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/ohos5.0/docs/zh-cn/application-dev/reference/apis-arkui/arkui-ts/
H A Dts-components-offscreencanvas.md1 # OffscreenCanvas chapter
3 OffscreenCanvas组件用于自定义绘制图形。
41 OffscreenCanvas支持以下属性：
57 private offCanvas: OffscreenCanvas = new OffscreenCanvas(200, 300)
93 private offCanvas: OffscreenCanvas = new OffscreenCanvas(200, 300)
126 从OffscreenCanvas组件中最近渲染的图像创建一个ImageBitmap对象。
149 private offCanvas: OffscreenCanvas = new OffscreenCanvas(300, 500)
182 返回OffscreenCanvas组件的绘图上下文。
209 private offscreenCanvas: OffscreenCanvas = new OffscreenCanvas(600, 800)
253 ## OffscreenCanvas支持并发线程绘制
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H A Dts-offscreencanvasrenderingcontext2d.md74 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
105 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
139 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
173 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
205 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
240 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
278 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
317 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
356 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
392 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
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/ohos5.0/docs/en/application-dev/reference/apis-arkui/arkui-js/
H A Djs-components-canvas-offscreencanvas.md1 # OffscreenCanvas chapter
8 **OffscreenCanvas** defines a canvas object that can be rendered off the screen.
15 | width | number | Width of the **OffscreenCanvas** object.|
16 | height | number | Height of the **OffscreenCanvas** object.|
26 Obtains the **OffscreenCanvas** context. This API returns a 2D drawing object.
39 …awing object, which can be used to draw rectangles, images, and texts, on the **OffscreenCanvas**.|
75 Creates an **ImageBitmap** object on the most recently rendered image of the **OffscreenCanvas**.
81 | [ImageBitmap](js-components-canvas-imagebitmap.md) | Pixel data rendered on the **OffscreenCanvas…
98 var offscreen = new OffscreenCanvas(500,500);
H A Djs-offscreencanvasrenderingcontext2d.md8 …vasRenderingContext2D** to draw rectangles, images, and texts on an [OffscreenCanvas](js-component…
32 var offscreen = new OffscreenCanvas(360, 500);
136 var offscreen = new OffscreenCanvas(500,500);
210 var offscreen = new OffscreenCanvas(500,500);
270 var offscreen = new OffscreenCanvas(500,500);
H A Djs-components-canvas-imagebitmap.md8 …mponents-canvas-offscreencanvas.md#transfertoimagebitmap) method of [OffscreenCanvas](js-component…
/ohos5.0/docs/en/application-dev/reference/apis-arkui/arkui-ts/
H A Dts-components-offscreencanvas.md1 # OffscreenCanvas chapter
3 **OffscreenCanvas** provides an offscreen canvas for drawing.
17 OffscreenCanvas(width: number, height: number, unit?: LengthMetricsUnit)
57 private offCanvas: OffscreenCanvas = new OffscreenCanvas(200, 300)
93 private offCanvas: OffscreenCanvas = new OffscreenCanvas(200, 300)
149 private offCanvas: OffscreenCanvas = new OffscreenCanvas(300, 500)
209 private offscreenCanvas: OffscreenCanvas = new OffscreenCanvas(600, 800)
263 > After an **OffscreenCanvas** object is passed to a thread through **postMessage**, it cannot be p…
287 let offCanvas = new OffscreenCanvas(600, 800)
305 After the main thread sends the **OffscreenCanvas** instance through **postMessage**, the worker th…
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H A Dts-offscreencanvasrenderingcontext2d.md74 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
105 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
139 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
173 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
205 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
240 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
278 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
317 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
356 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
392 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
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/ohos5.0/docs/zh-cn/release-notes/changelogs/OpenHarmony_4.1.6.5/
H A Dchangelogs-arkui.md268 ## cl.arkui.6 OffscreenCanvas类声明式继承错误删除
276 OffscreenCanvas类声明时父类关系继承错误会导致DevEco Studio错误联想出非OffscreenCanvas本身的方法和属性。
280 该变更为兼容性变更，变更后OffscreenCanvas类的方法和属性在DevEco studio中可正确联想，先前因OffscreenCanvas类声明时父类继承错误导致的非OffscreenCa…
