ClemensFischer/XAML-Map-Control
1
0
Fork 0
mirror of https://github.com/ClemensFischer/XAML-Map-Control.git synced 2025-12-06 07:12:04 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity

Moved basic map functionality to class MapBase, input event handling to class Map. Fixed method names in class MapItemsControl.

Browse source
This commit is contained in:
ClemensF 2012-10-12 19:22:49 +02:00
parent e8b29be79e
commit 27cdfe77ae
10 changed files with 862 additions and 765 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

763
MapControl/Map.cs
View file

@ -3,775 +3,86 @@
// Licensed under the Microsoft Public License (Ms-PL) // Licensed under the Microsoft Public License (Ms-PL)
using System; using System;
using System.Collections.Specialized;
using System.Linq;
using System.Windows; using System.Windows;
using System.Windows.Controls; using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
namespace MapControl namespace MapControl
{ {
/// <summary> /// <summary>
/// The main map control. Draws map content provided by the TileLayers or the BaseTileLayer property. /// MapBase with input event handling.
/// The visible map area is defined by the Center and ZoomLevel properties. The map can be rotated
/// by an angle that is given by the Heading property.
/// Map is a MapPanel and hence can contain map overlays like other MapPanels or MapItemsControls.
/// </summary> /// </summary>
public partial class Map : MapPanel public class Map : MapBase
{ {
public const double MeterPerDegree = 1852d * 60d; private double mouseWheelZoom = 1d;
private Point? mousePosition;
public static readonly DependencyProperty FontSizeProperty = Control.FontSizeProperty.AddOwner(typeof(Map)); public double MouseWheelZoom
public static readonly DependencyProperty FontFamilyProperty = Control.FontFamilyProperty.AddOwner(typeof(Map));
public static readonly DependencyProperty FontStyleProperty = Control.FontStyleProperty.AddOwner(typeof(Map));
public static readonly DependencyProperty FontWeightProperty = Control.FontWeightProperty.AddOwner(typeof(Map));
public static readonly DependencyProperty FontStretchProperty = Control.FontStretchProperty.AddOwner(typeof(Map));
public static readonly DependencyProperty ForegroundProperty = Control.ForegroundProperty.AddOwner(typeof(Map));
public static readonly DependencyProperty LightForegroundProperty = DependencyProperty.Register(
"LightForeground", typeof(Brush), typeof(Map));
public static readonly DependencyProperty DarkForegroundProperty = DependencyProperty.Register(
"DarkForeground", typeof(Brush), typeof(Map));
public static readonly DependencyProperty LightBackgroundProperty = DependencyProperty.Register(
"LightBackground", typeof(Brush), typeof(Map));
public static readonly DependencyProperty DarkBackgroundProperty = DependencyProperty.Register(
"DarkBackground", typeof(Brush), typeof(Map));
public static readonly DependencyProperty TileLayersProperty = DependencyProperty.Register(
"TileLayers", typeof(TileLayerCollection), typeof(Map), new FrameworkPropertyMetadata(
(o, e) => ((Map)o).TileLayersPropertyChanged((TileLayerCollection)e.OldValue, (TileLayerCollection)e.NewValue),
(o, v) => ((Map)o).CoerceTileLayersProperty((TileLayerCollection)v)));
public static readonly DependencyProperty BaseTileLayerProperty = DependencyProperty.Register(
"BaseTileLayer", typeof(TileLayer), typeof(Map), new FrameworkPropertyMetadata(
(o, e) => ((Map)o).BaseTileLayerPropertyChanged((TileLayer)e.NewValue),
(o, v) => ((Map)o).CoerceBaseTileLayerProperty((TileLayer)v)));
public static readonly DependencyProperty TileOpacityProperty = DependencyProperty.Register(
"TileOpacity", typeof(double), typeof(Map), new FrameworkPropertyMetadata(1d,
(o, e) => ((Map)o).tileContainer.Opacity = (double)e.NewValue));
public static readonly DependencyProperty CenterProperty = DependencyProperty.Register(
"Center", typeof(Location), typeof(Map), new FrameworkPropertyMetadata(new Location(), FrameworkPropertyMetadataOptions.BindsTwoWayByDefault,
(o, e) => ((Map)o).CenterPropertyChanged((Location)e.NewValue),
(o, v) => ((Map)o).CoerceCenterProperty((Location)v)));
public static readonly DependencyProperty TargetCenterProperty = DependencyProperty.Register(
"TargetCenter", typeof(Location), typeof(Map), new FrameworkPropertyMetadata(new Location(), FrameworkPropertyMetadataOptions.BindsTwoWayByDefault,
(o, e) => ((Map)o).TargetCenterPropertyChanged((Location)e.NewValue),
(o, v) => ((Map)o).CoerceCenterProperty((Location)v)));
public static readonly DependencyProperty ZoomLevelProperty = DependencyProperty.Register(
"ZoomLevel", typeof(double), typeof(Map), new FrameworkPropertyMetadata(1d, FrameworkPropertyMetadataOptions.BindsTwoWayByDefault,
(o, e) => ((Map)o).ZoomLevelPropertyChanged((double)e.NewValue),
(o, v) => ((Map)o).CoerceZoomLevelProperty((double)v)));
public static readonly DependencyProperty TargetZoomLevelProperty = DependencyProperty.Register(
"TargetZoomLevel", typeof(double), typeof(Map), new FrameworkPropertyMetadata(1d, FrameworkPropertyMetadataOptions.BindsTwoWayByDefault,
(o, e) => ((Map)o).TargetZoomLevelPropertyChanged((double)e.NewValue),
(o, v) => ((Map)o).CoerceZoomLevelProperty((double)v)));
public static readonly DependencyProperty HeadingProperty = DependencyProperty.Register(
"Heading", typeof(double), typeof(Map), new FrameworkPropertyMetadata(0d, FrameworkPropertyMetadataOptions.BindsTwoWayByDefault,
(o, e) => ((Map)o).HeadingPropertyChanged((double)e.NewValue),
(o, v) => ((Map)o).CoerceHeadingProperty((double)v)));
public static readonly DependencyProperty TargetHeadingProperty = DependencyProperty.Register(
"TargetHeading", typeof(double), typeof(Map), new FrameworkPropertyMetadata(0d, FrameworkPropertyMetadataOptions.BindsTwoWayByDefault,
(o, e) => ((Map)o).TargetHeadingPropertyChanged((double)e.NewValue),
(o, v) => ((Map)o).CoerceHeadingProperty((double)v)));
private static readonly DependencyPropertyKey CenterScalePropertyKey = DependencyProperty.RegisterReadOnly(
"CenterScale", typeof(double), typeof(Map), null);
public static readonly DependencyProperty CenterScaleProperty = CenterScalePropertyKey.DependencyProperty;
private readonly TileContainer tileContainer = new TileContainer();
private readonly MapTransform mapTransform = new MercatorTransform();
private readonly ScaleTransform scaleTransform = new ScaleTransform();
private readonly RotateTransform rotateTransform = new RotateTransform();
private readonly MatrixTransform scaleRotateTransform = new MatrixTransform();
private Location transformOrigin;
private Point viewportOrigin;
private LocationAnimation centerAnimation;
private DoubleAnimation zoomLevelAnimation;
private DoubleAnimation headingAnimation;
private bool updateTransform = true;
public Map()
{
MinZoomLevel = 1;
MaxZoomLevel = 20;
AddVisualChild(tileContainer);
TileLayers = new TileLayerCollection();
SetValue(ParentMapPropertyKey, this);
Loaded += (o, e) =>
{
if (BaseTileLayer == null)
{
BaseTileLayer = new TileLayer
{
Name = "OpenStreetMap",
Description = "© {y} OpenStreetMap Contributors, CC-BY-SA",
TileSource = new TileSource("http://{c}.tile.openstreetmap.org/{z}/{x}/{y}.png")
};
}
};
}
/// <summary>
/// Raised when the current viewport has changed.
/// </summary>
public event Action ViewportChanged;
public double MinZoomLevel { get; set; }
public double MaxZoomLevel { get; set; }
public double FontSize
{
get { return (double)GetValue(FontSizeProperty); }
set { SetValue(FontSizeProperty, value); }
}
public FontFamily FontFamily
{
get { return (FontFamily)GetValue(FontFamilyProperty); }
set { SetValue(FontFamilyProperty, value); }
}
public FontStyle FontStyle
{
get { return (FontStyle)GetValue(FontStyleProperty); }
set { SetValue(FontStyleProperty, value); }
}
public FontWeight FontWeight
{
get { return (FontWeight)GetValue(FontWeightProperty); }
