/* * Smart GWT (GWT for SmartClient) * Copyright 2008 and beyond, Isomorphic Software, Inc. * * Smart GWT is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License version 3 * as published by the Free Software Foundation. Smart GWT is also * available under typical commercial license terms - see * http://smartclient.com/license * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. */ import com.google.gwt.user.client.Random; import com.smartgwt.client.types.*; import com.smartgwt.client.widgets.*; import com.smartgwt.client.widgets.form.DynamicForm; import com.smartgwt.client.widgets.form.fields.ButtonItem; import com.smartgwt.client.widgets.form.fields.StaticTextItem; import com.smartgwt.client.widgets.layout.HLayout; import com.smartgwt.client.widgets.layout.LayoutSpacer; import com.smartgwt.client.widgets.layout.VLayout; import com.smartgwt.client.widgets.layout.VStack; import com.google.gwt.core.client.EntryPoint; public class SimplePortalManualSample implements EntryPoint { //FCKEditor like colors private static String[] colors = new String[]{ "FF6600", "808000", "008000", "008080", "0000FF", "666699", "FF0000", "FF9900", "99CC00", "339966", "33CCCC", "3366FF", "800080", "969696", "FF00FF", "FFCC00", "FFFF00", "00FF00", "00FFFF", "00CCFF", "993366", "C0C0C0", "FF99CC", "FFCC99", "FFFF99", "CCFFCC", "CCFFFF", "99CCFF", "CC99FF", "FFFFFF" }; public void onModuleLoad() { final PortalLayout portalLayout = new PortalLayout(3); portalLayout.setWidth100(); portalLayout.setHeight100(); // create portlets... for (int i = 1; i <= 2; i++) { Portlet portlet = new Portlet(); portlet.setTitle("Portlet"); Label label = new Label(); label.setAlign(Alignment.CENTER); label.setLayoutAlign(VerticalAlignment.CENTER); label.setContents("Portlet contents"); label.setBackgroundColor(colors[Random.nextInt(colors.length - 1)]); portlet.addItem(label); portalLayout.addPortlet(portlet); } VLayout vLayout = new VLayout(15); vLayout.setMargin(10); final DynamicForm form = new DynamicForm(); form.setAutoWidth(); form.setNumCols(5); final StaticTextItem numColItem = new StaticTextItem(); numColItem.setTitle("Columns"); numColItem.setValue(portalLayout.getMembers().length); ButtonItem addColumn = new ButtonItem("addColumn", "Add Column"); addColumn.setIcon("silk/application_side_expand.png"); addColumn.setAutoFit(true); addColumn.setStartRow(false); addColumn.setEndRow(false); addColumn.addClickHandler(new com.smartgwt.client.widgets.form.fields.events.ClickHandler() { public void onClick(com.smartgwt.client.widgets.form.fields.events.ClickEvent event) { portalLayout.addMember(new PortalColumn()); numColItem.setValue(portalLayout.getMembers().length); } }); ButtonItem removeColumn = new ButtonItem("removeColumn", "Remove Column"); removeColumn.setIcon("silk/application_side_contract.png"); removeColumn.setAutoFit(true); removeColumn.setStartRow(false); removeColumn.setEndRow(false); removeColumn.addClickHandler(new com.smartgwt.client.widgets.form.fields.events.ClickHandler() { public void onClick(com.smartgwt.client.widgets.form.fields.events.ClickEvent event) { Canvas[] canvases = portalLayout.getMembers(); int numMembers = canvases.length; if (numMembers > 0) { Canvas lastMember = canvases[numMembers - 1]; portalLayout.removeMember(lastMember); numColItem.setValue(numMembers - 1); } } }); final ButtonItem addPortlet = new ButtonItem("addPortlet", "Add Portlet"); addPortlet.setIcon("silk/application_view_tile.png"); addPortlet.setAutoFit(true); addPortlet.setStartRow(false); addPortlet.setEndRow(false); addPortlet.addClickHandler(new com.smartgwt.client.widgets.form.fields.events.ClickHandler() { public void onClick(com.smartgwt.client.widgets.form.fields.events.ClickEvent event) { final Portlet newPortlet = new Portlet(); newPortlet.setTitle("Portlet "); Label label = new