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package se.cambio.openehr.view.util;

import java.awt.*;


public class ScreenUtil {

    private static int getScreenID(Component container) {
        int scrID = 1;
        GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
        GraphicsDevice[] gd = ge.getScreenDevices();
        for (int i = 0; i < gd.length; i++) {
            GraphicsConfiguration gc = gd[i].getDefaultConfiguration();
            Rectangle rect = gc.getBounds();
            if (rect.contains(container.getLocation())) {
                scrID = i + 1;
            }
        }
        return scrID;
    }

    public static Dimension getScreenDimension(Component container) {
        if (container != null) {
            Dimension dimension = new Dimension(0, 0);
            int scrID = getScreenID(container);
            if (scrID > 0) {
                GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
                DisplayMode mode = ge.getScreenDevices()[scrID - 1].getDisplayMode();
                dimension.setSize(mode.getWidth(), mode.getHeight());
            }
            return dimension;
        } else {
            return Toolkit.getDefaultToolkit().getScreenSize();
        }
    }

    public static Point getLocationOnCurrentScreen(final Component component) {
        if (component != null) {
            final Rectangle currentScreenBounds = component.getGraphicsConfiguration().getBounds();
            return new Point(currentScreenBounds.x, currentScreenBounds.y);
        } else {
            return new Point(0, 0);
        }
    }

    public static void centerComponentOnScreen(Component component, Component parent) {
        Dimension screenSize = getScreenDimension(parent);
        Dimension parentSize = null;
        Point parentPoint = null;
        if (parent != null) {
            parentSize = parent.getSize();
            parentPoint = parent.getLocation();
        } else {
            parentSize = new Dimension(0, 0);
            parentPoint = new Point(screenSize.width / 2, screenSize.height / 2);
        }
        int compWidth = component.getWidth();
        int compHeight = component.getHeight();
        int locx = parentPoint.x + (parentSize.width / 2) - (compWidth / 2);
        int locy = parentPoint.y + (parentSize.height / 2) - (compHeight / 2);
        component.setLocation(locx, locy);
    }
}