Pivot 1.5--TreeView 动态 tooltip

Pivot UI默认的Tooltip每个控件都是只有一个tooltipText属性。TreeView也是一样整个控件都只有一个tooltipText属性。如果要实现每个数的Node的提示都不一样，必须重载TreeView 组件，并实现自己的getTooltipText方法。如下所示实现的自定义TooltipTreeView类。

package dv.ui; import org.apache.pivot.collections.List; import org.apache.pivot.collections.Sequence; import org.apache.pivot.collections.Sequence.Tree.Path; import org.apache.pivot.wtk.Point; import org.apache.pivot.wtk.TreeView; import org.apache.pivot.wtk.content.TreeNode; public class TooltipTreeView extends TreeView { public TooltipTreeView() { // TODO Auto-generated constructor stub } public TooltipTreeView(List<?> treeData) { super(treeData); // TODO Auto-generated constructor stub } @Override public String getTooltipText() { // TODO Auto-generated method stub Point pt = getDisplay().getMouseLocation(); //System.out.println(1+pt.toString()); pt = mapPointFromAncestor(getDisplay(), pt); //System.out.println(2+pt.toString()); Path path = getNodeAt(pt.y); if( path != null) { TreeNode node = (TreeNode)Sequence.Tree.get(getTreeData(), path); return pt.toString() +"/r/n"+ path.toString()+"/r/n"+node.getText()+"/r/n/r/n"; } else return super.getTooltipText(); } }

 

下面的window.wtkx文件演示了如何使用TooltipTreeView类：

<?xml version="1.0" encoding="UTF-8"?> <Window xmlns:wtkx="http://pivot.apache.org/wtkx" xmlns="org.apache.pivot.wtk" xmlns:ui="dv.ui" maximized="true"> <content> <Border> <content> <BoxPane orientation="vertical" styles="{fill:true}"> <ui:TooltipTreeView wtkx:id="tree_view"> <treeData> <wtkx:include src="tree_data.wtkx" mce_src="tree_data.wtkx"></wtkx:include> </treeData> </ui:TooltipTreeView> </BoxPane> </content> </Border> </content> </Window>

tree_data.wtkx文件内容

<?xml version="1.0" encoding="UTF-8"?> <TreeBranch xmlns="org.apache.pivot.wtk.content"> <TreeBranch text="Activity" icon="org/apache/pivot/tutorials/folder.png"> <TreeBranch text="Games" icon="org/apache/pivot/tutorials/folder.png"> <TreeNode text="Foosball" icon="org/apache/pivot/tutorials/page_white.png"/> <TreeNode text="Ping Pong" icon="org/apache/pivot/tutorials/page_white.png"/> <TreeNode text="Air Hockey" icon="org/apache/pivot/tutorials/page_white.png"/> </TreeBranch> <TreeBranch text="Sports" icon="org/apache/pivot/tutorials/folder.png"> <TreeNode text="Baseball" icon="org/apache/pivot/tutorials/page_white.png"/> <TreeNode text="Basketball" icon="org/apache/pivot/tutorials/page_white.png"/> <TreeNode text="Football" icon="org/apache/pivot/tutorials/page_white.png"/> <TreeNode text="Ice Hockey" icon="org/apache/pivot/tutorials/page_white.png"/> <TreeNode text="Soccer" icon="org/apache/pivot/tutorials/page_white.png"/> <TreeNode text="Softball" icon="org/apache/pivot/tutorials/page_white.png"/> </TreeBranch> <TreeNode text="Camping" icon="org/apache/pivot/tutorials/page_white.png"/> <TreeNode text="Skiing" icon="org/apache/pivot/tutorials/page_white.png"/> </TreeBranch> <TreeBranch text="Occasion" icon="org/apache/pivot/tutorials/folder.png"> <TreeBranch text="Holidays" icon="org/apache/pivot/tutorials/folder.png"> <TreeNode text="Christmas" icon="org/apache/pivot/tutorials/page_white.png"/> <TreeNode text="Independence Day" icon="org/apache/pivot/tutorials/page_white.png"/> <TreeNode text="Labor Day" icon="org/apache/pivot/tutorials/page_white.png"/> <TreeNode text="New Year's Day" icon="org/apache/pivot/tutorials/page_white.png"/> <TreeNode text="President's Day" icon="org/apache/pivot/tutorials/page_white.png"/> <TreeNode text="Thanksgiving" icon="org/apache/pivot/tutorials/page_white.png"/> <TreeNode text="Valentine's Day" icon="org/apache/pivot/tutorials/page_white.png"/> <TreeNode text="Veteran's Day" icon="org/apache/pivot/tutorials/page_white.png"/> </TreeBranch> <TreeNode text="Anniversary" icon="org/apache/pivot/tutorials/page_white.png"/> <TreeNode text="Birthday" icon="org/apache/pivot/tutorials/page_white.png"/> <TreeNode text="Wedding" icon="org/apache/pivot/tutorials/page_white.png"/> </TreeBranch> <TreeBranch text="Location" icon="org/apache/pivot/tutorials/folder.png"> <TreeNode text="Africa" icon="org/apache/pivot/tutorials/folder.png"/> <TreeNode text="Antarctica" icon="org/apache/pivot/tutorials/folder.png"/> <TreeNode text="Asia" icon="org/apache/pivot/tutorials/folder.png"/> <TreeNode text="Australia" icon="org/apache/pivot/tutorials/folder.png"/> <TreeNode text="Europe" icon="org/apache/pivot/tutorials/folder.png"/> <TreeNode text="North America" icon="org/apache/pivot/tutorials/folder.png"/> <TreeBranch text="South America" icon="org/apache/pivot/tutorials/folder.png"> <TreeNode text="Peru" icon="org/apache/pivot/tutorials/page_white.png"/> </TreeBranch> </TreeBranch> </TreeBranch>

 

Test.java 主类：

import org.apache.pivot.collections.Map; import org.apache.pivot.collections.Sequence.Tree.Path; import org.apache.pivot.wtk.Application; import org.apache.pivot.wtk.ApplicationContext; import org.apache.pivot.wtk.Component; import org.apache.pivot.wtk.ComponentMouseListener; import org.apache.pivot.wtk.DesktopApplicationContext; import org.apache.pivot.wtk.Display; import org.apache.pivot.wtk.Point; import org.apache.pivot.wtk.TreeView; import org.apache.pivot.wtk.Window; import org.apache.pivot.wtkx.WTKXSerializer; public class Test implements Application { private Window window = null; public Test() { // TODO Auto-generated constructor stub } @Override public void resume() throws Exception { // TODO Auto-generated method stub } @Override public boolean shutdown(boolean optional) throws Exception { // TODO Auto-generated method stub return false; } @Override public void startup(Display display, Map<String, String> properties) throws Exception { // TODO Auto-generated method stub WTKXSerializer wtkxSerializer = new WTKXSerializer(); window = (Window) wtkxSerializer.readObject("window.wtkx"); window.open(display); } @Override public void suspend() throws Exception { // TODO Auto-generated method stub } /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub DesktopApplicationContext.main(Test.class, args); } }