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Code Issues Projects Releases Packages Wiki Activity Actions 2

style: add a background for image diff view

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This commit is contained in:
leo 2024-03-28 15:47:40 +08:00
parent 91bc1ee8ab
commit effabb08fe
2 changed files with 51 additions and 18 deletions
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12
src/SourceGit/Views/DiffView.axaml
View file

@ -111,8 +111,8 @@
<!-- Image Diff -->
<DataTemplate DataType="m:ImageDiff">
<Grid Margin="8,8,8,0" RowDefinitions="Auto,*,Auto" HorizontalAlignment="Center" VerticalAlignment="Center">
<Grid Grid.Row="0" Margin="0,0,0,8" ColumnDefinitions="Auto,Auto,*,Auto,Auto">
<Grid RowDefinitions="Auto,*,Auto" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="8,8,8,0">
<Grid Grid.Row="0" ColumnDefinitions="Auto,Auto,*,Auto,Auto">
<Border Grid.Column="0" Height="16" Background="{DynamicResource Brush.Badge}" CornerRadius="8" VerticalAlignment="Center">
<TextBlock Classes="monospace" Text="{DynamicResource Text.Diff.Binary.Old}" Margin="8,0" FontSize="10"/>
</Border>
@ -126,19 +126,21 @@
<TextBlock Grid.Column="4" Classes="monospace" Text="{Binding NewSize}" Foreground="{DynamicResource Brush.FG2}" Margin="8,0,0,0"/>
</Grid>
<Border Grid.Row="1" BorderThickness="1" BorderBrush="{DynamicResource Brush.Border1}">
<Border Grid.Row="1" Background="{DynamicResource Brush.Window}" Effect="drop-shadow(0 0 8 #A0000000)" Margin="0,8,0,0">
<Border BorderThickness="1" BorderBrush="{DynamicResource Brush.Border1}" Margin="8">
<v:ImageDiffView Alpha="{Binding #ImageDiffSlider.Value}"
OldImage="{Binding Old}"
NewImage="{Binding New}"/>
</Border>
</Border>
<Slider Grid.Row="2"
x:Name="ImageDiffSlider"
Minimum="0" Maximum="1"
VerticalAlignment="Top"
TickPlacement="BottomRight"
TickFrequency="0.1"
TickPlacement="None"
Margin="0,4,0,0"
MinHeight="0"
Foreground="{DynamicResource Brush.Border1}"
Value="0.5">
<Slider.Resources>

49
src/SourceGit/Views/DiffView.axaml.cs
View file

@ -4,6 +4,7 @@ using Avalonia;
using Avalonia.Controls;
using Avalonia.Media;
using Avalonia.Media.Imaging;
using Avalonia.Styling;
namespace SourceGit.Views
{
@ -45,13 +46,33 @@ namespace SourceGit.Views
public override void Render(DrawingContext context)
{
var alpha = Alpha;
var x = Bounds.Width * Alpha;
var bgMaskBrush = new SolidColorBrush(ActualThemeVariant == ThemeVariant.Dark ? 0xFF404040 : 0xFFBBBBBB);
var bg = new DrawingGroup()
{
Children =
{
new GeometryDrawing() { Brush = bgMaskBrush, Geometry = new RectangleGeometry(new Rect(0, 0, 12, 12)) },
new GeometryDrawing() { Brush = bgMaskBrush, Geometry = new RectangleGeometry(new Rect(12, 12, 12, 12)) },
}
};
var brushBG = new DrawingBrush(bg)
{
AlignmentX = AlignmentX.Left,
AlignmentY = AlignmentY.Top,
DestinationRect = new RelativeRect(new Size(24, 24), RelativeUnit.Absolute),
Stretch = Stretch.None,
TileMode = TileMode.Tile,
};
context.FillRectangle(brushBG, new Rect(Bounds.Size));
var left = OldImage;
if (left != null && alpha > 0)
{
var src = new Rect(0, 0, left.Size.Width * Alpha, left.Size.Height);
var dst = new Rect(0, 0, x, Bounds.Height);
var dst = new Rect(8, 8, (Bounds.Width - 16) * Alpha, Bounds.Height - 16);
context.DrawImage(left, src, dst);
}
@ -59,13 +80,20 @@ namespace SourceGit.Views
if (right != null)
{
var src = new Rect(right.Size.Width * Alpha, 0, right.Size.Width - right.Size.Width * Alpha, right.Size.Height);
var dst = new Rect(x, 0, Bounds.Width - x, Bounds.Height);
var dst = new Rect((Bounds.Width - 16) * Alpha + 8, 8, (Bounds.Width - 16) * (1 - Alpha), Bounds.Height - 16);
context.DrawImage(right, src, dst);
}
var x = (Bounds.Width - 16) * Alpha + 8;
context.DrawLine(new Pen(Brushes.DarkGreen, 2), new Point(x, 0), new Point(x, Bounds.Height));
}
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
{
base.OnPropertyChanged(change);
if (change.Property.Name == "ActualThemeVariant") InvalidateVisual();
}
protected override Size MeasureOverride(Size availableSize)
{
var left = OldImage;
@ -87,21 +115,24 @@ namespace SourceGit.Views
private Size GetDesiredSize(Size img, Size available)
{
if (img.Width <= available.Width)
var w = available.Width - 16;
var h = available.Height - 16;
if (img.Width <= w)
{
if (img.Height <= available.Height)
if (img.Height <= h)
{
return img;
return new Size(img.Width + 16, img.Height + 16);
}
else
{
return new Size(available.Height * img.Width / img.Height, available.Height);
return new Size(h * img.Width / img.Height + 16, available.Height);
}
}
else
{
var s = Math.Max(img.Width / available.Width, img.Height / available.Height);
return new Size(img.Width / s, img.Height / s);
var s = Math.Max(img.Width / w, img.Height / h);
return new Size(img.Width / s + 16, img.Height / s + 16);
}
}
}