org.eclipse.xwt.tools.ui.designer/src/org/eclipse/xwt/tools/ui/designer/databinding/ui/DatabindingGroup.java - xwt/org.eclipse.xwt - Git at Google

 /*******************************************************************************
  * Copyright (c) 2006, 2010 Soyatec (http://www.soyatec.com) and others.
  * 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
  *
  * Contributors:
  *     Soyatec - initial API and implementation
  *******************************************************************************/
 package org.eclipse.xwt.tools.ui.designer.databinding.ui;

 import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
 import java.util.List;

 import org.eclipse.gef.EditPart;
 import org.eclipse.gef.commands.Command;
 import org.eclipse.gef.commands.CommandStack;
 import org.eclipse.jface.viewers.ISelectionChangedListener;
 import org.eclipse.jface.viewers.SelectionChangedEvent;
 import org.eclipse.jface.window.Window;
 import org.eclipse.swt.SWT;
 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.Event;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Listener;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.xwt.tools.ui.designer.core.util.DisplayUtil;
 import org.eclipse.xwt.tools.ui.designer.databinding.BindingContext;
 import org.eclipse.xwt.tools.ui.designer.databinding.BindingHelper;
 import org.eclipse.xwt.tools.ui.designer.databinding.BindingInfo;
 import org.eclipse.xwt.tools.ui.designer.resources.ImageShop;

 /**
  * @author jliu (jin.liu@soyatec.com)
  */
 public class DatabindingGroup implements IGroup {

 	private ObserveTargetGroup targetComp;
 	private ObserveModelGroup modelComp;
 	private Button bindingAction;
 	private BindingTableGroup bindingsTableGroup;
 	private static final String ACTION_TOOLTIP_TEXT = "Create data binding use this selection";
 	private static final String ACTION_TOOLTIP_MESSAGE = "Use Ctrl for create binding without dialog(if this is possible)";

 	private Composite targetGroup;
 	private Composite modelGroup;

 	private CommandStack commandStack;
 	private BindingContext bindingContext;

 	private Object input;

 	public DatabindingGroup(CommandStack commandStack, BindingContext bindingContext) {
 		this.commandStack = commandStack;
 		this.bindingContext = bindingContext;
 	}

 	public Composite createGroup(Composite control, int style) {
 		Composite group = new Composite(control, SWT.NONE);
 		GridLayout layout = new GridLayout();
 		layout.numColumns = 3;
 		group.setLayout(layout);
 		Label label = new Label(group, SWT.NONE);
 		label.setText("Bound properties");
 		GridData gd = new GridData(GridData.FILL_HORIZONTAL);
 		gd.horizontalIndent = 5;
 		gd.horizontalSpan = 3;
 		label.setLayoutData(gd);

 		bindingsTableGroup = new BindingTableGroup(commandStack);
 		Composite table = bindingsTableGroup.createGroup(group, SWT.NONE);
 		GridData layoutData = new GridData(GridData.FILL_HORIZONTAL);
 		layoutData.horizontalSpan = 3;
 		table.setLayoutData(layoutData);
 		bindingsTableGroup.getViewer().addSelectionChangedListener(new ISelectionChangedListener() {
 			public void selectionChanged(SelectionChangedEvent event) {
 				BindingInfo selection = bindingsTableGroup.getSelection();
 				handleSelection(selection);
 			}
 		});

 		GridData sepGd = new GridData(GridData.FILL_HORIZONTAL);
 		sepGd.horizontalIndent = 5;
 		sepGd.horizontalSpan = 3;
 		new Label(group, SWT.SEPARATOR | SWT.HORIZONTAL).setLayoutData(sepGd);

 		targetComp = new ObserveTargetGroup(bindingContext, null);
 		bindingContext.addPropertyChangeListener(new PropertyChangeListener() {
 			public void propertyChange(PropertyChangeEvent evt) {
 				updateBindingAction();
 			}
 		});
 		targetGroup = targetComp.createGroup(group, SWT.NONE);
 		targetGroup.setLayoutData(new GridData(GridData.FILL_BOTH));
 		// targetGroup.setEnabled(false);
 		targetGroup.setToolTipText("please select a operation");

