From 8323a245ee3d245da185d0f9dc8fd4610572e15e Mon Sep 17 00:00:00 2001
From: Nomango <569629550@qq.com>
Date: Thu, 23 Aug 2018 12:25:31 +0800
Subject: [PATCH] =?UTF-8?q?=E5=AE=8C=E5=96=84Canvas?=
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---
 core/Common/Color.cpp |  8 ++++
 core/Node/Canvas.cpp  | 98 +++++++++++++++++++++++++++++++++++++++----
 core/e2dcommon.h      |  4 ++
 core/e2dnode.h        | 63 ++++++++++++++++++++--------
 4 files changed, 147 insertions(+), 26 deletions(-)

diff --git a/core/Common/Color.cpp b/core/Common/Color.cpp
index d857ec7c..d5690073 100644
--- a/core/Common/Color.cpp
+++ b/core/Common/Color.cpp
@@ -42,6 +42,14 @@ e2d::Color::Color(UINT rgb, float alpha)
 	_init(rgb, alpha);
 }
 
+e2d::Color::Color(const D2D1_COLOR_F& color)
+	: r(color.r)
+	, g(color.g)
+	, b(color.b)
+	, a(color.a)
+{
+}
+
 e2d::Color::operator D2D1_COLOR_F() const
 {
 	return std::move(D2D1::ColorF(r, g, b, a));
diff --git a/core/Node/Canvas.cpp b/core/Node/Canvas.cpp
index 4d381560..574133a8 100644
--- a/core/Node/Canvas.cpp
+++ b/core/Node/Canvas.cpp
@@ -1,12 +1,13 @@
 #include "..\e2dnode.h"
 
-e2d::Canvas::Canvas()
+e2d::Canvas::Canvas(float width, float height)
 	: _renderer(nullptr)
 	, _renderTarget(nullptr)
 	, _fillBrush(nullptr)
 	, _lineBrush(nullptr)
 	, _strokeStyle(nullptr)
 	, _strokeWidth(1.0f)
+	, _stroke(Stroke::Miter)
 {
 	_renderer = Game::getInstance()->getRenderer();
 	_renderTarget = _renderer->getRenderTarget();
@@ -25,10 +26,11 @@ e2d::Canvas::Canvas()
 			&_lineBrush
 		)
 	);
-
-	_strokeStyle = _renderer->getMiterStrokeStyle();
-
+	
 	this->setClipEnabled(true);
+	this->setWidth(width);
+	this->setHeight(height);
+	this->setStrokeStyle(_stroke);
 }
 
 e2d::Canvas::~Canvas()
@@ -69,6 +71,26 @@ void e2d::Canvas::setStrokeStyle(Stroke strokeStyle)
 	}
 }
 
+const e2d::Color & e2d::Canvas::getLineColor() const
+{
+	return Color(_lineBrush->GetColor());
+}
+
+const e2d::Color & e2d::Canvas::getFillColor() const
+{
+	return Color(_fillBrush->GetColor());
+}
+
+float e2d::Canvas::getStrokeWidth() const
+{
+	return _strokeWidth;
+}
+
+e2d::Stroke e2d::Canvas::getStrokeStyle() const
+{
+	return _stroke;
+}
+
 void e2d::Canvas::drawLine(const Point & begin, const Point & end)
 {
 	_renderTarget->DrawLine(
@@ -80,6 +102,40 @@ void e2d::Canvas::drawLine(const Point & begin, const Point & end)
 	);
 }
 
+void e2d::Canvas::drawCircle(const Point & center, float radius)
+{
+	_renderTarget->DrawEllipse(
+		D2D1::Ellipse(
+			D2D1::Point2F(
+				center.x,
+				center.y
+			),
+			radius,
+			radius
+		),
+		_lineBrush,
+		_strokeWidth,
+		_strokeStyle
+	);
+}
+
+void e2d::Canvas::drawEllipse(const Point & center, float radiusX, float radiusY)
+{
+	_renderTarget->DrawEllipse(
+		D2D1::Ellipse(
+			D2D1::Point2F(
+				center.x,
+				center.y
+			),
+			radiusX,
+			radiusY
+		),
+		_lineBrush,
+		_strokeWidth,
+		_strokeStyle
+	);
+}
+
 void e2d::Canvas::drawRect(const Rect & rect)
 {
 	_renderTarget->DrawRectangle(
@@ -114,6 +170,36 @@ void e2d::Canvas::drawRoundedRect(const Rect & rect, float radiusX, float radius
 	);
 }
 