set { SetValue(FontWeightProperty, value); }
}
public FontStretch FontStretch
{
get { return (FontStretch)GetValue(FontStretchProperty); }
set { SetValue(FontStretchProperty, value); }
}
public Brush Foreground
{
get { return (Brush)GetValue(ForegroundProperty); }
set { SetValue(ForegroundProperty, value); }
}
public Brush LightForeground
{
get { return (Brush)GetValue(LightForegroundProperty); }
set { SetValue(LightForegroundProperty, value); }
}
public Brush DarkForeground
{
get { return (Brush)GetValue(DarkForegroundProperty); }
set { SetValue(DarkForegroundProperty, value); }
}
public Brush LightBackground
{
get { return (Brush)GetValue(LightBackgroundProperty); }
set { SetValue(LightBackgroundProperty, value); }
}
public Brush DarkBackground
{
get { return (Brush)GetValue(DarkBackgroundProperty); }
set { SetValue(DarkBackgroundProperty, value); }
}
/// <summary>
/// Gets or sets the TileLayers used by this Map.
/// </summary>
public TileLayerCollection TileLayers
{
get { return (TileLayerCollection)GetValue(TileLayersProperty); }
set { SetValue(TileLayersProperty, value); }
}
/// <summary>
/// Gets or sets the base TileLayer used by this Map, i.e. TileLayers[0].
/// </summary>
public TileLayer BaseTileLayer
{
get { return (TileLayer)GetValue(BaseTileLayerProperty); }
set { SetValue(BaseTileLayerProperty, value); }
}
/// <summary>
/// Gets or sets the opacity of the tile layers.
/// </summary>
public double TileOpacity
{
get { return (double)GetValue(TileOpacityProperty); }
set { SetValue(TileOpacityProperty, value); }
}
/// <summary>
/// Gets or sets the location of the center point of the Map.
/// </summary>
public Location Center
{
get { return (Location)GetValue(CenterProperty); }
set { SetValue(CenterProperty, value); }
}
/// <summary>
/// Gets or sets the target value of a Center animation.
/// </summary>
public Location TargetCenter
{
get { return (Location)GetValue(TargetCenterProperty); }
set { SetValue(TargetCenterProperty, value); }
}
/// <summary>
/// Gets or sets the map zoom level.
/// </summary>
public double ZoomLevel
{
get { return (double)GetValue(ZoomLevelProperty); }
set { SetValue(ZoomLevelProperty, value); }
}
/// <summary>
/// Gets or sets the target value of a ZoomLevel animation.
/// </summary>
public double TargetZoomLevel
{
get { return (double)GetValue(TargetZoomLevelProperty); }
set { SetValue(TargetZoomLevelProperty, value); }
}
/// <summary>
/// Gets or sets the map heading, or clockwise rotation angle in degrees.
/// </summary>
public double Heading
{
get { return (double)GetValue(HeadingProperty); }
set { SetValue(HeadingProperty, value); }
}
/// <summary>
/// Gets or sets the target value of a Heading animation.
/// </summary>
public double TargetHeading
{
get { return (double)GetValue(TargetHeadingProperty); }
set { SetValue(TargetHeadingProperty, value); }
}
/// <summary>
/// Gets the map scale at the Center location as viewport coordinate units (pixels) per meter.
/// </summary>
public double CenterScale
{
get { return (double)GetValue(CenterScaleProperty); }
private set { SetValue(CenterScalePropertyKey, value); }
}
/// <summary>
/// Gets the transformation from geographic coordinates to cartesian map coordinates.
/// </summary>
public MapTransform MapTransform
{
get { return mapTransform; }
}
/// <summary>
/// Gets the transformation from cartesian map coordinates to viewport coordinates.
/// </summary>
public Transform ViewportTransform
{
get { return tileContainer.ViewportTransform; }
}
/// <summary>
/// Gets the scaling transformation from meters to viewport coordinate units (pixels)
/// at the viewport center point.
/// </summary>
public Transform ScaleTransform
{
get { return scaleTransform; }
}
/// <summary>
/// Gets the transformation that rotates by the value of the Heading property.
/// </summary>
public Transform RotateTransform
{
get { return rotateTransform; }
}
/// <summary>
/// Gets the combination of ScaleTransform and RotateTransform
/// </summary>
public Transform ScaleRotateTransform
{
get { return scaleRotateTransform; }
}
/// <summary>
/// Transforms a geographic location to a viewport coordinates point.
/// </summary>
public Point LocationToViewportPoint(Location location)
{
return ViewportTransform.Transform(MapTransform.Transform(location));
}
/// <summary>
/// Transforms a viewport coordinates point to a geographic location.
/// </summary>
public Location ViewportPointToLocation(Point point)
{
return MapTransform.TransformBack(ViewportTransform.Inverse.Transform(point));
}
/// <summary>
/// Sets a temporary origin location in geographic coordinates for scaling and rotation transformations.
/// This origin location is automatically removed when the Center property is set by application code.
/// </summary>
public void SetTransformOrigin(Location origin)
{
transformOrigin = origin;
viewportOrigin = LocationToViewportPoint(origin);
}
/// <summary>
/// Sets a temporary origin point in viewport coordinates for scaling and rotation transformations.
/// This origin point is automatically removed when the Center property is set by application code.
/// </summary>
public void SetTransformOrigin(Point origin)
{
viewportOrigin.X = Math.Min(Math.Max(origin.X, 0d), RenderSize.Width);
viewportOrigin.Y = Math.Min(Math.Max(origin.Y, 0d), RenderSize.Height);
transformOrigin = CoerceCenterProperty(ViewportPointToLocation(viewportOrigin));
}
/// <summary>
/// Removes the temporary transform origin point set by SetTransformOrigin.
/// </summary>
public void ResetTransformOrigin()
{
transformOrigin = null;
viewportOrigin = new Point(RenderSize.Width / 2d, RenderSize.Height / 2d);
}
/// <summary>
/// Changes the Center property according to the specified translation in viewport coordinates.
/// </summary>
public void TranslateMap(Vector translation)
{
if (translation.X != 0d || translation.Y != 0d)
{
if (transformOrigin != null)
{
viewportOrigin += translation;
UpdateTransform();
}
else
{
Center = ViewportPointToLocation(viewportOrigin - translation);
}
}
}
/// <summary>
/// Changes the Center, Heading and ZoomLevel properties according to the specified
/// viewport coordinate translation, rotation and scale delta values. Rotation and scaling
/// is performed relative to the specified origin point in viewport coordinates.
/// </summary>
public void TransformMap(Point origin, Vector translation, double rotation, double scale)
{
if (rotation != 0d || scale != 1d)
{
SetTransformOrigin(origin);
updateTransform = false;
Heading = (((Heading + rotation) % 360d) + 360d) % 360d;
ZoomLevel += Math.Log(scale, 2d);
updateTransform = true;
UpdateTransform();
}
ResetTransformOrigin();
TranslateMap(translation);
}
/// <summary>
/// Sets the value of the ZoomLevel property while retaining the specified origin point
/// in viewport coordinates.
/// </summary>
public void ZoomMap(Point origin, double zoomLevel)
{
double targetZoomLebel = TargetZoomLevel;
TargetZoomLevel = zoomLevel;
if (TargetZoomLevel != targetZoomLebel) // TargetZoomLevel might be coerced
{
SetTransformOrigin(origin);
}
}
/// <summary>
/// Gets the map scale at the specified location as viewport coordinate units (pixels) per meter.
/// </summary>
public double GetMapScale(Location location)
{
return mapTransform.RelativeScale(location) * Math.Pow(2d, ZoomLevel) * 256d / (MeterPerDegree * 360d);
}
protected override int VisualChildrenCount
{
get { return InternalChildren.Count + 1; }
}
protected override Visual GetVisualChild(int index)
{
if (index == 0)
{
return tileContainer;
}
return InternalChildren[index - 1];
}
protected override void OnRenderSizeChanged(SizeChangedInfo sizeInfo)
{
base.OnRenderSizeChanged(sizeInfo);
ResetTransformOrigin();
UpdateTransform();
}
protected override void OnRender(DrawingContext drawingContext)
{
drawingContext.DrawRectangle(Background, null, new Rect(RenderSize));
