ToastAnimator.java

package io.github.asyncronous.toast.thread;

import io.github.asyncronous.toast.Toaster;
import io.github.asyncronous.toast.ui.ToastWindow;

import javax.swing.SwingWorker;
import javax.swing.UIManager;
import java.awt.Rectangle;

/**
 * The main Toaster animation class, controls the entire window - location, whether or not to display, etc...
 */
public final class ToastAnimator extends SwingWorker<Void, Void> {
    private final ToastWindow window;

    public ToastAnimator(ToastWindow window) {
        this.window = window;
    }

    @Override
    protected Void doInBackground() throws Exception {
        boolean fromBottom = true;
        Rectangle screenRect = (Rectangle) UIManager.get("Toaster.contBounds");

        int startY;
        int stopY;

        if (screenRect.y > 0) {
            fromBottom = false;
        }

        Toaster.MAX_TOASTER_IN_SCREEN = (screenRect.height / this.window.getHeight());
        int posX = screenRect.width - this.window.getWidth() - 1;
        this.window.setLocation(posX, screenRect.height);
        this.window.setVisible(true);

        if (fromBottom) {
            startY = screenRect.height;
            stopY = startY - this.window.getHeight() - 1;
            if (Toaster.CURRENT_TOASTER_NUMBER > 0) {
                stopY = stopY - (Toaster.MAX_TOASTERS % Toaster.MAX_TOASTER_IN_SCREEN * this.window.getHeight());
            } else {
                Toaster.MAX_TOASTERS = 0;
            }
        } else {
            startY = screenRect.y - this.window.getHeight();
            stopY = screenRect.y;

            if (Toaster.CURRENT_TOASTER_NUMBER > 0) {
                stopY = stopY + (Toaster.MAX_TOASTERS % Toaster.MAX_TOASTER_IN_SCREEN * this.window.getHeight());
            } else {
                Toaster.MAX_TOASTERS = 0;
            }
        }

        Toaster.CURRENT_TOASTER_NUMBER++;
        Toaster.MAX_TOASTERS++;
        this.moveVert(posX, startY, stopY);
        Thread.sleep((Integer) UIManager.get("Toaster.time"));
        this.moveVert(posX, stopY, startY);
        Toaster.CURRENT_TOASTER_NUMBER--;
        Thread.sleep(250);
        this.window.setVisible(false);
        this.window.dispose();

        return null;
    }

    private void moveVert(int posx, int fromY, int toY) throws Exception {
        this.window.setLocation(posx, fromY);
        if (toY < fromY) {
            for (int i = fromY; i > toY; i -= 20) {
                this.window.setLocation(posx, i);
                Thread.sleep(20);
            }
        } else {
            for (int i = fromY; i < toY; i += 20) {
                this.window.setLocation(posx, i);
                Thread.sleep(20);
            }
        }
        this.window.setLocation(posx, toY);
    }
}