+void e2d::Canvas::fillCircle(const Point & center, float radius)
+{
+	_renderTarget->FillEllipse(
+		D2D1::Ellipse(
+			D2D1::Point2F(
+				center.x,
+				center.y
+			),
+			radius,
+			radius
+		),
+		_fillBrush
+	);
+}
+
+void e2d::Canvas::fillEllipse(const Point & center, float radiusX, float radiusY)
+{
+	_renderTarget->FillEllipse(
+		D2D1::Ellipse(
+			D2D1::Point2F(
+				center.x,
+				center.y
+			),
+			radiusX,
+			radiusY
+		),
+		_fillBrush
+	);
+}
+
 void e2d::Canvas::fillRect(const Rect & rect)
 {
 	_renderTarget->FillRectangle(
@@ -143,7 +229,3 @@ void e2d::Canvas::fillRoundedRect(const Rect & rect, float radiusX, float radius
 		_fillBrush
 	);
 }
-
-void e2d::Canvas::visit(Game * game)
-{
-}
diff --git a/core/e2dcommon.h b/core/e2dcommon.h
index 97158da1..249846b4 100644
--- a/core/e2dcommon.h
+++ b/core/e2dcommon.h
@@ -310,6 +310,10 @@ public:
 		float alpha
 	);
 
+	Color(
+		const D2D1_COLOR_F& color
+	);
+
 	E2D_OP_EXPLICIT operator D2D1_COLOR_F() const;
 
 public:
diff --git a/core/e2dnode.h b/core/e2dnode.h
index 73b9e591..67227ff3 100644
--- a/core/e2dnode.h
+++ b/core/e2dnode.h
@@ -1098,10 +1098,14 @@ protected:
 
 // 画布
 class Canvas :
-	public Node
+	public Node,
+	public Drawable
 {
 public:
-	Canvas();
+	Canvas(
+		float width,
+		float height
+	);
 
 	virtual ~Canvas();
 
@@ -1125,12 +1129,37 @@ public:
 		Stroke strokeStyle
 	);
 
+	// 获取线条颜色
+	const Color& getLineColor() const;
+
+	// 获取填充颜色
+	const Color& getFillColor() const;
+
+	// 获取线条宽度
+	float getStrokeWidth() const;
+
+	// 获取线条相交样式
+	Stroke getStrokeStyle() const;
+
 	// 画直线
 	void drawLine(
 		const Point& begin,
 		const Point& end
 	);
 
+	// 画圆形边框
+	void drawCircle(
+		const Point& center,
+		float radius
+	);
+
+	// 画椭圆形边框
+	void drawEllipse(
+		const Point& center,
+		float radiusX,
+		float radiusY
+	);
+
 	// 画矩形边框
 	void drawRect(
 		const Rect& rect
@@ -1143,6 +1172,19 @@ public:
 		float radiusY
 	);
 
+	// 填充圆形
+	void fillCircle(
+		const Point& center,
+		float radius
+	);
+
+	// 填充椭圆形
+	void fillEllipse(
+		const Point& center,
+		float radiusX,
+		float radiusY
+	);
+
 	// 填充矩形
 	void fillRect(
 		const Rect& rect
@@ -1155,27 +1197,12 @@ public:
 		float radiusY
 	);
 
-	// 开启路径
-	void beginPath();
-
-	// 添加点
-	void addPoint(
-		const Point& p
-	);
-
-	// 结束路径
-	void endPath();
-
-	// 遍历节点
-	virtual void visit(
-		Game * game
-	) override;
-
 protected:
 	E2D_DISABLE_COPY(Canvas);
 
 protected:
 	float _strokeWidth;
+	Stroke _stroke;
 	Renderer * _renderer;
 	ID2D1RenderTarget * _renderTarget;
 	ID2D1SolidColorBrush * _fillBrush;