Java tutorial
/** BlackBoard breadboard designer Written and maintained by Matthias Pueski Copyright (c) 2010-2011 Matthias Pueski This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ package org.pmedv.blackboard.commands; import java.awt.event.ActionEvent; import java.awt.event.InputEvent; import java.awt.event.KeyEvent; import javax.swing.Action; import javax.swing.ImageIcon; import javax.swing.KeyStroke; import javax.swing.undo.UndoManager; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.pmedv.blackboard.EditorUtils; import org.pmedv.blackboard.app.FileState; import org.pmedv.blackboard.components.BoardEditor; import org.pmedv.blackboard.components.Diode; import org.pmedv.blackboard.components.Item; import org.pmedv.blackboard.components.Layer; import org.pmedv.blackboard.dialogs.DiodeDialog; import org.pmedv.blackboard.models.BoardEditorModel; import org.pmedv.core.commands.AbstractEditorCommand; import org.pmedv.core.context.AppContext; import org.pmedv.core.dialogs.AbstractNiceDialog; import org.pmedv.core.services.ResourceService; import org.springframework.context.ApplicationContext; /** * This command adds a new {@link Diode} with a specified value to the board. * * @author Matthias Pueski (29.05.2011) * */ public class AddDiodeCommand extends AbstractEditorCommand { private static final long serialVersionUID = 6153211504066921518L; private static final Log log = LogFactory.getLog(AddDiodeCommand.class); public AddDiodeCommand() { putValue(Action.NAME, resources.getResourceByKey("AddDiodeCommand.name")); putValue(Action.SMALL_ICON, resources.getIcon("icon.diode")); putValue(Action.SHORT_DESCRIPTION, resources.getResourceByKey("AddDiodeCommand.description")); putValue(Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke(KeyEvent.VK_O, InputEvent.CTRL_DOWN_MASK)); setEnabled(false); } @Override public void execute(ActionEvent e) { ApplicationContext ctx = AppContext.getContext(); ResourceService resourceService = ctx.getBean(ResourceService.class); String title = resources.getResourceByKey("AddDiodeCommand.name"); String subTitle = resources.getResourceByKey("AddDiodeCommand.dialog.subtitle"); ImageIcon icon = resourceService.getIcon("icon.dialog.diode"); DiodeDialog dlg = new DiodeDialog(title, subTitle, icon, null); dlg.setVisible(true); if (dlg.getResult() == AbstractNiceDialog.OPTION_CANCEL) return; BoardEditor editor = EditorUtils.getCurrentActiveEditor(); Diode diode = dlg.getDiode(); // now get a new index int max = 0; for (Layer layer : editor.getModel().getLayers()) { for (Item item : layer.getItems()) { if (item.getIndex() > max) max = item.getIndex(); } } max++; diode.setIndex(max); // Check if the default part layer exists boolean onPartLayer = false; for (Layer layer : editor.getModel().getLayers()) { if (layer.getIndex() == BoardEditorModel.PART_LAYER) { diode.setLayer(BoardEditorModel.PART_LAYER); onPartLayer = true; break; } } if (!onPartLayer) { diode.setLayer(editor.getModel().getCurrentLayer().getIndex()); } editor.getModel().getLayer(diode.getLayer()).getItems().add(diode); UndoManager undoManager = editor.getUndoManager(); if (!undoManager.addEdit(new AddDiodeEdit(diode))) { log.error("could not add edit to undo manager"); } ctx.getBean(RedoCommand.class).setEnabled(undoManager.canRedo()); ctx.getBean(UndoCommand.class).setEnabled(undoManager.canUndo()); editor.setFileState(FileState.DIRTY); editor.updateStatusBar(); editor.refresh(); } }