Example usage for com.google.gwt.canvas.dom.client ImageData getHeight

Introduction

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

Prototype

public final native int getHeight() ;

Source Link

Document

Returns the height of this image data object.

Usage

From source file:com.google.gwt.sample.userwatcher.client.FileUploaderWidget_v2.java

private void drawThumbToScreen(Image image) {

    int size = 75;

    int width = image.getWidth();
    int height = image.getHeight();

    double scaleToRatio = 0.50D; // TODO oops, getting image loading problem. event loading, fix later...

    ImageData imageDataForThumb = ImageUtils.scaleImage(image, scaleToRatio);

    // for debugging
    Canvas canvasTmp = Canvas.createIfSupported();
    canvasTmp.setCoordinateSpaceHeight((int) imageDataForThumb.getHeight());
    canvasTmp.setCoordinateSpaceWidth((int) imageDataForThumb.getWidth());
    Context2d context = canvasTmp.getContext2d();
    context.putImageData(imageDataForThumb, 0, 0);
    pThumb.add(canvasTmp);/*  w w  w.j  a  va  2 s. c om*/

    canvasTmp.addStyleName("test2");
}

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From source file:com.google.gwt.sample.userwatcher.client.ImageUtils.java

/**
 * for debugging//from  w ww . java2 s. c  o m
 * 
 * @param imageData
 */
public static void addImageToScreen(ImageData imageData) {

    Canvas canvasTmp = Canvas.createIfSupported();
    canvasTmp.setCoordinateSpaceHeight((int) imageData.getHeight() + 10);
    canvasTmp.setCoordinateSpaceWidth((int) imageData.getWidth() + 10);
    Context2d context = canvasTmp.getContext2d();

    context.putImageData(imageData, 0, 0);

    //flexTable.setWidget(r, c, canvasTmp);
    RootPanel.get().add(canvasTmp);
}

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From source file:com.google.gwt.sample.userwatcher.client.ImageUtils.java

public static ImageData cropImage(ImageData imageData, double sx, double sy, double sw, double sh) {

    Canvas canvasTmp = Canvas.createIfSupported();
    canvasTmp.setStyleName("mainCanvas");
    Context2d context = canvasTmp.getContext2d();

    canvasTmp.setCoordinateSpaceHeight((int) imageData.getHeight() + 10);
    canvasTmp.setCoordinateSpaceWidth((int) imageData.getWidth() + 10);

    // draw image to canvas
    context.putImageData(imageData, 0, 0);

    // get image data
    //imageData = context.getImageData(0, 0, imageData.getWidth(), imageData.getHeight());
    ImageData newImageData = context.getImageData(sx, sy, sw, sh);

    return newImageData;
}

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From source file:uk.co.threeonefour.ifictionary.engine.client.graphics.FourWayImageDataQueueFloodFill.java

License:Apache License

public FourWayImageDataQueueFloodFill(ImageData imageData, int x, int y, Colour srcColour, Colour tgtColour) {

    this.imageData = imageData;
    this.width = imageData.getWidth();
    this.height = imageData.getHeight();
    this.mark = new boolean[this.width][this.height];
    this.srcColour = srcColour;
    this.tgtColour = tgtColour;

    this.queue = new LinkedList<Point>();
    queue.add(new Point(x, y));
}

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