Motion Paths in WPF 4 using Expression Blend 4
原文 Motion Paths in WPF 4 using Expression Blend 4
The PathListBox control is a new addition to the Expression Blend 4 SDK, and allows the elements inside a ListBox to lay out along any Path control shape. In this article, we will see how to align some objects to a given path using the ‘PathListBox’ control in WPF 4.0 and Expression Blend 4. We will also see how to animate these objects using Visual states in WPF. To use Visual States, you will need some basic knowledge of Behaviors. Read my previous article Silverlight 4: Introduction to Behaviors to learn more.
So let’s start by creating a WPF application using Microsoft Expression Blend 4.0 and call this application as ‘WPFMotionPathExample’:
Once the WPF application is created, change its ‘Height’ and ‘Width’ to ‘500’ and ‘600’ respectively. Change the background color of the ‘Grid’ layout to ‘Black’.
Now draw an ‘Ellipse’ on the art board as shown below – (I am using a height of 300 and width of 400 for the ellipse control).
After drawing the ellipse on the art board, go to the ‘Assets’ window in the controls section and add a control ‘PathListBox’ on the ‘MainWindow’ as shown below:
After selecting the ‘PathListBox’ control, go to the Properties window and find a section ‘Layout Paths’ as shown below :
Now drag the ‘Circle’ (Select an object to use as a LayoutPath) highlighted by a yellow color square (as shown in the above diagram) over the ‘Ellipse’ and click on the ‘Ellipse’. Now if you check your ‘Layout Paths’ section in the properties window, you will see your ellipse got added as a layout path, as shown below:
Now to align the objects around the layout path which is an ‘Ellipse’, we need to add objects on our WPF form. This can be done in multiple ways. You can draw an object from ‘Asset’ window and align it to our path or you can add sample data and align it to our path and you can also align a ‘Text’ to our path.
For the first demonstration, we will use sample data which will hold collection of images to be aligned to our layout path. To add the sample data, let’s open the ‘Data’ window from the Windows menu.
Now click on ‘Create Sample Data’ as shown below:
This will ask you to create –
1) New sample data.
2) Import Sample Data from XML.
3) Create sample data from class.
Let’s click the option ‘New Sample Data’. This will create a collection with two properties. We can either change the data type or can add/remove the properties. You will see a dialog which will ask you the scope of the ‘New Sample Data’. Keep the default settings ‘as-is’ and give a name to our new sample data as ‘DummyDS’ as shown below:
Click the ‘OK’ button. Now from the ‘Collection,’ right click ‘Property2’ and click ‘Remove Property2’. Rename ‘Property1’ as ‘Products’ and change its data type to ‘Image’. You will be asked to browse the folder where all the images are located. Browse the folder as shown below:
Now select ‘PathListBox’ and drag and drop ‘Collection’ on the ‘PathListBox’ from the ‘Data’ window. Now if you observe your Ellipse, you will see all the ‘Product’ images aligned to our ‘Ellipse Path’ as shown below:
Now let’s create some ‘Visual States’ for our demonstration and handle those states using the behaviors in WPF 4.0.
To add the states into our WPF application, we need to open a ‘States’ window from ‘Windows’ menu. Once you open a State window, let’s click on ‘Add State Group’ as shown below:
Rename your state group as ‘MotionPathStates’ as shown above. Now click an icon highlighted in yellow called ‘Add State’. Rename this state as ‘MouseOverState’. For this ‘MouseOverState’ visual state, we will rotate our products by 360 degree.
To do so, select ‘PathListBox’ > Go to properties window > Select ‘Transform’ section > In the ‘Render Transform’ group, select ‘Rotate’ group and make its ‘Angle’ property value 360 as shown below:
Now let’s get back to our ‘State’ window and add a transition to our ‘MouseOverState’ and change its duration to 5 seconds as shown below:
Now we are done with the Visual State. Let’s handle this visual state using a mouse event. For handling visual states in WPF 4.0 or Silverlight 4.0, we have a very nice feature called ‘Behaviors’. Read my previous article Silverlight 4: Introduction to Behaviors to learn more.
Now let’s handle our states using WPF 4.0 ‘Behavior’.
For this demonstration, we will add a behavior ‘GoToStateAction’ to our ‘Ellipse’ and handle the state on ‘Mouse Enter’ event of the ‘Ellipse’. To add the behavior, let’s go to the ‘Asset’ window. From the ‘Behaviors’ group, drag and drop the behavior ‘GoToStateAction’ on the Ellipse as shown below:
Once you are done with this step, now go to your properties window and change the properties of the behavior as shown below :
As shown above, change the ‘Event Name’ property to ‘MouseEnter’ and ‘State name’ property to ‘MouseOverState’. Now save your application and press ‘F5’. You will see that when you move your mouse into the Ellipse, the animation starts.
I have shown you a simple demo of Visual state. You can create multiple Visual States and handle them on different events of Ellipse by simply using ‘GoToStateAction’ behavior.
Conclusion - In this article, we saw how to use ‘PathListBox’ control to align objects on a given path in WPF 4.0, by using Microsoft Expression Blend 4.0. Similarly, we can also have multiple layout paths on which we can align our objects as per our requirements. In the next article, I will demonstrate how to align text on a given path using Silverlight 4 and Expression Blend 4.
