Java tutorial
// The MIT License (MIT) // // Copyright (c) 2015 Arian Fornaris // // Permission is hereby granted, free of charge, to any person obtaining a // copy of this software and associated documentation files (the // "Software"), to deal in the Software without restriction, including // without limitation the rights to use, copy, modify, merge, publish, // distribute, sublicense, and/or sell copies of the Software, and to permit // persons to whom the Software is furnished to do so, subject to the // following conditions: The above copyright notice and this permission // notice shall be included in all copies or substantial portions of the // Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN // NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE // USE OR OTHER DEALINGS IN THE SOFTWARE. package phasereditor.assetpack.ui.editors; import java.beans.PropertyChangeListener; import java.beans.PropertyChangeSupport; import java.util.List; import java.util.function.Consumer; import org.eclipse.core.databinding.Binding; import org.eclipse.core.databinding.DataBindingContext; import org.eclipse.core.databinding.UpdateValueStrategy; import org.eclipse.core.databinding.beans.BeanProperties; import org.eclipse.core.databinding.observable.list.IObservableList; import org.eclipse.core.databinding.observable.value.IObservableValue; import org.eclipse.core.resources.IFile; import org.eclipse.core.runtime.CoreException; import org.eclipse.jface.databinding.fieldassist.ControlDecorationSupport; import org.eclipse.jface.databinding.swt.WidgetProperties; import org.eclipse.jface.databinding.viewers.ViewerProperties; import org.eclipse.jface.viewers.ArrayContentProvider; import org.eclipse.jface.viewers.ComboViewer; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; 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.Label; import org.eclipse.swt.widgets.Text; import org.eclipse.wb.swt.SWTResourceManager; import org.json.JSONException; import phasereditor.assetpack.core.AssetPackCore; import phasereditor.assetpack.core.AssetPackModel; import phasereditor.assetpack.core.PhysicsAssetModel; import phasereditor.assetpack.ui.AssetPackUI; public class PhysicsAssetEditorComp extends Composite { private DataBindingContext m_bindingContext; private Text _text; private Text _text_1; private Text _text_2; private Label _keyLabel; private Label _urlLabel; private Label _formatLabel; private Text _helpLabel; private Label _dataLabel; /** * Create the composite. * * @param parent * @param style */ public PhysicsAssetEditorComp(Composite parent, int style) { super(parent, style); setLayout(new GridLayout(1, false)); Label lblSetTheProperties = new Label(this, SWT.WRAP); lblSetTheProperties.setText("Set the properties of the 'physics'. Required fields are denoted by '*'."); GridData gd_lblSetTheProperties = new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1); gd_lblSetTheProperties.widthHint = 100; lblSetTheProperties.setLayoutData(gd_lblSetTheProperties); Composite composite = new Composite(this, SWT.NONE); composite.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1)); GridLayout gl_composite = new GridLayout(3, false); gl_composite.marginWidth = 0; composite.setLayout(gl_composite); _keyLabel = new Label(composite, SWT.NONE); _keyLabel.setText("key*"); _text = new Text(composite, SWT.BORDER); _text.setText(""); _text.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 2, 1)); _urlLabel = new Label(composite, SWT.NONE); _urlLabel.setText("url"); _text_1 = new Text(composite, SWT.BORDER); _text_1.setText(""); GridData gd_text_1 = new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1); gd_text_1.widthHint = 100; _text_1.setLayoutData(gd_text_1); Button btnBrowse = new Button(composite, SWT.NONE); btnBrowse.setText("Browse..."); btnBrowse.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { browseUrl(); } }); _dataLabel = new Label(composite, SWT.NONE); _dataLabel.setText("data"); _dataLabel.setLayoutData(new GridData(SWT.LEFT, SWT.TOP, false, false, 1, 1)); _text_2 = new Text(composite, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL | SWT.CANCEL | SWT.MULTI); _text_2.setText(""); GridData gd_text_2 = new GridData(SWT.FILL, SWT.CENTER, true, false, 2, 1); gd_text_2.heightHint = 100; gd_text_2.widthHint = 100; _text_2.setLayoutData(gd_text_2); _formatLabel = new Label(composite, SWT.NONE); _formatLabel.setText("format"); _formatLabel.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1)); _formatViewer = new ComboViewer(composite, SWT.READ_ONLY); Combo combo = _formatViewer.getCombo(); combo.