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114 lines
2.5 KiB
114 lines
2.5 KiB
package mightypork.rogue.screens;
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import mightypork.gamecore.gui.components.painters.QuadPainter;
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import mightypork.gamecore.gui.components.painters.TextPainter;
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import mightypork.gamecore.gui.screens.Overlay;
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import mightypork.gamecore.resources.Res;
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import mightypork.utils.Support;
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import mightypork.utils.math.AlignX;
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import mightypork.utils.math.animation.Easing;
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import mightypork.utils.math.animation.NumAnimated;
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import mightypork.utils.math.color.pal.PAL16;
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import mightypork.utils.math.color.pal.RGB;
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import mightypork.utils.math.constraints.num.Num;
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import mightypork.utils.math.constraints.rect.Rect;
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import mightypork.utils.math.timing.TimedTask;
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import mightypork.utils.string.StringProvider;
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/**
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* Overlay with blue background and loading-info text, that accompanies an async
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* task.
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*
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* @author Ondřej Hruška (MightyPork)
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*/
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public class LoadingOverlay extends Overlay {
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private static final double T_IN = 0.5;
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private static final double T_OUT = 1;
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private final NumAnimated alpha = new NumAnimated(0);
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private final StringProvider msgStrProv = new StringProvider() {
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@Override
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public String getString()
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{
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return msg == null ? "" : msg;
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}
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};
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private boolean busy;
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private String msg;
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private Runnable task;
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private final TimedTask tt = new TimedTask() {
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@Override
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public void run()
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{
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Support.runAsThread(new Runnable() {
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@Override
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public void run()
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{
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task.run();
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alpha.setEasing(Easing.SINE_OUT);
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alpha.fadeOut(T_OUT);
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busy = false;
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}
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});
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}
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};
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public LoadingOverlay() {
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final QuadPainter qp = new QuadPainter(PAL16.SEABLUE);
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qp.setRect(root);
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root.add(qp);
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updated.add(alpha);
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updated.add(tt);
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Rect textRect = root.shrink(Num.ZERO, root.height().perc(48));
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textRect = textRect.moveY(root.height().perc(-10));
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final TextPainter tp = new TextPainter(Res.getFont("thick"), AlignX.CENTER, RGB.WHITE, msgStrProv);
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tp.setRect(textRect);
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tp.setShadow(RGB.BLACK_60, tp.height().mul(1 / 8D).toVectXY());
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root.add(tp);
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setAlpha(alpha);
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}
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@Override
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public int getZIndex()
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{
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return 10001; // not too high, so app can put something on top
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}
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/**
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* Show for a task
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*
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* @param message task description
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* @param task task
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*/
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public void show(String message, Runnable task)
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{
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if (busy) throw new IllegalStateException("Loader is busy with another task.");
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this.msg = message;
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this.task = task;
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this.busy = true;
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alpha.setEasing(Easing.SINE_IN);
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alpha.fadeIn(T_IN);
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tt.start(T_IN);
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}
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}
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