Example usage for com.google.gwt.canvas.dom.client Context2d getCanvas

Introduction

In this page you can find the example usage for com.google.gwt.canvas.dom.client Context2d getCanvas.

Prototype

public final native CanvasElement getCanvas() ;

Source Link

Document

Gets this context's canvas.

Usage

From source file:anagram.client.Lens.java

License:Apache License

public void draw(Context2d back, Context2d front) {
    front.drawImage(back.getCanvas(), 0, 0);

    if (!GWT.isScript()) {
        // in devmode this effect is slow so we disable it here
    } else {/*from w  ww  . j  a  v a 2 s . c o  m*/
        ImageData frontData = front.getImageData((int) (pos.x - radius), (int) (pos.y - radius), 2 * radius,
                2 * radius);
        CanvasPixelArray frontPixels = frontData.getData();
        ImageData backData = back.getImageData((int) (pos.x - radius), (int) (pos.y - radius), 2 * radius,
                2 * radius);
        CanvasPixelArray backPixels = backData.getData();
        int srcIdx, dstIdx;
        for (int i = lensArray.length - 1; i >= 0; i--) {
            dstIdx = 4 * lensArray[i][0];
            srcIdx = 4 * lensArray[i][1];
            frontPixels.set(dstIdx + 0, backPixels.get(srcIdx + 0));
            frontPixels.set(dstIdx + 1, backPixels.get(srcIdx + 1));
            frontPixels.set(dstIdx + 2, backPixels.get(srcIdx + 2));
        }
        front.putImageData(frontData, (int) (pos.x - radius), (int) (pos.y - radius));
    }

    front.setStrokeStyle(strokeStyle);
    front.beginPath();
    front.arc(pos.x, pos.y, radius, 0, Math.PI * 2, true);
    front.closePath();
    front.stroke();
}

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From source file:edu.ycp.cs320.fokemon_webApp.client.LogoGroup.java

License:Open Source License

public void draw(Context2d back, Context2d front) {
    front.drawImage(back.getCanvas(), 0, 0);
}

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From source file:uk.co.threeonefour.ifictionary.engine.client.pages.level9game.Level9GameActivity.java

License:Apache License

protected void startGame() {

    Context2d context = view.getCanvas().getContext2d();
    int w = context.getCanvas().getWidth();
    int h = context.getCanvas().getHeight();
    context.setFillStyle("#" + Colour.WHITE.toHexString());
    context.fillRect(0, 0, w, h);/*  w w w.ja v  a 2 s  . c o m*/

    icyVm.startGame();
    processVmOutput();

    view.getTextBox().setFocus(true);
}

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From source file:web.diva.client.somclust.view.MaxTreeZoomImage.java

public void buffer(Context2d back, Context2d front) {
    front.beginPath();/*from  w  ww  .  j av a 2s.  com*/
    front.clearRect(0, 0, width, height);
    front.drawImage(back.getCanvas(), 0, 0);
}

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