/* * 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. */ package com.smartgwt.client.widgets.drawing; import com.smartgwt.client.event.*; import com.smartgwt.client.core.*; import com.smartgwt.client.types.*; import com.smartgwt.client.data.*; import com.smartgwt.client.data.events.*; import com.smartgwt.client.rpc.*; import com.smartgwt.client.widgets.*; import com.smartgwt.client.widgets.events.*; import com.smartgwt.client.widgets.form.*; import com.smartgwt.client.widgets.form.validator.*; import com.smartgwt.client.widgets.form.fields.*; import com.smartgwt.client.widgets.tile.*; import com.smartgwt.client.widgets.tile.events.*; import com.smartgwt.client.widgets.grid.*; import com.smartgwt.client.widgets.grid.events.*; import com.smartgwt.client.widgets.chart.*; import com.smartgwt.client.widgets.layout.*; import com.smartgwt.client.widgets.layout.events.*; import com.smartgwt.client.widgets.menu.*; import com.smartgwt.client.widgets.tab.*; import com.smartgwt.client.widgets.toolbar.*; import com.smartgwt.client.widgets.tree.*; import com.smartgwt.client.widgets.tree.events.*; import com.smartgwt.client.widgets.viewer.*; import com.smartgwt.client.widgets.calendar.*; import com.smartgwt.client.widgets.calendar.events.*; import com.smartgwt.client.widgets.cube.*; import java.util.Date; import java.util.List; import java.util.Map; import java.util.HashMap; import com.google.gwt.user.client.ui.Widget; import com.google.gwt.core.client.JavaScriptObject; import com.google.gwt.user.client.Element; import com.smartgwt.client.util.*; import com.google.gwt.event.shared.*; import com.google.gwt.event.shared.HasHandlers; /** * DrawItem subclass to render a connector between two points. If the points are aligned on one axis, this connector will * draw as a straight line. If the points are offset on both axes and there is enough space, the connector will draw short * horizontal segments from the start and end points, and a diagonal segment connecting the ends of these 'margin' * segments. */ public class DrawLinePath extends DrawPath { public static DrawLinePath getOrCreateRef(JavaScriptObject jsObj) { if(jsObj == null) return null; BaseClass obj = BaseClass.getRef(jsObj); if(obj != null) { return (DrawLinePath) obj; } else { return new DrawLinePath(jsObj); } } public DrawLinePath(){ scClassName = "DrawLinePath"; } public DrawLinePath(JavaScriptObject jsObj){ super(jsObj); } public native JavaScriptObject create()/*-{ var config = this.@com.smartgwt.client.core.BaseClass::getConfig()(); var scClassName = this.@com.smartgwt.client.core.BaseClass::scClassName; return $wnd.isc[scClassName].create(config); }-*/; // ********************* Properties / Attributes *********************** /** * Style of arrowhead to draw at the end of the line or path. * * @param endArrow endArrow Default value is "open", IRW */ public void setEndArrow(ArrowStyle endArrow) { setAttribute("endArrow", endArrow == null ? null : endArrow.getValue(), true); } /** * Style of arrowhead to draw at the end of the line or path. * * * @return ArrowStyle */ public ArrowStyle getEndArrow() { return EnumUtil.getEnum(ArrowStyle.values(), getAttribute("endArrow")); } /** * Ending left coordinate of the line. Overrides left coordinate of {@link * com.smartgwt.client.widgets.drawing.DrawLinePath#getEndPoint endPoint} if both are set. * * @param endLeft endLeft Default value is 0 , IRW * @throws IllegalStateException this property cannot be changed after the underlying component has been created */ public void setEndLeft(int endLeft) throws IllegalStateException { setAttribute("endLeft", endLeft, false); } /** * Ending left coordinate of the line. Overrides left coordinate of {@link * com.smartgwt.client.widgets.drawing.DrawLinePath#getEndPoint endPoint} if both are set. * * * @return int */ public int getEndLeft() { return getAttributeAsInt("endLeft"); } /** * End point of the line * * <br><br>If this method is called after the component has been drawn/initialized: * Update the endPoint * * @param endPoint left coordinate for end point, in pixels. Default value is [100,100] */ public void setEndPoint(Point endPoint) { setAttribute("endPoint", endPoint.getJsObj(), true); } /** * End point of the line * * * @return Point */ public Point getEndPoint() { return new Point(getAttributeAsJavaScriptObject("endPoint")); } /** * Ending top coordinate of the line. Overrides top coordinate of {@link * com.smartgwt.client.widgets.drawing.DrawLinePath#getEndPoint