Example usage for com.google.gwt.dom.client Document createCanvasElement

Introduction

In this page you can find the example usage for com.google.gwt.dom.client Document createCanvasElement.

Prototype

public CanvasElement createCanvasElement() 

Source Link

Usage

From source file:forplay.html.HtmlGraphics.java

License:Apache License

protected HtmlGraphics() {
    Document doc = Document.get();

    dummyCanvas = doc.createCanvasElement();
    dummyCtx = dummyCanvas.getContext2d();

    rootElement = doc.getElementById("forplay-root");
    if (rootElement == null) {
        rootElement = doc.getBody();//from  www . j av  a 2s. co  m
    } else {
        // clear the contents of the "forplay-root" element, if present
        rootElement.setInnerHTML("");
    }
}

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From source file:playn.html.HtmlGraphics.java

License:Apache License

protected HtmlGraphics() {
    Document doc = Document.get();

    dummyCanvas = doc.createCanvasElement();
    dummyCtx = dummyCanvas.getContext2d();

    rootElement = doc.getElementById("playn-root");
    if (rootElement == null) {
        rootElement = doc.getBody();/*w  w w .j  a  va2  s.c  o m*/
    } else {
        // clear the contents of the "playn-root" element, if present
        rootElement.setInnerHTML("");
    }

    // create a hidden element used to measure font heights
    measureElement = doc.createDivElement();
    measureElement.getStyle().setVisibility(Style.Visibility.HIDDEN);
    measureElement.getStyle().setPosition(Style.Position.ABSOLUTE);
    measureElement.getStyle().setTop(-500, Unit.PX);
    measureElement.getStyle().setOverflow(Style.Overflow.VISIBLE);
    rootElement.appendChild(measureElement);
}

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