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Medusa is a JavaFX 8 library containing gauges and clocks
/*
* Copyright (c) 2016 by Gerrit Grunwald
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package eu.hansolo.medusa.skins;
import eu.hansolo.medusa.Fonts;
import eu.hansolo.medusa.Gauge;
import eu.hansolo.medusa.Section;
import javafx.beans.InvalidationListener;
import javafx.geometry.Insets;
import javafx.geometry.Orientation;
import javafx.scene.layout.Background;
import javafx.scene.layout.BackgroundFill;
import javafx.scene.layout.Border;
import javafx.scene.layout.BorderStroke;
import javafx.scene.layout.BorderStrokeStyle;
import javafx.scene.layout.BorderWidths;
import javafx.scene.layout.CornerRadii;
import javafx.scene.layout.Pane;
import javafx.scene.paint.Color;
import javafx.scene.paint.CycleMethod;
import javafx.scene.paint.LinearGradient;
import javafx.scene.paint.Stop;
import javafx.scene.shape.ClosePath;
import javafx.scene.shape.CubicCurveTo;
import javafx.scene.shape.FillRule;
import javafx.scene.shape.LineTo;
import javafx.scene.shape.MoveTo;
import javafx.scene.shape.Path;
import javafx.scene.text.Text;
import java.util.List;
import java.util.Locale;
/**
* Created by hansolo on 25.01.16.
*/
public class BatterySkin extends GaugeSkinBase {
private static final double PREFERRED_WIDTH = 160;
private static final double PREFERRED_HEIGHT = 160;
private static final double MINIMUM_WIDTH = 50;
private static final double MINIMUM_HEIGHT = 50;
private static final double MAXIMUM_WIDTH = 1024;
private static final double MAXIMUM_HEIGHT = 1024;
private Orientation orientation;
private double size;
private Pane pane;
private Path batteryBackground;
private Path battery;
private LinearGradient batteryPaint;
private Text valueText;
private List sections;
private Locale locale;
private InvalidationListener currentValueListener;
// ******************** Constructors **************************************
public BatterySkin(Gauge gauge) {
super(gauge);
orientation = gauge.getOrientation();
sections = gauge.getSections();
locale = gauge.getLocale();
currentValueListener = o -> setBar(gauge.getCurrentValue());
initGraphics();
registerListeners();
}
// ******************** Initialization ************************************
private void initGraphics() {
// Set initial size
if (Double.compare(gauge.getPrefWidth(), 0.0) <= 0 || Double.compare(gauge.getPrefHeight(), 0.0) <= 0 ||
Double.compare(gauge.getWidth(), 0.0) <= 0 || Double.compare(gauge.getHeight(), 0.0) <= 0) {
if (gauge.getPrefWidth() > 0 && gauge.getPrefHeight() > 0) {
gauge.setPrefSize(gauge.getPrefWidth(), gauge.getPrefHeight());
} else {
gauge.setPrefSize(PREFERRED_WIDTH, PREFERRED_HEIGHT);
}
}
batteryBackground = new Path();
batteryBackground.setFillRule(FillRule.EVEN_ODD);
batteryBackground.setStroke(null);
battery = new Path();
battery.setFillRule(FillRule.EVEN_ODD);
battery.setStroke(null);
valueText = new Text(String.format(locale, "%.0f%%", gauge.getCurrentValue()));
valueText.setVisible(gauge.isValueVisible());
valueText.setManaged(gauge.isValueVisible());
// Add all nodes
pane = new Pane();
pane.setBorder(new Border(new BorderStroke(gauge.getBorderPaint(), BorderStrokeStyle.SOLID, CornerRadii.EMPTY, new BorderWidths(1))));
