Example usage for com.google.gwt.graphics.client Color LIGHT_GREY

Introduction

In this page you can find the example usage for com.google.gwt.graphics.client Color LIGHT_GREY.

Prototype

Color LIGHT_GREY

To view the source code for com.google.gwt.graphics.client Color LIGHT_GREY.

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Usage

From source file:com.google.speedtracer.client.view.MainGraph.java

License:Apache License

private void paintGraph(double coordDelta, double leftBound, double rightBound, double domainDelta,
        GraphUiProps graphUiProps, GraphModel model) {
    canvas.setStrokeStyle(graphUiProps.getStrokeColor());
    canvas.setFillStyle(graphUiProps.getGraphColor());

    double maxYValueInWindow = graphUiProps.getYAxisScaleCap();
    double yAdjustment = COORD_Y_HEIGHT / graphUiProps.getActiveMaxYAxisValue();

    canvas.setLineWidth(2);// ww w .jav  a 2  s . com

    // Redraw timeline
    canvas.beginPath();
    canvas.moveTo(0, COORD_Y_HEIGHT);

    for (int x = 0, p = getPlotPrecision(); x <= p; x++) {
        double xVal = x * coordDelta;
        double yVal = model.getRangeValue(leftBound + (domainDelta * x), domainDelta);

        // Log the max Y value drawn in this current window.
        // If we ever want a graph to plot negative Y values, we would need to
        // override this paint method anyways, but we should be aware that we
        // would want to log the Abs value here instead.
        maxYValueInWindow = (yVal > maxYValueInWindow) ? yVal : maxYValueInWindow;

        canvas.lineTo(xVal, COORD_Y_HEIGHT - (yVal * yAdjustment));
    }

    canvas.lineTo(COORD_X_WIDTH, COORD_Y_HEIGHT);
    canvas.closePath();

    canvas.fill();

    // Draw Start and End regions
    double now = getTimeLine().getModel().getMostRecentDomainValue();
    double timeToCoordConversion = getCoordsPerTime();

    if (now < rightBound) {
        double end = (now - leftBound) * timeToCoordConversion;
        canvas.setFillStyle(Color.LIGHT_GREY);
        canvas.fillRect(end, 0, COORD_X_WIDTH - end, COORD_Y_HEIGHT);
        if (now > leftBound) {
            canvas.setFillStyle(Color.GREEN);
            canvas.fillRect(end, 0, 2, COORD_Y_HEIGHT);
        }
    }

    if (leftBound < 0) {
        canvas.setFillStyle(Color.RED);

        canvas.fillRect((-leftBound * timeToCoordConversion) - 4, 0, 2, COORD_Y_HEIGHT);
    }

    // Remember the active max value for this graph
    graphUiProps.setActiveMaxYAxisValue(maxYValueInWindow);
}

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