shell.setDefaultButton(button); } } @Override protected void okPressed() { applyChanges(); command.saveAfterStates(); xyGraph.getOperationsManager().addCommand(command); super.okPressed(); } private void applyChanges() { changed = true; graphConfigPage.applyChanges(); for (AxisConfigPage axisConfigPage : axisConfigPageList) axisConfigPage.applyChanges(); for (TraceConfigPage traceConfigPage : traceConfigPageList) traceConfigPage.applyChanges(); for (AnnotationConfigPage annotationConfigPage : annotationConfigPageList) annotationConfigPage.applyChanges(); } @Override protected void cancelPressed() { if (changed) { command.saveAfterStates(); xyGraph.getOperationsManager().addCommand(command); } super.cancelPressed(); } }