}
protected override void OnViewportChanged()
{
base.OnViewportChanged();
if (ViewportChanged != null)
{
ViewportChanged();
}
}
private void TileLayerCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
switch (e.Action)
{
case NotifyCollectionChangedAction.Add:
tileContainer.AddTileLayers(e.NewStartingIndex, e.NewItems.Cast<TileLayer>());
break;
case NotifyCollectionChangedAction.Remove:
tileContainer.RemoveTileLayers(e.OldStartingIndex, e.OldItems.Cast<TileLayer>());
break;
case NotifyCollectionChangedAction.Move:
case NotifyCollectionChangedAction.Replace:
tileContainer.RemoveTileLayers(e.OldStartingIndex, e.OldItems.Cast<TileLayer>());
tileContainer.AddTileLayers(e.NewStartingIndex, e.NewItems.Cast<TileLayer>());
break;
case NotifyCollectionChangedAction.Reset:
tileContainer.ClearTileLayers();
if (e.NewItems != null)
{
tileContainer.AddTileLayers(0, e.NewItems.Cast<TileLayer>());
}
break;
}
UpdateBaseTileLayer();
}
private void TileLayersPropertyChanged(TileLayerCollection oldTileLayers, TileLayerCollection newTileLayers)
{ {
tileContainer.ClearTileLayers(); get { return mouseWheelZoom; }
set { mouseWheelZoom = value; }
if (oldTileLayers != null)
{
oldTileLayers.CollectionChanged -= TileLayerCollectionChanged;
} }
if (newTileLayers != null) protected override void OnMouseWheel(MouseWheelEventArgs e)
{ {
newTileLayers.CollectionChanged += TileLayerCollectionChanged; base.OnMouseWheel(e);
tileContainer.AddTileLayers(0, newTileLayers);
}
UpdateBaseTileLayer(); ZoomMap(e.GetPosition(this), TargetZoomLevel + mouseWheelZoom * Math.Sign(e.Delta));
} }
private TileLayerCollection CoerceTileLayersProperty(TileLayerCollection tileLayers) protected override void OnMouseRightButtonDown(MouseButtonEventArgs e)
{ {
if (tileLayers == null) base.OnMouseRightButtonDown(e);
{
tileLayers = new TileLayerCollection();
}
return tileLayers; if (e.ClickCount == 2)
}
private void BaseTileLayerPropertyChanged(TileLayer baseTileLayer)
{
if (baseTileLayer != null)
{
if (TileLayers.Count == 0)
{ {
TileLayers.Add(baseTileLayer); ZoomMap(e.GetPosition(this), Math.Ceiling(ZoomLevel - 1.5));
}
else if (TileLayers[0] != baseTileLayer)
{
TileLayers[0] = baseTileLayer;
} }
} }
if (baseTileLayer != null && baseTileLayer.HasDarkBackground) protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
{
if (DarkForeground != null)
{ {
Foreground = DarkForeground; base.OnMouseLeftButtonDown(e);
}
if (DarkBackground != null) if (e.ClickCount == 1)
{ {
Background = DarkBackground; mousePosition = e.GetPosition(this);
} CaptureMouse();
} }
else else if (e.ClickCount == 2)
{
if (LightForeground != null)
{
Foreground = LightForeground;
}
if (LightBackground != null)
{ {
Background = LightBackground; ZoomMap(e.GetPosition(this), Math.Floor(ZoomLevel + 1.5));
}
} }
} }
private TileLayer CoerceBaseTileLayerProperty(TileLayer baseTileLayer) protected override void OnMouseLeftButtonUp(MouseButtonEventArgs e)
{
if (baseTileLayer == null && TileLayers.Count > 0)
{ {
baseTileLayer = TileLayers[0]; base.OnMouseLeftButtonUp(e);
}
return baseTileLayer;
}
private void UpdateBaseTileLayer() if (mousePosition.HasValue)
{ {
TileLayer baseTileLayer = TileLayers.FirstOrDefault(); mousePosition = null;
ReleaseMouseCapture();
if (BaseTileLayer != baseTileLayer)
{
BaseTileLayer = baseTileLayer;
} }
} }
private void CenterPropertyChanged(Location center) protected override void OnMouseMove(MouseEventArgs e)
{ {
if (updateTransform) base.OnMouseMove(e);
{
ResetTransformOrigin();
UpdateTransform();
}
if (centerAnimation == null) if (mousePosition.HasValue)
{ {
TargetCenter = center; Point position = e.GetPosition(this);
TranslateMap(position - mousePosition.Value);
mousePosition = position;
} }
} }
private void TargetCenterPropertyChanged(Location targetCenter) protected override void OnManipulationDelta(ManipulationDeltaEventArgs e)
{ {
if (targetCenter != Center) base.OnManipulationDelta(e);
{
if (centerAnimation != null)
{
centerAnimation.Completed -= CenterAnimationCompleted;
}
centerAnimation = new LocationAnimation
{
From = Center,
To = targetCenter,
Duration = TimeSpan.FromSeconds(0.5),
FillBehavior = FillBehavior.Stop,
EasingFunction = new QuadraticEase { EasingMode = EasingMode.EaseOut }
};
centerAnimation.Completed += CenterAnimationCompleted;
BeginAnimation(CenterProperty, centerAnimation);
}
}
private void CenterAnimationCompleted(object sender, EventArgs e)
{
Center = TargetCenter;
centerAnimation.Completed -= CenterAnimationCompleted;
centerAnimation = null;
}
private Location CoerceCenterProperty(Location location)
{
location.Latitude = Math.Min(Math.Max(location.Latitude, -MapTransform.MaxLatitude), MapTransform.MaxLatitude);
location.Longitude = Location.NormalizeLongitude(location.Longitude);
return location;
}
private void ZoomLevelPropertyChanged(double zoomLevel)
{
if (updateTransform)
{
UpdateTransform();
}
if (zoomLevelAnimation == null)
{
TargetZoomLevel = zoomLevel;
}
}
private void TargetZoomLevelPropertyChanged(double targetZoomLevel)
{
if (targetZoomLevel != ZoomLevel)
{
if (zoomLevelAnimation != null)
{
zoomLevelAnimation.Completed -= ZoomLevelAnimationCompleted;
}
zoomLevelAnimation = new DoubleAnimation
{
From = ZoomLevel,
To = targetZoomLevel,
Duration = TimeSpan.FromSeconds(0.5),
FillBehavior = FillBehavior.Stop,
EasingFunction = new QuadraticEase { EasingMode = EasingMode.EaseOut }
};
zoomLevelAnimation.Completed += ZoomLevelAnimationCompleted;
BeginAnimation(ZoomLevelProperty, zoomLevelAnimation);
}
}
private void ZoomLevelAnimationCompleted(object sender, EventArgs e)
{
ZoomLevel = TargetZoomLevel;
zoomLevelAnimation.Completed -= ZoomLevelAnimationCompleted;
zoomLevelAnimation = null;
ResetTransformOrigin();
}
private double CoerceZoomLevelProperty(double zoomLevel)
{
return Math.Min(Math.Max(zoomLevel, MinZoomLevel), MaxZoomLevel);
}
private void HeadingPropertyChanged(double heading)
{
if (updateTransform)
{
UpdateTransform();
}
if (headingAnimation == null)
{
TargetHeading = heading;
}
}
private void TargetHeadingPropertyChanged(double targetHeading)
{
if (targetHeading != Heading)
{
if (headingAnimation != null)
{
headingAnimation.Completed -= HeadingAnimationCompleted;
}
double delta = targetHeading - Heading;
if (delta > 180d)
{
delta -= 360d;
}
else if (delta < -180d)
{
delta += 360d;
}
headingAnimation = new DoubleAnimation
{
From = Heading,
By = delta,
Duration = TimeSpan.FromSeconds(0.5),
FillBehavior = FillBehavior.Stop,
EasingFunction = new QuadraticEase { EasingMode = EasingMode.EaseOut }
};
headingAnimation.Completed += HeadingAnimationCompleted;
BeginAnimation(HeadingProperty, headingAnimation);
}
}
private void HeadingAnimationCompleted(object sender, EventArgs e)
{
Heading = TargetHeading;
headingAnimation.Completed -= HeadingAnimationCompleted;
headingAnimation = null;
}
private double CoerceHeadingProperty(double heading)
{
return ((heading % 360d) + 360d) % 360d;
}
private void UpdateTransform()
{
double scale;
if (transformOrigin != null)
{
scale = tileContainer.SetViewportTransform(ZoomLevel, Heading, MapTransform.Transform(transformOrigin), viewportOrigin, RenderSize);
updateTransform = false;
Center = ViewportPointToLocation(new Point(RenderSize.Width / 2d, RenderSize.Height / 2d));
updateTransform = true;
}
else
{
scale = tileContainer.SetViewportTransform(ZoomLevel, Heading, MapTransform.Transform(Center), viewportOrigin, RenderSize);
}
scale *= MapTransform.RelativeScale(Center) / MeterPerDegree; // Pixels per meter at center latitude
CenterScale = scale;
scaleTransform.ScaleX = scale;
scaleTransform.ScaleY = scale;
rotateTransform.Angle = Heading;
scaleRotateTransform.Matrix = scaleTransform.Value * rotateTransform.Value;
OnViewportChanged(); ManipulationDelta d = e.DeltaManipulation;
TransformMap(e.ManipulationOrigin, d.Translation, d.Rotation, (d.Scale.X + d.Scale.Y) / 2d);
} }
} }
} }

