穩扎穩打Silverlight(66) - 5.0其它之自定義 XAML 擴展標記, 通過 XNA 處理聲音效果, 支持矢量打印, 統計連擊的次數

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穩扎穩打Silverlight(66) - 5.0其它之自定義 XAML 擴展標記, 通過 XNA 處理聲音效果, 支持矢量打印, 連擊的次數

作者：webabcd


介紹
Silverlight 5.0

• IMarkupExtension - 自定義 XAML 擴展標記
• 通過 XNA 處理聲音效果
• 支持矢量打印
• 統計連擊的次數

在線DEMO
http://www.cnblogs.com/webabcd/archive/2012/03/05/2379862.html


示例
1、IMarkupExtension（自定義 XAML 擴展標記）
XAML/ConcatMarkupExtension.cs

using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

using System.Xaml;

namespace Silverlight50.XAML
{
    /// <summary>
    /// 實現自定義 XAML 擴展標記，需要實現 IMarkupExtension<out T> 接口
    /// 自定義 XAML 擴展標記以“Extension”結尾，XAML 書寫時可以不必帶“Extension”
    /// 
    /// 本例中的 ConcatMarkup 擴展標記，用於合並兩個字符串
    /// </summary>
    public class ConcatMarkupExtension : IMarkupExtension<string>
    {
        public object String1 { get; set; }
        public object String2 { get; set; }

        /// <summary>
        /// 需要實現的方法，返回 ConcatMarkup 的計算結果
        /// </summary>
        public string ProvideValue(IServiceProvider serviceProvider)
        {
            return String1.ToString() + String2.ToString();
        }
    }
}

XAML/IMarkupExtension.xaml

<navigation:Page x:Class="Silverlight50.XAML.IMarkupExtension" 
           xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
           xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
           xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
           xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
           mc:Ignorable="d"
           xmlns:navigation="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Navigation"
           d:DesignWidth="640" d:DesignHeight="480"
           Title="IMarkupExtension Page"
                 
           xmlns:local="clr-namespace:Silverlight50.XAML">
    
    <Grid x:Name="LayoutRoot">

        <!--
            演示自定義的 XAML 擴展標記 ConcatMarkup，本例的結果是 wanglei
        -->
        <TextBlock Text="{local:ConcatMarkup String1=wang, String2=lei}" />

    </Grid>
</navigation:Page>

2、SoundEffectDemo（通過 XNA 處理聲音效果）
Media/SoundEffectDemo.xaml

<navigation:Page x:Class="Silverlight50.Media.SoundEffectDemo" 
           xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
           xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
           xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
           xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
           mc:Ignorable="d"
           xmlns:navigation="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Navigation"
           d:DesignWidth="640" d:DesignHeight="480"
           Title="SoundEffectDemo Page">
    <StackPanel HorizontalAlignment="Left">

        <StackPanel Orientation="Horizontal">
            <TextBlock Name="lblVolume" Width="100" Text="音量" TextAlignment="Center" />
            <TextBlock Name="lblPitch" Width="100" Text="高音" TextAlignment="Center" />
            <TextBlock Name="lblPan" Width="100" Text="平衡" TextAlignment="Center" />
        </StackPanel>

        <StackPanel Orientation="Horizontal">
            <Slider Name="sliderVolume" Width="100" Height="200" Orientation="Vertical" Minimum="0" Maximum="1" Value="0.5" />
            <Slider Name="sliderPitch" Width="100" Height="200" Orientation="Vertical" Maximum="1" Minimum="-1" Value="0" />
            <Slider Name="sliderPan"  Width="100" Height="200" Orientation="Vertical" Maximum="1" Minimum="-1" Value="0" />
        </StackPanel>

        <StackPanel Orientation="Horizontal">
            <TextBlock Name="txtVolume" Width="100" TextAlignment="Center" />
            <TextBlock Name="txtPitch" Width="100" TextAlignment="Center" />
            <TextBlock Name="txtPan" Width="100" TextAlignment="Center" />
        </StackPanel>

    </StackPanel>
</navigation:Page>

Media/SoundEffectDemo.xaml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Windows.Navigation;

using Microsoft.Xna.Framework.Audio;
using System.Windows.Resources;

namespace Silverlight50.Media
{
    /// <summary>
    /// Silverlight 5 支持通過 SoundEffect 處理 wav 音效文件
    /// 本例演示：如何控制音量，高低音，左右聲道平衡
    /// </summary>
    public partial class SoundEffectDemo : Page
    {
        /*
         * SoundEffect - 音效對象
         *     SoundEffect.Play(float volume, float pitch, float pan) - 播放音效
         *         volume - 音量值，0 到 1 之間
         *         pitch - 高音值， -1 到 1 之間，-1 是純低音，1 是純高音
         *         pan - 左右聲道平衡值，-1 到 1 之間，-1 是僅左聲道有聲，1 是僅右聲道有聲
         *     SoundEffect.Duration - 音效的時長
         *     SoundEffect.Name - 音效對象的名稱
         */

