3 files changed, 113 insertions, 4 deletions

diff --git a/include/cru/osx/gui/Window.hpp b/include/cru/osx/gui/Window.hpp
index 1e790a65..6bb6b747 100644
--- a/include/cru/osx/gui/Window.hpp
+++ b/include/cru/osx/gui/Window.hpp
@@ -1,5 +1,6 @@
 #pragma once
 #include "Resource.hpp"
+#include "cru/platform/gui/Base.hpp"
 #include "cru/platform/gui/Window.hpp"
 
 #include <memory>
@@ -15,7 +16,8 @@ class OsxWindow : public OsxGuiResource, public INativeWindow {
   friend details::OsxWindowPrivate;
 
  public:
-  explicit OsxWindow(OsxUiApplication* ui_application);
+  OsxWindow(OsxUiApplication* ui_application, INativeWindow* parent,
+            bool frame);
 
   CRU_DELETE_COPY(OsxWindow)
   CRU_DELETE_MOVE(OsxWindow)
@@ -62,6 +64,9 @@ class OsxWindow : public OsxGuiResource, public INativeWindow {
   IInputMethodContext* GetInputMethodContext() override;
 
  private:
+  void CreateWindow();
+
+ private:
   std::unique_ptr<details::OsxWindowPrivate> p_;
 };
 }  // namespace cru::platform::gui::osx
diff --git a/include/cru/platform/GraphicsBase.hpp b/include/cru/platform/GraphicsBase.hpp
index e7201ec0..aee718a1 100644
--- a/include/cru/platform/GraphicsBase.hpp
+++ b/include/cru/platform/GraphicsBase.hpp
@@ -182,6 +182,11 @@ struct Rect final {
     return Point(left + width / 2.0f, top + height / 2.0f);
   }
 
+  constexpr void SetSize(const Size& size) {
+    width = size.width;
+    height = size.height;
+  }
+
   constexpr Size GetSize() const { return Size(width, height); }
 
   constexpr Rect Expand(const Thickness& thickness) const {
diff --git a/src/osx/gui/Window.mm b/src/osx/gui/Window.mm
index 1ee0299a..52cc3934 100644
--- a/src/osx/gui/Window.mm
+++ b/src/osx/gui/Window.mm
@@ -1,6 +1,9 @@
 #include "cru/osx/gui/Window.hpp"
 
 #include "cru/osx/gui/UiApplication.hpp"
+#include "cru/platform/gui/Base.hpp"
+
+#include <AppKit/NSWindow.h>
 
 namespace cru::platform::gui::osx {
 namespace details {
@@ -17,11 +20,107 @@ class OsxWindowPrivate {
 
  private:
   OsxWindow* osx_window_;
+
+  INativeWindow* parent_;
+
+  bool frame_;
+  Rect content_rect_;
+
+  NSWindow* window_;
 };
 }
 
-OsxWindow::OsxWindow(OsxUiApplication* ui_application)
-    : OsxGuiResource(ui_application), p_(new details::OsxWindowPrivate(this)) {}
+namespace {
+inline NSWindowStyleMask CalcWindowStyleMask(bool frame) {
+  return frame ? NSWindowStyleMaskTitled | NSWindowStyleMaskClosable |
+                     NSWindowStyleMaskMiniaturizable | NSWindowStyleMaskResizable
+               : NSWindowStyleMaskBorderless;
+}
+
+}
+
+OsxWindow::OsxWindow(OsxUiApplication* ui_application, INativeWindow* parent, bool frame)
+    : OsxGuiResource(ui_application), p_(new details::OsxWindowPrivate(this)) {
+  p_->parent_ = parent;
+
+  p_->frame_ = frame;
+  p_->content_rect_ = {100, 100, 400, 200};
+}
+
+OsxWindow::~OsxWindow() {
+  if (p_->window_) {
+    [p_->window_ close];
+  }
+}
+
+void OsxWindow::Close() {
+  if (p_->window_) {
+    [p_->window_ close];
+  }
+}
+
+INativeWindow* OsxWindow::GetParent() { return p_->parent_; }
 
-OsxWindow::~OsxWindow() {}
+bool OsxWindow::IsVisible() {
+  if (!p_->window_) return false;
+  return [p_->window_ isVisible];
+}
+
+void OsxWindow::SetVisible(bool is_visible) {
+  if (p_->window_) {
+    if (is_visible) {
+      [p_->window_ orderFront:p_->window_];
+    } else {
+      [p_->window_ orderOut:p_->window_];
+    }
+  } else {
+    if (is_visible) {
+      CreateWindow();
+    }
+  }
+}
+
+Size OsxWindow::GetClientSize() { return p_->content_rect_.GetSize(); }
+
+void OsxWindow::SetClientSize(const Size& size) {
+  if (p_->window_) {
+    [p_->window_ setContentSize:NSSize{size.width, size.height}];
+  } else {
+    p_->content_rect_.SetSize(size);
+  }
+}
+
+Rect OsxWindow::GetWindowRect() {
+  if (p_->window_) {
+    auto r = [p_->window_ frame];
+    return Rect(r.origin.x, r.origin.y, r.size.width, r.size.height);
+  } else {
+    NSRect rr{p_->content_rect_.left, p_->content_rect_.top, p_->content_rect_.width,
+              p_->content_rect_.height};
+    auto r = [NSWindow frameRectForContentRect:rr styleMask:CalcWindowStyleMask(p_->frame_)];
+    return Rect(r.origin.x, r.origin.y, r.size.width, r.size.height);
+  }
+}
+
+void OsxWindow::SetWindowRect(const Rect& rect) {
+  auto rr = NSRect{rect.left, rect.top, rect.width, rect.height};
+  if (p_->window_) {
+    [p_->window_ setFrame:rr display:false];
+  } else {
+    auto r = [NSWindow contentRectForFrameRect:rr styleMask:CalcWindowStyleMask(p_->frame_)];
+    p_->content_rect_ = Rect(r.origin.x, r.origin.y, r.size.width, r.size.height);
+  }
+}
+
+void OsxWindow::CreateWindow() {
+  NSRect content_rect{p_->content_rect_.left, p_->content_rect_.top, p_->content_rect_.width,
+                      p_->content_rect_.height};
+
+  NSWindowStyleMask style_mask = CalcWindowStyleMask(p_->frame_);
+
+  p_->window_ = [[NSWindow alloc] initWithContentRect:content_rect
+                                            styleMask:style_mask
+                                              backing:NSBackingStoreBuffered
+                                                defer:false];
+}
 }