Java tutorial
/* * =========================================================== * JFreeChart : a free chart library for the Java(tm) platform * =========================================================== * * (C) Copyright 2000-2008, by Object Refinery Limited and Contributors. * * Project Info: http://www.jfree.org/jfreechart/index.html * * This library is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation; either version 2.1 of the License, or * (at your option) any later version. * * This library is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public * License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, * USA. * * [Java is a trademark or registered trademark of Sun Microsystems, Inc. * in the United States and other countries.] * * ---------------------------- * SWTPlotAppearanceEditor.java * ---------------------------- * (C) Copyright 2006-2008, by Henry Proudhon and Contributors. * * Original Author: Henry Proudhon (henry.proudhon AT ensmp.fr); * Contributor(s): David Gilbert (for Object Refinery Limited); * * Changes * ------- * 01-Aug-2006 : New class (HP); * 18-Dec-2008 : Use ResourceBundleWrapper - see patch 1607918 by * Jess Thrysoee (DG); */ package com.rcp.wbw.demo.editor; import java.awt.BasicStroke; import java.awt.Stroke; import java.util.ResourceBundle; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.graphics.Color; import org.eclipse.swt.graphics.RGB; 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.ColorDialog; import org.eclipse.swt.widgets.Combo; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Group; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Spinner; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.Plot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.util.ResourceBundleWrapper; import com.rcp.wbw.demo.swt.SWTPaintCanvas; import com.rcp.wbw.demo.swt.SWTUtils; /** * An editor for plot properties. */ class SWTPlotAppearanceEditor extends Composite { private Spinner selectStroke; /** The stroke (pen) used to draw the outline of the plot. */ private SWTStrokeCanvas strokeCanvas; /** The paint (color) used to fill the background of the plot. */ private SWTPaintCanvas backgroundPaintCanvas; /** The paint (color) used to draw the outline of the plot. */ private SWTPaintCanvas outlinePaintCanvas; /** The orientation for the plot. */ private PlotOrientation plotOrientation; private Combo orientation; /** Orientation constants. */ private final static String[] orientationNames = { "Vertical", "Horizontal" }; private final static int ORIENTATION_VERTICAL = 0; private final static int ORIENTATION_HORIZONTAL = 1; /** The resourceBundle for the localization. */ protected static ResourceBundle localizationResources = ResourceBundleWrapper .getBundle("org.jfree.chart.editor.LocalizationBundle"); SWTPlotAppearanceEditor(Composite parent, int style, Plot plot) { super(parent, style); FillLayout layout = new FillLayout(); layout.marginHeight = layout.marginWidth = 4; setLayout(layout); Group general = new Group(this, SWT.NONE); GridLayout groupLayout = new GridLayout(3, false); groupLayout.marginHeight = groupLayout.marginWidth = 4; general.setLayout(groupLayout); general.setText(localizationResources.getString("General")); // row 1: stroke new Label(general, SWT.NONE).setText(localizationResources.getString("Outline_stroke")); this.strokeCanvas = new SWTStrokeCanvas(general, SWT.NONE); this.strokeCanvas.setStroke(plot.getOutlineStroke()); GridData strokeGridData = new GridData(SWT.FILL, SWT.CENTER, true, false); strokeGridData.heightHint = 20; this.strokeCanvas.setLayoutData(strokeGridData); this.selectStroke = new Spinner(general, SWT.BORDER); this.selectStroke.setMinimum(1); this.selectStroke.setMaximum(3); this.selectStroke.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false)); this.selectStroke.