780
MapControl/MapBase.cs Normal file
View file

@ -0,0 +1,780 @@
// WPF MapControl - http://wpfmapcontrol.codeplex.com/
// Copyright © 2012 Clemens Fischer
// Licensed under the Microsoft Public License (Ms-PL)
using System;
using System.Collections.Specialized;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Media.Animation;
namespace MapControl
{
/// <summary>
/// The map control. Draws map content provided by the TileLayers or the BaseTileLayer property.
/// The visible map area is defined by the Center and ZoomLevel properties. The map can be rotated
/// by an angle that is given by the Heading property.
/// MapBase is a MapPanel and hence can contain map overlays like other MapPanels or MapItemsControls.
/// </summary>
public class MapBase : MapPanel
{
public const double MeterPerDegree = 1852d * 60d;
public static readonly DependencyProperty FontSizeProperty = Control.FontSizeProperty.AddOwner(typeof(MapBase));
public static readonly DependencyProperty FontFamilyProperty = Control.FontFamilyProperty.AddOwner(typeof(MapBase));
public static readonly DependencyProperty FontStyleProperty = Control.FontStyleProperty.AddOwner(typeof(MapBase));
public static readonly DependencyProperty FontWeightProperty = Control.FontWeightProperty.AddOwner(typeof(MapBase));
public static readonly DependencyProperty FontStretchProperty = Control.FontStretchProperty.AddOwner(typeof(MapBase));
public static readonly DependencyProperty ForegroundProperty = Control.ForegroundProperty.AddOwner(typeof(MapBase));
public static readonly DependencyProperty LightForegroundProperty = DependencyProperty.Register(
"LightForeground", typeof(Brush), typeof(MapBase));
public static readonly DependencyProperty DarkForegroundProperty = DependencyProperty.Register(
"DarkForeground", typeof(Brush), typeof(MapBase));
public static readonly DependencyProperty LightBackgroundProperty = DependencyProperty.Register(
"LightBackground", typeof(Brush), typeof(MapBase));
public static readonly DependencyProperty DarkBackgroundProperty = DependencyProperty.Register(
"DarkBackground", typeof(Brush), typeof(MapBase));
public static readonly DependencyProperty TileLayersProperty = DependencyProperty.Register(
"TileLayers", typeof(TileLayerCollection), typeof(MapBase), new FrameworkPropertyMetadata(
(o, e) => ((MapBase)o).TileLayersPropertyChanged((TileLayerCollection)e.OldValue, (TileLayerCollection)e.NewValue),
(o, v) => ((MapBase)o).CoerceTileLayersProperty((TileLayerCollection)v)));
public static readonly DependencyProperty BaseTileLayerProperty = DependencyProperty.Register(
"BaseTileLayer", typeof(TileLayer), typeof(MapBase), new FrameworkPropertyMetadata(
(o, e) => ((MapBase)o).BaseTileLayerPropertyChanged((TileLayer)e.NewValue),
(o, v) => ((MapBase)o).CoerceBaseTileLayerProperty((TileLayer)v)));
public static readonly DependencyProperty TileOpacityProperty = DependencyProperty.Register(
"TileOpacity", typeof(double), typeof(MapBase), new FrameworkPropertyMetadata(1d,
(o, e) => ((MapBase)o).tileContainer.Opacity = (double)e.NewValue));
public static readonly DependencyProperty CenterProperty = DependencyProperty.Register(
"Center", typeof(Location), typeof(MapBase), new FrameworkPropertyMetadata(new Location(), FrameworkPropertyMetadataOptions.BindsTwoWayByDefault,
(o, e) => ((MapBase)o).CenterPropertyChanged((Location)e.NewValue),
(o, v) => ((MapBase)o).CoerceCenterProperty((Location)v)));
public static readonly DependencyProperty TargetCenterProperty = DependencyProperty.Register(
"TargetCenter", typeof(Location), typeof(MapBase), new FrameworkPropertyMetadata(new Location(), FrameworkPropertyMetadataOptions.BindsTwoWayByDefault,
(o, e) => ((MapBase)o).TargetCenterPropertyChanged((Location)e.NewValue),
(o, v) => ((MapBase)o).CoerceCenterProperty((Location)v)));
public static readonly DependencyProperty ZoomLevelProperty = DependencyProperty.Register(
"ZoomLevel", typeof(double), typeof(MapBase), new FrameworkPropertyMetadata(1d, FrameworkPropertyMetadataOptions.BindsTwoWayByDefault,
(o, e) => ((MapBase)o).ZoomLevelPropertyChanged((double)e.NewValue),
(o, v) => ((MapBase)o).CoerceZoomLevelProperty((double)v)));
public static readonly DependencyProperty TargetZoomLevelProperty = DependencyProperty.Register(
"TargetZoomLevel", typeof(double), typeof(MapBase), new FrameworkPropertyMetadata(1d, FrameworkPropertyMetadataOptions.BindsTwoWayByDefault,
(o, e) => ((MapBase)o).TargetZoomLevelPropertyChanged((double)e.NewValue),
(o, v) => ((MapBase)o).CoerceZoomLevelProperty((double)v)));
public static readonly DependencyProperty HeadingProperty = DependencyProperty.Register(
"Heading", typeof(double), typeof(MapBase), new FrameworkPropertyMetadata(0d, FrameworkPropertyMetadataOptions.BindsTwoWayByDefault,
(o, e) => ((MapBase)o).HeadingPropertyChanged((double)e.NewValue),
(o, v) => ((MapBase)o).CoerceHeadingProperty((double)v)));
public static readonly DependencyProperty TargetHeadingProperty = DependencyProperty.Register(
"TargetHeading", typeof(double), typeof(MapBase), new FrameworkPropertyMetadata(0d, FrameworkPropertyMetadataOptions.BindsTwoWayByDefault,
(o, e) => ((MapBase)o).TargetHeadingPropertyChanged((double)e.NewValue),
(o, v) => ((MapBase)o).CoerceHeadingProperty((double)v)));
private static readonly DependencyPropertyKey CenterScalePropertyKey = DependencyProperty.RegisterReadOnly(
"CenterScale", typeof(double), typeof(MapBase), null);
public static readonly DependencyProperty CenterScaleProperty = CenterScalePropertyKey.DependencyProperty;
private readonly TileContainer tileContainer = new TileContainer();
private readonly MapTransform mapTransform = new MercatorTransform();
private readonly ScaleTransform scaleTransform = new ScaleTransform();
private readonly RotateTransform rotateTransform = new RotateTransform();
private readonly MatrixTransform scaleRotateTransform = new MatrixTransform();
private Location transformOrigin;
private Point viewportOrigin;
private LocationAnimation centerAnimation;
private DoubleAnimation zoomLevelAnimation;
private DoubleAnimation headingAnimation;
private bool updateTransform = true;
public MapBase()
{
ClipToBounds = true;
MinZoomLevel = 1;
MaxZoomLevel = 20;
AddVisualChild(tileContainer);
TileLayers = new TileLayerCollection();
SetValue(ParentMapPropertyKey, this);
Loaded += (o, e) =>
{
if (BaseTileLayer == null)
{
BaseTileLayer = new TileLayer
{
Name = "OpenStreetMap",
Description = "© {y} OpenStreetMap Contributors, CC-BY-SA",
TileSource = new TileSource("http://{c}.tile.openstreetmap.org/{z}/{x}/{y}.png")
};
}
};
}
/// <summary>
/// Raised when the current viewport has changed.
/// </summary>
public event EventHandler ViewportChanged;
public double MinZoomLevel { get; set; }
public double MaxZoomLevel { get; set; }
public double FontSize
{
get { return (double)GetValue(FontSizeProperty); }
set { SetValue(FontSizeProperty, value); }
}
public FontFamily FontFamily
{
get { return (FontFamily)GetValue(FontFamilyProperty); }
set { SetValue(FontFamilyProperty, value); }
}
public FontStyle FontStyle
{
get { return (FontStyle)GetValue(FontStyleProperty); }
set { SetValue(FontStyleProperty, value); }
}
public FontWeight FontWeight
{
