Example usage for com.google.gwt.dom.client CanvasElement getHeight

Introduction

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

Prototype

public final native int getHeight() ;

Source Link

Document

Gets the height of the canvas.

Usage

From source file:com.badlogic.gdx.backends.gwt.GwtInput.java

License:Apache License

/** Kindly borrowed from PlayN. **/
protected int getRelativeY(NativeEvent e, CanvasElement target) {
    float yScaleRatio = target.getHeight() * 1f / target.getClientHeight(); // Correct for canvas CSS scaling
    return Math.round(yScaleRatio * (e.getClientY() - target.getAbsoluteTop() + target.getScrollTop()
            + target.getOwnerDocument().getScrollTop()));
}

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From source file:com.badlogic.gdx.backends.gwt.GwtInput.java

License:Apache License

protected int getRelativeY(Touch touch, CanvasElement target) {
    float yScaleRatio = target.getHeight() * 1f / target.getClientHeight(); // Correct for canvas CSS scaling
    return Math.round(yScaleRatio * touch.getRelativeY(target));
}

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From source file:com.badlogic.gdx.graphics.Pixmap.java

License:Apache License

/** Draws an area form another Pixmap to this Pixmap.
 * //w w w.  ja  va 2s .  co  m
 * @param pixmap The other Pixmap
 * @param x The target x-coordinate (top left corner)
 * @param y The target y-coordinate (top left corner) */
public void drawPixmap(Pixmap pixmap, int x, int y) {
    CanvasElement image = pixmap.getCanvasElement();
    image(image, 0, 0, image.getWidth(), image.getHeight(), x, y, image.getWidth(), image.getHeight());
}

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From source file:playn.html.HtmlGLContext.java

License:Apache License

HtmlGLContext(HtmlPlatform platform, WebGLRenderingContext gl, CanvasElement canvas) {
    super(platform, new HtmlGL20(gl), 1, canvas.getWidth(), canvas.getHeight(),
            HtmlUrlParameters.checkGLErrors);
    this.glc = gl;
    // try basic GL operations to detect failure cases early
    tryBasicGLCalls();//from w  w  w  .j a  v  a  2  s  .  c  o m
    init();
    glc.pixelStorei(UNPACK_PREMULTIPLY_ALPHA_WEBGL, ONE);
}

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