The entire source code of this article can be downloaded over here
Motion Paths in WPF 4 using Expression Blend 4的更多相关文章
- WPF和Expression Blend开发实例:一个样式实现的数字输入框
原文:WPF和Expression Blend开发实例:一个样式实现的数字输入框 今天来一个比较奇淫技巧的手法,很少人用,同时也不推荐太过频繁的使用. 先上样式: <Style x:Key=&q ...
- WPF和Expression Blend开发实例:模拟QQ登陆界面打开和关闭特效
不管在消费者的心中腾讯是一个怎么样的模仿者抄袭者的形象,但是腾讯在软件交互上的设计一直是一流的.正如某位已故的知名产品经理所说的:设计并非外观怎样,感觉如何.设计的是产品的工作原理.我觉得腾讯掌握了其 ...
- Expression Blend创建自定义按钮
在 Expression Blend 中,我们可以在美工板上绘制形状.路径和控件,然后修改其外观和行为,从而直观地设计应用程序.Button按钮也是Expression Blend最常用的控件之一,在 ...
- Expression Blend制作自定义按钮(转)
来源:http://www.cnblogs.com/iChina/archive/2011/11/25/2262854.html Expression Blend制作自定义按钮 1.从Blend工具箱 ...
- 【翻译】用 Expression Blend 创建酷炫的 Button
原文:Creating “Cool” Buttons with Expression Blend Author: Alex 在本文中,我们将考虑在Expression Blend用几种方法来创建酷炫的 ...
- Expression Blend实例中文教程(9) - 行为快速入门Behaviors
在Blend强大的设计功能支持下,设计人员和开发人员可以无代码实现Silverlight/WPF动画效果,例如上文介绍的StoryBoard,就是一个典型例子,设计人员和开发人员仅需提供必要元素,即可 ...
- Expression Blend实例中文教程(1) - 开篇
随着计算机软件开发分工细节化,微软对已有的产品线进行了调整,在保持原有经典开发工具Visual Studio基础上,又推出了一套新的设计开发工具系列,Expression Studio. Expres ...
- Expression Blend实例中文教程系列
Expression Blend实例中文教程系列 本系列文章均转载:银光中国 时间:2010-04-09 09:20责任编辑:银光中国网 点击:次 Expression Blend实例中文教程系列由C ...
- 用 Expression Blend 创建酷炫的 Button
原文:用 Expression Blend 创建酷炫的 Button 原文:Creating "Cool" Buttons with Expression Blend Author ...
随机推荐
- TI_DSP_SRIO - Doorbell原理
前文介绍到SRIO有多种类型的包,当中包括了Doorbell包,Doorbell是一种高速的通知类型的短消息,包头和携带信息都非常短,用于master srio设备通知slave srio设备,可用于 ...
- hdfs的基本原理和基本操作总结
hdfs基本原理 Hadoop分布式文件系统(HDFS)被设计成适合执行在通用硬件(commodity hardware)上的分布式文件系统.它和现有的分布式文件系统有非常多共同点. 但同一时候,它和 ...
- html5和html的区别是什么(精问)
html5和html的区别是什么(精问) 一.总结 一句话总结:html5:简洁(文档生命,链接引入) 语义化(语义化标签) API(canvas,地理位置等) 一些标签(input新类型) 二. ...
- log4erl Configuration
https://github.com/ahmednawras/log4erl/blob/master/CONFIGURATION.txt Configuration Guide: ========== ...
- erlang版本的protobuf
这两天看了google protocol buffers的文档,protobuf非常不错,解决了一直以来遇到的消息版本不同的问题,对项目中的开发非常有帮助. 最近在学习erlang,官方只有java. ...
- MySQL执行计划分析
原文:MySQL执行计划分析 一. 执行计划能告诉我们什么? SQL如何使用索引 联接查询的执行顺序 查询扫描的数据函数 二. 执行计划中的内容 SQL执行计划的输出可能为多行,每一行代表对一个数据库 ...
- maven webcollector java.lang.ClassNotFoundException: org.openqa.selenium.remote.SessionNotFoundException
使用webcollector时出现了如下异常 分析是依赖的问题,不仅要添加selenium-java,还要添加htmlunit-driver的依赖,注意不要添加成selenium-htmlunit-d ...
- Hibernate——(3)主键生成方式
一.Hibernate中常用的主键生成方式有如下几种: 1)identity: 用于自动生成主键方式,除了 Oracle 不支持,其他数据库一般都支持(较常用) 2)sequence: Oracle ...
- EMES信息化制造系统的概念
EMES是指,信息化制造系统.它由五个功能子系统构成,分别是:企业信息平台子系统(EIP),物料实时信息系统(MRI).能源实时信息系统(PRI).设备实时信息系统(EMR).质量实时信息系统(QRI ...
- bash实现多进程运行
之前一段时间,发现线上日志服务器总是会突然丢失日志,碰到问题时搞的很被动.联系运维同学,又总是被往后推(后来看了一下日志归档脚本,运维同学写的bug).索性自己写了一个脚本,添加到crontab任务中 ...