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent event) { int w = SWTPlotAppearanceEditor.this.selectStroke.getSelection(); if (w > 0) { SWTPlotAppearanceEditor.this.strokeCanvas.setStroke(new BasicStroke(w)); SWTPlotAppearanceEditor.this.strokeCanvas.redraw(); } } }); // row 2: outline color new Label(general, SWT.NONE).setText(localizationResources.getString("Outline_Paint")); this.outlinePaintCanvas = new SWTPaintCanvas(general, SWT.NONE, SWTUtils.toSwtColor(getDisplay(), plot.getOutlinePaint())); GridData outlineGridData = new GridData(SWT.FILL, SWT.CENTER, true, false); outlineGridData.heightHint = 20; this.outlinePaintCanvas.setLayoutData(outlineGridData); Button selectOutlineColor = new Button(general, SWT.PUSH); selectOutlineColor.setText(localizationResources.getString("Select...")); selectOutlineColor.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, false, false)); selectOutlineColor.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent event) { ColorDialog dlg = new ColorDialog(getShell()); dlg.setText(localizationResources.getString("Outline_Paint")); dlg.setRGB(SWTPlotAppearanceEditor.this.outlinePaintCanvas.getColor().getRGB()); RGB rgb = dlg.open(); if (rgb != null) { SWTPlotAppearanceEditor.this.outlinePaintCanvas.setColor(new Color(getDisplay(), rgb)); } } }); // row 3: background paint new Label(general, SWT.NONE).setText(localizationResources.getString("Background_paint")); this.backgroundPaintCanvas = new SWTPaintCanvas(general, SWT.NONE, SWTUtils.toSwtColor(getDisplay(), plot.getBackgroundPaint())); GridData bgGridData = new GridData(SWT.FILL, SWT.CENTER, true, false); bgGridData.heightHint = 20; this.backgroundPaintCanvas.setLayoutData(bgGridData); Button selectBgPaint = new Button(general, SWT.PUSH); selectBgPaint.setText(localizationResources.getString("Select...")); selectBgPaint.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, false, false)); selectBgPaint.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent event) { ColorDialog dlg = new ColorDialog(getShell()); dlg.setText(localizationResources.getString("Background_paint")); dlg.setRGB(SWTPlotAppearanceEditor.this.backgroundPaintCanvas.getColor().getRGB()); RGB rgb = dlg.open(); if (rgb != null) { SWTPlotAppearanceEditor.this.backgroundPaintCanvas.setColor(new Color(getDisplay(), rgb)); } } }); // row 4: orientation if (plot instanceof CategoryPlot) { this.plotOrientation = ((CategoryPlot) plot).getOrientation(); } else if (plot instanceof XYPlot) { this.plotOrientation = ((XYPlot) plot).getOrientation(); } if (this.plotOrientation != null) { boolean isVertical = this.plotOrientation.equals(PlotOrientation.VERTICAL); int index = isVertical ? ORIENTATION_VERTICAL : ORIENTATION_HORIZONTAL; new Label(general, SWT.NONE).setText(localizationResources.getString("Orientation")); this.orientation = new Combo(general, SWT.DROP_DOWN); this.orientation.setItems(orientationNames); this.orientation.select(index); this.orientation.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, true, false, 2, 1)); this.orientation.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent event) { switch (SWTPlotAppearanceEditor.this.orientation.getSelectionIndex()) { case ORIENTATION_VERTICAL: SWTPlotAppearanceEditor.this.plotOrientation = PlotOrientation.VERTICAL; break; case ORIENTATION_HORIZONTAL: SWTPlotAppearanceEditor.this.plotOrientation = PlotOrientation.HORIZONTAL; break; default: SWTPlotAppearanceEditor.this.plotOrientation = PlotOrientation.VERTICAL; } } }); } } /** * Returns the plot orientation. * * @return The plot orientation. */ public PlotOrientation getPlotOrientation() { return this.plotOrientation; } /** * Returns the background paint. * * @return The background paint. */ public Color getBackGroundPaint() { return this.backgroundPaintCanvas.getColor(); } /** * Returns the outline paint. * * @return The outline paint. */ public Color getOutlinePaint() { return this.outlinePaintCanvas.getColor(); } /** * Returns the stroke. * * @return The stroke. */ public Stroke getStroke() { return this.strokeCanvas.getStroke(); } }