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use Action to set flags and recalculate wmstyles.

pull/2128/head
Dan Walmsley 7 years ago
parent
commit
3ce39fe7a0
  1. 64
      samples/ControlCatalog/DecoratedWindow.xaml
  2. 59
      src/Windows/Avalonia.Win32/WindowImpl.cs

64
samples/ControlCatalog/DecoratedWindow.xaml

@ -3,36 +3,38 @@
x:Class="ControlCatalog.DecoratedWindow"
Title="Avalonia Control Gallery"
xmlns:local="clr-namespace:ControlCatalog" HasSystemDecorations="False" Name="Window">
<Grid RowDefinitions="5,*,5" ColumnDefinitions="5,*,5">
<DockPanel Grid.Column="1" Grid.Row="1" >
<Grid Name="TitleBar" Background="LightBlue" DockPanel.Dock="Top" ColumnDefinitions="Auto,*,Auto">
<TextBlock VerticalAlignment="Center" Margin="5,0,0,0">Title</TextBlock>
<StackPanel Grid.Column="2" Orientation="Horizontal">
<StackPanel.Styles>
<Style Selector="Button">
<Setter Property="Margin" Value="2"/>
</Style>
</StackPanel.Styles>
<Button Name="MinimizeButton">_</Button>
<Button Name="MaximizeButton">[ ]</Button>
<Button Name="CloseButton">X</Button>
</StackPanel>
</Grid>
<Border Background="White" Margin="5">
<StackPanel>
<TextBlock>Hello world!</TextBlock>
<Grid RowDefinitions="5,*,5" ColumnDefinitions="5,*,5">
<DockPanel Grid.Column="1" Grid.Row="1" >
<Grid Name="TitleBar" Background="LightBlue" DockPanel.Dock="Top" ColumnDefinitions="Auto,*,Auto">
<TextBlock VerticalAlignment="Center" Margin="5,0,0,0">Title</TextBlock>
<StackPanel Grid.Column="2" Orientation="Horizontal">
<StackPanel.Styles>
<Style Selector="Button">
<Setter Property="Margin" Value="2"/>
</Style>
</StackPanel.Styles>
<Button Name="MinimizeButton">_</Button>
<Button Name="MaximizeButton">[ ]</Button>
<Button Name="CloseButton">X</Button>
</StackPanel>
</Grid>
<Border Background="White" Margin="5">
<StackPanel>
<TextBlock>Hello world!</TextBlock>
<CheckBox IsChecked="{Binding ElementName=Window, Path=HasSystemDecorations}">Decorated</CheckBox>
</StackPanel>
</Border>
</DockPanel>
<Border Name="TopLeft" Background="Red"/>
<Border Name="TopRight" Background="Red" Grid.Column="2" />
<Border Name="BottomLeft" Background="Red" Grid.Row="2" />
<Border Name="BottomRight" Background="Red" Grid.Row="2" Grid.Column="2"/>
<Border Name="Top" Background="Blue" Grid.Column="1" />
<Border Name="Right" Background="Blue" Grid.Row="1" Grid.Column="2" />
<Border Name="Bottom" Background="Blue" Grid.Row="2" Grid.Column="1" />
<Border Name="Left" Background="Blue" Grid.Row="1" />
</Grid>
<CheckBox IsChecked="{Binding ElementName=Window, Path=HasSystemDecorations}">Decorated</CheckBox>
<CheckBox IsChecked="{Binding ElementName=Window, Path=CanResize}">CanResize</CheckBox>
</StackPanel>
</Border>
</DockPanel>
<Border Name="TopLeft" Background="Red"/>
<Border Name="TopRight" Background="Red" Grid.Column="2" />
<Border Name="BottomLeft" Background="Red" Grid.Row="2" />
<Border Name="BottomRight" Background="Red" Grid.Row="2" Grid.Column="2"/>
<Border Name="Top" Background="Blue" Grid.Column="1" />
<Border Name="Right" Background="Blue" Grid.Row="1" Grid.Column="2" />
<Border Name="Bottom" Background="Blue" Grid.Row="2" Grid.Column="1" />
<Border Name="Left" Background="Blue" Grid.Row="1" />
</Grid>
</Window>

59
src/Windows/Avalonia.Win32/WindowImpl.cs

@ -271,9 +271,7 @@ namespace Avalonia.Win32
return;
}
_decorated = value;
UpdateWMStyles();
UpdateWMStyles(()=> _decorated = value);
}
public void Invalidate(Rect rect)
@ -886,8 +884,13 @@ namespace Avalonia.Win32
}
}
private void UpdateWMStyles()
private void UpdateWMStyles(Action change)
{
var decorated = _decorated;
var resizable = _resizable;
change();
var style = (WindowStyles)GetWindowLong(_hwnd, (int)WindowLongParam.GWL_STYLE);
const WindowStyles controlledFlags = WindowStyles.WS_OVERLAPPEDWINDOW;
@ -912,31 +915,33 @@ namespace Avalonia.Win32
UnmanagedMethods.GetWindowRect(_hwnd, out var windowRect);
Rect newRect;
if (_decorated)
if (decorated != _decorated)
{
var thickness = BorderThickness;
Rect newRect;
newRect = new Rect(
windowRect.left - thickness.Left,
windowRect.top - thickness.Top,
(windowRect.right - windowRect.left) + (thickness.Left + thickness.Right),
(windowRect.bottom - windowRect.top) + (thickness.Top + thickness.Bottom));
}
else
{
newRect = new Rect(
windowRect.left + oldThickness.Left,
windowRect.top + oldThickness.Top,
(windowRect.right - windowRect.left) - (oldThickness.Left + oldThickness.Right),
(windowRect.bottom - windowRect.top) - (oldThickness.Top + oldThickness.Bottom));
}
if (_decorated)
{
var thickness = BorderThickness;
UnmanagedMethods.SetWindowPos(_hwnd, IntPtr.Zero, (int)newRect.X, (int)newRect.Y, (int)newRect.Width,
(int)newRect.Height,
UnmanagedMethods.SetWindowPosFlags.SWP_NOZORDER | UnmanagedMethods.SetWindowPosFlags.SWP_NOACTIVATE | SetWindowPosFlags.SWP_FRAMECHANGED);
newRect = new Rect(
windowRect.left - thickness.Left,
windowRect.top - thickness.Top,
(windowRect.right - windowRect.left) + (thickness.Left + thickness.Right),
(windowRect.bottom - windowRect.top) + (thickness.Top + thickness.Bottom));
}
else
{
newRect = new Rect(
windowRect.left + oldThickness.Left,
windowRect.top + oldThickness.Top,
(windowRect.right - windowRect.left) - (oldThickness.Left + oldThickness.Right),
(windowRect.bottom - windowRect.top) - (oldThickness.Top + oldThickness.Bottom));
}
UnmanagedMethods.SetWindowPos(_hwnd, IntPtr.Zero, (int)newRect.X, (int)newRect.Y, (int)newRect.Width,
(int)newRect.Height,
UnmanagedMethods.SetWindowPosFlags.SWP_NOZORDER | UnmanagedMethods.SetWindowPosFlags.SWP_NOACTIVATE | SetWindowPosFlags.SWP_FRAMECHANGED);
}
}
public void CanResize(bool value)
@ -946,9 +951,7 @@ namespace Avalonia.Win32
return;
}
_resizable = value;
UpdateWMStyles();
UpdateWMStyles(()=> _resizable = value);
}
public void SetTopmost(bool value)

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