Add color fade

PortabilityLayer/PLCore.cpp

@@ -503,12 +503,6 @@ void GetMouse(Window *window, Point *point)
 	point->v = relativePos.m_y;
 }
 
-Boolean Button()
-{
-	PL_NotYetImplemented();
-	return false;
-}
-
 Boolean StillDown()
 {
 	return PortabilityLayer::InputManager::GetInstance()->GetKeys()->m_mouse.Get(GpMouseButtons::kLeft);

PortabilityLayer/WindowManager.cpp

@@ -110,6 +110,13 @@ namespace PortabilityLayer
 		static const RGBAColor kLightColor;
 	};
 
+	struct WindowEffects
+	{
+		WindowEffects();
+
+		float m_desaturationLevel;
+	};
+
 	class WindowImpl final : public Window
 	{
 	public:
@@ -140,7 +147,12 @@ namespace PortabilityLayer
 		void SetTitle(const PLPasStr &str);
 		const PascalStr<255> &GetTitle() const;
 
+		WindowEffects &GetEffects();
+		const WindowEffects &GetEffects() const;
+
 	private:
+		WindowEffects m_effects;
+
 		WindowImpl *m_windowAbove;
 		WindowImpl *m_windowBelow;
 
@@ -175,6 +187,8 @@ namespace PortabilityLayer
 		void FlickerWindowIn(Window *window, int32_t velocity) override;
 		void FlickerWindowOut(Window *window, int32_t velocity) override;
 
+		void SetWindowDesaturation(Window *window, float desaturationLevel) override;
+
 		void SetResizeInProgress(Window *window, const PortabilityLayer::Vec2i &size) override;
 		void ClearResizeInProgress() override;
 
@@ -786,6 +800,12 @@ namespace PortabilityLayer
 		surface->FillRect(Rect::Create(rect.top, rect.right - 4, rect.bottom, rect.right - 2), midColor);
 	}
 
+	//---------------------------------------------------------------------------
+	WindowEffects::WindowEffects()
+		: m_desaturationLevel(0.0f)
+	{
+	}
+
 	//---------------------------------------------------------------------------
 	WindowImpl::WindowImpl()
 		: m_windowAbove(nullptr)
@@ -974,6 +994,18 @@ namespace PortabilityLayer
 		return m_title;
 	}
 
+	WindowEffects &WindowImpl::GetEffects()
+	{
+		return m_effects;
+	}
+
+	const WindowEffects &WindowImpl::GetEffects() const
+	{
+		return m_effects;
+	}
+
+
+
 	WindowManagerImpl::WindowManagerImpl()
 		: m_windowStackTop(nullptr)
 		, m_windowStackBottom(nullptr)
@@ -1318,6 +1350,12 @@ namespace PortabilityLayer
 		m_flickerWindow = nullptr;
 	}
 
+
+	void WindowManagerImpl::SetWindowDesaturation(Window *window, float desaturationLevel)
+	{
+		static_cast<WindowImpl*>(window)->GetEffects().m_desaturationLevel = desaturationLevel;
+	}
+
 	void WindowManagerImpl::SetResizeInProgress(Window *window, const PortabilityLayer::Vec2i &size)
 	{
 		ResolveCachingColor blackColor = StdColors::Black();
@@ -1500,6 +1538,8 @@ namespace PortabilityLayer
 		if (m_exclusiveWindow != nullptr && m_exclusiveWindow != window)
 			effects.m_darken = true;
 
+		effects.m_desaturation = window->GetEffects().m_desaturationLevel;
+
 		bool hasFlicker = (m_flickerWindow == window);
 
 		DrawSurface &graf = *window->GetDrawSurface();

PortabilityLayer/WindowManager.h

@@ -41,6 +41,8 @@ namespace PortabilityLayer
 		virtual void FlickerWindowIn(Window *window, int32_t velocity) = 0;
 		virtual void FlickerWindowOut(Window *window, int32_t velocity) = 0;
 
+		virtual void SetWindowDesaturation(Window *window, float desaturationLevel) = 0;
+
 		virtual void SetResizeInProgress(Window *window, const PortabilityLayer::Vec2i &size) = 0;
 		virtual void ClearResizeInProgress() = 0;