get { return (FontWeight)GetValue(FontWeightProperty); }
set { SetValue(FontWeightProperty, value); }
}
public FontStretch FontStretch
{
get { return (FontStretch)GetValue(FontStretchProperty); }
set { SetValue(FontStretchProperty, value); }
}
public Brush Foreground
{
get { return (Brush)GetValue(ForegroundProperty); }
set { SetValue(ForegroundProperty, value); }
}
public Brush LightForeground
{
get { return (Brush)GetValue(LightForegroundProperty); }
set { SetValue(LightForegroundProperty, value); }
}
public Brush DarkForeground
{
get { return (Brush)GetValue(DarkForegroundProperty); }
set { SetValue(DarkForegroundProperty, value); }
}
public Brush LightBackground
{
get { return (Brush)GetValue(LightBackgroundProperty); }
set { SetValue(LightBackgroundProperty, value); }
}
public Brush DarkBackground
{
get { return (Brush)GetValue(DarkBackgroundProperty); }
set { SetValue(DarkBackgroundProperty, value); }
}
/// <summary>
/// Gets or sets the TileLayers used by this Map.
/// </summary>
public TileLayerCollection TileLayers
{
get { return (TileLayerCollection)GetValue(TileLayersProperty); }
set { SetValue(TileLayersProperty, value); }
}
/// <summary>
/// Gets or sets the base TileLayer used by this Map, i.e. TileLayers[0].
/// </summary>
public TileLayer BaseTileLayer
{
get { return (TileLayer)GetValue(BaseTileLayerProperty); }
set { SetValue(BaseTileLayerProperty, value); }
}
/// <summary>
/// Gets or sets the opacity of the tile layers.
/// </summary>
public double TileOpacity
{
get { return (double)GetValue(TileOpacityProperty); }
set { SetValue(TileOpacityProperty, value); }
}
/// <summary>
/// Gets or sets the location of the center point of the Map.
/// </summary>
public Location Center
{
get { return (Location)GetValue(CenterProperty); }
set { SetValue(CenterProperty, value); }
}
/// <summary>
/// Gets or sets the target value of a Center animation.
/// </summary>
public Location TargetCenter
{
get { return (Location)GetValue(TargetCenterProperty); }
set { SetValue(TargetCenterProperty, value); }
}
/// <summary>
/// Gets or sets the map zoom level.
/// </summary>
public double ZoomLevel
{
get { return (double)GetValue(ZoomLevelProperty); }
set { SetValue(ZoomLevelProperty, value); }
}
/// <summary>
/// Gets or sets the target value of a ZoomLevel animation.
/// </summary>
public double TargetZoomLevel
{
get { return (double)GetValue(TargetZoomLevelProperty); }
set { SetValue(TargetZoomLevelProperty, value); }
}
/// <summary>
/// Gets or sets the map heading, or clockwise rotation angle in degrees.
/// </summary>
public double Heading
{
get { return (double)GetValue(HeadingProperty); }
set { SetValue(HeadingProperty, value); }
}
/// <summary>
/// Gets or sets the target value of a Heading animation.
/// </summary>
public double TargetHeading
{
get { return (double)GetValue(TargetHeadingProperty); }
set { SetValue(TargetHeadingProperty, value); }
}
/// <summary>
/// Gets the map scale at the Center location as viewport coordinate units (pixels) per meter.
/// </summary>
public double CenterScale
{
get { return (double)GetValue(CenterScaleProperty); }
private set { SetValue(CenterScalePropertyKey, value); }
}
/// <summary>
/// Gets the transformation from geographic coordinates to cartesian map coordinates.
/// </summary>
public MapTransform MapTransform
{
get { return mapTransform; }
}
/// <summary>
/// Gets the transformation from cartesian map coordinates to viewport coordinates.
/// </summary>
public Transform ViewportTransform
{
get { return tileContainer.ViewportTransform; }
}
/// <summary>
/// Gets the scaling transformation from meters to viewport coordinate units (pixels)
/// at the viewport center point.
/// </summary>
public Transform ScaleTransform
{
get { return scaleTransform; }
}
/// <summary>
/// Gets the transformation that rotates by the value of the Heading property.
/// </summary>
public Transform RotateTransform
{
get { return rotateTransform; }
}
/// <summary>
/// Gets the combination of ScaleTransform and RotateTransform
/// </summary>
public Transform ScaleRotateTransform
{
get { return scaleRotateTransform; }
}
/// <summary>
/// Transforms a geographic location to a viewport coordinates point.
/// </summary>
public Point LocationToViewportPoint(Location location)
{
return ViewportTransform.Transform(MapTransform.Transform(location));
}
/// <summary>
/// Transforms a viewport coordinates point to a geographic location.
/// </summary>
public Location ViewportPointToLocation(Point point)
{
return MapTransform.TransformBack(ViewportTransform.Inverse.Transform(point));
}
/// <summary>
/// Sets a temporary origin location in geographic coordinates for scaling and rotation transformations.
/// This origin location is automatically removed when the Center property is set by application code.
/// </summary>
public void SetTransformOrigin(Location origin)
{
transformOrigin = origin;
viewportOrigin = LocationToViewportPoint(origin);
}
/// <summary>
/// Sets a temporary origin point in viewport coordinates for scaling and rotation transformations.
/// This origin point is automatically removed when the Center property is set by application code.
/// </summary>
public void SetTransformOrigin(Point origin)
{
viewportOrigin.X = Math.Min(Math.Max(origin.X, 0d), RenderSize.Width);
viewportOrigin.Y = Math.Min(Math.Max(origin.Y, 0d), RenderSize.Height);
transformOrigin = CoerceCenterProperty(ViewportPointToLocation(viewportOrigin));
}
/// <summary>
/// Removes the temporary transform origin point set by SetTransformOrigin.
/// </summary>
public void ResetTransformOrigin()
{
transformOrigin = null;
viewportOrigin = new Point(RenderSize.Width / 2d, RenderSize.Height / 2d);
}
/// <summary>
/// Changes the Center property according to the specified translation in viewport coordinates.
/// </summary>
public void TranslateMap(Vector translation)
{
if (translation.X != 0d || translation.Y != 0d)
{
if (transformOrigin != null)
{
viewportOrigin += translation;
UpdateTransform();
}
else
{
Center = ViewportPointToLocation(viewportOrigin - translation);
}
}
}
/// <summary>
/// Changes the Center, Heading and ZoomLevel properties according to the specified
/// viewport coordinate translation, rotation and scale delta values. Rotation and scaling
/// is performed relative to the specified origin point in viewport coordinates.
/// </summary>
public void TransformMap(Point origin, Vector translation, double rotation, double scale)
{
if (rotation != 0d || scale != 1d)
{
SetTransformOrigin(origin);
updateTransform = false;
Heading = (((Heading + rotation) % 360d) + 360d) % 360d;
ZoomLevel += Math.Log(scale, 2d);
updateTransform = true;
UpdateTransform();
}
ResetTransformOrigin();
TranslateMap(translation);
}
/// <summary>
/// Sets the value of the ZoomLevel property while retaining the specified origin point
/// in viewport coordinates.
/// </summary>
public void ZoomMap(Point origin, double zoomLevel)
{
double targetZoomLebel = TargetZoomLevel;
TargetZoomLevel = zoomLevel;
if (TargetZoomLevel != targetZoomLebel) // TargetZoomLevel might be coerced
{
SetTransformOrigin(origin);
}
}
/// <summary>
/// Gets the map scale at the specified location as viewport coordinate units (pixels) per meter.
