[deploy] add CanvasRenderContext
This commit is contained in:
Nomango
parent
767f619a8f
commit
cdadb695e4
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@ -34,9 +34,6 @@ public:
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canvas_ = MakePtr<Canvas>(size);
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ctx_ = canvas_->GetContext2D();
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fill_brush_ = MakePtr<Brush>(Color::White);
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line_brush_ = MakePtr<Brush>(Color::White);
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b2Draw::SetFlags(b2Draw::e_shapeBit | b2Draw::e_jointBit | b2Draw::e_jointBit | b2Draw::e_centerOfMassBit);
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}
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@ -58,14 +55,12 @@ public:
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void SetFillColor(const b2Color& color)
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{
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fill_brush_->SetColor(reinterpret_cast<const Color&>(color));
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ctx_->SetCurrentBrush(fill_brush_);
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ctx_->SetFillColor(reinterpret_cast<const Color&>(color));
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}
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void SetLineColor(const b2Color& color)
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{
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line_brush_->SetColor(reinterpret_cast<const Color&>(color));
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ctx_->SetCurrentBrush(line_brush_);
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ctx_->SetStrokeColor(reinterpret_cast<const Color&>(color));
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}
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void DrawPolygon(const b2Vec2* vertices, int32 vertexCount, const b2Color& color) override
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@ -83,16 +78,15 @@ public:
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void DrawSolidPolygon(const b2Vec2* vertices, int32 vertexCount, const b2Color& color) override
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{
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ShapeMaker maker;
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maker.BeginPath(global::WorldToLocal(vertices[0]));
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for (int32 i = 1; i < vertexCount; ++i)
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Vector<Point> local_vertices;
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for (int32 i = 0; i < vertexCount; ++i)
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{
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maker.AddLine(global::WorldToLocal(vertices[i]));
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local_vertices.push_back(global::WorldToLocal(vertices[i]));
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}
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maker.EndPath(true);
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ShapePtr polygon = Shape::CreatePolygon(local_vertices);
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SetFillColor(color);
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ctx_->FillShape(*maker.GetShape());
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ctx_->FillShape(polygon);
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}
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void DrawCircle(const b2Vec2& center, float32 radius, const b2Color& color) override
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@ -140,9 +134,7 @@ public:
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private:
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CanvasPtr canvas_;
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RenderContextPtr ctx_;
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BrushPtr fill_brush_;
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BrushPtr line_brush_;
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CanvasRenderContextPtr ctx_;
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};
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class DestructionListener : public b2DestructionListener
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@ -23,36 +23,39 @@
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namespace kiwano
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{
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Canvas::Canvas()
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{
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RecreateContext(nullptr);
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}
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Canvas::Canvas(const Size& size)
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{
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try
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{
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ResizeAndClear(size);
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}
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catch (Exception& e)
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{
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Fail(String("Canvas::ResizeAndClear failed: ") + e.what());
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}
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}
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RenderContextPtr Canvas::GetContext2D() const
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CanvasRenderContextPtr Canvas::GetContext2D() const
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{
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return render_ctx_;
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}
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void Canvas::OnRender(RenderContext& ctx)
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{
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if (texture_cached_)
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{
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ctx.DrawTexture(*texture_cached_, nullptr, &GetBounds());
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}
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CanvasRenderContextPtr ctx = new CanvasRenderContext(render_ctx_);
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return ctx;
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}
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void Canvas::ResizeAndClear(Size size)
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{
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RecreateContext(&size);
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}
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void Canvas::RecreateContext(Size* size)
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{
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texture_cached_ = MakePtr<Texture>();