        /*
         * SoundEffectInstance - SoundEffect 的對象實例
         *     SoundEffect.CreateInstance() - 返回 SoundEffect 對象
         *     SoundEffectInstance.Volume - 音量值，0 到 1 之間
         *     SoundEffectInstance.Pitch - 高音值， -1 到 1 之間，-1 是純低音，1 是純高音
         *     SoundEffectInstance.Pan - 左右聲道平衡值，-1 到 1 之間，-1 是僅左聲道有聲，1 是僅右聲道有聲
         *     SoundEffectInstance.IsLooped - 是否循環播放
         *     SoundEffectInstance.Play() - 播放
         *     SoundEffectInstance.Pause() - 暫停
         *     SoundEffectInstance.Resume() - 繼續播放
         *     SoundEffectInstance.Stop() - 停止
         *     SoundEffectInstance.State - 返回音效對象的當前狀態 [Microsoft.Xna.Framework.Audio.SoundState 枚舉]
         *         SoundState.Playing - 正在播放狀態
         *         SoundState.Paused - 暫停狀態
         *         SoundState.Stopped - 停止狀態
         */

        /*
            SoundEffectInstance soundEffectInstance = soundEffect.CreateInstance();
            soundEffectInstance.Volume = 0.5f;
            soundEffectInstance.Pitch = -1f;
            soundEffectInstance.Pan = 0f;
            soundEffectInstance.IsLooped = true;
            soundEffectInstance.Play();
            soundEffectInstance.Pause();
            soundEffectInstance.Resume();
            soundEffectInstance.Stop();
            SoundState soundState = soundEffectInstance.State;
        */

        private SoundEffect _soundEffect;
        private SoundEffectInstance _instance;

        public SoundEffectDemo()
        {
            InitializeComponent();

            this.Loaded += new RoutedEventHandler(SoundEffectDemo_Loaded);
        }

        void SoundEffectDemo_Loaded(object sender, RoutedEventArgs e)
        {
            this.sliderVolume.ValueChanged += new RoutedPropertyChangedEventHandler<double>(sliderVolume_ValueChanged);
            this.sliderPitch.ValueChanged += new RoutedPropertyChangedEventHandler<double>(sliderPitch_ValueChanged);
            this.sliderPan.ValueChanged += new RoutedPropertyChangedEventHandler<double>(sliderPan_ValueChanged);

            // 獲取 wav 文件流
            StreamResourceInfo musicStream = Application.GetResourceStream(new Uri("Media/rockyou.wav", UriKind.RelativeOrAbsolute));
            _soundEffect = SoundEffect.FromStream(musicStream.Stream);

            // 設置音效的初始屬性
            _instance = _soundEffect.CreateInstance();
            _instance.IsLooped = true;
            _instance.Pitch = 0f;
            _instance.Pan = 0f;
            _instance.Volume = .5f;
            _instance.Play();
        }

        // 控制音量
        private void sliderVolume_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
        {
            _instance.Volume = (float)e.NewValue;
            txtVolume.Text = e.NewValue.ToString("f2");
        }

        // 控制高低音
        private void sliderPitch_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
        {
            _instance.Pitch = (float)e.NewValue; ;
            txtPitch.Text = e.NewValue.ToString("f2");
        }

        // 控制左右聲道平衡
        private void sliderPan_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
        {
            _instance.Pan = (float)e.NewValue; ;
            txtPan.Text = e.NewValue.ToString("f2");
        }
    }
}

3、VectorPrinting（支持矢量打印）

<navigation:Page x:Class="Silverlight50.Other.VectorPrinting" 
           xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
           xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
           xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
           xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
           mc:Ignorable="d"
           xmlns:navigation="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Navigation"
           d:DesignWidth="640" d:DesignHeight="480"
           Title="VectorPrinting Page">
    <Grid x:Name="LayoutRoot">

        <TextBlock Text="支持矢量打印了" />
        
    </Grid>
</navigation:Page>

4、ClickCount（統計連擊的次數）
Other/ClickCount.xaml

<navigation:Page x:Class="Silverlight50.Other.ClickCount" 
           xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
           xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
           xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
           xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
           mc:Ignorable="d"
           xmlns:navigation="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Navigation"
           d:DesignWidth="640" d:DesignHeight="480"
           Title="ClickCount Page">
    <StackPanel x:Name="LayoutRoot">
        
        <Rectangle Name="rectangle" Width="100" Height="30" Fill="Gray" MouseLeftButtonDown="rectangle_MouseLeftButtonDown" />
        <TextBlock Name="txt" />
        
    </StackPanel>
</navigation:Page>

Other/ClickCount.xaml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Windows.Navigation;

namespace Silverlight50.Other
{
    public partial class ClickCount : Page
    {
        public ClickCount()
        {
            InitializeComponent();
        }

        protected override void OnNavigatedTo(NavigationEventArgs e)
        {

        }

        private void rectangle_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            /*
             * MouseButtonEventArgs.ClickCount - 獲取連擊的次數
             * 注：連擊的最大間隔時間是由操作系統的"控制面板"-->"鼠標"-->"雙擊速度"設置的
             */

            if (e.ClickCount == 1) // Single Click
                txt.Text = "Left Mouse Click Counter:" + e.ClickCount.ToString();
            else if (e.ClickCount == 2) // Double Click
                txt.Text = "Left Mouse Click Counter:" + e.ClickCount.ToString();
            else // More Click
                txt.Text = "Left Mouse Click Counter:" + e.ClickCount.ToString();
        }
    }
}

OK
[源碼下載]