Implement some Renderer getters

SDL2pp/Renderer.cc

@@ -227,4 +227,50 @@ bool Renderer::TargetSupported() {
 	return SDL_RenderTargetSupported(renderer_) == SDL_TRUE;
 }
 
+Rect Renderer::GetClipRect() const {
+	SDL_Rect rect;
+	SDL_RenderGetClipRect(renderer_, &rect);
+	return rect;
+}
+
+Point Renderer::GetLogicalSize() const {
+	int w, h;
+	SDL_RenderGetLogicalSize(renderer_, &w, &h);
+	return Point(w, h);
+}
+
+int Renderer::GetLogicalWidth() const {
+	int w;
+	SDL_RenderGetLogicalSize(renderer_, &w, nullptr);
+	return w;
+}
+
+int Renderer::GetLogicalHeight() const {
+	int h;
+	SDL_RenderGetLogicalSize(renderer_, nullptr, &h);
+	return h;
+}
+
+void Renderer::GetScale(float& scalex, float& scaley) const {
+	SDL_RenderGetScale(renderer_, &scalex, &scaley);
+}
+
+float Renderer::GetXScale() const {
+	float scalex;
+	SDL_RenderGetScale(renderer_, &scalex, nullptr);
+	return scalex;
+}
+
+float Renderer::GetYScale() const {
+	float scaley;
+	SDL_RenderGetScale(renderer_, nullptr, &scaley);
+	return scaley;
+}
+
+Rect Renderer::GetViewport() const {
+	SDL_Rect rect;
+	SDL_RenderGetViewport(renderer_, &rect);
+	return rect;
+}
+
 }

SDL2pp/Renderer.hh

@@ -539,6 +539,99 @@ public:
 	///
 	////////////////////////////////////////////////////////////
 	bool TargetSupported();
+
+	////////////////////////////////////////////////////////////
+	/// \brief Get the clip rectangle for the current target
+	///
+	/// \returns Rect representing current clipping area
+	///
+	/// \see http://wiki.libsdl.org/SDL_RenderGetClipRect
+	///
+	////////////////////////////////////////////////////////////
+	Rect GetClipRect() const;
+
+	////////////////////////////////////////////////////////////
+	/// \brief Get device independent resolution for rendering
+	///
+	/// \returns Point representing logical resolution
+	///
+	/// \see http://wiki.libsdl.org/SDL_RenderGetClipRect
+	///
+	/// \note If this function is called on an Renderer who never had
+	///       its logical size set by SetLogicalSize(), this function
+	///       returns {0, 0}
+	///
+	////////////////////////////////////////////////////////////
+	Point GetLogicalSize() const;
+
+	////////////////////////////////////////////////////////////
+	/// \brief Get device independent width resolution for rendering
+	///
+	/// \returns Logical resolution width
+	///
+	/// \see http://wiki.libsdl.org/SDL_RenderGetClipRect
+	///
+	/// \note If this function is called on an Renderer who never had
+	///       its logical size set by SetLogicalSize(), this function
+	///       returns 0
+	///
+	////////////////////////////////////////////////////////////
+	int GetLogicalWidth() const;
+
+	////////////////////////////////////////////////////////////
+	/// \brief Get device independent width resolution for rendering
+	///
+	/// \returns Logical resolution height
+	///
+	/// \see http://wiki.libsdl.org/SDL_RenderGetClipRect
+	///
+	/// \note If this function is called on an Renderer who never had
+	///       its logical size set by SetLogicalSize(), this function
+	///       returns 0
+	///
+	////////////////////////////////////////////////////////////
+	int GetLogicalHeight() const;
+
+	////////////////////////////////////////////////////////////
+	/// \brief Get the drawing scale for the current target
+	///
+	/// \param[out] Variable to be filled with the horizontal scaling factor
+	/// \param[out] Variable to be filled with the vertical scaling factor
+	///
+	/// \see http://wiki.libsdl.org/SDL_RenderGetScale
+	///
+	////////////////////////////////////////////////////////////
+	void GetScale(float& scalex, float& scaley) const;
+
+	////////////////////////////////////////////////////////////
+	/// \brief Get the drawing scale for the current target
+	///
+	/// \returns Horizontal scaling factor
+	///
+	/// \see http://wiki.libsdl.org/SDL_RenderGetScale
+	///
+	////////////////////////////////////////////////////////////
+	float GetXScale() const;
+
+	////////////////////////////////////////////////////////////
+	/// \brief Get the drawing scale for the current target
+	///
+	/// \returns Vertical scaling factor
+	///
+	/// \see http://wiki.libsdl.org/SDL_RenderGetScale
+	///
+	////////////////////////////////////////////////////////////
+	float GetYScale() const;
+
+	////////////////////////////////////////////////////////////
+	/// \brief Get the drawing area for the current target
+	///
+	/// \returns Rect representing current drawing area
+	///
+	/// \see http://wiki.libsdl.org/SDL_RenderGetViewport
+	///
+	////////////////////////////////////////////////////////////
+	Rect GetViewport() const;
 };
 
 }