/*
* 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.form.items;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.jbpm.formapi.client.FormBuilderException;
import org.jbpm.formapi.client.effect.FBFormEffect;
import org.jbpm.formapi.client.form.FBFormItem;
import org.jbpm.formapi.client.form.LayoutFormItem;
import org.jbpm.formapi.client.form.PhantomPanel;
import org.jbpm.formapi.shared.api.FormItemRepresentation;
import org.jbpm.formapi.shared.api.items.FlowPanelRepresentation;
import org.jbpm.formbuilder.client.FormBuilderGlobals;
import org.jbpm.formbuilder.client.messages.I18NConstants;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.HasWidgets;
import com.google.gwt.user.client.ui.Widget;
import com.gwtent.reflection.client.Reflectable;
/**
* UI form layout item. Represents a flow layout
*/
@Reflectable
public class FlowLayoutFormItem extends LayoutFormItem {
private final I18NConstants i18n = FormBuilderGlobals.getInstance().getI18n();
private FlowPanel panel = new FlowPanel() {
@Override
public boolean remove(Widget w) {
if (w instanceof FBFormItem) {
removeItem((FBFormItem) w);
}
return super.remove(w);
}
};
private String cssClassName;
private String id;
public FlowLayoutFormItem() {
this(new ArrayList<FBFormEffect>());
}
public FlowLayoutFormItem(List<FBFormEffect> effects) {
super(effects);
setSize("190px", "90px");
panel.setSize(getWidth(), getHeight());
add(panel);
}
private void populate(FlowPanel panel) {
if (getHeight() != null) {
panel.setHeight(getHeight());
}
if (this.cssClassName != null) {
panel.setStyleName(cssClassName);
}
if (getWidth() != null) {
panel.setWidth(getWidth());
}
}
@Override
public Map<String, Object> getFormItemPropertiesMap() {
Map<String, Object> formItemPropertiesMap = new HashMap<String, Object>();
formItemPropertiesMap.put("height", getHeight());
formItemPropertiesMap.put("width", getWidth());
formItemPropertiesMap.put("cssClassName", this.cssClassName);
formItemPropertiesMap.put("id", id);
return formItemPropertiesMap;
}
@Override
public void saveValues(Map<String, Object> asPropertiesMap) {
this.setHeight(extractString(asPropertiesMap.get("height")));
this.setWidth(extractString(asPropertiesMap.get("width")));
this.cssClassName = extractString(asPropertiesMap.get("cssClassName"));
this.id = extractString(asPropertiesMap.get("id"));
populate(this.panel);
}
@Override
public FormItemRepresentation getRepresentation() {
FlowPanelRepresentation rep = super.getRepresentation(new FlowPanelRepresentation());
List<FormItemRepresentation> items = new ArrayList<FormItemRepresentation>();
for (FBFormItem item : getItems()) {
items.add(item.getRepresentation());
}
rep.setItems(items);
rep.setId(this.id);
rep.setCssClassName(this.cssClassName);
return rep;
}
@Override
public void populate(FormItemRepresentation rep) throws FormBuilderException {
if (!(rep instanceof FlowPanelRepresentation)) {
throw new FormBuilderException(i18n.RepNotOfType(rep.getClass().getName(), "FlowPanelRepresentation"));
}
super.populate(rep);
FlowPanelRepresentation frep = (FlowPanelRepresentation) rep;
this.cssClassName = frep.getCssClassName();
this.id = frep.getId();
super.getItems().clear();
populate(this.panel);
if (frep.getItems() != null) {
for (FormItemRepresentation item : frep.getItems()) {
add(super.createItem(item));
}
}
}
@Override
public FBFormItem cloneItem() {
FlowLayoutFormItem clone = super.cloneItem(new FlowLayoutFormItem(getFormEffects()));
clone.cssClassName = this.cssClassName;
clone.id = this.id;
clone.populate(clone.panel);
for (FBFormItem item : getItems()) {
clone.add(item.cloneItem());
}
return clone;
}
@Override
public Widget cloneDisplay(Map<String, Object> data) {
FlowPanel fp = new FlowPanel();
populate(fp);
super.populateActions(fp.getElement());
for (FBFormItem item : getItems()) {
fp.add(item.cloneDisplay(data));
}
return fp;
}
@Override
public HasWidgets getPanel() {
return this.panel;
}
@Override
public boolean add(FBFormItem item) {
this.panel.add(item);
return super.add(item);
}
@Override
public void add(PhantomPanel phantom, int x, int y) {
for (int index = 0; index < panel.getWidgetCount(); index++) {
Widget item = panel.getWidget(index);
int left = item.getAbsoluteLeft();
int right = left + item.getOffsetWidth();
int top = item.getAbsoluteTop();
int bottom = top + item.getOffsetHeight();
if (x > left && x < right && y > top && y < bottom) {
panel.insert(phantom, index);
break;
}
}
}
@Override
public void replacePhantom(FBFormItem item) {
PhantomPanel phantom = null;
for (Widget widget : panel) {
if (widget instanceof PhantomPanel) {
phantom = (PhantomPanel) widget;
break;
}
}
if (phantom != null) {
int index = panel.getWidgetIndex(phantom);
super.insert(index, item);
remove(phantom);
} else {
add(item);
}
}
}