pane.setBackground(new Background(new BackgroundFill(gauge.getBackgroundPaint(), CornerRadii.EMPTY, Insets.EMPTY)));
pane.getChildren().setAll(batteryBackground, battery, valueText);
getChildren().setAll(pane);
}
@Override protected void registerListeners() {
super.registerListeners();
gauge.currentValueProperty().addListener(currentValueListener);
handleEvents("VISIBILITY");
}
// ******************** Methods *******************************************
@Override protected void handleEvents(final String EVENT_TYPE) {
super.handleEvents(EVENT_TYPE);
if ("RECALC".equals(EVENT_TYPE)) {
setBar(gauge.getCurrentValue());
resize();
redraw();
} else if ("SECTION".equals(EVENT_TYPE)) {
sections = gauge.getSections();
resize();
redraw();
} else if ("VISIBILITY".equals(EVENT_TYPE)) {
valueText.setVisible(gauge.isValueVisible());
valueText.setManaged(gauge.isValueVisible());
redraw();
}
}
@Override public void dispose() {
gauge.currentValueProperty().removeListener(currentValueListener);
super.dispose();
}
// ******************** Private Methods ***********************************
private void setBar(final double VALUE) {
double factor = VALUE / gauge.getRange();
Color barColor = gauge.getBarColor();
if (gauge.isGradientBarEnabled() && !gauge.getGradientBarStops().isEmpty()) {
barColor = gauge.getGradientLookup().getColorAt(factor);
} else if (gauge.getSectionsVisible() && !sections.isEmpty()) {
int listSize = sections.size();
for (int i = 0 ; i < listSize ; i++) {
if (sections.get(i).contains(VALUE)) {
barColor = sections.get(i).getColor();
break;
}
}
}
if (Orientation.HORIZONTAL == orientation) {
batteryPaint = new LinearGradient(0, 0, size, 0, false, CycleMethod.NO_CYCLE,
new Stop(0, barColor),
new Stop(factor, barColor),
new Stop(factor, Color.TRANSPARENT),
new Stop(1, Color.TRANSPARENT));
} else {
batteryPaint = new LinearGradient(0, 0, 0, size, false, CycleMethod.NO_CYCLE,
new Stop(0, Color.TRANSPARENT),
new Stop(1 - factor, Color.TRANSPARENT),
new Stop(1 - factor, barColor),
new Stop(1, barColor));
}
battery.setFill(batteryPaint);
valueText.setText(String.format(locale, "%.0f%%", factor * 100));
valueText.relocate((size - valueText.getLayoutBounds().getWidth()) * 0.5, (size - valueText.getLayoutBounds().getHeight()) * 0.5);
}
private Path createVerticalBattery(final Path PATH) {
PATH.getElements().clear();
PATH.getElements().add(new MoveTo(0.25 * size, 0.175 * size));
PATH.getElements().add(new CubicCurveTo(0.25 * size, 0.175 * size,
0.25 * size, 0.925 * size,
0.25 * size, 0.925 * size));
PATH.getElements().add(new CubicCurveTo(0.25 * size, 0.96875 * size,
0.28125 * size, size,
0.325 * size, size));
PATH.getElements().add(new CubicCurveTo(0.325 * size, size,
0.675 * size, size,
0.675 * size, size));
PATH.getElements().add(new CubicCurveTo(0.71875 * size, size,
0.75 * size, 0.96875 * size,
0.75 * size, 0.925 * size));
PATH.getElements().add(new CubicCurveTo(0.75 * size, 0.925 * size,
0.75 * size, 0.175 * size,
0.75 * size, 0.175 * size));
PATH.getElements().add(new CubicCurveTo(0.75 * size, 0.13125 * size,
0.71875 * size, 0.1 * size,
0.675 * size, 0.1 * size));
PATH.getElements().add(new CubicCurveTo(0.675 * size, 0.1 * size,
0.6 * size, 0.1 * size,
0.6 * size, 0.1 * size));
PATH.getElements().add(new LineTo(0.6 * size, 0.0));