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render_ctx_ = RenderContext::Create(*texture_cached_, size);
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if (size)
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{
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render_ctx_ = RenderContext::Create(*texture_cached_, *size);
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}
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else
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{
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render_ctx_ = RenderContext::Create(*texture_cached_);
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}
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if (render_ctx_)
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{
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@ -69,4 +72,25 @@ TexturePtr Canvas::ExportToTexture() const
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return texture_cached_;
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}
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void Canvas::OnRender(RenderContext& ctx)
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{
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if (texture_cached_)
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{
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ctx.DrawTexture(*texture_cached_, nullptr, &GetBounds());
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}
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}
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CanvasRenderContext::CanvasRenderContext(RenderContextPtr ctx)
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: ctx_(ctx)
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{
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if (!ctx_)
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{
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Fail("CanvasRenderContext constructor failed");
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}
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}
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CanvasRenderContext::~CanvasRenderContext()
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{
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}
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} // namespace kiwano
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@ -28,6 +28,7 @@ namespace kiwano
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{
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KGE_DECLARE_SMART_PTR(Canvas);
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KGE_DECLARE_SMART_PTR(CanvasRenderContext);
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/**
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* \addtogroup Actors
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@ -42,6 +43,8 @@ KGE_DECLARE_SMART_PTR(Canvas);
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class KGE_API Canvas : public Actor
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{
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public:
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Canvas();
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/// \~chinese
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/// @brief 创建画布
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/// @param size 画布大小
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@ -49,7 +52,7 @@ public:
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/// \~chinese
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/// @brief 获取2D绘图上下文
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RenderContextPtr GetContext2D() const;
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CanvasRenderContextPtr GetContext2D() const;
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/// \~chinese
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/// @brief 清空画布大小并重设画布大小
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@ -62,11 +65,465 @@ public:
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void OnRender(RenderContext& ctx) override;
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private:
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void RecreateContext(Size* size);
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private:
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TexturePtr texture_cached_;
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RenderContextPtr render_ctx_;
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};
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/// \~chinese
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/// @brief 画布渲染上下文
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class KGE_API CanvasRenderContext : public ObjectBase
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{
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public:
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/// \~chinese
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/// @brief 开始渲染
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void BeginDraw();
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/// \~chinese
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/// @brief 结束渲染
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void EndDraw();
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/// \~chinese
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/// @brief 画形状轮廓
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/// @param shape 形状
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void DrawShape(ShapePtr shape);
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/// \~chinese
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/// @brief 画线段
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/// @param begin 线段起点
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/// @param end 线段终点
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void DrawLine(const Point& begin, const Point& end);
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/// \~chinese
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/// @brief 画圆形边框
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/// @param center 圆形原点
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/// @param radius 圆形半径
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void DrawCircle(const Point& center, float radius);
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/// \~chinese
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/// @brief 画椭圆形边框
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/// @param center 椭圆原点
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/// @param radius 椭圆半径
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void DrawEllipse(const Point& center, const Vec2& radius);
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/// \~chinese
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/// @brief 画矩形边框
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/// @param rect 矩形
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void DrawRect(const Rect& rect);