Label(); label.setAlign(Alignment.CENTER); label.setLayoutAlign(VerticalAlignment.CENTER); label.setContents("Portlet contents"); label.setBackgroundColor(colors[Random.nextInt(colors.length - 1)]); newPortlet.addItem(label); newPortlet.setVisible(false); PortalColumn column = portalLayout.addPortlet(newPortlet); // also insert a blank spacer element, which will trigger the built-in // animateMembers layout animation final LayoutSpacer placeHolder = new LayoutSpacer(); placeHolder.setRect(newPortlet.getRect()); column.addMember(placeHolder, 0); // add to top // create an outline around the clicked button final Canvas outline = new Canvas(); outline.setLeft(form.getAbsoluteLeft() + addPortlet.getLeft()); outline.setTop(form.getAbsoluteTop()); outline.setWidth(addPortlet.getWidth()); outline.setHeight(addPortlet.getHeight()); outline.setBorder("2px solid #8289A6"); outline.draw(); outline.bringToFront(); outline.animateRect(newPortlet.getPageLeft(), newPortlet.getPageTop(), newPortlet.getVisibleWidth(), newPortlet.getViewportHeight(), new AnimationCallback() { public void execute(boolean earlyFinish) { // callback at end of animation - destroy placeholder and outline; show the new portlet placeHolder.destroy(); outline.destroy(); newPortlet.show(); } }, 750); } }); form.setItems(numColItem, addPortlet, addColumn, removeColumn); vLayout.addMember(form); vLayout.addMember(portalLayout); vLayout.draw(); } /** * Portlet class definition */ private class Portlet extends Window { public Portlet() { setShowShadow(false); // enable predefined component animation setAnimateMinimize(true); // Window is draggable with "outline" appearance by default. // "target" is the solid appearance. setDragAppearance(DragAppearance.OUTLINE); setCanDrop(true); // customize the appearance and order of the controls in the window header setHeaderControls(HeaderControls.MINIMIZE_BUTTON, HeaderControls.HEADER_LABEL, new HeaderControl(HeaderControl.SETTINGS), new HeaderControl(HeaderControl.HELP), HeaderControls.CLOSE_BUTTON); // show either a shadow, or translucency, when dragging a portlet // (could do both at the same time, but these are not visually compatible effects) // setShowDragShadow(true); setDragOpacity(30); // these settings enable the portlet to autosize its height only to fit its contents // (since width is determined from the containing layout, not the portlet contents) setVPolicy(LayoutPolicy.NONE); setOverflow(Overflow.VISIBLE); } } /** * PortalColumn class definition */ private class PortalColumn extends VStack { public PortalColumn() { // leave some space between portlets setMembersMargin(6); // enable predefined component animation setAnimateMembers(true); setAnimateMemberTime(300); // enable drop handling setCanAcceptDrop(true); // change appearance of drag placeholder and drop indicator setDropLineThickness(4); Canvas dropLineProperties = new Canvas(); dropLineProperties.setBackgroundColor("aqua"); setDropLineProperties(dropLineProperties); setShowDragPlaceHolder(true); Canvas placeHolderProperties = new Canvas(); placeHolderProperties.setBorder("2px solid #8289A6"); setPlaceHolderProperties(placeHolderProperties); } } /** * PortalLayout class definition */ private class PortalLayout extends HLayout { public PortalLayout(int numColumns) { setMembersMargin(6); for (int i = 0; i < numColumns; i++) { addMember(new PortalColumn()); } } public PortalColumn addPortlet(Portlet portlet) { // find the column with the fewest portlets int fewestPortlets = Integer.MAX_VALUE; PortalColumn fewestPortletsColumn = null; for (int i = 0; i < getMembers().length; i++) { int numPortlets = ((PortalColumn) getMember(i)).getMembers().length; if (numPortlets < fewestPortlets) { fewestPortlets = numPortlets; fewestPortletsColumn = (PortalColumn) getMember(i); } } fewestPortletsColumn.addMember(portlet); return fewestPortletsColumn; } } }