From 51d28ab0b267396ae8dc813327708ce268053a53 Mon Sep 17 00:00:00 2001
From: Adrian Schoenig <adrian@schoenig.me>
Date: Wed, 18 Sep 2024 10:34:48 +1000
Subject: [PATCH] Allow setting map backdrop on GeoMap

---
 Sources/GeoDrawer/GeoMap+AppKit.swift | 19 +++++++++++++++++--
 Sources/GeoDrawer/GeoMap+UIKit.swift  | 11 ++++++++++-
 2 files changed, 27 insertions(+), 3 deletions(-)

diff --git a/Sources/GeoDrawer/GeoMap+AppKit.swift b/Sources/GeoDrawer/GeoMap+AppKit.swift
index ecf21af..a586c80 100644
--- a/Sources/GeoDrawer/GeoMap+AppKit.swift
+++ b/Sources/GeoDrawer/GeoMap+AppKit.swift
@@ -52,7 +52,12 @@ public class GeoMapView: NSView {
     }
   }
 
-  
+  public var mapBackdrop: NSColor = .white {
+    didSet {
+      setNeedsDisplay(bounds)
+    }
+  }
+
   public override var frame: NSRect {
     didSet {
       _drawer = nil
@@ -87,6 +92,7 @@ public class GeoMapView: NSView {
       contents,
       mapBackground: mapBackground.cgColor,
       mapOutline: mapOutline.cgColor,
+      mapBackdrop: mapBackdrop.cgColor,
       in: context
     )
   }
@@ -95,13 +101,14 @@ public class GeoMapView: NSView {
 @available(macOS 10.15, *)
 public struct GeoMap: NSViewRepresentable {
   
-  public init(contents: [GeoDrawer.Content] = [], projection: Projection = Projections.Equirectangular(), zoomTo: GeoJSON.BoundingBox? = nil, insets: GeoProjector.EdgeInsets = .zero, mapBackground: NSColor? = nil, mapOutline: NSColor? = nil) {
+  public init(contents: [GeoDrawer.Content] = [], projection: Projection = Projections.Equirectangular(), zoomTo: GeoJSON.BoundingBox? = nil, insets: GeoProjector.EdgeInsets = .zero, mapBackground: NSColor? = nil, mapOutline: NSColor? = nil, mapBackdrop: NSColor? = nil) {
     self.contents = contents
     self.projection = projection
     self.zoomTo = zoomTo
     self.insets = insets
     self.mapBackground = mapBackground
     self.mapOutline = mapOutline
+    self.mapBackdrop = mapBackdrop
   }
   
   public var contents: [GeoDrawer.Content] = []
@@ -116,6 +123,8 @@ public struct GeoMap: NSViewRepresentable {
   
   public var mapOutline: NSColor? = nil
   
+  public var mapBackdrop: NSColor? = nil
+  
   public typealias NSViewType = GeoMapView
   
   public func makeNSView(context: Context) -> GeoMapView {
@@ -130,6 +139,9 @@ public struct GeoMap: NSViewRepresentable {
     if let mapOutline {
       view.mapOutline = mapOutline
     }
+    if let mapBackdrop {
+      view.mapBackdrop = mapBackdrop
+    }
     return view
   }
   
@@ -144,6 +156,9 @@ public struct GeoMap: NSViewRepresentable {
     if let mapOutline {
       view.mapOutline = mapOutline
     }
+    if let mapBackdrop {
+      view.mapBackdrop = mapBackdrop
+    }
   }
 
 }
diff --git a/Sources/GeoDrawer/GeoMap+UIKit.swift b/Sources/GeoDrawer/GeoMap+UIKit.swift
index 8120c82..6410244 100644
--- a/Sources/GeoDrawer/GeoMap+UIKit.swift
+++ b/Sources/GeoDrawer/GeoMap+UIKit.swift
@@ -108,13 +108,14 @@ public class GeoMapView: UIView {
 @available(iOS 13.0, visionOS 1.0, *)
 public struct GeoMap: UIViewRepresentable {
   
-  public init(contents: [GeoDrawer.Content] = [], projection: Projection = Projections.Equirectangular(), zoomTo: GeoJSON.BoundingBox? = nil, insets: GeoProjector.EdgeInsets = .zero, mapBackground: UIColor? = nil, mapOutline: UIColor? = nil) {
+  public init(contents: [GeoDrawer.Content] = [], projection: Projection = Projections.Equirectangular(), zoomTo: GeoJSON.BoundingBox? = nil, insets: GeoProjector.EdgeInsets = .zero, mapBackground: UIColor? = nil, mapOutline: UIColor? = nil, mapBackdrop: UIColor? = nil) {
     self.contents = contents
     self.projection = projection
     self.zoomTo = zoomTo
     self.insets = insets
     self.mapBackground = mapBackground
     self.mapOutline = mapOutline
+    self.mapBackdrop = mapBackdrop
   }
   
   public var contents: [GeoDrawer.Content] = []
@@ -129,6 +130,8 @@ public struct GeoMap: UIViewRepresentable {
   
   public var mapOutline: UIColor? = nil
   
+  public var mapBackdrop: UIColor? = nil
+  
   public typealias UIViewType = GeoMapView
   
   public func makeUIView(context: Context) -> GeoMapView {
@@ -143,6 +146,9 @@ public struct GeoMap: UIViewRepresentable {
     if let mapOutline {
       view.mapOutline = mapOutline
     }
+    if let mapBackdrop {
+      view.backgroundColor = mapBackdrop
+    }
     return view
   }
   
@@ -157,6 +163,9 @@ public struct GeoMap: UIViewRepresentable {
     if let mapOutline {
       view.mapOutline = mapOutline
     }
+    if let mapBackdrop {
+      view.backgroundColor = mapBackdrop
+    }
   }
 
 }