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.eclipse.nebula.visualization.xygraph.toolbar; import org.eclipse.jface.preference.ColorSelector; import org.eclipse.jface.util.IPropertyChangeListener; import org.eclipse.jface.util.PropertyChangeEvent; import org.eclipse.nebula.visualization.xygraph.Activator; import org.eclipse.nebula.visualization.xygraph.figures.Axis; import org.eclipse.nebula.visualization.xygraph.figures.XYGraph; import org.eclipse.nebula.visualization.xygraph.linearscale.Range; import org.eclipse.nebula.visualization.xygraph.util.XYGraphMediaFactory; import org.eclipse.swt.SWT; import org.eclipse.swt.custom.CLabel; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.graphics.Font; import org.eclipse.swt.graphics.FontData; 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.Display; import org.eclipse.swt.widgets.FontDialog; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.MessageBox; import org.eclipse.swt.widgets.Text; /**This will help to create the necessary widgets * to configure an axis's properties. * @author Xihui Chen * */ public class AxisConfigPage { private XYGraph xyGraph; private Axis axis; private Text titleText; private Label scaleFontLabel; private Font scaleFont; private Label titleFontLabel; private Font titleFont; private ColorSelector axisColorSelector; private Button primaryButton; private Button logButton; private Button autoScaleButton; private Label maxOrAutoScaleLabel; private DoubleInputText maxOrAutoScaleThrText; private Label minLabel; private DoubleInputText minText; private Button dateEnabledButton; private Button autoFormat; private Label formatLabel; private Text formatText; private Button showGridButton; private Button dashGridLineButton; private ColorSelector gridColorSelector; private Button showAxisButton; private Composite composite; private boolean enableRanges; public AxisConfigPage(XYGraph xyGraph, Axis axis, boolean enableRanges) { this.xyGraph = xyGraph; this.axis = axis; scaleFont = axis.getFont(); titleFont = axis.getTitleFont(); this.enableRanges = enableRanges; } public void createPage(final Composite composite) { this.composite = composite; composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true)); composite.setLayout(new GridLayout(3, false)); GridData gd; GridData labelGd = new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1); final Label titleLabel = new Label(composite, 0); titleLabel.setText("Title: "); titleLabel.setLayoutData(labelGd); titleText = new Text(composite, SWT.BORDER | SWT.SINGLE); gd = new GridData(SWT.FILL, SWT.CENTER, true, false, 2, 1); titleText.setLayoutData(gd); titleFontLabel = new Label(composite, 0); labelGd = new GridData(SWT.FILL, SWT.CENTER, false, false, 2, 1); titleFontLabel.setLayoutData(labelGd); final Button titleFontButton = new Button(composite, SWT.PUSH); titleFontButton.setText("Change..."); gd = new GridData(SWT.BEGINNING, SWT.CENTER, false, false, 1, 1); titleFontButton.setLayoutData(gd); titleFontButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { FontDialog fontDialog = new FontDialog(composite.getShell()); if (titleFont != null) fontDialog.setFontList(titleFont.getFontData()); FontData fontData = fontDialog.open(); if (fontData != null) { titleFont = XYGraphMediaFactory.getInstance().getFont(fontData); titleFontLabel.setFont(titleFont); titleFontLabel.setText("Title Font: " + fontData.getName()); composite.getShell().layout(true, true); } } }); scaleFontLabel = new Label(composite, 0); labelGd = new GridData(SWT.FILL, SWT.CENTER, false, false, 2, 1); scaleFontLabel.setLayoutData(labelGd); final Button scaleFontButton = new Button(composite, SWT.PUSH); scaleFontButton.setText("Change..."); gd = new GridData(SWT.BEGINNING, SWT.CENTER, false, false, 1, 1); scaleFontButton.setLayoutData(gd); scaleFontButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { FontDialog fontDialog = new FontDialog(composite.getShell()); if (scaleFont != null) fontDialog.setFontList(scaleFont.getFontData()); FontData fontData = fontDialog.open(); if (fontData != null) { scaleFont = XYGraphMediaFactory.getInstance().getFont(fontData); scaleFontLabel.setFont(scaleFont); scaleFontLabel.setText("Scale Font: " + fontData.getName()); composite.getShell().layout(true, true); } } }); final Label colorLabel = new Label(composite, 0); colorLabel.setText("Axis