关键节点

editor/app/Platform/Win32/Chrome/BorderlessWindowFrame.h

@@ -0,0 +1,46 @@
+#pragma once
+
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif
+
+#include <XCEngine/UI/Types.h>
+
+#include <windows.h>
+
+namespace XCEngine::UI::Editor::Host {
+
+enum class BorderlessWindowResizeEdge : std::uint8_t {
+    None = 0,
+    Left,
+    Top,
+    Right,
+    Bottom,
+    TopLeft,
+    TopRight,
+    BottomLeft,
+    BottomRight
+};
+
+struct BorderlessWindowFrameMetrics {
+    float resizeBorderThickness = 6.0f;
+    int minimumOuterWidth = 640;
+    int minimumOuterHeight = 360;
+};
+
+BorderlessWindowResizeEdge HitTestBorderlessWindowResizeEdge(
+    const ::XCEngine::UI::UIRect& clientRect,
+    const ::XCEngine::UI::UIPoint& point,
+    const BorderlessWindowFrameMetrics& metrics = {});
+
+LPCWSTR ResolveBorderlessWindowResizeCursor(BorderlessWindowResizeEdge edge);
+
+RECT ComputeBorderlessWindowResizeRect(
+    const RECT& initialRect,
+    const POINT& initialScreenPoint,
+    const POINT& currentScreenPoint,
+    BorderlessWindowResizeEdge edge,
+    int minimumOuterWidth,
+    int minimumOuterHeight);
+
+} // namespace XCEngine::UI::Editor::Host