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This is a backport of OpenJFX 8 to run on Java 7.
The newest version!
/*
* Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.javafx.tk.quantum;
import javafx.animation.Animation.Status;
import javafx.animation.FadeTransition;
import javafx.animation.PauseTransition;
import javafx.animation.SequentialTransition;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Rectangle2D;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import javafx.scene.text.Font;
import javafx.scene.text.Text;
import javafx.scene.text.TextAlignment;
import javafx.util.Duration;
import com.sun.javafx.sg.prism.NGNode;
import java.util.Locale;
import java.util.ResourceBundle;
public class OverlayWarning {
private static final Locale LOCALE = Locale.getDefault();
private static final ResourceBundle RESOURCES =
ResourceBundle.getBundle(OverlayWarning.class.getPackage().getName() +
".QuantumMessagesBundle", LOCALE);
public static String localize(String msg) {
return RESOURCES.getString(msg);
}
private static final float PAD = 40f;
private static final float RECTW = 600f;
private static final float RECTH = 100f;
private static final float ARC = 20f;
private static final int FONTSIZE = 24;
private ViewScene view;
private Group sceneRoot;
private SequentialTransition overlayTransition;
private AbstractPainter painter;
private boolean warningTransition;
public OverlayWarning(final ViewScene vs) {
view = vs;
sceneRoot = createOverlayGroup();
painter = view.getPainter();
// TODO - needs to be thread-safe - see RT-13813
Scene.impl_setAllowPGAccess(true);
painter.setOverlayRoot((NGNode)sceneRoot.impl_getPGNode());
Scene.impl_setAllowPGAccess(false);
PauseTransition pause = new PauseTransition(Duration.millis(4000));
FadeTransition fade = new FadeTransition(Duration.millis(1000), sceneRoot);
fade.setFromValue(1);
fade.setToValue(0);
overlayTransition = new SequentialTransition();
overlayTransition.getChildren().add(pause);
overlayTransition.getChildren().add(fade);
overlayTransition.setOnFinished(new EventHandler() {
@Override public void handle(ActionEvent event) {
painter.setRenderOverlay(false);
view.entireSceneNeedsRepaint();
warningTransition = false;
}
});
}
protected ViewScene getView() {
return view;
}
protected final void setView(ViewScene vs) {
if (painter != null) {
painter.setRenderOverlay(false);
view.entireSceneNeedsRepaint();
}
view = vs;
painter = vs.getPainter();
// TODO - needs to be thread-safe - see RT-13813
Scene.impl_setAllowPGAccess(true);
painter.setOverlayRoot((NGNode)sceneRoot.impl_getPGNode());
Scene.impl_setAllowPGAccess(false);
painter.setRenderOverlay(true);
view.entireSceneNeedsRepaint();
overlayTransition.setOnFinished(new EventHandler() {
@Override public void handle(ActionEvent event) {
painter.setRenderOverlay(false);
view.entireSceneNeedsRepaint();
warningTransition = false;
}
});
}
protected void warn() {
warningTransition = true;
painter.setRenderOverlay(true);
overlayTransition.play();
}
protected void cancel() {
if (overlayTransition != null &&
overlayTransition.getStatus() == Status.RUNNING) {
overlayTransition.stop();
painter.setRenderOverlay(false);
view.entireSceneNeedsRepaint();
warningTransition = false;
}
}
protected boolean inWarningTransition() {
return warningTransition;
}
private Text text;
private Rectangle background;
private Group root;
private Group createOverlayGroup() {
final Scene scene = new Scene(new Group());
final Font font = new Font(Font.getDefault().getFamily(), FONTSIZE);
final Text text = new Text();
final Rectangle2D screenBounds = javafx.stage.Screen.getPrimary().getBounds();
scene.setFill(null);
String TEXT_CSS =
"-fx-effect: dropshadow(two-pass-box, rgba(0,0,0,0.75), 3, 0.0, 0, 2);";
text.setText(localize("OverlayWarningESC"));
text.setStroke(Color.WHITE);
text.setFill(Color.WHITE);
text.setFont(font);
text.setWrappingWidth(RECTW - PAD - PAD);
text.setStyle(TEXT_CSS);
text.setTextAlignment(TextAlignment.CENTER);
Rectangle background = createBackground(text, screenBounds);
Group root = (Group)scene.getRoot();
root.getChildren().add(background);
root.getChildren().add(text);
Scene.impl_setAllowPGAccess(true);
text.impl_updatePG();
background.impl_updatePG();
root.impl_updatePG();
Scene.impl_setAllowPGAccess(false);
return root;
}
private Rectangle createBackground(Text text, Rectangle2D screen) {
Rectangle rectangle = new Rectangle();
double textW = text.getLayoutBounds().getWidth();
double textH = text.getLayoutBounds().getHeight();
double rectX = (screen.getWidth() - RECTW) / 2.0;
double rectY = (screen.getHeight() / 2.0);
rectangle.setWidth(RECTW);
rectangle.setHeight(RECTH);
rectangle.setX(rectX);
rectangle.setY(rectY - RECTH);
rectangle.setArcWidth(ARC);
rectangle.setArcHeight(ARC);
rectangle.setFill(Color.gray(0.0, 0.6));
text.setX(rectX + ((RECTW - textW) / 2.0));
text.setY(rectY - (RECTH / 2.0) + ((textH - text.getBaselineOffset()) / 2.0));
return rectangle;
}
}