/// </summary>
public double GetMapScale(Location location)
{
return mapTransform.RelativeScale(location) * Math.Pow(2d, ZoomLevel) * 256d / (MeterPerDegree * 360d);
}
protected override int VisualChildrenCount
{
get { return InternalChildren.Count + 1; }
}
protected override Visual GetVisualChild(int index)
{
if (index == 0)
{
return tileContainer;
}
return InternalChildren[index - 1];
}
protected override void OnRenderSizeChanged(SizeChangedInfo sizeInfo)
{
base.OnRenderSizeChanged(sizeInfo);
ResetTransformOrigin();
UpdateTransform();
}
protected override void OnRender(DrawingContext drawingContext)
{
drawingContext.DrawRectangle(Background, null, new Rect(RenderSize));
}
protected override void OnViewportChanged()
{
base.OnViewportChanged();
if (ViewportChanged != null)
{
ViewportChanged(this, EventArgs.Empty);
}
}
private void TileLayerCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
switch (e.Action)
{
case NotifyCollectionChangedAction.Add:
tileContainer.AddTileLayers(e.NewStartingIndex, e.NewItems.Cast<TileLayer>());
break;
case NotifyCollectionChangedAction.Remove:
tileContainer.RemoveTileLayers(e.OldStartingIndex, e.OldItems.Cast<TileLayer>());
break;
case NotifyCollectionChangedAction.Move:
case NotifyCollectionChangedAction.Replace:
tileContainer.RemoveTileLayers(e.OldStartingIndex, e.OldItems.Cast<TileLayer>());
tileContainer.AddTileLayers(e.NewStartingIndex, e.NewItems.Cast<TileLayer>());
break;
case NotifyCollectionChangedAction.Reset:
tileContainer.ClearTileLayers();
if (e.NewItems != null)
{
tileContainer.AddTileLayers(0, e.NewItems.Cast<TileLayer>());
}
break;
}
UpdateBaseTileLayer();
}
private void TileLayersPropertyChanged(TileLayerCollection oldTileLayers, TileLayerCollection newTileLayers)
{
tileContainer.ClearTileLayers();
if (oldTileLayers != null)
{
oldTileLayers.CollectionChanged -= TileLayerCollectionChanged;
}
if (newTileLayers != null)
{
newTileLayers.CollectionChanged += TileLayerCollectionChanged;
tileContainer.AddTileLayers(0, newTileLayers);
}
UpdateBaseTileLayer();
}
private TileLayerCollection CoerceTileLayersProperty(TileLayerCollection tileLayers)
{
if (tileLayers == null)
{
tileLayers = new TileLayerCollection();
}
return tileLayers;
}
private void BaseTileLayerPropertyChanged(TileLayer baseTileLayer)
{
if (baseTileLayer != null)
{
if (TileLayers.Count == 0)
{
TileLayers.Add(baseTileLayer);
}
else if (TileLayers[0] != baseTileLayer)
{
TileLayers[0] = baseTileLayer;
}
}
if (baseTileLayer != null && baseTileLayer.HasDarkBackground)
{
if (DarkForeground != null)
{
Foreground = DarkForeground;
}
if (DarkBackground != null)
{
Background = DarkBackground;
}
}
else
{
if (LightForeground != null)
{
Foreground = LightForeground;
}
if (LightBackground != null)
{
Background = LightBackground;
}
}
}
private TileLayer CoerceBaseTileLayerProperty(TileLayer baseTileLayer)
{
if (baseTileLayer == null && TileLayers.Count > 0)
{
baseTileLayer = TileLayers[0];
}
return baseTileLayer;
}
private void UpdateBaseTileLayer()
{
TileLayer baseTileLayer = TileLayers.FirstOrDefault();
if (BaseTileLayer != baseTileLayer)
{
BaseTileLayer = baseTileLayer;
}
}
private void CenterPropertyChanged(Location center)
{
if (updateTransform)
{
ResetTransformOrigin();
UpdateTransform();
}
if (centerAnimation == null)
{
TargetCenter = center;
}
}
private void TargetCenterPropertyChanged(Location targetCenter)
{
if (targetCenter != Center)
{
if (centerAnimation != null)
{
centerAnimation.Completed -= CenterAnimationCompleted;
}
centerAnimation = new LocationAnimation
{
From = Center,
To = targetCenter,
Duration = TimeSpan.FromSeconds(0.5),
FillBehavior = FillBehavior.Stop,
EasingFunction = new QuadraticEase { EasingMode = EasingMode.EaseOut }
};
centerAnimation.Completed += CenterAnimationCompleted;
BeginAnimation(CenterProperty, centerAnimation);
}
}
private void CenterAnimationCompleted(object sender, EventArgs e)
{
Center = TargetCenter;
centerAnimation.Completed -= CenterAnimationCompleted;
centerAnimation = null;
}
private Location CoerceCenterProperty(Location location)
{
location.Latitude = Math.Min(Math.Max(location.Latitude, -MapTransform.MaxLatitude), MapTransform.MaxLatitude);
location.Longitude = Location.NormalizeLongitude(location.Longitude);
return location;
}
private void ZoomLevelPropertyChanged(double zoomLevel)
{
if (updateTransform)
{
UpdateTransform();
}
if (zoomLevelAnimation == null)
{
TargetZoomLevel = zoomLevel;
}
}
private void TargetZoomLevelPropertyChanged(double targetZoomLevel)
{
if (targetZoomLevel != ZoomLevel)
{
if (zoomLevelAnimation != null)
{
zoomLevelAnimation.Completed -= ZoomLevelAnimationCompleted;
}
zoomLevelAnimation = new DoubleAnimation
{
From = ZoomLevel,
To = targetZoomLevel,
Duration = TimeSpan.FromSeconds(0.5),
FillBehavior = FillBehavior.Stop,
EasingFunction = new QuadraticEase { EasingMode = EasingMode.EaseOut }
};
zoomLevelAnimation.Completed += ZoomLevelAnimationCompleted;
BeginAnimation(ZoomLevelProperty, zoomLevelAnimation);
}
}
private void ZoomLevelAnimationCompleted(object sender, EventArgs e)
{
ZoomLevel = TargetZoomLevel;
zoomLevelAnimation.Completed -= ZoomLevelAnimationCompleted;
zoomLevelAnimation = null;
ResetTransformOrigin();
}
private double CoerceZoomLevelProperty(double zoomLevel)
{
return Math.Min(Math.Max(zoomLevel, MinZoomLevel), MaxZoomLevel);
}
private void HeadingPropertyChanged(double heading)
{
if (updateTransform)
{
UpdateTransform();
}
if (headingAnimation == null)
{
TargetHeading = heading;
}
}
private void TargetHeadingPropertyChanged(double targetHeading)
{
if (targetHeading != Heading)
{
if (headingAnimation != null)
{
headingAnimation.Completed -= HeadingAnimationCompleted;
}
double delta = targetHeading - Heading;
if (delta > 180d)
{
delta -= 360d;
}
else if (delta < -180d)
{
delta += 360d;
}
headingAnimation = new DoubleAnimation
{
From = Heading,
By = delta,
Duration = TimeSpan.FromSeconds(0.5),
FillBehavior = FillBehavior.Stop,
EasingFunction = new QuadraticEase { EasingMode = EasingMode.EaseOut }
};
headingAnimation.Completed += HeadingAnimationCompleted;
BeginAnimation(HeadingProperty, headingAnimation);
}
}
private void HeadingAnimationCompleted(object sender, EventArgs e)
{
Heading = TargetHeading;
headingAnimation.Completed -= HeadingAnimationCompleted;
headingAnimation = null;
}
private double CoerceHeadingProperty(double heading)
{
return ((heading % 360d) + 360d) % 360d;
}
private void UpdateTransform()
{
double scale;
if (transformOrigin != null)
{
scale = tileContainer.SetViewportTransform(ZoomLevel, Heading, MapTransform.Transform(transformOrigin), viewportOrigin, RenderSize);
updateTransform = false;
Center = ViewportPointToLocation(new Point(RenderSize.Width / 2d, RenderSize.Height / 2d));
updateTransform = true;
}
else
{
scale = tileContainer.SetViewportTransform(ZoomLevel, Heading, MapTransform.Transform(Center), viewportOrigin, RenderSize);
}
scale *= MapTransform.RelativeScale(Center) / MeterPerDegree; // Pixels per meter at center latitude
CenterScale = scale;
scaleTransform.ScaleX = scale;
scaleTransform.ScaleY = scale;
rotateTransform.Angle = Heading;
scaleRotateTransform.Matrix = scaleTransform.Value * rotateTransform.Value;
OnViewportChanged();
}
}
}