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/// \~chinese
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/// @brief 画圆角矩形边框
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/// @param rect 矩形
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/// @param radius 矩形圆角半径
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void DrawRoundedRect(const Rect& rect, const Vec2& radius);
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/// \~chinese
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/// @brief 填充形状
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/// @param shape 形状
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void FillShape(ShapePtr shape);
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/// \~chinese
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/// @brief 填充圆形
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/// @param center 圆形原点
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/// @param radius 圆形半径
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void FillCircle(const Point& center, float radius);
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/// \~chinese
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/// @brief 填充椭圆形
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/// @param center 椭圆原点
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/// @param radius 椭圆半径
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void FillEllipse(const Point& center, const Vec2& radius);
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/// \~chinese
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/// @brief 填充矩形
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/// @param rect 矩形
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void FillRect(const Rect& rect);
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/// \~chinese
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/// @brief 填充圆角矩形
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/// @param rect 矩形
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/// @param radius 矩形圆角半径
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void FillRoundedRect(const Rect& rect, const Vec2& radius);
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/// \~chinese
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/// @brief 绘制图像帧
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/// @param frame 图像帧
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/// @param pos 绘制图像的位置
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void DrawFrame(FramePtr frame, const Point& pos);
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/// \~chinese
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/// @brief 绘制图像帧
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/// @param frame 图像帧
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/// @param pos 绘制图像的位置
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/// @param size 渲染的图像大小
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void DrawFrame(FramePtr frame, const Point& pos, const Size& size);
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/// \~chinese
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/// @brief 绘制文字布局
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/// @param text 文字
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/// @param style 文字样式
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/// @param point 绘制文字的位置
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void DrawTextLayout(const String& text, const TextStyle& style, const Point& point);
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/// \~chinese
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/// @brief 绘制文字布局
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/// @param layout 文字布局
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/// @param point 绘制布局的位置
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void DrawTextLayout(TextLayoutPtr layout, const Point& point);
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/// \~chinese
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/// @brief 清空画布
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void Clear();
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/// \~chinese
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/// @brief 清空画布
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/// @param clear_color 清空颜色
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void Clear(const Color& clear_color);
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/// \~chinese
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/// @brief 设置填充颜色
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/// @param color 填充颜色
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void SetFillColor(const Color& color);
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/// \~chinese
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/// @brief 设置填充画刷
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/// @param[in] brush 填充画刷
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void SetFillBrush(BrushPtr brush);
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/// \~chinese
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/// @brief 获取填充画刷
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BrushPtr GetFillBrush() const;
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/// \~chinese
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/// @brief 设置轮廓颜色
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/// @param color 轮廓颜色
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void SetStrokeColor(const Color& color);
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/// \~chinese
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/// @brief 设置轮廓画刷
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/// @param[in] brush 轮廓画刷
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void SetStrokeBrush(BrushPtr brush);
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/// \~chinese
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/// @brief 获取轮廓画刷
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BrushPtr GetStrokeBrush() const;
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/// \~chinese
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/// @brief 设置轮廓样式
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/// @param stroke_style 轮廓样式
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void SetStrokeStyle(StrokeStylePtr stroke_style);
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/// \~chinese
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/// @brief 获取轮廓样式
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StrokeStylePtr GetStrokeStyle() const;
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/// \~chinese
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/// @brief 添加一个裁剪区域
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/// @param clip_rect 裁剪矩形
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void PushClipRect(const Rect& clip_rect);
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/// \~chinese
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/// @brief 删除最近添加的裁剪区域
