我尝试在WPF窗口中实现一些“技巧”。
所以我有一个宽度为500高度，高度为30的水平窗口，并且WindowStyle设置为None，所以我添加了一个按钮，以使用DragMove（）函数移动窗口。
这部分工作正常。
我的问题是，当我将窗口移到屏幕边框附近时，我想旋转窗口以使其具有30x500的垂直垂直度（这就像时间医生缩小的条形图一样）。
为此，我听了LocationChanged事件。
这是代码：
XAML：
<Window x:Class="POCClient1.MainWindow"
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"
Title="Echino Time"
Height="30" Width="500"
Topmost="True"
WindowStyle="None"
ResizeMode="NoResize"
WindowStartupLocation="CenterScreen">
<Window.CommandBindings>
<CommandBinding Command="ApplicationCommands.Close"
Executed="CloseCmdExecuted"
CanExecute="CloseCmdCanExecute"/>
</Window.CommandBindings>
<Grid x:Name="ContainerGrid">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="1*" />
<ColumnDefinition Width="2*"/>
<ColumnDefinition Width="1*" />
<ColumnDefinition Width="2*" />
<ColumnDefinition Width="1*" />
</Grid.ColumnDefinitions>
<UniformGrid x:Name="ButtonUniformGrid2" Grid.Column="0" Columns="2" Rows="1" HorizontalAlignment="Stretch">
<Button Grid.Column="0" x:Name="MoveButton" PreviewMouseLeftButtonDown="MoveWindow" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="3" Cursor="Hand">
<Image Source="images/move.png" />
</Button>
<Button Grid.Column="0" x:Name="RotateButton" Click="RotateButton_Click" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="3">
<Image Source="images/rotate.png" />
</Button>
</UniformGrid>
<UniformGrid x:Name="ButtonUniformGrid" Grid.Column="1" Columns="2" Rows="1" HorizontalAlignment="Stretch">
<Button Margin="3" Click="StartButton_Click">Start</Button>
<Button Margin="3" Click="StopButton_Click">Stop</Button>
</UniformGrid>
<Label Grid.Column="2" x:Name="TaskLabel" Content="POC 01" HorizontalAlignment="Left" VerticalAlignment="Center" Padding="0" Margin="0,7" />
<Label Grid.Column="3" x:Name="TimeLabel" HorizontalAlignment="Left" VerticalAlignment="Center" Padding="0" Content="Chrono" />
<Button Grid.Column="4" x:Name="CloseButton" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="3" Command="ApplicationCommands.Close">
<Image Source="images/close.png" />
</Button>
</Grid>
</Window>
C＃：
public partial class MainWindow : Window
{
private DispatcherTimer _dispatcherTimer;
private Stopwatch _stopwatch = new Stopwatch();
private enum Orientation { Horizontal, Vertical };
private Orientation _windowOrientation;
public MainWindow()
{
InitializeComponent();
_windowOrientation = Orientation.Horizontal;
_dispatcherTimer = new DispatcherTimer
{
Interval = TimeSpan.FromMilliseconds(500)
};
_dispatcherTimer.Tick += DispatcherTimer_Tick;
//LocationChanged += MainWindow_LocationChanged;
}
private void MainWindow_LocationChanged(object sender, EventArgs e)
{
// https://stackoverflow.com/questions/48399180/wpf-current-screen-dimensions
System.Drawing.Rectangle workingArea = Screen.FromHandle(new System.Windows.Interop.WindowInteropHelper(this).Handle).WorkingArea;
if (_windowOrientation == Orientation.Horizontal && (Left < 0 || Left > (SystemParameters.VirtualScreenWidth - Width)))
{
RotateToVerticalWindow();
}
else if (_windowOrientation == Orientation.Vertical && (Top < 0 || Top < Height))
{
RotateToHorizontalWindow();
}
}
private void CloseCmdCanExecute(object sender, CanExecuteRoutedEventArgs e)
{
e.CanExecute = true;
}
private void CloseCmdExecuted(object sender, ExecutedRoutedEventArgs e)
{
Close();
}
private void DispatcherTimer_Tick(object sender, EventArgs e)
{
if (_stopwatch.IsRunning)
{
TimeLabel.Content = $"{_stopwatch.Elapsed:hh':'mm':'ss}";
}
}
private void StartButton_Click(object sender, RoutedEventArgs e)
{
_stopwatch.Start();
_dispatcherTimer.Start();
}
private void StopButton_Click(object sender, RoutedEventArgs e)
{
_stopwatch.Stop();
_dispatcherTimer.Stop();
}
private void RotateButton_Click(object sender, RoutedEventArgs e)
{
if (_windowOrientation == Orientation.Horizontal)
{
RotateToVerticalWindow();
}
else if (_windowOrientation == Orientation.Vertical)
{
RotateToHorizontalWindow();
}
}
// Move the window with drag of the button. Ensure that we are not over the taskbar
private void MoveWindow(object sender, MouseButtonEventArgs e)
{
e.Handled = true;
DragMove();
// https://stackoverflow.com/questions/48399180/wpf-current-screen-dimensions
System.Drawing.Rectangle workingArea = Screen.FromHandle(new System.Windows.Interop.WindowInteropHelper(this).Handle).WorkingArea;
//The left property of the window is calculated on the width of all screens, so use VirtualScreenWidth to have the correct width
if (Top > (workingArea.Height - Height))
{
Top = (workingArea.Height - Height);
}
else if (Left > (SystemParameters.VirtualScreenWidth - Width))
{
Left = (SystemParameters.VirtualScreenWidth - Width);
}
else if (Left < 0)
{
Left = 0;
}
}
private void RotateToVerticalWindow()
{
// Set new Width and Height for the window
Width = 30;
Height = 500;
RotateTransform myRotateTransform = new RotateTransform
{
Angle = 90
};
ContainerGrid.LayoutTransform = myRotateTransform;
_windowOrientation = Orientation.Vertical;
}
private void RotateToHorizontalWindow()
{
// Set new Width and Height for the window
Width = 500;
Height = 30;
RotateTransform myRotateTransform = new RotateTransform
{
Angle = 0
};
ContainerGrid.LayoutTransform = myRotateTransform;
_windowOrientation = Orientation.Horizontal;
}
}
问题是，当我到达边框时，窗口的内容会旋转，但窗口不会采用新的尺寸。
我想实现的是旋转窗口及其内容，同时保持拖动处于活动状态，以便我们可以在旋转后继续拖动。
现在，我添加一个按钮来“手动”旋转窗口以查看效果，并且效果很好。
预先感谢：）