Color:"); labelGd = new GridData(SWT.FILL, SWT.CENTER, false, false, 2, 1); colorLabel.setLayoutData(labelGd); axisColorSelector = new ColorSelector(composite); gd = new GridData(SWT.BEGINNING, SWT.CENTER, false, false, 1, 1); axisColorSelector.getButton().setLayoutData(gd); axisColorSelector.addListener(new IPropertyChangeListener() { public void propertyChange(PropertyChangeEvent event) { scaleFontLabel.setForeground( XYGraphMediaFactory.getInstance().getColor(axisColorSelector.getColorValue())); titleFontLabel.setForeground( XYGraphMediaFactory.getInstance().getColor(axisColorSelector.getColorValue())); } }); primaryButton = new Button(composite, SWT.CHECK); configCheckButton(primaryButton, "On Primary Side(Bottom/Left)"); logButton = new Button(composite, SWT.CHECK); configCheckButton(logButton, "Log"); autoScaleButton = new Button(composite, SWT.CHECK); configCheckButton(autoScaleButton, "Auto Scale Enabled"); maxOrAutoScaleLabel = new Label(composite, 0); labelGd = new GridData(SWT.BEGINNING, SWT.CENTER, false, false, 1, 1); maxOrAutoScaleLabel.setLayoutData(labelGd); maxOrAutoScaleThrText = new DoubleInputText(composite, SWT.BORDER | SWT.SINGLE); gd = new GridData(SWT.FILL, SWT.BEGINNING, true, false, 2, 1); maxOrAutoScaleThrText.getText().setLayoutData(gd); maxOrAutoScaleThrText.getText().setEnabled(enableRanges); minLabel = new Label(composite, 0); minLabel.setText("Minimum: "); labelGd = new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1); minLabel.setLayoutData(labelGd); minText = new DoubleInputText(composite, SWT.BORDER | SWT.SINGLE); gd = new GridData(SWT.FILL, SWT.BEGINNING, true, false, 2, 1); minText.getText().setLayoutData(gd); minText.getText().setEnabled(enableRanges); if (!enableRanges) { final CLabel info = new CLabel(composite, SWT.WRAP); info.setLayoutData(new GridData(SWT.FILL, SWT.NONE, true, false, 3, 1)); info.setText("Automatic rescale is on, max. and min. therefore cannot be edited."); info.setImage(Activator.getImageDescriptor("icons/rescale.png").createImage()); Label sep = new Label(composite, SWT.SEPARATOR | SWT.HORIZONTAL); sep.setLayoutData(new GridData(SWT.FILL, SWT.NONE, true, false, 3, 1)); } //autoScale button listener autoScaleButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { if (autoScaleButton.getSelection()) { maxOrAutoScaleLabel.setText("Auto Scale Threshold(%)"); maxOrAutoScaleThrText.setRange(new Range(0, 100)); maxOrAutoScaleThrText.getText().setText(String.valueOf(axis.getAutoScaleThreshold())); minLabel.setVisible(false); minText.getText().setVisible(false); } else { maxOrAutoScaleLabel.setText("Maximum"); maxOrAutoScaleThrText.setRange(null); maxOrAutoScaleThrText.getText().setText(String.valueOf(axis.getRange().getUpper())); minLabel.setVisible(true); minText.getText().setVisible(true); } composite.getShell().layout(true, true); } }); dateEnabledButton = new Button(composite, SWT.CHECK); configCheckButton(dateEnabledButton, "Time Format Enabled"); autoFormat = new Button(composite, SWT.CHECK); configCheckButton(autoFormat, "Auto Format"); formatLabel = new Label(composite, 0); labelGd = new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1); formatLabel.setLayoutData(labelGd); formatText = new Text(composite, SWT.BORDER | SWT.SINGLE); gd = new GridData(SWT.FILL, SWT.CENTER, true, false, 2, 1); formatText.setLayoutData(gd); dateEnabledButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { boolean saveDateEnabled = axis.isDateEnabled(); boolean saveAutoFormat = axis.isAutoFormat(); axis.setDateEnabled(dateEnabledButton.getSelection()); axis.setAutoFormat(true); formatLabel.setText(dateEnabledButton.getSelection() ? "Time Format: " : "Numeric Format: "); formatText.setText(axis.getFormatPattern()); axis.setDateEnabled(saveDateEnabled); axis.setAutoFormat(saveAutoFormat); composite.getShell().layout(true, true); } }); autoFormat.