초기 커밋: SheetMe 서식생성기 (P0~P5 완료 상태)

레거시 서식생성기(VB.NET WinForms) 대체용 C#/.NET 10 WPF 디자이너. 기준선: 실DB 활성 디자인 1,271건 왕복 의미론 diff 0 / 예외 0, 단위 테스트 49/49. 이 커밋에 함께 포함된 자격증명 분리: - appsettings.json 을 __HOST__/__PASSWORD__ 플레이스홀더로 전환 - 실접속 정보는 appsettings.Development.json 으로 분리(.gitignore 제외, csproj Debug 조건부 복사라 Release 산출물에 실리지 않음) - ConfigLoader 를 환경변수 > Development > appsettings 순 레이어링으로 변경, 미치환 플레이스홀더는 '미설정'으로 간주 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-08-11 17:20:22 +09:00
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+using System.Windows;
+using System.Windows.Input;
+using Microsoft.Xaml.Behaviors;
+using SheetMe.Designer.Services;
+using SheetMe.Designer.ViewModels;
+
+namespace SheetMe.Designer.Behaviors;
+
+/// <summary>
+/// 캔버스 마우스 입력 → 월드 좌표 → InteractionController 위임.
+/// World 요소(LayoutTransform 줌 하위)에 부착 — GetPosition(World)가 줌 불변 논리좌표를 반환.
+/// 로직 없음: 좌표 변환·캡처·커서 매핑만 담당.
+/// </summary>
+public sealed class CanvasMouseBehavior : Behavior<FrameworkElement>
+{
+    #region Methods
+    protected override void OnAttached()
+    {
+        base.OnAttached();
+        AssociatedObject.MouseLeftButtonDown += OnMouseDown;
+        AssociatedObject.MouseMove += OnMouseMove;
+        AssociatedObject.MouseLeftButtonUp += OnMouseUp;
+        AssociatedObject.LostMouseCapture += OnLostCapture;
+    }
+
+    protected override void OnDetaching()
+    {
+        AssociatedObject.MouseLeftButtonDown -= OnMouseDown;
+        AssociatedObject.MouseMove -= OnMouseMove;
+        AssociatedObject.MouseLeftButtonUp -= OnMouseUp;
+        AssociatedObject.LostMouseCapture -= OnLostCapture;
+        base.OnDetaching();
+    }
+
+    private DesignerViewModel? Designer => AssociatedObject.DataContext as DesignerViewModel;
+
+    private static PointerContext ContextOf(int clickCount = 1) => new(
+        Keyboard.Modifiers.HasFlag(ModifierKeys.Control),
+        Keyboard.Modifiers.HasFlag(ModifierKeys.Shift),
+        Keyboard.Modifiers.HasFlag(ModifierKeys.Alt),
+        clickCount);
+
+    private void OnMouseDown(object sender, MouseButtonEventArgs e)
+    {
+        if (Designer is not { } designer)
+        {
+            return;
+        }
+        // 키보드 포커스를 캔버스 컨테이너(Focusable 상위)로 — 단축키 수신
+        FocusCanvasHost();
+
+        designer.Interaction.PointerDown(e.GetPosition(AssociatedObject), ContextOf(e.ClickCount));
+        AssociatedObject.CaptureMouse();
+        e.Handled = true;
+    }
+
+    private void OnMouseMove(object sender, MouseEventArgs e)
+    {
+        if (Designer is not { } designer)
+        {
+            return;
+        }
+        var world = e.GetPosition(AssociatedObject);
+        if (e.LeftButton == MouseButtonState.Pressed && AssociatedObject.IsMouseCaptured)
+        {
+            designer.Interaction.PointerMove(world, ContextOf());
+        }
+        AssociatedObject.Cursor = MapCursor(designer.Interaction.CursorAt(world));
+    }
+
+    private void OnMouseUp(object sender, MouseButtonEventArgs e)
+    {
+        if (Designer is not { } designer)
+        {
+            return;
+        }
+        designer.Interaction.PointerUp(e.GetPosition(AssociatedObject), ContextOf());
+        AssociatedObject.ReleaseMouseCapture();
+        e.Handled = true;
+    }
+
+    private void OnLostCapture(object sender, MouseEventArgs e)
+        => Designer?.Interaction.CancelDrag(); // 정상 업 이후에는 no-op — 선택 유지
+
+    private void FocusCanvasHost()
+    {
+        // 상위 DesignerCanvasView(Focusable)로 포커스 — 키보드 단축키 수신
+        DependencyObject? current = AssociatedObject;
+        while (current is not null)
+        {
+            if (current is FrameworkElement { Focusable: true } focusable)
+            {
+                focusable.Focus();
+                return;
+            }
+            current = System.Windows.Media.VisualTreeHelper.GetParent(current);
+        }
+    }
+
+    private static Cursor MapCursor(CursorKind kind) => kind switch
+    {
+        CursorKind.SizeAll => Cursors.SizeAll,
+        CursorKind.SizeNWSE => Cursors.SizeNWSE,
+        CursorKind.SizeNESW => Cursors.SizeNESW,
+        CursorKind.SizeNS => Cursors.SizeNS,
+        CursorKind.SizeWE => Cursors.SizeWE,
+        _ => Cursors.Arrow,
+    };
+    #endregion
+}