feat: Development commit

1 files changed, 89 insertions, 0 deletions

diff --git a/Sora/Views/InteractiveImageView.swift b/Sora/Views/InteractiveImageView.swift
new file mode 100644
index 0000000..7afde7d
--- /dev/null
+++ b/Sora/Views/InteractiveImageView.swift
@@ -0,0 +1,89 @@
+import SwiftUI
+
+struct InteractiveImageView: View {
+  let image: Image
+  @State private var screenWidth = 0.0
+  @State private var screenHeight = 0.0
+  @State private var currentScale = 1.0
+  @State private var previousScale = 0.0
+  @State private var currentOffset: CGSize = .zero
+  @State private var previousOffset: CGSize = .zero
+
+  var body: some View {
+    GeometryReader { geometry in
+      VStack {
+        image
+          .resizable()
+          .scaledToFit()
+          .scaleEffect(currentScale)
+          .offset(currentOffset)
+          .frame(width: screenWidth, height: screenHeight)
+          .clipped()
+          .gesture(
+            MagnifyGesture()
+              .onChanged { gesture in
+                withAnimation(.interactiveSpring()) {
+                  currentScale =
+                    previousScale + gesture.magnification - (previousScale == 0 ? 0 : 1)
+                }
+              }
+              .onEnded { _ in
+                previousScale = currentScale
+              }
+              .simultaneously(
+                with: DragGesture(minimumDistance: 0)
+                  .onChanged { gesture in
+                    withAnimation(.interactiveSpring()) {
+                      var newOffset: CGSize = .zero
+                      let offset = gesture.translation
+
+                      newOffset.width = offset.width + previousOffset.width
+                      newOffset.height = offset.height + previousOffset.height
+
+                      currentOffset = clampOffset(offset: newOffset)
+                    }
+                  }
+                  .onEnded { _ in
+                    previousOffset = currentOffset
+                  }
+              )
+          )
+          .highPriorityGesture(
+            TapGesture(count: 2)
+              .onEnded {
+                withAnimation {
+                  currentScale = 1.0
+                  previousScale = 0
+                  currentOffset = .zero
+                  previousOffset = .zero
+                }
+              }
+          )
+      }
+      .onAppear {
+        screenWidth = geometry.size.width
+        screenHeight = geometry.size.height
+      }
+    }
+  }
+
+  private func clampOffset(offset: CGSize = .zero) -> CGSize {
+    var newOffset = offset
+
+    if currentScale > 1 {
+      let maxX = ((screenWidth * currentScale) - screenWidth) / 2
+      let maxY = ((screenHeight * currentScale) - screenHeight) / 2
+
+      newOffset.width = min(max(-maxX, newOffset.width), maxX)
+      newOffset.height = min(max(-maxY, newOffset.height), maxY)
+    } else {
+      newOffset = .zero
+    }
+
+    return newOffset
+  }
+}
+
+#Preview {
+  InteractiveImageView(image: Image(systemName: "photo"))
+}