Java tutorial
/* * Copyright (c) 2008-2016 Haulmont. * * 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 com.haulmont.cuba.web.toolkit.ui; import com.haulmont.cuba.web.toolkit.ui.client.groupbox.CubaGroupBoxServerRpc; import com.haulmont.cuba.web.toolkit.ui.client.groupbox.CubaGroupBoxState; import com.vaadin.shared.ui.MarginInfo; import com.vaadin.ui.Component; import com.vaadin.ui.ComponentContainer; import com.vaadin.ui.Layout; import com.vaadin.ui.Panel; import org.slf4j.LoggerFactory; import java.util.Iterator; public class CubaGroupBox extends Panel implements ComponentContainer { protected ExpandChangeHandler expandChangeHandler = null; public CubaGroupBox() { registerRpc((CubaGroupBoxServerRpc) expanded -> { if (getState().collapsable) { setExpanded(expanded); } }); Layout content = new CubaVerticalActionsLayout(); setContent(content); setWidth(100, Unit.PERCENTAGE); } @Override protected CubaGroupBoxState getState() { return (CubaGroupBoxState) super.getState(); } @Override protected CubaGroupBoxState getState(boolean markAsDirty) { return (CubaGroupBoxState) super.getState(markAsDirty); } @Override public void setWidth(float width, Unit unit) { super.setWidth(width, unit); if (getContent() != null) { if (width < 0) { getContent().setWidth(-1, Unit.PIXELS); } else { getContent().setWidth(100, Unit.PERCENTAGE); } } } @Override public void setHeight(float height, Unit unit) { super.setHeight(height, unit); if (getContent() != null) { if (height < 0) { getContent().setHeight(-1, Unit.PIXELS); } else { getContent().setHeight(100, Unit.PERCENTAGE); } } } @Override public void setContent(Component content) { super.setContent(content); if (content != null) { if (getHeight() < 0) { getContent().setHeight(-1, Unit.PIXELS); } else { getContent().setHeight(100, Unit.PERCENTAGE); } if (getWidth() < 0) { getContent().setWidth(-1, Unit.PIXELS); } else { getContent().setWidth(100, Unit.PERCENTAGE); } } } public boolean isExpanded() { return !getState(false).collapsable || getState(false).expanded; } public void setExpanded(boolean expanded) { if (expanded != getState(false).expanded) { getContent().setVisible(expanded); markAsDirtyRecursive(); } getState().expanded = expanded; if (expandChangeHandler != null) expandChangeHandler.expandStateChanged(expanded); } public boolean isCollapsable() { return getState(false).collapsable; } public void setCollapsable(boolean collapsable) { getState().collapsable = collapsable; if (collapsable) setExpanded(true); } public ExpandChangeHandler getExpandChangeHandler() { return expandChangeHandler; } public void setExpandChangeHandler(ExpandChangeHandler expandChangeHandler) { this.expandChangeHandler = expandChangeHandler; } @Override public ComponentContainer getContent() { return (ComponentContainer) super.getContent(); } @Override public void addComponent(Component c) { getContent().addComponent(c); } @Override public void addComponents(Component... components) { getContent().addComponents(components); } @Override public void removeComponent(Component c) { getContent().addComponent(c); } @Override public void removeAllComponents() { getContent().removeAllComponents(); } @Override public void replaceComponent(Component oldComponent, Component newComponent) { getContent().replaceComponent(oldComponent, newComponent); } @Override public Iterator<Component> getComponentIterator() { return getContent().iterator(); } @Override public void moveComponentsFrom(ComponentContainer source) { getContent().moveComponentsFrom(source); } @Override public void addListener(ComponentAttachListener listener) { getContent().addComponentAttachListener(listener); } @Override public void removeListener(ComponentAttachListener listener) { getContent().removeComponentAttachListener(listener); } @Override public void addListener(ComponentDetachListener listener) { getContent().addComponentDetachListener(listener); } @Override public void removeListener(ComponentDetachListener listener) { getContent().removeComponentDetachListener(listener); } @Override public void beforeClientResponse(boolean initial) { super.beforeClientResponse(initial); if (getState(false).showAsPanel && getState(false).outerMarginsBitmask != 0) { LoggerFactory.getLogger(CubaGroupBox.class) .warn("GroupBox's 'showAsPanel' and 'outerMargin' properties are set simultaneously"); } } public interface ExpandChangeHandler { void expandStateChanged(boolean expanded); } public void setShowAsPanel(boolean showAsPanel) { if (getState(false).showAsPanel != showAsPanel) { if (showAsPanel) { setPrimaryStyleName("v-panel"); } else { setPrimaryStyleName("c-groupbox"); } getState().showAsPanel = showAsPanel; } } public boolean isShowAsPanel() { return getState(false).showAsPanel; } public MarginInfo getOuterMargin() { return new MarginInfo(getState(false).outerMarginsBitmask); } public void setOuterMargin(MarginInfo marginInfo) { getState().outerMarginsBitmask = marginInfo.getBitMask(); } }