You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@pivot.apache.org by gb...@apache.org on 2009/05/21 22:48:09 UTC
svn commit: r777256 - in
/incubator/pivot/trunk/tutorials/src/pivot/tutorials/progress: Meters.java
meters.wtkx
Author: gbrown
Date: Thu May 21 20:48:08 2009
New Revision: 777256
URL: http://svn.apache.org/viewvc?rev=777256&view=rev
Log:
Add a Meter tutorial.
Added:
incubator/pivot/trunk/tutorials/src/pivot/tutorials/progress/Meters.java
incubator/pivot/trunk/tutorials/src/pivot/tutorials/progress/meters.wtkx
Added: incubator/pivot/trunk/tutorials/src/pivot/tutorials/progress/Meters.java
URL: http://svn.apache.org/viewvc/incubator/pivot/trunk/tutorials/src/pivot/tutorials/progress/Meters.java?rev=777256&view=auto
==============================================================================
--- incubator/pivot/trunk/tutorials/src/pivot/tutorials/progress/Meters.java (added)
+++ incubator/pivot/trunk/tutorials/src/pivot/tutorials/progress/Meters.java Thu May 21 20:48:08 2009
@@ -0,0 +1,120 @@
+package pivot.tutorials.progress;
+
+import pivot.collections.Dictionary;
+import pivot.util.concurrent.Task;
+import pivot.util.concurrent.TaskExecutionException;
+import pivot.util.concurrent.TaskListener;
+import pivot.wtk.Application;
+import pivot.wtk.ApplicationContext;
+import pivot.wtk.Button;
+import pivot.wtk.ButtonPressListener;
+import pivot.wtk.DesktopApplicationContext;
+import pivot.wtk.Display;
+import pivot.wtk.Meter;
+import pivot.wtk.PushButton;
+import pivot.wtk.TaskAdapter;
+import pivot.wtk.Window;
+import pivot.wtkx.Bindable;
+
+public class Meters extends Bindable implements Application {
+ public class SampleTask extends Task<Void> {
+ private int percentage = 0;
+
+ public Void execute() throws TaskExecutionException {
+ // Simulate a long-running operation
+ percentage = 0;
+
+ while (percentage < 100
+ && !abort) {
+ try {
+ Thread.sleep(100);
+ percentage++;
+
+ // Update the meter on the UI thread
+ ApplicationContext.queueCallback(new Runnable() {
+ public void run() {
+ meter.setPercentage((double)percentage / 100);
+ }
+ });
+ } catch(InterruptedException exception) {
+ throw new TaskExecutionException(exception);
+ }
+ }
+
+ return null;
+ }
+ }
+
+ @Load(resourceName="meters.wtkx") private Window window;
+ @Bind(fieldName="window") private Meter meter;
+ @Bind(fieldName="window") private PushButton progressButton;
+
+ private SampleTask sampleTask = null;
+
+ public void startup(Display display, Dictionary<String, String> properties)
+ throws Exception {
+ bind();
+
+ progressButton.getButtonPressListeners().add(new ButtonPressListener() {
+ public void buttonPressed(Button button) {
+ if (sampleTask == null) {
+ // Create and start the simulated task; wrap it in a
+ // task adapter so the result handlers are called on the
+ // UI thread
+ sampleTask = new SampleTask();
+ sampleTask.execute(new TaskAdapter<Void>(new TaskListener<Void>() {
+ public void taskExecuted(Task<Void> task) {
+ reset();
+ }
+
+ public void executeFailed(Task<Void> task) {
+ reset();
+ }
+
+ private void reset() {
+ // Reset the meter and button
+ sampleTask = null;
+ meter.setPercentage(0);
+ updateProgressButton();
+ }
+ }));
+ } else {
+ // Cancel the task
+ sampleTask.abort();
+ }
+
+ updateProgressButton();
+ }
+ });
+
+ updateProgressButton();
+
+ window.open(display);
+ }
+
+ public boolean shutdown(boolean optional) {
+ if (window != null) {
+ window.close();
+ }
+
+ return false;
+ }
+
+ public void suspend() {
+ }
+
+ public void resume() {
+ }
+
+ private void updateProgressButton() {
+ if (sampleTask == null) {
+ progressButton.setButtonData("Start");
+ } else {
+ progressButton.setButtonData("Cancel");
+ }
+ }
+
+ public static void main(String[] args) {
+ DesktopApplicationContext.main(Meters.class, args);
+ }
+}
Added: incubator/pivot/trunk/tutorials/src/pivot/tutorials/progress/meters.wtkx
URL: http://svn.apache.org/viewvc/incubator/pivot/trunk/tutorials/src/pivot/tutorials/progress/meters.wtkx?rev=777256&view=auto
==============================================================================
--- incubator/pivot/trunk/tutorials/src/pivot/tutorials/progress/meters.wtkx (added)
+++ incubator/pivot/trunk/tutorials/src/pivot/tutorials/progress/meters.wtkx Thu May 21 20:48:08 2009
@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+Licensed to the Apache Software Foundation (ASF) under one or more
+contributor license agreements. See the NOTICE file distributed with
+this work for additional information regarding copyright ownership.
+The ASF licenses this file to you 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.
+-->
+
+<Window title="Activity Indicators" maximized="true"
+ xmlns:wtkx="http://incubator.apache.org/pivot/wtkx/1.1" xmlns="pivot.wtk">
+ <content>
+ <TablePane>
+ <columns>
+ <TablePane.Column width="1*"/>
+ </columns>
+ <rows>
+ <TablePane.Row height="1*">
+ <Border>
+ <content>
+ <FlowPane styles="{horizontalAlignment:'center', verticalAlignment:'center'}">
+ <Label text="Progress:"/>
+ <Meter wtkx:id="meter" preferredWidth="200" preferredHeight="16"/>
+ </FlowPane>
+ </content>
+ </Border>
+ </TablePane.Row>
+ <TablePane.Row height="-1">
+ <FlowPane styles="{horizontalAlignment:'center', padding:6}">
+ <PushButton wtkx:id="progressButton" styles="{preferredAspectRatio:3}"/>
+ </FlowPane>
+ </TablePane.Row>
+ </rows>
+ </TablePane>
+ </content>
+</Window>