Example usage for org.jfree.util ShapeUtilities getPointInRectangle

Introduction

In this page you can find the example usage for org.jfree.util ShapeUtilities getPointInRectangle.

Prototype

public static Point2D getPointInRectangle(double x, double y, final Rectangle2D area) 

Source Link

Document

Returns a point based on (x, y) but constrained to be within the bounds of a given rectangle.

Usage

From source file:de.hs.mannheim.modUro.controller.diagram.fx.interaction.ZoomHandlerFX.java

/**
 * Handles a mouse pressed event by recording the initial mouse pointer
 * location.//w  ww. ja  v  a  2  s .c  o m
 * 
 * @param canvas  the JavaFX canvas (<code>null</code> not permitted).
 * @param e  the mouse event (<code>null</code> not permitted).
 */
@Override
public void handleMousePressed(ChartCanvas canvas, MouseEvent e) {
    Point2D pt = new Point2D.Double(e.getX(), e.getY());
    Rectangle2D dataArea = canvas.findDataArea(pt);
    if (dataArea != null) {
        this.startPoint = ShapeUtilities.getPointInRectangle(e.getX(), e.getY(), dataArea);
    } else {
        this.startPoint = null;
        canvas.clearLiveHandler();
    }
}

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From source file:gda.plots.SimplePlot.java

/**
 * Recalculates the rectangle which should be magnified.
 * /* w  w  w .  j a  va  2  s .  c  o m*/
 * @param e
 *            the MouseEvent which triggered the recalculation
 */
private void recalculateMagnifyRectangle(MouseEvent e) {
    if (magnifyWidth == 0 || magnifyHeight == 0)
        return;

    Rectangle2D scaledDataArea = getScreenDataArea();

    double widthToUse;
    double heightToUse;
    double xToUse;
    double yToUse;

    // If magnifyWidth is positive then e.getX() is
    // the end of the rectangle so the start is (e.getX() - magnifyWidth ).
    // If magnifyWidth is negative then e.getX() is the start of a
    // rectangle with the opposite sign width. Similarly for y.

    if (magnifyWidth > 0) {
        xToUse = e.getX() - magnifyWidth;
        widthToUse = magnifyWidth;
    } else {
        xToUse = e.getX();
        widthToUse = -1.0 * magnifyWidth;
    }

    if (magnifyHeight > 0) {
        yToUse = e.getY() - magnifyHeight;
        heightToUse = magnifyHeight;
    } else {
        yToUse = e.getY();
        heightToUse = -1.0 * magnifyHeight;
    }

    // xToUse and yToUse now specify the top left of the rectangle. In order
    // to keep the magnified rectangle inside the data area the start point
    // must be inside a rectangle which is the scaledDataArea reduced in
    // width
    // and height by the width and height of the magnifyRectangle.

    Point2D revisedStartPoint = ShapeUtilities.getPointInRectangle(xToUse, yToUse,
            new Rectangle2D.Double(scaledDataArea.getMinX(), scaledDataArea.getMinY(),
                    scaledDataArea.getWidth() - magnifyWidth, scaledDataArea.getHeight() - magnifyHeight));
    magnifyRectangle = new Rectangle2D.Double(revisedStartPoint.getX(), revisedStartPoint.getY(), widthToUse,
            heightToUse);
}

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