PATH.getElements().add(new LineTo(0.4 * size, 0.0));
PATH.getElements().add(new LineTo(0.4 * size, 0.1 * size));
PATH.getElements().add(new CubicCurveTo(0.4 * size, 0.1 * size,
0.325 * size, 0.1 * size,
0.325 * size, 0.1 * size));
PATH.getElements().add(new CubicCurveTo(0.28125 * size, 0.1 * size,
0.25 * size, 0.13125 * size,
0.25 * size, 0.175 * size));
PATH.getElements().add(new ClosePath());
return PATH;
}
private Path createHorizontalBattery(final Path PATH) {
PATH.getElements().clear();
PATH.getElements().add(new MoveTo(0.825 * size, 0.25 * size));
PATH.getElements().add(new CubicCurveTo(0.825 * size, 0.25 * size,
0.075 * size, 0.25 * size,
0.075 * size, 0.25 * size));
PATH.getElements().add(new CubicCurveTo(0.03125 * size, 0.25 * size,
0.0, 0.28125 * size,
0.0, 0.325 * size));
PATH.getElements().add(new CubicCurveTo(0.0, 0.325 * size,
0.0, 0.675 * size,
0.0, 0.675 * size));
PATH.getElements().add(new CubicCurveTo(0.0, 0.71875 * size,
0.03125 * size, 0.75 * size,
0.075 * size, 0.75 * size));
PATH.getElements().add(new CubicCurveTo(0.075 * size, 0.75 * size,
0.825 * size, 0.75 * size,
0.825 * size, 0.75 * size));
PATH.getElements().add(new CubicCurveTo(0.86875 * size, 0.75 * size,
0.9 * size, 0.71875 * size,
0.9 * size, 0.675 * size));
PATH.getElements().add(new CubicCurveTo(0.9 * size, 0.675 * size,
0.9 * size, 0.6 * size,
0.9 * size, 0.6 * size));
PATH.getElements().add(new LineTo(size, 0.6 * size));
PATH.getElements().add(new LineTo(size, 0.4 * size));
PATH.getElements().add(new LineTo(0.9 * size, 0.4 * size));
PATH.getElements().add(new CubicCurveTo(0.9 * size, 0.4 * size,
0.9 * size, 0.325 * size,
0.9 * size, 0.325 * size));
PATH.getElements().add(new CubicCurveTo(0.9 * size, 0.28125 * size,
0.86875 * size, 0.25 * size,
0.825 * size, 0.25 * size));
PATH.getElements().add(new ClosePath());
return PATH;
}
@Override protected void resize() {
double width = gauge.getWidth() - gauge.getInsets().getLeft() - gauge.getInsets().getRight();
double height = gauge.getHeight() - gauge.getInsets().getTop() - gauge.getInsets().getBottom();
size = width < height ? width : height;
if (size > 0) {
pane.setMaxSize(size, size);
pane.relocate((gauge.getWidth() - size) * 0.5, (gauge.getHeight() - size) * 0.5);
valueText.setFont(Fonts.latoLight(0.175 * size));
valueText.relocate((size - valueText.getLayoutBounds().getWidth()) * 0.5, (size - valueText.getLayoutBounds().getHeight()) * 0.5);
orientation = gauge.getOrientation();
if (Orientation.VERTICAL == orientation) {
createVerticalBattery(batteryBackground);
createVerticalBattery(battery);
} else {
createHorizontalBattery(batteryBackground);
createHorizontalBattery(battery);
}
redraw();
}
}
@Override protected void redraw() {
// Background stroke and fill
pane.setBorder(new Border(new BorderStroke(gauge.getBorderPaint(), BorderStrokeStyle.SOLID, new CornerRadii(1024), new BorderWidths(1))));
pane.setBackground(new Background(new BackgroundFill(gauge.getBackgroundPaint(), new CornerRadii(1024), Insets.EMPTY)));
locale = gauge.getLocale();
Color barBackgroundColor = gauge.getBarBackgroundColor();
batteryBackground.setFill(Color.color(barBackgroundColor.getRed(), barBackgroundColor.getGreen(), barBackgroundColor.getBlue(), 0.3));
valueText.setFill(gauge.getValueColor());
setBar(gauge.getCurrentValue());
}
}