 		Composite separator = createButtonSeparator(group);
 		int gdStyle = GridData.FILL_VERTICAL;
 		separator.setLayoutData(new GridData(gdStyle));

 		modelComp = new ObserveModelGroup(bindingContext, null);
 		modelGroup = modelComp.createGroup(group, SWT.NONE);
 		modelGroup.setLayoutData(new GridData(GridData.FILL_BOTH));
 		// modelGroup.setEnabled(false);
 		return group;
 	}

 	protected void handleSelection(BindingInfo binding) {
 		if (binding == null) {
 			return;
 		}
 		BindingContext bc = binding.getBindingContext();
 		bindingContext.setModel(bc.getModel());
 		bindingContext.setModelProperty(bc.getModelProperty());
 		bindingContext.setTarget(bc.getTarget());
 		bindingContext.setTargetProperty(bc.getTargetProperty());
 		bindingAction.setEnabled(false);
 	}

 	private Composite createButtonSeparator(Composite parent) {
 		Composite control = new Composite(parent, SWT.NONE);
 		GridLayout layout = new GridLayout();
 		layout.marginWidth = 0;
 		layout.marginHeight = 0;
 		layout.horizontalSpacing = 0;
 		layout.verticalSpacing = 0;
 		control.setLayout(layout);

 		int orientation = SWT.SEPARATOR | SWT.VERTICAL;
 		int gdStyle = GridData.FILL_VERTICAL | GridData.HORIZONTAL_ALIGN_CENTER;

 		new Label(control, orientation).setLayoutData(new GridData(gdStyle));
 		bindingAction = new Button(control, SWT.PUSH);
 		bindingAction.setToolTipText(ACTION_TOOLTIP_TEXT + "\n" + ACTION_TOOLTIP_MESSAGE);
 		bindingAction.setImage(ImageShop.get(ImageShop.IMG_BINDING_ADD));
 		bindingAction.setEnabled(false);
 		final Listener listener = new Listener() {
 			private boolean useCtrl = false;

 			public void handleEvent(Event e) {
 				if (SWT.KeyDown == e.type) {
 					if (!useCtrl && e.keyCode == SWT.CTRL) {
 						useCtrl = true;
 					}
 				} else if (SWT.KeyUp == e.type) {
 					if (useCtrl && e.keyCode == SWT.CTRL) {
 						useCtrl = false;
 					}
 				} else if (SWT.Selection == e.type) {
 					createDataBindings(useCtrl);
 				} else if (SWT.Dispose == e.type) {
 					e.display.removeFilter(SWT.KeyUp, this);
 					e.display.removeFilter(SWT.KeyDown, this);
 				}
 			}
 		};
 		Display display = bindingAction.getDisplay();
 		display.addFilter(SWT.KeyDown, listener);
 		display.addFilter(SWT.KeyUp, listener);
 		bindingAction.addListener(SWT.Selection, listener);
 		bindingAction.addListener(SWT.Dispose, listener);
 		new Label(control, orientation).setLayoutData(new GridData(gdStyle));
 		return control;
 	}

 	protected void updateBindingAction() {
 		if (bindingAction == null || bindingAction.isDisposed()) {
 			return;
 		}
 		bindingAction.setEnabled(bindingContext.isValid());
 	}

 	protected void createDataBindings(boolean useCtrl) {
 		BindingInfo bindingInfo = new BindingInfo(bindingContext);
 		if (useCtrl) {
 			createBinding(bindingInfo);
 		} else {
 			AdvancedBindingDialog dialog = new AdvancedBindingDialog(new Shell(), bindingInfo);
 			if (dialog.open() == Window.OK) {
 				createBinding(bindingInfo);
 			}
 		}
 	}

 	private void createBinding(BindingInfo bindingInfo) {
 		Command bindCmd = bindingInfo.bindWithCommand();
 		if (bindCmd != null) {
 			if (commandStack != null) {
 				commandStack.execute(bindCmd);
 			} else if (bindCmd.canExecute()) {
 				bindCmd.execute();
 			}
 			if (input == null || !(input instanceof EditPart)) {
 				return;
 			}
 			DisplayUtil.asyncExec(new Runnable() {
 				public void run() {
 					List<BindingInfo> bindings = BindingHelper.getBindings((EditPart) input);
 					bindingsTableGroup.setInput(bindings);
 				}
 			});
 		}
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.xwt.tools.ui.designer.databinding.ui.IGroup#setInput(java.lang.Object)
 	 */
 	public void setInput(Object input) {
 		if (input == null || !(input instanceof EditPart)) {
 			return;
 		}
 		this.input = input;
 		EditPart editPart = (EditPart) input;
 		List<BindingInfo> bindings = BindingHelper.getBindings(editPart);
 		if (bindings != null && bindingsTableGroup != null) {
 			bindingsTableGroup.setInput(bindings);
 		}
 		if (targetComp != null) {
 			targetComp.setRootEditPart(editPart);
 		}
 		if (modelComp != null) {
 			modelComp.setRootEditPart(editPart);
 		}
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2006, 2010 Soyatec (http://www.soyatec.com) and others.
	* 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
	*
	* Contributors:
	* Soyatec - initial API and implementation
	*******************************************************************************/
	package org.eclipse.xwt.tools.ui.designer.databinding.ui;

