ClemensFischer/XAML-Map-Control
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Partial class Map

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ClemensFischer 2025-06-12 07:41:01 +02:00
parent cceb122486
commit 5777e9cff3
6 changed files with 101 additions and 158 deletions
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53
MapControl/WinUI/Map.WinUI.cs
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@ -1,30 +1,16 @@
using System;
using Windows.System;
using Windows.System;
#if UWP
using Windows.Devices.Input;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Input;
#else
using Microsoft.UI.Input;
using Microsoft.UI.Xaml;
using Microsoft.UI.Xaml.Input;
#endif
namespace MapControl
{
/// <summary>
/// MapBase with default input event handling.
/// </summary>
public class Map : MapBase
public partial class Map
{
public static readonly DependencyProperty MouseWheelZoomDeltaProperty =
DependencyPropertyHelper.Register<Map, double>(nameof(MouseWheelZoomDelta), 0.25);
public static readonly DependencyProperty MouseWheelZoomAnimatedProperty =
DependencyPropertyHelper.Register<Map, bool>(nameof(MouseWheelZoomAnimated), true);
private bool? manipulationEnabled;
public Map()
{
ManipulationMode
@ -40,46 +26,15 @@ namespace MapControl
ManipulationCompleted += OnManipulationCompleted;
}
/// <summary>
/// Gets or sets the amount by which the ZoomLevel property changes by a PointerWheelChanged event.
/// The default value is 0.25.
/// </summary>
public double MouseWheelZoomDelta
{
get => (double)GetValue(MouseWheelZoomDeltaProperty);
set => SetValue(MouseWheelZoomDeltaProperty, value);
}
/// <summary>
/// Gets or sets a value that controls whether zooming by a PointerWheelChanged event is animated.
/// The default value is true.
/// </summary>
public bool MouseWheelZoomAnimated
{
get => (bool)GetValue(MouseWheelZoomAnimatedProperty);
set => SetValue(MouseWheelZoomAnimatedProperty, value);
}
private bool? manipulationEnabled;
private void OnPointerWheelChanged(object sender, PointerRoutedEventArgs e)
{
if (e.Pointer.PointerDeviceType == PointerDeviceType.Mouse)
{
var point = e.GetCurrentPoint(this);
var delta = point.Properties.MouseWheelDelta;
var zoomLevel = TargetZoomLevel + MouseWheelZoomDelta * delta / 120d;
var animated = false;
if (delta % 120 == 0)
{
// Zoom to integer multiple of MouseWheelZoomDelta when delta is a multiple of 120,
// i.e. when the event was actually raised by a mouse wheel and not by a touch pad
// or a similar device with higher resolution.
//
zoomLevel = MouseWheelZoomDelta * Math.Round(zoomLevel / MouseWheelZoomDelta);
animated = MouseWheelZoomAnimated;
}
ZoomMap(point.Position, zoomLevel, animated);
OnMouseWheel(point.Position, point.Properties.MouseWheelDelta);
}
}