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { formatText.setEnabled(!autoFormat.getSelection()); if (autoFormat.getSelection()) { boolean saveDateEnabled = axis.isDateEnabled(); boolean saveAutoFormat = axis.isAutoFormat(); axis.setDateEnabled(dateEnabledButton.getSelection()); axis.setAutoFormat(autoFormat.getSelection()); formatText.setText(axis.getFormatPattern()); axis.setDateEnabled(saveDateEnabled); axis.setAutoFormat(saveAutoFormat); } } }); Label sep = new Label(composite, SWT.SEPARATOR | SWT.HORIZONTAL); sep.setLayoutData(new GridData(SWT.FILL, SWT.NONE, true, false, 3, 1)); showGridButton = new Button(composite, SWT.CHECK); configCheckButton(showGridButton, "Show Grid Line"); dashGridLineButton = new Button(composite, SWT.CHECK); configCheckButton(dashGridLineButton, "Dash Grid Line"); Label gridColorLabel = new Label(composite, 0); gridColorLabel.setText("Grid Color"); labelGd = new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1); gridColorLabel.setLayoutData(labelGd); gridColorSelector = new ColorSelector(composite); gd = new GridData(SWT.BEGINNING, SWT.CENTER, false, false, 1, 1); gridColorSelector.getButton().setLayoutData(gd); showAxisButton = new Button(composite, SWT.CHECK); configCheckButton(showAxisButton, "Show Axis"); initialize(); } private void configCheckButton(Button button, String text) { button.setText(text); button.setLayoutData(new GridData(SWT.BEGINNING, SWT.BEGINNING, false, false, 3, 2)); } /** * @return the composite */ public Composite getComposite() { return composite; } public void applyChanges() { axis.setTitle(titleText.getText()); axis.setFont(scaleFont); axis.setTitleFont(titleFont); axis.setForegroundColor(XYGraphMediaFactory.getInstance().getColor(axisColorSelector.getColorValue())); axis.setPrimarySide(primaryButton.getSelection()); axis.setLogScale(logButton.getSelection()); axis.setAutoScale(autoScaleButton.getSelection()); if (autoScaleButton.getSelection()) axis.setAutoScaleThreshold(maxOrAutoScaleThrText.getDoubleValue()); else axis.setRange(minText.getDoubleValue(), maxOrAutoScaleThrText.getDoubleValue()); axis.setDateEnabled(dateEnabledButton.getSelection()); axis.setAutoFormat(autoFormat.getSelection()); if (!autoFormat.getSelection()) { String saveFormat = axis.getFormatPattern(); try { axis.setFormatPattern(formatText.getText()); axis.format(0); } catch (Exception e) { axis.setFormatPattern(saveFormat); MessageBox mb = new MessageBox(Display.getCurrent().getActiveShell(), SWT.ICON_ERROR | SWT.OK); mb.setMessage("Failed to set format due to incorrect format pattern: " + e.getMessage()); mb.setText("Format pattern error!"); mb.open(); } } axis.setShowMajorGrid(showGridButton.getSelection()); axis.setDashGridLine(dashGridLineButton.getSelection()); axis.setMajorGridColor(XYGraphMediaFactory.getInstance().getColor(gridColorSelector.getColorValue())); axis.setVisible(showAxisButton.getSelection()); } private void initialize() { titleText.setText(axis.getTitle()); scaleFontLabel.setForeground(axis.getForegroundColor()); scaleFontLabel.setFont(scaleFont); scaleFontLabel.setText("Scale Font: " + scaleFont.getFontData()[0].getName()); titleFontLabel.setForeground(axis.getForegroundColor()); titleFontLabel.setFont(titleFont); titleFontLabel.setText("Title Font: " + titleFont.getFontData()[0].getName()); axisColorSelector.setColorValue(axis.getForegroundColor().getRGB()); primaryButton.setSelection(axis.isOnPrimarySide()); if (axis == xyGraph.primaryXAxis || axis == xyGraph.primaryYAxis) primaryButton.setEnabled(false); logButton.setSelection(axis.isLogScaleEnabled()); autoScaleButton.setSelection(axis.isAutoScale()); Range r = axis.getLocalRange(); if (autoScaleButton.getSelection()) { maxOrAutoScaleLabel.setText("Auto Scale Threshold(%)"); maxOrAutoScaleThrText.setRange(new Range(0, 100)); maxOrAutoScaleThrText.getText().setText(String.valueOf(axis.getAutoScaleThreshold())); minLabel.setVisible(false); minText.getText().setVisible(false); } else { maxOrAutoScaleLabel.setText("Maximum"); maxOrAutoScaleThrText.setRange(null); maxOrAutoScaleThrText.getText().setText(String.valueOf(r.getUpper())); minLabel.setVisible(true); minText.getText().setVisible(true); } minText.getText().setText(String.valueOf(r.getLower())); dateEnabledButton.setSelection(axis.isDateEnabled()); autoFormat.setSelection(axis.isAutoFormat()); formatLabel.setText(dateEnabledButton.getSelection() ? "Time Format: " : "Numeric Format: "); formatText.setText(axis.getFormatPattern()); //formatLabel.setVisible(!autoFormat.getSelection()); formatText.setEnabled(!autoFormat.getSelection()); showGridButton.setSelection(axis.isShowMajorGrid()); dashGridLineButton.setSelection(axis.isDashGridLine()); gridColorSelector.setColorValue(axis.getMajorGridColor().getRGB()); showAxisButton.setSelection(axis.isVisible()); } }