Silverlight走馬灯
5070 ワード
この効果は多すぎます.flash版もhtml版もよく見られます.ここでは前のSilverlightバージョンのものにします.直接コードをつけます.
1.ShopItemのUserControlを新設します.つまり写真を置くための容器、xaml部分です.
2.私達のMainPageで私達のShopItemのUserControlを使って、XAMLの部分:
1.ShopItemのUserControlを新設します.つまり写真を置くための容器、xaml部分です.
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2.私達のMainPageで私達のShopItemのUserControlを使って、XAMLの部分:
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对应的C#代码：
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 SilverlightApplication1.Assets;
using System.Windows.Threading;
using System.ComponentModel;
using System.Collections.ObjectModel;
using System.Windows.Media.Imaging;
namespace SilverlightApplication1
{
public partial class MainPage : UserControl
{
#region Field
private DispatcherTimer timer;
private int count = 10;
private List objList = new List();
private double degree = 10;
private int width = 400;
private int height = 100;
private int itemHeight = 180;
private int itemWidth = 100;
#endregion
#region Constructor
public MainPage()
{
InitializeComponent();
this.Loaded += new RoutedEventHandler(MainPage_Loaded);
}
#endregion
#region Event
void MainPage_Loaded(object sender, RoutedEventArgs e)
{
timer = new DispatcherTimer();
for (int i = 0; i < count; i++)
{
ShopItem item = new ShopItem();
Image image = item.obj;
Uri uri = new Uri(string.Format("Assets/Images/{0}.jpg", (i + 1)), UriKind.Relative);
BitmapImage bitmap = new BitmapImage(uri);
image.Source = bitmap;
image.MouseEnter += new MouseEventHandler(image_MouseEnter);
image.MouseLeave += new MouseEventHandler(image_MouseLeave);
image.MouseLeftButtonDown += new MouseButtonEventHandler(image_MouseLeftButtonDown);
objList.Add(item);
moveCanvas.Children.Add(item);
}
timer.Tick += new EventHandler(timer_Tick);
TimeSpan ts = new TimeSpan(0, 0, 0, 0, 20);
timer.Interval = ts;
timer.Start();
}
void timer_Tick(object sender, EventArgs e)
{
StartMove();
}
void image_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
}
void image_MouseLeave(object sender, MouseEventArgs e)
{
}
void image_MouseEnter(object sender, MouseEventArgs e)
{
}
private void btnStart_Click(object sender, RoutedEventArgs e)
{
}
private void btnStop_Click(object sender, RoutedEventArgs e)
{
}
#endregion
#region Helper
private void StartMove()
{
for (int i = 0; i < objList.Count; i++)
{
double offset = (degree + (360 / count) * i) % 360;
offset = offset * Math.PI / 180;
double posX = width * Math.Sin(offset);
double posY = height * Math.Cos(offset);
ShopItem obj = objList[i];
//For the scale:
double scale = (2 * height - posY) / (3 * height + itemHeight / 2);
Canvas.SetLeft(obj, this.width / 2 + 300 + posX - (itemWidth / 2) * scale);
Canvas.SetTop(obj, this.height / 2 + 180 - posY - (itemHeight / 2) * scale);
Canvas.SetZIndex(obj, int.Parse(Math.Ceiling(count * scale).ToString()));
//Transform:
ScaleTransform st = new ScaleTransform();
st.ScaleX = scale;
st.ScaleY = scale;
obj.RenderTransform = st;
obj.Opacity = scale;
}
degree -= .3;
}
#endregion
}
}