2
MapControl/MapControl.csproj
View file

@ -58,8 +58,8 @@
<Compile Include="MapPolyline.cs" /> <Compile Include="MapPolyline.cs" />
<Compile Include="Pushpin.cs" /> <Compile Include="Pushpin.cs" />
<Compile Include="MapTransform.cs" /> <Compile Include="MapTransform.cs" />
<Compile Include="MapBase.cs" />
<Compile Include="Map.cs" /> <Compile Include="Map.cs" />
<Compile Include="MapInput.cs" />
<Compile Include="MercatorTransform.cs" /> <Compile Include="MercatorTransform.cs" />
<Compile Include="Properties\AssemblyInfo.cs" /> <Compile Include="Properties\AssemblyInfo.cs" />
<Compile Include="Tile.cs" /> <Compile Include="Tile.cs" />

11
MapControl/MapElement.cs
View file

@ -19,21 +19,26 @@ namespace MapControl
new FrameworkPropertyMetadata(null, FrameworkPropertyMetadataOptions.Inherits, ParentMapPropertyChanged)); new FrameworkPropertyMetadata(null, FrameworkPropertyMetadataOptions.Inherits, ParentMapPropertyChanged));
} }
public Map ParentMap public MapBase ParentMap
{ {
get { return MapPanel.GetParentMap(this); } get { return MapPanel.GetParentMap(this); }
} }
protected abstract void OnViewportChanged(); protected abstract void OnViewportChanged();
private void OnViewportChanged(object sender, EventArgs e)
{
OnViewportChanged();
}
private static void ParentMapPropertyChanged(DependencyObject obj, DependencyPropertyChangedEventArgs e) private static void ParentMapPropertyChanged(DependencyObject obj, DependencyPropertyChangedEventArgs e)
{ {
MapElement mapElement = obj as MapElement; MapElement mapElement = obj as MapElement;
if (mapElement != null) if (mapElement != null)
{ {
Map oldParentMap = e.OldValue as Map; MapBase oldParentMap = e.OldValue as MapBase;
Map newParentMap = e.NewValue as Map; MapBase newParentMap = e.NewValue as MapBase;
if (oldParentMap != null) if (oldParentMap != null)
{ {

2
MapControl/MapGraticule.cs
View file

@ -127,7 +127,7 @@ namespace MapControl
protected override void OnViewportChanged() protected override void OnViewportChanged()
{ {
Map parentMap = ParentMap; MapBase parentMap = ParentMap;
Rect bounds = parentMap.ViewportTransform.Inverse.TransformBounds(new Rect(parentMap.RenderSize)); Rect bounds = parentMap.ViewportTransform.Inverse.TransformBounds(new Rect(parentMap.RenderSize));
Location loc1 = parentMap.MapTransform.TransformBack(bounds.TopLeft); Location loc1 = parentMap.MapTransform.TransformBack(bounds.TopLeft);
Location loc2 = parentMap.MapTransform.TransformBack(bounds.BottomRight); Location loc2 = parentMap.MapTransform.TransformBack(bounds.BottomRight);

2
MapControl/MapItem.cs
View file

@ -43,7 +43,7 @@ namespace MapControl
IsEnabledChanged += IsEnabledPropertyChanged; IsEnabledChanged += IsEnabledPropertyChanged;
} }
public Map ParentMap public MapBase ParentMap
{ {
get { return MapPanel.GetParentMap(this); } get { return MapPanel.GetParentMap(this); }
} }