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void PopClipRect();
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/// \~chinese
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/// @brief 添加一个图层
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/// @param layer 图层
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void PushLayer(LayerPtr layer);
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/// \~chinese
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/// @brief 删除最近添加的图层
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void PopLayer();
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/// \~chinese
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/// @brief 获取画布大小
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Size GetSize() const;
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/// \~chinese
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/// @brief 设置渲染上下文的二维变换矩阵
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void SetTransform(const Matrix3x2& matrix);
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/// \~chinese
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/// @brief 设置抗锯齿模式
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void SetAntialiasMode(bool enabled);
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/// \~chinese
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/// @brief 设置文字抗锯齿模式
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void SetTextAntialiasMode(TextAntialiasMode mode);
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virtual ~CanvasRenderContext();
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private:
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friend class Canvas;
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CanvasRenderContext(RenderContextPtr ctx);
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private:
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RenderContextPtr ctx_;
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BrushPtr fill_brush_;
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BrushPtr stroke_brush_;
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StrokeStylePtr stroke_style_;
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};
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/** @} */
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inline void CanvasRenderContext::BeginDraw()
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{
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KGE_ASSERT(ctx_);
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ctx_->BeginDraw();
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}
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inline void CanvasRenderContext::EndDraw()
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{
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KGE_ASSERT(ctx_);
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ctx_->EndDraw();
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}
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inline void CanvasRenderContext::DrawShape(ShapePtr shape)
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{
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KGE_ASSERT(ctx_);
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if (shape)
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{
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ctx_->SetCurrentBrush(stroke_brush_);
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ctx_->SetCurrentStrokeStyle(stroke_style_);
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ctx_->DrawShape(*shape);
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}
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}
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inline void CanvasRenderContext::DrawLine(const Point& begin, const Point& end)
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{
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KGE_ASSERT(ctx_);
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ctx_->SetCurrentBrush(stroke_brush_);
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ctx_->SetCurrentStrokeStyle(stroke_style_);
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ctx_->DrawLine(begin, end);
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}
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inline void CanvasRenderContext::DrawCircle(const Point& center, float radius)
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{
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KGE_ASSERT(ctx_);
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ctx_->SetCurrentBrush(stroke_brush_);
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ctx_->SetCurrentStrokeStyle(stroke_style_);
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ctx_->DrawCircle(center, radius);
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}
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inline void CanvasRenderContext::DrawEllipse(const Point& center, const Vec2& radius)
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{
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KGE_ASSERT(ctx_);
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ctx_->SetCurrentBrush(stroke_brush_);
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ctx_->SetCurrentStrokeStyle(stroke_style_);
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ctx_->DrawEllipse(center, radius);
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}
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inline void CanvasRenderContext::DrawRect(const Rect& rect)
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{
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KGE_ASSERT(ctx_);
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ctx_->SetCurrentBrush(stroke_brush_);
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ctx_->SetCurrentStrokeStyle(stroke_style_);
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ctx_->DrawRectangle(rect);
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}
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inline void CanvasRenderContext::DrawRoundedRect(const Rect& rect, const Vec2& radius)
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{
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KGE_ASSERT(ctx_);
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ctx_->SetCurrentBrush(stroke_brush_);
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ctx_->SetCurrentStrokeStyle(stroke_style_);
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ctx_->DrawRoundedRectangle(rect, radius);
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}
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inline void CanvasRenderContext::FillShape(ShapePtr shape)
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{
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KGE_ASSERT(ctx_);
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if (shape)
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{
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ctx_->SetCurrentBrush(fill_brush_);
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ctx_->FillShape(*shape);
