Fix window hover detection; add redaction tool

Window detection was broken by wrong CG-to-AppKit coordinate conversion
of the cursor and highlight rects — both now go through the same
cgToAppKit mapping. The draw toolbar gains a Pen/Redact toggle: redact
drags cover content with a solid black bar (participates in undo/redo
and export like pen strokes).

💘 Generated with Crush

Assisted-by: Crush:deepseek-v4-flash-0731

README.md

@@ -25,11 +25,14 @@ No network calls, no API keys — everything runs locally.
 ## Install with Homebrew
 
 ```bash
-brew tap TZGyn/tap
+brew tap TZGyn/tap https://gitea.tzgyn.dev/TZGyn/homebrew-tap.git
-brew trust TZGyn/tap          # Homebrew 6+ requires trusting third-party taps
+brew trust TZGyn/tap
 brew install --cask kapture
 ```
 
+The tap is hosted on Gitea, so the full URL is required. Homebrew may print
+an "Unsupported tap" warning — it's harmless.
+
 Releases are published as zips on GitHub Releases; `release.sh` packages a
 new one (`./release.sh 1.0.1 && git tag v1.0.1 && git push origin v1.0.1`).
 The cask lives in the [TZGyn/homebrew-tap](https://github.com/TZGyn/homebrew-tap)

Sources/Kapture/OverlayView.swift

@@ -97,24 +97,19 @@ final class OverlayView: NSView {
 
     private func windowFrame(at point: NSPoint) -> NSRect? {
         guard let window = window else { return nil }
-        let screenPoint = window.convertToScreen(NSRect(origin: point, size: .zero))
+        // convertToScreen gives AppKit-global coordinates; convert tracked
-        // CGWindowList bounds use a TOP-LEFT origin; convert the cursor point.
+        // CG frames to the same space and pick the frontmost containing it.
-        guard let mainScreen = NSScreen.screens.first else { return nil }
+        let screenPoint = window.convertToScreen(NSRect(origin: point, size: .zero)).origin
-        let topLeftPoint = NSPoint(
-            x: screenPoint.origin.x,
-            y: mainScreen.frame.height - screenPoint.origin.y
-        )
-        // Pick the frontmost (list order) window containing the point
         for (_, frame) in trackedWindows {
-            if frame.contains(topLeftPoint) {
+            if Self.cgToAppKit(rect: frame).contains(screenPoint) {
                 return frame
             }
         }
         return nil
     }
 
-    /// Convert a CGWindowList (top-left origin) frame into AppKit screen
+    /// Convert a CGWindowList (top-left origin, CG global space) frame into
-    /// coordinates (bottom-left origin) for capture.
+    /// AppKit screen coordinates (bottom-left origin) for capture.
     private static func cgToAppKit(rect: NSRect) -> NSRect {
         guard let mainScreen = NSScreen.screens.first else { return rect }
         let y = mainScreen.frame.height - rect.origin.y - rect.height
@@ -189,12 +184,13 @@ final class OverlayView: NSView {
 
         // Highlight the hovered window (rounded, like the real window corners)
         if let frame = hoveredWindowFrame {
-            // Convert CGWindowList (top-left) frame to view (bottom-left) space
+            // Convert the CG frame to AppKit-global, then to this view's space.
-            guard let window = window, let mainScreen = NSScreen.screens.first else { return }
+            guard let window = window else { return }
             let screenFrame = window.convertToScreen(NSRect(origin: .zero, size: bounds.size))
+            let appKitFrame = Self.cgToAppKit(rect: frame)
             let viewFrame = NSRect(
-                x: frame.origin.x - screenFrame.origin.x,
+                x: appKitFrame.origin.x - screenFrame.origin.x,
-                y: mainScreen.frame.height - frame.origin.y - frame.height - screenFrame.origin.y,
+                y: appKitFrame.origin.y - screenFrame.origin.y,
                 width: frame.width,
                 height: frame.height
             )

Sources/Kapture/ResultWindow.swift

@@ -96,6 +96,8 @@ final class CaptureModel: ObservableObject {
     @Published var redoStack: [Stroke] = []
     /// Whether the pen is active (drag draws instead of selecting)
     @Published var isDrawing = false
+    /// Whether drawing redacts (black bar) instead of pen strokes
+    @Published var isRedacting = false
     /// Current drawing color
     @Published var drawColor: NSColor = .systemRed
     /// Stroke thickness in points (image space)
@@ -105,6 +107,7 @@ final class CaptureModel: ObservableObject {
         let points: [CGPoint]
         let width: CGFloat
         let color: NSColor
+        var isRedaction: Bool = false
     }
 
