C# WPF抽奖程序
using Microsoft.Win32;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Threading;
namespace RndChs
{
/// <summary>
/// MainWindow.xaml 的交互逻辑
/// </summary>
public partial class MainWindow : Window
{
public static string PicPath = "/Images";
private double centerX = 400;
private double centerY = 300;
private double cycleWidth = 300;
private double cycleHeight = 60;
private double degree = 0;
bool isHighSpeed = false;
//速度控制
double normalSpeed = 0.4;
double highSpeed = 4.0;
//项集合类
List<ItemShow> itemList = new List<ItemShow>();
List<ItemShow> removeList = new List<ItemShow>();
ItemShow topItem = null;
private double itemWidth = 160;
private double itemHeight = 80;
private double currentOpacity = 0;
private DispatcherTimer timer;
public MainWindow()
{
InitializeComponent();
this.KeyUp += MainWindow_KeyUp;
PicPath = System.IO.Path.GetDirectoryName(Process.GetCurrentProcess().MainModule.FileName) + "/Images";
}
void MainWindow_KeyUp(object sender, KeyEventArgs e)
{
if (cbKeyStart.IsChecked.GetValueOrDefault(true) && e.Key == Key.S)
{
// 按下“静音”键
btnStart_Click(this, null);
}
}
private void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
timer = new DispatcherTimer();
timer.Tick += new EventHandler(timer_Tick);
TimeSpan sp = new TimeSpan(0, 0, 0, 0, 20);
timer.Interval = sp;
ItemSet();
}
private void ItemSet()
{
centerX = this.Width / 2;
centerY = this.Height / 3 * 2;
cycleWidth = this.Width / 2 * 0.8;
cycleHeight = this.Height / 9;
itemList = new List<ItemShow>();
moveCanvas.Children.RemoveRange(0, moveCanvas.Children.Count);
shower.Source = null;
showerName.Text = "";
DirectoryInfo theFolder = new DirectoryInfo(MainWindow.PicPath);
FileInfo[] fileInfos = theFolder.GetFiles();
foreach (FileInfo fileInfo in fileInfos)
{
if (fileInfo.Extension == ".jpg"
|| fileInfo.Extension == ".png"
|| fileInfo.Extension == ".gif"
|| fileInfo.Extension == ".bmp")
{
if (removeList.Where(i => i.FileName == fileInfo.Name).Count() > 0)
{
continue;
}
ItemShow item = new ItemShow();
Image image = item.imgPic;
Uri uri = new Uri(fileInfo.FullName, UriKind.RelativeOrAbsolute);
BitmapImage bitmap = new BitmapImage(uri);
image.Source = bitmap;
item.FileName = fileInfo.Name;
image.MouseLeftButtonDown += new MouseButtonEventHandler(image_MouseLeftButtonDown);
image.MouseLeftButtonUp += new MouseButtonEventHandler(image_MouseLeftButtonUp);
itemList.Add(item);
moveCanvas.Children.Add(item);
}
}
timer.Start();
}
private void image_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
timer.Stop();
Image img = (Image)sender;
currentOpacity = img.Opacity;
img.Opacity = 1;
shower.Source = img.Source;
}
private void image_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
Image img = sender as Image;
img.Opacity = currentOpacity;
shower.Source = null;
showerName.Text = "";
timer.Start();
}
private void timer_Tick(object sender, EventArgs e)
{
MoveNext();
}
private void MoveNext()
{
normalSpeed = normalSlider.Value;
highSpeed = highSlider.Value;
for (var i = 0; i < itemList.Count; i++)
{
//创建一个圆周
var tmp = (degree + (360 / itemList.Count) * i) % 360;
tmp = tmp * Math.PI / 180;
var posX = (cycleWidth) * Math.Sin(tmp);//更新x
var posY = (cycleHeight) * Math.Cos(tmp); //更新y
ItemShow item = itemList[i];
//根据宽高计算缩放比例
double scale = (2 * cycleHeight - posY) / (3 * cycleHeight + itemHeight / 2);
Canvas.SetLeft(item, centerX + posX - (itemWidth / 2) * scale);
Canvas.SetTop(item, centerY - posY - (itemHeight / 2) * scale);
Canvas.SetZIndex(item, int.Parse(Math.Ceiling(itemList.Count * 10 * scale).ToString()));
item.ZIndex = int.Parse(Math.Ceiling(itemList.Count * itemList.Count * scale).ToString());
//创建并应用变形属性
ScaleTransform st = new ScaleTransform();
st.ScaleX = scale;
st.ScaleY = scale;
item.RenderTransform = st;
item.Opacity = scale;
}
if (isHighSpeed)
{
degree = degree - highSpeed;
topItem = itemList.OrderByDescending(o => o.ZIndex).FirstOrDefault();
shower.Visibility = Visibility.Visible;
shower.Source = topItem.imgPic.Source;
var index = topItem.FileName.IndexOf('.');
showerName.Text = topItem.FileName.Substring(0, index);
}
else
{
degree = degree - normalSpeed;
}
}
private void btnRefresh_Click(object sender, RoutedEventArgs e)
{
ItemSet();
}
private void btnReset_Click(object sender, RoutedEventArgs e)
{
removeList = new List<ItemShow>();
ItemSet();
}
private void btnCapture_Click(object sender, RoutedEventArgs e)
{
CaptureWindow cw = new CaptureWindow();
cw.Closing += cw_Closing;
cw.ShowDialog();
}
void cw_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
ItemSet();
}
private void btnStart_Click(object sender, RoutedEventArgs e)
{
if (!isHighSpeed)
{
if (cbNeedRemove.IsChecked.GetValueOrDefault(true) && topItem != null)
{
moveCanvas.Children.Remove(topItem);
itemList.Remove(topItem);
removeList.Add(topItem);
}
if (itemList.Count < 2)
{
MessageBox.Show("还抽啥，直接发奖呗！");
return;
}
isHighSpeed = true;
timer.Start();
btnStart.Content = "停止";
}
else
{
btnStart.IsEnabled = false;
timer.Stop();
isHighSpeed = false;
timer.Start();
btnStart.Content = "开始";
btnStart.IsEnabled = true;
}
}
private void btnSet_Click(object sender, RoutedEventArgs e)
{
System.Windows.Forms.FolderBrowserDialog fbd = new System.Windows.Forms.FolderBrowserDialog();
fbd.ShowDialog();
if (fbd.SelectedPath != string.Empty)
{
MainWindow.PicPath = fbd.SelectedPath;
}
ItemSet();
}
}
}
程序包链接：
https://download.csdn.net/download/weixin_43050480/90091690
需要源码请私信我！