Gets the screen bounds that contains the rect. - Java Swing

Java examples for Swing:Screen

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Description

Gets the screen bounds that contains the rect.

Demo Code


import java.awt.Component;
import java.awt.Dimension;
import java.awt.GraphicsConfiguration;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.Insets;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.awt.geom.Area;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JApplet;

public class Main{
    /**/*from ww w.j a v a2  s .co  m*/
     * List all all screen bounds NOT considering any insets (e.g. taskbars)
     */
    private static final Rectangle[] SCREENS;
    /**
     * List all all screen insets (e.g. taskbars)
     */
    private static Insets[] INSETS;
    /**
     * Gets the screen bounds that contains the rect. The screen bounds consider the screen insets if any.
     *
     * @param rect           the rect of the component.
     * @param considerInsets if consider the insets. The insets is for thing like Windows Task Bar.
     * @return the screen bounds that contains the rect.
     */
    public static Rectangle getContainingScreenBounds(final Rectangle rect,
            final boolean considerInsets) {
        // check if rect is total on screen
        //        if (SCREEN_AREA.contains(rect)) return SCREEN_AREA;

        // see if the top left is on any of the screens
        Rectangle containgScreen = null;
        Insets insets = null;
        Point rectPos = rect.getLocation();
        for (int i = 0; i < SCREENS.length; i++) {
            Rectangle screenBounds = SCREENS[i];
            if (screenBounds.contains(rectPos)) {
                containgScreen = screenBounds;
                insets = INSETS[i];
                break;
            }
        }
        // if not see if rect partial on any screen
        for (int i = 0; i < SCREENS.length; i++) {
            Rectangle screenBounds = SCREENS[i];
            if (screenBounds.intersects(rect)) {
                containgScreen = screenBounds;
                insets = INSETS[i];
                break;
            }
        }

        // fall back to the first screen
        if (containgScreen == null) {
            containgScreen = SCREENS[0];
            insets = INSETS[0];
        }

        Rectangle bounds = new Rectangle(containgScreen);
        if (considerInsets) {
            bounds.x += insets.left;
            bounds.y += insets.top;
            bounds.width -= insets.left + insets.right;
            bounds.height -= insets.top + insets.bottom;
        }
        return bounds;
    }
}

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