Java tutorial
/* This file is part of LibreDraw. LibreDraw 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 3 of the License, or (at your option) any later version. LibreDraw 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 LibreDraw. If not, see <http://www.gnu.org/licenses/>. */ package org.libredraw.client.umlclassdiagram; import java.util.Vector; import org.libredraw.client.ClientSession; import org.libredraw.client.LibreRPC; import org.libredraw.client.LibreRPCAsync; import org.libredraw.client.StackTrace; import org.libredraw.client.TableView; import org.libredraw.shared.umlclassdiagram.UMLAttribute; import org.libredraw.shared.umlclassdiagram.UMLAttributeParser; import org.libredraw.shared.umlclassdiagram.UMLInterface; import org.libredraw.shared.umlclassdiagram.UMLOperation; import org.libredraw.shared.umlclassdiagram.UMLOperationParser; import org.libredraw.shared.umlclassdiagram.UMLVisibility; import com.google.gwt.core.client.GWT; import com.google.gwt.uibinder.client.UiBinder; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.rpc.AsyncCallback; import com.google.gwt.user.client.ui.AbsolutePanel; import com.google.gwt.user.client.ui.ClickListener; import com.google.gwt.user.client.ui.DialogBox; import com.google.gwt.user.client.ui.HorizontalPanel; import com.google.gwt.user.client.ui.Widget; import com.google.gwt.uibinder.client.UiField; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.TextBox; import com.google.gwt.uibinder.client.UiHandler; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.user.client.ui.VerticalPanel; import com.google.gwt.user.client.ui.Label; import com.googlecode.objectify.Key; @SuppressWarnings("deprecation") public class EditInterfaceDialog extends DialogBox { private final LibreRPCAsync LibreRPCService = GWT.create(LibreRPC.class); private static newClassDialogUiBinder uiBinder = GWT.create(newClassDialogUiBinder.class); @UiField Button attributeAddButton; @UiField TextBox atributeTextBox; @UiField TextBox nameTextBox; @UiField Button newOperationButton; @UiField TextBox operationsTextBox; @UiField VerticalPanel attributePanel; @UiField VerticalPanel operationPanel; @UiField Label errorLabel; ClickListenerImpl removeButtonListener; Vector<TextBox> attributeTexts; Vector<TextBox> operationTexts; long thisBranch; UMLInterface thisInterface; private final class ClickListenerImpl implements ClickListener { TextBox m_textBox; public ClickListenerImpl(TextBox b) { m_textBox = b; } @Override public void onClick(Widget sender) { HorizontalPanel h = (HorizontalPanel) sender.getParent(); h.removeFromParent(); if (attributeTexts.contains(m_textBox)) attributeTexts.remove(m_textBox); if (operationTexts.contains(m_textBox)) operationTexts.remove(m_textBox); } } interface newClassDialogUiBinder extends UiBinder<Widget, EditInterfaceDialog> { } public EditInterfaceDialog(Key<?> entity, long branch) { setWidget(uiBinder.createAndBindUi(this)); this.setAnimationEnabled(true); this.setAnimationEnabled(true); this.setGlassEnabled(true); this.center(); this.setText("Edit UML Interface"); attributeTexts = new Vector<TextBox>(); attributeTexts.add(atributeTextBox); operationTexts = new Vector<TextBox>(); operationTexts.add(operationsTextBox); thisBranch = branch; LibreRPCService.getUMLInterface(ClientSession.getInstance().getSessionId(), entity.getId(), new AsyncCallback<UMLInterface>() { @Override public void onFailure(Throwable caught) { TableView.registerErrorDialog(new StackTrace(caught)); } @Override public void onSuccess(UMLInterface result) { thisInterface = result; populateBoxes(); } }); } private void populateBoxes() { int count = 0; for (UMLAttribute a : thisInterface.attributes) { if (count == 0) atributeTextBox.setText(a.toString()); else addNewAttributeBox(a.toString()); count++; } count = 0; for (UMLOperation o : thisInterface.operations) { if (count == 0) operationsTextBox.setText(o.toString()); else addNewOperationBox(o.toString()); count++; } nameTextBox.setText(thisInterface.m_name); this.center(); } @UiHandler("attributeAddButton") void onAttributeAddButtonClick(ClickEvent event) { addNewAttributeBox(""); } private void addNewAttributeBox(String string) { HorizontalPanel h = new HorizontalPanel(); AbsolutePanel spacer = new AbsolutePanel(); spacer.setWidth("94px"); h.add(spacer); TextBox text = new TextBox(); text.setHeight("16px"); text.setWidth("170px"); text.setText(string); attributeTexts.add(text); h.add(text); Button remove = new Button("-", new ClickListenerImpl(text)); remove.setHeight("28px"); remove.setWidth("28px"); h.add(remove); attributePanel.add(h); } @UiHandler("newOperationButton") void onNewOperationButtonClick(ClickEvent event) { addNewOperationBox(""); } private void addNewOperationBox(String string) { HorizontalPanel h = new HorizontalPanel(); AbsolutePanel spacer = new AbsolutePanel(); spacer.setWidth("94px"); h.add(spacer); TextBox text = new TextBox(); text.setHeight("16px"); text.setWidth("170px"); operationTexts.add(text); h.add(text); Button remove = new Button("-", new ClickListenerImpl(text)); remove.setHeight("28px"); remove.setWidth("28px"); h.add(remove); operationPanel.add(h); } @UiHandler("cancelButton") void onCancelButtonClick(ClickEvent event) { LibreRPCService.unlock(ClientSession.getInstance().getSessionId(), thisInterface.entityKey, new AsyncCallback<Boolean>() { @Override public void onFailure(Throwable caught) { TableView.registerErrorDialog(new StackTrace(caught)); } @Override public void onSuccess(Boolean result) { if (result) myHide(); else Window.alert("Generic error."); } }); } @UiHandler("submitButton") void onSubmitButtonClick(ClickEvent event) { errorLabel.setText(""); Vector<UMLAttribute> attributes = new Vector<UMLAttribute>(); for (TextBox t : attributeTexts) { if (t != null) { UMLAttributeParser parser; try { parser = new UMLAttributeParser(t.getText()); attributes.add(parser.getValue()); } catch (Exception e) { if (t.getText() != "") { errorLabel.setText("Error parsing: " + t.getText()); return; } } } } Vector<UMLOperation> operations = new Vector<UMLOperation>(); for (TextBox t : operationTexts) { if (t != null) { UMLOperationParser parser; try { parser = new UMLOperationParser(t.getText()); operations.add(parser.getValue()); } catch (Exception e) { if (t.getText() != "") { errorLabel.setText("Error parsing: " + t.getText()); return; } } } } thisInterface.m_name = nameTextBox.getText(); thisInterface.m_visibility = UMLVisibility.Public; thisInterface.operations = operations; thisInterface.attributes = attributes; LibreRPCService.updateUMLInterface(ClientSession.getInstance().getSessionId(), thisBranch, thisInterface, new AsyncCallback<Boolean>() { @Override public void onFailure(Throwable caught) { TableView.registerErrorDialog(new StackTrace(caught)); } @Override public void onSuccess(Boolean result) { if (result) { myHide(); DiagramView.getInstance().refresh(); } } }); } void myHide() { this.removeFromParent(); } }