cppfever / NanoCanvas

The Canvas writing in C++11 based on nanovg

NanoCanvas {#mainpage}

NanoCanvas is the HTML5 Canvas liked antialiased vector graphics rendering library writing in C++11 based on Mikko Mononen's NanoVG .

Feartures

• Easy to use , with HTML5 Canvas liked API

canvas.clearColor(Colors::DarkOliveGreen); //Clear canvas with color

// Draw a rounded rectangle
canvas.beginPath()
      .roundedRect(50,50,100,100,10)
      .fillStyle(Colors::Salmon)
      .fill();

// Draw styled text
TextStyle textStyle;
textStyle.size = 36.0f;
textStyle.color = Colors::White;
textStyle.face = font.face;
canvas.fillStyle(textStyle)
      .beginPath()
      .fillText("Hello Canvas",30,190);

• Hardware accelerated so it's fast

  Thanks for backend ports of NanoVG , now we can use NanoCanvas with OpenGL, OpenGL ES, BGFX and D3D.

Integrate to your projects

1. Add NanoVG code to your projects and add the folder where your nanovg.h file located to your include directory. Be sure #included "nanovg.h" works on your projects.

2. Add NanoCanvas code files under src folder in to your projects.

3. Create Canvas with NanoVG context For example,using OpenGL 3.x as the backend renderer.

NVGcontext * nvgCtx = nvgCreateGL3(NVG_ANTIALIAS | NVG_DEBUG |NVG_STENCIL_STROKES);
Canvas canvas(nvgCtx,wndWidth ,wndHeight);
if(canvas.valid()) {
    // Everything is OK
}

4 . Draw awesome graphics Draw graphics between begineFrame() and endFrame method.

// main render loop
while ( appRunning )
{
    canvas.begineFrame(wndWidth,wndHeight);
    // Draw awesome graphics here
    canvas.endFrame();
}

Why not takes NanoVG itself ?

You can use the backend renderer as your like. You have to do that by yourself. :)

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For more informations

Documemtations is avaliable.