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 2, 1)); _formatViewer.setContentProvider(new ArrayContentProvider()); _formatViewer.setLabelProvider(new LabelProvider()); Label lblHelp = new Label(this, SWT.NONE); lblHelp.setText("Help"); _helpLabel = new Text(this, SWT.READ_ONLY | SWT.WRAP | SWT.MULTI); _helpLabel.setBackground(SWTResourceManager.getColor(SWT.COLOR_TRANSPARENT)); GridData gd__helpLabel = new GridData(SWT.FILL, SWT.FILL, false, true, 1, 1); gd__helpLabel.widthHint = 200; _helpLabel.setLayoutData(gd__helpLabel); afterCreateWidgets(); m_bindingContext = initDataBindings(); } protected void browseUrl() { try { AssetPackModel pack = _model.getPack(); IFile urlFile = _model.getFileFromUrl(_model.getUrl()); List<IFile> files = AssetPackCore.discoverFiles(pack.getAssetsFolder(), AssetPackCore.createFileExtFilter("json")); AssetPackUI.browseAssetFile(pack, "physics JSON", urlFile, files, getShell(), new Consumer<String>() { @Override public void accept(String t) { getModel().setUrl(t); } }); } catch (CoreException e) { e.printStackTrace(); throw new RuntimeException(e); } } private void afterCreateWidgets() { _formatViewer.setInput(new Object[] { PhysicsAssetModel.LIME_CORONA_JSON }); } private PhysicsAssetEditorComp _self = this; private PhysicsAssetModel _model; private boolean _firstTime = true; private void decorateControls() { IObservableList bindings = m_bindingContext.getBindings(); for (int i = 0; i < bindings.size(); i++) { Binding b = (Binding) bindings.get(i); ControlDecorationSupport.create(b, SWT.TOP | SWT.LEFT); } } private void validateModelToTarget() { IObservableList bindings = m_bindingContext.getBindings(); for (int i = 0; i < bindings.size(); i++) { Binding b = (Binding) bindings.get(i); b.validateTargetToModel(); } } public PhysicsAssetModel getModel() { return _model; } public void setModel(PhysicsAssetModel model) { _model = model; firePropertyChange("model"); if (_firstTime) { _firstTime = false; setHelpMessages(model); decorateControls(); } validateModelToTarget(); } private void setHelpMessages(PhysicsAssetModel model) { _helpLabel.setText(model.getHelp()); _helpLabel.setToolTipText(model.getHelp()); // params try { _keyLabel.setToolTipText(model.getHelp("key")); _urlLabel.setToolTipText(model.getHelp("url")); _dataLabel.setToolTipText(model.getHelp("data")); _formatLabel.setToolTipText(model.getHelp("format")); } catch (JSONException e) { e.printStackTrace(); throw new RuntimeException(e); } } private transient final PropertyChangeSupport support = new PropertyChangeSupport(this); private ComboViewer _formatViewer; public void addPropertyChangeListener(PropertyChangeListener l) { support.addPropertyChangeListener(l); } public void removePropertyChangeListener(PropertyChangeListener l) { support.removePropertyChangeListener(l); } public void addPropertyChangeListener(String property, PropertyChangeListener l) { support.addPropertyChangeListener(property, l); } public void removePropertyChangeListener(String property, PropertyChangeListener l) { support.removePropertyChangeListener(property, l); } public void firePropertyChange(String property) { support.firePropertyChange(property, true, false); } protected DataBindingContext initDataBindings() { DataBindingContext bindingContext = new DataBindingContext(); // IObservableValue observeText_textObserveWidget = WidgetProperties.text(SWT.Modify).observe(_text); IObservableValue modelkey_selfObserveValue = BeanProperties.value("model.key").observe(_self); UpdateValueStrategy strategy = new UpdateValueStrategy(); strategy.setBeforeSetValidator(new RequiredValidator()); bindingContext.bindValue(observeText_textObserveWidget, modelkey_selfObserveValue, strategy, null); // IObservableValue observeText_text_1ObserveWidget = WidgetProperties.text(SWT.Modify).observe(_text_1); IObservableValue modelurl_selfObserveValue = BeanProperties.value("model.url").observe(_self); bindingContext.bindValue(observeText_text_1ObserveWidget, modelurl_selfObserveValue, null, null); // IObservableValue observeText_text_2ObserveWidget = WidgetProperties.text(SWT.Modify).observe(_text_2); IObservableValue modeldata_selfObserveValue = BeanProperties.value("model.data").observe(_self); bindingContext.bindValue(observeText_text_2ObserveWidget, modeldata_selfObserveValue, null, null); // IObservableValue observeSingleSelection_comboViewer = ViewerProperties.singleSelection() .observe(_formatViewer); IObservableValue modelformat_selfObserveValue = BeanProperties.value("model.format").observe(_self); bindingContext.bindValue(observeSingleSelection_comboViewer, modelformat_selfObserveValue, null, null); // return bindingContext; } }