	import java.beans.PropertyChangeEvent;
	import java.beans.PropertyChangeListener;
	import java.util.List;

	import org.eclipse.gef.EditPart;
	import org.eclipse.gef.commands.Command;
	import org.eclipse.gef.commands.CommandStack;
	import org.eclipse.jface.viewers.ISelectionChangedListener;
	import org.eclipse.jface.viewers.SelectionChangedEvent;
	import org.eclipse.jface.window.Window;
	import org.eclipse.swt.SWT;
	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.Event;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Listener;
	import org.eclipse.swt.widgets.Shell;
	import org.eclipse.xwt.tools.ui.designer.core.util.DisplayUtil;
	import org.eclipse.xwt.tools.ui.designer.databinding.BindingContext;
	import org.eclipse.xwt.tools.ui.designer.databinding.BindingHelper;
	import org.eclipse.xwt.tools.ui.designer.databinding.BindingInfo;
	import org.eclipse.xwt.tools.ui.designer.resources.ImageShop;

	/**
	* @author jliu (jin.liu@soyatec.com)
	*/
	public class DatabindingGroup implements IGroup {

	private ObserveTargetGroup targetComp;
	private ObserveModelGroup modelComp;
	private Button bindingAction;
	private BindingTableGroup bindingsTableGroup;
	private static final String ACTION_TOOLTIP_TEXT = "Create data binding use this selection";
	private static final String ACTION_TOOLTIP_MESSAGE = "Use Ctrl for create binding without dialog(if this is possible)";

	private Composite targetGroup;
	private Composite modelGroup;

	private CommandStack commandStack;
	private BindingContext bindingContext;

	private Object input;

	public DatabindingGroup(CommandStack commandStack, BindingContext bindingContext) {
	this.commandStack = commandStack;
	this.bindingContext = bindingContext;
	}

	public Composite createGroup(Composite control, int style) {
	Composite group = new Composite(control, SWT.NONE);
	GridLayout layout = new GridLayout();
	layout.numColumns = 3;
	group.setLayout(layout);
	Label label = new Label(group, SWT.NONE);
	label.setText("Bound properties");
	GridData gd = new GridData(GridData.FILL_HORIZONTAL);
	gd.horizontalIndent = 5;
	gd.horizontalSpan = 3;
	label.setLayoutData(gd);

	bindingsTableGroup = new BindingTableGroup(commandStack);
	Composite table = bindingsTableGroup.createGroup(group, SWT.NONE);
	GridData layoutData = new GridData(GridData.FILL_HORIZONTAL);
	layoutData.horizontalSpan = 3;
	table.setLayoutData(layoutData);
	bindingsTableGroup.getViewer().addSelectionChangedListener(new ISelectionChangedListener() {
	public void selectionChanged(SelectionChangedEvent event) {
	BindingInfo selection = bindingsTableGroup.getSelection();
	handleSelection(selection);
	}
	});

	GridData sepGd = new GridData(GridData.FILL_HORIZONTAL);
	sepGd.horizontalIndent = 5;
	sepGd.horizontalSpan = 3;
	new Label(group, SWT.SEPARATOR \| SWT.HORIZONTAL).setLayoutData(sepGd);

	targetComp = new ObserveTargetGroup(bindingContext, null);
	bindingContext.addPropertyChangeListener(new PropertyChangeListener() {
	public void propertyChange(PropertyChangeEvent evt) {
	updateBindingAction();
	}
	});
	targetGroup = targetComp.createGroup(group, SWT.NONE);
	targetGroup.setLayoutData(new GridData(GridData.FILL_BOTH));
	// targetGroup.setEnabled(false);
	targetGroup.setToolTipText("please select a operation");

