/*
* Copyright 2011 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jbpm.formbuilder.client.effect;
import java.util.HashMap;
import java.util.Map;
import org.jbpm.formapi.client.CommonGlobals;
import org.jbpm.formapi.client.effect.FBFormEffect;
import org.jbpm.formapi.client.form.FBFormItem;
import org.jbpm.formapi.common.handler.ResizeEvent;
import org.jbpm.formapi.common.handler.ResizeEventHandler;
import org.jbpm.formapi.common.panels.ResizablePanel;
import org.jbpm.formbuilder.client.FormBuilderGlobals;
import org.jbpm.formbuilder.client.bus.UndoableEvent;
import org.jbpm.formbuilder.client.bus.UndoableHandler;
import com.google.gwt.event.shared.EventBus;
import com.google.gwt.user.client.ui.Widget;
import com.gwtent.reflection.client.Reflectable;
/**
* Resizes a component
*/
@Reflectable
public class ResizeEffect extends FBFormEffect {
private int widgetWidth;
private int widgetHeight;
public ResizeEffect() {
super(FormBuilderGlobals.getInstance().getI18n().ResizeEffectLabel(), false);
}
@Override
protected void createStyles() {
FBFormItem item = getItem();
widgetHeight = item.getOffsetHeight() + 20;
widgetWidth = item.getOffsetWidth() + 20;
Widget actualWidget = getItem().getWidget();
ResizablePanel resizable = new ResizablePanel(actualWidget, widgetWidth, widgetHeight);
resizable.addResizeHandler(new ResizeEventHandler() {
@Override
public void onResize(ResizeEvent event) {
undoableEvent(event, getItem());
getItem().clear();
getItem().setWidget(event.getWidget());
}
});
getItem().clear();
getItem().setWidget(resizable);
resizable.setSize("" + widgetWidth + "px", "" + widgetHeight + "px");
}
protected void undoableEvent(ResizeEvent event, FBFormItem item) {
Map<String, Object> dataSnapshot = new HashMap<String, Object>();
EventBus bus = CommonGlobals.getInstance().getEventBus();
dataSnapshot.put("item", item);
dataSnapshot.put("oldWidth", item.getWidth());
dataSnapshot.put("oldHeight", item.getHeight());
dataSnapshot.put("newWidth", "" + event.getWidth() + "px");
dataSnapshot.put("newHeight", "" + event.getHeight() + "px");
bus.fireEvent(new UndoableEvent(dataSnapshot, new UndoableHandler() {
@Override
public void onEvent(UndoableEvent event) { /* do nothing */ }
@Override
public void undoAction(UndoableEvent event) {
FBFormItem item = (FBFormItem) event.getData("item");
String oldWidth = (String) event.getData("oldWidth");
String oldHeight = (String) event.getData("oldHeight");
item.setSize(oldWidth, oldHeight);
}
@Override
public void doAction(UndoableEvent event) {
FBFormItem item = (FBFormItem) event.getData("item");
String newWidth = (String) event.getData("newWidth");
String newHeight = (String) event.getData("newHeight");
item.setSize(newWidth, newHeight);
}
}));
}
}