18
MapControl/MapItemsControl.cs
View file

@ -40,7 +40,7 @@ namespace MapControl
Items.CurrentChanged += OnCurrentItemChanged; Items.CurrentChanged += OnCurrentItemChanged;
} }
public Map ParentMap public MapBase ParentMap
{ {
get { return MapPanel.GetParentMap(this); } get { return MapPanel.GetParentMap(this); }
} }
@ -67,12 +67,12 @@ namespace MapControl
element.SetValue(IsCurrentPropertyKey, value); element.SetValue(IsCurrentPropertyKey, value);
} }
public UIElement GetContainer(object item) public UIElement ContainerFromItem(object item)
{ {
return item != null ? ItemContainerGenerator.ContainerFromItem(item) as UIElement : null; return item != null ? ItemContainerGenerator.ContainerFromItem(item) as UIElement : null;
} }
public object GetItem(DependencyObject container) public object ItemFromContainer(DependencyObject container)
{ {
return container != null ? ItemContainerGenerator.ItemFromContainer(container) : null; return container != null ? ItemContainerGenerator.ItemFromContainer(container) : null;
} }
@ -124,9 +124,9 @@ namespace MapControl
} }
else if ((Keyboard.Modifiers & ModifierKeys.Shift) == 0) else if ((Keyboard.Modifiers & ModifierKeys.Shift) == 0)
{ {
SelectedItem = GetItem(container); SelectedItem = ItemFromContainer(container);
} }
else if ((selectedContainer = GetContainer(SelectedItem)) != null) else if ((selectedContainer = ContainerFromItem(SelectedItem)) != null)
{ {
Point? p1 = MapPanel.GetViewportPosition(selectedContainer); Point? p1 = MapPanel.GetViewportPosition(selectedContainer);
Point? p2 = MapPanel.GetViewportPosition(container); Point? p2 = MapPanel.GetViewportPosition(container);
@ -166,7 +166,7 @@ namespace MapControl
private void OnCurrentItemChanging(object sender, CurrentChangingEventArgs e) private void OnCurrentItemChanging(object sender, CurrentChangingEventArgs e)
{ {
UIElement container = GetContainer(Items.CurrentItem); UIElement container = ContainerFromItem(Items.CurrentItem);
if (container != null) if (container != null)
{ {
@ -176,7 +176,7 @@ namespace MapControl
private void OnCurrentItemChanged(object sender, EventArgs e) private void OnCurrentItemChanged(object sender, EventArgs e)
{ {
UIElement container = GetContainer(Items.CurrentItem); UIElement container = ContainerFromItem(Items.CurrentItem);
if (container != null) if (container != null)
{ {
@ -236,7 +236,7 @@ namespace MapControl
private bool IsItemInGeometry(object item, Geometry geometry) private bool IsItemInGeometry(object item, Geometry geometry)
{ {
UIElement container = GetContainer(item); UIElement container = ContainerFromItem(item);
Point? viewportPosition; Point? viewportPosition;
return container != null return container != null
@ -246,7 +246,7 @@ namespace MapControl
private bool IsItemInRect(object item, Rect rect) private bool IsItemInRect(object item, Rect rect)
{ {
UIElement container = GetContainer(item); UIElement container = ContainerFromItem(item);
Point? viewportPosition; Point? viewportPosition;
return container != null return container != null

27
MapControl/MapPanel.cs
View file

@ -2,6 +2,7 @@
// Copyright © 2012 Clemens Fischer // Copyright © 2012 Clemens Fischer
// Licensed under the Microsoft Public License (Ms-PL) // Licensed under the Microsoft Public License (Ms-PL)
using System;
using System.Windows; using System.Windows;
using System.Windows.Controls; using System.Windows.Controls;
@ -15,7 +16,7 @@ namespace MapControl
public class MapPanel : Panel public class MapPanel : Panel
{ {
internal static readonly DependencyPropertyKey ParentMapPropertyKey = DependencyProperty.RegisterAttachedReadOnly( internal static readonly DependencyPropertyKey ParentMapPropertyKey = DependencyProperty.RegisterAttachedReadOnly(
"ParentMap", typeof(Map), typeof(MapPanel), "ParentMap", typeof(MapBase), typeof(MapPanel),
new FrameworkPropertyMetadata(null, FrameworkPropertyMetadataOptions.Inherits, ParentMapPropertyChanged)); new FrameworkPropertyMetadata(null, FrameworkPropertyMetadataOptions.Inherits, ParentMapPropertyChanged));
public static readonly DependencyProperty ParentMapProperty = ParentMapPropertyKey.DependencyProperty; public static readonly DependencyProperty ParentMapProperty = ParentMapPropertyKey.DependencyProperty;
@ -30,19 +31,14 @@ namespace MapControl
"Location", typeof(Location), typeof(MapPanel), "Location", typeof(Location), typeof(MapPanel),
new FrameworkPropertyMetadata(LocationPropertyChanged)); new FrameworkPropertyMetadata(LocationPropertyChanged));
public MapPanel() public MapBase ParentMap
{ {
ClipToBounds = true; get { return (MapBase)GetValue(ParentMapProperty); }
} }
public Map ParentMap public static MapBase GetParentMap(UIElement element)
{ {
get { return (Map)GetValue(ParentMapProperty); } return (MapBase)element.GetValue(ParentMapProperty);
}
public static Map GetParentMap(UIElement element)
{
return (Map)element.GetValue(ParentMapProperty);
} }
public static Point? GetViewportPosition(UIElement element) public static Point? GetViewportPosition(UIElement element)
@ -104,14 +100,19 @@ namespace MapControl
} }
} }
private void OnViewportChanged(object sender, EventArgs e)
{
OnViewportChanged();
}
private static void ParentMapPropertyChanged(DependencyObject obj, DependencyPropertyChangedEventArgs e) private static void ParentMapPropertyChanged(DependencyObject obj, DependencyPropertyChangedEventArgs e)
{ {
MapPanel mapPanel = obj as MapPanel; MapPanel mapPanel = obj as MapPanel;
if (mapPanel != null) if (mapPanel != null)
{ {
Map oldParentMap = e.OldValue as Map; MapBase oldParentMap = e.OldValue as MapBase;
Map newParentMap = e.NewValue as Map; MapBase newParentMap = e.NewValue as MapBase;
if (oldParentMap != null && oldParentMap != mapPanel) if (oldParentMap != null && oldParentMap != mapPanel)
{ {
@ -154,7 +155,7 @@ namespace MapControl
} }
} }
private static void SetViewportPosition(UIElement element, Map parentMap, Location location) private static void SetViewportPosition(UIElement element, MapBase parentMap, Location location)
{ {
Point? viewportPosition = null; Point? viewportPosition = null;

2
MapControl/MapPolyline.cs
View file

@ -162,7 +162,7 @@ namespace MapControl
if (TransformStroke) if (TransformStroke)
{ {
scale = ParentMap.CenterScale * Map.MeterPerDegree; scale = ParentMap.CenterScale * MapBase.MeterPerDegree;
} }
drawing.Pen.Thickness = scale * StrokeThickness; drawing.Pen.Thickness = scale * StrokeThickness;

2
MapControl/Pushpin.cs
View file

@ -23,7 +23,7 @@ namespace MapControl
typeof(Pushpin), new FrameworkPropertyMetadata(typeof(Pushpin))); typeof(Pushpin), new FrameworkPropertyMetadata(typeof(Pushpin)));
} }
public Map ParentMap public MapBase ParentMap
{ {
get { return MapPanel.GetParentMap(this); } get { return MapPanel.GetParentMap(this); }
} }