     enum CaptureMode {
@@ -159,6 +162,20 @@ final class CaptureModel: ObservableObject {
         ctx.setLineJoin(.round)
         for stroke in strokes {
             guard stroke.points.count > 1 else { continue }
+            if stroke.isRedaction {
+                // Redaction bar: filled black rect covering the stroke bounds,
+                // padded so it fully covers text.
+                let xs = stroke.points.map { $0.x }
+                let ys = stroke.points.map { $0.y }
+                let bar = NSRect(
+                    x: xs.min()! - 2,
+                    y: ys.min()! - 2,
+                    width: (xs.max()! - xs.min()!) + 4,
+                    height: max(stroke.width, ys.max()! - ys.min()!) + 4
+                )
+                NSColor.black.setFill()
+                NSBezierPath(rect: bar).fill()
+            } else {
                 stroke.color.setStroke()
                 ctx.setLineWidth(stroke.width)
                 ctx.beginPath()
@@ -168,6 +185,7 @@ final class CaptureModel: ObservableObject {
                 }
                 ctx.strokePath()
             }
+        }
         ctx.restoreGState()
         NSGraphicsContext.restoreGraphicsState()
         return rep.cgImage ?? image
@@ -175,7 +193,13 @@ final class CaptureModel: ObservableObject {
 
     func addStroke(_ points: [CGPoint]) {
         guard points.count > 1 else { return }
+        if isRedacting {
+            // Redaction: a filled black bar from start to end, as thick as the
+            // current stroke width (drawn as a rect for clean edges).
+            strokes.append(Stroke(points: points, width: max(strokeWidth, 12), color: .black, isRedaction: true))
+        } else {
             strokes.append(Stroke(points: points, width: strokeWidth, color: drawColor))
+        }
         redoStack = []
     }
 
@@ -351,12 +375,17 @@ struct ResultView: View {
             // Draw toolbar (only when drawing)
             if model.isDrawing {
                 HStack(spacing: 14) {
-                    Label("Draw", systemImage: "pencil.tip")
+                    Picker("", selection: $model.isRedacting) {
-                        .font(.caption)
+                        Label("Pen", systemImage: "pencil.tip").tag(false)
-                        .foregroundStyle(.secondary)
+                        Label("Redact", systemImage: "rectangle.fill").tag(true)
+                    }
+                    .pickerStyle(.segmented)
+                    .fixedSize()
+                    .help("Pen draws strokes; Redact covers text with a black bar")
 
                     Divider().frame(height: 18)
 
+                    if !model.isRedacting {
                         HStack(spacing: 6) {
                             Image(systemName: "circle.fill").font(.system(size: 4))
                             Image(systemName: "circle.fill").font(.system(size: 7))
@@ -376,6 +405,7 @@ struct ResultView: View {
                         .labelsHidden()
                         .frame(width: 28)
                         .help("Drawing color")
+                    }
 
                     Spacer()
 
@@ -515,6 +545,17 @@ struct ScreenshotPane: View {
                 Canvas { context, _ in
                     for stroke in model.strokes {
                         guard stroke.points.count > 1 else { continue }
+                        if stroke.isRedaction {
+                            let xs = stroke.points.map { $0.x }
+                            let ys = stroke.points.map { $0.y }
+                            let bar = CGRect(
+                                x: origin.x + (xs.min()! - 2) * scale,
+                                y: origin.y + (ys.min()! - 2) * scale,
+                                width: ((xs.max()! - xs.min()!) + 4) * scale,
+                                height: (max(stroke.width, ys.max()! - ys.min()!) + 4) * scale
+                            )
+                            context.fill(Path(bar), with: .color(.black))
+                        } else {
                             var path = Path()
                             path.move(to: CGPoint(x: origin.x + stroke.points[0].x * scale, y: origin.y + stroke.points[0].y * scale))
                             for point in stroke.points.dropFirst() {
@@ -523,6 +564,7 @@ struct ScreenshotPane: View {
                             context.stroke(path, with: .color(Color(nsColor: stroke.color)), lineWidth: stroke.width)
                         }
                     }
+                }
                 .allowsHitTesting(false)
 
                 // In-progress stroke

build-app.sh

@@ -108,9 +108,9 @@ cat > "$APP/Contents/Info.plist" <<'PLIST'
     <key>CFBundleIconFile</key>
     <string>Icon</string>
     <key>CFBundleShortVersionString</key>
-    <string>1.5.0</string>
+    <string>1.5.1</string>
     <key>CFBundleVersion</key>
-    <string>50</string>
+    <string>51</string>
     <key>LSUIElement</key>
     <true/>
     <key>NSHighResolutionCapable</key>