blob: 87ba8f0ca26977f9a24db01d65db123628fe4c23 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Controls;
using System.Windows.Input;
namespace Tango.Editors
{
internal class CustomScrollViewer : ScrollViewer
{
public event EventHandler<MouseWheelEventArgs> MouseZooming;
protected override void OnMouseWheel(MouseWheelEventArgs e)
{
if (Keyboard.IsKeyDown(Key.LeftCtrl))
{
e.Handled = true;
OnMouseZooming(e);
}
else
{
base.OnMouseWheel(e);
}
}
protected override void OnKeyDown(KeyEventArgs e)
{
if (e.KeyboardDevice.Modifiers == ModifierKeys.Control)
{
if (e.Key == Key.Left || e.Key == Key.Right)
e.Handled = true;
return;
}
base.OnKeyDown(e);
}
protected override void OnPreviewKeyDown(KeyEventArgs e)
{
if (e.Key == Key.Up || e.Key == Key.Down || e.Key == Key.Right || e.Key == Key.Left)
{
e.Handled = true;
}
}
protected virtual void OnMouseZooming(MouseWheelEventArgs e)
{
if (MouseZooming != null) MouseZooming(this, e);
}
}
}
|