292 OffscreenCanvas
296 DevEco Studio中OffscreenCanvas代码编辑联想功能，不涉及适配。
/ohos5.0/foundation/arkui/ace_engine/test/mock/core/pipeline/
H A Dmock_interface.h30 class OffscreenCanvas : public AceType {
31 DECLARE_ACE_TYPE(OffscreenCanvas, AceType);
/ohos5.0/docs/zh-cn/application-dev/ui/
H A Dui-js-components-offscreencanvas.md3 使用OffscreenCanvas在离屏Canvas画布组件上进行绘制，绘制对象可以是矩形、文本、图片等。 离屏，即GPU在当前缓冲区以外新开辟的一个缓冲区。 具体请参考[OffscreenCanv…
5 以下示例创建了一个OffscreenCanvas画布，再在画布上创建一个getContext2d对象，并设置filter属性改变图片样式。
63 this.offscreen = new OffscreenCanvas(600, 500);
154 let offscreen = new OffscreenCanvas(500,500);
173 let offscreen = new OffscreenCanvas(500,500);
H A Darkts-drawing-customization-on-canvas.md57 …//用来创建OffscreenCanvas对象，width为离屏画布的宽度，height为离屏画布的高度。通过在canvas中调用OffscreenCanvasRenderingContext2D…
58 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
216 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
/ohos5.0/foundation/arkui/ace_engine/frameworks/core/components/custom_paint/
H A Drender_custom_paint.h29 class RenderOffscreenCanvas : public OffscreenCanvas {
30 DECLARE_ACE_TYPE(RenderOffscreenCanvas, OffscreenCanvas);
32 …static RefPtr<OffscreenCanvas> Create(const WeakPtr<PipelineBase>& context, int32_t width, int32_t…
67 virtual void TransferFromImageBitmap(const RefPtr<OffscreenCanvas>& offscreenCanvas) = 0;
68 virtual void DrawBitmapMesh(const RefPtr<OffscreenCanvas>& offscreenCanvas,
H A Drender_offscreen_canvas_creator.cpp23 RefPtr<OffscreenCanvas> RenderOffscreenCanvas::Create( in Create()
H A Dcustom_paint_component.h151 void TransferFromImageBitmap(const RefPtr<OffscreenCanvas>& offscreenCanvas);
152 void DrawBitmapMesh(const RefPtr<OffscreenCanvas>& offscreenCanvas,
H A Doffscreen_canvas.h26 class OffscreenCanvas : public virtual AceType {
27 DECLARE_ACE_TYPE(OffscreenCanvas, AceType);
H A Drosen_render_custom_paint.h51 void TransferFromImageBitmap(const RefPtr<OffscreenCanvas>& offscreenCanvas) override;
52 void DrawBitmapMesh(const RefPtr<OffscreenCanvas>& offscreenCanvas,
/ohos5.0/docs/zh-cn/application-dev/reference/apis-arkui/arkui-js/
H A Djs-offscreencanvasrenderingcontext2d.md7 使用OffscreenCanvasRenderingContext2D在[OffscreenCanvas对象](js-components-canvas-offscreencanvas.md)上进行…
31 var offscreen = new OffscreenCanvas(360, 500);
135 var offscreen = new OffscreenCanvas(500,500);
209 var offscreen = new OffscreenCanvas(500,500);
269 var offscreen = new OffscreenCanvas(500,500);
H A Djs-components-canvas-offscreencanvas.md1 # OffscreenCanvas对象
97 var offscreen = new OffscreenCanvas(500,500);
H A Djs-components-canvas-imagebitmap.md7 ImageBitmap对象由[OffscreenCanvas对象](js-components-canvas-offscreencanvas.md)的[transferToImageBitmap()…
/ohos5.0/docs/en/application-dev/ui/
H A Dui-js-components-offscreencanvas.md63 this.offscreen = new OffscreenCanvas(600, 500);
154 let offscreen = new OffscreenCanvas(500,500);
173 let offscreen = new OffscreenCanvas(500,500);
H A Darkts-drawing-customization-on-canvas.md57 …// Create an OffscreenCanvas object. width indicates the width of the offscreen canvas, and height…
58 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
216 private offCanvas: OffscreenCanvas = new OffscreenCanvas(600, 600)
/ohos5.0/foundation/arkui/ace_engine/frameworks/bridge/declarative_frontend/jsview/models/canvas/
H A Doffscreen_canvas_rendering_context_2d_model_impl.h23 class OffscreenCanvas; variable
108 RefPtr<OffscreenCanvas> pattern_;
H A Dcanvas_rendering_context_2d_model_impl.cpp448 auto offscreenPattern = AceType::DynamicCast<OffscreenCanvas>(bitmapMeshInfo.offscreenPattern); in DrawBitmapMesh()
528 auto offscreenCanvas = AceType::DynamicCast<OffscreenCanvas>(offscreenCPattern); in SetTransferFromImageBitmap()
H A Doffscreen_canvas_rendering_context_2d_model_impl.cpp34 pattern_ = AceType::DynamicCast<OffscreenCanvas>(pattern); in SetPattern()
447 auto offscreenPattern = AceType::DynamicCast<OffscreenCanvas>(bitmapMeshInfo.offscreenPattern); in DrawBitmapMesh()
/ohos5.0/docs/en/release-notes/changelogs/OpenHarmony_4.1.6.5/
H A Dchangelogs-arkui.md268 ## cl.arkui.6 Removal of Incorrect Inheritance from OffscreenCanvas Class Declaration
276 …OffscreenCanvas** class declaration, the parent class incorrect. As a result, DevEco Studio incorr…
280 …atible change. After the change, the methods and attributes of the **OffscreenCanvas** class can b…
292 OffscreenCanvas

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