endPoint} if both are set. * * @param endTop endTop Default value is 0 , IRW * @throws IllegalStateException this property cannot be changed after the underlying component has been created */ public void setEndTop(int endTop) throws IllegalStateException { setAttribute("endTop", endTop, false); } /** * Ending top coordinate of the line. Overrides top coordinate of {@link * com.smartgwt.client.widgets.drawing.DrawLinePath#getEndPoint endPoint} if both are set. * * * @return int */ public int getEndTop() { return getAttributeAsInt("endTop"); } /** * Starting left coordinate of the line. Overrides left coordinate of {@link * com.smartgwt.client.widgets.drawing.DrawLinePath#getStartPoint startPoint} if both are set. * * @param startLeft startLeft Default value is 0 , IRW * @throws IllegalStateException this property cannot be changed after the underlying component has been created */ public void setStartLeft(int startLeft) throws IllegalStateException { setAttribute("startLeft", startLeft, false); } /** * Starting left coordinate of the line. Overrides left coordinate of {@link * com.smartgwt.client.widgets.drawing.DrawLinePath#getStartPoint startPoint} if both are set. * * * @return int */ public int getStartLeft() { return getAttributeAsInt("startLeft"); } /** * Start point of the line * * <br><br>If this method is called after the component has been drawn/initialized: * Update the startPoint * * @param startPoint left coordinate for start point, in pixels. Default value is [0,0] */ public void setStartPoint(Point startPoint) { setAttribute("startPoint", startPoint.getJsObj(), true); } /** * Start point of the line * * * @return Point */ public Point getStartPoint() { return new Point(getAttributeAsJavaScriptObject("startPoint")); } /** * Starting top coordinate of the line. Overrides top coordinate of {@link * com.smartgwt.client.widgets.drawing.DrawLinePath#getStartPoint startPoint} if both are set. * * @param startTop startTop Default value is 0 , IRW * @throws IllegalStateException this property cannot be changed after the underlying component has been created */ public void setStartTop(int startTop) throws IllegalStateException { setAttribute("startTop", startTop, false); } /** * Starting top coordinate of the line. Overrides top coordinate of {@link * com.smartgwt.client.widgets.drawing.DrawLinePath#getStartPoint startPoint} if both are set. * * * @return int */ public int getStartTop() { return getAttributeAsInt("startTop"); } /** * Length of the horizontal "tail" between the start and end points of this LinePath and the diagonal connecting segment * * @param tailSize tailSize Default value is 30 * @throws IllegalStateException this property cannot be changed after the underlying component has been created */ public void setTailSize(int tailSize) throws IllegalStateException { setAttribute("tailSize", tailSize, false); } /** * Length of the horizontal "tail" between the start and end points of this LinePath and the diagonal connecting segment * * * @return int */ public int getTailSize() { return getAttributeAsInt("tailSize"); } // ********************* Methods *********************** /** * Executed when dragging first starts. Your widget can use this opportunity to set things up for the drag, such as setting * the drag tracker. Returning false from this event handler will cancel the drag action entirely. <p> A drag action is * considered to be begin when the mouse has moved {@link com.smartgwt.client.widgets.Canvas#getDragStartDistance * dragStartDistance} with the left mouse down. * * @return false to cancel drag action. * @see <a href="http://www.smartclient.com/smartgwt/showcase/#effects_dd_pan" target="examples">Drag pan Example</a> */ public native Boolean dragStart() /*-{ var self = this.@com.smartgwt.client.core.BaseClass::getOrCreateJsObj()(); var retVal =self.dragStart(); if(retVal == null || retVal === undefined) { return null; } else { return @com.smartgwt.client.util.JSOHelper::toBoolean(Z)(retVal); } }-*/; /** * Move both the start and end points of the line by a relative amount. * @param left change to left coordinate in pixels * @param top change to top coordinate in pixels */ public native void moveBy(int left, int top) /*-{ var self = this.@com.smartgwt.client.core.BaseClass::getOrCreateJsObj()(); self.moveBy(left, top); }-*/; // ********************* Static Methods *********************** // *********************************************************** }