	Composite separator = createButtonSeparator(group);
	int gdStyle = GridData.FILL_VERTICAL;
	separator.setLayoutData(new GridData(gdStyle));

	modelComp = new ObserveModelGroup(bindingContext, null);
	modelGroup = modelComp.createGroup(group, SWT.NONE);
	modelGroup.setLayoutData(new GridData(GridData.FILL_BOTH));
	// modelGroup.setEnabled(false);
	return group;
	}

	protected void handleSelection(BindingInfo binding) {
	if (binding == null) {
	return;
	}
	BindingContext bc = binding.getBindingContext();
	bindingContext.setModel(bc.getModel());
	bindingContext.setModelProperty(bc.getModelProperty());
	bindingContext.setTarget(bc.getTarget());
	bindingContext.setTargetProperty(bc.getTargetProperty());
	bindingAction.setEnabled(false);
	}

	private Composite createButtonSeparator(Composite parent) {
	Composite control = new Composite(parent, SWT.NONE);
	GridLayout layout = new GridLayout();
	layout.marginWidth = 0;
	layout.marginHeight = 0;
	layout.horizontalSpacing = 0;
	layout.verticalSpacing = 0;
	control.setLayout(layout);

	int orientation = SWT.SEPARATOR \| SWT.VERTICAL;
	int gdStyle = GridData.FILL_VERTICAL \| GridData.HORIZONTAL_ALIGN_CENTER;

	new Label(control, orientation).setLayoutData(new GridData(gdStyle));
	bindingAction = new Button(control, SWT.PUSH);
	bindingAction.setToolTipText(ACTION_TOOLTIP_TEXT + "\n" + ACTION_TOOLTIP_MESSAGE);
	bindingAction.setImage(ImageShop.get(ImageShop.IMG_BINDING_ADD));
	bindingAction.setEnabled(false);
	final Listener listener = new Listener() {
	private boolean useCtrl = false;

	public void handleEvent(Event e) {
	if (SWT.KeyDown == e.type) {
	if (!useCtrl && e.keyCode == SWT.CTRL) {
	useCtrl = true;
	}
	} else if (SWT.KeyUp == e.type) {
	if (useCtrl && e.keyCode == SWT.CTRL) {
	useCtrl = false;
	}
	} else if (SWT.Selection == e.type) {
	createDataBindings(useCtrl);
	} else if (SWT.Dispose == e.type) {
	e.display.removeFilter(SWT.KeyUp, this);
	e.display.removeFilter(SWT.KeyDown, this);
	}
	}
	};
	Display display = bindingAction.getDisplay();
	display.addFilter(SWT.KeyDown, listener);
	display.addFilter(SWT.KeyUp, listener);
	bindingAction.addListener(SWT.Selection, listener);
	bindingAction.addListener(SWT.Dispose, listener);
	new Label(control, orientation).setLayoutData(new GridData(gdStyle));
	return control;
	}

	protected void updateBindingAction() {
	if (bindingAction == null \|\| bindingAction.isDisposed()) {
	return;
	}
	bindingAction.setEnabled(bindingContext.isValid());
	}

	protected void createDataBindings(boolean useCtrl) {
	BindingInfo bindingInfo = new BindingInfo(bindingContext);
	if (useCtrl) {
	createBinding(bindingInfo);
	} else {
	AdvancedBindingDialog dialog = new AdvancedBindingDialog(new Shell(), bindingInfo);
	if (dialog.open() == Window.OK) {
	createBinding(bindingInfo);
	}
	}
	}

	private void createBinding(BindingInfo bindingInfo) {
	Command bindCmd = bindingInfo.bindWithCommand();
	if (bindCmd != null) {
	if (commandStack != null) {
	commandStack.execute(bindCmd);
	} else if (bindCmd.canExecute()) {
	bindCmd.execute();
	}
	if (input == null \|\| !(input instanceof EditPart)) {
	return;
	}
	DisplayUtil.asyncExec(new Runnable() {
	public void run() {
	List<BindingInfo> bindings = BindingHelper.getBindings((EditPart) input);
	bindingsTableGroup.setInput(bindings);
	}
	});
	}
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.xwt.tools.ui.designer.databinding.ui.IGroup#setInput(java.lang.Object)
	*/
	public void setInput(Object input) {
	if (input == null \|\| !(input instanceof EditPart)) {
	return;
	}
	this.input = input;
	EditPart editPart = (EditPart) input;
	List<BindingInfo> bindings = BindingHelper.getBindings(editPart);
	if (bindings != null && bindingsTableGroup != null) {
	bindingsTableGroup.setInput(bindings);
	}
	if (targetComp != null) {
	targetComp.setRootEditPart(editPart);
	}
	if (modelComp != null) {
	modelComp.setRootEditPart(editPart);
	}
	}

	}