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More natural scroll behaviour

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This commit is contained in:
Paddy Xu
2017-07-23 00:44:43 +03:00
parent 86dacf6e73
commit b0e8a29f85
4 changed files with 69 additions and 6 deletions
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2
QuickLook.Plugin/QuickLook.Plugin.TextViewer/TextViewerPanel.xaml
View File

@@ -11,6 +11,6 @@
UseLayoutRounding="True">
<Grid>
<avalonEdit:TextEditor x:Name="viewer" Background="#00FFFFFF" FontSize="14" ShowLineNumbers="True"
WordWrap="True" IsReadOnly="True" />
WordWrap="True" IsReadOnly="True" IsManipulationEnabled="True" />
</Grid>
</UserControl>

37
QuickLook.Plugin/QuickLook.Plugin.TextViewer/TextViewerPanel.xaml.cs
View File

@@ -18,6 +18,7 @@
using System.IO;
using System.Text;
using System.Windows.Controls;
using System.Windows.Input;
using System.Windows.Media;
using ICSharpCode.AvalonEdit.Highlighting;
@@ -32,12 +33,48 @@ namespace QuickLook.Plugin.TextViewer
{
InitializeComponent();
viewer.ManipulationInertiaStarting += Viewer_ManipulationInertiaStarting;
viewer.ManipulationStarting += Viewer_ManipulationStarting;
viewer.ManipulationDelta += Viewer_ManipulationDelta;
viewer.PreviewMouseWheel += Viewer_MouseWheel;
viewer.FontFamily =
new FontFamily(context.GetString("Editor_FontFamily", failsafe: "Consolas"));
LoadFile(path);
}
private void Viewer_ManipulationInertiaStarting(object sender, ManipulationInertiaStartingEventArgs e)
{
e.TranslationBehavior = new InertiaTranslationBehavior
{
InitialVelocity = e.InitialVelocities.LinearVelocity,
DesiredDeceleration = 10.0 * 96.0 / (1000.0 * 1000.0)
};
}
private void Viewer_MouseWheel(object sender, MouseWheelEventArgs e)
{
e.Handled = true;
viewer.ScrollToVerticalOffset(viewer.VerticalOffset - e.Delta);
}
private void Viewer_ManipulationDelta(object sender, ManipulationDeltaEventArgs e)
{
e.Handled = true;
var delta = e.DeltaManipulation;
viewer.ScrollToVerticalOffset(viewer.VerticalOffset - delta.Translation.Y);
}
private void Viewer_ManipulationStarting(object sender, ManipulationStartingEventArgs e)
{
e.ManipulationContainer = this;
e.Mode = ManipulationModes.Translate;
}
private void LoadFile(string path)
{
using (var s = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read))