2017年元旦已经到了，想做一个祝福语的窗口，就把上一篇画心的程序改了改，变成了如下界面。
说下改动的地方，首先窗口没有标题栏了。
MainWindow.xaml
AllowsTransparency="True"
MouseDoubleClick="Window_MouseDoubleClick"
WindowStyle="None" Background="#00FFFFFF" Loaded="Window_Loaded" MouseMove="Window_MouseMove"
Title="MainWindow" Height="" Width=""
中间圆形按钮的样式
<Style TargetType="Button" x:Key="ButtonStyle">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Grid>
<Ellipse Width="" Height="">
<Ellipse.Fill>
<LinearGradientBrush StartPoint="0,0" EndPoint="0,1">
<GradientStop Offset="" Color="blue"/>
<GradientStop Offset="" Color="LightBlue"/>
</LinearGradientBrush>
</Ellipse.Fill>
</Ellipse>
<Ellipse Width="" Height="">
<Ellipse.Fill>
<LinearGradientBrush StartPoint="0,0" EndPoint="0,1">
<GradientStop Offset="" Color="White"/>
<GradientStop Offset="" Color="Transparent"/>
</LinearGradientBrush>
</Ellipse.Fill>
</Ellipse>
<ContentControl VerticalAlignment="Center" HorizontalAlignment="Center" Content="{TemplateBinding Content}"
FontSize="" FontWeight="Bold" Foreground="Red"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
虽然没有了标题栏，为了能够让窗口自由移动
private void Window_MouseMove(object sender, MouseEventArgs e)
{
if (e.LeftButton == MouseButtonState.Pressed)
{
this.DragMove();
}
}
双击鼠标，关闭窗口
private void Window_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
this.Close();
}
不再使用线程睡眠的方式来动态显示心的生成，这次采用计时器。
private DispatcherTimer timer = new DispatcherTimer();//创建定时器对象
public MainWindow()
{
InitializeComponent();
WindowStartupLocation = WindowStartupLocation.CenterScreen;
this.bendediction.Content = "2017年\r\n元旦快乐";
timer.Tick += new EventHandler(timer_Tick); //添加事件，定时到事件
timer.Interval = TimeSpan.FromMilliseconds(100);//设置定时长
timer.Start();
}
void timer_Tick(object sender, EventArgs e)
{
if (iTick < maxStep)
{
CreateHeartLine(iTick);
}
else
{
timer.Stop();
}
iTick++;
}
本次心的生成算法，基本不变，只是把心的半径和位置调整了下。
private void CreateHeartLine(int iTick)
{
centerPt = canvas_Shape.Width/ ;
radius = canvas_Shape.Width / ;
for (int i = ; i < iTick; i++)
{
System.Windows.Controls.Image img = new System.Windows.Controls.Image(); img.Source = new BitmapImage(new Uri(@"image/" + + ".png", UriKind.Relative));//给出照片路径
img.Height = ;
img.Width = ;
img.Stretch = Stretch.Fill; double angle = * Math.PI / maxStep * i; //桃形心
double x = centerPt - * (Math.Sin(angle) * Math.Sin(angle) * Math.Sin(angle)) * ;//
double y = centerPt - ( * Math.Cos(angle) - * Math.Cos( * angle) - * Math.Cos( * angle) - Math.Cos( * angle)) * ;//
Canvas.SetLeft(img, x);
Canvas.SetTop(img, y);
canvas_Shape.Children.Add(img);
}
}
为了添加背景音乐，使用了MediaElement。
private void Window_Loaded(object sender, RoutedEventArgs e)
{ me.LoadedBehavior = MediaState.Manual; //设置为手动控制
me.UnloadedBehavior = MediaState.Manual;
string strPath = string.Format(@"{0}\data\music\bk.mp3", System.Windows.Forms.Application.StartupPath);
Uri uri = new Uri(strPath, UriKind.Relative);
me.Source = uri; me.IsHitTestVisible = true;
me.MediaEnded += new RoutedEventHandler(me_MediaEnded);
gd.Children.Add(me);
me.Play();
}
为了能够循环播放
private void me_MediaEnded(object sender, RoutedEventArgs e)
{
me.Stop();
me.Play();
}