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Code Issues Projects Releases Packages Wiki Activity Actions 2

Enable auto scroll when selection changed in RichTextBox

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This commit is contained in:
leo 2020-07-17 17:59:12 +08:00
parent 4680608845
commit ab9b89b4cc
4 changed files with 66 additions and 1 deletions
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1
SourceGit/UI/Blame.xaml
View file

@ -147,6 +147,7 @@
ScrollViewer.ScrollChanged="SyncScrollChanged"
PreviewMouseWheel="MouseWheelOnContent"
SizeChanged="ContentSizeChanged"
SelectionChanged="ContentSelectionChanged"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"
FontFamily="Consolas">

26
SourceGit/UI/Blame.xaml.cs
View file

@ -210,5 +210,31 @@ namespace SourceGit.UI {
content.Document.PageWidth = content.ActualWidth;
}
}
/// <summary>
/// Auto scroll when selection changed.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ContentSelectionChanged(object sender, RoutedEventArgs e) {
var doc = sender as RichTextBox;
if (doc == null || doc.IsFocused == false) return;
if (Mouse.LeftButton == MouseButtonState.Pressed && !doc.Selection.IsEmpty) {
var p = Mouse.GetPosition(doc);
if (p.X <= 8) {
doc.LineLeft();
} else if (p.X >= doc.ActualWidth - 8) {
doc.LineRight();
}
if (p.Y <= 8) {
doc.LineUp();
} else if (p.Y >= doc.ActualHeight - 8) {
doc.LineDown();
}
}
}
}
}

2
SourceGit/UI/DiffViewer.xaml
View file

@ -72,6 +72,7 @@
ScrollViewer.ScrollChanged="OnViewerScroll"
PreviewMouseWheel="OnViewerMouseWheel"
SizeChanged="LeftSizeChanged"
SelectionChanged="OnViewerSelectionChanged"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch">
<RichTextBox.Document>
@ -126,6 +127,7 @@
ScrollViewer.ScrollChanged="OnViewerScroll"
PreviewMouseWheel="OnViewerMouseWheel"
SizeChanged="RightSizeChanged"
SelectionChanged="OnViewerSelectionChanged"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch">
<RichTextBox.Document>

36
SourceGit/UI/DiffViewer.xaml.cs
View file

@ -268,17 +268,53 @@ namespace SourceGit.UI {
e.Handled = true;
}
/// <summary>
/// Fix document size for left side.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void LeftSizeChanged(object sender, SizeChangedEventArgs e) {
if (leftText.Document.PageWidth < leftText.ActualWidth) {
leftText.Document.PageWidth = leftText.ActualWidth;
}
}
/// <summary>
/// Fix document size for right side.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void RightSizeChanged(object sender, SizeChangedEventArgs e) {
if (rightText.Document.PageWidth < rightText.ActualWidth) {
rightText.Document.PageWidth = rightText.ActualWidth;
}
}
/// <summary>
/// Auto scroll when selection changed.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void OnViewerSelectionChanged(object sender, RoutedEventArgs e) {
var doc = sender as RichTextBox;
if (doc == null || doc.IsFocused == false) return;
if (Mouse.LeftButton == MouseButtonState.Pressed && !doc.Selection.IsEmpty) {
var p = Mouse.GetPosition(doc);
if (p.X <= 8) {
doc.LineLeft();
} else if (p.X >= doc.ActualWidth - 8) {
doc.LineRight();
}
if (p.Y <= 8) {
doc.LineUp();
} else if (p.Y >= doc.ActualHeight - 8) {
doc.LineDown();
}
}
}
#endregion
}
}