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Added middle mouse button scroll to the Manifest

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erri120 2020-02-15 15:23:30 +01:00
parent ff1ecf27a6
commit ef7986db5c
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GPG Key ID: A8C0A18D8D4D3135
2 changed files with 81 additions and 2 deletions
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7
Wabbajack/Views/ManifestView.xaml
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@ -7,7 +7,8 @@
xmlns:reactiveUi="http://reactiveui.net"
mc:Ignorable="d"
d:DesignHeight="450" d:DesignWidth="800">
<ScrollViewer>
<Grid>
<ScrollViewer MouseDown="ScrollViewer_MouseDown" MouseUp="ScrollViewer_MouseUp" MouseMove="ScrollViewer_MouseMove">
<ScrollViewer.Resources>
<Style x:Key="HeaderStyle" TargetType="{x:Type TextBlock}">
<Setter Property="Foreground" Value="#03DAC6"/>
@ -19,7 +20,7 @@
<Setter Property="Foreground" Value="#C7FC86"/>
</Style>
</ScrollViewer.Resources>
<StackPanel Margin="8">
<StackPanel Margin="8" x:Name="DynamicStackPanel">
<TextBlock x:Name="Name" FontSize="32" HorizontalAlignment="Center" Style="{StaticResource HeaderStyle}"/>
<TextBlock x:Name="Author" FontSize="14" Padding="0 3 0 3"/>
<TextBlock x:Name="Description" FontSize="14" TextWrapping="Wrap"/>
@ -57,4 +58,6 @@
</ItemsControl>
</StackPanel>
</ScrollViewer>
<Canvas x:Name="TopLayer" IsHitTestVisible="False"/>
</Grid>
</reactiveUi:ReactiveUserControl>

76
Wabbajack/Views/ManifestView.xaml.cs
View File

@ -1,8 +1,13 @@
using System;
using System.Diagnostics;
using System.Reactive.Disposables;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Navigation;
using System.Windows.Shapes;
using ReactiveUI;
using Wabbajack.Lib;
@ -55,5 +60,76 @@ namespace Wabbajack
e.Handled = true;
}
//solution from https://stackoverflow.com/questions/5426232/how-can-i-make-wpf-scrollviewer-middle-click-scroll/5446307#5446307
private bool _isMoving; //False - ignore mouse movements and don't scroll
private bool _isDeferredMovingStarted; //True - Mouse down -> Mouse up without moving -> Move; False - Mouse down -> Move
private Point? _startPosition;
private const double Slowdown = 10; //smaller = faster
private void ScrollViewer_MouseDown(object sender, MouseButtonEventArgs e)
{
if (_isMoving)
CancelScrolling();
else if (e.ChangedButton == MouseButton.Middle && e.ButtonState == MouseButtonState.Pressed)
{
if (_isMoving) return;
_isMoving = true;
_startPosition = e.GetPosition(sender as IInputElement);
_isDeferredMovingStarted = true;
AddScrollSign(e.GetPosition(TopLayer).X, e.GetPosition(TopLayer).Y);
}
}
private void ScrollViewer_MouseUp(object sender, MouseButtonEventArgs e)
{
if(e.ChangedButton == MouseButton.Middle && e.ButtonState == MouseButtonState.Released && _isDeferredMovingStarted != true)
CancelScrolling();
}
private void ScrollViewer_MouseMove(object sender, MouseEventArgs e)
{
if (!_isMoving || !(sender is ScrollViewer sv))
return;
_isDeferredMovingStarted = false;
var currentPosition = e.GetPosition(sv);
if (_startPosition == null)
return;
var offset = currentPosition - _startPosition.Value;
offset.Y /= Slowdown;
offset.X /= Slowdown;
sv.ScrollToVerticalOffset(sv.VerticalOffset + offset.Y);
sv.ScrollToHorizontalOffset(sv.HorizontalOffset + offset.X);
}
private void CancelScrolling()
{
_isMoving = false;
_startPosition = null;
_isDeferredMovingStarted = false;
RemoveScrollSign();
}
private void AddScrollSign(double x, double y)
{
const double size = 50.0;
var icon = new Ellipse { Stroke = Brushes.Red, StrokeThickness = 2.0, Width = 20, Height = 20 };
TopLayer.Children.Add(icon);
Canvas.SetLeft(icon, x - size / 2);
Canvas.SetTop(icon, y - size / 2);
}
private void RemoveScrollSign()
{
TopLayer.Children.Clear();
}
}
}