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}
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}
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inline void CanvasRenderContext::FillCircle(const Point& center, float radius)
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{
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KGE_ASSERT(ctx_);
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ctx_->SetCurrentBrush(fill_brush_);
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ctx_->FillCircle(center, radius);
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}
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inline void CanvasRenderContext::FillEllipse(const Point& center, const Vec2& radius)
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{
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KGE_ASSERT(ctx_);
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ctx_->SetCurrentBrush(fill_brush_);
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ctx_->FillEllipse(center, radius);
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}
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inline void CanvasRenderContext::FillRect(const Rect& rect)
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{
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KGE_ASSERT(ctx_);
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ctx_->SetCurrentBrush(fill_brush_);
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ctx_->FillRectangle(rect);
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}
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inline void CanvasRenderContext::FillRoundedRect(const Rect& rect, const Vec2& radius)
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{
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KGE_ASSERT(ctx_);
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ctx_->SetCurrentBrush(fill_brush_);
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ctx_->FillRoundedRectangle(rect, radius);
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}
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inline void CanvasRenderContext::DrawFrame(FramePtr frame, const Point& pos)
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{
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if (frame)
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{
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Size frame_size = frame->GetSize();
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this->DrawFrame(frame, pos, frame_size);
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}
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}
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inline void CanvasRenderContext::DrawFrame(FramePtr frame, const Point& pos, const Size& size)
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{
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KGE_ASSERT(ctx_);
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if (frame)
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{
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ctx_->DrawFrame(frame, Rect(pos, size));
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}
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}
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inline void CanvasRenderContext::DrawTextLayout(const String& text, const TextStyle& style, const Point& point)
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{
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TextLayoutPtr layout = MakePtr<TextLayout>(text, style);
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this->DrawTextLayout(layout, point);
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}
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inline void CanvasRenderContext::DrawTextLayout(TextLayoutPtr layout, const Point& point)
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{
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KGE_ASSERT(ctx_);
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if (layout)
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{
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ctx_->DrawTextLayout(*layout, point);
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}
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}
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inline void CanvasRenderContext::Clear()
|
||||
{
|
||||
KGE_ASSERT(ctx_);
|
||||
ctx_->Clear();
|
||||
}
|
||||
|
||||
inline void CanvasRenderContext::Clear(const Color& clear_color)
|
||||
{
|
||||
KGE_ASSERT(ctx_);
|
||||
ctx_->Clear(clear_color);
|
||||
}
|
||||
|
||||
inline void CanvasRenderContext::SetFillColor(const Color& color)
|
||||
{
|
||||
if (!fill_brush_)
|
||||
{
|
||||
fill_brush_ = MakePtr<Brush>();
|
||||
}
|
||||
fill_brush_->SetColor(color);
|
||||
}
|
||||
|
||||
inline void CanvasRenderContext::SetFillBrush(BrushPtr brush)
|
||||
{
|
||||
fill_brush_ = brush;
|
||||
}
|
||||
|
||||
inline BrushPtr CanvasRenderContext::GetFillBrush() const
|
||||
{
|
||||
return fill_brush_;
|
||||
}
|
||||
|
||||
inline void CanvasRenderContext::SetStrokeBrush(BrushPtr brush)
|
||||
{
|
||||
stroke_brush_ = brush;
|
||||
}
|
||||
|
||||
inline void CanvasRenderContext::SetStrokeColor(const Color& color)
|
||||
{
|
||||
if (!stroke_brush_)
|
||||
{
|
||||
stroke_brush_ = MakePtr<Brush>();
|
||||
}
|
||||
stroke_brush_->SetColor(color);
|
||||
}
|
||||
|
||||
inline BrushPtr CanvasRenderContext::GetStrokeBrush() const
|
||||
{
|
||||
return stroke_brush_;
|
||||
}
|
||||
|
||||
inline void CanvasRenderContext::SetStrokeStyle(StrokeStylePtr stroke_style)
|
||||
{
|
||||
stroke_style_ = stroke_style;
|
||||
}
|
||||
|
||||
inline StrokeStylePtr CanvasRenderContext::GetStrokeStyle() const
|
||||
{
|
||||
return stroke_style_;
|
||||
}
|
||||
|
||||
inline void CanvasRenderContext::PushClipRect(const Rect& clip_rect)
|
||||
{
|
||||
KGE_ASSERT(ctx_);
|
||||
ctx_->PushClipRect(clip_rect);
|
||||
}
|
||||
|
||||
inline void CanvasRenderContext::PopClipRect()
|
||||
{
|
||||
KGE_ASSERT(ctx_);
|
||||
ctx_->PopClipRect();
|
||||
}
|
||||
|
||||
inline void CanvasRenderContext::PushLayer(LayerPtr layer)
|
||||
{
|
||||
KGE_ASSERT(ctx_);
|
||||
if (layer)
|
||||
{
|
||||
ctx_->PushLayer(*layer);
|
||||
}
|
||||
}
|
||||
|
||||
inline void CanvasRenderContext::PopLayer()
|
||||
{
|
||||
KGE_ASSERT(ctx_);
|
||||
ctx_->PopLayer();
|
||||
}
|
||||
|
||||
inline Size CanvasRenderContext::GetSize() const
|
||||
{
|
||||
KGE_ASSERT(ctx_);
|
||||
return ctx_->GetSize();
|
||||
}
|
||||
|
||||
inline void CanvasRenderContext::SetTransform(const Matrix3x2& matrix)
|
||||
{
|
||||
KGE_ASSERT(ctx_);
|
||||
ctx_->SetTransform(matrix);
|
||||
}
|
||||
|
||||
inline void CanvasRenderContext::SetAntialiasMode(bool enabled)
|
||||
{
|
||||
KGE_ASSERT(ctx_);
|
||||
ctx_->SetAntialiasMode(enabled);
|
||||
}
|
||||
|
||||
inline void CanvasRenderContext::SetTextAntialiasMode(TextAntialiasMode mode)
|
||||
{
|
||||
KGE_ASSERT(ctx_);
|
||||
ctx_->SetTextAntialiasMode(mode);
|
||||
}
|
||||
|
||||
} // namespace kiwano
|
||||
|
|
|
|||
Loading…
Reference in New Issue